main version is older! - HTC Rezound

Ok so I'm trying to flash Clean Rom ICS 1/22 version
I did all the steps they said to in the instructions "I also made sure I had no PH files or I made sure I already deleted them"
I keep getting this
Main version is older!
update fail
press <power to rebot>
I then have to take the sd card out, get into recovery, put sd card back in and then USB mount the sd card to erase the ph file that the rom installed..
I'm so frustrated by this.
I was currently running the rom below with a custom kernal

http://forum.xda-developers.com/showthread.php?t=1456883
Sent from my ADR6425LVW using XDA Premium.

I did the same thing... What I've done is downloaded a few ROMs to my SDcard, but I've edited the .zip before putting them on. I went into the kernel folder, and edited the android-info.txt to match that leaked mainver number. After I saved that file, i went into the PH98IMG.zip and edited the android-info.txt file in there. Now I don't have to worry about getting stuck if I don't have a computer handy to do a fastboot

The next OTA update will fix this big mess, and hopefully we all learn from this lol. I sure have!

andybones said:
The next OTA update will fix this big mess, and hopefully we all learn from this lol. I sure have!
Click to expand...
Click to collapse
Not to flash leaks unless you are a Dev... or very experienced user/rooter/flasher of Android devices?

Related

[Q] Help please....TWRP ROM Install Error

Keep getting the following message for every ROM I attempt to install:
-- Install /sdcard/download...
Finding update package...
Opening update package...
E: Can't open /tmp/sideload/package.zip
(bad)
Please anyone, whats my resolution to this matter. Thanks in advance!
HackDPlanet said:
Keep getting the following message for every ROM I attempt to install:
-- Install /sdcard/download...
Finding update package...
Opening update package...
E: Can't open /tmp/sideload/package.zip
(bad)
Please anyone, whats my resolution to this matter. Thanks in advance!
Click to expand...
Click to collapse
What version of TWRP are you on?
My only other thought would be that the roms aren't downloading correctly for some reason or another, check the size of the file downloaded to the actual size its supposed to be.
Im using the latest version of TWRP. I flashed the following .img:
recovery-twrp-shooter-1.0.2.img
HackDPlanet said:
Im using the latest version of TWRP. I flashed the following .img:
recovery-twrp-shooter-1.0.2.img
Click to expand...
Click to collapse
My guess is a bad download then, possibly you aren't getting the whole file when you download it?
I'm redownloading see if thats the fix. I initially downloaded directly to phone. I am downloading to computer now and will drop into SD card and see what happens from there. Cross your fingers!!!!!
HackDPlanet said:
I'm redownloading see if thats the fix. I initially downloaded directly to phone. I am downloading to computer now and will drop into SD card and see what happens from there. Cross your fingers!!!!!
Click to expand...
Click to collapse
With the size of the roms for the 3D I would highly recommend always just doing it on your computer. I almost guarantee that is your issue, not 100% sure but not just a shot in the dark.
HackDPlanet said:
I'm redownloading see if thats the fix. I initially downloaded directly to phone. I am downloading to computer now and will drop into SD card and see what happens from there. Cross your fingers!!!!!
Click to expand...
Click to collapse
NO GO!?!?! I wiped and attempted again and nothing. SAME ERROR MESSAGE. Quick question: The background image when choosing to zip to flash, is it a box with question marks? Just wondering maybe something is wrong with my tmrp.
I dont get it and dont know what to do. Should I push the root .zip again to see what happens, if anything?
Please HELP! SOS SOS SOS SOS SOS
All XDA gurus, I call for your powers! I have read the in and outs of the EVO 3D pages and have not found one single person running into the same issue.
HackDPlanet said:
NO GO!?!?! I wiped and attempted again and nothing. SAME ERROR MESSAGE. Quick question: The background image when choosing to zip to flash, is it a box with question marks? Just wondering maybe something is wrong with my tmrp.
I dont get it and dont know what to do. Should I push the root .zip again to see what happens, if anything?
Please HELP! SOS SOS SOS SOS SOS
All XDA gurus, I call for your powers! I have read the in and outs of the EVO 3D pages and have not found one single person running into the same issue.
Click to expand...
Click to collapse
Try running the PC86IMG.zip from your bootloader instead of pushing the img file for TWRP. My only guess is that for some reason or another it is something to do with the recovery.
Could you provide me some directions really quick, detailed? Just want to make sure i get this right. Ya dig lol. Man I am so discouraged right now. Im missing my Hero lol. Ouch no, i didnt just say that. nevermind
I have the following directions:
Install as a Flashable Zip? [RECOMMENDED]
1.Download flashable zip from the OP and rename it "PG86IMG.zip" (without the quotes)
2.Place in the root of the sdcard
3.Power off phone (make sure you turn off hot boot or pull the battery when it's off)
4.Power on the phone holding power and volume down
5.Follow the prompts to flash it
6.Delete .zip (PG86IMG.zip) after booting
7.Enjoy
I have read over and over that you will be "prompted" to flash as update or whatever, but I never get this option. I basically just load into hboot. Am I missing a step here or what?
HackDPlanet said:
Could you provide me some directions really quick, detailed? Just want to make sure i get this right. Ya dig lol. Man I am so discouraged right now. Im missing my Hero lol. Ouch no, i didnt just say that. nevermind
Click to expand...
Click to collapse
Alright, I am just gonna copy the how to from the TeamWin thread but this should be alot easier than doing the push of the .img file.
Install as a Flashable Zip? [RECOMMENDED]
Download flashable zip from the OP and rename it "PG86IMG.zip" (without the quotes)
Place in the root of the sdcard
Power off phone (make sure you turn off hot boot or pull the battery when it's off)
Power on the phone holding power and volume down
Follow the prompts to flash it
Delete .zip (PG86IMG.zip) after booting
Enjoy
Click to expand...
Click to collapse
Here is the zip: http://api.viglink.com/api/click?fo...er-1.0.2.zip&jsonp=vglnk_jsonp_13125241678211
Just read what you posted before I posted that. If you are not being prompted for an update then the file isn't renamed properly. You don't need to add .zip when you rename it because it is already a zip file.
Ok, I made sure the file name was correct. When loading, it slowed up on that .zip but never prompted me to do anything?
Oh and still getting the same message when trying to install ROM. It was different this time around with the slowing up when booting like it did something but it never prompted me to do any action. I really dont know man, I am clueless.
HackDPlanet said:
Oh and still getting the same message when trying to install ROM. It was different this time around with the slowing up when booting like it did something but it never prompted me to do any action. I really dont know man, I am clueless.
Click to expand...
Click to collapse
Hmmm so you did update the recovery or still not able to?
Second guessing myself now, root of the SDcard is just anywhere in the SDcard not within a folder, correct? Just want to make sure, trying to over all my bases. Jeeeze, I did not have this type of trouble with my Hero. I am feeling like a Noob but this is challenging me.
It did not prompt me to update the recovery. It simply slowed down during the .zip verification process when it was booting and than it kept going. Nothing more, no prompt for my action to update.
HackDPlanet said:
It did not prompt me to update the recovery. It simply slowed down during the .zip verification process when it was booting and than it kept going. Nothing more, no prompt for my action to update.
Click to expand...
Click to collapse
The file just needs to be placed on the SD plain and simple no folders etc.
I still think this is a naming issue because it should prompt you to press the volume up to update. Rename the file to just PC86IMG and see if that works.
Oh and the renaming part is case sensitive.
Ok, I read what it said "wrong zipped image" when the process slowwed down during the boot up
And I named it only "PC86IMG". and than when i look at the file through AstoZip than the it shows as "PC86IMG.zip" The ending (.zip) automatically is added.

[Q] Installing updates after rooting?

