FNIRSI FNB58 USB Fast Charge Tester

1. Versions and Updates

As instrument products have many functions and frequent software and hardware updates, the manual may be updated at any time. Please be aware. Please get the latest update information on the official website.

2. Overview

The FNB58 USB tester is a high-reliability, high-safety USB voltage and current detection meter and a mobile communication terminal fast charging trigger. It has a 2.0-inch full-color ultra-wide viewing angle TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. It uses an external 16-bit ADC and a PD protocol physical chip. It can be used to measure the power supply or power consumption of products such as USB interfaces, mobile phone chargers, and U disks. It can be used to measure the charging power of mobile phones and the input and output of mobile power supplies. It can also be used to test the fast charging protocol of chargers.

This instruction manual includes relevant safety information, warning tips, and solutions to common abnormal situations. Please read the relevant content carefully and strictly abide by all warnings and precautions.

3. Safety Precautions

• Do not connect the monitoring interface to a power supply exceeding 28V.
• Do not connect the PC connection port to a power source exceeding 16V.
• Only one pair of monitoring interfaces (one input port, one output port) can work at the same time. When a pair of monitoring interfaces is working, it is forbidden to connect to the equipment on other monitoring interfaces. (Except the PC connection port, the PC port can be connected to an external power supply)
• When using the fast charge trigger module, please do not connect equipment that cannot withstand high voltage to any monitoring interface.
• After using the PD trigger/monitor/conversion/read E-Marker cable function, please turn the PD communication switch in the lower right corner back to the OFF position.
• Do not charge the phone after the fast charge is triggered. Therefore, if the phone is damaged, the manufacturer is not responsible for any damage to the phone.

4. Performance Description

4.0.1 Voltage and Current

1. The highest six-digit display of voltage, current, and power, with the highest resolution of 0.00001 (V/A/W).
2. 10 sets of switchable capacity, power, and time statistics.
3. 1 set of voltage and current curve records, maximum support 9 hours.
4. Support low-speed waveform (voltage, current, D+, D-) drawing, 2sps-100sps sampling rate.
5. Support high-speed ripple (voltage, AC coupling) drawing, up to 4Msps sampling rate.

4.0.2 Fast Charge Trigger

• QC2.0, QC3.0 trigger
• Huawei FCP, SCP trigger
• Samsung AFC trigger
• PD2.0/3.0 Trigger
• VOOC/WARP Trigger
• SuperVOOC 1.0/Super VOOC 2.0 Trigger
• The above protocols all support automatic monitoring.
• MTK-PE automatic detection.
• Support QC2.O->PD2.0 protocol conversion.
• Support a maximum of 24 hours for a limited time trigger, and automatically close the trigger when the time comes.

4.0.3 Wire Identification Class

1. The internal resistance measurement of the wire by the differential pressure method.
2. E-Marker Cable chip reading.
3. DASH Cable data reading.

4.0.4 Miscellaneous

• Record of startup time.
• Onboard temperature measurement.
• Gravity sensor, automatically switch the display direction.
• PD monitor.
• Analog DASH cable.
• Apple 2.4A acceleration.

5. Structure Appearance

The device features the following ports and controls:

• 1. Input monitoring port: USB-A, 5-PIN male.
• 2. Input monitoring port: TYPE-C, 24-PIN female socket.
• 3. Input monitoring port: Micro-USB, 5-PIN female socket.
• 4. Output monitoring port: TYPE-C, 24-PIN female socket.
• 5. PD communication switch.
• 6. Output monitoring port: USB-A, 5-PIN female.
• 7. Touch switch: BACK button.
• 8. Multi-function switches: left button, middle button, right button.
• 9. PC connection port: Micro-USB, 5-PIN female socket.

Visual representation of the device structure:

[Image: Front view of the FNB58 tester showing USB-A input port (1), screen, and FNB58 logo (6). Bottom view showing Type-C output port (4), USB-A output port (6), touch switch (7), multi-function switches (8), and PC connection port (9). Top view showing Type-C input port (2), Micro-USB input port (3), and PD communication switch (5).]

6. Technical Index

Accuracy: ±(a%(‰)reading + number of words)

7. Main Page

Controls:

• Left and right buttons: switch pages/menus.
• Middle button: confirm.
• BACK button: cancel/return.
• Long press the BACK button to turn off the screen backlight; all pages are valid.

7.0.1 Concise Page

[Image: Concise page display showing VBUS, IBUS, PBUS, and TEMP values.]

Features:

• Only the three key parameters of voltage, current, and power are displayed, indicating the direction of current.
• Middle-click to toggle between Run and Pause.
• Temperature display (onboard temperature).

