I don’t believe I had to, but it was optional. You have to hold a jumper between some pins while the bot booted to put it into the Qualcomm debug mode thing. You used to have to solder a UART chip to the board but not anymore since the discovery of the Qualcomm debug mode.
I can vouch for valetudo, the install process is surprisingly not as hard as it looks (depending on robot) and it has been working flawless for me.
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I don’t believe I had to, but it was optional. You have to hold a jumper between some pins while the bot booted to put it into the Qualcomm debug mode thing. You used to have to solder a UART chip to the board but not anymore since the discovery of the Qualcomm debug mode.