Introduction
This manual provides essential instructions for setting up, operating, maintaining, and troubleshooting your ZTE Midnight Z768g (Net10) Smartphone. Please read this guide thoroughly to ensure proper use and to maximize the performance of your device.
1. Setup
1.1 What's in the Box
Your ZTE Midnight Z768g package includes:
- ZTE Midnight Z768G Smartphone (refurbished)
- Back housing
- Rechargeable battery
- Data sync cable
- Generic charger
- Micro SD card (4GB)
- SIM card
- Activation card
- User Guide and Quick Reference Guide
1.2 Inserting the SIM Card and Battery
Before using your phone, you must insert the SIM card and battery.
- Carefully remove the back housing of the phone.
- Insert the SIM card into the designated SIM card slot. Ensure the gold contacts are facing down and the card is correctly oriented.
- Insert the Micro SD card into its slot, if desired.
- Place the rechargeable battery into the battery compartment, aligning the contacts.
- Replace the back housing until it clicks securely into place.

Figure 1: ZTE Midnight Z768g Smartphone, illustrating the location for SIM card and battery insertion.
1.3 Charging the Device
Connect the data sync cable to the phone's USB Type C port and the generic charger. Plug the charger into a power outlet. Allow the phone to charge fully before initial use. The battery indicator on the screen will show charging status.
1.4 Initial Power On and Activation
To power on your phone, press and hold the Power button until the screen lights up. Follow the on-screen prompts to complete the initial setup. For activation, you will need a Straight Talk service plan. Activate your phone by following the instructions included in the box or by calling 1.877.430.2355.
2. Operating Instructions
2.1 Basic Navigation
The ZTE Midnight Z768g features a 5-inch LCD touchscreen. Use touch gestures such as tap, swipe, pinch-to-zoom, and long-press to navigate the interface. Physical buttons include Power/Lock and Volume Up/Down.
2.2 Making Calls
Tap the Phone icon on the home screen. Enter the phone number using the dial pad or select a contact from your address book. Tap the Call button to initiate the call.
2.3 Sending Messages
Open the Messages app. Tap the New Message icon. Enter the recipient's number or select from contacts, then type your message in the text field. Tap Send.
2.4 Connecting to Wi-Fi
Go to Settings > Network & Internet > Wi-Fi. Toggle Wi-Fi on. Select your desired network from the list, enter the password if prompted, and tap Connect.
2.5 Using the Camera
Tap the Camera icon to open the camera app. The phone features a rear camera. Point the camera at your subject and tap the Shutter button to take a photo. Shooting modes include Automatic.
2.6 Installing Applications
Access the Google Play Store app to browse and download applications. A Google account is required for app installation.
3. Maintenance
3.1 Battery Care
To prolong battery life, avoid extreme temperatures. Charge the battery regularly and avoid letting it fully discharge frequently. The battery is Lithium Ion.
3.2 Cleaning the Device
Use a soft, lint-free cloth to clean the screen and body of the phone. Avoid using harsh chemicals or abrasive materials.
3.3 Software Updates
Periodically check for software updates to ensure your device has the latest features and security patches. Go to Settings > System > System update.
3.4 Storage Management
The phone has 4 GB of internal memory storage capacity, expandable with a Micro SD card (4GB included). Regularly manage your files and applications to free up space and maintain optimal performance.
4. Troubleshooting
4.1 Common Issues
- Device not turning on: Ensure the battery is charged. Press and hold the Power button for at least 10 seconds.
- No network signal: Check if the SIM card is correctly inserted. Verify your service plan is active with Net10. Try restarting the phone.
- Apps crashing: Clear the app's cache (Settings > Apps & notifications > select app > Storage & cache > Clear cache). If the issue persists, reinstall the app.
- Slow performance: Close unnecessary background apps. Clear cache and temporary files. Ensure sufficient storage space is available.
4.2 Factory Reset
If your device experiences persistent issues, a factory reset may resolve them. This will erase all data on your phone. Back up important data before proceeding. Go to Settings > System > Reset options > Erase all data (factory reset).
5. Specifications
| Brand | ZTE |
| Model Name | Z768g |
| Operating System | Android |
| Memory Storage Capacity | 4 GB |
| Screen Size | 5 Inches |
| Display Type | LCD |
| Wireless Service Provider | Net10 |
| Cellular Technology | 4G |
| Connectivity Technology | GSM |
| Colour | Blue |
| SIM Card Slot Count | Single SIM |
| Connector Type | USB Type C |
| Headphones Jack | No headphone jack |
| Camera Description | Rear |
| Battery Description | Lithium Ion |
| Item Weight | 0.1 Pounds |
| Item Dimensions | 23.4 x 12.7 x 5.1 centimetres |
| Phone Talk Time | 6 Hours |
| Model Year | 2018 |
6. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your device or contact Net10 customer service directly. As this is a refurbished device, specific warranty terms may vary. Please retain your proof of purchase.
For activation support, you can call 1.877.430.2355 as mentioned in the product description.



