yashsingh1/xdaforums huggingface dataset:
[One (M8) Q&A, Help & Troubleshooting] andywkf:
Can't clean cache after getting back to stock with this twrp backup and stock recovery.It shows clean cache completed but no "android updating "screen.Also when I enter recovery,I don't have red triangle screen that I have before.Why??
[One (M8) Q&A, Help & Troubleshooting] Einwod:
The red triangle is on the stock recovery. You can clear cache and dalvik from within TWRP recovery. From stock recovery you can factory reset.
[One (M8) Q&A, Help & Troubleshooting] C57:
Thanks in advance.

So, basically i need to install TWRP first(going over the stock recovery) after that extract the thing from XX_XX_XXXX_XX(not ckpv5) to the backup folder of TWRP. Wipe everything and install the backup you provided(probably twrp, right?) after that re-install stock and i should be fine. Got it right or should i go through everything again?

P.S. i downloaded everything having 4.19.61.2 hope that was my case.
[One (M8) Q&A, Help & Troubleshooting] andywkf:
I am in stock recovery now but I still do not have the red triangle.

That's mean I can't clean cache in stock recovery??
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
Read again maybe.

Not install backup but restore backup

After install twrp, use its backup function to make a backup of what you have now.

Then you'll know where the downloaded backup should go.
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
Why do you need to do that ? Do you know how to get into stock recovery ? I mean the button combination.

Read post #1 all the 14 steps then you'll understand better. It doesn't need clean cache in stock recovery

Make sure you restore a correct version for your getvar info and make sure you have correct stock recovery installed too. Restoring a very high version on o very low hboot won't work either.
[One (M8) Q&A, Help & Troubleshooting] andywkf:
i mean i flashed the stock recovery.When i get in the recovery via bootloader,there is no red triangle shows up for my phone which shows in other m8.

Also i want to wipe cache in the stock recovery. But i fail to do so.I have restored the correct version of twrp stock rom backup and correct recovery.Any idea why i can't wipe cache??It response that i successfully wiped,but actually it didn't wipe anything.Help!!!
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
So it's nothing related on what this thread all about. Nothing to do with that 14 steps as guided. And still you don't answer why you need to do that.

It's all depends on which version that you installed. Without you telling me which version that you installed, it is hard for me to check.

For example on my latest stock ROM 4.19.707.4 there is no need for button combination to enter recovery and there is no red triangle too. On hboot when select recovery, it goes directly to recovery menu without a need to press button combination.

Not as what you mentioned, it is not all M8 have that. Mostly have that red triangle due to some error where you need button combination to read the error log in recovery menu
[One (M8) Q&A, Help & Troubleshooting] andywkf:
Then can you wipe cache using stock recovery??

Also,when i entered recovery ,it says

E:missing bitmap oem_unlock_bg

(Code -1)

E:missing bitmap oem_unlock_bg_yes

(Code -1)

E:missing bitmap oem_unlock_bg_no

(Code -1)

Any Idea???
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
That's normal on any stock recovery.

Yes, can wipe cache in stock recovery.

And that "android updating ..." only happens when you wipe dalvik-cache, not cache. They are two different things. Wipe cache - no "android updating..."

If you do restore the TWRP as mentioned in that 14 steps .. you'll get "android updating..." after reboot. Because in step 8, you need to wipe dalvik-cache

If you don't get this "android updating..." most probably the restore was not correctly done as per guide.
[One (M8) Q&A, Help & Troubleshooting] andywkf:
OMG.Learnt alot from you.Problem solved:o

---------- Post added at 09:33 PM ---------- Previous post was at 09:24 PM ----------

How come i don't have no os number in bootloader now.But i can still boot up the phone normally

---------- Post added at 09:34 PM ---------- Previous post was at 09:33 PM ----------

sorry type wrong . i mean i have no os number in bootloader.
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
That's because you used the old outdated bugged TWRP 2.7.0.2

That will be fixed when you install next OTA.

