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

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shadi22

shadi22

Senior Member
Nov 30, 2008
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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
 

Attachments

  • tacoroot.rar
    6.5 KB · Views: 6,826
  • misc_version_universal.zip
    211.8 KB · Views: 5,540
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S

scan6

Senior Member
Apr 30, 2011
274
154
Hsinchu
Yes! it works very wellwith my version 2.13 to1.47
It's quite easy to do it
Thx a lot!

Sent from my HTC Desire S using XDA App
 
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shadi22

shadi22

Senior Member
Nov 30, 2008
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Last edited:
Q

qpkqkma

Senior Member
Nov 13, 2011
91
12
Žilina
After rebooting phone from recovery, typing
adb shell
/data/local/tmp/tacoroot --root

Answer:

Rebooting into root.
cannot create /data/local.prop: permission denied

and phone restart...
Desire S, Android 2.3.5, Hboot 2.00.0002
 
shadi22

shadi22

Senior Member
Nov 30, 2008
125
49
35
Manila
qpkqkma said:
After rebooting phone from recovery, typing
adb shell
/data/local/tmp/tacoroot --root

Answer:

Rebooting into root.
cannot create /data/local.prop: permission denied

and phone restart...
Desire S, Android 2.3.5, Hboot 2.00.0002
Click to expand...
Click to collapse

Dude what your software version number? brand if any?.. if this root doesnt work.. try zegRush method..:D
or try this

Update to latest available firmware, then try.
If that fails, do a factory reset and try.
 
Last edited:
W

walphy

Member
Jan 26, 2012
19
4
Signed up here at xda just to say that this worked nicely on my Desire S. :)

I had difficulty making the ADB code given by shadi22 work at first, but after redoing them and just copy pasting them in terminal, they worked. My Desire S also had an Asia 2.15 ROM and 2.00.0002 Hboot. Used the Asia WWE 1.48.707.1 RUU to downgrade the HBOOT after changing the misc-version and tacorooting, then Revolutionary all the way

At first, I thought that I made a mistake choosing this phone (My Desire's display got borked and SISPH's repair quote was way too expensive for a nearly two year old device :p) because of the need to downgrade the hboot before getting S-OFF, but shadi22's method is probably the most elegant of all the S-OFF methods on 2.00.0002 devices :cool:
 
shadi22

shadi22

Senior Member
Nov 30, 2008
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Manila
HAHAHA.. thanks dude.. Anyway.. SISPH are full of dumb people.. i had problem with my device too.. a green dot on an LCD screen. my phones on warranty but never had it repaired since they have no replacement part yet. so give up on the idea for that damn SISPH.. They had the worst customer service.. they should never have been contracted with HTC on the first place.. No HTC on my next phone. The reason to go with HTC was mainly for the developers in this beloved site.. But now im seeing great dev from other phone section..=)
 
Q

qpkqkma

Senior Member
Nov 13, 2011
91
12
Žilina
Try to do a zergRush method. Everything run fine, i do steps 1-5, do a step 6 (run RUU etc etc.) but RUU say me error updating, phone stuck on HTC logowhen i pull out cable it load in HBOOT and say "RUU Security Fail ! Update Fail!".
Sucks.....im downloading RUU with SW 2.10.401.8 to recover phone.....
Any other method ? :D
 
D

dontjudgemekk

Senior Member
Apr 24, 2011
100
7
Hey guys,

So I tried this method but encountered the following issue as shown in the image below:

2508164698-orig.jpg


Does anyone have any ideas as to where I have went wrong?

Kind regards,

DJM.
 
T

tpbklake

Senior Member
Aug 1, 2007
3,887
1,700
dontjudgemekk said:
Hey guys,

So I tried this method but encountered the following issue as shown in the image below:

2508164698-orig.jpg


Does anyone have any ideas as to where I have went wrong?

Kind regards,

DJM.
Click to expand...
Click to collapse

Off hand I would say that /data/local/tmp was not empty before you started and contains more than just the 2 files you copied there, thus the command chmod 777 /data/local/tmp/* is failing.

Why not just do 2 chmod commands for the 2 files you copied?
 
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D

dontjudgemekk

Senior Member
Apr 24, 2011
100
7
tpbklake said:
Off hand I would say that /data/local/tmp was not empty before you started and contains more than just the 2 files you copied there, thus the command chmod 777 /data/local/tmp/* is failing.

Why not just do 2 chmod commands for the 2 files you copied?
Click to expand...
Click to collapse

How would I clear the /data/local/tmp directory?

Can you phrase what you mean by performing 2 chmod commands for the 2 files better? I dont understand what you mean unfortunately. Are you referring to the tacoroot.bin and misc_version files?
 
T

tpbklake

Senior Member
Aug 1, 2007
3,887
1,700
dontjudgemekk said:
How would I clear the /data/local/tmp directory?

Can you phrase what you mean by performing 2 chmod commands for the 2 files better? I dont understand what you mean unfortunately. Are you referring to the tacoroot.bin and misc_version files?
Click to expand...
Click to collapse

Yes after you create the adb shell and get the $ prompt type:

chmod 777 /data/local/tmp/misc_version
chmod 777 /data/local/tmp/taco root.bin
 
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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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