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3 Firmware and Bootloader
3.1 Update Firmware with USB drive
copy lks7688.img file to the root directory of a FAT32 USB Drive
Attach the USB drive to the HOST port of the board with an OTG cable.
Hold the Wi-Fi button
Press the MPU Reset button once while holding the Wi-Fi button
Keep holding Wi-Fi button about 5 seconds.
Release Wi-Fi button until the Wi-Fi orange LED becomes OFF.
Do not press the Wi-Fi button for more than 20 seconds or it will upgrade the
bootloader. Wait while the Wi-Fi LED blinks fast. This takes about 3
minutes.
The device will automatically reboot after firmware update completed.
-9-
Document Name
AI7688H
Reference Manual
Version
V 2.0
Date
2019/08/08
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