ZEBRA 4490 Mobile Computers

پيداوار جي وضاحت

• آپريٽنگ سسٽم: Android 14
• Update Method: A/B or Virtual A/B system
• Supported Devices: Family of Products on 4490

پيداوار جي استعمال جون هدايتون

تعارف
Before proceeding with the OS update, ensure you have read through the user manual thoroughly.

Virtual A/B OS Update Implementation
The update process involves applying the Full OTA package in the background via Android AB mode when initiated through an EMM.

How A/B or Virtual A/B system is different from Non-A/Bsystem
There are distinct differences in how the update process occurs based on the device’s system type (A/B, Non-A/B, Virtual A/B).
مھرباني ڪري تفصيلي ھدايتن لاءِ دستي ڏانھن رجوع ڪريو.

OS Update from Zebra.com and LifeGuard Over the Air (OTA)
Users can update the OS either through Zebra.com or LifeGuard Over the Air (OTA) 3.0. The update options include Full OTA OS Upgrade, Full OTA OS Downgrade, Delta OTA Upgrade, and Delta OTA Downgrade. Please note that LifeGuard Over the Air (OTA) 3.0 does not support OS downgrade directly.

تعارف

Zebra uses the Virtual AB mechanism for OS updates on 4490 products. This document intends to advise Zebra customers and service about

1. Virtual A/B OS Update mechanism
2. How to apply OTA packages
3. Differences between Virtual A/B, A/B devices and legacy Non-A/B systems

List of supported devices:
4490 A14 – MC3400, MC3450, MC9400, MC9450, TC53e, TC58e, TC53ES, TC58ES, PS30, WT5400, WT6400

Symbols and Notes used in this document

Virtual A/B OS Update implementation

• Full OTA and Delta OTA (Patch) updates can occur while the system is running, without interrupting the user. This means users can continue to use their devices during an OTA upgrade. After the installation of OTA package is completed, the device reboots into the updated image.
• Virtual A/B updates done from Android mode can roll back to the previous OS in case of a failure during OS update even without having a physical backup slot so that the device remains usable.
• Virtual A/B devices in comparison to A/B devices take up lesser flash storage and provide a more flexible OS update mechanism to accommodate changes to partition size and layout.
• Updates can be streamed to devices supported by this document, removing the need to download the complete package before installing it.
• Full OTA packages and Delta OTA packages of each LG release will be available on Zebra.com.
• Delta OTA packages can be streamed and installed on the device.
• AB updates can be streamed using LifeGuard Over the Air (OTA) 3.0 APIs.
• OTA Delta packages available on Zebra.com will be sequential.
• For customers who are using Zebra LifeGuard Over the Air (OTA) solution, you can upgrade to the target OS LG software version in a single step with the help of a single OTA delta package. This OTA delta package is called true delta package which contains the exact delta required to install the target LG software version.
  This true delta OTA package will be serviced by LifeGuard Over the Air (OTA) solution and will not be available on zebra.com. You can find more details on the LifeGuard Over the Air (OTA) solution at the Zebra TechDocs portal.
• The size of OTA delta packages will be much smaller than Full OTA packages.

