Have one BMW ICOM Next and when I pluged OBD to socket, SYSTEM led started flashing red.
I tried reflashing Firmware and cofigure user. Settings but nothing changed still led flashing red.
Reason: Probably because fan test failed.
So, How will I fix this problem ? Here BMW ICOM Next PCB
The problem is that the problem with the processor and the algorithm for writing errors in the firmware from the old icom.
You can remove the error by connecting a three-wire fan or a pulse generator with a frequency of 400 Hz.
For normal operation it is necessary to set cool the CPU
I will go with that fan. I need to buy a small fan with three wires and solder it. On top of the processor i will put some thermal paste with heatsink also.
Question: You know which of this 4 hole is for: Ground (GND), Live wire (VCC 5V) and Third Wire for fan control ? There are 4 holes and 3 of them have trails that goes to the board.
Connection of a fan or generator to 400Hz
Thank you just is working system light red again
thank you very much !!!