I have been repairing several phones and this is one of the most craziest fix to try (I thought). I already tried all resets and bla bla bla. Wi-Fi stayed grayed out and BT was not working.
I did take the motherboard out but didn't secure or cover it with any tape. Tried above method using hot air blower in some random temperature (I guess it was about 150-300'c), for ~3 minutes...and it worked! Wi-Fi and BT are back in business. Amazing :)
Great instructions. Many thanks!
Однажды Они, Вы смогут просмотреть график вашего рейтинга, накопленного за всё время.
Репутация еще не заработана.