If you want to fix it now .. you can restore a version lower than what you have now then do OTA to the current one.

Or the more hassle one - relock bootloader and fastboot flash a signed HTC firmware (not customized one) of your current version in RUU mode then re-unlock it again to restore your backup.
[One (M8) Q&A, Help & Troubleshooting] andywkf:
will it brick my wifi after ota if i restore to a version lower than i have now???
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
Usually .. no but I don't advise it if your current version is the latest one with stagefright fix.

What's your software version now ? You don't tell since your first post in this thread
[One (M8) Q&A, Help & Troubleshooting] gr0za:
Hello,

I would like to get back on stock (to 6.0, I previously had 4.4.4 and it is not supported anymore) after screwing up and deleting my OS. Thing is, I don't know in what order should I do things, nor which files are for me.

My getvar all:

(bootloader) version: 0.5

(bootloader) version-bootloader: 3.19.0.0000

(bootloader) version-baseband: 1.08.20.0916

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 3.30.651.2

(bootloader) version-misc: PVT SHIP S-OFF

(bootloader) imei2: Not Support

(bootloader) product: m8_whl

(bootloader) platform: hTCBmsm8974

(bootloader) modelid: 0P6B70000

(bootloader) cidnum: 11111111

(bootloader) battery-status: good

(bootloader) battery-voltage: 0mV

(bootloader) partition-layout: Generic

(bootloader) security: off

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: 8a0f02ff

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

I will think of getting a custom ROM once I learn more, because as it is right now I shouldn't have done that. But for now I want to get my phone to work again.

Can someone help? I will refrain from making a fool of myself after that :D

EDIT: to clarify, I kindly ask for any help regarding whether I should flash a newer firmware, TWRP, or what, in which order, and how to recognise which files are for me. Sounds like a lot, but if someone pointed me to the files to get, and then in which order to flash them, I would be very very grateful.
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
This repository/guide doesn't support your variant (Sprint US carrier version). But you can find the necessary files for your version here: https://xdaforums.com/showthread.php?t=2729173

I would suggest (using the instruction at the bottom of the first post of the above linked thread):

1) Fastboot flash signed full firmware 6.20.651.3

2) Flash RUU 6.20.651.3

This sounds redundant. But 1 and 2 above, and actually not the same thing. What is properly called "firmware" for this device is a small file that contains hboot, radio, and a few other things required for the ROM/OS to work, but actually does NOT include the ROM itself.

I was able to identify your M8 version by the product name (m8_whl) for your getvar output. This signifies the device as the Sprint variant. Other identifiers (MID and CID) can be modified with s-off (which your device is s-off), but the product name I've never seen modified.
[One (M8) Q&A, Help & Troubleshooting] gr0za:
Sorry for late reply. Yes, it is a Sprint, I found that out somewhere else when digging for information. I am on Android 6 already, luckily. Thanks for your help though!
[One (M8) Q&A, Help & Troubleshooting] Da_Tall_Man:
Stock backup of 6.12.166.4

Looking for a backup that I should have made myself.....

The stock backup of 6.12.166.4 - is no longer available at the mentioned mega.nz file location.

Anyone ?
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
It's in post #3, which actually links to this post
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
Try this link https://mega.nz/#!z4RC3QzK!ZfX3xTFSRnl4QPMqRhT5ssbNRaZ-mhGvwoDUcjBr77c

The file is not mine but I have it in my Mega ac.

I don't have PC, the old one kaput .. link copied with mobile device I hope link is working for you. Let us know so we can update the working link.
[One (M8) Q&A, Help & Troubleshooting] Da_Tall_Man:
Thanks guys.

[MENTION=4987085]xunholyx[/MENTION]: as far as I can see your link refers to 6.12.161 firmwares, which I suspect will not work for me. My CID is VODAP120. The VODAP110 and VODAP120 CIDs have this 6.12.166.4 version.

