LTE (4G) problem

[zoran81]

Hi there,

After upgrading to Lollipop I experienced some problems with 4G.
When I'm switching from WiFi network to my carriers data network, and when the phone is set to prefer 4G the phone it often can't find data network, but when the phone is set to prefer 3G it find network as soon as it lose WiFi and if I than change to prefer 4G it imediatelly change from 3G to 4G.

I'm on Croatians T-Mobile network.
Sorry for my bad english.

[Uliwooly]

Get a brand new MICRO SIM Card and report back.

[zoran81]

Well I'll try.
Since this is companys phone I must check this replacement with IT department.

Meanwhile, if someone have any other suggestion please share.

[Uliwooly]

You could repair the phone with PCC and check again

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[zoran81]

Well, last night I do the factory reset, but problem is not solved.
Sometimes phone finds 4G really quick, but when it can't find 4G it don't find 3G or H+, and that bothers me a lot.

[Uliwooly]

Get a brand new MICRO SIM card and double check with your carrier network for any 4G LTE coverage issues.

[zoran81]

I will

[Uliwooly]

Keep us updated

@zoran81

[zoran81]

Soooo..I've changed SIMcard..it look ok..for now

[zoran81]

Well..actually changing SIM wasn't solve the problem..after all..

[Uliwooly]

@zoran81

is it working or not ?