How to downgrade from post NoDo 7092 (to Developer Unlock a device) - Trophy General

Hi,
If you have updated your Windows Phone to the 7090 NoDo ROM, you need to downgrade your ROM to Pre-NoDo via Zune (restore) to be able to unlock your phone with ChevronUnlocker.
But if you have updated to 7092 (after NoDo), if you restore your phone Zune downgrades your ROM to NoDo 7090 and doesn't allow you to downgrade to previous versions. So in this case you can't unlock on NoDo.
There is a solution to downgrade to 7004 rom, but it's for the advanced users. Doing this can brick your phone and avoid your warranty.
So, for advanced users who want to downgrade to be able to chevron unlock their Windows Phone, you need to download the initial ROM for your device (be careful to download the correct one if it's a branded device).
These ROMs can be downloaded in this forum (threads from "ansar", different threads for each device).
After flashing this ROM, you are on the 7004 ROM.
You lose all your personal data that is not synced with your Windows Live account.
Then, unlock the phone, and apply the xap that keep the phone unlocked (to not relock automatically).
Finally you can update your phone to NoDo and after NoDo (7092) with Zune.
EDIT : I've posted in the wrong section, I will be happy if a moderator moves the thread to the "Windows Phone 7 Development and Hacking" section.

Related

Downgrade to No-Do problem

Hi,
I try to downgrade from Mango to Nodo but I have a problem:
When running restore.bat the batch file keeps saying that I dont have zune 4.8 installed ... but I did .... I de-installed and re-installed again ... but no luck ...
Suggestions ?
btw I used:
http://windowsphonehacker.com/articles/get_the_mango_update_now._without_being_a_developer.-06-30-11
I think I have the same problem. I have a US Verizon HTC Trophy updated now to Mango 7720 and I'm looking to restore it back to NoDo.
I used the method posted on windowsphonehacker (How to get Mango Beta 2 for non-developers) to update my phone 7712.
It made a backup for me which is in my C drive folder.
Then I recently updated my phone from 7712 to 7720 with the Mango RTM flash that was just released.
So I wanted to see if I could restore back to Nodo and I'm running into problems.
With Zune 4.8 installed, I ran the restore.bat file from the windowsphonehacker post and it said that the version of the windows phone update tool did not match Zune. So I unintalled Zune 4.8, re installed the original Zune 4.7 and ran the restore.bat again. This time, it runs but says "No restore point found."
Anyone have any ideas? If not, is there a stable Verizon US Nodo ROM I can flash to my phone?
Thanks.
Step away from the phone...
I have a similar problem. I successfully updated my Trophy to the first Mango beta, but I'm having a slew of issues getting it up to the latest (final?) Mango release. I can't seem to restore back to anything below 7401... and I'm afraid I won't get the official release in September. I'm generally down a rabbit hole and would just prefer to flash and get back to 7932 as if none of this ever happened.
Any advice for a noob would be appreciated.
thx
Hi, must turn off ur phone n switch to 3 colour page
downgrade problem
Yeah, I did that. It wouldn't flash the phone correctly.... maybe I had the wrong ROM. If anyone can point me to the Verizon Trophy 7392 US ROM I would appreciate it.
666todd666 said:
Yeah, I did that. It wouldn't flash the phone correctly.... maybe I had the wrong ROM. If anyone can point me to the Verizon Trophy 7392 US ROM I would appreciate it.
Click to expand...
Click to collapse
My understanding is that you will not be able to accomplish your task. The multi-color screen on the Verizon Trophy does not allow loading of ROMs since it cannot be unlock. Unless I am misunderstanding this. Shouldn't you be able to restore to a previous point in the Zune software?

