topic Re: Cannot use 3G/HSDPA network in some conditions in XPERIA archive

Cannot use 3G/HSDPA network in some conditions

Reach052 — Thu, 12 Mar 2015 08:00:51 GMT

Hi,

I have a Xperia Z3 Dual (L55u, Mainland China Ver) and I am now using Vodafone in Australia.

I have problem using 3G network in most non-4G areas, where the signal displays normally, but when I try to browse sites or use any app connecting to internet, it lags and display "cannot connect to internet".

This happens both on its original firmware (L55u_23.0.F.1.78_CN) or RU firmware (D6633_23.0.1.F.0.96_RU).

4G network works normally.

Does it help if I upgrade my firmware to 23.0.F.1.82? Or will there be a solution to use 3G network normally? Thanks!

Re: Cannot use 3G/HSDPA network in some conditions

Uliwooly — Thu, 12 Mar 2015 08:18:45 GMT

Do you have the corect APN settings?

Re: Cannot use 3G/HSDPA network in some conditions

Reach052 — Thu, 12 Mar 2015 08:46:54 GMT

Yes, I am pretty sure that I used right settings in APN. In fact, I am able to use 3G network occasionally, but not often. However, when I can't access to internet, the 3G signal is normal.

Re: Cannot use 3G/HSDPA network in some conditions

JakeSully — Thu, 12 Mar 2015 14:42:41 GMT

could be some APN issues, try going to settings --> More --> Network Settings and see if it fixes it, if issue remains then it could be a issue with Carrier in australia or problems with their towers causing your phone to fail on 3G usage.

Re: Cannot use 3G/HSDPA network in some conditions

Uliwooly — Thu, 12 Mar 2015 23:51:59 GMT

How old is the SIM card?

is it a NANO SIM card or did you trimmed a regular SIM card?

Was this phone locked to another carrier/network branded?

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