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[HELP] How to downgrade hboot

16th March 2014, 09:46 AM   |  #1  
the_ziom's Avatar
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Hello I have supercid, s-off and previously flashed MAXIMUSHD ROM and that's on hboot 2.16 so I got board and sick of sense 5 and I want to try out one of the kitkat ROMs but I need hboot 2.15 for that and yes I know that there are hboot 2.16 kitkat roms but they are unstable so can someone tell me step by step how to downgrade hboot 2.16 to 2.15 because I'm quite of a dumb person
Last edited by the_ziom; 16th March 2014 at 10:02 AM.
16th March 2014, 04:26 PM   |  #2  
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Quote:
Originally Posted by the_ziom

Hello I have supercid, s-off and previously flashed MAXIMUSHD ROM and that's on hboot 2.16 so I got board and sick of sense 5 and I want to try out one of the kitkat ROMs but I need hboot 2.15 for that and yes I know that there are hboot 2.16 kitkat roms but they are unstable so can someone tell me step by step how to downgrade hboot 2.16 to 2.15 because I'm quite of a dumb person

This is how I proceed :

1) Downgrade to 2.15 hboot by flashing the old firmware (extract firmware.zip and flash as you did for MaximusHD)
2) Run the latest RUU to get everything clean (I flashed this one)
3) Flash custom recovery with fastboot (TWRP 2.3.X.X)
4) You're done !
16th March 2014, 06:27 PM   |  #3  
the_ziom's Avatar
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Quote:
Originally Posted by benJX

This is how I proceed :

1) Downgrade to 2.15 hboot by flashing the old firmware (extract firmware.zip and flash as you did for MaximusHD)
2) Run the latest RUU to get everything clean (I flashed this one)
3) Flash custom recovery with fastboot (TWRP 2.3.X.X)
4) You're done !

thank you but i have super cid and from what i have read i have to install the ruu according to my cid
tell me if im right
16th March 2014, 07:17 PM   |  #4  
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Quote:
Originally Posted by the_ziom

thank you but i have super cid and from what i have read i have to install the ruu according to my cid
tell me if im right

In fact, the CID matters if you have one from an operator (have a look here, but not the last one, it's the superCID), in this case, you have to choose a RUU according to your operator.

But being superCID, you can run any RUU, so run the last generic one (see my link) and everything will be ok to start from official clean install. Of course you'll stay S-OFF after running the RUU.
The only thing requested is to be on 2.15 hboot, that's why you have to downgrade to older firmware in order to run this.
Hope it will help.
16th March 2014, 09:11 PM   |  #5  
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I have kind of a similar question. After moonshine S-OFF, I'm on modified moonshine HBOOT 2.15.4444. Now I want to go back to the stock HBOOT 2.15.0000. Do I just need to run the RUU to go back? I'm bootloader unlocked, CID T-MOB010, TWRP recovery, and I flashed radio 1.20. Do I need to flash radio back to match the RUU before I run it?

Thanks
16th March 2014, 09:48 PM   |  #6  
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Quote:
Originally Posted by dr3amsINdigital

I have kind of a similar question. After moonshine S-OFF, I'm on modified moonshine HBOOT 2.15.4444. Now I want to go back to the stock HBOOT 2.15.0000. Do I just need to run the RUU to go back? I'm bootloader unlocked, CID T-MOB010, TWRP recovery, and I flashed radio 1.20. Do I need to flash radio back to match the RUU before I run it?

Thanks

Running an RUU is the safest option, although its a bit hit and miss getting the RUU to run correctly. Flashalot recently made a guide (http://forum.xda-developers.com/show....php?t=2678700) if you run into any problems. I would try it without changing the radio, if it doesn't work then flash the matching one and go from there.
Now I cannot recommend this, as I have only tried it once myself and the consequences if it went wrong could mean a dead phone, but this post (http://forum.xda-developers.com/show...&postcount=274) details how you can manually flash a hboot version in RUU mode since you are S-OFF. It comes from this thread: http://forum.xda-developers.com/show....php?t=1777223. Use it at your own risk, there have been two incidents of bricks but it depends how lucky you are feeling!
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