How A/B or Virtual A/B system is different from a Non-A/B system

OS اپڊيٽ استعمال ڪيس	Non-A/B	A/B ورچوئل A/B	نوٽس
چمڪندڙ مڪمل OTA پيڪيج	وصولي موڊ	Android A/B موڊ	AB: Device shall apply the Full OTA Package in the background via Android AB mode when applied via EMM.   Users can manually enter recovery mode to apply the Full OTA package, too.   Non-AB: Device shall boot into recovery mode to apply any OTA package.
Flashing Delta OTA Package	وصولي موڊ	Android A/B موڊ	AB: The Device will apply the OTA delta package in the background via Android AB mode.   Non-AB: Device shall boot into recovery mode to apply any OTA package.
Flashing Reset Packages	وصولي موڊ	وصولي موڊ	AB: Device shall boot into recovery mode to apply Enterprise and Factory Reset packages   Non-AB: Device shall boot into recovery mode to apply Enterprise and Factory Reset packages
او ايس اپڊيٽ لاءِ ڊوائيس جو ڊائون ٽائيم	–	+	AB: Full and Delta OTA updates can occur while the system is running, without interrupting the user. At the end, the device reboots into the newly installed image. Rebooting to a new OS image is the only device downtime the user will experience.   Non-AB: Device reboots to recovery mode to install reset or special packages only. Users cannot use the device while installing OTA package.
عيب رواداري	–	+	AB devices are fault-tolerant by providing a backup slot. If the device fails to boot up, then it will fall back to the backup slot (reboot back into the old partition).   Non-AB: If the device fails to boot up, then the device is bricked.
Patch upgrades	Y	Y
Patch downgrades	Y	N	Patch downgrades are not supported. Users have the option to use the Full OTA package of the specific patch to perform OS downgrade.   All products supported in this document have Version Binding implementation, which will cause ڊيٽا ري سيٽ on downgrade to an پراڻو Google SPL يا پراڻو ڊيسٽ ورزن.
Hotfix patch support	Y	Y
پيچ جي ماپ	–	+	AB delta packages will be considerably smaller compared to non-AB delta packages available for Zebra devices.   لائف گارڊ اوور دي ايئر (OTA) APIs استعمال ڪرڻ وارا گراهڪ سچا ڊيلٽا پيڪيج استعمال ڪرڻ جي قابل هوندا.
Silent Update	–	Y	AB Full and Delta OTA updates are silent to the user

OS Update from Zebra.com and LifeGuard Over the Air (OTA)

OS اپڊيٽ استعمال ڪيس	Zebra.com	لائف گارڊ اوور دي ايئر (OTA) 3.0	نوٽس
Full OTA OS Upgrade	Y	Y
Full OTA OS Downgrade	Y	N	LifeGuard Over the Air (OTA) 3.0 does not support OS downgrade. EMM can downgrade to an older version by downloading   a   Full   OTA   package   of   an   older   version.   Zebra.com customers can downgrade by pulling the Full OTA of the target OS version from zebra.com؟ and pushing the OTA package to the device from their EMM console.
Delta OTA Upgrade	Y Sequential Delta	Y True Delta	LifeGuard Over the Air (OTA) – Delta OTA packages will be streamed for customers using the LGE solution.   Zebra.com – Delta upgrades are sequential and can be installed using StageNow/EMM.
Delta OTA Downgrade	N	N	Delta OTA packages cannot be used for a Downgrade to an older software version.
اسٽريمنگ سپورٽ	N	Y	LifeGuard Over the Air (OTA) solution will enable AB streaming of OTA Full and Delta packages.   Zebra.com customers will have to manually download full OTA or delta packages to the device and install them same way. OTA packages downloaded from zebra.com؟ can be streamed to the device; this requires customers to set up their AB streaming server and host the OTA package downloaded from zebra.com؟
Reset Packages or Special Packages	Y	N	LifeGuard Over the Air (OTA) 3.0 APIs do not support flashing of Reset or Special packages.   Zebra.com customers can download and flash Reset packages or any special packages available to them.

Sequential nature of Delta OTA packages
پيچ 1 (U01) کان پيچ 5 (U05) کي اپڊيٽ ڪرڻ لاءِ، ھڪڙي کي لازمي طور تي سڀني وچولي ڊيلٽا پيڪيجز کي لاڳو ڪرڻ گھرجي (يعني، U01، U02، U03، U04 ۽ U05) ساڳئي ترتيب ۾.

پيچ	Build ID (XXX – Platform code)	ايس پي ايل
U01	13-16-17.00-TG-U01-STD-XXX-04	اپريل 2023
U02	13-16-17.00-TG-U02-STD-XXX-04	مئي 2023
U03	13-16-17.00-TG-U03-STD-XXX-04	جون 2023
U04	13-16-17.00-TG-U04-STD-XXX-04	جولاءِ 2023
U05	13-16-17.00-TG-U05-STD-XXX-04	آگسٽ 2023

شين کي آسان بڻائڻ لاءِ، صارف ڊيلٽا پيڪيجز کي ترتيب سان لاڳو ڪرڻ کان پاسو ڪري سگھن ٿا ۽ سڌي طرح U05 جي مڪمل OTA پيڪيج کي چمڪيو.

