Downgrading Thunderbolt 4G - Thunderbolt Q&A, Help & Troubleshooting

Hi...
Is there a chance to downgrade an HTC Thunderbolt 4G from Gingerbread to Froyo? (2.11.605.9 to any 1.xx) withour ROOT?
Is there a chance t brick my Thunderbolt if I tried??
Thanks for any advice

No. To flash a rom you need s-off. To keep a froyo rom from updating you need a custom froyo rom with root.
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Thanks a lot
So, If I have the 2.11.605.9 I can't return my Thunderbolt to any 1.xx?
Even if I go rooted?

Sure you can. Once rooted, flash the FroYo radios, then the FroYo ROM.
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Thanks a lot...is there any kind of guide for do this????
I'm relly interested in doing this....

I already Unlock the Thunderbolt using HTCDev Unlock....now what more I need to do?

I used this guide to downgrade http://www.thunderboltforums.com/fo...f-after-updating-latest-ota-2-11-605-9-a.html
then root with this:
http://www.thunderboltforums.com/fo...ry-5-minutes-less-root-without-data-loss.html
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Im stuck on the downgrading I download the .zip file and check it with MD5 and is good just when I trie to do it the phone start to scan HBOOT and at the end appears not file found...wrong... or something like that very quick to see it but don't let me press up or down volume keys since never appear that option....
What can I do for make that downgrade!!?? Because the .9 can't be rooted as long as I now

Make sure the file is named correctly, and NOT in a folder on your sd card.
Also, make certain you have 40%+ of battery and that sd is FAT32 format.
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Related

Gb back to froyo backup.

Is it as easy as flashing the backup in cwm or do I have to flash the stock radio in recovery 1st?
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Depends on which froyo backup you have. If it's one of the newer froyo builds then it's compatible with the newest radios. If it's an older froyo build then you have to go back to the old radios.
It's stock rooted. 2.2.1
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It's gingersense 1.1 currently. I have a bu of stock rooted and thundersense also....
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Anyone? Please.. ?
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brandon2x said:
Anyone? Please.. ?
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Click to expand...
Click to collapse
Your question was answered.. but I think you didn't quite follow. Like one of the posters said.. if your Froyo Backup is that of a NEWER Froyo backup (MR2 Froyo software no. 1.66.xx).. then yes.. you can restore GB & Froyo Backups back and forth without any issue since they both work on the same radio.
If your Froyo is older.. then you'd have to flash the appropriate radios every time you restore.
That's why I posted which backups I have... I'm not too sure about them... The one is the latest official software. Is that what you mean by newer froyo software?
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brandon2x said:
That's why I posted which backups I have... I'm not too sure about them... The one is the latest official software. Is that what you mean by newer froyo software?
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Click to expand...
Click to collapse
Your not going to hurt anything. If you want to restore your Froyo backup go ahead. If it boots up and dosent have service then its an older build and you will need to flash a older radio. This one should work.
http://www.multiupload.com/V2ED7Y5EU2
If that radio dosent work or you would like to see the thread it came from it is:
http://forum.xda-developers.com/showthread.php?t=1045081
Edit: From your post eariler, you flash radios in HBOOT, rename the radio file to PG05IMG.zip and place in the root of your sd card. Boot into HBOOT (phone off, hold volume down and power) phone will flash the radio. The ROMS are flashed in recovery.
Edit2: After you are done flashing the radio file, after the phone reboots, delete or rename the radio file so it dosent try to reflash the next time you go into HBOOT. ok im done editing now.
RootandBoot said:
Your not going to hurt anything. If you want to restore your Froyo backup go ahead. If it boots up and dosent have service then its an older build and you will need to flash a older radio. This one should work.
http://www.multiupload.com/V2ED7Y5EU2
If that radio dosent work or you would like to see the thread it came from it is:
http://forum.xda-developers.com/showthread.php?t=1045081
Edit: From your post eariler, you flash radios in HBOOT, rename the radio file to PG05IMG.zip and place in the root of your sd card. Boot into HBOOT (phone off, hold volume down and power) phone will flash the radio. The ROMS are flashed in recovery.
Edit2: After you are done flashing the radio file, after the phone reboots, delete or rename the radio file so it dosent try to reflash the next time you go into HBOOT. ok im done editing now.
Click to expand...
Click to collapse
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Sweet. This the info I needed. Thanks a lot man!
Just for anyone else's reference, I had to flash the old radio... Working great now though....
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brandon2x said:
Just for anyone else's reference, I had to flash the old radio... Working great now though....
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Click to expand...
Click to collapse
Ah sorry I didn't get back to the thread sooner. It makes sense that if it was an older froyo build you'd need the old radios. There were only a small handful of ROM's for the new radios and they came out pretty recently.