[MENTION=830797]ckpv5[/MENTION]: I tried your link, but all that happens is that MEGA lets me wait and wait and wait....
[One (M8) Q&A, Help & Troubleshooting] Kruk07:
Re link, try again. It worked for me just tested.
[One (M8) Q&A, Help & Troubleshooting] Da_Tall_Man:
Tried again: file downloaded.

Will report back later this week. This is a procedure I have never done before, will need my time.

Thank you so far.
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
The link I gave you has all of the TWRP backups, firmwares, stock recoveries, and OTAs for the Vodafone/ x.xx.161.x versions.
[One (M8) Q&A, Help & Troubleshooting] Da_Tall_Man:
File works.

Funny thing is that after extraction I had a directory "6.12.166.4" with a subdirectory "6.13.166.4". Luckiliy, this did not bother my M8.

Now, back to stock, I could finally use the SIM unlock code I bought earlier. This was the reason to go back to stock.

Simlock removed, all is well. Thank you for your help.
[One (M8) Q&A, Help & Troubleshooting] inboxmario:
Help with finding the correct RUU?

Can someone please help me with finding the correct RUU?

This is my get var result:

(bootloader) version: 0.5

(bootloader) version-bootloader: 3.19.0.0000

(bootloader) version-baseband: 1.0.U20410.1@60201

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 2.21.401.1

(bootloader) version-misc: PVT SHIP S-ON

(bootloader) serialno: ++++++++++++++

(bootloader) imei: ++++++++++++++++

(bootloader) imei2: Not Support

(bootloader) meid: 00000000000000

(bootloader) product: m8ql_ul

(bootloader) platform: hTCBmsm8939

(bootloader) modelid: 0PKV10000

(bootloader) cidnum: HTC__032

(bootloader) battery-status: good

(bootloader) battery-voltage: 0mV

(bootloader) partition-layout: Generic

(bootloader) security: on

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: 0b9a12e3

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

(bootloader) mfg-name: 0001
[One (M8) Q&A, Help & Troubleshooting] Einwod:
You have the M8S version. This thread is for the international M8.
[One (M8) Q&A, Help & Troubleshooting] mrrocketdog:
[MENTION=830797]ckpv5[/MENTION] , cannot say thank you big enough for keeping your links up as so many DL links in development are broken. am getting another m8 (att) in a few days (as its one of best phones , for me anyways , that i've ever owned). and your thread/links are invaluable. thank you again , dave :)
[One (M8) Q&A, Help & Troubleshooting] saheta:
Correct RUU zip.

This is the correct RUU zip for Your version.

Name of file: 0PKVIMG_M8_QL_UL_M60_SENSE70_MR_HTC_Europe_2.21.401.1_Radio_1.0.U20410.1@60201_20.05_018_F_release_496316_signed_2_4.zip

linked hxxps://drive.google.com/file/d/1_Rmvp0mLGcv4R6xg_CQMzYlfpPfxVNlG/view
[One (M8) Q&A, Help & Troubleshooting] forster:
Thank you very, very much ckpv5 and PeterT87.
[One (M8) Q&A, Help & Troubleshooting] Marcool_04:
Thank you very very much for the excellent work all who have contributed to this thread have done! Remarkable that all those files have stayed up on the storage. Anyhow thanks again for all the hard and careful work.

Regards,

Mark.
[One (M8) Q&A, Help & Troubleshooting] Fazalabbas80808:
I can not thank You Enough...You are a life savior, I love u man.. I just Got my bricked htc One M8 MID 0P6B67000 CID htc_j15 to life again..All Thanks to you and this thread.
[One (M8) Q&A, Help & Troubleshooting] djibe89:
Hi everyone ( [MENTION=830797]ckpv5[/MENTION] ).

Your work is incredible !!!!

I am trying to download stock recovery 6.13.1020.4 ( download link https://mega.nz/#!Cowy2JCb!MOqe4fJI-MMaqU0D_M6vY1P9U5VJJRYBGeX5EQA_r4Y"), but mega asks for a Decryption key before download. Is it on purpose ?

