Official RUU 6.21.605.3 EXE/ZIP

[dottat]

**IF you are looking for the RUU to downgrade while s-on to use sunshine you want the blue links below!***


Below is the official RUU. This zip can be flashed via fastboot/RUU mode or via SD card. It is NOT rooted. This will be especially useful for users who want to relock/s-on in order to sell or return their phone. Make sure you download to this software/firmware combo using my other pre-rooted version first!!!!! Once you have your bootloader locked and tamper flag cleared you can turn s on. Then you can flash this RUU to remove any/all traces of root. This ruu will NOT wipe internal storage or data. This RUU is NOT ROOTED!

If you use fastboot/adb method i recommend using this HTC version of fastboot/adb. It's taylored specifically for our phones by HTC. https://www.androidfilehost.com/?fid=95784891001612150

Remember - You cannot downgrade firmware unless s-off!!!
Though you should be able to switch between the two 5.0.1 RUU while s-on!

Rename zip to 0P6BIMG.zip ***Make sure you don't add a 2nd .zip to the file name as windows 8 has file extensions for known file types hidden by default!** Depending on your current firmware level you may need to flash the official hboot download below using the same method as the RUU.

Option 1
For Marshmallow
Download DOTTAT_VZWM8_S_ON_6_0.exe and doubleclick. Allow file to extract and install dependencies and then follow on screen prompts.
For Lollipop
Download DOTTAT_VZWM8_S_ON_5.0.1_RUU.exe and doubleclick. Allow file to extract and install dependencies and then follow on screen prompts.
All others
Download DOTTAT_M8_444_S_ON_FUU.zip. Extract and double click on ARUwizard.exe. Follow prompts to update your phone.

Option 2

Copy 0P6BIMG.zip to root of a physical SD formatted to fat32. No exfat! No internal storage! Must be external SD formated to fat32!

Reboot phone to bootloader and follow prompts once RUU is detected by phone.



Option 3

Fastboot RUU mode . This method assumes you have a working ADB/Fastboot directory on your PC. Download RUUish file and place in your working fastboot/adb directory. Boot your phone to fastboot mode and connect to PC. Issue the following commands.

fastboot oem rebootRUU
###while in this mode your phone will display an HTC logo on the screen

fastboot flash zip 0P6BIMG.zip
##while in this mode you will see an HTC logo on the screen and a green status bar across the bottom of the screen. When command output ##completes it may say reboot required to flush etc... if that's the case issue a "fastboot reboot-bootloader" command and restart option 1 again.

example

## assuming flash completes and no further flushing/reboots are requested from the cmd output you can now reboot IF you simply wish to reboot the system you can issue "fastboot reboot" which will reboot system.
## expect a good 5 minute plus first boot!


Downloads Do NOT mirror these elsewhere.
-
RUU link

6.0 Marshmallow zip
https://www.androidfilehost.com/?fid=24438995911975645

6.0 Marshmallow EXE
https://www.androidfilehost.com/?fid=24438995911975667

5.0.1 RUU exe with stage fright patch
https://www.androidfilehost.com/?fid=24052804347813949

5.0.1 RUU zip with stage fright patch
https://www.androidfilehost.com/?fid=24052804347813946



5.0.1 RUU EXE (single exe don't unzip)
https://www.androidfilehost.com/?fid=95916177934540519
md5 e0ca625c221724d1e50d27330f97ba32

5.0.1 RUU zip
https://www.androidfilehost.com/?fid=95916177934540511
md5 6a32ce5d3f86b886d38414e27cf5246e

4.4.4 RUU EXE
https://www.androidfilehost.com/?fid=95784891001604008
md5 5924502c708061b9dd4f6c132cd6729c

4.4.4 RUU zip
https://www.androidfilehost.com/?fid=95784891001604006
md5 6077fefbc12b51ae55f1a066c863a414

4.4.3 RUU zip

https://www.androidfilehost.com/?fid=95747613655043110

4.4.2 RUU zip
https://www.androidfilehost.com/?fid=23622183712474753

MD5 c72983b61d57bf74999b16d92780a600

Official hboot link

6.0 Hboot (marshmallow)
https://www.androidfilehost.com/?fid=24438995911975644

5.0.1 hboot
https://www.androidfilehost.com/?fid=95916177934540510

4.4.4 hboot
https://www.androidfilehost.com/?fid=95784891001604007

4.4.3 hboot
https://www.androidfilehost.com/?fid=95747613655049391

4.4.2 hboot
https://www.androidfilehost.com/?fid=23622183712474759

- MD5 8331b154bbf10b8d0171d2bc1170f81a

 

[jsaxon2]

This is awesome to have. Thank you my friend.

 

[Tigerstown]

Just to sum this up..technically I could run the lock an s-on fastboot cmds an then flash this s-on to reset my phone to just like how it comes officially ?

 

[jsaxon2]

Just to sum this up..technically I could run the lock an s-on fastboot cmds an then flash this s-on to reset my phone to just like how it comes officially ?

I believe you have to downgrade first using the 4.4.2 pre-rooted stock ruu he had put put together. Then lock remove tampered flag and then s-on. Once there you can flash this official ruu.

This will land you on stock out of the box 4.4.2

 

[king kratos]

Is this an actual Official RUU leak from HTC or is this something you compiled yourself?

Kratos

 

[dottat]

Is this an actual Official RUU leak from HTC or is this something you compiled yourself?

