How to upgrade the firmware of the Uremote V2?
Uremote (Uni1 remote V2) have built in bootloader and a USB to UART bridge chip, CH340, so we can upgrade their firmware when new feature added or for fix issues.
Prepares
CH340 driver download:
https://github.com/JohnSpintend/Remote-receiver-FW/blob/main/receiver/CH341SER.ZIP
PC APP download:
https://github.com/JohnSpintend/Remote-receiver-FW/blob/main/Uremote/Uremote%20upgrader.exe
Firmware download:
https://github.com/JohnSpintend/Remote-receiver-FW/blob/main/Uremote/U_remote_v2_iap.binpak
Install driver
Install the CH340 driver, CH340 is the remote’s internal USB to UART bridge.
Run the ‘CH341SER.EXE’.
Click ‘安装’
Click ok.
Go to Device Manager, Win key + R, then type in ‘devmgmt.msc’ and click ‘ok’.
In the Device Manager:
check the Ports list, to find a COM port named with ‘CH340’. The number will be used in upgrade APP.
Upgrade FW
Power on the remote, connect it to the PC with USB cable, go into setting menu->Remote Config->Firmware Upgrade, stay there.
Run "Uremote upgrader.exe" on windows PC.
Choose the COM port, and choose the file with ‘.binpak’ extension.
Finished, click ok, release the power button, EXIT upgrade on the remote, then do next one. When all finished, click the Close COMM button on the RF Upgrader APP, then close the APP.
Concludes and explain
- The bootloader work within a 0.3-0.5 second time window to check if there is a upgrade packet send to it. So we need to give the receiver a re-power on. For Ubox V2, we can re-power on it, for a standard receiver, we can re-plugin its cable in to a VESC to get re-power on.
- If the RF Upgrader APP has some errors can't be quit or closed, use task manager (ctrl + shift + esc) to end it manually.