Thks for your help.
[One (M8) Q&A, Help & Troubleshooting] Einwod:
Deleted. Wrong answer.
[One (M8) Q&A, Help & Troubleshooting] djibe89:
[MENTION=830797]ckpv5[/MENTION]

You are awesome.

With your TWRP backups I have recovered a bricked french Bouygues M8_UL !!!!

Thx a lot.
[One (M8) Q&A, Help & Troubleshooting] Hyperwero:
looking for an nanodroid 2.xx.xxx.x version for m8_dugl

Hello i installed 4.30.401.16 and 6.16.401.101 on m8_dugl and it bootsup but i have no wifi because the version of the bootloader 3.18.0.0000, do you have a 2.xx.xxx.x version for this model m8 dual sim, please help

bootloader) version: 0.5

(bootloader) version-bootloader: 3.18.0.0000

(bootloader) version-baseband: 1.22.30306251.27G

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 3.33.401.6

(bootloader) version-misc: PVT SHIP S-OFF

(bootloader) serialno: HC48FMY00078

(bootloader) imei:

(bootloader) imei2:

(bootloader) meid: A1000037D21505

(bootloader) product: m8_dugl

(bootloader) platform: hTCBmsm8974

(bootloader) modelid: 0P6B41000

(bootloader) cidnum: 11111111

(bootloader) battery-status: good

(bootloader) battery-voltage: 0mV

(bootloader) partition-layout: Generic

(bootloader) security: off

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: 6b903f73

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0
[One (M8) Q&A, Help & Troubleshooting] JG2021:
Hi and good morning!

I did everything according to the instructions but when restarting I get stuck on the white boot screen.

Any ideas how to fix that and make the phone boot the rom?

(btw it's my third attempt to get back to stock rom :( )

I'm able to enter the recovery mode, but I can't connect the phone via adb. It doesn't show up when I enter adb devices.

It shows up as Android device in Windows when I enter fastboot through the bootloader but still I can't connect via adb. Any solutions?

EDIT: in case anybody has same problem - I was at least able to install twrp via fastboot and get lineageOS back on the phone. But it seems like there's no way back to any stock android for me :(
[One (M8) Q&A, Help & Troubleshooting] muQashang1:
wow after almost 2 months of spinning around myself and going crazy finally i opened my eyes and got what u said and my phone is back to live again!!! THANKS A WORLD MAN!
[One (M8) Q&A, Help & Troubleshooting] MichaelLGFAN1:
@Petert87 Hi friend,do you have copy somehere of HTC ONE M8 firmware T-MOB003 ? its very important for me !

https://www.androidfilehost.com/?fid=745425885120707263 your link is deactivated :)
[One (M8) Q&A, Help & Troubleshooting] Petert87:
Sorry but for some reason I don't have them anymore. Can't remember deleted them.
[One (M8) Q&A, Help & Troubleshooting] MichaelLGFAN1:
Ahh,its bad,but do you know where i can Find this firmware ? I was searched im entire Google,androidfilehost and Lots of sites
[One (M8) Q&A, Help & Troubleshooting] Petert87:
Don't know. Never had a device with that cid.
[One (M8) Q&A, Help & Troubleshooting] mrrocketdog:
ooops. wrong thread
[One (M8) Q&A, Help & Troubleshooting] dungeonseeker:
Thank you so much, I was given a dead M8 by a friend to see if I could revive it. After toying around with Lineage and AICP for around a day and having "No Sim Inserted" no matter what I tried I stumbled across this thread.

Grabbed the latest firmware for my device), flashed with fastboot in RUU mode, next I flashed the latest backup from TWRP, then I flashed the stock recovery (twice). Finally I did oem lock and after a reboot the phone is now working.