So, I've used Revolutionary to S-off and root, but now there's a system update (I assume for the security vulnerability that was found a week or two ago). I'd like to install this update, but it just fails when I try... Does anyone know how to turn it into a flashable zip, or will I have to un-s-off/root, update, then re-s-off/root?
A hotfix for the vulnerability is not out yet - you tought HTC is that fast But if you can find it you can remove /system/app/HtcLoggers.apk from your rooted Flyer (with an app like File Expert that can mount partitions like /system).
Since you are still stock you might have been offered an incremental update, but I guess soon you will want to flash a custom ROM that already includes it anyway.
Lucas0511 said:
A hotfix for the vulnerability is not out yet - you tought HTC is that fast But if you can find it you can remove /system/app/HtcLoggers.apk from your rooted Flyer (with an app like File Expert that can mount partitions like /system).
Since you are still stock you might have been offered an incremental update, but I guess soon you will want to flash a custom ROM that already includes it anyway.
Click to expand...
Click to collapse
It appears there's a new update today, and it's only about 4.5 megs - I think HTC may actually be that fast
I really don't want to install a ROM, I just want stock with root (to help with development)... Any suggestions appreciated!
To answer my own question, I downloaded the OTA on the device, then I used adb to copy it to my computer (it's in /sdcard/downloads/). I edited the zip so that it wouldn't flash the recovery (there's a recovery.img in firmware.zip inside the OTA zip - remove it), copied it to the external SD card, then flashed it via ClockworkMod (it won't update via the HTC updater).
Something to make sure of, you MUST be running stock - it patches files rather than reinstalls them, so this will fail if there are any differences. This includes build.prop. You can make any changes you like after flashing of course.
Don't forget to backup before doing anything of course! Another warning, ClockworkMod fails silently if your SD card doesn't have enough room for the backup, so make sure you have plenty of space beforehand too!
Hope this helps someone.
Cwiiis said:
To answer my own question, I downloaded the OTA on the device, then I used adb to copy it to my computer (it's in /sdcard/downloads/). I edited the zip so that it wouldn't flash the recovery (there's a recovery.img in firmware.zip inside the OTA zip - remove it), copied it to the external SD card, then flashed it via ClockworkMod (it won't update via the HTC updater).
Something to make sure of, you MUST be running stock - it patches files rather than reinstalls them, so this will fail if there are any differences. This includes build.prop. You can make any changes you like after flashing of course.
Don't forget to backup before doing anything of course! Another warning, ClockworkMod fails silently if your SD card doesn't have enough room for the backup, so make sure you have plenty of space beforehand too!
Hope this helps someone.
Click to expand...
Click to collapse
Removing the recovery.img? I've rezipped everything and it's only 510kb now, surely that cant be it?
Recovery.img's are large files it was just a minor updat to probably fix a couple internal things nothing major. It was a small file at 4mb already.
Hy
Can you please upload the edit-update?
Thanks
ric242 said:
Hy
Can you please upload the edit-update?
Thanks
Click to expand...
Click to collapse
Will do once i'm home!
adaimespechip said:
Will do once i'm home!
Click to expand...
Click to collapse
Thanks! Might be able to make it into a flash able zip.
Cwiiis said:
To answer my own question, I downloaded the OTA on the device, then I used adb to copy it to my computer (it's in /sdcard/downloads/). I edited the zip so that it wouldn't flash the recovery (there's a recovery.img in firmware.zip inside the OTA zip - remove it), copied it to the external SD card, then flashed it via ClockworkMod (it won't update via the HTC updater).
Something to make sure of, you MUST be running stock - it patches files rather than reinstalls them, so this will fail if there are any differences. This includes build.prop. You can make any changes you like after flashing of course.
Don't forget to backup before doing anything of course! Another warning, ClockworkMod fails silently if your SD card doesn't have enough room for the backup, so make sure you have plenty of space beforehand too!
Hope this helps someone.
Click to expand...
Click to collapse
Thanks for the helpful guidelines...
Just a quick question and pardon me since I am a newcomer to Android universe. What do You mean when You say stock?
Thanks again...
BTY
HTC_Flyer / Revolutionary / CWM

