Downgrading my Z - G2 and Desire Z Q&A, Help & Troubleshooting

My desire Z is currently running android 2.2.1.
The downgrade tutorials i have found are from 1.74 to 1.34.
How do i get my phone to 1.74 so i can downgrade to 1.34?
Thanks

which version number are you currently running.
2.2.1 is the android version(a version of froyo)
the 1.74.xxx is the firmware number made by HTC and some may be 2.2.1 and have 1.74.xxx or like me have 1.84.xxx
since you are 2.2.1 you will most likely have to downgrade to a 1.34.xx rom
depending on your carrier you will need a RUU from them, example i have a bell Desire z so i would need a bell RUU. This can be found in one of the stickies near the end, i think its the sticky for roms and everything under development.
Extract the rom.zip from it as stated in the 1.74 to 1.34 downgrade guide. rename to "PC10IMG.zip" place this on the root of your sd card.
Get AMT(advance multi tools) [REMEMBER TO THANKS HIM HE IS AWESOME FOR MAKING THIS APP ] from the developer section and run the downgrade option. Reboot into your bootloader and apply the update voila ur downgraded now you can root or whatever you like.
WARNING: This worked for me i'm a Bell desire z user so it may differ for you and i take no responsibility if you follow this and mess up.
It worked for me so it may work for you if anyone sees a problem with this people speak up.

noob1015 said:
which version number are you currently running.
2.2.1 is the android version(a version of froyo)
the 1.74.xxx is the firmware number made by HTC and some may be 2.2.1 and have 1.74.xxx or like me have 1.84.xxx
since you are 2.2.1 you will most likely have to downgrade to a 1.34.xx rom
How do i check which firmware i am running?
And what do you mean download to a 1.34 rom? Do i need to get a rom to downgrade?
depending on your carrier you will need a RUU from them, example i have a bell Desire z so i would need a bell RUU. This can be found in one of the stickies near the end, i think its the sticky for roms and everything under development.
How do i find out what my carrier is?
Extract the rom.zip from it as stated in the 1.74 to 1.34 downgrade guide. rename to "PC10IMG.zip" place this on the root of your sd card.
Get AMT(advance multi tools) [REMEMBER TO THANKS HIM HE IS AWESOME FOR MAKING THIS APP ] from the developer section and run the downgrade option. Reboot into your bootloader and apply the update voila ur downgraded now you can root or whatever you like.
WARNING: This worked for me i'm a Bell desire z user so it may differ for you and i take no responsibility if you follow this and mess up.
It worked for me so it may work for you if anyone sees a problem with this people speak up.
Click to expand...
Click to collapse
Thanks for the info

In this tutorial:
http://forum.xda-developers.com/showthread.php?t=905261
im on step 11, but my phone didn't ask me to update. anyone know why?
thanks

How do i check which firmware i am running?
And what do you mean download to a 1.34 rom? Do i need to get a rom to downgrade?
Under settings> about phone is software information or something of the sort it will say 1.34.xxx, 1.74.xxx, or 1.84.xxx that is the firmware version. If its 1.34.xx you do not need to downgrade.
Also i ment 1.34.xxx RUU so you may extract the Rom.zip from it
How do i find out what my carrier is?
Your carrier is where you got your phone from such as bell, or t-mobile(G2), or other DZ sellers in europe (i do not know who sells them there)
if you got yours from tmobile the RUU from the guide u posted the link to is good. (follow that guides step 7 to extract the rom.zip from the RUU regardless of which RUU it is)
In this tutorial:
http://forum.xda-developers.com/showthread.php?t=905261
im on step 11, but my phone didn't ask me to update. anyone know why?
thanks
Did you rename the rom.zip file to PC10IMG.zip, is it already a zip file and you added .zip with the .zip extension automatically hidden by your computer (some computers automatically hide file extensions so really your files name is "PC10IMG.zip.zip" in which case delete the .zip you added. Is your CID one of the ones in that thread at the beginning if not its easier to follow the guide i posted above. Finally is the PC10IMG.zip file on the root directory of your sd card.

