If my phone was region locked then unlocked then flashed a cross region firmware and flashed back to the original one, will region lock come back?
Also, can anyone answer where in the system does this kind of lock reside?
no
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Will upgrading to the new V21Y fw require me to re-unlock the phone because of the baseband update? I have the unlock code for the phone but I'm about to take a business trip to another country where I want to use another sim. Im afraid that the V21Y firmware update would sim lock the phone again and require a new unlock code.
No it will not.
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Thanks, gonna try it this weekend
The unlock is stored in a special partition of NVRAM which is never touched by a firmware update. Once unlocked the phone remains unlocked unless your carrier relocks it by OTA, which they never do.
Does Flashing with a Stock Rom leave the phone locked to the region it was purchased in or replace the region lock to the country of the firmware that was flashed. If that makes sense. Thanks for your help.
So in other words does changing the CSC alter the region lock status say you unlock the region lock with one CSC then change firmware with another do you then have to region unlock for that region
..I was already told by a friend here that if I again flash a stock rom in my sm-900p phone which I got unlocked for international GSM use (using from India) , it won't get locked again ...with all due respect to the friend who affirmed me already that it won't get locked ,can anyone else confirm that to me please ? I am not able to dare to flash the stock rom....since two days I am just waiting to take that step..presently I am using darkwolf rom but I want to flash with stock rom so that bootloader and modem gets updated and then on that version,I will flash this rom again ..that's my plan
If you mean will lock your bootloader, yes .
It will not lock your network again, if you already had a sim unlock/network unlock, it will remain as that even if you reflash, lock status is in a different memory not in the one overwritten by your ROM.
If you are talking about the bootloader, none of my motorola , samsung or htc devices relockes the bootloader once you have unlocked it, you have to manually relock it if you want to do that by any reason.
I bought my phone from a different country and it was country locked. I got it unlocked but I am curious If I flash the other second country's firmware, will my phone again get country locked. Or is there any chance by which the phone can be country locked again?
Maybe a stupid question. Is it possible to put another regions rom on the 908U? I was thinking about flashing the international rom to be able to unlock the bootloader, just checking if it's been tried before.
Not possible