.28 Update Failed

I am rooted on .21.
I backed up via RootKeeper and went ahead to install the update. On installation after rebooting, an android logo came up with a red triangle with an exclamation point in the middle.
My prime rebooted and I got a notification saying update failed and my firmware was restored back to .21 with my root intact.
Now when I check for an update, my Prime says no update was found. I have tried rebooting several times too.
Any ideas?
EDIT:
I am going to try the manual update on this manual:
http://dlcdnet.asus.com/pub/ASUS/EeePAD/TF201/e7203_TF201_Update_SOP.pdf
Remember to unzip and add the zip that you unzipped to the Micro SD.
I got impatient and did Method 2 on this tutorial: http://forum.xda-developers.com/showthread.php?t=1622628
And since I lost root because I was reckless: http://forum.xda-developers.com/showthread.php?t=1706588
I hope this thread helped everyone. I can now say it is solved!
someone can give me a turtial to install the 28 update manually?
gtrs36 said:
someone can give me a turtial to install the 28 update manually?
Click to expand...
Click to collapse
http://usa.asus.com/Eee/Eee_Pad/Eee_Pad_Transformer_Prime_TF201/#download
Download the correct SKU
Copy the file over to the root directory I believe....
But this will erase all your data I think. Which is why I do not want to do that.
Possible Solution!
Okay. So, I was having the same issue. I redownloaded the US version and put on root of my microsd card with same result. Now I was getting frustrated. Just for sh1tz and giggles, I put a copy of the firmware in the root of my sdcard (i left the original in the root of my microsd card also). I then took the microsd card out and put back in. This time i got the triangle notification in the lower right corner notifying me of the update as usual. I pressed on the triangle and it showed TWO files! I picked the latest one by time and date because that is the one I put in the SDCARD root location and....wait for it.....VOILA....it worked. Don't ask me why!
cyiam40 said:
Okay. So, I was having the same issue. I redownloaded the US version and put on root of my microsd card with same result. Now I was getting frustrated. Just for sh1tz and giggles, I put a copy of the firmware in the root of my sdcard (i left the original in the root of my microsd card also). I then took the microsd card out and put back in. This time i got the triangle notification in the lower right corner notifying me of the update as usual. I pressed on the triangle and it showed TWO files! I picked the latest one by time and date because that is the one I put in the SDCARD root location and....wait for it.....VOILA....it worked. Don't ask me why!
Click to expand...
Click to collapse
Would this not allow you to root?
cyiam40 said:
Okay. So, I was having the same issue. I redownloaded the US version and put on root of my microsd card with same result. Now I was getting frustrated. Just for sh1tz and giggles, I put a copy of the firmware in the root of my sdcard (i left the original in the root of my microsd card also). I then took the microsd card out and put back in. This time i got the triangle notification in the lower right corner notifying me of the update as usual. I pressed on the triangle and it showed TWO files! I picked the latest one by time and date because that is the one I put in the SDCARD root location and....wait for it.....VOILA....it worked. Don't ask me why!
Click to expand...
Click to collapse
I downloaded the US firmware, put it on my micro SD root, my /sdcard folder, my / folder, and still nothing. Even after rebooting. What could be the problem?
Plus checking for update yields nothing.
See root posts, SparkyM3 has fixed that. Rooted just fine.
xTRICKYxx said:
I downloaded the US firmware, put it on my micro SD root, my /sdcard folder, my / folder, and still nothing. Even after rebooting. What could be the problem?
Plus checking for update yields nothing.
Click to expand...
Click to collapse
I am in the same boat at the moment, factory data reset didn't help either so don't bother.
So how the hell do we update to .28?!?!
Is there anything we can do to redownload the update and try reinstalling?
xTRICKYxx said:
So how the hell do we update to .28?!?!
Is there anything we can do to redownload the update and try reinstalling?
Click to expand...
Click to collapse
I just gonna leave my tablet for a day and see if its cause the server is caching that we did a update. I guess if worse comes to worse we could do a downgrade, but too much of a hassle for me at the moment.
