[Q] Will I lose sim unlock after OTA Update? - Desire HD Q&A, Help & Troubleshooting

Hi, I have a T-Mobile branded Desire HD that I bought from Amazon. It´s sim unlocked because I´m using it right now with another carrier in Uruguay. In fact I never used it with T-Mobile.
I guess it was sim unlocked using a code because it shows the T-mobile splash screen when I turn it on and it is S-ON.
I recently received the gingerbread OTA notification and before applying it I would like to know if I could lose the sim unlock after applying the OTA, because in case I lose it, I don´t have the code to unlock it again.
The ROM I have is 1.72.111.2 and it says release-keys at the end of the compilation number.
Did someone lost sim unlock after applying an OTA update?
Thank you.

Not it will not be relocked if you update the firmware.

Rockjock007 said:
Not it will not be relocked if you update the firmware.
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Click to collapse
Thanks Rockjock007 for your quick reply.
Just one other question. In case for some reason I do get my phone relocked after the OTA update, is it possible to downgrade from the gingerbread version so I can root it and unlock it again?.
Thank you.

Well since you can not have it relocked after the ota upgrade your question is unaswerable. Blokes have done the ota update, reflashed roms left right and center and no one has reported that it relocked itself. Enjoy your handset! thank your lucky stars you are not on WND! LOL

LOL!, great. I will give it a try then and post the result.
Thank you!.

I have just applied the gingerbread OTA and it all went great!. The phone is still unlocked and running gingerbread.
Thank you!.

Related

Unlocked Update Question.

Hi my orange phone is now unlocked and debranded. If an update comes out in the future will it just update as normal or will i have to use a goldcard and also will it stay unlocked.
thanks
Dion
Other threads suggest keep the Goldcard in when doing it but they also say you will get locked again...another reason to get unbranded handsets!!
So i take it the only way i can fix this is to install an orange update in future.
Yes? / No?
By the way, does anyone know when we are gonna see an orange Uk rom. Or is there one out there somewhere
If the unlock was done via the IMEI number I would think that, even if the update locked the phone, the unlock code would work again.
That's my hope anyway.

Flash new ROM to unlocked phone

Good Day
Sorry if this question was asked before, I am not clear about flashing new ROM.
I have a locked GN3 from tmobile, I bought unlocked code from eBay and my phone now working perfect with international career.
If I flash new ROM 4.3 or 4.4, will it be locked again? if tmobile release new update KitKat 4.4, should I update? re locked?
Thanks
Flashing any rom will not lock ur bootloader. Once u unlocked ur boot loader, unless u lock it back. It will not be locked by flashing roms etc
Sent from my GT-I9300
socheat said:
Good Day
Sorry if this question was asked before, I am not clear about flashing new ROM.
I have a locked GN3 from tmobile, I bought unlocked code from eBay and my phone now working perfect with international career.
If I flash new ROM 4.3 or 4.4, will it be locked again? if tmobile release new update KitKat 4.4, should I update? re locked?
Thanks
Click to expand...
Click to collapse
OP...I used Chainfire's RegionLock Away App on my rooted T-Mobile Note 3 and had to Odin back to stock for some troubleshooting and it was still sim unlocked. Once you sim unlock it once you should be good to go from there on out.
JellyYogurt said:
Flashing any rom will not lock ur bootloader. Once u unlocked ur boot loader, unless u lock it back. It will not be locked by flashing roms etc
Sent from my GT-I9300
Click to expand...
Click to collapse
He's not talking about his bootloader, he's talking about the phone being sim locked to T-Mobile's network.
bp328i said:
OP...I used Chainfire's RegionLock Away App on my rooted T-Mobile Note 3 and had to Odin back to stock for some troubleshooting and it was still sim unlocked. Once you sim unlock it once you should be good to go from there on out.
He's not talking about his bootloader, he's talking about the phone being sim locked to T-Mobile's network.
Click to expand...
Click to collapse
My fault
Sent from my GT-I9300
Thanks again.

Unlocking T-Mobile M9 phone?

