[Q] Downgrading / Interop Unlock for HD7 / Edit: Custom ROMs How-to Help - Windows Phone 7 Q&A, Help & Troubleshooting

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

Related

[Q] Help needed to get Mango. Reward inside :-)

So, I'm the (un)lucky owner of a Vodafone branded HTC Trophy. I installed the latest HTC update which landed me on SPL version 1.22.2250.
I figured I want to install this version of Mango since I'll be able to to the rest of the updates trough Zune.
I don't know if I'll be needing to unbrand this device or not, I only know that if I run the proper RUU tool against my RGB screen (boot loader?!) it comes out with error 266 and leaves my phone hanging. I then need to reboot my device by pulling out the battery.
I was fairly advanced with Android's ROM way, and by means are not a stupid person. I googled quite a lot and read through most topics in this sub forum but it doesn't make sense yet.
What I'll be needing: A foolproof way to get to the latest Mango version. I don't care whats in between and are willing to take moderate risk such as flashing HSPL. There are so many ways and terms here I simply don't have the time to figure it all out. Time is money and since I'll hopefully be sparing out a few hours with this way I offer the lucky winner of writing me a fool proof step of plans $10 on paypal.
Also, bare with me. English isn't my native language.
Jorijn said:
So, I'm the (un)lucky owner of a Vodafone branded HTC Trophy. I installed the latest HTC update which landed me on SPL version 1.22.2250.
I figured I want to install this version of Mango since I'll be able to to the rest of the updates trough Zune.
I don't know if I'll be needing to unbrand this device or not, I only know that if I run the proper RUU tool against my RGB screen (boot loader?!) it comes out with error 266 and leaves my phone hanging. I then need to reboot my device by pulling out the battery.
I was fairly advanced with Android's ROM way, and by means are not a stupid person. I googled quite a lot and read through most topics in this sub forum but it doesn't make sense yet.
What I'll be needing: A foolproof way to get to the latest Mango version. I don't care whats in between and are willing to take moderate risk such as flashing HSPL. There are so many ways and terms here I simply don't have the time to figure it all out. Time is money and since I'll hopefully be sparing out a few hours with this way I offer the lucky winner of writing me a fool proof step of plans $10 on paypal.
Also, bare with me. English isn't my native language.
Click to expand...
Click to collapse
You can contact me in dutch and i might be able to help you out.
Though i have samsung device.
What version are you running? Did you try to upgrade to Mango beta? are you dev-unlocked?
If you are on NoDo and unlocked, make sure you install provxml deployer and run it before upgrading to mango.
Try installing the zune beta and all the files, than do the upgrade, now run the htc connection setup (this will execute some files which will fully unlock your device). After you did this, make sure to run provxmldeployer again, this will place the same files back, you will need these after the second update to mango b2.
This is what I did to get the same ROM.
I had the 1.22.2250 SPL as well, but then I thought to myself that I don't need useless vodafone apps on my phone, I just need OEM apps because they are more useful than a shortcut to vodafone 360.
So, here's what I did:
1. Go here and download the appropriate ROM for your Trophy. You must get 7004/7008 version. You should download the appropriate ROM that matches the characteristic value of your phone. The ROMs in this thread are all branded, but flashing this ROM will downgrade your OS version and SPL version to 1.09 or 1.10 so you can HSPL later.
After the ROM has been downloaded, extract the zip file somewhere easy to find (eg. desktop).
[Step 2 will erase everything on your phone]
2. Connect the phone by holding down volume down key and connect it via USB. Wait until appropriate drivers are installed. Flash the ROM you downloaded from step 1. This should take less than 10 minutes. After flashing, Trophy will restart and boot to normal. Turn it off. Your phone is still branded in this step.
3. After flashing, download DFT's RSPL/HSPL here and be sure to get the second version. Extract the files somewhere easy to find (eg. desktop). This tool will let you install customized ROMs/unbranded ROMs on your device. Therefore if you replace your SPL with HSPL, you will be able to install the unbranded Mango ROM.