HiddenSanctum said:
I just gonna leave my tablet for a day and see if its cause the server is caching that we did a update. I guess if worse comes to worse we could do a downgrade, but too much of a hassle for me at the moment.
Click to expand...
Click to collapse
That's what I've been thinking too. I may do a hard reset, root, use rootkeeper, and then go to .28....
Lots of time and energy and I'd rather not do that!
xTRICKYxx said:
That's what I've been thinking too. I may do a hard reset, root, use rootkeeper, and then go to .28....
Lots of time and energy and I'd rather not do that!
Click to expand...
Click to collapse
I already did a hard reset, no luck
You have to unzip the download which should contain another zip, that zip goes onto your internal or micro SD card.
Problem Solved
I found the problem. You need to unzip the manual update file first and you'll get another zip file. Put that into your microSD card and then you should see the new firmware detected icon.
Problem has to do with the fact that we edited something in the system files I believe.
Once you update it to .28 You'll need this to root again
More information on the issue: http://forum.xda-developers.com/showthread.php?t=1707362&page=1
Hope this helps!
From failed .28 update to SUCCESS! (But now must reroot)
Downloaded the update manually from support.asus.com (enter tf201 and find ur appropriate version... For me US), and download it to your removable/external microsd card. Extract it to the root directory of the card, and rename it to EP201_SDUPDATE.zip (***if u don't see the .zip extension, don't add it - this means the file manager you're using doesn't display extensions, and if you add ".zip" the filename will end up as EP201_SDUPDATE.ZIP.ZIP which won't work)
Once you have the file extracted, renamed, and in the right place, hold down "volume down" + power, and dont let go until it reboots AND you see text at the top of the black screen... Then press "volume up" within 5 seconds to install the update. You should see the "Andy with blue nuclear fission ball" animation as the update runs.
Now go find the .28 root method, reroot, and party on.
Btw, I found this in the "bricked after update to .28" thread, but it works for failed updates as well. Hope this helps.
YOU NEED TO UNZIP THE INITIAL .ZIP YOU DOWNLOAD. THE FILE YOU NEED WILL NOT HAVE UPDATELAUNCHER IN THE NAME! Inside of that is the .zip you want. You can unzip that or not. I can confirm it works both ways.
Put the .zip within a .zip on the root of /Removable/microsd/ or /sdcard/ . Safely remove you sd, then reinsert if you choose to use your removable card. I did not have to reboot.
Sent from my Transformer Prime TF201 using Tapatalk
I'm glad people found out our mistakes! I went a little different route and did this:http://forum.xda-developers.com/showthread.php?t=1622628
I did Method 2 since I did a hard reset desperately. I will now re-root using this:
http://forum.xda-developers.com/showthread.php?t=1706588
xTRICKYxx said:
I am rooted on .21.
I backed up via RootKeeper and went ahead to install the update. On installation after rebooting, an android logo came up with a red triangle with an exclamation point in the middle.
My prime rebooted and I got a notification saying update failed and my firmware was restored back to .21 with my root intact.
Now when I check for an update, my Prime says no update was found. I have tried rebooting several times too.
Any ideas?
EDIT:
I am going to try the manual update on this manual:
http://dlcdnet.asus.com/pub/ASUS/EeePAD/TF201/e7203_TF201_Update_SOP.pdf
Remember to unzip and add the zip that you unzipped to the Micro SD.
I got impatient and did Method 2 on this tutorial: http://forum.xda-developers.com/showthread.php?t=1622628
And since I lost root because I was reckless: http://forum.xda-developers.com/showthread.php?t=1706588
I hope this thread helped everyone. I can now say it is solved!
Click to expand...
Click to collapse
OK some guys just like to complain. Just read the forums and nd have some patience.
There a lot of smart people here, they will figure out your problem.
I did the manual d/l and then rooted with sparky method, worked like a charm! Thanks for the support fellow XDA'ers!
Can someone please post a copy of the ORIGINAL build.prop from the .21 firmware please. thanks
Sent from my Transformer Prime TF201 using xda premium

