Booting into Allwinner FEL mode
Warning
Booting into FEL mode requires shorting out a resistor on the board. You can damage or kill your board if you're not careful!
Danger
Making mistakes while in FEL mode CAN break your board! Be careful!
Solder the unpopulated usb header J5.
Connect to to your computer
Connect the mainboard to your PC using a USB-A male to dupont female cable. The pinout of the dupont connectors is as follows:
| Pin NR | marking | Function | remarks |
|---|---|---|---|
| 1 | 5V | 5V | closest to the type-C connector |
| 2 | DP | DP | DP and DM are switched compared to standard usb pinout |
| 3 | DM | DM | |
| 4 | GND | GND |
Boot to FEL mode
Press the reset button while shorting R53 with tweezers. the board should boot into FEL mode and connect to your PC.
Installing driver
- Use Zadig to install the WinUSB driver.
- Check the USB ID of the device. It has to be
1F3AEFE8. - rename the unknown device to a name of your choice by enabling "Edit"
- Make sure the correct driver is selected:
WinUSB - Click the install button