4. Hold down volume down key on the Trophy, and connect it via USB. Trophy will go straight to bootloader state, and run the DFT_RSPL_WP7FG2_LAUNCH exe file . Select the nearest version of SPL shown on your Trophy, and click install. If Trophy reboots, flash was successful, if not, try again until you get RSPL.
5. After RSPL, do step 4 again, but this time, run DFT_HSPL_WP7FG2_LAUNCH and install HSPL, not OSPL. After HSPL, Trophy will reboot. If Trophy successfully boots to Windows Phone, then you have done it right.
7. Go here and download your ROM for Trophy which is RUU_Spark_S_HTC_Europe_4.06.401.00_5.69.09_RELEASE.exe. This is the unbranded ROM which will remove carrier (vodafone) apps.
8. Turn off Trophy and connect it by holding down volume down key and connect via USB so it goes straight to bootloader state, unzip the ROM downloaded from step 7 using winrar or winzip.
9. Open the extracted folder and delete SPL_signed.nbh as this will overwrite your current SPL and will brick your Trophy.
10. Run the rom update utility and happy flashing! Trophy should restart after flashing.
So there you have it. After setting up your Live account, you must go to the marketplace and download HTC Connection Setup and run it. This will configure your carrier settings (3G/HSDPA, MMS) to your phone since this Mango ROM is unbranded and does not carry and customization by your carrier (vodafone).
Cool. Now trying the method from downloaderintruder
Edit: Seems to be working. Flashing final Mango ROM now, will report back when running.
Edit2: Done!
Fantastic - thank you.
I've been trying to do this for a week but to no success
Hi, I still get a ERROR 266 when flashing with the RUU_Spark_Vodafone_ELL_1.10.168.04_Radio_5.52.09.16_22.33a.50.10U_by_ansar ROM? Also get the same if I try to flash the RUU_Spark_S_HTC_Europe_4.06.401.00_5.69.09_RELEASE ROM... I've been struggeling with this the past 5 days and would really appreciate any assistance.
I have the following Trophy:
SPL-1.22.2250.0
OS: 7.0.7392.0
Firmware: 2250.21.12200.168
H/W: 0003
Radio: 5.65.09.25_22.45.50.21U
Radio H/W: A.102.0.D4
Chip SOC: 2.2.5.0
Thanks guys!!!
---------- Post added at 01:35 PM ---------- Previous post was at 01:18 PM ----------
marbur79 said:
Hi, I still get a ERROR 266 when flashing with the RUU_Spark_Vodafone_ELL_1.10.168.04_Radio_5.52.09.16_22.33a.50.10U_by_ansar ROM? Also get the same if I try to flash the RUU_Spark_S_HTC_Europe_4.06.401.00_5.69.09_RELEASE ROM... I've been struggeling with this the past 5 days and would really appreciate any assistance.
I have the following Trophy:
SPL-1.22.2250.0
OS: 7.0.7392.0
Firmware: 2250.21.12200.168
H/W: 0003
Radio: 5.65.09.25_22.45.50.21U
Radio H/W: A.102.0.D4
Chip SOC: 2.2.5.0
Thanks guys!!!
Click to expand...
Click to collapse
Resolved this by changing from a USB 3 port to a USB 2 port? Weird but it worked...
Do i need Y usb cable to do this? Because i`ve tried this with standard usb cable from htc and my Trophy stucked in "USB host mode" screen.
I don`t have that Y cable, and i was looking for solution to debrand phone without Y, and i`ve found this thread, wheres no word about Y cable but now i don`t know
--------------------------------------------------
Ive found solution:
Instead of pressing volume button and connecting it to usb, i`ve holded volume rocker down, and hit the on/off button, when tricolor screen appeared i`ve released volume button and THEN connected my phone to my PC via USB
downloaderintruder said:
I had the 1.22.2250 SPL as well, but then I thought to myself that I don't need useless vodafone apps on my phone, I just need OEM apps because they are more useful than a shortcut to vodafone 360.
So, here's what I did:
1. Go here and download the appropriate ROM for your Trophy. You must get 7004/7008 version. You should download the appropriate ROM that matches the characteristic value of your phone. The ROMs in this thread are all branded, but flashing this ROM will downgrade your OS version and SPL version to 1.09 or 1.10 so you can HSPL later.
After the ROM has been downloaded, extract the zip file somewhere easy to find (eg. desktop).
[Step 2 will erase everything on your phone]
2. Connect the phone by holding down volume down key and connect it via USB. Wait until appropriate drivers are installed. Flash the ROM you downloaded from step 1. This should take less than 10 minutes. After flashing, Trophy will restart and boot to normal. Turn it off. Your phone is still branded in this step.
3. After flashing, download DFT's RSPL/HSPL here and be sure to get the second version. Extract the files somewhere easy to find (eg. desktop). This tool will let you install customized ROMs/unbranded ROMs on your device. Therefore if you replace your SPL with HSPL, you will be able to install the unbranded Mango ROM.
