Chosen Solution

Hi everyone. I am Iphone SE user I changed my back housing. then I reassembled back. Now my signal quality is low. Places where the signal bar was full before, now there are 2 bars. And when there was 2-3 bars no it shows no signal… And about Navigation its not like live. When im moving with the car Navigation refreshes itself like in every 2 minutes.

Would need some further details, original parts and housing or all aftermarket ? Some replacement parts might not be exactly top quality and supply below standard performance. If everything was original, unless one is used to parts replacements might make some mistake and/or overlook smaller details.

Well i changed the bottom part of the phone. Took the old(original) charching part from my old housing and everything went back to normal…