[HD7 Q&A, Help & Troubleshooting] silek65:
Hello guys,

After more than a week of non-stop reading and trying to fix my problem I decided to register here on XDA Forum and ask you guys for help.

I'm wonder if there is a solution for problem I have with HD7 and of course to confirm if I'm right...

Maybe it's very simple to fix, but I don't know how and because it's my first broken phone for +10 years I spent so much time trying to fix it.

Okey so let's stary short story about my phone... I bought HTC HD7 phone in ~Jan/Feb 2012. From that time I flashed it many times with custom roms and used RSPL/HSPL - no Goldcard and service Jtag.

Anyway there was something wrong with that phone - not really know what, but with

no reason and randomly its software hangs and after reboot loose all data

- this happen to me few times before. (I bought it brand new).

And now 8 days ago this "Memory Loss" trick happens again. But this time, there was no way to initialize system again - I mean OS startup and displayed some first initialization steps, but... wait a second: "Low storage memory" message appears. So I see memory card was not recognized and in about it shows 13MB of Total space and 0MB free. So I started researching and reading and of course from beginning I expected that microSD card is damaged.

This tooks me 8 days and my rooms now looks like, so please guys help me :)

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IMAGE LINK: goo.gl/Avf1o

... and problem still not fixed :rolleyes:

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1) I spent few days on downloading recommended software by users with similar problem to mine - Format SD card issue after WP7 (used on a PC, laptop...)

- ..and also I reflashed my old HTC G1 to get more disk tools bundled into FW and tried from basic DD wipe these protected cards...

Status: No success. (I didn't knew before how SD Protection really works...)

2) I found out on Microsoft website note about WP7 and SD cards. (everyone should read):

MS WP7 SD Memory: goo.gl/LMQ2l

:highfive: High five for Microsoft - I believe people now complain how Microsoft sucks is because of use protected area of SD cards in new phone OS and I guess they complain exactly the same when Microsoft is not secure enough... :silly:

Okey so I found great short list of devices that support

Protected Area

of SD cards and are able to format it/erease them. There was highly recommended (and I agree too) to use Nokia phone on Symbian - FAST AND 100% WORKING. Unfortunately a friend with N95 could bring me that phone at next one day and it was morning, so I was looking and trying other devices...

Status: (broken?) microSD not recognized by Nokia 6600.

Next day status: (broken?) microSD after 3 errors successfully and quick formatted. Double checked, wiped and looks like it works fine. Thanks to Symbian and Nokia N95 o_O

NOTE FOR EVERYONE who has a problem with protected SD after WP7/8 and it's not visible anywhere (PC, WP7/8):

GO AND GET NOKIA WITH SYMBIAN AND DON'T WASTE TIME!

3) I installed back to the phone 8GB SanDisk microSD card freshly formatted in N95 and then on PC to FAT32 Primary partition with cluster size 4 and 8KB, but the card was still not recognized. Not even touched... I used for test other 2GB and 4GB one but I was thinking that maybe these are smaller and maybe too old so not compatible. However the 4GB one was 2nd class card.

4) I listen to someone's who wrote on a forum: "go and buy new one it must be working". So I bought one - SanDisk, model exactly the same mentioned by a user who successfully fix microSD WP7 issue.

Status: brand new microSD not recognized.

5) And now is a time for ONE of TWO BEST jokes on XDA I found. It's: RUU_Schubert_XBMOD_V1.01

I spent more than 2 days trying to flashing this ROM with different Radios and trying to update HD7 with the StorageLock.cab

But how to send anything to device with not enough space and with the ROM that brings huge space around 3MB?! ...and the words of another genius guy who say that this method works 100%. And to be sure do this from Goldcard (not explained what).

6) So I made a Y-cable like connector - used two USB ports from some old USB-hub and power source from the same dismounted little bit USB Hub. Connector looks like a USB in a condom:

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IMAGE LINK: goo.gl/9C98o

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7) CID I read using my old BlueAngel/QTEK 9090/MDA III Pocket PC device running Windows Mobile 6.5 - custom from XDA of course ;]

8) When Goldcard was ready and S58 cleared I used it to flash XBMOD ROM as mentioned. No way to update it with that Cab. It was hanging at next reboot after applied .cab.

9) So I decided to mod this ROM little bit and cut it from Office and other things and include app in it. I'm not sure I've done it okey, but when I run Storage Lock, the app starts, notified me that SD card is unlocked. And asked to lock it? When I choosed Yes the Fail message appears.

So still not working...