4. Hold down volume down key on the Trophy, and connect it via USB. Trophy will go straight to bootloader state, and run the DFT_RSPL_WP7FG2_LAUNCH exe file . Select the nearest version of SPL shown on your Trophy, and click install. If Trophy reboots, flash was successful, if not, try again until you get RSPL.
5. After RSPL, do step 4 again, but this time, run DFT_HSPL_WP7FG2_LAUNCH and install HSPL, not OSPL. After HSPL, Trophy will reboot. If Trophy successfully boots to Windows Phone, then you have done it right.
7. Go here and download your ROM for Trophy which is RUU_Spark_S_HTC_Europe_4.06.401.00_5.69.09_RELEASE.exe. This is the unbranded ROM which will remove carrier (vodafone) apps.
8. Turn off Trophy and connect it by holding down volume down key and connect via USB so it goes straight to bootloader state, unzip the ROM downloaded from step 7 using winrar or winzip.
9. Open the extracted folder and delete SPL_signed.nbh as this will overwrite your current SPL and will brick your Trophy.
10. Run the rom update utility and happy flashing! Trophy should restart after flashing.
So there you have it. After setting up your Live account, you must go to the marketplace and download HTC Connection Setup and run it. This will configure your carrier settings (3G/HSDPA, MMS) to your phone since this Mango ROM is unbranded and does not carry and customization by your carrier (vodafone).
Click to expand...
Click to collapse
ijust do this. All ok!!
but i have a question. If i want to bo back to 7004/7008 version from Vodafone, do i have to delete again spl_signed??
Its the trophy unbranded totally??
Its because you say to install hpsl and then to delete sppl:signned, and i dont know if i have to delete spl_signned in all roms from this point.
thanks, sorry for my English, i speak spanish
Now the rgb screen says this:
pc40100 ss-bc (4k)
spl-4.6.2250.0 (129185) mng
rammst said:
Now the rgb screen says this:
pc40100 ss-bc (4k)
spl-4.6.2250.0 (129185) mng
Click to expand...
Click to collapse
If you want to go back, you will need to get the 7004/7008 version of the ROM with 401 CV. Check out ansars ROM in the Trophy forum and download that. Go to the bootloader state, and flash it straight to your phone, this will downgrade from 7720 to 7004/7008 (unbranded).
To go back to branded, first you must HSPL your device after downgrading, then download the original ROM for your trophy and flash it. You don't have to delete spl_signed file, you only had to delete this in the mango rom because it will brick the device since the spl version from mango had a huge leap from spl1 to spl4.
Be aware though, some Trophy users who flashed ansars ROMs didn't get past 7008 to get the PreNodo/Nodo update, so you can't use your backup at this time. I'm still looking for a solution on this, but since I don't really like branded phones I'm all good with my Trophy.
downloaderintruder said:
If you want to go back, you will need to get the 7004/7008 version of the ROM with 401 CV. Check out ansars ROM in the Trophy forum and download that. Go to the bootloader state, and flash it straight to your phone, this will downgrade from 7720 to 7004/7008 (unbranded).
To go back to branded, first you must HSPL your device after downgrading, then download the original ROM for your trophy and flash it. You don't have to delete spl_signed file, you only had to delete this in the mango rom because it will brick the device since the spl version from mango had a huge leap from spl1 to spl4.
Be aware though, some Trophy users who flashed ansars ROMs didn't get past 7008 to get the PreNodo/Nodo update, so you can't use your backup at this time. I'm still looking for a solution on this, but since I don't really like branded phones I'm all good with my Trophy.
Click to expand...
Click to collapse
Ok then i understand that im totally unbranded. ok thats ok, i like it.
The next updates will come via zune??
thanks
rammst10 said:
Ok then i understand that im totally unbranded. ok thats ok, i like it.
The next updates will come via zune??
thanks
Click to expand...
Click to collapse
Updates will still go through via Zune.
For the problem regarding how to go back to your backup, here's a theory, IF there will be mango ROMs for our trophies like there's Nodo, we can install that ROM and restore our backup via Zune. That is, IF there will be Mango roms for our trophies with matching CV's.
Now I have the error code c101b001 in the marketplace.
Do you know why?
thaks