Android A/B Mode for OS Update

Full and delta OTA packages will be installed via Android AB mode. As part of this:

• a. Full and delta OTA packages will be applied on the device silently in the background.
• b. Users can continue using the device while OTA packages are applied.
• c. Post installation is complete, a device notification will be displayed confirming the installation is completed and device shall auto-reboot after 15 secs.
• d. Device will auto-reboot to boot into the newly installed OS image after the OTA package installation is completed successfully.
• e. Customers can also configure the device to wait for Update clients (e.g., FOTA) or EMMs to notify the device to reboot.
• f. AB streaming mode will be used by default for customers using LifeGuard Over the Air (OTA) solution to update the device. The OTA package will not be completely downloaded and saved on device before starting the installation. Rather the OTA package contents will be streamed to the device and installed.
• g. StageNow tool can be used to perform OS Update using an OTA package in manual mode (without the need to go into Recovery mode). Please search and click on the Power Manager section in the link provided.

OTA package consists of the following:

1. HLOS images (system, vendor, boot, and dtbo)
2. Non-HLOS images (QCOM images)

Recovery Mode for OS Update

Reset packages and any special packages to update Zebra Device Management partitions will be installed via recovery mode.
As part of the update via StageNow or EMM:

• a) The device will be automatically rebooted to Recovery mode.
• b) Reset packages or special packages will be applied using Recovery mode.
• c) The device will reboot back to the home screen after installation is completed in Recovery mode.

Customers can enter recovery mode using key combinations or using the “adb reboot recovery” command.

Reset Packages and special recovery packages..

Zebra devices support reset packages to erase the userdata and the enterprise partition. These packages will be applied via recovery mode.

پيڪيج	ڄاڻ
انٽرپرائز ري سيٽ	Erase the userdata partition and persist the enterprise partition
فيڪٽري ري سيٽ	Erase both the userdata and the enterprise partition
Special recovery packages	زبرا ڊيوائس مينيجمينٽ پارٽيشنز کي تبديل ڪرڻ لاءِ استعمال ٿيل پيڪيجز يا WLAN ريجن ڪوڊ، آڊيو ٽيوننگ کي اپڊيٽ ڪرڻ لاءِ پيڪيجز files, etc., can be applied via recovery mode.

سڀ ڊوائيسز
The reset operation can take more time if there are updated snapshots to be merged before the data reset operation.

OS Update Operations: Upgrade and Downgrade

• Customer can upgrade the device to a newer OS dessert initial release, OR any latest LG software version within the same dessert OR on a higher dessert release if the Google security patch level of the OS image to be installed is higher than the Google security patch level on the device.
• If the device is running on a higher Google security patch level compared to the OS image to be installed, then the customer cannot upgrade to such an image. This behavior follows Google security requirements to protect devices from being exploited by any known security vulnerabilities. User data is persisted on all OS Upgrade operations.
• Customers can perform an OS downgrade to an older OS dessert image or LG software image having a lower Google security patch level compared to the Google security patch level on the device. If a customer performs an OS downgrade operation, user data will be erased automatically.

سڀ ڊوائيسز
OS Downgrade تي ڊيٽا جي تسلسل جي حمايت نه ڪئي وئي آهي.

For all products supported in this document, the following is the experience related to OS Update:

1. Customers shall be able to perform OS Upgrade (move to a higher version** of OS Image) using Full OTA package.
2. Customers shall be able to perform OS Upgrade (move to a higher version** of OS Image) using the delta OTA image.
3. Customers can downgrade (move to an older/lower version* of OS Image) operation using Full OTA packages only.
4. Separate interfaces are provided to perform OS Upgrade & OS downgrade operations.
5. All OS downgrade operations will result in an Enterprise Reset operation. i.e., user data is erased on OS downgrade operation.

** higher version → Following parameters will be considered to identify if an OS image to be installed is higher or lower compared to device OS version.