noob1015 said:
How do i check which firmware i am running?
And what do you mean download to a 1.34 rom? Do i need to get a rom to downgrade?
Under settings> about phone is software information or something of the sort it will say 1.34.xxx, 1.74.xxx, or 1.84.xxx that is the firmware version. If its 1.34.xx you do not need to downgrade.
Also i ment 1.34.xxx RUU so you may extract the Rom.zip from it
How do i find out what my carrier is?
Your carrier is where you got your phone from such as bell, or t-mobile(G2), or other DZ sellers in europe (i do not know who sells them there)
if you got yours from tmobile the RUU from the guide u posted the link to is good. (follow that guides step 7 to extract the rom.zip from the RUU regardless of which RUU it is)
In this tutorial:
http://forum.xda-developers.com/showthread.php?t=905261
im on step 11, but my phone didn't ask me to update. anyone know why?
thanks
Did you rename the rom.zip file to PC10IMG.zip, is it already a zip file and you added .zip with the .zip extension automatically hidden by your computer (some computers automatically hide file extensions so really your files name is "PC10IMG.zip.zip" in which case delete the .zip you added. Is your CID one of the ones in that thread at the beginning if not its easier to follow the guide i posted above. Finally is the PC10IMG.zip file on the root directory of your sd card.
Click to expand...
Click to collapse
In my software info, this is exactly what it says:
Android Version
2.2.1
...
Build Number
1.72.405.2.......
Software Number
1.72.405.2
I bought the phone from ebay, and the seller said it was from carphone warehouse...so what carrier would that be?
My CID is one of the ones listed.
i put the PC10IMG.zip in the home directory of the sd card. should i have put it in one of the folders? if my phone is not the tmobile one, should i find a different file? (RUU?) ie..the file PC10IMG.zip that i have is incorrect?

thanks a lot mate. the problem was the .zip.zip thing. im so annoyed. ive been stuck all weekend lol. thanks

^ lol ya i have seen that happen to alooooot of my friends that is why i have been starting to recommend people checking that out XD i really dislike it when windows tries making things more user friendly but takes away vital information for users who know what they are doing.... they should have a better setup asking what you want hidden and such ughhh.....

What about if the software number is 1.82.xxx.x?
Can I still use the following guide?
http://forum.xda-developers.com/showthread.php?t=905261
I tried before but it failed not sure if I did anything wrong or the method is just not compatible for my version.
Can anyone advise me on this?

NthZ said:
In this tutorial:
http://forum.xda-developers.com/showthread.php?t=905261
im on step 11, but my phone didn't ask me to update. anyone know why?
thanks
Click to expand...
Click to collapse
yes, i know.
i had the same problem.
you just have to download the original Image from the thread insted of using your own.
and you have to check that you got no error when typing /data/local/tmp/misc_version -s 1.33.405.5
i did the tut again and it worked for me ;D

Related

[Q] remove unrevoked3

so my phone's camera has sadly broken so i need to send it in for repair but how do i remove unrevoked's recovery so i can get it to stock
failers said:
so my phone's camera has sadly broken so i need to send it in for repair but how do i remove unrevoked's recovery so i can get it to stock
Click to expand...
Click to collapse
flash a original rom..i think it delete the unrevoked recovery
with kind regards..Alex
i have a similar predicament.
what steps are involved to flash an original rom?
does this mean putting the original PB31IMG.zip on the sd card and restarting? i've looked around quite a bit but can't find explicit steps/directions invovled.
No get hold of an RUU from your carrier or HTC and run that, it replaces your rom, radio, and recovery.
find and locate the desired rom here http://forum.xda-developers.com/showthread.php?t=695667
run the exe on computer and follow the steps .
job done
Thanks Ajthescot
From that list, which one is for the HTC/VZN Incredible?
I assume the first one under the CDMA section is ok? (RUU_Desire_C_Verizon_WWE_1.12.605.1_R_release_sign ed_with_driver.exe)
Also, I just found this before I saw your reply:
mydroidworld.com/forums/incredible-how-tos/4370-how-downgrade-back-1-00-radio-77-hboot-ota-s-off-only.html
Does that work too?
Correction - the software info screen on the phone says software number 1.22.605.2 so presumably I need to find an ruu exe for that one instead?
If your screen is SLCD you can't rebrand, it will break the screen.
thanks - not sure what that means to be honest. i guess the lesson is that i should not play with settings if i don't understand them. all i am trying to do is remove unrevoked3, which is the only thing i did to the phone.
can't seem to find straightforward directions (without abbreviations or special terms).
Hi I have 1 question,my speaker(loud speaker) on desire is dead!so I must go to official service,but there is the problem-previously I unroot my phone with unrevoked 3 and get custom gefrost rom!can you help me to get my phone in factory stock settings?my phone is from T-Mobile Montenegro,I didn't do backup and I dont know which of this rom is my official!?
HBOOT is 0.75 ,Bravo unknown ship s-on,and I put last radio 5.09.00.08
ues2005 said:
Thanks Ajthescot
From that list, which one is for the HTC/VZN Incredible?
I assume the first one under the CDMA section is ok? (RUU_Desire_C_Verizon_WWE_1.12.605.1_R_release_sign ed_with_driver.exe)
Also, I just found this before I saw your reply:
mydroidworld.com/forums/incredible-how-tos/4370-how-downgrade-back-1-00-radio-77-hboot-ota-s-off-only.html
Does that work too?
Click to expand...
Click to collapse
those files i linked were for desire not incredible
For what it's worth, I recently sold my desire and needed to do the same. I tried putting an original rom on from an exe and it failed. In the end I used the pb99img from the hboot downgrade thread, put it on the root of the memory card and did it that way which worked
Sent from my E10i using XDA App

