Develop Bugs

Need help with downgrading G2

Is there a way to downgrade to froyo so I can root my G2. it's currently on 2.3.4. But I can't seem to get adb working on my computer
---------- Post added at 09:42 AM ---------- Previous post was at 09:23 AM ----------
I'm trying to input these lines into command line (adb)
chmod 777 /data/local/tmp/fre3vo
I keep getting this
'chmod' is not recognized as an internal or external command,
operable program or batch file.
NEED HELP!!!

Make sure you're in adb shell first before doing chmod.
If you need more help, feel free to join #g2root irc on freenode
-Nipqer

[Q] Temp Root and Downgrade issues 2.3.3

Hi Guys.
I have watched your Noob video and it's very funny.
However,I am going to have to risk being a "noob" due to the fact that im unable to post in the dev thread for downgrading.
I have decided to root my DHD and everyone says this is the place to go to learn how to do it.
I have read the instructions throughly and decided to take the plunge, however I'm having some problems
with the method described in the first post!
Please let me tell you what I have done so far.
1) I have read the posts at http://forum.xda-developers.com/showthread.php?t=879525 (doesn't seem to apply to me.)
2) I am running Build version 2.50.405.2 (So I need to downgrade.)
3) I have the latest version of HTC Sync installed.
4) I have created a gold card as directed in the "How to downgrade" post and also placed PD98IMG.zip in the root of the gold card
inserted in the phone.
5) My DHD is running Gingerbread 2.3.3, Software number 2.50.405.2 so I followed section b2 of the downgrade thread
http://forum.xda-developers.com/showthread.php?t=905003
However at the end of the cmd process I see a "$" symbol, not the "#" as per the screenshot.
Any ideas anyone?
Cheers.
Greg.
Update: I just tried the method here
http://forum.xda-developers.com/showthread.php?t=1152233
for "TEMP-ROOT ANY Gingerbread build and downgrade to 1.32.405.6"
I manage to temproot using the alternative method of typing the adb commands under the Temp Root heading.
I finally get the "#"
I still have the gold card with PD98IMG.zip in the DHD.
I go to Downgrade step 4 and again use the alternative method and type in the commands only for cmd to say
"adb: not found"
AAAGGGGHHHHHHH!
I have been trying this all day.
I'm going to curl up in a corner and cry now.
Any help greatly appreciated.
Greg.

Hi Greg, try this method, http://forum.xda-developers.com/showthread.php?t=952352

or this one : http://driphter.com/index.php?topic=3867.0
you won't get ur hands dirty with adb commands or other stuff

Hi Alex.
I have tried this method too.
Alas, no luck there either! :-(
alex6vasy said:
or this one : you won't get ur hands dirty with adb commands or other stuff
Click to expand...
Click to collapse
---------- Post added at 02:31 PM ---------- Previous post was at 02:30 PM ----------
Hi Mich.
I'll give this a go tonight.
Many thanks.
Greg.
MichDHD said:
Hi Greg, try this method, http://forum.xda-developers.com/showthread.php?t=952352
Click to expand...
Click to collapse

As Alex said try his link its easy and no telnet etc,id tried it many times through various ways and failed,the key is I found anyway...is to always format the sd card fully not a quick format,always do the 'takes longer' option I came from 2.50 also,it'll work
Sent from my HTC Desire HD A9191 using XDA App

adb push fre3vo /data/local/tmp
adb push misc_version /data/local/tmp
adb shell chmod 777 /data/local/tmp/fre3vo
adb shell chmod 777 /data/local/tmp/misc_version
adb shell /data/local/tmp/fre3vo -debug -start F0000000 -end FFFFFFFF
adb shell
after this # type:
/data/local/tmp/misc_version -s 1.31.405.3
exit
adb reboot bootloader
have a good time .....................
this is the simple method to downgrade ur device.........you may los ur apps...but will be restored from google after flashing sense roms..........
believe me...this will work 100% sure...........