[Q] prepare Developer unlock Nodo For mango?

hey guys can someone do a guide to prepare a developer unlocked nodo for mango? since tomorrow is the update form most of us this would be kinda cool!
thanks!!!
if it's a legit dev unlock (as in you paid $99) there should be no issue with the update, just plug in to zune and that should be it.
if it's a chevron unlock, as long as you have the ability to deploy the provxml's from your phone you should be able to retain your unlock.
i'm going to guess that the process will be very similar to the way it is done with with getting the leaked RTM running and retaining an unlock.
The provxml method doesn't working
Did someone got unlocked Focus with chevron unlock on mango?
follower90 said:
The provxml method doesn't working
Did someone got unlocked Focus with chevron unlock on mango?
Click to expand...
Click to collapse
I think you got it wrong.
Once in NoDo or later, no unlocking is possible.
To get unlocked you have to be in pre-NoDo state, more exactly 7004 or 7008.
There, you can unlock with Chevron, update to NoDo.
Then, apply provxml and update to Mango. You apply provxml to keep the unlock, not to unlock...
Yesterday I tried to save unlock with provxml method on Mango.. But it's failed(
So I restored to 7008, then unlocked my phone.. and got NODO update.
Now I have Chevron unlocked NODO (7392)
I think when I'll try to update on Mango, unlock will remain...
Hope for your help
and as I remember, Chevron works on 7392, or not?
Read this thread, it contains all you need.
Wow, it's working!
Thanks you, and XDA forum)

[Q] Help unlocking / rolling back

Hi,
I have an HTC Trophy that's been updated to Mango (through Zune...) and I have been trying for ages to Unlock it. From what I understood I have to roll back to a NODO (or 7004 version), and then either unlock or install HSPL + custom ROM - But I cant figure out how to roll back - when I try to roll back to NODO I get an error.
And by the way I cannot restore the phone from my computer because I have a new computer, and I cant figure out how to restore from the phone (it doesnt show up under update)
Can anyone help me?
Thanks,
-Gabi-
salonluden said:
Hi,
I have an HTC Trophy that's been updated to Mango (through Zune...) and I have been trying for ages to Unlock it. From what I understood I have to roll back to a NODO (or 7004 version), and then either unlock or install HSPL + custom ROM - But I cant figure out how to roll back - when I try to roll back to NODO I get an error.
And by the way I cannot restore the phone from my computer because I have a new computer, and I cant figure out how to restore from the phone (it doesnt show up under update)
Can anyone help me?
Thanks,
-Gabi-
Click to expand...
Click to collapse
What is your current bootloader version? What error do you get? What nodo ROM do you use to flash? What is your current firmware version?
If you have bootloader 5.** there is no way of flashing an older ROM, you'll have to wait for a compatible RSPL/HSPL.
The last three numbers in your firmware version(for example 401 is a EU unbranded ROM, 172 is for Vodafone NL branded) should be the same as the first pare of three in your ROM description.
Step-by-step:
1. flash a nodo ROM
2. install RSPL, and optional HSPL
3. flash custom ROM
Also try entering the bootloader before you connect your phone to your pc.
Don't know if you have been monitoring this thread or not, but ChevronLabs was just realeased and for 9 dollars you can get the developer unlock found here: http://labs.chevronwp7.com/
as for completely unlocking it (Interop unlock) you have to follow these steps
http://forum.xda-developers.com/showthread.php?t=1271963
but be very careful, I did it with my HTC trophy and now I am stuck without 3G connectivity and have been trying for hours to restore it

