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(Q)Unsign genuine htc roms

Hi guys
This might sound like a stupid question.
How does a genuine Htc rom know that it can't be flashed to a network version of the same device. I take it its done with the spl that's why we have hardspl.
But is there a way to unsign a htc HTC rom to make it flash to a network version of the device without getting invalid vendor id.
Could it be stripped out and reset with the id needed?

i know if i understood right but according you lets take an example of a hd2 and htc diamond, so are you trying to flash a diamond rom on a hd2, or you want to flash different brand rom hd2 into your hd2, if thats the case then you need your phone to be security unlocked, Hard spl wont work

What I would like to do is flash a o2uk HD7 with the HTC euro rom and as there is no hardspl or cid unlock it makes it hard.
But I was thinking there must be a way to change the euro rom id to think it can be flashed.

sutt359 said:
What I would like to do is flash a o2uk HD7 with the HTC euro rom and as there is no hardspl or cid unlock it makes it hard.
But I was thinking there must be a way to change the euro rom id to think it can be flashed.
Click to expand...
Click to collapse
You could contacts chef for that. Someone will be able to help you. I know you need to be security and CID unlocked to flash any rom

[Q] How to deBRAND HTC Mozart from T-Mobile?

I have HTC Mozart with latest MANGO update from ZUNE!!
It is from Germany, T-MOBILE with all their apps and addons I don't need here in Bosnia!!! BTW, it SIM Unlocked!!!
How, if possible, to make it run with ORIGINAL HTC WP7.5 Mango!!!???
I searched for T-Mobile MANGO ROM but it nowhere to be found,
all I have available on NET is older ROMS from T-Mobile but I am afraid to BRICK my device if I try DOWNGRADING it from Mango to older BOOTS such as 1.28 or 1.30!
Any solution to this, I would appreciate your help!!!

The capital letters and explamation marks don't actually make it easier to help you, BTW.
If you're trying to de-brand the phone, why would you want a T-Mobile-branded ROM? You just want a stock HTC ROM. It has to be for the correct phone, but tht's about it.
If your bootloader (SPL) is already on version 5, you may have a problem replacing the ROM. If you're on 4.5 or lower, you should be able to flash any official ROM without damaging the device.

ok, thanks

Hey all,
First of all I want to say I am glad that I found this forum and community. I think you really can help me out with my (futher) questions.
Since my Telekom branded HTC Mozart won't get the tethering update I am on the search to debrand my HTC Mozart.
I already read that it is essential to have the right SPL Version, now when I enter the bootloader mode I get following data:
PD67100
SPL-4.5.XXXX.X
Now I have a few Questions:
1. Do I need to check other data before starting to debrand the Phone?​2. Will I get further Updates via ZUNE after I debranded my Phone?​3. What are the main reasons to
a. leave it branded?
b. debrand the Phone?​4. Are there some issues with apps form the Marketplace after the debrand?​
And last but not least:
5. Where can I find a working debranded ROM?​
I would really be thankful for any kind of hints and help
Best regards
WPeter7

@WPeter7:
1) Well, you need to make sure that you're getting an unbranded (open market) ROM, and you need to make sure that your ROM matches your hardware. You also need to back up pictures/movies/music/whatever if you have any on the phone that aren't already on the PC.
2) Yes, official ROMs will continue to receive updates.
3) Leaving it branded lets you access carrier-specific features, like TMO's MyAccount app. It also is simply les hassle, and you don't have to lose all your data (which will hppen if you flash a ROM). Unbranding the phone means you remove all carrier customizations, and may receive updates earlier (because the carrier doesn't need to test and customize them).
4) No, not if it's an official ROM and the region is correct (i.e. if you can access apps now and you use the same primary WLID, you'll be able to access them again). However, you'll probably lose access to carrier-specific apps, as mentioned above.
5) Go look in the forum or wiki section specific to your phone. There should be a list of official ROMs. Alternatively, check this thread: http://forum.xda-developers.com/showthread.php?t=1254384

[Q] Downgrade 5.xx Bootloader

Hello all,
since some weeks I have a HTC HD7, I bought it through Ebay, not knowing that it is O2_DE-branded.
OS Version: 7.10.7740
Firmware Version: 2250.21.51002.207
ROM Version: 5.10.207.02
Bootloader Version: 5.10.2250.0(131983)
I know that there is a possibility to downgrade the bootloader 5.xx thanks to ansar, but it's not available for O2_DE.
Can't I just flash Ansars Downgrade-ROM on my HD7? Because I don't know any great differences between HTC Europe and O2_DE-ROMs.
But everytime I try to flash the ROM on the HD7, it says 'Flash Write Error'. Is there any way to avoid this error?
I would really like to install custom ROMs!