• هڪ او ايس گوگل سيڪيورٽي پيچ ليول (ro.build.version.security_patch, ro.vendor.build.security_patch)
• b. OS software version (ro.device.patch.version)
• c. OS Hotfix version
• d. Custom OS version

OS Upgrade and Downgrade via EMMs

Kindly refer to the MX tech docs present on the Zebra TechDocs portal for more details on supported CSP interfaces for OS Upgrade and Downgrade. https://techdocs.zebra.com/mx/powermgr/

او ايس اپڊيٽ via EMM	او ايس اپڊيٽ	OS Downgrade
ايڪشن ري سيٽ ڪريو	10 – OS Upgrade	11 – OS Downgrade
Allowed OTA پيڪيجز	مڪمل OTA پيڪيج، OTA پيچ تصوير، UPL	مڪمل OTA پيڪيج
Data persistence	ها	نه Auto data reset shall be performed
Allowed OS Update use case	UPGRADE ONLY Upgrade from the current OS to a higher OS software version Upgrade from current OS to a higher SPL version Upgrade from current OS to a higher version of OS Upgrade from current OS to a higher Hotfix version Upgrade from Patch to a higher software version Upgrade from Patch to a higher SPL version Upgrade from Patch to a higher version of OS Upgrade from Patch to a higher Hotfix version Upgrade from Hotfix to a higher Hotfix version Upgrade from Hotfix to a higher SPL version Upgrade from Custom OS to a higher Custom version. Upgrade from Custom OS to a higher Custom OS SPL version Upgrade from Custom OS to a higher Custom OS OS version of OS	DOWNGRADE ONLY Downgrade from the current OS to a lower/older OS version.. Downgrade from the current OS to an OS software version on a lower/older OS version. Downgrade from Patch to a lower/older OS version. Downgrade from Patch to a lower/older Hotfix version.. Downgrade from Hotfix to a lower/older Hotfix version.. Downgrade from Hotfix to a lower/older SPL version.. Downgrade from Custom OS to a lower/older Custom software version.on Downgrade from Custom OS to a lower/older Custom OS SPL version Downgrade from Custom OS version to a lower/older Custom OS version Downgrade from Custom OS version to Custom OS software version on a lower/older Custom OS version

سڀ ڊوائيس

• The ES reboot flag shall not be considered in case of OS downgrade.
• Performing an OS upgrade to a higher version but having a lower SPL will result in data reset.

Recovery UI also has been modified for OS Upgrade and Downgrade. Separate OS Upgrade and Downgrade options have been enabled in the recovery UI to perform the OS Update operation.
Kindly visit the sections below in this document for a detailed explanation of recovery mode.

AB Streaming Update

• An OTA package can reside on the server, and supported devices can stream the package from the server directly to the device without saving the OTA package on the device. The OS update happens in the background, and a user notification shall be displayed to indicate that the OS update operation is in progress.
• OS Update package can be streamed to A/B devices, removing the need to download the OTA package to the device before installing it. With the help of AB Streaming mode user can perform OS update operations even if disk space is low. The same OTA package can be used for both AB streaming and AB seamless updates.
• AB streaming mode will be used by default for customers using the LifeGuard Over the Air (OTA) solution to update the device.
• The delta OTA package will not be completely downloaded and saved on the device before starting the installation. Rather, the delta OTA package contents will be streamed to the device and installed. Similarly, AB streaming updates will be used if there is a need to install a Full OTA package from LifeGuard Over the Air (OTA) solution.
• Customers who self-manage their devices will have to download the required OTA package from zebra.com؟ and copy the same to the device. AB Streaming update will not be applicable for this use-case.

The table below depicts the arguments to be used for AB streaming update:

آپريشن	ايڪشن ري سيٽ ڪريو	تفصيل
اپ گريڊ	12 – OS Upgrade Streaming	اسٽريمنگ سرور ذريعي هڪ مڪمل پيڪيج/پيچ او ايس اپ گريڊ لانچ ڪري ٿو.
DOWNGRADE	13 – OS Downgrade Streaming	Launches a full-package OS Downgrade via streaming server.

• While the AB streaming update is in progress, a progress bar shall show the progress of the operation. After the AB streaming update has completed, the device shall show a notification that in 15 seconds device will auto-reboot. After 15 seconds, the device will auto-reboot into a new OS image. OS update status is made available via OEMInfo as well.
• Device needs to authenticate with server before the OTA package residing on the server can be streamed. The EMM solution or FOTA solution who is initiating OS Update job will have to generate the authentication Id and share with device using Power Manager CSP.

