Hi Everyone....
I need you help
Recently I have bought New Sony Xperia Z3+ (E6553).
It was running Android 6.0 Marshmallow When I bought that phone and everything was fine.
Today I Saw a notification to update Software to nogut 7.1 so I download it and continue to install byt going to Setting>about phone> software update.
After update phone was a problem " No Service available" I thought this is the problem because of Sim card so I changed that but the problem was same. The I observe that IMEI of my phone are changed. it is not same IMEI as mentioned on box and on tag placed near sim card.
So Please help me that How I can get rid from this problem
