[Q] Trying to downgrade to stock after HTC-Dev unlock... - Legend Q&A, Help & Troubleshooting

Hi,
Unlocked my wife's Legend using the HTC-Dev method. Installed CM7 and she was happy... Now she is missing the HTC weather animations and wants to go back to the stock Froyo.
I have the correct RUU for her phone, carrier, and region, extracted from:
RUU_Legend_BellMobility_WWE_2.02.666.3_Radio_47.37.35.09_7.08.35.05_release_130094_signed.exe
First I tried to flash by renaming the rom.zip to LEGEIMG.zip. The bootloader saw it and chewed on it for a while, but the RUU ended up not being applied and the phone booted back into CM. Confusing.
Next attempt: fastboot, with bootloader unlocked.
Code:
[[email protected] ruu]# [B]fastboot erase cache[/B]
erasing 'cache'...
OKAY [ 0.258s]
finished. total time: 0.258s
[[email protected] ruu]# [B]fastboot oem rebootRUU[/B]
...
OKAY [ 0.017s]
finished. total time: 0.017s
[[email protected] ruu]# [B]fastboot flash zip rom.zip[/B]
sending 'zip' (124420 KB)...
OKAY [ 12.795s]
writing 'zip'...
(bootloader) adopting the signature contained in this image...
(bootloader) zip header checking...
(bootloader) zip info parsing...
[B]FAILED (remote: 99 unknown fail)[/B]
finished. total time: 18.643s
Did some more reading, found that RUUs only apply when the bootloader is locked. So I relocked the bootloader with fastboot oem lock and tried again:
Code:
[[email protected] ruu]# [B]fastboot erase cache[/B]
< waiting for device >
erasing 'cache'...
OKAY [ 0.258s]
finished. total time: 0.258s
[[email protected] ruu]# [B]fastboot oem rebootRUU[/B]
...
OKAY [ 0.017s]
finished. total time: 0.017s
[[email protected] ruu]# [B]fastboot flash zip rom.zip[/B]
sending 'zip' (124420 KB)...
OKAY [ 12.874s]
writing 'zip'...
(bootloader) adopting the signature contained in this image...
(bootloader) signature checking...
(bootloader) zip header checking...
(bootloader) zip info parsing...
(bootloader) checking model ID...
(bootloader) checking custom ID...
(bootloader) checking main version...
[B]FAILED (remote: 43 main version check fail)[/B]
finished. total time: 44.062s
And trying the LEGEIMG.zip method after relocking:
Code:
Main version is older!
Update Fail!
Do you want to reboot device?
Here are my bootvars:
Code:
fastboot getvar all
(bootloader) version: 0.5
(bootloader) version-bootloader: 1.02.0000
(bootloader) version-baseband: 7.13.35.13
(bootloader) version-cpld: None
(bootloader) version-microp: 0816
(bootloader) version-main: 3.30.0.0
(bootloader) serialno: HT05NRA07XX
(bootloader) imei: XXXXX
(bootloader) product: legend
(bootloader) platform: HBOOT-7227
(bootloader) modelid: PB7611000
(bootloader) cidnum: BM___001
(bootloader) battery-status: good
(bootloader) battery-voltage: 3905mV
(bootloader) partition-layout: HTC
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: RUU
(bootloader) commitno-bootloader: dirty-39ec9098
(bootloader) hbootpreupdate: 11
Apparently this means that I'm trying to flash an RUU that is older than what is on the device. The problem is, the RUU update that I last applied was the HTCDev one to allow unlocking. So the most recent "full" RUU is older than the HTCDev RUU and I can't seem to downgrade.
Am I missing something? I must be missing something. Please help, or the wife will have one up on me. Can't allow that

---

Hello,
try this ROM from BlaY0, its an improved stock ROM and you keep root.
When I remember right, there was no version check during installation, you can install it with Clockwork mode Recovery.

---

alligator_asl said:
Hello,
try this ROM from BlaY0, its an improved stock ROM and you keep root.
Click to expand...
Click to collapse
Thanks, that's an acceptable workaround for now. I ended up going this route. Since CWM 5.X doesn't like "amend" scripting, it took some doing though. :highfive:
If anyone knows of a way to downgrade to a stock RUU after applying the HBOOT 1.02 RUU to the Legend, that would be a help.

---

I'd suggest if you really need to go back stock froyo it can't be done with hboot 1.02, I have tried various different methods with no success.
I can't remember who, but some where on legend forums (I think in the dev section) there is a method to downgrade back to hboot 1.01, if it works you can do it and flash ruu. I can't confirm if it works or not.
Sent from my Legend using xda app-developers app

---

ranger4740 said:
I can't remember who, but some where on legend forums (I think in the dev section) there is a method to downgrade back to hboot 1.01, if it works you can do it and flash ruu. I can't confirm if it works or not.
Click to expand...
Click to collapse
Yeah, that sounds right.
So for anyone reading this thread in the future, if you've unlocked your bootloader using HTC-dev you will be unable to return to stock Froyo using an official RUU without first downgrading to HBOOT 1.01 or older.
The HBOOT downgrade process is pretty involved. You need a goldcard and the hack4legend kit. See this thread for details.
And for good measure, here's a thread with someone else working out the same problem we just worked out here... :silly:
At the end of the day, if you ran a nandroid backup of your stock ROM before blowing it away, you won't need all this jazz.

---

ariaxu said:
Since CWM 5.X doesn't like "amend" scripting, it took some doing though.
Click to expand...
Click to collapse
You can take an older Versin of CWM ( recovery-clockwork-2.5.0.7-legend.zip ), ther are no problems with scripting, a google search brings several results.
If necessary, you lan load the old version of CWM from the new version and then you can flash this ROM !