The following Authentication modes are supported for AB streaming mode.

• Token Auth
• Username & Password (Basic Auth).
• No Authentication

Device supports the following protocols to perform AB streaming:

• HTTP
• https (recommended for better security). Installing Full (upgrade/downgrade) and Delta OTA packages can be accomplished using AB streaming update. All other Enterprise use cases of Zebra cannot be supported by the AB Streaming update.
• Installing multiple OTA packages using UPL is not supported by AB streaming update.

User Notification for Full OTA package Upgrade or Downgrade

A few of the features of user notifications during OS update:

1. This is applicable for the Full OTA package and the OTA Patch image.
2. At the start of Full and Diff OTA package installation, an Icon (Android system icon) will be displayed on the Status Bar.
3. On pulling down the notification drawer, a notification will be displayed informing that OS Update is in progress and device will Reboot automatically on completing the same.
4. The user will have no control over this notification. i.e., User CANNOT
   a. Pause/Snooze the OS Update request
   b. Cancel OS Update request
   Prevent the Reboot of the device.
5. Notification can be cleared by the User. Once the notification is removed, no new notification shall be displayed again.
6. If EMMs have selected “Suppress Reboot” option while installing a Full OTA package, then device will not auto-reboot. User Notification too indicates the same and waits for EMMs to reboot the device.
7. The notification will also display system interrupts blocking OS Update process. E.g., Low Battery, Media Eject etc.
8. Devices supporting Battery Warm Swap disable all notifications while Warm Swap is in progress.

OS Update – Screenshots

وصولي موڊ

From the recovery UI,  customers can install Full OTA packages and Reset packages.

For products supported in this document, Recovery UI provides the following options to perform various operations in recovery mode and apply different packages:

• Reboot the system now
• Apply an upgrade from ADB
• Apply an upgrade from the SD card
• Apply the upgrade from the USB drive
• Apply downgrade from ADB
• Apply downgrade from the SD card
• Apply downgrade from the Uthe SB drive
• View بحالي لاگ
• بجلي بند

Different UI options within Recovery mode and their functionalities are explained below in detail.

All Devices Delta OTA (Patch) images are not supported in Recovery mode.

All Devices: Please ignore the Device Name and Build Fingerprint displayed on the screenshots.

• Reboot the system now.
  When this UI option is selected by the user, the device will boot to the OS.
• Apply an upgrade from ADB..
  Upgrade packages via adb will be applied when we select this option. User can only perform OS Upgrade operation and not downgrade operation using this option.استعمال ڪندڙ کي ايڊب سائڊ لوڊ انٽرفيس ذريعي پيڪيج جو نالو داخل ڪرڻ گهرجي.
• Apply an upgrade from the SD card..
  Upgrade packages via External SD card will be applied when we select this option. Users can only perform OS Upgrade operation and not downgrade operation using this option.هن اختيار کي استعمال ڪندي، گراهڪ مڪمل OTA پيڪيجز استعمال ڪندي OS اپ گريڊ ڪري سگھن ٿا ۽ SD ڪارڊ مان ري سيٽ پيڪيجز انسٽال ڪري سگھن ٿا.
• Apply the upgrade from the USB drive.
  Upgrade packages via USB drive will be applied when we select this option. Users can only perform OS Upgrade operation and not downgrade operation using this option.Using this option, customers can perform OS Upgrade using Full OTA packages and install Reset Packages from USB drive.
• Apply downgrade from AD.B.
  Downgrade packages via adb will be applied when we select this option. Users can only perform the OS Downgrade operation and not the upgrade operation using this option.
  Once selecting this option user should enter the package name via the adb side load interface.
• Apply downgrade from the SD card.
  Downgrade packages via External SD card will be applied when we select this option. User can only perform OS Downgrade operation and not upgrade operation using this option.
  Using this option, customers can perform an OS downgrade using Full OTA packages and install Reset Packages from an SD card.
• Apply downgrade from the USB drive..
  Downgrade packages via USB drive will be applied when we select this option. Using this option, customers can perform OS Upgrade using Full OTA packages and install Reset Packages from USB drive.
  The user can only perform the OS Downgrade operation and not the upgrade operation using this option.
• View بحالي لاگ
  هن آپشن کي چونڊڻ سان استعمال ڪندڙ ڪري سگهي ٿو view وصولي لاگ.وصولي لاگ /tmp/recovery.log ۾ موجود هوندا. "Back" کي منتخب ڪندي، اسان مکيه مينيو ڏانهن واپس وڃي سگهون ٿا.
• بجلي بند
  By selecting this option user can power off the device.