I have a question and could find an answer, well maybe a few... First if you have an unlocked version of the m9 directly brought from HTC all updates come from them not any carriers? With that being said if you by a T-Mobile version and get an unlock code from them will updates still come from them or HTC?
madskills843 said:
I have a question and could find an answer, well maybe a few... First if you have an unlocked version of the m9 directly brought from HTC all updates come from them not any carriers? With that being said if you by a T-Mobile version and get an unlock code from them will updates still come from them or HTC?
Click to expand...
Click to collapse
HTC updates the phones sold through HTC. Any phone with carrier branding has HTC submitting their software to the carrier, and then it's released after carrier approval. It makes no difference if the phone is locked, unlocked, used on a different network, etc.
The only way you can go about getting updates directly from HTC in the past is through S-Off and a CID change, effectively changing your device ID, but A: I'm not sure if this is still the case and B: If you're asking the question that you asked, this is going to be a bit too complicated for me to explain at the moment. So the simple answer is No.
madskills843 said:
I have a question and could find an answer, well maybe a few... First if you have an unlocked version of the m9 directly brought from HTC all updates come from them not any carriers? With that being said if you by a T-Mobile version and get an unlock code from them will updates still come from them or HTC?
Click to expand...
Click to collapse
If you unlock the phone you will have to manually update the phone. If you stay stock you will get updates from T-Mobile, although they will lag the official (and XDA unofficial) releases by a substantial time.
Most folks unlock because they want to flash a custom ROM anyway, and will get updates on that ROM, rather than HTC or T-Mobile.
stevedebi said:
If you unlock the phone you will have to manually update the phone. If you stay stock you will get updates from T-Mobile, although they will lag the official (and XDA unofficial) releases by a substantial time.
Most folks unlock because they want to flash a custom ROM anyway, and will get updates on that ROM, rather than HTC or T-Mobile.
Click to expand...
Click to collapse
hmmmmm actually depends on which UNLOCK. If he meant unlocking it to make it carrier free but leaving everything stock then it'll update automatically. If he unlocks the bootloader but still remains stock without changing anything then it'll be auto still. I believe the only time you need to manually update is when you alter the recovery partition of the phone (installing custom recovery CWM/TWRP/etc) which means you'll probably run a custom rom, which also prevents automatic updates.
Teo032 said:
hmmmmm actually depends on which UNLOCK. If he meant unlocking it to make it carrier free but leaving everything stock then it'll update automatically. If he unlocks the bootloader but still remains stock without changing anything then it'll be auto still. I believe the only time you need to manually update is when you alter the recovery partition of the phone (installing custom recovery CWM/TWRP/etc) which means you'll probably run a custom rom, which also prevents automatic updates.
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Click to collapse
I'm assuming he meant unlock the bootloader, not the carrier. But I personally would not go to the trouble of unlocking the bootloader unless I was going to go custom ROM.
stevedebi said:
I'm assuming he meant unlock the bootloader, not the carrier. But I personally would not go to the trouble of unlocking the bootloader unless I was going to go custom ROM.
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Click to collapse
yeah I got that, but he said unlock code and from T-mobile so I deduced it to carrier unlocking lol.
Well I actually already unlocked the boot loader and using custom ROMs so not that be of a deal more so for my understanding. So if everything was stock and just got an unlock code from T-Mobile to unlock the device and say used the phone on AT&T or Verizon where would the updates come from ? The carrier you are on at the time or HTC?
By the way that's for the help and responses guys!
madskills843 said:
Well I actually already unlocked the boot loader and using custom ROMs so not that be of a deal more so for my understanding. So if everything was stock and just got an unlock code from T-Mobile to unlock the device and say used the phone on AT&T or Verizon where would the updates come from ? The carrier you are on at the time or HTC?
By the way that's for the help and responses guys!
Click to expand...
Click to collapse
You are not going to get updates for a T-Mobile phone while on an AT&T network, even if you stayed stock. I don't think the download would work, and even if it did the ROM would not work with your variant. I think they will detect that your phone is not AT&T and not even offer the update.
It sounds like you have installed a custom ROM. In that case you won't get OTA at all, from anywhere; you simply update the ROM when the developer releases a new version.
stevedebi said:
You are not going to get updates for a T-Mobile phone while on an AT&T network, even if you stayed stock. I don't think the download would work, and even if it did the ROM would not work with your variant. I think they will detect that your phone is not AT&T and not even offer the update.
It sounds like you have installed a custom ROM. In that case you won't get OTA at all, from anywhere; you simply update the ROM when the developer releases a new version.
Click to expand...
Click to collapse
Yea I got that part was more just to understand how that process works thanks for the help
LOck again?
madskills843 said:
Yea I got that part was more just to understand how that process works thanks for the help
Click to expand...
Click to collapse
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
chamosolano said:
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
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Click to collapse
Who did you buy your unlock code from?and how much did it cost. Thanks
Sent from my SM-G920T using XDA Free mobile app
18 dolar but your need change original software
You can get an unlock code from T-Mobile if you meet their requirements
Who did you buy your unlock code from?Do you have a link? Thanks
Sent from my HTC One M9 using XDA Free mobile app
chamosolano said:
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
Click to expand...
Click to collapse
SO did you have to root your m9 before you could enter your unlock code?please explain how you did it.I have the unlock code for my m9.I just can't get it to come up on the key pad to say enter unlock code.I put a Att sim card in my device.please explain what I need to do. Thanks
Sent from my SM-G920T using XDA Free mobile app
chamosolano said:
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
Click to expand...
Click to collapse
Yes did the same and still unlocked after restoring my stock rooted T-Mobile nandroid

Android M Update

Hello.
by now some of you m8 users should have received the new update. the question I have from is that what was your bootloader status when you updated your phone? mine says modified with relocked bootloader. I and the other guys who have the same issue as me are a bit afraid about updating the phone because we don't know what might happen.
SO if you did get the update please share the following information with us.
1. your carrier and your CID.
2. Bootloader status before the update.
3. Bootloader status after the update.
Thank you very much and happy holidays. :angel:
http://forum.xda-developers.com/showthread.php?t=2696514
Stop cross posting.
To be able to update you need a 100% and NEVER rooted stock rom + recovery. That's all ! You do NOT need to relock the BL or anything else.

Root

Is there a way to root the phone with the more recent updates? I never got the bootloader unlocked before they locked it for good
You only can root if ur bootloader is unlocked.
Since August patch, you cant unlock ur bootloader. You need to downgrade ur phone to pre august.
But your bootloader stays unlocked if you update to newer versions
¥sBielefeld said:
You only can root if ur bootloader is unlocked.
Since August patch, you cant unlock ur bootloader. You need to downgrade ur phone to pre august.
But your bootloader stays unlocked if you update to newer versions
Click to expand...
Click to collapse
Is there a way to downgrade without an unlocked bootloader? I see one firmware thread, but it says it requires an unlocked bootloader.
I'm quite fed up with the aggressive task killer Nokia piled into the TA-1045, but without root I can't seem to remove or even stop it.
jason2678 said:
Is there a way to downgrade without an unlocked bootloader? I see one firmware thread, but it says it requires an unlocked bootloader.
I'm quite fed up with the aggressive task killer Nokia piled into the TA-1045, but without root I can't seem to remove or even stop it.
Click to expand...
Click to collapse
You can bring ur phone to the service center or you can downgrade using ntool. But it is payed only.

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