Kratos

Official. Not leak.

 

[timmy_k]

Thanks! Good to have as keepsake!

 

[DizDroid]

I believe you have to downgrade first using the 4.4.2 pre-rooted stock ruu he had put put together. Then lock remove tampered flag and then s-on. Once there you can flash this official ruu.

This will land you on stock out of the box 4.4.2

Do you or anyone in the know sharing those steps more specifically? I'm about to undergo warranty screen replacement and need to get things back in shape to avoid dealing with HTC for rooting phone.

If I'm running stock 4.4.2 Clean Rom 8/17 I shouldn't need to downgrade, correct? From there I can run CMD commands and run this RUU, right?

TIA. I haven't kept up with this phone as I have in previous models, just trying to avoid a potential brick situation.

 

[Deleted member 5019868]

Quick question, I'm returning a 4.4.3 rooted CLNR device back to Big Red, should I RUU the hboot or full package file first? Many thanks!

 

[dottat]

Quick question, I'm returning a 4.4.3 rooted CLNR device back to Big Red, should I RUU the hboot or full package file first? Many thanks!

Hboot as you will want to downgrade that.

 

[aer0zer0]

so this RUU doesnt work like the ones on the M7 that were official...meaning any firmware, official signed RUU, would wipe, downgrade, and reinstall all in one? (Im not planning to relock/SON)

So to follow how this works

1. Flash @dottat 4.4.2 rooted RUU to downgrade back to 4.4.2
2. Flash the signed HBOOT from link above
3. Flash the official RUU from the link above

 

[dottat]

so this RUU doesnt work like the ones on the M7 that were official...meaning any firmware, official signed RUU, would wipe, downgrade, and reinstall all in one? (Im not planning to relock/SON)

So to follow how this works

1. Flash @dottat 4.4.2 rooted RUU to downgrade back to 4.4.2
2. Flash the signed HBOOT from link above
3. Flash the official RUU from the link above

If you just wanted to downgrade from a stock Rom you could just simply do steps 2 and 3. They put a switch in the file to not wipe data so your data and apps would remain. An s off user who doesn't like the ota could downgrade that in one shot.

We tested it

 

[aer0zer0]

If you just wanted to downgrade from a stock Rom you could just simply do steps 2 and 3. They put a switch in the file to not wipe data so your data and apps would remain. An s off user who doesn't like the ota could downgrade that in one shot.

We tested it

Fantastic, thank you for the clarification

 

[DizDroid]

Does anyone know if I am on 4.4.2, if we need to downgrade anything, or if we can run the commands to lock bootloader, and enable s-on, then run the ruu file listed above?


Sorry for the almost double post. Trying to get this in order before my 10 days are up.

 

[dottat]

Does anyone know if I am on 4.4.2, if we need to downgrade anything, or if we can run the commands to lock bootloader, and enable s-on, then run the ruu file listed above?


Sorry for the almost double post. Trying to get this in order before my 10 days are up.

Downgrade first!!!!

I put the warning in the op you cannot downgrade once s on

If already 4.4.2 you are good as long as your firmware matches.

 

[DizDroid]

Downgrade first!!!!

I put the warning in the op you cannot downgrade once s on

If already 4.4.2 you are good as long as your firmware matches.

Forgive my noobie question, can you educate me on what I may possibly need to downgrade too or what I need to be checking for in sys info (or link me to correct downgrade file)? Searched your previous posts but couldn't seem to find the file your are talking about. I basically rooted the phone when I got it 5 months ago and left it as is. Never changed anything from out of box or updated to 4.4.3.

I don't think I need to downgrade anything, but always safe to compare after being away from xda for awhile.

 

[dottat]

Forgive my noobie question, can you educate me on what I may possibly need to downgrade too or what I need to be checking for in sys info (or link me to correct downgrade file)? Searched your previous posts but couldn't seem to find the file your are talking about. I basically rooted the phone when I got it 5 months ago and left it as is. Never changed anything from out of box or updated to 4.4.3.

I don't think I need to downgrade anything, but always safe to compare after being away from xda for awhile.

As long as you are still stock and didn't flash any custom firmware beyond the 4.4.2 build you are fine. I put the extra caution out there because if you s on you cannot downgrade. I have a list of m7 users who went s on and somehow had no system installed. This ruu is the only public one which will flash if s on and only if you are at or below this software/firmware level.

 

[Irieone]

I am about to return my m8 to Big Red also. I am on 4.4.3 firmware running Clean Rom and s-off. Do I need to downgrade first Or is that not needed since I am s-off? I was going to flash the RUU via fastboot, lock the bootloader, and then s-on the phone. Is that right? Leaving me stock with no flags?

Thanks in advance.

 

[dottat]

I am about to return my m8 to Big Red also. I am on 4.4.3 firmware running Clean Rom and s-off. Do I need to downgrade first Or is that not needed since I am s-off? I was going to flash the RUU via fastboot, lock the bootloader, and then s-on the phone. Is that right? Leaving me stock with no flags?

Thanks in advance.

I would highly recommend you lock your boot loader and reboot. Verify its good. Then boot and go into su and do a full unroot. Then boot to boot loader and turn s on.

 

[Irieone]

I would highly recommend you lock your boot loader and reboot. Verify its good. Then boot and go into su and do a full unroot. Then boot to boot loader and turn s on.

I forgot that I needed su to lock the bootloader. Will the RUU flash via fastboot with a locked bootloader?