ٻيون وصولي UI اسڪرين
OTA update is already applied, and the device has not yet rebooted

سڀ ڊوائيسز 

• User must reboot the device to ‘Home Screen’ and make sure OS is upgraded successfully to perform another OS update from recovery mode.
• توھان کي 1 منٽ تائين انتظار ڪرڻو پوندو. ڊوائيس هن وقت استعمال ڪرڻ جي قابل آهي.
• It is advisable not to reboot or perform Factory Reset operations as soon as the device boots up after an OS update.

Installation from Recovery Mode

سڀ ڊوائيسز 

• باقاعده OS اپڊيٽ لاءِ ترجيحي طريقو استعمال ڪري رهيو آهي LifeGuard Over the Air (OTA) 3.0 APIs يا StageNow/MDM حل.
• وصولي موڊ OS تازه ڪاريون ڊوائيس بحالي جي عملن لاء استعمال ٿيڻ وارا آھن.

If you wish to perform a system upgrade from an upgrade file تان ڊائون لوڊ ڪيو ويو Zebra.com support page, there are two options. Both methods are summarized below:

• a) For a single upgrade, the upgrade file can be loaded onto a removable memory device and inserted into the device to be upgraded.
• b) For multiple devices to upgrade, it may be easier to use the ADB command method. (ADB or Android Debug Bridge is a tool used to communicate with Android devices from a host computer. Information can be found here: https://developer.android.com/studio/command-line/adb)

a) SD ڪارڊ يا USB ڊرائيو استعمال ڪندي هڪ سسٽم اپڊيٽ ڪرڻ

1. Select the appropriate upgrade file from the Zebra support web صفحو.
2. اپڊيٽ ڊائون لوڊ ڪريو file ميزبان ڪمپيوٽر ڏانهن.
3. Copy the grade file to the removable memory (either SD card or USB drive) root directory using the host computer.
4. Remove the memory device from the host computer (be sure it is properly ejected first) and install it into the device being upgraded.
5. Make sure the device battery level is at least 30%. Invoke recovery mode on device. To restart the device press and hold the power button and select restart from the on-screen menu.
6. Customers can enter Recovery mode using the following key combinations. While the device is powered off, press and hold the indicated buttons until the Zebra screen appears. If the device was restarted in the preceding step, there’s no need to press the Power Button again.
   

   TC5x	PTT Key + Power Button
   MC94x, MC3400 (Gun)	Gun Trigger + Power Button
   پي ايس 30	Scan Button + Reboot Tool
   ڊبليو ٽي 5400، ڊبليو ٽي 6400	P1 Key + Power Button

   All Devices: Please refer to product-specific documentation for additional details.
   OR
   using the “adb reboot recovery” command.
7. From the on-screen menu, using volume keys, scroll to “Apply upgrade from SD Card” or “Apply upgrade from USB Drive”. When the selection is highlighted, press the power key to select.
8. When the installation is complete, select the reboot option and press the power button to reboot the device.

b) Performing a System Update Using ADB Commands from the Host Computer

سڀ ڊوائيسز 

• Delta OTA packages are not supported in recovery mode, please use the corresponding Full OTA package.
• Delta OTA packages should be used with LifeGuard Over the Air (OTA) APIs or the StageNow/MDM حل.