Well, there's always the option of using a goldcard or similar to downgrade. It requires a little bit of hardware (modified USB cable and a USB SD cardreader) but it's not very expensive and the procedure is pretty easy. That lets you downgrade the SPL so you can install HSPL and then flash whatever you want.

Jintzo said:
Hello all,
since some weeks I have a HTC HD7, I bought it through Ebay, not knowing that it is O2_DE-branded.
OS Version: 7.10.7740
Firmware Version: 2250.21.51002.207
ROM Version: 5.10.207.02
Bootloader Version: 5.10.2250.0(131983)
I know that there is a possibility to downgrade the bootloader 5.xx thanks to ansar, but it's not available for O2_DE.
Can't I just flash Ansars Downgrade-ROM on my HD7? Because I don't know any great differences between HTC Europe and O2_DE-ROMs.
But everytime I try to flash the ROM on the HD7, it says 'Flash Write Error'. Is there any way to avoid this error?
I would really like to install custom ROMs!
Click to expand...
Click to collapse
really no need to use Ansars Downgrade SSPL ROM coz its for undbanded HTC Europe device
not your case
use Y-cable to downgrade your bootloader as GoodDayToDie said

[Q] Downgrading 5.XX bootloader for my TMO_DE branded Mozart

Hello
I know this has been discussed alot. But i just want to check in before doing this to my phone.
So i have upgraded to 5.11 Bootloader unwillingly and now i want to downgrade back to a 1.xx bootloader and install a HSPL So i could install a Custom full unlocked WP7 phone
First of all here is my phone's current status:
HTC 7 Mozart (1st gen) TMO branded with no sim lock
OS:7.10.7720.68
Firmware: 2250.21.50401.111
HW revision: 0004
Radio: 5.71.09.02a_22.51.50.21U
Bootloader: 5.11.2250.1(133065)
Unfortunately I have no access to any Android/WM 6.5 phone and i have no SD/micro-SD card (I can buy them, but i'd rather not because they have no use to me) But i do have a 8GB USB flash.
So, from what i have read, Since i have a TMO_DE (111) phone, I cannot use ansar's ROMs to downgrade and my only option would be the goldcard method.
The only thread about downgrading 5.xx SPL that i meet their requirements is This
So a few questions:
1. Do i have to use the Goldcard.IMG provided in that thread or i need to make myself one for Mozart as said in other threads?
2. Im going to use "RUU_Mozart_TMO_DE_1.30.401.01_Radio_5.54.09.21_22.33b.50U_NoDo_Signed_by_ansar" ROM. Is this correct ROM to do a downgrade with?
3. Just checking in, After a successful Downgrade (If i don't brick my phone) Im going to first Install HSPL as instructed in [DFT][Updated!#3] HSPL / RSPL for HTC WP7 First Generation And then Install a Custom ROM in [update][DFT Freedom ROM] Mozart mango 7720 V2 version. Is this right to get a FULL unlocked device?
4. After i Downgrade my phone using Goldcard, Do i get a working OS so i can resume the work later?
Thank you all. And let this topic stay to answer some newbies like me

Ad. 1. You can use Goldcard.img from that topic (post #5).
Ad. 2. I think so it's ok ROM, but you have to try.
Ad. 3. Yes.
Ad. 4. After downgrade you can install other stockROM or (if you have HSPL) costomROM. If you install stockROM you lost HSPL.
You can try that downgrade method (SLSPL by Ansar): http://forum.xda-developers.com/showthread.php?t=1196183 for HTC Mozart you have link in #2 post.

Question 4: Yes. Downgrading the SPL (even breaking it, which is what a "half-bricked" phone has) does not limit the ability of the OS to operate.
Note, however, that any official updates installed during this time may also include a new SPL, forcing you to downgrade it again if you want to use a custom ROM.