interop unlock hd7 running mango

I am wanting to interop unlock my hd7 running latest mango. i tried the htc unlock xap and the connection setup app (which tells to use interop unlock as country) but to no avail. has anyone been able to get interop unlocked on htc hd7 ?
fearlessdolphin said:
I am wanting to interop unlock my hd7 running latest mango. i tried the htc unlock xap and the connection setup app (which tells to use interop unlock as country) but to no avail. has anyone been able to get interop unlocked on htc hd7 ?
Click to expand...
Click to collapse
Do you have it developer unlocked first?
HTC Have 2 OEM Update after Mango
if you updated your Phone with Second OEM Update, you can not Interop Unlock your phone
yes i have a dev account from app hub.
how do i find out if im running second oem? do you have the build number handy? the os version i have is 7.10.7720.68
It's not the OS build number, people. HTC controls the firmware number, not the OS number (that's Microsoft code). 7720.68 just means the RTM release of Mango. I swear, I write this so often...
If the third digit grouping of your firmware starts with 4 - that is, if your firmware version matches *.*.4XXXX.* - or lower, you can use the HTC Interop Unlock XAP. It *might* even be possible with *.*.50XXX.*, but I don't think so, and it certainly isn't possible with *.*.51XXX.* or newer.
well that helps a lot, ya my firmware shows 51004. so are there any workarounds as of yet?
The only work-around I know of is to downgrade. You can roll back a Zune restore point from before the firmware update(s) was installed, interop-unlock, and then reinstall the updates if you want (I've elected to semi-permanently keep my phone a few versions outdated on firmware). You could also flash a stock ROM that includes an older firmware. Be aware, however, that either option will lose some data - everything newer than the backup if you restore, everything on the phone if you flash a stock ROM.
GoodDayToDie said:
The only work-around I know of is to downgrade. You can roll back a Zune restore point from before the firmware update(s) was installed, interop-unlock, and then reinstall the updates if you want (I've elected to semi-permanently keep my phone a few versions outdated on firmware). You could also flash a stock ROM that includes an older firmware. Be aware, however, that either option will lose some data - everything newer than the backup if you restore, everything on the phone if you flash a stock ROM.
Click to expand...
Click to collapse
Hey thanks for the information, I was wondering if there were any guides you can point me to on how to flash from a stock ROM. I have an HTC HD7.
Thanks again for your help. i know sometimes its tiring explaining the same thing over and over, but it is much appreciated.
Go to the HD7 ("Schubert") portion of the XDA-Devs wiki (http://forum.xda-developers.com/wiki). I'm pretty sure you can find the download links for stock ROMs there. You could also try the HD7-specific forum section. You'll download a tool called a RUU (ROM Update Utility) that will have some image files (extensions like .NBH and .NB) along with it. You put the phone in bootloader mode (four bars of different color - you have to boot the phone while holding the Volume Down button). It should have yellow text, and at the bottom should say "Serial". Connect the phone to USB. Your PC will need to install a driver (normally this will happen automatically, if not, use Device Manager to tell the computer to search Windows Update for the driver). Once the driver is installed, the "Serial" will be replaced by "USB". You can now run the RUU program.
I *strongly* recommend creating a backup first! The RUU will wipe all data on the phone, and if the flash fails for whatever reason, you'll be unable to boot the phone again.
Ok Thanks, That was helpful. i read a few guides and I think Im ready to try. i just wanted to ask a quick question before diving in. Hope you dont mind. Some threads make refrences to certain Bootloaders being unable to go through the downgrade process (by flashing a Stock Rom). Is this correct? My bootloader version is:
5.10.2250.0(132968)
If it doesnt matter than are there any other things that would prevent me from doing this process?
And one more question and I promise to leave you alone lol. I plan on backing up my phone before beginning, but if the flash fails for whatever reason and the phone is unable to boot again as you warned, will I still be able to connect it to Zune and restore my backup? Thanks again. Hopefullyone day I can give more to the community once I get used to it.
Booting the phone while holding the Camera button will put it in backup/restore mode. If you connect the phone to the PC while it is in this mode, and the Zune software is running, it should automaticlaly try to restore.
Your bootloader (SPL) version is too high to install HSPL (needed for custom ROMs), and it's high enough that it won't automatically downgrade just by installing a stock ROM. However, you should be able to install the other parts of a stock ROM (in particular, the firmware) just fine.
If needed, there are a couple ways to downgrade the SPL; search the dev&hacking sub-forum for info. I would generally recommend GoldCard, but that will require a little bit of equipment. Apparently, "SLSPL" flashing will allow you to downgrade the SPL safely as well, though I haven't tried it. These are mostly for preparing to install a custom ROM, though - stock ROMs should be installable on any SPL version.
it not work with my trophy verizon
GoodDayToDie said:
Booting the phone while holding the Camera button will put it in backup/restore mode. If you connect the phone to the PC while it is in this mode, and the Zune software is running, it should automaticlaly try to restore.
Your bootloader (SPL) version is too high to install HSPL (needed for custom ROMs), and it's high enough that it won't automatically downgrade just by installing a stock ROM. However, you should be able to install the other parts of a stock ROM (in particular, the firmware) just fine.
If needed, there are a couple ways to downgrade the SPL; search the dev&hacking sub-forum for info. I would generally recommend GoldCard, but that will require a little bit of equipment. Apparently, "SLSPL" flashing will allow you to downgrade the SPL safely as well, though I haven't tried it. These are mostly for preparing to install a custom ROM, though - stock ROMs should be installable on any SPL version.
Click to expand...
Click to collapse
Hey thanks again! Im going to try it out today, cross fingers, Ill let you know how it all went. I appreciate the help.
Well?? Did it work? Would really like to know before I attempt the same
Thanks
did it work ????

