[Q] Will I lose my SIm unlock if i install custom rom ?? - Vibrant Q&A, Help & Troubleshooting

i have a samsung vibrant.. and im from Sri Lanka!! so obviously i need to unlock it.. but my concern is that after unlocking with code with stock rom (2.1 Eclair) , if i install Auxora or any custom rom, will i lose my unlock?? and alternately can i unlock AFTER installing a custom rom staight away ?? And what is the backup for nv_data som file all about?? please help as i am a newbie to android !!

No you will not lose your unlock. I however cannot verify if the new OTA(from official release) does this. The current posted ROMS will not.
I am not sure what you are asking about the nv_data file, please explain further.

So is it fine to unlock using the guide and THEN install custom roms?? ???.. but i read some forums that you need to backup the efs folder which contains the nv_data.bin file so that u can generate the unlock codes... please reply.. thank you!!

I have unlocked and installed ROM over ROM just fine. IF for some reason it does lock back there is an unlock tool in the "bible" thread stickied at the top. Takes all of 30 seconds to lock and unlock.

alright.. so Why BACKUP THE EFS FOLDER ???? confused~~!!

Related

[Q] How Unlock works?

I have a question..
It is my understanding that unlock code is stored in a file in Vibrant.
So, in the process of flashing custom ROMs and then reverting back to stock, i used the stock ROM that was uploaded in an XDA thread.
Does it mean i have overwritten my unlock code? Can't i no longer use the unlock code that T-Mobile sent me? I haven't tried it (waiting for the JI6 to arrive on my phone).

Xperia mini pro sk17 costum rom

If i have rooted & intalled cwm recovery i can install any costum rom?
My phone it is locked in vodafone and branded bootloader locked , dont want to unlock because of garanty for the moment it is new so the most of roms i have read the req it is boot loader unlock any chance to have some costum rom on my sk17 like cm7, flush etc.?
Sent from my SK17i using XDA App
some RoMs required unlock bootloader....
check here for more info:-
http://forum.xda-developers.com/forumdisplay.php?f=1242
i have read for a long time and try some roms who didint say req bootloader unlock but all stops on sonyericsson (bootloop) maybe it is here someone who try and work with a specific rom ...
Maybe they aren't saying that you need unlocked bootloader, but if "kernel" is mentioned, then you need that kernel and kernel flash need unlocked bootloader.
Practically every custom ROM needs it's own kernel, so I'm afraid you'll have to unlock your bootloader.
My manual said that only if defects were caused by custom software, I'd might have to pay for the reparation.
Yes i know but i come from Htc where it was easy (root and redy to install everyting) and now i`m stuck but i don`t give up my garanty for this it maybe later it will apear some roms only with root
tnx all

[Q] Sim unlock and custom roms

Hi,
I will be moving out of the country for a little while and was wondering if anyone could help me out with unlocking my vibrant. (see sig for current set up)
I have attempted using several market utilities but have had no luck, i havent yet called T-mobile because im fairly certain that the unlock code with custom roms installed wont work (correct me if im wrong this is just an assumption im making)
Does any one know of a way to sim unlock the vibrant while on custom roms?
Do i have to use a hex editor?
If i flash back to stock, use sim unlock provided by t-mobile, will the unlock persist after flashing a custom rom?
Thank you in advance to those who reply.
- Cheers
shreddintyres said:
Hi,
I will be moving out of the country for a little while and was wondering if anyone could help me out with unlocking my vibrant. (see sig for current set up)
I have attempted using several market utilities but have had no luck, i havent yet called T-mobile because im fairly certain that the unlock code with custom roms installed wont work (correct me if im wrong this is just an assumption im making)
Does any one know of a way to sim unlock the vibrant while on custom roms?
Do i have to use a hex editor?
If i flash back to stock, use sim unlock provided by t-mobile, will the unlock persist after flashing a custom rom?
Thank you in advance to those who reply.
- Cheers
Click to expand...
Click to collapse
Unlocking has nothing to do with having a custom rom or not.
1. Easiest way is to call T-Mobile for unlock code
2. Quickest way is to follow these directions:http://forum.xda-developers.com/showthread.php?t=761045
3. Yes you will need a hex editor and be able to use adb.
Once unlocked it will stay unlocked after flashing custom roms.
I was just in an area without decent T-mobile coverage and had to unlock to use a AT&T GoPhone sim. Did #2 from above. 10 minutes max.