Unlocked - I have 2.3.5 update files, will this help?

I haven't seen anyone post this yet but I have an unlocked photon and I downloaded the 2.3.5 update to see the files and where they are placed. I found files placed in /cache
Blur_Version.45.3.6.MB855.Sprint.en.US.crc inside is the number 2792078675
and
Blur_Version.45.3.6.MB855.Sprint.en.US.zip
and
downloadfile.apk
weird thing is that "downloadfile.apk" shows up at 0.0kb and after moving it to sd card it is still 0.0kb. It's completely empty!?
The two Blur files show 0.0kb and they were last updated dec 31 1969 at 7pm. then when you move to sd card the .crc file is 1kb and the .zip file is 127,594kb.
I'll get a change to upload it maybe tomorrow if anyone wants to look at it.
after moving the files to sd card the update reminder stopped popping up and showed an error or something about not being able to update blah blah. I'll try to find out exactly and repost. I was thinking maybe we can trick the phone into thinking something we made is an official update. I'm sure its checked at some level though. I'll dig deeper and any insight regarding this would be appreciated.
If you be so kind, I would love a copy of the update.
Sent from my Slim Photon using xda app-developers app
tdhite said:
If you be so kind, I would love a copy of the update.
Sent from my Slim Photon using xda app-developers app
Click to expand...
Click to collapse
I'll try to upload it tonight. I tried editing the update and placing it back in the /cache where I found it and it recognized it and asked me to install it but it tried and rebooted and I got an error. It said it could not install. So I guess there is some md5 or some other check done before the install.
Do not flash this if you are unlocked, it will relock and possibly soft-brick your phone, if relocked you will not be able to unlock again. This is not new, we have had this file for a while.
Lightsword1942 said:
Do not flash this if you are unlocked, it will relock and possibly soft-brick your phone, if relocked you will not be able to unlock again. This is not new, we have had this file for a while.
Click to expand...
Click to collapse
Yeah -- I got screwed by the OTA update, but I *don't* have the update file. Where does it actually exist other than this OP's offer to upload it? I'll just get it from there. I've searched to no avail for 2.3.5 sbf, photon OTA, and other similar searches -- none come up with the actual download. I must be missing the right search?
Thanks for any info.
Update (again): A valid link can be found here: http://forum.xda-developers.com/showthread.php?p=29216728#post29216728 so have at 'er folks.

