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[HOW-TO] downgrade HBOOT 0.92 to 0.80 again

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Sammy83
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Quote:
Originally Posted by teppic74 View Post
Has anybody tried downgrading 0.83.001 with this method yet?

My branded o2 Desire has this on it and there's not much I can do with it without downgrading to 0.80 I think.
if you are on 0.83 update the official FroYo OTA so you have 0.92 and then downgrade to 0.80.

i can't confirm that it's possible with 0.83
ROM: CheckROM RevoHD™ V3.1.1
Firmware version: 2.3.5 | Build: -
Kernel: 2.6.35.7 | Modem: XXKI1
 
Sammy83
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Quote:
Originally Posted by bariz143 View Post
i get the same error with the communication.

I downgraded.
Uninstalled htc COMPLETLY
installed the unrevoked android usb driver
rebooted
turned usb debugging on started unrevoked in admin mode
and it still fails.

before i upgraded to 0.92 i used this method 1 milion times and it always worked.
i think i had a similar problem while rerooting / custom recovery.
Try to downgrade again and remove all update.zip files from your SD card before.
ROM: CheckROM RevoHD™ V3.1.1
Firmware version: 2.3.5 | Build: -
Kernel: 2.6.35.7 | Modem: XXKI1
 
bariz143
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when i try to install a custom ruu i get bootloader error
and with the unrevoked i get main version older.
it has something to do with my signature i think..
 
teppic74
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Quote:
Originally Posted by Sammy83 View Post
if you are on 0.83 update the official FroYo OTA so you have 0.92 and then downgrade to 0.80.

i can't confirm that it's possible with 0.83
It's a branded phone so I can't get the OTA update, and I can't debrand on 0.83 as far as I know.
 
bariz143
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witch files do i need to have in my sd to use unrevoked??
 
Sammy83
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Quote:
Originally Posted by teppic74 View Post
It's a branded phone so I can't get the OTA update, and I can't debrand on 0.83 as far as I know.
bad situation mate....
you can try on your own risk or wait until someone can confirm it.
ROM: CheckROM RevoHD™ V3.1.1
Firmware version: 2.3.5 | Build: -
Kernel: 2.6.35.7 | Modem: XXKI1
 
Sammy83
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Quote:
Originally Posted by bariz143 View Post
witch files do i need to have in my sd to use unrevoked??
Take a look on the first post of this thread!
ROM: CheckROM RevoHD™ V3.1.1
Firmware version: 2.3.5 | Build: -
Kernel: 2.6.35.7 | Modem: XXKI1
 
ardsar
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Quote:
Originally Posted by sfogg View Post
Hi, I've downgraded to .80 the I used unrevoke to root the tel. Now I'm in 2.1 update1 rooted.
But now I dont manage to flash LeeDroid ROM.... (signature error) and I tried with 2 new goldcard...nothing to do. I'm stuck with the 2.1 OS :(
If using clockwork recovery, there is an option somewhere to turn off signature verification.

Sent from my HTC Desire using Tapatalk
-----------------------------------------------
HTC One M8
 
bariz143
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Quote:
Originally Posted by Sammy83 View Post
Take a look on the first post of this thread!

I have a zip rom file and the PB99 file is that the only things i need in the sd?
 
Sammy83
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I have a zip rom file and the PB99 file is that the only things i need in the sd?
To use unrevoke you need nothing on you SD card because the files are going to be pushed through the unrevoke program.

if you are talking about the downgrading you only need the PB99IMG.zip on your SD.

For unrooting after custom recovery with unrevoke you need a custom ROM zip file which you can apply.
ROM: CheckROM RevoHD™ V3.1.1
Firmware version: 2.3.5 | Build: -
Kernel: 2.6.35.7 | Modem: XXKI1

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desire, froyo, hboot, root, unrevoke
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