iPhone 4S wifi greyed out/ no signal after button replacement
My iPhone had a broken Power button, which I replaced.
But after I opened the iPhone and fixed the button, the iPhone shows most of the time a greyed out wifi and it keeps showing "Searching" and it does not recognize the SIM card.
Now I replaced the wifi antenna but this didn't fix it.
The problem must be on the logicboard.
How can I try to fix it (reflow etc?)
Which part of the logicboard is faulty?
Thanks in advance for your help.
Is this a good question?