Ad. 1. You can use Goldcard.img from that topic (post #5).
Ad. 2. I think so it's ok ROM, but you have to try.
Ad. 3. Yes.
Ad. 4. After downgrade you can install other stockROM or (if you have HSPL) costomROM. If you install stockROM you lost HSPL.
You can try that downgrade method (SLSPL by Ansar): http://forum.xda-developers.com/show....php?t=1196183 for HTC Mozart you have link in #2 post.
Click to expand...
Click to collapse
Hello
Thank you for your answers
about ansar's downgrade thread, Im not sure if i can use those roms for my phone. Can you confirm that they will work on my device?
I'd love such a easy method instead of creating a Y cable
Question 4: Yes. Downgrading the SPL (even breaking it, which is what a "half-bricked" phone has) does not limit the ability of the OS to operate.
Note, however, that any official updates installed during this time may also include a new SPL, forcing you to downgrade it again if you want to use a custom ROM.
Click to expand...
Click to collapse
Hello
So i assume that i won't get a full brick even if i get a failure update or even power loss in the middle of updating process?
Thank you

arman34r said:
Hello
Can you confirm that they will work on my device?
Click to expand...
Click to collapse
Are you read Ansar topic (point 3 - bold)?
The process is as simple as of these 3 steps
1. Download the proper SLSPL ROM for your branded device operator, see post #2
2. Flash the provided SLSPL ROM and will re-boot in tricolor Bootloader screen, see post #3
3. Flash ANY Stock ROM of your branded device operator and finish the story of 5.10 Bootloader
Click to expand...
Click to collapse

Budniu said:
Are you read Ansar topic (point 3 - bold)?
Click to expand...
Click to collapse
Yes, but i don't understand what it does mean exactly
Do you mean that those roms will work on my device (to downgrade it) but i need to have a Stock rom to install on it? (but i can install HSPL on top of it to get custom roms, right?)
I can't think of any other definition right now
And i'm sorry my english is not that good, so maybe you can clear it up for me if it's not that?

1. Install SLSPL ROM for Mozart: RUU_Mozart_HTC_Europe_5.11.401.01_SLSPL_Signed_by_ ansar.zip
2. Install branded stockROM=originalROM for Mozart. Download this one: RUU_Mozart_TMO_DE_1.25.111.05_5.50.09.18_22.24.50_RELEASE.exe
(source from @Football: http://forum.xda-developers.com/showthread.php?t=1427893)
3. Install RSPL/HSPL
4. Install customROM (what you want)
Now, it's clear ?

Budniu said:
1. Install SLSPL ROM for Mozart: RUU_Mozart_HTC_Europe_5.11.401.01_SLSPL_Signed_by_ ansar.zip
2. Install branded stockROM=originalROM for Mozart. Download this one: RUU_Mozart_TMO_DE_1.25.111.05_5.50.09.18_22.24.50_RELEASE.exe
(source from @Football: http://forum.xda-developers.com/showthread.php?t=1427893)
3. Install RSPL/HSPL
4. Install customROM (what you want)
Now, it's clear ?
Click to expand...
Click to collapse
Thanks for clearing things up
Trying this now.

I have downloaded RUU_Mozart_HTC_Europe_5.11.401.01_SLSPL_Signed_by_ansar.zip And tried to flash my Mozart. But got the "INVALID VENDER ID" error (My phone is not branded). I live in Middle East. Does this mean that I can't use the Europe version (which ansar provided) to flash my Phone?
Apologies for the kind of naive question. I'm still a newbie in these stuff.

Hmmm I don't know why, but I think so you have to ask Ansar why you can't install that ROM.

[Q] Downgrading / Interop Unlock for HD7 / Edit: Custom ROMs How-to Help

Hi,
I'm attempting to Interop Unlock my HTC HD7.
I've just run a restore in Zune, but it appears that the earliest restore gives me:
OS version: 7.10.7720.68
Firmware revision number: 2250.21.51002.728
Hardware revision number: 0002
Radio software version: 5.71.09.02a_22.51.50.21U
Radio hardware version: A.102.0.D4
Bootloader version: 5.10.2250.0(132968)
Chip SOC version: 2.2.5.0
I understand that if I have a Firmware revision number of 5xxxx, I cannot run the Interop Unlock as seen in this thread.
From what I see, it is possible for me to download a Stock ROM, in my case, this, and run that to downgrade my Firmware revision number.
I would just like to clarify before I start this process. Is the above information correct, and to run the Stock ROM, do I simply enter Bootloader Mode, start the .exe as downloaded from the thread, and let it run (seems too simple to me)?
Also, should I manage to get Interop Unlock working on a Firmware revision number of 4xxxx, would the Interop Unlock stick once I update the phone (is normal Zune update even possible after that)?
Thanks.

Be very careful. Since you have bootloader 5.xx
Pretty sure downgrading like that will brick your device. You have to use a y-cable. Last I heard, ive had my hd7 unlocked for a while not sure of newer ways.
Look for the downgrading spl thread in hd7 development. I think that's where it is.
After downgrade spl. I would just install hard-spl and flash a custom rom. Easier.
Sent from my HD7 T9292 using XDA Windows Phone 7 App

Thanks for the reply. Didn't know about the Bootloader thing, fortunately I didn't go ahead with it yet.
I was under the impression that if the ROM is the official ROM for my region (SEA, Singapore, 728), I wouldn't require any modifications to the SPL.
I don't want to mess with the SPL or the bootloader though, I've bricked enough devices (not WP7) to have a phobia of such things. Guess I'll have to wait for a breakthrough in unlocking, unless someone has any other methods.