1. Select the appropriate upgrade file from the Zebra support web صفحو.
2. اپڊيٽ ڊائون لوڊ ڪريو file ميزبان ڪمپيوٽر ڏانهن.
3. پڪ ڪريو ته ADB ڊرائيور هوسٽ ڪمپيوٽر تي انسٽال ٿيل آهن.
4. Connect the device to the host computer with the proper USB cable. Make sure the device has at least 30% battery level before starting the upgrade process.
5. Go to the Settings application on the device and enable Developer options by following this link: https://developer.android.com/studio/debug/dev-options
6. Select one Settings application: System > Advanced > Developer options.
7. Slide the switch for Developer Options to the ON position.
8. Slide the switch for USB Debugging to the ON position. Allow USB debugging? A dialog box appears.
9. Touch OK. This allows the host computer and the device to communicate via USB.
10. On the host computer, open a command prompt window and use the adb command: adb devices
11. Type the following command and press Enter: adb reboot recovery
12. سسٽم ريڪوري اسڪرين ڊوائيس تي ظاهر ٿئي ٿي.
13. Press the Volume Up and Volume Down buttons on the device to navigate to Apply upgrade from ADB.
14. Press the Power button to select this option.
15. On the host computer, command prompt window and type: adb sideload <file> where <file> = رستو ۽ fileزپ جو نالو file.
16. Press Enter on the hottest PC at the prompt. The System Update starts installing (progress appears as a percentage in the Command Prompt window), and then the System Recovery screen shows update progress information on the device.
17. When the update is complete,  select the reboot option and press the Power button to reboot the device.

c) سسٽم اپڊيٽ جي انسٽاليشن جي تصديق

1. سيٽنگون ڏانھن وڃو.
2. فون بابت ٽچ ڪريو.
3. بلڊ نمبر تائين ھيٺ لٿو.
4. پڪ ڪريو ته بلڊ نمبر نئين سسٽم اپڊيٽ پيڪيج سان ملندو آهي. file نمبر.

UPL (Update Package List) mechanism

UPL allows users to perform of the below use-cases in a single step for the device administrator

• Apply multiple firmware OTA packages along with an OS OTA package
• Apply any configuration OTA packages along with an OS OTA package
• Apply reset packages after installing an OS image
• Perform device reset using commands instead of packages

AnAPL file can consist of combinations of the following package types:

• Full OTA package
• Delta OTA package
• Reset packages
• حڪم بحال ڪريو
• Firmware update packages
• Configuration packages

All Devices. An UPL file cannot consist of both Full OTA and Delta OTA packages.

سڀ ڊوائيس گراهڪ can directly install the Full OTA package of the required LG OS version.

The Full OTA package can be downloaded from zebra.com؟. If a customer is using the LifeGuard Over the Air (OTA) solution, then the device can be directly updated to the target LG software version using a delta OTA package provided by LifeGuard Over the Air (OTA).

Rules to build a UPL. UPL can consist of the following combinations:

• Full OTA package + Reset/Special package
• Full OTA package + Reset command
• Delta OTA package (e.g., LG software version) + Reset/Special package
• Delta OTA package (e.g., LG software version) + Reset command

ڊوائيس ھيٺ ڏنل UPL حڪمن کي استعمال ڪندي ري سيٽ ڪري سگھجي ٿو ۽ A10 ۽ مٿي تي سپورٽ آھن. هي UPL استعمال ڪندي ري سيٽ پيڪيج کي دٻائڻ جي ضرورت کان بچي ٿو.

• EnterpriseReset
• فيڪٽري ري سيٽ

يو پي ايل files should NOT be configured as below:

• Combination of Full OTA packages or Delta OTA packages (e.g., LG software version)
• New lines present after the last line in the PL file
• Trailing tab spaces are present after each line in the UPL file
• Unwanted characters are rremovedafter each line in the UPL file
• Contains only UPL commands

A few valid exampليس يو پي ايل files هيٺ ڏنل آهن:

UPL with Reset Packages	UPL with Reset Commands
Sample1.upl	Sample2.upl
package:Full_OTA_Package.zip	package:Full_OTA_Package.zip
package:FactoryReset.zip	command:FactoryReset
Sample3.upl	Sample4.upl
package:Patch_OS_Package.zip	package:Patch_OS_Package.zip
package:FactoryReset.zip	command:FactoryReset
Sample5.upl	Sample6.upl
package:Baseline_Delta_Package.zip	package:Baseline_Delta_Package.zip
package:FactoryReset.zip	command:FactoryReset

يو پي ايل انسٽال ڪرڻ لاءِ، يو پي ايل کي نقل ڪريو file ۽ ان سان لاڳاپيل OTA پيڪيجز ڊوائيس تي ساڳئي هنڌ تي. چونڊيو UPL fileپيڪيجز کي انسٽال ڪرڻ لاءِ نالو ۽ نه انفرادي OTA پيڪيج جا نالا.
If UPL and OTA packages were copied to internal memory (/sdcard or /data/tmp/public), then these files should not be reused.

