2g/3g Signal Problem, After Screen Replacement

[emailo]

Hello,

I have a problem after screen replacement, normal signal strength in my home was about ~-63dBm 25ASU (5/5), now its -99dBM 7ASU(2/5). On markets and other big closed buildings I have no signal. (normally i have full 2G signal) I buy new antena cabel and nothing was change. I check with two diffrent sim card - this same. Enyone know what i should check and how to solve this problem?

There is no problem with wifi and bluetooth signal.

 

[Acid]

Are you sure you plugged antenna connector into motherboard correctly? This is common issue when users didn't fully connect antenna.

Wysłano z MI Note

 

[emailo]

I'm pretty sure, I hear a little click when i plug it and there is no signal without it.