If you want to be absolutely safe, GoldCard (which what @reeg420 meant when mentioning Y-cable) is the most reliable method.
However, I *think* you can actually downgrade to an older stock ROM just fine even with SPL 5.x. It just won't downgrade the SPL itself the way it normally would. You can't use RSPL on SPL 4.x or higher, which is why being able to downgrade the SPL is sometimes important (people who want to use custom ROMs need RSPL).
I suggest you do a bit more searching before deciding. I have not tried messing with SPL 5.x at all; I briefly had 4.x on my phone and promptly downgraded it to 3.1 again.

Thanks. I decided to go ahead with it, but got an error: "ERROR 226 (Flash Write - FLASH write error happened. Please check your PDA Phone)", which rebooted my phone. Phone appears to be okay though, not bricked.
Looks like I'll probably need to use a GoldCard?
Edit: So it appears that the earliest ROM that allows me to HSPL is this, which has the Bootloader 1.54.2250.0(112696). Could someone check my following steps and verify that I'm correct?
1. Get Y-Cable, USB Gender Changer, MicroSD+Card Reader
2. Get GoldCard Tool
3. Get GoldCard IMG, from this thread? "My custom goldcard.img"
4. Format MicroSD to FAT32
5. Place RUU_signed.nbh extracted from the aforementioned ROM with Bootloader 1.54.2250.0(112696), renamed to SCHUIMG.nbh
6. Run GoldCard Tool, ignore CID box, use GoldCard IMG, Patch MMC
7. Connect GoldCard, Y-Cable, phone, etc, etc, etc, patch phone
8. Get DFT's WP7FG3 from this thread
9. Install HSPL (or should I get RSPL? What is the difference?)
10. Find ROM of my choice (what do you recommend?)
11. Run selected ROM's ROMUpdateUtility.exe, flash device to new Custom ROM
Q1: What happens if the GoldCard process fails?
Q2: Is there any cons as to having an outdated Bootloader?
Q3: Am I able to upgrade my device with Official ROMs in the future after performing this, or must I simply use Custom ROMs from here?
Q4: Will having a Custom ROM affect my connectivity with my network?

ReignOfComputer said:
Thanks. I decided to go ahead with it, but got an error: "ERROR 226 (Flash Write - FLASH write error happened. Please check your PDA Phone)", which rebooted my phone. Phone appears to be okay though, not bricked.
Looks like I'll probably need to use a GoldCard?
Edit: So it appears that the earliest ROM that allows me to HSPL is this, which has the Bootloader 1.54.2250.0(112696). Could someone check my following steps and verify that I'm correct?
1. Get Y-Cable, USB Gender Changer, MicroSD+Card Reader
2. Get GoldCard Tool
3. Get GoldCard IMG, from this thread? "My custom goldcard.img"
4. Format MicroSD to FAT32
5. Place RUU_signed.nbh extracted from the aforementioned ROM with Bootloader 1.54.2250.0(112696), renamed to SCHUIMG.nbh
6. Run GoldCard Tool, ignore CID box, use GoldCard IMG, Patch MMC
7. Connect GoldCard, Y-Cable, phone, etc, etc, etc, patch phone
8. Get DFT's WP7FG3 from this thread
9. Install HSPL (or should I get RSPL? What is the difference?)
10. Find ROM of my choice (what do you recommend?)
11. Run selected ROM's ROMUpdateUtility.exe, flash device to new Custom ROM
Q1: What happens if the GoldCard process fails?
Q2: Is there any cons as to having an outdated Bootloader?
Q3: Am I able to upgrade my device with Official ROMs in the future after performing this, or must I simply use Custom ROMs from here?
Q4: Will having a Custom ROM affect my connectivity with my network?
Click to expand...
Click to collapse
Answer for Q1: it will definitely brick your device
Answer for Q2: no cons that may disturb you
Answer for Q3: yes, you're able to upgrade your device with official roms
Answer for Q4: no, as i use custom rom on my device, no connectivity problems

Wow, the GoldCard step looks incredibly daunting then. Guess I'll give this a shot. Will have to wait for the stuff to arrive from Amazon though, which will probably be a while given my location.
Thanks everyone for your input