A quick warning to anyone flashing these files, after everything is done and you reboot the phone will appear to hang, mine stayed on the HTC screen for a good 3 or 4 minutes (it was so long I thought something had failed). Just be patient and eventually it will boot.
[One (M8) Q&A, Help & Troubleshooting] Froyo13:
Thank you very much for the backups and clear instructions, bought used M8 for cheap few days ago, my grail phone at that time! And now i have it with 4.4.4 :)
[One (M8) Q&A, Help & Troubleshooting] tato_tatiya:
Which RUU would be suitable for my phone?

I've been using the below one but I can't seem to boot.

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 6.12.401.4

(bootloader) version-misc: PVT SHIP S-OFF

(bootloader) serialno: xxxxxxxxxxxxxx

(bootloader) imei: xxxxxxxxxxxxxxxx

(bootloader) imei2: Not Support

(bootloader) meid: 00000000000000

(bootloader) product: m8_ul

(bootloader) platform: hTCBmsm8974

(bootloader) modelid: 0P6B13000

(bootloader) cidnum: 11111111

(bootloader) battery-status: good

(bootloader) battery-voltage: 0mV

(bootloader) partition-layout: Generic

(bootloader) security: off

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: 76df2b54

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

(bootloader) imei2: Not Support

(bootloader) meid: 00000000000000

(bootloader) product: m8_ul

(bootloader) platform: hTCBmsm8974

(bootloader) modelid: 0P6B13000

(bootloader) cidnum: 11111111

(bootloader) battery-status: good

(bootloader) battery-voltage: 0mV

(bootloader) partition-layout: Generic

(bootloader) security: off

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: 76df2b54

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

RUU: 0P6BIMG_M8_UL_M60_SENSE70_MR_HTC_Europe_6.12.401.4_Radio_1.29.214500021.12G_20.72.4196t.01_release_464360_signed.zip​
[One (M8) Q&A, Help & Troubleshooting] andywkf:
my version is 4.18.708.12

seems not the stagefright fix
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
Yep .. no stagefright fix for HKG variant yet.

Should be ok to restore 3.32.708.4 and its stock recovery then do OTA to 4.18.708.12. Use TWRP 2.8.3.0 to restore. After OTA, use TWRP 2.8.7.0

You will not have wifi problem.

Or leave it as it is now until the next OTA. Your phone still working fine without OS no. on bootloader.
[One (M8) Q&A, Help & Troubleshooting] andywkf:
thanks:cowboy:
[One (M8) Q&A, Help & Troubleshooting] _purple_:
Thank you posts are not allowed on XDA. Hit that thanks button instead.
[One (M8) Q&A, Help & Troubleshooting] andywkf:
i wanna ask that if the hboot version for two ota is th same ,is that mean the firmware is the same??

---------- Post added at 12:57 AM ---------- Previous post was at 12:54 AM ----------

more details. i found that 3.32.708.4 and 4.18.708.12 have the same hboot version of 3.19 .Then is that the firmware version are the same?or only the hboot is the same but the radio etc are different?If i Stay with 3.32.708.4 backup ,Will anything went wrong?
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
They are not the same. The last KitKat & Lollipop have same hboot no. but they are different firmware.

For your case, even if you restore 3.32.708.4 your firmware still the 4.18.708.10 so all radio, sensor & etc still intact. Firmware does not get changed with backup restore.

After 3.32.708.4 you'll get OTA to 4.18.708.10 so OTA will install the same firmware 4.18.708.10 to your device.

And there is no way you can install 3.32.708.4 when your device is S-On
[One (M8) Q&A, Help & Troubleshooting] andywkf:
systemui force close after ota to 4.18.708.12.Trying to solve it now:(If can't solve it ,will back to 4.18.708.12 with your twrp recovery backup
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
I don't get it.

Did you restore 3.32.708.4 backup with correct TWRP version from my post #3 ?

Or you have your own backup or your firmware is actually 3.32.708.4 and not 4.18.708.12 ?
[One (M8) Q&A, Help & Troubleshooting] andywkf:
all right. I used your 3.32.708.4 twrp backup to restore my phone to it , then take an ota to 4.18.708.12 .Now everything solved .No error at all.