[q] rom downgrade failed! Why? Need suggestion

Hi, I need your suggestions.
As in my sig below, My DZ is unrooted and is having Stock ROM 1.84.708.1 (via OTA), which is a Hongkong DZ (with Chinese Keyboard).
After long search and read all references here (XDA) and other forums, I finally decided to root my DZ.
I understand that my current version cannot be rooted.
So, as per references, I have to downgrade the ROM to lower version. Then, after search, I found this ROM v.1.34.708.3.
Then, as a preparation, I installed Android SDK, HTC Sync, and Created a GOLD CARD, its all done in accordance with instructions provided here various threads.
Then, I put the ZIP file from the older rom (1.34.) into the root of my GOLD CARD. Then I reboot my DZ into Bootloader. Then I start flashing.
After full process, it said that
"Update failed" rom is older...
Then, it automatically reboot and go back to the current one (1.84)
I need your suggestion and help because I really want to root my DZ.
Is there any way to downgrade it?
or Is there any way or tools to root it directly (without downgrade it) at this current version (1.84)?
If no positive solutions, then my DZ will be stuck in UNROOTED state forever
Thanks in advance, and cheers.....
silverwind said:
Hi, I need your suggestions.
As in my sig below, My DZ is unrooted and is having Stock ROM 1.84.708.1 (via OTA), which is a Hongkong DZ (with Chinese Keyboard).
After long search and read all references here (XDA) and other forums, I finally decided to root my DZ.
I understand that my current version cannot be rooted.
So, as per references, I have to downgrade the ROM to lower version. Then, after search, I found this ROM v.1.34.708.3.
Then, as a preparation, I installed Android SDK, HTC Sync, and Created a GOLD CARD, its all done in accordance with instructions provided here various threads.
Then, I put the ZIP file from the older rom (1.34.) into the root of my GOLD CARD. Then I reboot my DZ into Bootloader. Then I start flashing.
After full process, it said that
"Update failed" rom is older...
Then, it automatically reboot and go back to the current one (1.84)
I need your suggestion and help because I really want to root my DZ.
Is there any way to downgrade it?
or Is there any way or tools to root it directly (without downgrade it) at this current version (1.84)?
If no positive solutions, then my DZ will be stuck in UNROOTED state forever
Thanks in advance, and cheers.....
Click to expand...
Click to collapse
Hi !
The ""Update failed" rom is older..." indicates that you did not change the main version number in the misc_partition to a number lower then the one of the PC10IMG.zip that you are installing.
In the beginning of the rooting guide at http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Rooting_the_G2 there is a link to the downgrade thread for the DZ http://forum.xda-developers.com/showthread.php?t=905261.
In this thread there is also the instructions on how to set the main version using misc_version. You have to set it to 1.34.708.3 or lower.
have fun - Guhl
guhl99 said:
Hi !
The ""Update failed" rom is older..." indicates that you did not change the main version number in the misc_partition to a number lower then the one of the PC10IMG.zip that you are installing.
In the beginning of the rooting guide at http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Rooting_the_G2 there is a link to the downgrade thread for the DZ http://forum.xda-developers.com/showthread.php?t=905261.
In this thread there is also the instructions on how to set the main version using misc_version. You have to set it to 1.34.708.3 or lower.
have fun - Guhl
Click to expand...
Click to collapse
Hi,
Thank you very much...
I will try it again and report the result
Cheers

