Originally Posted by boomboomer
'Bought as' and genuinely factory unlocked are two different things. If the phone is an unbranded handset bought as unlocked then you have a warranty claim, my unlocked phone went to 4..3 without issue.
You originally said "losing their unlock" which sounded like the more common case of handsets sold as unlocked, but only by patches which no longer work.
well the phone was bought out of the US as a factory unlocked phone. and the client ran some update via Kias. and after it booted up it would no longer take his net10 sim card. so i flashed it back to the UK unbranded 4.2.1 OTA and i am still getting the same msg asking for a unlock code.
when i run galaxysim is states that the phone is completely unlocked. and if i open the service mode menu to try and unlock that way the last menu is empty.
i have herd of the S3 getting this new region lock this but im not sure if that is what it is or if something is just really screwy. i have tried many diffrent version of the OTA. 4.0.4, 4.1, 4.2.1, 4.3.
if i go back to a update before july 2013 i run into the issue with the EFS folder so now i have the july 2013 UK BTU 4.2.1 OTA on the device. and im just not sure what to do anymore minus tell the client that he might have to buy another unlock code.