Failure to switch to 3G if signal weak

[Sunking1011]

I've been testing this today because for some portions of my commute I have zero signal. I took my iPhone along with a PAYG SIM on the same network. In the areas where I had zero signal on my XZ the iPhone was showing strong 3G reception. My XZ never, ever shows a 3G connection even though the settings are saying that the phone will swap between 4G/3G/2G depending on signal strength. Does anyone else have this problem, and is it a software issue?

[Klmk]

If the phone is connected on 4G i have no problems, when it switch to 3G or 2G a  few minutes later no reseption on the phone.

[Sunking1011]

My phone just never auto-switches. It stays on 4G or goes to H, I have never seen a 3G signal unless I switch to it manually.

[Christofer]

@Klmk Would it be possible for you to test with another SIM card, if you haven't already done so? This would help in finding out if this is related to your device.

@Sunking101 I've sent you a PM.

[Klmk]

I al ready did,

i have alsow sended a email.

I have to send the phone back for chekup

[Lord_viridis]

@Sunking101 H is 3G

[Sunking1011]

@viridis

I can have no signal whatsoever. My XZ will show 4G but with zero bars and when I manuly switch to 3G I get a strong signal. I have occasionally seen H.

[Christofer]

@Klmk Based on what you have described and what you have tried I agree, you should get your device examined by an authorised service center. You can contact your Local support team for more information on how you can proceed with this if need be.