[Q] UICC SIM unlock and flashing Custom ROMS - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

Guys,
sprint just unlocked my phone for international use. I want to flash now a custom ROM . Will i loose the unlock if i flash a ROM or is it a permanent unlock?
Thanks

Hello,
No- you will not lose the unlock. I have flashed several ROM's since my international unlock from Sprint and I am still unlocked.

Yes that's what it is. Thanks man
Sent from my SPH-L720T using Tapatalk

Related

[Q] Flashing and simlock

Hi,
I am getting a Surround which was on AT&T with a simlock, but now it has been unlocked using a code. Now if I flash a rom onto this device, will it get locked again? If yes do you know how i can unlock it again?
thanks

does custom recovery/rom affect ability to unlock by code at later time?

hi all!!!
i have n910f on contract wich is locked to wodafone uk, its expensive to get it unlocked now as it cost 70pounds in uk, but i will get unlocking code from my carrier i september...
my question is does flashing custom recovery and custom rom based on orginal will affect ability to get it unlocked later?
i would like to flash cwm, custom rom and root it but im afraid that if i do so i wont be able to get sim lock off...
does anybody know ansfear if it will affect sim lock in any way?
regards
No, rooting won't affect the ability to unlock

[Q] AT&T N4 with simlock and custom rom?

Hi guys,
i've got an oportunity to buy a SGSN4. It comes from USA with the AT&T simlock. Is it possible to install a custom rom on this (i dont care about the warranty) with european language? Is it possible also to unlock this phone to use it in every network?
Waiting for your reply, thanks a lot
The att Note 4 has a locked bootloader. Only a limited root is available currently. It resets every reboot and supposedly disappears randomly between reboots. A permanent root is still trying to be obtained, but it isn't clear as to if it will ever be obtained or not.
No root means that you can't install ANY roms or kernels. There aren't even any for the ATT Note 4 because we don't have permanent root yet.
You CAN unlock the phone though. I don't know how personally though, but it can be done. Go to the ATT Note 4 forums and read through there.
Sent from my SAMSUNG-SM-N910A using Tapatalk

Verizon note 4 unlocked on Cricket (AT&T) network custom rom

I'm new here but have been following xda for years. I'm not new to rooting or flashing custom roms but after a few days of searching I can't find an answer to the following question.
I have and unlocked Verizon Note 4 n910v running Android 4.4.4 on the Cricket (AT&T) network. If I'm going to install a custom rom, do I need to find a rom for Verizon or for AT&T? Also can anyone clear up the rumor about a locked bootloader on this device? Any help would be awesome!
If you have already unlocked the bootloader on the 910V, I'm not too sure what rumor you are referencing regarding a locked bootloader ::
As far as roms go, it's a Verizon device so you need Verizon roms and firmware.
Sent from my SM-N910V using XDA-Developers mobile app
10bahelmer said:
I'm new here but have been following xda for years. I'm not new to rooting or flashing custom roms but after a few days of searching I can't find an answer to the following question.
I have and unlocked Verizon Note 4 n910v running Android 4.4.4 on the Cricket (AT&T) network. If I'm going to install a custom rom, do I need to find a rom for Verizon or for AT&T? Also can anyone clear up the rumor about a locked bootloader on this device? Any help would be awesome!
Click to expand...
Click to collapse
For ROMs, you must install verizon ROMs because the phone uses verizon-customized hardware.
It is no rumor that this device comes with a locked bootloader. However, thanks to the talented devs here at XDA, there is now an official way to unlock the bootloader; but you have to update to Lollipop 5.1.1 and BPA1 baseband.
I'm using a T-mobile sim in my verizon note 4 without unlocking the bootloader on lollipop and BPA1, so you shouldn't worry about your sim not working after updating. Have fun!
you have a misunderstanding of unlocked. what you are referencing is that you are using the factory unlocked gsm portion of the modem in the verizon model phone. you are NOT bootloader unlocked as you are still on 4.4! if you want to truly unlock it (as in the bootloader) then you will need to upgrade to 5.1.1 (BPA1) via odin. There are several tutorials on how to achieve this, and unlocking (including one that i wrote on the main thread).
to answer your question about using a verizon rom or a t-mobile rom, you can try any snapdragon rom that you would like, but there is NO GUARANTEE that they will work as each developer compiles with or without certain components. what ever you do, do NOT try to flash other carrier (at&t, t-mobile, sprint, etc.) firmware. BIG NO NO! although you claim to have experience with rooting and flashing roms, i would advise you to ALWAYS stick with the carrier variation of whatever device you are working with until you get a better understanding of the different components to a phone i.e. bootloader, modem, rom, etc. xda-university has a nice explanation of these things. so go read up on these things. if you need help, feel free to ask.
Thank you for everyone's advice. Upgrade to lollipop via Odin and bpa1. Got it. As far as custom rom goes, use a Verizon carrier custom rom.

Will my note 3 be sim locked again?

I have a note 3 with stock lollipop rom model n900w8 which is the canadian note 3 version. I just want to know if it will be sim locked again if I installed a custom rom like magma or darklord?
PS. I don't know if it was sim locked before, I just got it sim unlocked already.
Additional question: can I just go back to stock kitkat from stock lollipop without rooting?
How was it sim unlocked? With an unlock code, the phone should be permanently unlocked regardless of flashing a custom ROM or upgrading bootloaders and modems.
audit13 said:
How was it sim unlocked? With an unlock code, the phone should be permanently unlocked regardless of flashing a custom ROM or upgrading bootloaders and modems.
Click to expand...
Click to collapse
I don't know how it was unlocked. I just got it unlockef already.
poqi_ako said:
I don't know how it was unlocked. I just got it unlockef already.
Click to expand...
Click to collapse
Most likely it will never re-lock itself
Every phone that I got from a carrier and subsequently unlocked via code, including the n900w8, or a free method (i.e. Samsung note 2, s3, s4) has never relocked after flashing a stock or custom ROM.

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