원본 게시물 작성자: Hermann Ruckerbauer

텍스트:

in my case the sim card reader had broken Ground solder joints. The signal solder joints looked good, but on the GND joints there was clearly a gap. I resoldered it, and on the first boot it worked .. lets see how long..

but you need to be well equiped with soldering equipment to do this job.

Hermann

현황:

open