![]() ![]() I ended up removing the whole processor just to confirm my thoughts, but it's the way it looked indeed. It's only needed to solder a wire to that test point, which is beside "C19" marking on the other side of the board, and just connect it to 3.3 V when needed. This means that in this case there's no need to unsolder that :ambivalence: tiny pin, with the risk involved in doing so. Well, what I found is that specifically in my board, pin 55 isn't connected to anything, but only to a test point that is the end of the circuit for that pin. We all know that in order to update the firmware we need to lift processor's pin 55, and connect it to 3.3 V so that the chip gets erased, and therefore accepts new firmware. I suppose not all boards will be the same as mine, and don't know if someone may have realized about this already, because honestly I haven't read the whole 47 pages on this topic haha, but here we go: It's an observation I made when I went on the process of updating my CarProg firmware. Hello everyone! Today I'm happy to be able to contribute with something that may be useful for many of you, after learning so much from all the magnificent knowledge that is on this site. ![]()
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