Weak Cellular after Battery Replacement
This is sort of a two part question because two different 4S's are behaving oddly after battery replacement.
The first 4s won't find service at all, wifi bluetooth everything else work fine. The only thing that was done to the handset was remove back cover, remove battery and ground clip, reinstall battery and ground clip.
The 2nd 4s seems OK except it is dropping cellular signal periodically and it was not before. Oddly when I opened it I did not see the ground clip on the battery terminal and thought that odd.
My question is how important is the ground clip on the terminal and how sensitive to oil on the skin are those 3 pieces? I did not have any alcohol at the time but can certainly open them up and clean the contacts carefully.
Thanks in advance.
Questa è una buona domanda?
23 
15 
26 
Thanks Josh, I imaged it was important too.
The 4s that has intermittent cellular connectivity issues had no ground clip when I opened it up (I have a spare from another dead handset that I could install). Oddly it had no issues prior to the battery swap.
My Hands were very clean not oily or dirty
Nothing else was removed, the antenna cable was not unseated and as a precaution I looked at it very closely before seating the new battery. I didn't' know how helpful cleaning the battery plate and ground clip and antenna connector with alcohol would be so I have not yet.
The other 4s that has No Service whatsoever after the battery swap I am convinced somehow the baseband chip was fried. I cannot complete a software restore now from iTunes, it hangs with the "iTunes cannot restore this iPhone error (1)" Has anyone experienced a short like that from a new battery installation? I have done several on different models of iPhone and have never had any difficulty.
da Greg Elsberry