[Q] Downgrade from 1.84.666.2

I stupidly updated my Bell Desire Z to 1.84.666.2 the other day. Looking for a way to downgrade to a version that can be rooted.
Found this thread, but it's for a previous update.
http://forum.xda-developers.com/showthread.php?t=905261
Love this phone but I really want to dump Bell's extra software and Sense.
Please, any helpful input is appreciated!
How far through that guide did you get, what error message? I did 1.84 -> 1.34 to get S-OFF & root.
Following the tutorial got me temp root access but was unable to boot the firmware. I suppose I need to make a goldcard but that tutorial has a few broken links. Anyone want to give me a resource that explains what is going on in that tutorial a little more deeply? I remember reading in a previous forum that 1.8 update could be rolled back.
I'm on a Bell DZ too...
[J]
You will need a goldcard if you don't already have SuperCID via gfree, and you can't find an earlier ROM/RUU that matches your CID.
Sent from my HTC Vision using XDA Premium App
I'm getting stuck at step 11. I get to the white bootloader screen and without doing anything the phone does and SD check, looks for PC10DIAG.zip, etc, then finds PC10IMG.zip and checks it. Then I get bumped out to the bootloader list of FASTBOOT, RECOVERY, FACTORY RESET, SIMLOCK and IMAGE CRC.
It's unclear what to do from there. The tutorial says I'll get a prompt to update and restart, but I don't.
Also, the tutorial says I'll need a goldcard (which I created) but no where in the tutorial does it say what to do with it...
I got a goldcard using Gold Card Tool. Just do a google search of "easy goldcard".
I've managed to iron out that issue. I had made a mistake when making the goldcard.
Problem now is that when I get to step 11 the phone says "Model ID incorrect!" then "Update Fail!".
Any ideas?
Where are you getting your PC10IMG from?
From the guide I linked earlier. (http://forum.xda-developers.com/showthread.php?t=905261)
I downloaded the full RUU and renamed the extracted rom.zip.
I had goldcard issues (broken links) so I got the rom that matched my current region. I then did the temp root, modded the version info and let the phone try the update. Once I got it all sorted it worked as is said in the guide. I don't know if the goldcard tool worked or not, I think not as I wanted to change the Asian phone to WWE but had to go down to Asian 1.34 then go S-OFF and then go WWE. Maybe an extra step but it worked.
How do I find a rom that matches my current region?
The desire z was purchased from Bell Mobility in Canada and is now being used on Rogers.
This thread may be of help to you: http://forum.xda-developers.com/showthread.php?t=1029821
Thanks for that link! I basically did as the guy said and used the link to the 1.34.666.1 rom you linked in that thread. Only difference was I uploaded it to the SD and the issued the command adb reboot bootloader. This time no errors and the update worked!
So now I guess I just go ahead with a normal root of a 1.34.666.1 DZ?
Weird thing is the guy in that other thread said he got S-Off from doing this update... On my phone it's still S-On.
All you have done is put a rom on the phone that allows S-OFF, I can't see anyway you could get it in a stock rom?!
DVDWSN said:
Thanks for that link! I basically did as the guy said and used the link to the 1.34.666.1 rom you linked in that thread. Only difference was I uploaded it to the SD and the issued the command adb reboot bootloader. This time no errors and the update worked!
So now I guess I just go ahead with a normal root of a 1.34.666.1 DZ?
Weird thing is the guy in that other thread said he got S-Off from doing this update... On my phone it's still S-On.
Click to expand...
Click to collapse
You should now be able to follow this guide to get S-OFF (as above, I don't see how flashing a stock ROM would do this automatically): http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision
So after downgrading I had S-ON. But I just finished the rest of the rooting process in the guide I linked in my original post and got root!
What a process. That must have taken 12 hours or more. I should really post a new guide with more complete info.
Thanks for the help guys!
Now that I have root and S-Off downgrading from 1.84.666.2 to 1.34.666.1 using the processes DVDWSN did. Now I thought I could go back to 1.84.666.2 using OTA like I upgraded the first time. But when I try to do OTA, I get the message I do not have any new version. What gives?
If you are trying to downgrade do not touch OTA updates lol. Anyways, what you want to do is temp root your phone so you can 'spoof' the radio version the an old one thereby allowing you to flash a radio that can be manipulated. If you aren't sure what to do then try following this guide.

[Q][SOLVED] Manually upgrade to newer stock ROM?

