Rooting Unlocked Phone Question - One (M9) Q&A, Help & Troubleshooting

I have an ATT phone currently unlocked and using it on T-Mobile. I want to root and use it on T-Mobile, but Im a little nervous that once I root, and wipe everything, the phone will be re-locked to ATT. So my question is, once I root will I lose my carrier un-lock?

It might be helpful to clarify a couple of things. It sounds like you're currently SIM-unlocked (thus able to use your AT&T branded M9 on T-Mobile). Are you currently bootloader-locked and want to unlock it so you can root? Or are you already bootloader unlocked?
Rooting definitely does not wipe/re-lock anything. Unlocking your bootloader triggers a system wipe. My understanding is that once your phone is SIM-unlocked, system wipes don't affect your phone's SIM status.

Sorry for the confusion. I am currently sim unlocked, and I want to bootloader unlock. However, before I unlock my bootloader, I want to make sure that I wont re lock my sim. My ultimate goal is to unlock bootloader in order to root, but I dont want to relock my carrier to ATT. Yes, it is an ATT phone and I'm using it on T-Mobile.

I'm pretty sure that unlocking the boot loader will not affect your SIM-unlocked status.
But if it were me, I would want a more definitive answer than that.
Another forum member may be able to answer for sure. In the meantime, consider asking HTC directly via their chat system. I've found them friendly and straightforward.

random155 said:
I have an ATT phone currently unlocked and using it on T-Mobile. I want to root and use it on T-Mobile, but Im a little nervous that once I root, and wipe everything, the phone will be re-locked to ATT. So my question is, once I root will I lose my carrier un-lock?
Click to expand...
Click to collapse
No you won't lose your unlocked network status.
The unlock once done is permanent.
There was one a while ago on the s3, an app, which was unofficial and I lost that a few times between flashes, but I don't think you'll have that issue.

Thank You. Unlocked boot loader, rooted and still have sim-unlock.

Related

Removing unlocking program

I was able to successfully unlock my XDA2... Thanks.
Now that it is unlocked, can I remove the unlocking program? I would like to reset the device, but still have it unlocked.
Thanks,
a Newbie
Yes.
Ninja1
But of course
Yes and you may flash other ROMS on the phone and it will still remain unlocked for ever.

Unlocking the Rogers bootloader?

I've been trying to unlock my Rogers Arc's bootloader for a while now and it doesn't seem to be working. I've flashed WWE firmware that wasn't Rogers branded and I still can't get into fastboot mode. Is there any other way of unlocking the Rogers Arc's bootloader?
By definition, Rogers branded phones can't have unlocked bootloaders (as I posted in the other thread, blagus is trying to work around this)
Just want to add that SIM-unlocking your phone won't make a difference either. I thought doing so along with un-branding it would allow me to unlock the bootloader, but I was wrong.
DemonicHawk said:
Just want to add that SIM-unlocking your phone won't make a difference either. I thought doing so along with un-branding it would allow me to unlock the bootloader, but I was wrong.
Click to expand...
Click to collapse
Wish it were true, but it's also bad logic.
SIM/network unlocking is independent of any software/firmware/bootloader.
The bootloader is loaded before any firmware/ROM (i.e. generic/debranded) meaning that altering anything on top of it wouldn't have an affect.
Right now, there's almost no reason to unlock the bootloader anyways. There are no custom ROMs available yet so the only reason would be to root 2.3.3 which can't be rooted with Gingerbreak.
Maybe this can help you? I haven't tried yet, but will do soon.
http://forum.xda-developers.com/showthread.php?t=1115989

Unlocking bootloader after rooting

I have just rooted my phone. I wonder if I can unlock bootloader after rooting?
If I can, which way is the easiest way?
And also I want to know the benefits of unlocking Bootloader.
I want to add that I don't know so much about doing so complicated things, please know that while informing me.
I really appriciate your answers...
stock rom Gingerbread 2.3.3, rooted.
Rooting and bootloader unlocking are separate. Your bootloader has to be unlocked using a special code unique to your phone. The code is supplied by Sony Ericsson. It won't work if your phone is a carrier locked one. Unlocking the sim card won't enable it either. You need something called fastboot and only unbranded, unlocked phones have it.
Sent from the best phone ever

Vodafone Australia GT-N7105T how to unlock bootloader?

Not sure exactly where to post this as your forums are very American Carrier focused so I just went with model number.
I am just entering the world of rooting Android phones etc. so forgive my noob-osity but am eager to learn after realising this carrier phone really isn't MY phone.
I am wanting to use Chainfire's CF-AutoRoot to get root access on my Australian Vodafone GT-N7105T device however his instructions make very clear that the device will be bricked if I do not unlock the bootloader. I cannot seem to find a method of unlocking the bootloader for this specific device. Can anyone help with this?
Also just in general, some Rooting methods I have read about don't seem to "require" unlocking the bootloader or maybe haven't mentioned that it is part of the process.
Is unlocking the bootloader something that needs to be done ALWAYS when you root? I thought that unlocking the bootloader was only required if you wanted to flash custom ROMs and that having a locked bootloader did not prevent some rooting methods? If that is the case then I'm confused as to why Chainfire's CF-AutoRoot needs an unlocked bootloader as it's purpose is to leave everything stock?
Thanks for your assistance.

Question - factory unlocked H815- will oem bootloader unock etc affect carrier unlock

Simple question but can't really find the answer online.
Bought an H815, no carrier label etc. My ATT sim works in it.
I want to unlock the bootloader (OEM process) root, add TWRP and flash custom ROMS. Will this affect the factory unlocked carrier status?
How is it carrier unlocked btw , at the hardware level or bios type process? I see the H815 comes factory carrier unlocked?
tia
Assuming your phone was purchased sim free, then no, bootloader unlock shouldn't affect it. You can always make a backup with SALT first (bootloader can be locked when you take the backup) so if for whatever reason it does get removed then you can restore it.
Btw, LG's don't support fastboot oem unlock. You need to do it via Official LG bootloader unlock website or UsU (look here in the threads) if your device isn't supported officially - if it is an EU H815 it official should work though.
fr eBay sim free. I'll look into the SALT backup.
I did a bit of work already and signed up as an LG dev and do see the LG website process which I was going to do to start.
So then adding TWRP and a custom rom will not affected the carrier unlock as well?
thanks
frodiggs said:
Simple question but can't really find the answer online.
Bought an H815, no carrier label etc. My ATT sim works in it.
I want to unlock the bootloader (OEM process) root, add TWRP and flash custom ROMS. Will this affect the factory unlocked carrier status?
How is it carrier unlocked btw , at the hardware level or bios type process? I see the H815 comes factory carrier unlocked?
tia
Click to expand...
Click to collapse
i have h811 TMOBILE phone i got it unlocked. it was unlocked by tmobile.
i unlocked bootloader and carrier unlocked keeps it unlocked no matter what. ive flash this phone so many times.
thats just my experience
OK thanks, Had a bad experience w a Samsung Grand Prime which I do not want to relive.

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