EVControls TC-1 Teardown
Posted: Sun Oct 30, 2022 5:01 am
I bought a broken TC-1 to teardown and show whats going on inside.
The design is super weird - using high-side drivers to drive relays but not just driving 12v outputs with them directly. Also, everything is hand soldered and there were even solder balls running around inside!
They are using a Mikro 7inch smart display dev board: https://www.mikroe.com/mikromedia-7-stm32f7
They are using a balling F7 mcu
I connected my stlinkv3 and it locked through byte options RIPPP
The firmware is RDP so I'm looking into making a glitcher for it. If anyone has info on STM32F7 glitching to bypass RDP please let me know.
I have a friend with IDA pro so that could be interesting. If I can disassemble the code I will post it here.
Hopefully, this helps someone at least a little
The design is super weird - using high-side drivers to drive relays but not just driving 12v outputs with them directly. Also, everything is hand soldered and there were even solder balls running around inside!
They are using a Mikro 7inch smart display dev board: https://www.mikroe.com/mikromedia-7-stm32f7
They are using a balling F7 mcu
I connected my stlinkv3 and it locked through byte options RIPPP
The firmware is RDP so I'm looking into making a glitcher for it. If anyone has info on STM32F7 glitching to bypass RDP please let me know.
I have a friend with IDA pro so that could be interesting. If I can disassemble the code I will post it here.
Hopefully, this helps someone at least a little