[Q] ICS PG05IMG.zip isn't reading at hboot.... for ICS

EDIT: I FOUND THE ISSUE: I needed to reformat my SD Card
I have the new zips for the new radios - for some reason hboot isn't recognizing the zip file, and no its not named ".zip.zip" - I'm using a Linux Machine, I checked the md5s and all, they all matched up, I haven't had an issue like this ever before, what's wrong?
And yes it's on the root of the SDcard
Klonopin said:
EDIT: I FOUND THE ISSUE: THE HBOOT IS LOOKING FOR A PG05DIAG.zip*!!
I have the new zips for the new radios - for some reason hboot isn't recognizing the zip file, and no its not named ".zip.zip" - I'm using a Linux Machine, I checked the md5s and all, they all matched up, I haven't had an issue like this ever before, what's wrong?
And yes it's on the root of the SDcard
Click to expand...
Click to collapse
There's two sets of zips, one of the zips can't be read by certain versions of HBOOT because of the compression method. I don't have links to the two sets but I'm sure you can find them.
...nvm
ryanstfl said:
There's two sets of zips, one of the zips can't be read by certain versions of HBOOT because of the compression method. I don't have links to the two sets but I'm sure you can find them.
...nvm
Click to expand...
Click to collapse
Nahh, he got it installed eventually.
He just needed to reformat his SD card.
Maybe he should update the OP to reflect that.
santod040 said:
Nahh, he got it installed eventually.
He just needed to reformat his SD card.
Maybe he should update the OP to reflect that.
Click to expand...
Click to collapse
Fixed
A longshot
I know it's an older thread but I'm hoping someone can help. I reformatted my SD card, all the tips and tricks I've seen in this section and the development section and still no dice. Should I be doing this via recovery or HBOOT? If via HBOOT, can I do so after installing a ROM or does it still have to be done first.
Thanks
Loki
====
Edit: Ah it's been so long since I've done this I forgot to rename it and update from the main hboot window. Duh.
Klonopin said:
EDIT: I FOUND THE ISSUE: I needed to reformat my SD Card
I have the new zips for the new radios - for some reason hboot isn't recognizing the zip file, and no its not named ".zip.zip" - I'm using a Linux Machine, I checked the md5s and all, they all matched up, I haven't had an issue like this ever before, what's wrong?
And yes it's on the root of the SDcard
Click to expand...
Click to collapse
hey Klonopin i was wondering... is it s-off or s-on?
Also what type of hboot version do you have?
---------- Post added at 06:36 PM ---------- Previous post was at 06:12 PM ----------
LokiAkai said:
I know it's an older thread but I'm hoping someone can help. I reformatted my SD card, all the tips and tricks I've seen in this section and the development section and still no dice. Should I be doing this via recovery or HBOOT? If via HBOOT, can I do so after installing a ROM or does it still have to be done first.
Thanks
Loki
====
Edit: Ah it's been so long since I've done this I forgot to rename it and update from the main hboot window. Duh.
Click to expand...
Click to collapse
HEY LOKI
I AM "NOT" RESPONSIBLE IF YOU MESS UP YOUR DEVICE FROM FAILURE TO READ INSTRUCTIONS.
there is a fix
what you want to do is follow these instructions to downgrade your htc thunderbolt to a firmware that can be S-OFF, i should say.
the reason behind why this wont work is because you are probably s-on and HTC is rejecting your file. Kinda like Read/Write.
Basically you need to be S-OFF.
here is the link to the post:
www[dot]androidforums[dot]com/thunderbolt-all-things-root/689221-how-downgrade-root-ics[dot]html
this link contains all of the information you need to achieve your goal.

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