vendredi 13 février 2015

[Q] Sim card not recognized and missing pcb component topic






Ok. Since apparently I can't post links of any sort, this is going to get complicated. Sorry in advance. I have links and pictures I could send via Message, if someone would be kind enough to post them. I don't think spamming 10 random posts just to get permission to post links is a good idea...

So I was following Chales Wilkinson's guide to installing a sim card slot. I successfully connected the slot to the PCB, double-checked all the connections, made sure I had not created any accidental short circuits and tried several different sim cards, none of which were recognized. I even soldered the sim card directly to the PCB (without bothering with the slot, thinking it might have been broken), still nothing. I have CM 10.2.1 installed. It had no trouble with the built-in sim card and is otherwise running completely fine.
Searching for things I might have done wrong, I've found that there appears to be a component missing on my PCB. It's the thing that resides above the sd card slot, right next to the screw that fixes the PCB. Now my question is: can anyone tell me, what that was and whether it might be the reason behind the problems I'm having? And whether it can be replaced somehow without getting a new phone? I know that's not likely, but I want to be completely sure before starting all over again...

Sorry again for not being able to show this properly.






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