[Q] Want to jailbreak but dont know if boatloader is already unlocked

Hi everybody.
I just acquiered a note 2 (SCH-i605). And I found that it has been already rooted. I can use non verizon sim whith it. But i dont know if the bootloader is unlocked. I did some researsh but cant find out if there is a relationship between unlocked bootloader and the possibility of using another operator sim. The recovery is stock.
So i want to use "No You Verizon" program from AdamOutler thread http://forum.xda-developers.com/showthread.php?t=2272066
There are my questions:
- If the bootloader was already unlocked, will using the "No You Verizon" brick the device or cause any problem?
-The current android version on the device is 4.1.1 . After jailbreak, root, recovery with "No You Verizon" can i directly flash any custom rom (like AOKP kitkat or an AOSP 4.2 custom rom ....) without any workaround?
-If i do so (flashing a custom rom), will bootloader still unlocked?
Ps: My understanding is that to be able to unlock the bootloader i should stick to version 4.1.1 up to 4.2 .... of stock touchwise firmware. If i flash the stock 4.3 i wont be able to unlock the bootloader. im i right?
Thank you and sorry for my english.
I find my answers
Well, i think i find my answers. Maybe it will help someone else.
1- If i flash 4.3 OTA i will have a locked bootloader (forever or use safestrap)
2- To jailbreak, according to the version of my firmware i will use the corresponding Casual program from Adams casual thread
3- After jailbreaking, rooting, installing custom recovery i can flash any custom rom (directly in recovery, not with odin)
4- Depending on the custom rom i will need to update the firmware
Usefull threads are in Verizon Galaxy Note II Android Development section.

Xperia M4 Aqua Stock Flash and Recovery

Hello guys!
I have a Sony Xperia M4 Aqua E2303 from Orange with their custom firmware.(Their Apps and start-up logo, etc.)
It is possible to flash the sony stock firmware(marshmallow) to get rid of this custom firmware ?
Also after flashing the stock it is possible to install a custom recovery like TWRP?
If is possible to do those operations ,is there a way to back up the actual firmware in case of possible problems?
Im kinda new to this forum but i want to thanks in advance for your help and advices .
Thanks again and have a good one !
If you bought it from Orange, check that your booloader is unlockable (to do this, type this in the call menu: *#*#7378423#*#* then in Services info, rooting status you can see it)
If it's unlockable, you can flash recovery and root it after you unlock the bootloader (You will lose your DRM keys)
Here is a guide about rooting and unlocking.
With root, you can also remove those apps that you want.
(the guide is made for E2353, idk if the files will work for you...)
Also, here you can find the stock roms.
Diverti said:
If you bought it from Orange, check that your booloader is unlockable (to do this, type this in the call menu: *#*#7378423#*#* then in Services info, rooting status you can see it)
If it's unlockable, you can flash recovery and root it after you unlock the bootloader (You will lose your DRM keys)
Here is a guide about rooting and unlocking.
With root, you can also remove those apps that you want.
(the guide is made for E2353, idk if the files will work for you...)
Also, here you can find the stock roms.
Click to expand...
Click to collapse
Thanks for your help buddy.
Unfortunately the bootloader is not unlockable.
But i took the risk and i flashed a stock firmware (E2303,Central Europe 1, 6.0.1) via Flashtool and XperiFirm. I got rid of all orange apps except one which is good ,my free space is around 4gb from those 8gb. Also the phone is more faster in menus and some apps.
I saw a thread here on xda , about rooting and flashing recovery with locked bootloader but need to downgrade to lollipop Here. I do not not know if it is worth the while.
Is there any way to unlock the bootloader even if it says that it can not ? Maybe Sony Support?
Thanks again ! Good Day !
Your welcome, also i sad to hear, that you can't unlock your bootloader Have a nice day

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