HTC Surround OEM cabs

Hey I just wanted to share the (2) OEM updates for the Surround.
1st was included with the 7392 update:
http://download.windowsupdate.com/m..._e9a01966f3fe897b61f9f0712b2746adb067bfd1.cab
Brings the following up to:
Firmware revision # 2250.21.15204.502
Radio software version 5.66.09.09_22.46.50.21H
Bootloader version 1.5.2.2250.4
2nd was included with the 7720 update:
http://download.windowsupdate.com/m..._9dc85b25de5f2e11d7649ce4fbc0a30a6918fab9.cab
Brings the following up to:
Firmware revision # 2250.21.40300.502
Radio software version 5.69.09.05a_22.50.50.21H
Bootloader version 4.3.2.2250.0
I traced these earlier using wireshark, enjoy!
donjulio0088 said:
Hey I just wanted to share the (2) OEM updates for the Surround.
1st was included with the 7392 update:
http://download.windowsupdate.com/m..._e9a01966f3fe897b61f9f0712b2746adb067bfd1.cab
Brings the following up to:
Firmware revision # 2250.21.15204.502
Radio software version 5.66.09.09_22.46.50.21H
Bootloader version 1.5.2.2250.4
2nd was included with the 7720 update:
http://download.windowsupdate.com/m..._9dc85b25de5f2e11d7649ce4fbc0a30a6918fab9.cab
Brings the following up to:
Firmware revision # 2250.21.40300.502
Radio software version 5.69.09.05a_22.50.50.21H
Bootloader version 4.3.2.2250.0
I traced these earlier using wireshark, enjoy!
Click to expand...
Click to collapse
Hmm, my Surround is running different Firmware and Bootloader versions:
Firmware: 2250.21.40500.502
Bootloader: 4.5.2250.0(129685)
Running Mango OS: 7.10.7720.68 - No forced updates.
I am not sure why yours are different, I flashed a pre-NODO AT&T ROM to the device and I let Zune take it from there all the way to 7720. This is what was downloaded and installed to my Surround. I already downloaded those cabs manually and applied them to my wife's phone with no issues via cab sender. She missed the OEM updates alnog the way somehow.
Dunno. Purchased on launch day, and stock all the way. I did have the Beta 1&2 versions of Mango on my device (Developer Unlocked), but did a hard reset just before updating to the official Mango. No updates since then, although I did get three updates that day; pre-Mango cleanup, Mango and HTC firmware.
jimski said:
Dunno. Purchased on launch day, and stock all the way. I did have the Beta 1&2 versions of Mango on my device (Developer Unlocked), but did a hard reset just before updating to the official Mango. No updates since then, although I did get three updates that day; pre-Mango cleanup, Mango and HTC firmware.
Click to expand...
Click to collapse
jimski, I think you just explained why yours are different. You applied the beta versions of Mango to your phone which altered the "stock" ROM you had on your device. I had the same versions as your phone before I reflashed to stock and allowed Zune to do all the work this time. Even though you had a pre mango cleanup your ROM wasn't noticed as stock anymore. Anyone that has never applied the beta mango on their AT&T device and is up to todays specs please post what versions you have compared to those listed above. Thanks!
donjulio0088 said:
jimski, I think you just explained why yours are different. You applied the beta versions of Mango to your phone which altered the "stock" ROM you had on your device. I had the same versions as your phone before I reflashed to stock and allowed Zune to do all the work this time. Even though you had a pre mango cleanup your ROM wasn't noticed as stock anymore. Anyone that has never applied the beta mango on their AT&T device and is up to todays specs please post what versions you have compared to those listed above. Thanks!
Click to expand...
Click to collapse
Actually, his firmware and bootloader version are the same as mine, and I haven't tampered with my phone at all. Our firmware and bootloader versions are newer than yours. There's something wrong. By the way, do you by any chance use a Zune subscription?? The HTC Surround has been locking up while playing songs on battery power ever since the Mango Update.
israel.lopez217 said:
Actually, his firmware and bootloader version are the same as mine, and I haven't tampered with my phone at all. Our firmware and bootloader versions are newer than yours. There's something wrong. By the way, do you by any chance use a Zune subscription?? The HTC Surround has been locking up while playing songs on battery power ever since the Mango Update.
Click to expand...
Click to collapse
I dont subscribe to the Zune service. However I did state that I had the same versions as you before I recently reflashed the stock AT&T ROM and let Zune do all the updating. Now I wonder why the current updates dont match the older updates. P.S. My phone performs much better with these lower versions that I now have compared to the versions that I had before(which you currently have). No lockups, no hesitations, no restarts. Everything has been flawless since reflashing and reupdating.