I'm pretty sure I have tried this method, but I'll give this a go, cheers buddy.
Greg.

hi greg
i am a noob too but i tried this and i was successful.
http://forum.xda-developers.com/showthread.php?t=1180639
I hope I could help you, best regards, gluecke63

Hey dude.
Tried this, didn't work.
I successfully manage to get temproot using the code you gave, but then on reboot the below happens.
Always, when I get to the boot loader it recognises PD98IMG.zip and looks like it's loading it. After loading it I get a "Checking PD98IMG.zip" message then the bootloader just returns to the main screen, I am never asked if I want to update!
Getting totally flumoxed with this! :-(
So I have made a youtube video of the problem.
rohithksaj said:
adb push fre3vo /data/local/tmp
adb push misc_version /data/local/tmp
adb shell chmod 777 /data/local/tmp/fre3vo
adb shell chmod 777 /data/local/tmp/misc_version
adb shell /data/local/tmp/fre3vo -debug -start F0000000 -end FFFFFFFF
adb shell
after this # type:
/data/local/tmp/misc_version -s 1.31.405.3
exit
adb reboot bootloader
have a good time .....................
this is the simple method to downgrade ur device.........you may los ur apps...but will be restored from google after flashing sense roms..........
believe me...this will work 100% sure...........
Click to expand...
Click to collapse

You can't just flash PD98IMG.zip when this is an older base then your current.
When your phone is finished checking, it decide not to flash it cause it's older.

Apologies, I should have said I manage to get temproot using the code supplied. I have updated the post now.
Cheers.
MichDHD said:
You can't just flash PD98IMG.zip when this is an older base then your current.
When your phone is finished checking, it decide not to flash it cause it's older.
Click to expand...
Click to collapse

I wonder if my PD98IMG.zip file is corrupt.
I just did an MD5 check but it's tough to tell as the original PD98IMG.zip file I downloaded from here didn't have an MD5 Checksum with it

Hi guys.
Quick update. I have successfully downgraded my DHD.
The issue was a corrupt PD98IMG.zip
I downloaded MD5 Check 2.1 from here and tested the checksum of the PD98IMG.zip against the MD5 Checksup posted at the top of the page here, post 261,
Quick Ref - (C3D244A9F056E48EE3851A14FF52204C)
When MD5 Check 2.1 showed it as not matching, I downloaded a new PD98IMG.zip from here.
I used MD5 Check 2.1 to the checksum this new PD98IMG.zip. Success, it matched.
I transferred the new PD98IMG.zip to the goldcard I made using these instructions (I don't know if I actually needed a goldcard).
I put the Goldcard in my DHD, used cmd to run the below code as given by rohithksaj, thanks bud, which echoed the instructions here.
Code:
adb push fre3vo /data/local/tmp
adb push misc_version /data/local/tmp
adb shell chmod 777 /data/local/tmp/fre3vo
adb shell chmod 777 /data/local/tmp/misc_version
adb shell /data/local/tmp/fre3vo -debug -start F0000000 -end FFFFFFFF
adb shell
after this # type:
/data/local/tmp/misc_version -s 1.31.405.3
exit
adb reboot bootloader
When the DHD rebooted into bootloader, I selected "bootloader", then waited about 5 seconds for the bootloader to recognise the PD98IMG.zip.
the DHD then goes through a process of loading the PD98IMG.zip then it checks the PD98IMG.zip.
Finally the screen that eluded me appeared, the "Do you wish to start update?" screen.
I chose yes, 5 mins later I had a downgraded phone.
Thank you all for your help on this issue.
Props to you all.
Greg.

My next question is how do I change the thread title to "XXXX -Solved"?

All the best mate.............
Flash carefully reading all instructions..............
welcome to the world of custom roms ~~~~~~~~~~

Cheers bud.
just done Radio S-OFF
Just about to do ENG S-OFF
What Rom do you recommend?
I have been thinking about the Sense 3.0 rom for the DHD!
Thoughts?
Cheers.
Greg.
rohithksaj said:
All the best mate.............
Flash carefully reading all instructions..............
welcome to the world of custom roms ~~~~~~~~~~
Click to expand...
Click to collapse

