[Guide] How to Downgrade Latest Hboot 2.00.0002>> without using HTC Dev V2

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maysider

Senior Member
Sep 10, 2008
246
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teadrinker said:
Do you have adb enabled in developer settings in your phone?
Click to expand...
Click to collapse

do you mean USB debugging?
yes, according to the turorial
I dont see any "adb" anywhere

edit: ok, missing install ADB drivers in the tutorilal

but the second problem, I get this error:

"
shell@android:/ $ /data/local/tmp/tacoroot --setup
/data/local/tmp/tacoroot --setup
TacoRoot: HTC Edition v1
By Justin Case (jcase)
Presented by TeamAndIRC, RootzWiki and AndroidPolice
With great assistance from Reid Holland (Erishasnobattery)
----------
TacoRoot: HTC Edition v1 is based on a vulnerability independently discovered by

both Justin Case and Dan Rosenberg (Rosenberg fist). I believe unrevoked and
AlpahRev were also aware of it.
----------
Usage:
--recovery : For this exploit to work, you must have booted recovery at least on
ce after your last factory reset.
--setup : Setup the phone for root, must be done before --root.
--root : Root the phone.
--undo : Remove TacoRoot.
----------
Rebooting into recovery, please press Volume+, Volume- and Power at the same tim
e, and reboot the system.
rm failed for /data/data/recovery/log, No such file or directory
link failed No such file or directory
reboot: Operation not permitted
/data/local/tmp/tacoroot: break: cannot break
shell@android:/ $
"
 
Last edited:
teadrinker

teadrinker

Senior Member
Jun 7, 2012
1,120
485
Do you have ics installed? If so, tacoroot won't work, and you'll need to unlock through htcdev to root your phone.
 
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M

maysider

Senior Member
Sep 10, 2008
246
23
Last edited:
jugg1es

jugg1es

Senior Member
May 29, 2012
13,282
1,938
maysider said:
aaah, ok

but is there any tutorial how to s-off ICS?

thx

edit: unlocked.....could you recommend any tutorial how to s-off the ICS hboot 2.0xxx?

thank you
Click to expand...
Click to collapse

After you've downgraded, don't keep the revolutionary hboot. There are issues with formatting, upgrade to one of the eng hboots, you'll find links in the index thread

"You learn something new every day if you're not careful" - Wilf Lunn
 
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  • 33
    shadi22
    shadi22
    This method works for software version 2.11 and above and doesn't work for version 2.10 below.. Please use zegRush if this doesn't work for you.


    FOR PHONES THAT ARE NOT ROOTED

    Note: For locked bootloaders only. Do not use Htc dev prior to using this guide.

    First thanks to:

    1. mtothearkus
    2.petarpLab..
    3.jcase for TacoRoot..
    4. amidabuddha
    5.zryvffn (misc_version_universal)


    I AM NOT RESPONSIBLE FOR ANYTHING THAT MAY HAPPEN TO YOUR DEVICE..

    This was tested on latest OTA ASIA 2.15.xx with latest Hboot 2.00.0002.
    Latest 2.15 cannot be rooted with zegRush so did some research..

    Things Needed:

    1.tacoroot
    2.misc_version (download attachments below)
    3.OLDEST RUU for your "REGION/ BRAND".. i repeat, specific region to avoid customer ID error.
    4. adb (you know how it works)
    5. phone in USB debugging mode.


    STEPS:
    1. download tacoroot and misc and put all files in your desired directory.
    2. Run terminal and change location to where you files are.
    3. now type:

    Code: 
    adb push tacoroot.bin /data/local/tmp/tacoroot
adb push misc_version /data/local/tmp/

    4.After pushing all the files, run tacoroot by typing:

    Code: 
    adb shell 
chmod 777 /data/local/tmp/*
/data/local/tmp/tacoroot --setup

    5. After this commands your phone "REBOOT" the phone to recovery. Now press vol up then power then REBOOT to boot the phone normally. Wait till it boots completely and then type:

    Code: 
    adb shell
/data/local/tmp/tacoroot --root

    6.This command will gets you out of adb shell.. so we need to get back to adb shell and you will see "#" sign..meaning you are temp rooted and we can then proceed to changing MISC_VERSION:

    Code: 
    adb shell
cd /data/local/tmp
./misc_version -s 1.27.405.6

    7. After its done you can now flash your "REGION/ BRAND specific RUU".
    8. After your done with RUU. Proceed to http://revolutionary.io..

    Happy Flashing ;)


    FOR ROOTED PHONES
    *Proceed with:

    STEP 3
    STEP 6
    STEP 7
    STEP 8
    -Done

    *Added misc_version_universal thanks to zryvffn
    View
    3
    Z
    zryvffn
    This does work, if any one is getting error such as Error Opening Back up file etc, try using misc_version_universal to avoid such errors.

    here is what i did and worked for me.

    followed the steps as outlined.

    The oldest RUU from my provider that i could find RUU_Saga_Telstra_WWE_1.36.841.3_Radio_20.28d.30.08 05U_3805.04.02.01_M_release_184558_signed.exe.

    followed the process completely and then on the part where you change version number this is what i used:

    adb shell
    cd /data/local/tmp
    ./misc_version -s 1.36.841.3 (Same number as my RUU)

    i did try using 1.27.*** but i got an error on RUU 140 Boot loader error. i don't know if it was my mistake somewhere or not but i tried twice and i got the same error but thought of giving a last go by changing version number to what i had in RUU and worked.

    i have attached the universal misc version if anyone wants to use.

    Thanks Guys for all the support.

    Cheers!
    View
    2
    teadrinker
    teadrinker
    The only guide I've seen for hboot 2.02.0002 is this one:

    http://xdaforums.com/showthread.php?t=2183380

    Not very nicely formatted, I think, but all the steps you need are there
    View
    2
    amidabuddha
    amidabuddha
    qpkqkma said:
    Software : 2.10.401.8
    Kernel: 2.6.35.10
    Non-branded, lastest firmware.
    Late I´ll try factory reset.
    Click to expand...
    Click to collapse

    Zergrush method from mtothearkus's thread should work for you
    View
    2
    enigmaamit
    enigmaamit
    shadi22 said:
    1. You dont need the command "rm". Because you already reset to factory. By using rm means you remove existing files in the system..
    2. Yes you can flash RUU because youve change the misc version.. you dont need to get rooted to flash RUU.. you temp root just to push the misc version. When you reboot.. temp root will be gone and yes you can still flash RUU because youve done the essential misc version change.
    3. You making things much more complicated.
    4. Read post. Again..this is VERSION 2.. zegRush has the similar guide..
    5. Never advice anyone to pull battery out when flashing RUU.. you may brick the device.
    6. The zegrush method has been linked on the first page..
    7. Youre post seem irrelevant to this thread.. better post this in zegrush guide..
    Click to expand...
    Click to collapse

    He seems to have posted it in both the threads...:confused:

    And i agree, his version sounds very complicated and messy, like machinery held together by glue... I like your instructions better...clear and precise.
    View

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