I managed to unroot and back to stock 1.34 for my Desire Z in order to have warranty back to fix its shut down issue. But I found out that this version is different than the stock that I had when I bought it (I live in Vietnam so it has Vietnames language with higher version number 1.72 I think?).
So my question is can I manually upgrade it to newer version in shipped-roms . com ? If so then how?
If it cannot be done then does HTC support care whether my phone has the stock firmware for my region in order to have is repaired or just unroot S-On is ok?
Thanks
EDIT: I found about the RUU file, trying to update that way, will report back...
EDIT: Confirmed, just run the RUU.exe file and it will update to newer version!
kennytung said:
I managed to unroot and back to stock 1.34 for my Desire Z in order to have warranty back to fix its shut down issue. But I found out that this version is different than the stock that I had when I bought it (I live in Vietnam so it has Vietnames language with higher version number 1.72 I think?).
So my question is can I manually upgrade it to newer version in shipped-roms . com ? If so then how?
If it cannot be done then does HTC support care whether my phone has the stock firmware for my region in order to have is repaired or just unroot S-On is ok?
Thanks
EDIT: I found about the RUU file, trying to update that way, will report back...
EDIT: Confirmed, just run the RUU.exe file and it will update to newer version!
Click to expand...
Click to collapse
Thanks for sharing info..
How did you unroot it? Because I want to do it to
Any links will be appreciated...
Cheers
silverwind said:
Thanks for sharing info..
How did you unroot it? Because I want to do it to
Any links will be appreciated...
Cheers
Click to expand...
Click to collapse
I used this guide:
http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Returning_to_Stock
I used the same guide on this page to root using gfree, so on the first step, I just flash back the PC10IMG.zip that I used when rooting to get back to 1.34 stock and then proceed with next steps to unroot, lastly use this site:
http://shipped-roms.com/index.php?category=android&model=Vision
to get the newer version that I want and just run the .exe file with phone connected to my computer to update it to the version I want.
Glad I could help.
NOTE: This may work for me but may mess up your phone so be careful
EDIT: Sorry, my mistake, I use the root guide here http://forum.xda-developers.com/showthread.php?t=905261 but I believe it's the same as in the above link.
kennytung said:
I used this guide:
http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Returning_to_Stock
I used the same guide on this page to root using gfree, so on the first step, I just flash back the PC10IMG.zip that I used when rooting to get back to 1.34 stock and then proceed with next steps to unroot, lastly use this site:
http://shipped-roms.com/index.php?category=android&model=Vision
to get the newer version that I want and just run the .exe file with phone connected to my computer to update it to the version I want.
Glad I could help.
NOTE: This may work for me but may mess up your phone so be careful
EDIT: Sorry, my mistake, I use the root guide here http://forum.xda-developers.com/showthread.php?t=905261 but I believe it's the same as in the above link.
Click to expand...
Click to collapse
Thanks. I ll be careful. Dont worry
Those links were also used by me when I rooted my DZ. It should be easier for me. I just need to refresh my memory (he..he..)
Cheers

[Q] Downgrading bell dz 1.84.666.2

hey guys i was looking around and all this information is scattered into multiple threads and such. So i was wondering could anyone give me step by step instruction like get x file and follow y steps(even is said steps are from another post) because I am completely lost looking through 5 threads back and forth.
So far i followed the instructions of this guide(just got root): http://forum.xda-developers.com/showthread.php?t=905261
instead of using his RUU and PC10IMG i am using the one from this link: http://forum.xda-developers.com/showthread.php?t=815253
so if i extract the rom.zip from this file change its name to PC10IMG.zip and place it on the root of my sd card i don't need the gold card and can coninue normally with that guys guide?
Help would be appreciated.
also i will still be able to get back to stock even if i do this correct?
or how would i go about downgrading with AMT someone said that worked for them
Woops i figured it out sorry AMT is really easy i think i was misreading the instructions the first time...
If anyone else is wondering this get AMT 1.81 (or whatever there is) get the RUU from my first post. Extract the rom.zip explained later on in the other guide i linked in my second post.
Place the rom.zip (rename to PC10IMG.zip) in the root of you sd card. Run AMT and use its downgrading feature. Reboot into boot loader, and update.
This is for other newbie like myself who are having trouble downgrading their bell desire z. Obviously your doing it at your own risk and if anything goes wrong im not the person to go to.
How this helps some newbies out there.... i feel stupid for having so much trouble with this oh well better safe then sorry

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