TeamDraven said:
Cheers bud.
just done Radio S-OFF
Just about to do ENG S-OFF
What Rom do you recommend?
I have been thinking about the Sense 3.0 rom for the DHD!
Thoughts?
Cheers.
Greg.
Click to expand...
Click to collapse
thinking about sense 3........may use ARHD 6.1.1
or
any rom with official sense 3...........
flash what u like mate..............
All have different taste ~~~~~~

Help G2 downgrade with 2.3.4

Please help. Im trying to downgrade so i can root my g2 on 2.3.4 I set up ADB on my mac. Everything works. But when i try to adb push fre3vo /data/local/tmp, i get permission denied. What am im doing wrong??? SD is mounted on phone, not pc storage mode. Help me.
WHen i do enter
$ adb shell cat /dev/msm_rotator
i get this. /dev/msm_rotator: invalid length so this works.
Thank you

I have the same issue have you resloved it ?

crazylee27 said:
Please help. Im trying to downgrade so i can root my g2 on 2.3.4 I set up ADB on my mac. Everything works. But when i try to adb push fre3vo /data/local/tmp, i get permission denied. What am im doing wrong??? SD is mounted on phone, not pc storage mode. Help me.
WHen i do enter
$ adb shell cat /dev/msm_rotator
i get this. /dev/msm_rotator: invalid length so this works.
Thank you
Click to expand...
Click to collapse
What's the exact error you're getting when you run the command to push fre3vo?
Sent from my HTC Vision using XDA App

I finally go it to work. The problem was terminal on mac, have to first navigate to where platform -tools is then follower the guide. #g2root helped me a lot credit to them over there
Sent from my T-Mobile G2 using XDA App

I'm also on a mac and am having issues when I get to the point where I start to downgrade the ROM. I've downloaded the 2.2 ROM and Fastboot.exe and placed them both where my ADB is located. I then rebooted and I get the fastboot usb in red on my phone. Now the next step is where I have issues.
Below is what I get:
fastboot oem rebootRUU
-bash: fastboot: command not found
Has anyone had this issue or know how it could be solved? Could it be my Fastboot.exe file?
---------- Post added at 11:32 AM ---------- Previous post was at 11:14 AM ----------
eburms said:
I'm also on a mac and am having issues when I get to the point where I start to downgrade the ROM. I've downloaded the 2.2 ROM and Fastboot.exe and placed them both where my ADB is located. I then rebooted and I get the fastboot usb in red on my phone. Now the next step is where I have issues.
Below is what I get:
fastboot oem rebootRUU
-bash: fastboot: command not found
Has anyone had this issue or know how it could be solved? Could it be my Fastboot.exe file?
Click to expand...
Click to collapse
Nevermind, I just realized I had the PC fastboot