Flashing Custom ROM's on WP7

hey guys, really noob question.
im running Mango on my HTC HD7 and im thinking of flashing nextgen+ 3.1 onto it. i was wondering, do i have to revert to NoDo before i get HSPL/RSPL, then flash the ROM? im just not sure about the order. but the main question, can i do it on mango, or is it better to revert to nodo? thanks
The existing OS is irrelevant when you flash a new one. That's more-or-less the point of flashing a new OS; may as well ask if you need to downgrade from Win7 to XP before you reformat your hard drive and install Linux (very roughly analogous).
The original SPL (bootloader) on the phone is *critical* before you install RSPL/HSPL though; the newer bootloaders will break semi-permanently (it's a total pain to recover them) if you try to unlock the bootloader. You should read the HSPL info very carefully. You will almost certainly need to downgrade your bootloader, and there are various ways you can do that depending on what version you currently have.
k thanks, and how do i figure out which version i have of the bootloader? is it the reboot while holding down volume down? if so, what do i look for?
also, how would i downgrade the bootloader if i do decide to flash another rom? one more thing too, im assuming i would lose all of my apps, SMS, email settings etc. ?
Your SPL (bootloader) version is shown in About, along with your firmware and radio versions (under More). It is also shown on the screen with the colored horizontal bands, which is (I believe) the only you referred to.
You need SPL 3.1 or lower to use HSPL. If you have 4.x, I believe you can download by simply installing a stock 3.1 SPL update (look for a radio ROM for your phone, and remove the radio part, just flash the SPL part). If you have 5.x, you'll need to try something like SL SPL. I don't know much about that whole area of WP7; I focus on apps, unlocks, and features for stock ROMs.
Flashing a custom ROM will wipe your phone, yes.

[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.
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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.
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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?
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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
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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] Change Accent Color on my TMO HTC HD7