7.0.2 Monitoring Page

[Image: Monitoring page display showing detailed statistics like NIRGStatistics, CAP, NRG, Offline status, and trigger information.]

Press the middle button to enter the recallable function menu:

• Previous group
• Next group
• Start recording offline
• Clear offline records
• Start the time limit

7.0.3 Waveform Page

[Image: Waveform page displaying voltage and current curves over time.]

Controls:

• Long press the left button: time base minus.
• Long press the right button: time base plus.
• Click the middle button: start/pause drawing the curve.
• Long press the middle button: switch modes.

7.0.4 Application Page

[Image: Application selection screen showing options for Fast Charge, Statistics, Toolbox, and Settings.]

Application options:

• Fast Charge
• Statistics
• Toolbox
• Settings

System uptime: 99 Days - 23:59:59

8. Fast Charge

In the application interface, press the middle button to enter the fast charging application. A warning will pop up. Please read carefully and press the middle button to confirm the entry.

After entering, use the left and right keys to select options:

1. Automatic detection
2. PD Trigger
3. QC2.0
4. QC3.0
5. FCP
6. SCP
7. AFC
8. VOOC/WARP
9. SVOOC 1.0
10. SVOOC 2.0

8.0.1 Automatic Detection

In the fast charging interface, select automatic detection and press the middle button to enter.

• In this mode, the meter tries to trigger various protocols in turn. Display the test results on the screen: Red indicates not supported, Green indicates support. During testing, such as measuring PD chargers, it is normal to restart and continue testing.
• During the test, it is forbidden to connect to any equipment at the back end.
• It does not respond to any key operation during the test. If you want to exit during the test, please unplug the meter directly.
• After the test is completed, click the middle button to start the test again; click the BACK button to return to the previous page.

[Image: Detection V1.0 screen showing supported protocols like PD, APPLE, BC1.2, SUMSUNG AFC, HUAWEI FCP, SCP, QC2.0, QC3.0, VOOC/DASH/WARP, SuperVOOC.]

8.0.2 PD Trigger

In the fast charge interface, select PD trigger and press the middle button to enter.

• Switch the PD communication switch to ON to enter the PD protocol trigger mode. After exiting the PD trigger, please switch the PD communication switch to OFF.
• Press the middle button to select the adjustment window (the window border turns green).
• Take the picture as an example: the picture shows a charger sending a message, a total of 7 files. The 1st, 2nd, 3rd, 4th, and 5th gears are fixed voltage gears. Currently, the adjustable window is gear adjustment. You can select the gear by the left and right keys. For example, when in the voltage/current window, the voltage/current can be adjusted.
• Click BACK to pop up the exit/return menu selection window.

[Image: PD Trigger screen showing voltage, current, and power values, with selectable voltage gears.]

8.0.3 QC 2.0 Trigger

In the fast charge interface, select QC2.0 and press the middle button to enter.

• In QC2.0 trigger mode, use the left and right keys to select the trigger voltage, click the middle button to confirm the trigger voltage, and click BACK to pop up the exit/return menu selection window.

[Image: Qualcomm QC2.0 screen showing voltage options 5V, 9V, 12V, 20V.]

8.0.4 QC 3.0 Trigger

In the fast charge interface, select QC3.0 and press the middle button to enter.

• In QC3.0 trigger mode, use the left and right keys to decrease/increase the trigger voltage. Click BACK to pop up the exit/return menu single selection window.
• Press the left/right button to quickly decrease/increase the voltage.

[Image: Qualcomm QC3.0 screen showing voltage adjustment options.]

8.0.5 FCP Trigger

The operation method is the same as QC2.0 trigger.

8.0.6 SCP Trigger

The operation mode is the same as QC3.0 trigger.

8.0.7 AFC Trigger

The operation method is the same as QC2.0 trigger.

8.0.8 VOOC/WARP Trigger

The operation mode is the same as QC3.0 trigger.

8.0.9 SVOOC 1.0/SVOOC 2.0 Trigger

SuperVOOC requires a load greater than 500mA on the back end to deceive. And SuperVOOC only has a voltage of 10.5V. Therefore, you can only press BACK to return/exit the page, and there is no other operation.

9. Energy Statistics

In the application interface, select energy statistics and press the middle button to enter the statistics page. The function options are as follows. Use the left and right buttons to select. Press the middle button to enter each function option:

• Energy Statistics (Statistics List)
• Battery capacity calculation (calculate battery capacity)
• Offline record (view offline record curve)

9.0.1 Energy Statistics

[Image: List of statistics showing No., CAP/Ah, NRG/Wh, and Time.]