If someone would to use lite XBMOD with bundled StorageLock inside the ROM as System part:

DOWNLOAD XBMOD w/ StorageLock included-----------

LINK: goo.gl/mpkP0

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10) And even I listen to this stupid and unbelievable idea that back cover with WiFi antenna needs to be properly installed - otherwise SD card will not be detected - I made fake one for tests and I added additional 3 Ohms resistor to make more real if there is installed some measure software...

Still nothing.

11) I flashed many ROMS through DIAG mode and classic method (Vol-Down + Power) - and I didn't get back my SD card recognized.

Here is a list of FW I tried:

Deepshining Tango v7.75 15 Langs\
Deepshining v7.8 Nokia Love\
Dynamics7_HD7_1_21_Western\
HTC_HD7_T9292_Europe_ROM_1.16.401.01_OS_7.0.7004.0_FW_2250.09.11601.401_RA_5.51.09.06a_22.30.50.09U_BL_1.16.2250.0(110866)\
HTC_HD7_T9292_Europe_ROM_1.23.401.02_OS_7.0.7004.0_RA_5.51.09.06a_22.3050.09\
HTC_HD7_T9292_Europe_ROM_1.60.401.01_OS_7.0.7004.0_FW_2250.09.16001.401_RA_5.52.09.16_22.33a.50.10U_BL_1.60.2250.0(114364)\
HTC_HD7_T9292_Europe_ROM_1.69.401.01_OS_7.0.7389.0_FW_2250.09.16901.401_RA_5.54.09.21_22.33b.50.10U_BL_1.69.2250.0(117833)\
HTC_HD7_T9292_Europe_ROM_4.05.401.02_OS_7.10.7720.68_FW_2250.21.40502.401_RA_5.69.09.29a_22.50.50.21U_BL_4.5.2250.0(129185)\
HTC_HD7_T9292_Europe_ROM_5.10.401.04_OS_7.10.7720.68_FW_2250.21.51004.401_RA_5.71.09.02a_22.51.50.21U_BL_5.10.2250.0(132968)\
RUU_Schubert_HTC_Europe_1.16.401.01_Radio_5.51.09.06a_22.30.50.09_Signed_SCHUBERT_RELEASE\
RUU_Schubert_HTC_Europe_1.60.401.01_Radio_5.52.09.16_22.33a.50.10_Signed_SCHUBERT_RELEASE\
RUU_Schubert_HTC_Europe_1.69.401.01_Radio_5.54.09.21_22.33b.50.10_Signed_SCHUBERT_RELEASE\
RUU_Schubert_HTC_Europe_1.69.401.02_Radio_5.54.09.21_22.33b.50.10_NoDo_custom_by_ansar\
RUU_Schubert_HTC_Europe_5.12.401.06_Radio_5.71.09.02a_22.51.50.21U_NT_Tango_8779_18L_by_ansar\
RUU_Schubert_Radio_5.66.09.21a_22.48.50.21_custom_by_ansar\
RUU_Schubert_XBMOD_V1.01\
Schubert_Europe_1.69.401.01_Radio_5.54.09.21_22.33b.50.10U\

12) The only one interesting and different was that ROM:

HTC_HD7_T9292_Europe_ROM_1.16.401.01_OS_7.0.7004.0_FW_2250.09.11601.401_RA_5.51.09.06a_22.30.50.09U_BL_1.16.2250.0(110866)

== RUU_Schubert_HTC_Europe_1.16.401.01_Radio_5.51.09.06a_22.30.50.09_Signed_SCHUBERT_RELEASE

In the initialize point after Windows Phone boots it appears message that files are corrupted and phone must be rebooted. But I tried it 20 times and still the same.

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IMAGE LINK: CRC AFTER THIS ROM FLASH: goo.gl/Wrz5V

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IMAGE LINK: HSPL NORMAL STATE: goo.gl/4D3x3

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13) But what was interesting for me from the beginning and I saw that when I made Goldcard and enter into Host Diag mode...

PVK No: Read failed.

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IMAGE LINK: goo.gl/MMpwY

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And now I would like to ask some questions... And please bring all ideas you have... Thank you!

Q1] How device PVK can be loosed?

Q2] How to restore or generate correct one device PVK key and finally how to apply it?

Q3] Missing device PVK key cause SD card initalization (I think yes.)?

Q4] Is it possible to prepare ROM wich will include in the system all these StorageLock, StorageFullTool, and other HTC test tools? Let's say a very lite ROM with basics and tools to manage the unit that will work without inserted SD card? Is it possible to cook ROM like that? Any ROM Maestro can do this?

Thank you!!!!!!

Have a nice day!