I did experience lockups (alarm bug), restarts, and quirky volume changes when plugging anything into the 3.5m jack literally from the day I got my Surround (on launch day), and through the NoDo update. After NoDo, without any noticable bug improvements, I did my first hard reset (last March) and all the issues dissapeared. I wrote it off as something getting screwed up during manufacture, although the underlying ROM seemed to be fine. You might be experiencing the same thing with your recent stock ATT ROM flash. Did you try a hard reset prior to flashing?
BTW, for israel.lopez217, I do have Zune Pass, but don't stream music very often. Been playing streamed tracks for the past 20 minutes though (5 or 6 so far) and no lockups. On battery, and the screen is sleeping.
How to install the CABs
Please, can you tell me how to install the CABs, I tried copying the cabs on the "WP7 Update Cab Sender" folder and then launch the bat file, but the tools states: Error: No update files.
Thanks.
dach said:
Please, can you tell me how to install the CABs, I tried copying the cabs on the "WP7 Update Cab Sender" folder and then launch the bat file, but the tools states: Error: No update files.
Thanks.
Click to expand...
Click to collapse
Please read this thread, it explains everything.
http://forum.xda-developers.com/showthread.php?t=1306415
SOLVED Error: No updates files
dach said:
Please, can you tell me how to install the CABs, I tried copying the cabs on the "WP7 Update Cab Sender" folder and then launch the bat file, but the tools states: Error: No update files.
Thanks.
Click to expand...
Click to collapse
The problem was that I was right clicking the BAT file then Run as Admin, for it to work I had to open an elevated command prompt (run as admin) and then launch the BAT file from the cmd.
Hope this helps someone.
I'm not able to use the second cab to update the bootloader to version 4.3.2.2250.0 with the NT cab provided by Ansar for HTC Surround. It goes through the entire procedure and then gives an error msg at the end, saying that the update was unsuccessful.
mangojain said:
I'm not able to use the second cab to update the bootloader to version 4.3.2.2250.0 with the NT cab provided by Ansar for HTC Surround. It goes through the entire procedure and then gives an error msg at the end, saying that the update was unsuccessful.
Click to expand...
Click to collapse
I think you misunderstood what OEM meant. You need to check with Ansar about updating his ROM.
I am not allowed to post on the development forum yet, else i would ask Ansar there. Hope he reads these posts too. Updating the bootloader is hardly important, but i wish he would provide a solution for Internet Sharing not working on his NT rom.
donjulio0088 - the 2nd cab updated my stock rom yesterday. any idea where i can lay my hands on a cab for the latest firmware (2250.21.40500.502 at least) . . . Zune is not showing any updates available . . . am really desperate for ICS, my broadband connection often goes down and with my Windows 6.5 device i used to have a fallback option.
mangojain said:
donjulio0088 - the 2nd cab updated my stock rom yesterday. any idea where i can lay my hands on a cab for the latest firmware (2250.21.40500.502 at least) . . . Zune is not showing any updates available . . . am really desperate for ICS, my broadband connection often goes down and with my Windows 6.5 device i used to have a fallback option.
Click to expand...
Click to collapse
Unfortunately I didn't get that one to my phone. I haven't seen anyone else post any other cabs for the Surround either. If you manage to locate please post your findings.
It is here somewhere in the forum, as I downloaded it. I will try to find it and post it.
donjulio0088 said:
Unfortunately I didn't get that one to my phone. I haven't seen anyone else post any other cabs for the Surround either. If you manage to locate please post your findings.
Click to expand...
Click to collapse
Yeah, I'm on 2250.21.40200.661 and would like to update it, too.
Sent from my A100 using Tapatalk
i m on 7713.wm7_main(DFT) rom when i connect to zune it says update is available from htc but m not able to update since in DFT zune update doesnt work....so can someone plz help how to update my phone via zune? or else how do i revert to stock rom so tht i can update my phone via zune.... plz helpme.

rollback

Hello!
Please help me unlock my phone...
I have an omnia 7 updated to tango and then I had the student dev unlock but I need to interop-unlock.
If I rollback to Mango using the Zune backup I think I would have to redo the dev unlock and then I should follow this:
http://forum.xda-developers.com/showthread.php?t=1271963
Is this right?
After the interop-unlock can I restore the backup to tango (to the current state) and still remain unlocked or do I have to upgrade manually?
Iaia

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