---------- Post added at 02:02 AM ---------- Previous post was at 02:00 AM ----------

i am now back to stock and probably won't flash any custom rom in the near future.Unless the m8 don't have anymore update from htc
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
Whenever you want to install TWRP for whatever reason, make sure install latest TWRP (for now 2.8.6.0 or 2.8.7.0 is recommended)

Good luck and good night
[One (M8) Q&A, Help & Troubleshooting] :
Hi, I need a TWRP stock backup because I can't update to "OTA_M8_UL_L50_SENSE60_MR_HTC_LA_SPA_4.20.599.4-4.20.599.3_release_446740", I tried to use the backups posted here but when I update the phone stuck on startup.

(bootloader) version: 0.5

(bootloader) version-bootloader: 3.19.0.0000

(bootloader) version-baseband: 1.25.21331147A1.06G

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 4.20.599.4

(bootloader) version-misc: PVT SHIP S-ON

(bootloader) meid: 00000000000000

(bootloader) product: m8_ul

(bootloader) platform: hTCBmsm8974

(bootloader) modelid: 0P6B16000

(bootloader) cidnum: HTC__332

(bootloader) battery-status: good

(bootloader) battery-voltage: 0mV

(bootloader) partition-layout: Generic

(bootloader) security: on

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: 72970cd5

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

Thanks ckpv5 for your post!
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
You shouldn't use the old version backups, won't work. You should use 4.20.599.3 then OTA to 4.20.599.3

But your firmware already updated to 4.20.599.4 so you only need to restore 4.20.599.4 backup, no need to redo OTA for now.

I'll upload and put up link for 4.20.599.4 backup later tonight.

4.20.599.4 nandroid backup link added to post #3
[One (M8) Q&A, Help & Troubleshooting] :
Thanks, it worked!

This backup already has the stage fright update? I will be able to make OTA updates?
[One (M8) Q&A, Help & Troubleshooting] ckpv5:
Yes .. it has stagefright update.

Yes .. provided you don't change anything in the system, yes you can OTA when there is one later.

But you can always restore the system part from this backup next time you want to OTA in case you changed something in system like rooting.
[One (M8) Q&A, Help & Troubleshooting] redlingg:
Hi

Would you have a TWRP stock backup based on the data below?

thanks

INFOversion: 0.5

INFOversion-bootloader: 3.19.0.0000

INFOversion-baseband: 1.25.214500021.06G

INFOversion-cpld: None

INFOversion-microp: None

INFOversion-main: 4.19.112.3

INFOversion-misc: PVT SHIP S-ON

INFOserialno:

INFOimei:

INFOimei2: Not Support

INFOmeid: 00000000000000

INFOproduct: m8_ul

INFOplatform: hTCBmsm8974

INFOmodelid:

INFOcidnum: T-MOB102

INFObattery-status: good

INFObattery-voltage: 0mV

INFOpartition-layout: Generic

INFOsecurity: on

INFObuild-mode: SHIP

INFOboot-mode: FASTBOOT

INFOcommitno-bootloader: fd11f35a

INFOhbootpreupdate: 11

INFOgencheckpt: 0
[One (M8) Q&A, Help & Troubleshooting] DryaT:
Let's see if someone can help me.

My OS is 4.19.75.2 ( _309 ) and I have a backup of my original 4.4.4 rom (which was 3.xx.xx.x) but without recovery (and I can't find any _309 recoveries in the internet) so i have tried to ota update restoring my 4.4.4 backup and flashing recoveries (I have tried 4.19.11x.xx and 3.xx.xx.x) but the ota failed so...is there any way that i can take an ota? right now is not a problem but 6.0 is coming up and i would like to update the firmware with an ota and not having to s-off to flash an entire ruu...

Thanks a lot.
[One (M8) Q&A, Help & Troubleshooting] Einwod:
The OS version is vague. Post the results of fastboot getvar all minus your serial and IMEI numbers and perhaps someone can help.