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[Q] Switch between OS on HD2 / uninstalling froyo 2.2 from hd2

Hi,
I am new to this forum. sorry if i repeat the question but I tried looking all over and I could not find any answer for my question, which is as follows...
1. If I experiment froyo 2.2 on my HTC HD2, how do i swith to and forth between Android (froyo 2.2) OS and Windows Mobile OS. Is it easy to do so?
2. If I don't like froyo running on my HTC HD2 because of technical difficulty, how do I switch back to original HD2 operating system, like I never tried Froyo installation (in other words - how do i completely uninstall froyo from the device)?
Sorry if I repeated the questions, but, again as I said, I could not found it on the forum.
Thanks

It actually just runs from the memory card so basically you just have to restart the phone, let it load windows mobile then delete the android mobile on the sd card. Below is the section for android roms basically just download and unzip to your sd card in an "Android" folder there might be more to it, but there is a thread with instructions too.
http://forum.xda-developers.com/forumdisplay.php?f=735

I had the same question and searching for the answer has led me to your post. I understand that the Froyo system files reside on the SD card but I'd imagine some sort of startup file on the phone itself has to be modified to point the boot sequence to the SD card. Is that correct and if so, what file(s) is modified on the phone? More specifically, I'm researching the Froyo install and want to do it without any custom ROMs, just stock, but I'd like to make sure I can remove all traces should I need to send it in for warranty purposes.
abc12121, did you get any more information on this that you could share? Can anybody else explain what, if anything, is modified on the phone to point to the Froyo install on the SD card? Or how the boot process works?
Thanks!

Superram Froyo not loading
I recently installed Superram Froyo from Darkstone on my HD2. It worked absolutely great for a day. Then all of a sudden, it stopped loading. I tried to repeat the process of booting but all it does is shows the green HTC logo and then the screen goes dark...and stay that way. Any advice or help is appreciated since I was begining to really enjoy it.
Regards

[Q] HTC Touch diamond - Fully working Android version wanted.

Hi all,
I am not starting this thread without doing my research.
I have installed few android versions (some will install and some won't). And the one I was able to install were not fully functional. They were either alpha or beta versions.
I can do with either 2.1, 2.2 or 2.3.
Can someone please tell me if there is a version out there that I can install and work perfect or near perfect on my HTC Touch Diamond?
I have been trying to search this forum and everytime I come accross a perfect version, it won't load on my phone. I am not sure what am I missing.
Hope someone understand where I am coming from.
I can describe where I am getting stuck etc as well.
Cheers
SB

stuck
I have just installed FroyoBV6
1. my device is: HTC Diamond
2. I'm using kernel: Default from Froyo B-V6
3. I'm using Ver: Froyo B-V6
4. the problem is: my phone is not going past the initital animation. I have rebooted and ran Haret.exe several times now.
Any ideas..????

I want a version that can let me use -
- WiFi
- 3G
- Camera
- 2G
- Market
- downloading on my SD card...
- GPS/Google map
Anyone who has tested or is still using anything similar to this on their HTC touch Diamond, please let me know...

Have either of you checked out this thread for known issues?
http://forum.xda-developers.com/showthread.php?t=1178546

A Small Query Regarding Andriod Installation on HTC Touch Diamond
Hi All,
I have a small query.
I am trying to install Andriod on my HTC touch diamond after reading from threads, the query is that where exactly i have to dump the extracted files. what is meant by "Internal storage"
If i place it in Internal storage i.e the 4GB one and try to run "haret.exe" its says that "cauld not read trailer"
and if i am trying to place it in the root folder i.e "my device" in parallel to "windows", "program file" etc its says not enough disk space. when i checked the memory available its less and data is larger... and just to be clear that HTC is not having data i already did a hard reset and removed my all data.
can you please help me.
Thanks!!!

small problem
i downloaded xdandroid for htc touch diamond...but while booting it shows "cannot find rootfx file on sd card,extracrt it"
but when i try to extract in mobile r laptop it shows...operation failed,i used many software to extract but no use...
pls tell me how to extract it...??
thanks..

