[Q] How to downgrade the HBOOT?

TeCH-Guruz

Senior Member
Feb 17, 2009
267
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0
Salford
My Legend has upgraded to 3.15.405.3(via RUU)
Now the HBOOT version is 1.01.0000
How to downgrade the HBOOT to the early version?
THX
:confused:
Not sure if you can downgrade the HBOOT but I dont see why you would need to. If it is because you need root follow these guides. Even if you already have a working goldcard make it again mine was working for other phones but wouldnt work for this.
Part 1
Part 2

Once you have finished them you should have HBOOT 1.01 with Android 2.1 full root with clockworkmod so you can flash any rom you would like.
 

oysteivi

Senior Member
Aug 25, 2010
80
10
0
Trondheim
S-OFF is good for anyone who wants to change things in system..no more signing zips :D
Seems you don't need to sign zips for flashing with ROM Manager. Works for me anyway.

I don't have much need for S-OFF myself -- the only thing I can think of is that it should let adfree android work right after flashing CM. Saves me the extra reboot to flash my symlink-etc-hosts.zip..
 

TheGrammarFreak

Senior Member
Jul 29, 2010
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Seems you don't need to sign zips for flashing with ROM Manager. Works for me anyway.

I don't have much need for S-OFF myself -- the only thing I can think of is that it should let adfree android work right after flashing CM. Saves me the extra reboot to flash my symlink-etc-hosts.zip..
?? You could merge it into one zip. You could flash both at the same time (fakeflash)
 

Dr.Romca

Senior Member
Dec 12, 2008
768
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Prague
And system overlay didn't help with that because?
Because I didn't install it :D I was waiting for the S-OFF, now I'm glad I didn't have to upgrade my HBOOT :p
Seems you don't need to sign zips for flashing with ROM Manager. Works for me anyway.
Wow, now it worked....thanks for the tip :)
EDIT: but the thig that you actually reboot your device in recovery is annoying
 
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monkeydrufy

Senior Member
Jun 12, 2010
798
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0
sorry guys, I would like to install modaco rom
I have read that Clockwork recovery is required, I have a legend with Hboot 1.01
what Can I do?

thanks
 

oysteivi

Senior Member
Aug 25, 2010
80
10
0
Trondheim
?? You could merge it into one zip. You could flash both at the same time (fakeflash)
Yeah, I know, I know. :p It's just me being lazy end letting ROM Manager do everything for me. Download through ROM Manager and then flash both zips from recovery might be the most convenient.

(..or just S-OFF, which I plan to do when I get back from vacation :))
 

cmstlist

Senior Member
Jan 11, 2010
3,359
520
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Toronto
I don't even own a Legend, but I've lurked around the Desire, Desire Z and G2 forums - and I own a Nexus One.

I've noticed that procedures for downgrading the HBOOT on these devices seem to involve making a modification to the misc partition, which then fools the phone into accepting a RUU/PASSIMG/etc that downgrades HBOOT.

I see here a procedure that downgrades from the Froyo OTA using a similar idea:
http://android.modaco.com/content/htc-legend-legend-modaco-com/323201/downgrading-from-froyo-ota/
But the resulting HBOOT is still 1.001.

Could this method be adapted to accept a RUU that will roll back the HBOOT even further?
 

Kot_Ik

Senior Member
Apr 30, 2007
171
271
93
Glazov
Nope. Current HBOOT (1.x) does not allow to fool itself and this is the main problem. You may play with misc and downgrade rom, but HBOOT remains the same. The only 0.43 version of HBOOT allows downgrading.
 
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