[Q] Desire Z - Upgrade to Android 4

Hi Everybody,
I know, that there are a lot of threats about this fact in the forum. But nothing will work for me, aspessially important links will not work anymore. Could anybody help me?
If I go to the bootloader (noise - and Power-On) there are the following informations written:
VISION PVT SHIP S-ON
HBOOT-0.85.0013
MICROP-0425
RADIO-26.10.04.03_MeMMC-boot
Apr 11 2ß11,23:36:27
HBOOT
OK, on my cell is working a Android 2.3.3, so I have to root my cell and downgrade.
I tryed to do this with the following threat: http://forum.xda-developers.com/showthread.php?t=905261
1. I Tryed to create a GOLDCARD. I read this threat, got the CID of my cell with the the code
Code:
adb shell cat /sys/class/mmc_host/mmc2/mmc2:*/cid
. Now I should type this CID in a webformular at this link to reverse it. This formular is still working, but there is also a Excel-Tool on this page for downloading, which should do the same. So my CID like "035344534d49202010000073b900d494" was reversed to "00d400b9730000102020494d53445303".
This code I should input to this formular for creating a GOLDCARD, but it doesn't work anymore.
So I looked around and found this threat, where a goldcardcreator is downloadable.
In this zip-file is included a program named "SimpleGoldCard", which read a reversed CID from the cell. On a command-Line I typed in
Code:
gcard -c 00d400b9730000102020494d53445303 -r -o "GoldCard.img"
Than I putted in the sd-Card into the Card-Reader of my Desktop, formatted it, used the tool "HeX Editor", copyed (line) 00000000 to offset (line) 00000170 (including the 00000170 line) and pasted it to the SD-Card.
After that I hope to created a correct GoldCard.
2. After that I downloaded the files psneuter, PC10IMG.zip and root. But in this threat is written, that I have to extract "misc_version_01.zip". Where is this file? I searched in this forum and downloaded a file named like this. Are there Differences or is a special version needed? I copyed the PC10IMG.zip to the SD-Card and put this to the cell.
3. then I booted the cell again, connected it to the desktop and used the following commands to put the downloaded files to the cell
Code:
adb push psneuter /data/local/tmp
adb push misc_version /data/local/tmp
adb shell chmod 777 /data/local/tmp/psneuter
adb shell chmod 777 /data/local/tmp/misc_version
adb shell /data/local/tmp/psneuter
adb shell
After that I should get the # - symbol instead of the $ - symbol which means, that I rooted the phone. But here is my first problem, I didn't get the # - symbol, so I don't have the permission to start the next programms.
4. Normally I would do next the following commands and then to reboot and flash the older Firmware.
Code:
/data/local/tmp/misc_version -s 1.33.405.5
exit
adb reboot bootloader
But when I reboot, the bootloader is looking for the PC10IMG.zip, is loading and checking this ... and gives me the information
CID incorrect!
Update Fail!
Press <POWER> to reboot.
Well, this is the next big problem.
Cold anybody tell me, where my mistakes are? I read 2 days in the forum, tryed a lot to get the final result, but now I don't have the time anymore to continue in this way.
THanks a lot. with best regards, Speedy8

Mods please move to q&a
Always check the stickies
http://forum.xda-developers.com/showthread.php?p=43195539
Follow the threads linked here, don't use any other to root your phone, they will either be outdated or cause you trouble.
After following these threads if you still have issues post back and I'll try to help ya
Best of luck!
Sent from my Nexus 4 using xda premium

well ... I searched again today ... and found the following threat, which was working on my cell-phone.
And also at the cyanogenmod-page you can find the relevant things to root the Desire Z. You can find it here.
Now I will first install the latest cyanogenmod, which is for the Desire Z not the Android 4, but at the moment newer than 2.3.3.
Thanks for answering, my Questions are answered.
With best regards.

[Q] How to root Desire Z without USB debugging

Hi. I did a factory reset and now I cannot get past the white HTC welcome screen. I don't have the phone rooted, hboot says S-ON. I had USB debugging disabled when doing the reset, so now I can't turn it on (since I won't get anywhere near the actual system).
Also, I don't know if this is the cause of not having USB debugging on - adb can't seem to find my device. When connected, it shows HBOOT USB PLUG, but adb devices returns an empty list..
Is there a way I can root/unlock the phone, without having debugging on, so that I can flash a recovery and a new system?
Thanks

Not too likely, adb will never work in bootloader mode but fastboot should. adb only works in os and recovery.
What you'll need to do is flash an RUU through bootloader or fastboot to get things working again. Check the development section here for a list of the latest RUUs for the vision
Sent from my Nexus 4 using XDA Premium 4 mobile app

I was swamped and got back to it by now. Thank you for your suggestion. It doesn't work though.
I downloaded the newest RUU from htcdev.com, the phone did get recognized by fastboot and the RUU installer seemed happy. However, when the actual update started, it got stuck on "Rebooting bootloader" or similar for over half an hour. That's when I decided to cancel it.
Next on, I tried steps shown here: androidforums .c o m/htc-desire-s/678126-desire-s-stuck-bootloader.html
fastboot erase cache - this got stuck on 'erasing cache', nothing happened afterwards
fastboot oem rebootRUU - this wrote "..." and nothing else happened
Is there anything else I can try?