[Q] villainROM 13 app2sd

Hello there!
i just flashed my hero with the villainROM 13. and its simply amazing!
but, its 2.1, so i guess i cant install the app2sd app.
can anyone teach me this deal with partitioning the sdcard?
"Dalvik2SD - For use with A2SD (Fast SD only)"
i tried some random numbers via the recovery, and after, it told me i had 100+megs free phonespace, but everytime i try to install an app, it says i dont have any space available.
so, any learned men\women out there who can help a newbie?
thanks
whiteshade

[Q] Q: Dorinmax ROM, CMW 7, work perfectly, but problem with Market.

Hello, I am a newbie to this forum, but I have already read many posts before making my first thread. I have HTC HD2 (LEO), I have installed NAND Android (dorinmax ROM) with CWM 7, it works perfectly, the system is stable. I made it with SWAP & with SD EXT partition 1GB, no issue till then. But I have problem with market, I get error "Error downloading "Angry birds" there is insufficient space on the device" everytime I try to download and install ap bigger then 2.5 MB, so I am really confused, I have read all possible themes about it, like coding in terminal, wiping cache or Davlik cache and others. also I tried to install marketfix (didn't help). So I have tried all possible options except downgrading Market (but I don;t know how, mine is 3.4 already installed with dorinmax latest ROM). So someone, please help with us. Thank all of you in advance. I would be appreciated if devepoler of dorinmax ROM will answer & help to asssist. Cheers!

Hey guys, aren anybody concerned about it. I downloaded & installed this android for many apps! and what I get - market that doesn't work. it took me 5 hours to do that. and know I understand that new version of this google market doesn't work and they have no solution. I'll donate a small sum for those developer who will help me fix this or downgrade my market so it will work again.
http://forum.xda-developers.com/showthread.php?t=1231358
This thread doesn't help, I tried to install old market with ADB, but it writes that there is an error, unable to find root or patch. SO, PLEASE HELP!

HTC HD7 MANUAL TANGO problem

Hello guys i have a problem with my HTC HD7...i install the 8112 update then 8773 with languages ( from here http://forum.xda-developers.com/showpost.php?p=27960331&postcount=929 ) but without a backup ... "C:/ no space" and all goes right.. but when the phone was on the start screen and go to settings: "wifi, emails+accounts, messaging, about phone" - doesn't work
I tried to install O2-DE ROM's ( from here http://forum.xda-developers.com/showthread.php?t=1000467 ) and i get the [226] error - flash write , i tried to install a DFT ROM but SPL-5x.. and doesn't support it... please guys i am new in ROM's and stuff's and i am really desperate and don't know what to do to fix my phone.. if you can send me a good custom ROM or someone who fixed the [266] error please help.. and just in case if someone has a mango BACKUP and it can be send... via link that would be awesome
Thanx
Sorry for bad english.

Why did you start a new thread for this? This should be part of the CAB Update thread.
Your problem is very obvious if you just read the instructions for CAB updating. You needed to send the language packs along with your OS update. Language packs are in their own CAB files, but can be sent at the same time as the update CAB. There are instructions for figuring out which ones you need to send.
You're messing with things here that can really screw up your phone, much worse than it is now. *ALWAYS* read the instructions first. Read what problems others have had, and how they fixed them. Follow the steps, don't cut corners.
That said, if you really want to install a custom ROM, this is possible. You'll need a GoldCard, which is to say a USB Mass Storage device like a SD card or a flashdrive with a special file on it, plus some way to connect it directly to your phone and power the device at the same time (typically a USB Y-cable). There are full instructions, with links to parts and pictures of how to set it up, available on this forum. That will let you downgrade your bootloader version so you can install HSPL.

Phone status: Updated
Problem solved, finally i upgraded my HTC HD7 to 8773 by reinstall the 8112, 8773 again +languages and it worked
-So for those who think that their phones are lost (Walshed) repeat this step 1-2 times