Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,781,459 Members 42,286 Now Online
XDA Developers Android and Mobile Development Forum

Installing RUU as a way of downgrading hboot?

Tip us?
 
Crocodilek
Old
#1  
Junior Member - OP
Thanks Meter 1
Posts: 20
Join Date: Oct 2010
Default Installing RUU as a way of downgrading hboot?

Hi,

Because my HTC Evo 3D is gone for repairs it will (hopefuly) return fixed and most probably updated to stock ICS with hboot 1.53.0007. Previously I've used HTCdev to unlock the bootloader and install 4ext recovery, then the Wire Trick to get S-off and finally this guide to downgrade to hboot 1.49.0007

Before sending the mobile for repairs, I've reverted it as close to stock as possible, using the method described here. One of the steps required extracting ROM.zip from RUU exe file, renaming it to PG86IMG.zip and installing in fastboot.

Now my question is... With a "fresh" phone (ICS, S-on, locked), will it be possible to install PG86IMG.zip extracted from Gingerbread RUU in fastboot? If this way works, it would downgrade hboot to 1.49.0007 and then allow me to use Revolutionary to get the phone Unlocked and S-off (instead of the HTCDev + Juopunutbear + hboot downgrade combination).

Will this work or will it fail? If the latter, is there a chance of bricking the device?

I'm sorry if my question is noobish, but I'm still very new to all the HTC hboot, S-on/S-off and fastboot stuff...

Best regards,
Crocodil
 
donkeykong1
Old
#2  
donkeykong1's Avatar
Senior Member
Thanks Meter 381
Posts: 1,384
Join Date: Aug 2012
Location: Sesvete, Zagreb
Quote:
Originally Posted by Crocodilek View Post
Hi,

Because my HTC Evo 3D is gone for repairs it will (hopefuly) return fixed and most probably updated to stock ICS with hboot 1.53.0007. Previously I've used HTCdev to unlock the bootloader and install 4ext recovery, then the Wire Trick to get S-off and finally this guide to downgrade to hboot 1.49.0007

Before sending the mobile for repairs, I've reverted it as close to stock as possible, using the method described here. One of the steps required extracting ROM.zip from RUU exe file, renaming it to PG86IMG.zip and installing in fastboot.

Now my question is... With a "fresh" phone (ICS, S-on, locked), will it be possible to install PG86IMG.zip extracted from Gingerbread RUU in fastboot? If this way works, it would downgrade hboot to 1.49.0007 and then allow me to use Revolutionary to get the phone Unlocked and S-off (instead of the HTCDev + Juopunutbear + hboot downgrade combination).

Will this work or will it fail? If the latter, is there a chance of bricking the device?

I'm sorry if my question is noobish, but I'm still very new to all the HTC hboot, S-on/S-off and fastboot stuff...

Best regards,
Crocodil
With s-on, RUU won't work
The Following User Says Thank You to donkeykong1 For This Useful Post: [ Click to Expand ]
 
Crocodilek
Old
#3  
Junior Member - OP
Thanks Meter 1
Posts: 20
Join Date: Oct 2010
Quote:
Originally Posted by donkeykong1 View Post
With s-on, RUU won't work
Thank you, that's all I needed to know I guess I will use the same method I did previously
 
donkeykong1
Old
#4  
donkeykong1's Avatar
Senior Member
Thanks Meter 381
Posts: 1,384
Join Date: Aug 2012
Location: Sesvete, Zagreb
Quote:
Originally Posted by Crocodilek View Post
Thank you, that's all I needed to know I guess I will use the same method I did previously
Yes, but if you left your phone s-off you could get it back s-off. Then you can do the RUU thing. AFAIK service won't touch s-off unless they change the motherboard
 
jcfunk
Old
#5  
jcfunk's Avatar
Senior Member
Thanks Meter 207
Posts: 329
Join Date: Mar 2008
It will fail because the main version of the Gingerbread ROM is lower than your current ROM

Sent from my PG86100 using Tapatalk
 
Crocodilek
Old
#6  
Junior Member - OP
Thanks Meter 1
Posts: 20
Join Date: Oct 2010
Quote:
Originally Posted by donkeykong1 View Post
Yes, but if you left your phone s-off you could get it back s-off. Then you can do the RUU thing. AFAIK service won't touch s-off unless they change the motherboard
Well, the touchscreen in lower bottom of the screen has stopped working and the phone is still on warranty, so I've reverted it to stock ICS + s-on + "Relocked" (didn't find any way to get back to "Locked"). This way there's a better chance that they will do the repair on warranty but I've read different reports about the Polish HTC certificated repair service... Sometimes they void warranty for using HTCdev unlock even if a problem is clearly with hardware (like in my case).

I hope that my EVO does get repaired as I've really enjoyed using it with CM11...
 
jcfunk
Old
#7  
jcfunk's Avatar
Senior Member
Thanks Meter 207
Posts: 329
Join Date: Mar 2008
I don't unlock the phone, I use Ultimate recovery tool to downgrade hboot.

http://forum.xda-developers.com/show....php?t=1653777

Sent from my PG86100 using Tapatalk
 
Crocodilek
Old
#8  
Junior Member - OP
Thanks Meter 1
Posts: 20
Join Date: Oct 2010
Quote:
Originally Posted by jcfunk View Post
I don't unlock the phone, I use Ultimate recovery tool to downgrade hboot.

http://forum.xda-developers.com/show....php?t=1653777

Sent from my PG86100 using Tapatalk
I did see this method before (one of the 2 hboot downgrade options I could find), but the step of "intentionally bricking" my device made me too nervous to try it But I might use the tool once I get my mobile back
 
jcfunk
Old
#9  
jcfunk's Avatar
Senior Member
Thanks Meter 207
Posts: 329
Join Date: Mar 2008
lol, scares every one. But it was the frist way to downgrade

Sent from my PG86100 using Tapatalk

---------- Post added at 02:33 PM ---------- Previous post was at 02:31 PM ----------

Use the firmware zip from OTA 2.95 makes it easy to do.

Sent from my PG86100 using Tapatalk

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Integrate Social Networks Into Your Project With ASNE Library

Social network applications and services have developed into major parts ofour … more

Give Your Android Wear Device a Lock Screen with Lockable

Without a doubt,Android Wear is one of the most frequently talked abouttopics of … more

Forums Added for the LG G Watch R and Samsung Gear S

A little over a week ago, LG “inadvertently” let the world know about the … more

Secrecy App Goes Open Source, New LG Android Wear Device! – XDA Developer TV

Secrecy encryption app goes open source! That and much … more