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Root re-write the misc image to downgrade

Discussion in 'Android Devices' started by scotty85, Oct 6, 2011.

  1. scotty85

    scotty85 Android Expert
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    there is a guy on xda that claims an older versionof unrevoked got him su access on 2.3.4: [Q] HTC Incredible running 2.3.4 and 2.15.10.07.07 - Please help get S-OFF - xda-developers

    he says hes installed clockwork,and even made a backup,but cant run unrevoked forever patch because the baseband is not supported.

    any ideas? basebands were able to be changed in recovery on the eris,but havnet seen it done this way on the inc.

    other idea i had was to rewrite the misc image so he could just downgrade to froyo. if hes tryuly got su access that should be no big deal.

    i thot i had seen a guide or thread about rewriting the misc image so a stock phone could downgrade,but i cant find it for nothin now :mad:

    if youve got a link or idea,ppost it up here or there :)

    im finding it interesting,aS id heard 2.3.4+ was unrootable with any typical means(like rageinthecage)
     

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  2. iowabowtech

    iowabowtech root@android:/ #
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    Hey Scotty, I would go off this one:

    [GUIDE] How to downgrade from OTA RUU 2.2 to 2.1 - xda-developers

    The files needed are in post #13. We tried this earlier but couldn't get temporary SU so gave up. If this guy actually was able to get temp SU with S-on, this should work although obviously I'd downgrade to 2.2 in this case instead of 2.1 like the original thread.
     
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  3. scotty85

    scotty85 Android Expert
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    Cool,thanx bro. Looks like just what he needs. :cool: I knew I'd seen something like that somewhere!
     
  4. iowabowtech

    iowabowtech root@android:/ #
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    Look forward to an update. Would be great if we find a workaround, I was beginning to lose hope with our current resources.
     
  5. scotty85

    scotty85 Android Expert
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    i will keep you updated for sure. i keep checking that thread to see if hes replied yet. then i can either make up a guide, or link him to it dep on how comfortable he is.

    if i dont hear anything,some experimention is in order :) think ill go ahead and put an unrooted(still s-offed) GB on my inc,and see if i can duplicate his situation. if the commands work without errors,i may even turn my secure flag back on and try it :eek:

    either way ill keep everyone advised :)
     
  6. iowabowtech

    iowabowtech root@android:/ #
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    You'll have to if it works with s-off. First thing everyone will ask when you post..."but did u start out s-off"? Been down that road already, everyone has a conspiracy theory that it can allow magic inexplainable things to happen lol.
     
  7. scotty85

    scotty85 Android Expert
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    lol,you got that right! :D

    ive downloaded the files,and looked thru the code. if he still hasnt replied by the time i get a chance to play with it(sometime over the weekend) heres my basic plan:
    1) turn my secure flag on on rooted froyo. enter the commands to rewrite the misc image,and try to downgrade to 2.1.
    2)reroot aND turn the secure flag back off. run the GB ruu. instal clockwork,flash superuser. run thru the rewrite commands.
    3)turn the secureflag back on in gb :eek: this should be the condition hes in-rooted,cw recovery,s-on.
    4)run the commands again. cross fingers and hope it works to downgrade back to froyo.reroot and turn secure flag back off. :D
    5)run gb ruu again. now try and figure out exactly how he got su access without installing a recovery thru hboot. if i can figure that out,then-
    6)turn secure flag back on.run gb ruu again,and cross fingers that whatever we find in 5 works,so i can root and repeat step 4 to get back to froyo and run unrevoked again :D

    alternatively,im going to watch craiglist for a couple days,if i can pick up a spare s-on GB inc cheap enuff ill get it to mess with(mine technically belongs to the GF now and shes not crazy about me messing with it ;))

    hopefully we will get it figured out. :)

    if not,i do believe there is light at the end of the tunnel... alpharev tweeted the other day that he needed latest OTA files for inc 2 AND inc 1 :D hopefully there is enuff demand they are working on adding support for it :cool:
     
  8. iowabowtech

    iowabowtech root@android:/ #
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    Sounds good. I know you've been around for a long time so I'm assuming your Inc is Amoled. That would be prudent when downgrading from 2.2 to 2.1 in the early stages of your plan. If it's an SLCD screen, you'll end up with a black screen (phone still working though) and you'll have to blind flash your way out of it.
     
