network problem

[rajesh29744]

after update the xperia t is not serching any 3g network and working fine with 2g

[Ashroft98]

Try this

Go to Settings > More.. > Mobile Networks > Network Mode then choose WCDMA(Preferred)/GSM

[rajesh29744]

i have tried it but edge network is searching

[Uliwooly]

Three probably issues

1. an old or faulty SIM card

2. poor network coverage

3. an intrusive app that create connectivity issues, apps such as taskillers, antivirus, etc 

[rajesh29744]

i had cleanmaster app wihch cool down the device : the phone gets warm on 3g network before update

[Uliwooly]

Is it working now?