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Asaktv

hi.my phone is not receiving any network signal and i sure that my SIM (MTN Irancell) card is working properly because Insert my SIM card in another phone.Mobile antenna comes with an on and off again but after a few minutes it goes., But the other operator's SIM in Mobile, is Antenna.

Uliwooly

Do you have an antivirus or taskiller? Do you have the correct APN settings? How old is your SIM card?

Asaktv

yes i have antivirus(ESET)..my SIM..i think is 3years.. i don't have APN on my phone(In other words, field is empty)!!!

Uliwooly

1st remove the antivirus > restart your phone and check again

if that doesn't work then

2nd get a brand new SIM card

Asaktv

with remove antivirus,the antenna is not properly(The Clear Mobile Antivirus is also not true)...it's one bug for xperia l,my friend have this problem too

Uliwooly

Try this

repair your phone with SUS or PCC > do not install any apps > test your phone also if your SIM card its older than a year get a brand new SIM card and check again

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

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