Please help WiFi and 4G does not work on EVO3D

I need help to get WiFi to work on ny EVO3D. I unlocked htc bootloader. Then rooted installed pcmix kernal and now no WiFi or 4g. Can anyone tell me how to fix. Please help I will pay for correct answer
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Did you try reverting back to the stock kernel and checking if that worked?
ryansoaz said:
I need help to get WiFi to work on ny EVO3D. I unlocked htc bootloader. Then rooted installed pcmix kernal and now no WiFi or 4g. Can anyone tell me how to fix. Please help I will pay for correct answer
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Click to expand...
Click to collapse
That kernel isn't for the 2.3.4 update. It's for 2.3.3. You need to flash the stock kernel or reflash your ROM.
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How do I flash orginal ROM
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ryansoaz said:
How do I flash orginal ROM
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Click to expand...
Click to collapse
Go to this thread: http://forum.xda-developers.com/showthread.php?t=1223979
That is for the 2.08 OTA update. Download an odexed or de-odexed ROM and then place in on your phone's SD card. Turn on the phone, take out the battery, put it back in and hold volume down and the power button. When you are in the HBOOT menu, use the volume button to scroll down to recovery and press power to select it. There will be an option to flash a ROM from somewhere there and just choose the ROM from your SD card and flash it.
How do i go back to stock kernal
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Let me try if this works can I donate to you
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Revert back to 2.3.3

If I wanted to go back to 2.3.3 where can I find those files. Or can i just flash the ruu for 2.3.3?
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??
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Depends, did you take the OTA or did you install a custom rom to get to 2.3.4. If you took the OTA and you weren't rooted before I don't know if you can go back. The HTC unlocker method of rooting will not let you install a kernel so I don't believe you will be able to flash a 2.3.3 rom since it will require an compatible kernel.
If your on 2.3.4 taking the ota then there is no way to go back to 2.3.3
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cruise350 said:
Depends, did you take the OTA or did you install a custom rom to get to 2.3.4. If you took the OTA and you weren't rooted before I don't know if you can go back. The HTC unlocker method of rooting will not let you install a kernel so I don't believe you will be able to flash a 2.3.3 rom since it will require an compatible kernel.
Click to expand...
Click to collapse
I took the custom ROM method.
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Then u should be good to go. Just remember when you take the ruu method you will loose everything
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another relock question

hey xda like ive always said thanks for all the help
im on a custom recovery 1.5 s-on, my question is i want to update to 2.17.....
so i go and relock am i still running the custom rom?(myns)and if so why, and do i still take the ota even though im relocked but still on a custom rom? ive also read i need to apply the stock ruu, how is that possible if im not rooted anymore?
thanks tons
tammyjustin said:
hey xda like ive always said thanks for all the help
im on a custom recovery 1.5 s-on, my question is i want to update to 2.17.....
so i go and relock am i still running the custom rom?(myns)and if so why, and do i still take the ota even though im relocked but still on a custom rom? ive also read i need to apply the stock ruu, how is that possible if im not rooted anymore?
thanks tons
Click to expand...
Click to collapse
Ok, I'm no pro but ill try to help a little. I think if you relock you'll still be on the ROM you were on before you relocked, and you don't need to be rooted to run an ruu. After you run the ruu, you won't be rooted and it will be a stock ROM.
thanks, do I need to have the stock ruu on the sd prior to relocking?
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tammyjustin said:
thanks, do I need to have the stock ruu on the sd prior to relocking?
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Click to expand...
Click to collapse
Ive never run an ruu, but if I did, this is what is do. Download the ruu.EXE, not the ruu.zip, to my computer. Then plug in my phone, then relock, then run the ruu.exe from the comp. I don't think it needs to be on the SD card. If I'm wrong, I'm sure ill be corrected by someone.
http://forum.xda-developers.com/showthread.php?t=1513247
This thread might help you.
thanks guys
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See the guide/flashing notes in my signature for links/info to run either the Ruu .exe or .zip.
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I just did mine.
Adb to bootloader
Flash stock recovery
Oem lock
Ruu.exe
Update
Unlock
Flash cwm or twrp
Push su
Flash ROM of choice
Relatively simple, sorry I am half asleep on my phone or I would have greater detail but that's the steps I've used 2x
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thanks so much I will try
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Wire trick

Hey xda just wondering if I can do the wire trick on a custom Rom, I'm on Mean Rom ICS...it says to be on a stock rooted though. Has anyone done this on a custom?
Thanks
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tammyjustin said:
Hey xda just wondering if I can do the wire trick on a custom Rom, I'm on Mean Rom ICS...it says to be on a stock rooted though. Has anyone done this on a custom?
Thanks
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Click to expand...
Click to collapse
I tried this method on a custom ROM without success but i had a rooted stock rom at hand so i preferred to flash that ROM to apply the method.
However I think it could work if the ControlBear program finds the paths it expects on the filesystem.
In particular it looks for /system/bin/su or /system/xbin/su.
So maybe, after a nandroid backup, you can proceed trying the method on the rom as is and, if ControlBear complains, move the programs it wants in the right path.
I think that proceeding in this way can't harm your phone, however, haven't tried this solution myself I don't know for sure.
thanks man, im downloading a stock rooted pg file right now, i just rename it and put it on sd card and reboot to bootloader?
Comments withdrawn
zcink said:
Really, what is wrong with flashing a stock GB rooted rom first?
Is it too much trouble?
I think screwing up your phone and having regrets is even worse that the extra time it takes to do it right.
Click to expand...
Click to collapse
i am gonna flash a stock rooted 2.17 rom
Hey man do u have a link to a rooted stock 2.17 IMG?everyone I've tried says its malicious
Thanks
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Comments withdrawn
Just downloaded the 2.17 stock rooted zip file. I just rename it and adb into bootloader?
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