سڀ ڊوائيسز  

• يو پي ايل files and OTA packages residing in the internal memory of the device should be deleted after they have been applied. Do not re-use the same packages or UPL fileايس. جي
• يو پي ايل file cannot be installed using the adb sideload mode.
• The device will reboot after applying an OTA package if Reset is included in UPL

If UPL consists of a Full or Diff OTA package and a special package:

• The full OTA package shallbe installedd in Android AB mode (background update)
• Special packages will be installed in recovery mode.
• The device will auto-reboot to recovery mode after the Full OTA package installation has completed.
• The suppress boot flag shall not be considered in the UPL update.

Status messages to EMMs

OS Update status is sent as an intent. Data Analytics captures the same and stores it in the OEMInfo content provider. EMMs can read the OEMInfo content provider to fetch the exact status of the OS Update operation. The device does not display any kind of UI notification when an OS Update is in progress/applied/failed.

Possible device interruptions during an OTA package update

While a Full OTA Package is installed via AB mode in the background, users of the device will be able to use the device. Thus, devices might be put in various states that can interrupt the ongoing OS Update. Device states thawhat t can interrupt the OS Update are:

1. Low Battery condition. If the battery falls below 30% capacity, the ongoing OS Update will be interrupted and resumed only after connecting to a battery source.
2. Performing a Battery Warm Swap or Hot Swap while the OS update is in progress will cancel the update.
3. Device can be shut down, enter critical battery state, media ejected (external SD Card), or low storage in userdata partition (approximately 100MB). In all the above scenarios, the ongoing OS Update will be cancelled.
4. If device is rebooted in middle of an OS Update operation, the ongoing job will be suspended for seamless update and cancelled for steaming update. On reboot of device, OS Update job will be resumed and completed only in case of a seamless update.
5. LifeGuard Over the Air (OTA) can perform an ongoing OSOS update.

AB Fallback mechanism

In the Android AB system, if an OTA fails to apply (for example, because of a bad flash), the user will not be affected. The user will continue to run the old OS (existing OS image), and the customer can re-attempt the update.
If an OTA update is applied but fails to boot, the device will reboot back (fallback) into the old/existing OS image and device remains usable. This allows our customer to re-attempt the update.

Rescue Party Mode

ڪڏهن ڪڏهن ڊوائيسز ختم ٿي سگهن ٿيون ريبوٽ لوپس ۾، جيڪي گراهڪ جو سبب بڻجن ٿا file support tickets or warranty inquiries. This process is frustrating for customers and expensive.
Android includes a feature that sends out a “rescue party” when it notices core system components are stuck in crash loops. Rescue Party then escalates through a series of actions to recover the device. As a last resort, Rescue Party reboots the device into recovery mode and prompts the user to perform a factory reset.
Rescue party logs can be collected using RxLogger. One must enable the RxLogger plugin for recovery mode to collect rescue party logs.

Recovery logs

صارف RxLogger استعمال ڪندي وصولي لاگ حاصل ڪري سگھن ٿا. ھڪڙي کي فعال ڪرڻ گھرجي RxLogger پلگ ان وصولي موڊ لاءِ وصولي لاگ گڏ ڪرڻ لاءِ.

Thuser will not be able to pull recovery logs from /data/tmp/public/recovery path. The last 10 Recovery logs are saved under this folder for debug purposes.

اڪثر پڇيا ويا سوال

Q: Can I perform an OS downgrade using LifeGuard Over the Air (OTA) 3.0?
A: No, LifeGuard Over the Air (OTA) 3.0 does not support OS downgrade directly. However, EMM can facilitate a downgrade to an older version by downloading a Full OTA package of the desired older version.

دستاويز / وسيلا

ZEBRA 4490 Mobile Computers [pdf] استعمال ڪندڙ ھدايت 4490 Mobile Computers, 4490, Mobile Computers, Computers

حوالو

• استعمال ڪندڙ دستي