ROOT
http://forum.xda-developers.com/showthread.php?t=2348266
http://forum.xda-developers.com/showthread.php?t=1178912
http://forum.xda-developers.com/wiki/HTC_Vision
How To Get R/W Access (Permanent Root / "Permaroot") using gfree v1.0[edit]
Prerequisites
Having the proper USB drivers installed - HTC Sync including Windows USB Drivers for the Vision
Disable auto-run or uninstall Visionary if you have it (It's important!)
adb (installed as part of the Android SDK.) See this guide on how to install/setup adb on your PC.
The HTC Desire Z with a firmware version higher than 1.34, T-Mobile G2 with a firmware version higher than 1.22 and the Desire HD with a firmware version higher then 1.32 have to be downgraded before proceeding.
Downgrading HTC Desire Z, T-Mobile G2 and Desire HD
For the 1.XX firmware HTC Desire Z follow this guide Downgrade DZ till step 12 and then come back.
For the 1.XX firmware HTC Desire HD follow this guide Downgrade HD and then come back.
For the 2.XX firmware HTC Desire Z/Desire HD and T-Mobile G2 follow this guide GUIDE Downgrade G2 2.13.531.8 (2.3.3 T-Mobile Rom w/ S-ON) & DZ 2.3.3 w/ S-ON" and come back. The history can be found in this thread New exploit works with Gingerbread! and Desire Z users see this posting of the thread Desire Z explanation.
Please use your brain when following these postings / guides. Especially make sure that you use a PC10IMG.zip for your device!
1. Necessary files
psneuter psneuter.zip (md5sum 89c2dec8d72d87b4c669f44dd31c8d17)
gfree v1.0 gfree_10.zip (md5sum 0bc9fc22bda897c765b02066f8a3c83b)
root_psn root_psn.zip (md5sum c8fe38ef55eb8951def9ff17b2eb99c1)
Superuser package su-2.3.6.2-efgh.zip (md5sum 43d9a40b63e916635d5ad7ca32433fab)
1.1. engineering hboot
Download the appropriate HBOOT for your phone:
T-Mobile G2: vision.hboot-0.76.2000.zip / Mirror (md5sum 7669AE12DC2FAA10AE555A164980EFD0)
HTC Desire Z: vision.hboot-0.84.2000.zip / Mirrors in this thread (md5sum 2CE1BDD5E4C1119CCFCECB938710D742)
HTC Desire HD: ace_glacier.hboot-0.85.2007.zip (md5sum df4fd77f44993eb05a4732210d2eddc6)
Note that the md5sums are for the actual hboot img contained within the zip file, not the for the zip file itself. Note also that the dz, g2, and dhd each use their own version of the engineering boot, as the phones are partitioned differently. (If you have previously installed the wrong HBOOT for your phone, you may need to reflash everything after partition 18)
1.2. clockwork recovery
Download the appropriate clockwork recovery for your phone:
ClockworkMod Recovery 5.0:
T-Mobile G2 and HTC Desire Z: recovery-clockwork-5.0.2.7-vision.img (md5sum 87a428549440894dbe2f96dd5efc4fb5)
HTC Desire HD: recovery-clockwork-5.0.2.0-ace.img (md5sum b8d77b9352dcbb41839e45342ea35658)
ClockworkMod Recovery 5.8 (touch):
T-Mobile G2 and HTC Desire Z: recovery-clockwork-touch-5.8.1.0-vision.img (md5sum b21aa5a0d593b6ebce880be3316ff64a)
HTC Desire HD: recovery-clockwork-touch-5.8.1.5-ace.img (md5sum fd6abfbc459663455a25b88ca7d77442)
Rename the file to 'recovery-clockwork.img'.
2. Copy the files to the phone
Before you can adb as described below you need to enable debugging in the settings on the phone. In Settings go to "Applications -> Development" and check the "USB debugging" option.
Connect the phone to the USB of your PC. The phone will stay connected during the complete procedure.
Make sure that you do NOT turn on USB storage. There has to be a sdcard in the phone and it has to be mounted to the phone!
In the commands to run below, $ or # represent the prompt and should NOT be entered as part of the commands (in Windows this will be something like C:\> instead).
Unpack all the zip files to a directory on your PC. Open a terminal (or command window) on your PC and change the current directory to where the files are on your PC and execute these commands:
$ adb push psneuter /data/local/tmp/
$ adb push gfree /data/local/tmp/
$ adb push busybox /data/local/tmp/
$ adb push hboot-eng.img /data/local/tmp/
$ adb push root_psn /data/local/tmp/
$ adb push su /sdcard/
$ adb push Superuser.apk /sdcard/