• From left to right are the group number, capacity, energy. The selected group is displayed in green, and time is the statistical time.
• Press the left and right keys to switch the group number. Press the middle key to choose to set it as "record Record/Clear".

9.0.2 Battery Capacity Calculation

[Image: Barrry CAP Calculation screen showing Group, Time, CAP, NRG, BATT Vol, Conv Eff, and Results.]

1. Set the battery voltage and energy conversion efficiency to calculate the battery capacity. Click the middle button to move the green color among the three items: group number, battery voltage, and conversion efficiency. Which item is green, and the value of which item can be changed by clicking the left/right button. Each item is explained below.
2. The group number is the statistical group selected for calculation. The instrument can be selected from 1-10 groups. The time, capacity, and energy are counted and displayed in order from top to bottom on the right side of the selected group number.
3. The battery voltage, the default is 3.7V, this parameter can be selected from 3.0-5.0V. Please refer to the relevant information for the actual value.
4. Conversion efficiency is energy conversion efficiency, the default is 90%. This parameter can be selected from 80%-100%. The actual value should be set according to the actual conversion efficiency of the battery.
5. The red letter is the calculation result. If you want to get the result in mAh, please convert it by x1000.

9.0.3 Offline Recording

After pressing the middle button to enter, press the middle button again to select "Start Offline Recording/Clear Offline Recording".

10. Toolbox

In the application interface, select the toolbox and press the middle button to enter the toolbox page. The function options are as follows. Select the left and right buttons and press the middle button to enter each function option:

• Cable resistance detection
• PD listener
• PD converter
• USB-C electronic label (e-marker detection)
• Read DASH cable
• Simulated DASH
• Analog APPLE 2.4A

10.0.1 Cable Resistance Detection

The FNB58 uses the differential pressure method to measure the internal resistance of the cable, which needs to be used with a constant current load.

Click the middle button: use the current voltage and current value as the reference value.

[Image: Cable Resistance Detection screen showing voltage, current, and reference values.]

Measurement steps:

1. Connection method: charger + FNB58 + constant current load (the current is adjusted to about 0.5-1A), press the middle button to record the reference value.
2. Connection method: charger + cable + FNB58 + constant current load (the current should be adjusted to about 0.5-1A, which should be similar to the current when the reference value was recorded), the system automatically calculates the internal resistance of the cable.

10.0.2 PD Listener

When using PD listener, turn the PD communication switch to ON. Use a power supply not greater than 16V (usually 5V) and a Micro-USB cable to connect the PC online port for external power.

Use the PD listener function: Connect 2 C-C cables, connect the charger and PD electrical appliances from the Type-C IN interface and Type-C OUT interface respectively. When the connection is normal and the PD protocol is triggered by the PD consumer, the page is represented as shown below.

[Image: PDListener screen showing voltage, current, power, and PD protocol details.]

When the PD charger cannot be powered, because the C-C cable has only one-sided CC, and the 2 CCs are not connected, so you can flip one of the C-C cable connectors to solve the problem.

The figure below shows a 65W PD charging head. The current PD appliance chooses the second gear, triggers the target voltage 9V, and maximum current 3A.

[Image: PDListener screen showing detailed protocol data.]

Note:

1. Open the settings menu -> trigger -> block PDCRC, you can turn off the monitoring of CRC.
2. For the meaning of various messages in the PD protocol, please refer to the relevant information.

10.0.3 PD Converter

This function is used for QC2.0 chargers to supply power to PD appliances.

• Before use, switch the PD communication switch to ON. Then enter the PD protocol conversion mode. After entering, plug in PD appliances, and you can perform PD fast charge.
• In this mode, click the middle button and use the left and right buttons to change the maximum power of packets sent by the PD. When changing power, be careful not to exceed the charger power to avoid unnecessary damage. After changing the power, you must click the middle button to confirm.
• Set 5V when no device is connected to avoid high-voltage damage to mobile phones that do not support high-voltage when plugged in.
• QC2.0 only B type charger supports 20V trigger. So when the PD appliance requests 20V voltage, the tester will detect whether the charger successfully triggers QC2.0-20V. If it does not reach 20V, the tester will cancel the 20V gear and resend the Caps broadcast.

10.0.4 USB-C-E-Marker

E-Marker cable refers to a cable with an E-Marker chip in the Type-C interface. If the interface does not contain an E-Marker chip, the packets from the PD charging head cannot exceed 3A current. And only use the E-Marker cable to trigger the PD protocol, the current can exceed 3A.

When using the USB-C electronic label, except that the Type-C interface cannot be used for power supply, PC port, USB-A, Micro-USB interface can all be used for power supply. The PD communication switch needs to be turned ON.

