Iphone 6 signal problem

[iMore Question]

I have iphone 6 and i have problems with gsm signal.
So I can not connect to the network, celullar.
I reset all settings and this did not help.
So I tried to repair it myself and dismantled the display. Press everything. The signal returned for one hour. What part is damanged? or how looks celullar antenna

 

[Just_Me_D]

I'm not sure, but since you stated that you dismantled the display, pressed everything, and then the cell signal returned for an hour, it's possible that you could have either a loose connection of some sort or a short. Also, how long have you had the signal problem? Have you contacted your wireless carrier to see if they can troubleshoot from their end? You can also try resetting the network settings. What kind of case do you have on it? Does the signal improve when you removed the device from the case?