  9. scotty85

    scotty85 Android Expert
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    Yup,amoled indeed :) I got an email from the guy with the unrevoked that he used,so ill check it all out as soon as I can. Also sent a couple emails to incredibles for sale :)
     
  10. azlodaniel

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    Scotty, Please Keeps us updated I really want to root my phone.

    Thanks.
     
  11. scotty85

    scotty85 Android Expert
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    i will keep you updated. picking up a spare,s-oned inc tonight so i dont have to risk my s-off. :eek:

    as long as the file he sends is able to give su access on it,im hopeful it will all work.
     
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  12. iowabowtech

    iowabowtech root@android:/ #
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    If you can actually get SU, you are in, no question about it. Screw the exploit, downgrade ftw. I'm just hoping his deal wasn't an odd fluke...can't understand what would have allowed the SU on that version that's what's troubling me.
     
  13. sdrawkcab25

    sdrawkcab25 Android Expert
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    Agreed, it doesn't really make much sense, since unrevoked uses the rageagainstthecage exploit which has no bearing in gingerbread.
     
  14. scotty85

    scotty85 Android Expert
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    well guys,its not lookin so good. the file that he sent was unrevoked 3.22,so it is a couple versions older than the current. i picked up a spare inc for cheap,turns out to be an slcd,idk if thats got anything to do with it. s-on and froyo still :thinking:

    so i jumped in with both feet and just ran the 4.06.605.3 ruu and ran the program. its not working,but the phone doesnt remember settings on reboot,and keeps forgetting to have usb debugging checked,so when it reboots ive got to manually check it for it to continue. it then just hangs on "letting system settle".

    i think part of the prollem might be this ruu is bad. obviously those that got the real OTA have working phones. with this RUU,it hangs at the droid eye for some time during the boot,and when it finally comes up force closes stuff all over the place. :eek:

    the syncing icon has been there all night and my contacts still arent there,if i try a manual sync,google servcices framework FCs,the market wont update because the updater FCs,you literally cannot do anything without something FCing. i cant even download a file manager because android.process.media keeps FCing :mad: the phone is literally unuseable... im glad this is a spare one,or id be pretty ticked off since theres no way to even go back.

    im not sure if i should publicaly post a link for this version. if you all think its ok,then i will... otherwise PM me for a multiupload link if you want to give it a shot. but as has been said,i wouldnt get your hopes up too much,as the rageagainstthecage exploit has supposedly been patched. i have no idea how it worked for him.

    i can still walk him thru trying to rewrite the misc image,but without a way to get root acess first,its not going to do the rest of us much good.
     
  15. scotty85

    scotty85 Android Expert
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    well,i cant get my spare inc to work,but we have made some progress. got a PM from guy with a stock 2.3.4 that he got as a replacement. he ran unrevoked 3.22 and did some ADB commands,was able to downgrade and is now s-off and rooted.

    hang in there guys,ill get the instructions cleaned up a lil and posted in the next day or 2 for anyone else that wants to try it :)

    also,sdraw,i sent you and iowa a PM. :)
     
  16. sdrawkcab25

    sdrawkcab25 Android Expert
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    ....looking for Guinea pigs....
     
  17. azlodaniel

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    Cool thanks for the update and all the hard work.


     
  18. mkrieger

    mkrieger Newbie
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    Do we know if this will work for amoled and slcd screens yet? etc... Might be a dumb question but you never know. Either way I have been looking/checking for a new way twice a day since I flashed the update so YAY!
     
  19. scotty85

    scotty85 Android Expert
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    Worked for sure on an slcd. Should work fine on amoled as well :)

    Ill try my best to get it up when I get home later this evening. :)
     
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  20. mkrieger

    mkrieger Newbie
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    If I purchased my phone in Jan I think it was im assuming it's an slcd? How can I tell?
     
  21. scotty85

    scotty85 Android Expert
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    Check settings/about phone/hardware

    Slcd =003
    Amoled=002
     
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  22. mkrieger

    mkrieger Newbie
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    0003 sweet thanks! Will definatly be giving it a go tonight if you get it up!
     
  23. sdrawkcab25

    sdrawkcab25 Android Expert
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    Go into the about phone section, and look under hardware: version 3 is slcd and version 2 is amoled.

    N/m didn't see Scotty's reply.
     
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  24. mkrieger

    mkrieger Newbie
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    Haha that's ok thanks though!
     
  25. scotty85

    scotty85 Android Expert
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