Chosen Solution
my iphone6’s screen was cracked and bent as well, so i bent the phone back to normal and replace the screen, but after i have done everything, i find that the phone can not receive signal, it just say no signal. i am sure the sim card is working ( i tried it on other phone). i think i might have damaged the phone when i tried to bent it back. so how can i know which part need to be replaced? sim card reader? antenna ?
Antenna may be your problem. I believe the phone reception antenna is the one on the lower end of the logic board, it is black and small with a silver/gold L shaped plug on the end that snaps down onto a circular terminal. http://www.insidemylaptop.com/images/Ace… Looks kind of like this. Before you do some work on the phone. Try to… 1: Turn it off 2: Take the Simcard out 3: Turn it on ( 5-10 mins ) 4: Hold home button and power button until the device goes black and reboots to the springboard 5: Turn off 6: Reinsert Simcard 7: Check if you have reception. Also, try to dial 3001#12345# and check top left what number is shown. -51 = Full signal -105 = No signal at all. Anything in between those numbers is normal. The closer to -51 the better.
So which part was the solution?