[Image: USB-C E-Marker screen showing Vender ID, Type, Speed, Length, Max Vol, Cur, Hardware, VDM Header, ID Header, Cert, Stat, Product, Cable 1, Cable 2, Cable 3.]

The two pictures above show the parsed data. The second picture is the original data. Users can consult the relevant information of the PD agreement by themselves.

10.0.5 Read DASH Cable

Enter this function, plug in the DASH cable, you can read the chip-related data, as shown below:

[Image: Read DASH Cable screen showing ROM data and ADDR information.]

Dash cable found! Verified!

10.0.6 Soft DASH Cable

This function is used without a DASH cable.

• The USB-A head of the DASH cable will have one more data pin than the ordinary USB-A data cable. And one more chip, used to identify and start VOOC/WARP flash charge.
• If the phone normally needs to use a USB-A->Type-C DASH cable, but there is no such thread in hand, only FNB48 tester and a C-C cable, but want to trigger VOOC/WARP flash charge, at this time, the function of simulating DASH cable can be started, and use the C-C cable to connect to the phone. You can perform VOOC/WARP flash charging.

Note: Since this method does not use the original data cable for charging, the charging power is largely affected by the C-C line. If the impedance of the C-C line is high, then the charging power will be reduced a lot.

10.0.7 Soft APPLE 2.4A Accelerator

When the Apple device detects that the charging head D+ and D- are 2.7V, to charge at 5V-2.4A, this function sets D+ and D- to 2.7V.

11. Settings

In the application interface, select the toolbox and press the middle button to enter the toolbox page. The function options are as follows. Select the left and right buttons and press the middle button to enter each function option.

[Image: Settings screen showing options for Display brightness, Standby brightness, Standby time, Refresh rate, Temperature symbol, Language, Gravity direction recognition, Boot page, and Key Tone.]

Navigation:

• General
• Record
• Trigger
• System
• About

11.0.1 General

Left and right keys to select and press the middle key to enter various function options.

• Display brightness: Set the screen brightness, the adjustable range is 1-100.
• Standby brightness: Set the standby screen brightness, adjustable range 0-100 level. When set to 0, enter the standby state and turn off the screen directly.
• Standby time: Set the standby time. The last time you operate the button to start timing, reach the standby time, enter the standby state.
• Refresh rate: select slow-medium-fast.
• Temperature symbol: The onboard temperature can be displayed as °C/°F.
• Language: Currently only Chinese/English is supported. Due to character size limitations, English will be displayed in the Chinese system, which is a normal phenomenon.
• Gravity direction recognition: Turn on to automatically rotate the screen.
• Boot page: Turn on/off the boot page.
• Key Tone: Turn on/off the key tone.

11.0.2 Record

Left and right keys to select and press the middle key to enter various function options.

• Curve recording time: Set the recording time of the voltage and current curve, maximum 9 hours. Set to no time record. Every time you change the configuration, the curve will be cleared to 0.
• Statistical current threshold: When the current ≥ the threshold, to carry out statistics on capacity, energy, and time, setting range 0-7A.
• Energy statistics time: Set to no time, no time limit. Until the statistics reach the maximum value. After setting the time, when the statistical time reaches the set value, the statistics will automatically stop.
• Clear all records: Clear all recorded data, including offline curves, energy statistics.

11.0.3 Trigger

Left and right keys to select and press the middle button to enter various function options.

• Trigger time: Set the time to manually trigger the protocol.
• Monitor mask PD CRC: After opening, when PD is monitoring, CRC messages can be masked. Off by default.
• Boot simulation DASH: After it is turned on, turn on the analog DASH cable function at boot, which is turned off by default.
• Boot analog Apple 2.4A accelerator: After opening, turn on the Apple 2.4A acceleration function when booting, off by default.

11.0.4 System

Factory reset.

11.0.5 About

Check the version number and other related information.

12. Upgrade Firmware Instructions

1. Open the host computer software.
2. When the meter is off, press the middle button, use the data cable with data transmission to connect to the PC online port, and the computer displays the main page of the host computer software, which means the connection is successful.
3. Click System--Click Folder--Select Firmware.
4. Click the upgrade symbol to start the firmware upgrade. After the upgrade is completed, the meter will automatically restart and enter the main interface.

Production Information

Manufacturer: Shenzhen FNIRSI Technology Co., Ltd

Address: 8th Floor, West of Building C, Weihuada Industrial Park, Dalang Street, Longhua District, Shenzhen, Guangdong Province

Contact details: 0755-83242477

Website: www.fnirsi.cn