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[Q] Which HD7 ROM, Radio and Bootloader?

After discovering I cant really do anything with the Chevron Labs unlock ive decided to try and downgrade my bootloader and flash a ROM with the interop Unlock and i have no idea where to begin
I currently have Mango RTM with the 5.0.2250 bootloader and Radio version 5.69.09. My question is how exactly do i downgrade my boot loader to a usable version and which radio do i need for Australia?
Any help would be great

[Q] Downgrade HTC HD7 from 7740

Hello everybody,
Last week I bought a HTC HD7 via ebay. After unboxing it I connected it to my laptop and installed Zune. Zune said that an update is available, so I downloaded and installed it (now I have no recovery point).
As I am very interested in developing and want to have the possibility to modify the device as I want, I wanted to unlock it.
Because I am not already 18 years old, I can't buy a token for ChevronWP7 to unlock it. Normally, students can get free unlocking through DreamSparks, but I live in Germany and neither have an ISIC card nor a .edu-E-Mail-Adress.
So I have to downgrade my HD7 (Ver. 7.10.7740; SPL 5.10.2250.0) to unlock it with the free version of ChevronWP7 for older WP7 versions.
I tried all known methods to downgrade but it didn't work for me.
I can't flash another ROM, the utility says 'Flash Write Error' and I can't restore it, because I haven't made a backup before updating.
The DFT-Tool doesn't work with SPL 5.xx.
Now, I can't downgrade my WP7-Version and my bootloader version.
Is there any possibility for me to unlock my HD7?
Here are some extra informations about my HD7:
Model: HTC HD7 T9292
OS version: 7.10.7740.16
Firmware revision number: 2250.21.51002.207
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(131983)
As I am a german student, I have to excuse me for my bad english

check this out http://forum.xda-developers.com/showthread.php?t=1196183

[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] Messed up bootloader on my trophy!

So I have been spying here on xda a few months now since I got my trophy off ebay. There are custom roms here that I wanted to try so I followed guides to RSPL and HSPL. So I HSPL'd my trophy and installed ansars unbranded trophy rom with 1.09 this worked and got my bootloader replaced by 1.09 instead of HSPL.
Then I had problems with the marketplace giving me errors so I had to revert back to my original rom which was DE so I flashed it straight to the phone without HSPL. Now the rom installed fine, only my bootloader now says:
ÇÊÀ-|Eï SS-BC (4K)
SPL-1.9.2250.0(109882)
MicroP(LED) 0x09
TOUCH A19v10,20)
What I believe is that ÇÊÀ-|Eï should say PC40100.
Now I cannot install the stock rom or any other rom, or even hspl as it gives out vender/model id error. I have tried goldcard with the trophy but it gets stuck at "checking".
Can anyone help me?
Willing to donate to the person who can help me.

The only fix I know of for that state is to install a stock bootloader update. You might be able to find one in the CAB list thread on the dev&hacking sub-forum, or you may just need to wait. I've only seen it reported once before, but an official bootloader update fixed it (of course, you'll need to downgrade the bootloader again).

[Q] HtcDev error 190???

Hi guys, sorry if this has been answered before but i have spent over an hour looking for an answer with no luck.
Im trying to unlock bootloader (using HTCDev method) on a UK ChaCha running on Android 2.3.5 software number 1.57.61.2.
I have the correct RUU (orange UK) from the HTCdev site but get error 190 when trying to flash it. it tells me it wants to update to 1.57.0.0 but to do that i have to upgrade to 1.57.61.1.
Can some one please point me in the right direction here as i have tried a fix where flashing PG76IMG is supposed to work but im not given the update option in bootloader.
This will (hopefully) be the 3rd HTC i will have flashed custom roms etc (had an HD2 and just done my Sensation) but somehow this ChaCha is beating me at the moment. HELP!!!

Just skip that step. I had latest version installed and htcdev official didn't have ruu for unlocking that version (I had 1.54.401.3 but they only had ruu for 1.54.401.2 and since I didn't want to downgrade I just moved to the next step and unlocked bootloader without an issue).