Poor and fluctuating signal with Xperia XA2

[DND97]

Hello there, I have my XA2 with poor and fluctuating signal, need some help with this. I tried making some changes from LTE to H+ and that, but doesn't work, tried resetting the internet settings, manually setting the data connection to one of the availables(LTE, H, 2G).I used to have very good signal and coverage with my last phone, not so long ago and was using the same Sim card.

 I appreciate any help from you, 

Thanks in advance. 

[Uliwooly]

@DND97 

I'm sorry to hear about the issue, but its usually a network coverage, could you go to 

settings > about phone > status > signal strength > what do you see?

[DND97]

The signal is weak "-110dBm" that's what it says, the thing is I used the same Sim card and in the same area with my previous phone and had no problems, in addition even when I'm in the big cities where u should have no problem with network coverage I still have issues with it.