Chosen Solution
My phone was working perfectly except that the battery life was bad. I had replaced the battery before and figured what could go wrong by doing it again. I followed the ifixit steps and used ifixit parts. I had some minor trouble getting the old battery out but I thought everything went smooth. I turned on the phone and everything seemed fine. After a bit, I lost cell service. My phone displayed “Searching” and if it wasn’t showing that it showed “No Service”. Everything else on the phone worked fine. I attempting a reset by holding the power and home buttons until the apple logo appeared. This got the signal back, but only for a bit, then it went back to “Searching” I then tried doing a reset of the cellular network. This also helped for a bit, but ultimately the phone went back to “Searching” I then tried taking out the SIM card, blowing in the slot, taping down the SIM card but none of these methods provided better results. I opened up the phone again to see if there was any damage I might had done near the sim card on the logic board, but the phone looked fine…I closed it back up and got service again only to lose it after a few minutes. Unfortunately, my phone seems to be getting worse after the second opening. My phone now had turned off randomly (even just while sitting on a desk untouched) and then once I touch it to attempt to use it, the apple logo appears and it boots back up. Additionally, the WiFi won’t be used when I initially use the phone. Only after a few seconds does it come back on and get signal. This isn’t every time, rather more sporadic for both situations. I have no idea what I might have done or did do. Besides these random on off and WiFi patches, the only thing that is wrong with the phone is the cell signal. Please help!!! Edit: My phone now will barely stay on, keeps resetting even when just sitting on a desk, it will reset over and over again, each time after a few minutes. This all while still having the problems above. Please help before my phone becomes a brick! Edit 2: Followed the steps that were provided below but still have the “Searching” problem. Unsure if the resetting problem was fixed from this but so far so good in that regard.
Yikes! Could be several things. First thing to check for is damage around the battery connector. We sometimes refer to this as “fingernail damage”, but it essentially means any damage caused to the small components around the battery connector when you pry the original battery cable off of the connector. These components are very small and easy to miss if you’re not very carefully looking. Check there to see if any appeared to be ripped off. Also, take a look at this area at the top of the iPhone 6:
In the area I have circled, do you see the foam adhesive sticker still intact or do you clearly see the gold contact that the sticker would normally be covering? If you see the gold contact, use a piece of kapton tape or electrical tape to cover the gold contact. An exposed gold contact can ground to the front camera retaining bracket causing problems with WiFi, cellular signal, and Bluetooth. Also check to make sure that the antenna located next to the battery connector is properly seated and not damaged. I supposed it could have been lifted accidentally when you changed the battery. Finally, we can’t rule out that the battery you used to replace it with wasn’t defective. Try a different battery or the original battery that you were using. Hopefully this helps.
I have the same problem with my iPhone X, don’t know what to do, and difference is I didn’t change any thing in phone or I didn’t try to open inside , it just started to happen