$ adb shell chmod 755 /data/local/tmp/*
2. clockwork recovery for T-Mobile G2 and HTC Desire Z
To copy your clockwork recovery execute the following command in the terminal or command window
$ adb push recovery-clockwork.img /data/local/tmp/recovery.img
3. Temporary root
In the terminal (or command window) execute these commands:
$ adb shell /data/local/tmp/psneuter
$ adb shell
after the last command you should have a root shell in adb (this is indicated by a # prompt). Leave this terminal (or command window) that contains the root shell open.
4 S-OFF, root and its friends Super-CID, SIM-unlock, engineering hboot, clockwork recovery and root
In the following section we are trying to gain write access to the emmc by power cycling it.
We recommend to install the engineering hboot as part of the gfree procedure.
In the root shell (indicated by the #) that you got in the Temporary root section execute the following commands:
# cd /data/local/tmp
# ./gfree -f -b hboot-eng.img -y recovery.img
# ./root_psn
# sync
Wait a few seconds for the changes to "take".
4.1. Automatic gfree hboot verification
As it is very important that the hboot was installed correctly gfree calculates md5sums of the partition. It will calculate the following 3 checksums
md5sum #1 - checksum of partition 18 before the installation
md5sum #2 - checksum of the hboot image that should be installed
md5sum #3 - checksum of partition 18 after the installation
gfree will check the md5sums and give you a proper success or error message. The messages are explained in detail at gfree-wiki
The messages that you want to see are either:
md5sum #1 == md5sum #2 - the hboot image is already installed -> skipping installation
or
md5sum #3 == md5sum #2 - the hboot image was successfully installed -> OK!
If you get a different error message you should run for help at #G2ROOT on Freenode.
If you got one of the two success messages described above -> You are fine, Reboot your phone by executing the following command in the root shell (indicated by the #):
# reboot
5. Verify the success of gfree
You can verify the success of gfree by using gfree_verify.
Download gfree_verify.zip from gfree_verify_v01.zip (md5sum 8e3535fd720d19fa0aec4eb711b897c4)
Unzip gfree_verify_v01.zip to a place on your PC.
Open a terminal (or command window) on your PC and change the current directory to where the files are on your PC and execute these commands:
$ adb push gfree_verify /data/local/tmp
$ adb shell chmod 755 /data/local/tmp/gfree_verify
$ adb shell
In this shell:
Remark: When you run su for the first time in the adb shell make sure the the screen of the phone is unlocked. Because when you enter the command the Superuser app will show up and ask you if you want to grant superuser access to app Unknown (2000).
Check the Remember check box and click allow.
$ su
# cd /data/local/tmp
# stop ril-daemon
# ./gfree_verify
You should see the following output:
gfree verify_cid returned:
@cid: 11111111
OK
gfree verify_secu_flag returned:
@secu_flag: 0
OK
gfree verify_simlock returned:
@simlock= 00
OK
Start the interface layer again (IN THE ADB SHELL ON YOUR PC):
# start ril-daemon
Did it work? Here's what you're looking for:
@cid: 11111111 <--- this response means you have superCID!
@simlock= 00 <--- this means your simlock is off.
@secu_flag: 0 <--- this means your radio is S-OFF.
6. Backup and cleanup
During the process gfree created backups of the partitions that it changed on your sdcard in /sdcard/
The files are called /sdcard/part7backup-.bin, part18backup-<time>.bin (if you installed hboot) and part21backup-<time>.bin. It is highly recommended that you copy these files to a save location on your PC and keep them!
You can delete the files in /data/local/tmp they are not needed anymore.
7. Next steps
Find a custom rom that you would like to install and install it using the clockwork recovery.
Enjoy the freedom of your phone.
If you like free phones and our work we would like to ask you to support the EFF.
Support the EFF[edit]
or
http://forum.xda-developers.com/showthread.php?t=1097977