I have a developer unlocked TMO HTC HD7 on the lates 8107 update. I have been searching a lot but can't find a way to add more accent colors to my device. I would really like to add the Nokia Blue on my device. I know that Samsung Windows Phone users have a dedicated thread for that. Its just that I can't find a similar method for the HTC devices.
Edit: After a few more tries,. I found Advanced Config Tool 1.5 ( I have also attached the xap below)
However I noticed in the manifest file that it needs Interop Unlock Services. So i removed that line.
I can run the application but cant change the accent color. It says unable to apply. Any help ??
Well, if you want an app that requires interop-unlock to work, you'll need to be interop-unlocked. Removing ID_CAP_INTEROPSERVICES so you can install an app is kind of like buying a car without an engine so its affordable: great, now you've got a car that can't drive (or an app that can't do anything high-privilege).
At this point, you've got two options. Either get your phone interop-unlocked (it's entirely possible for the TMO-US HD7; mine is) or install a custom ROM. The first option will probably require downgrading the firmware. The second option will probably require downgrading the bootloader. Both of these are possible, both have certain difficulties, and there are advantages and disadvantages to both approaches. Personally, I stuck with the stock ROM, interop-unlocked and running WP7 Root Tools.
GoodDayToDie said:
Well, if you want an app that requires interop-unlock to work, you'll need to be interop-unlocked. Removing ID_CAP_INTEROPSERVICES so you can install an app is kind of like buying a car without an engine so its affordable: great, now you've got a car that can't drive (or an app that can't do anything high-privilege).
At this point, you've got two options. Either get your phone interop-unlocked (it's entirely possible for the TMO-US HD7; mine is) or install a custom ROM. The first option will probably require downgrading the firmware. The second option will probably require downgrading the bootloader. Both of these are possible, both have certain difficulties, and there are advantages and disadvantages to both approaches. Personally, I stuck with the stock ROM, interop-unlocked and running WP7 Root Tools.
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Click to collapse
Can you please tell me how to Interop Unlock it...I have a developer unlock phone so can sideload max 3 apps
First, you'll need to downgrade the firmware to *.*.4XXX.* or lower. If you've got a backup old enough, you could try just restoring that backup. If not, you could try either flashing just a radio/firmware update (without resetting the phone, and no, I have no idea if this will work) or flashing a full stock ROM with the older firmware (which will wipe your phone). You can find links to HTC released ROMs in the XDA-Developers Wiki; look under the HD7 (Schubert) section.
After you've downgraded the firmware, you need to install the HTC Interop Unlock v2.XAP from Heathcliff74 (check the Interop Unlock thread on the dev&hacking sub-forum) and follow his instructions (it'll use Connection Setup to interop-unlock your phone).
GoodDayToDie said:
First, you'll need to downgrade the firmware to *.*.4XXX.* or lower. If you've got a backup old enough, you could try just restoring that backup. If not, you could try either flashing just a radio/firmware update (without resetting the phone, and no, I have no idea if this will work) or flashing a full stock ROM with the older firmware (which will wipe your phone). You can find links to HTC released ROMs in the XDA-Developers Wiki; look under the HD7 (Schubert) section.
After you've downgraded the firmware, you need to install the HTC Interop Unlock v2.XAP from Heathcliff74 (check the Interop Unlock thread on the dev&hacking sub-forum) and follow his instructions (it'll use Connection Setup to interop-unlock your phone).
Click to expand...
Click to collapse
my spl/bootloader version is 5.12.2250....how can I flash a full ROM with an old firmware ??
It may be possible to flash an older stock ROM (check the Wiki for links to official ROMs) without downgrading your bootloader, although I've not tried. HTC phones use a tool called RUU (ROM Update Utility.exe) to flash. Most ROM downloads will come with a pre-configured RUU (it's a tiny file compared to the ROM image).
Alternatively, you can downgrade your bootloader. The two best-known ways to do this are using a GoldCard (hook a USB SD cardreader with a special file on the card to your phone) or use SLSPL (a way to unlock the SPL version so you can overwrite it with a lower SPL from any old stock ROM). The instructions for both approaches are available on the Dev&Hacking sub-forum.
GoodDayToDie said:
It may be possible to flash an older stock ROM (check the Wiki for links to official ROMs) without downgrading your bootloader, although I've not tried. HTC phones use a tool called RUU (ROM Update Utility.exe) to flash. Most ROM downloads will come with a pre-configured RUU (it's a tiny file compared to the ROM image).
Alternatively, you can downgrade your bootloader. The two best-known ways to do this are using a GoldCard (hook a USB SD cardreader with a special file on the card to your phone) or use SLSPL (a way to unlock the SPL version so you can overwrite it with a lower SPL from any old stock ROM). The instructions for both approaches are available on the Dev&Hacking sub-forum.
Click to expand...
Click to collapse
thanks....let me take a look

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