BMW ICOM A2 emulator system red indicator flash

Before go deep into the topic today, let’s check the BMW ICOM ICOM A and ICOM B module indicator and meanings.

It is not different to see that if the Red LED indicator of either ICOM A or ICOM B emulator flashes, the Rheingold ISTA-D ISTA-P software will report error and fail to communicate with vehicle.
Problem& Symptom:
BMW ICOM A2+B+C diagnostic system A2 module red indicator blinking when connected to vehicle with LAN cable.
Solution:
2 solutions provided by experienced BMW ICOM diagnostic system experts:
DISCLAIMER: We are not responsible for the damage.
1)
1-rehot hot air gun this IC
2- Replace or change new one if necessary
3-The problem is the IC

2)
Fix the ICOM A2 from CnAutotool.com emulator firmware follow the PCB board displayed below:
The pulse generator to buy on auctions

white wire=the line to the WiFi antenna.
Others all marked in the PCB board