yashsingh1/xdaforums huggingface dataset:
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
Yeah, if you haven't tinkered with these phones (and HTC devices in particular) the terminology will be new to you. RUU is ROM Update Utility. It's an official tool (Windows executable program) that will re-image all the partitions on the phone, and usually fix the issues such as the ones you are experiencing. It's an easy fix , especially for folks with unmodified (bootloader unlock, root, etc.) devices such as yours. However, the RUUs are carrier version specific, and not every version has RUU. Unfortunately, as mentioned, I don't think your M8 carrier version (Orange) has an RUU.

Which means there is no "official" way to recover from your current condition. Luckily, the community here provides a recovery method. But you'll have to jump through some hoops, and it will take some time and patience.

The basic idea, is that you will need to unlock the bootloader, which allows you to install a custom recovery program (called TWRP). With TWRP, you can install a stock backup OS uploaded by another member, which will hopefully get your phone up and running. This process is going to be somewhat complicated, and a bit intimidating. But as the phone will not boot, and you've tried all the other alternatives (factory reset, etc.) I don't see any alternative.

a) Use the Vomer's Guide to get setup, unlock the bootloader, and install TWRP. Follow steps 0 and 1, but up to (and not including) the section titled ROOT (near end of Step 1): https://xdaforums.com/htc-one-m8/general/vomerguides-m8-bootldr-unlock-s-off-t2800727

The other important note: the version TWRP you should flash is 2.8.7, which you can get from the link in the following step.

b) Follow the guide in the following link, through Step 9. Steps 1 and 2 are to install TWRP. So since you did that in the previous step (a) you don't need to again. But here it is again, and the specific version you will need (TWRP 2.8.7).

https://xdaforums.com/htc-one-m8/help/tutorial-how-to-stock-stock-twrp-t3086860

The stock TWRP backup (ROM or OS) you will need is 6.12.61.4, which will be found in Post #3 of the thread.

Basically, you will need to download the stock backup 6.12.61.4, unzip it on your computer, then transfer the extracted files to the proper place on the phone (which is a bit tricky). Then restore the backup in TWRP, and reboot, and hopefully, the phone will be back up and running.

Read all the steps in the linked guides, and try to understand as much as you can before you start. It can be pretty confusing, so feel free to come back here and ask if you have any questions.
[One (M8) Q&A, Help & Troubleshooting] CrispyD:
Thanks so much for your prompt and comprehensive reply. Sounds like a weekend to be set aside for reading, rereading and understanding.
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
You're quite welcome. It is strange that HTC doesn't provide an easy recovery solution for all versions (only some of them). But luckily, the community here has you covered, even if it takes some time and effort.

I know it's a lot to digest, and a good potential to get confused or stuck at some steps. So don't hesitate to come back and ask, if you have any questions, doubts, or issues.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Are there any methods to unbrick my m8.

PC recognizes it as Qualcomm 9008 MOD6.

Waiting with a pounding heart!
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
Did you do anything specifically to cause the current conditions (flash anything, RUU or OTA update, etc.)?

S-on or s-off?

If it is truly bricked (such as damaged bootloader) I've never seen a working "unbrick" method. You're looking at JTAG or new motherboard.

Although the Qualcomm message doesn't necessarily mean it's bricked. You'll see this message if the phone is powered off. So therefore, the questions I asked above about the events that occurred before the current condition.
[One (M8) Q&A, Help & Troubleshooting] beeewell:
There are many known problems with other devices regarding Bluetooth and Android 7. I'm currently using the latest build of XenonHD. Thanks to ljjehl for his work - the rom has long battery life, is very stable, and performs really well. :good: :good:

Bluetooth works, but doesn't pass on the metadata to my car radio, so the artist and track show as unknown. This is a very common problem with many devices and nougat roms. Is anyone running a nougat rom where this feature works?

Thanks in advance.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Oh yes, I tried to flash a custom ROM before and did not unlock my m8. It works fine until I turned it off to fix the "google play service has stopped" problem, it never turned on then. I have tried many combinations of key-pressings but none worked(with and without plugging to a charger). Strange, it did not want to power up but when charging, the orange light blinks in sometimes long sometimes short intervals. Wonder what it could mean? Like 6 seconds long flashes. Or any tricks in there?
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
I don't follow. What exactly do you mean by "unlock" (bootloader unlock, or s-off, or something else); as that term can mean various things. You can't flash a custom ROM without first unlocking the bootloader, so I don't follow what you did there.

You should give a more detailed sequence of events, step by step what you did to try to mod the phone. And give the exact file name for what you flashed.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
I did not s-off it. I flashed a boot.img, a recovery, and android444sense50bydave ROM, with gapp443lite.zip
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
Okay, s-on is good. It's really hard to brick this phone with s-on.

Your sequence is a bit strange. I don't see why you would flash boot.img before recovery or before flashing a ROM for that matter. You also don't typically need to flash gapps when using a Sense ROM, and in fact doing so will often cause problems (and this may have been why you had some problems with the Google apps).

But I don't see any of this being related to the current condition.

Try leaving the phone on wall charger for several hours (overnight) and try holding power, or power+vol down. You will probably need to hold the button(s) for a minute or more in the current condition. Folks have often freaked out that they have a brick (myself included) not realizing that you need to hold the buttons that long to force a boot in some "stuck" or low battery conditions.
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
Yeah, as pointed out above by [MENTION=660462]redpoint73[/MENTION] you aren't flashing the ROM properly. I'm assuming you are new to HTC? HTC devices are a bit different than other OEMs when it comes to flashing stuff.

Also, android444sense50bydave ROM? I've never heard of that and if you can I'd like you to link me to that. I'm interested in it, since it is new to me.

In general: unlock bootloader > flash TWRP > flash a ROM (most if not all Sense based ROMs come pre-rooted with SuperSU baked in)

Or if you want rooted stock bootloader unlock > TWRP > SuperSU

Flashing a boot.img and GApps shouldn't be necessary. If you want to run a custom kernel (boot.img kinda), flash that after you flash the ROM
[One (M8) Q&A, Help & Troubleshooting] MisOly:
First thanks.

Ah, I did a factory reset, wipe cache, and deleted "system" in advance options. Wonder is that why I cant turn it on?

Yes I am new to HTC and I tried to flash costom ROMs after system update glitched.

---------- Post added at 06:48 AM ---------- Previous post was at 06:45 AM ----------

I did try holding those button for about 2 min but it's not working.:crying:
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
You wiped /system, and that's why your phone won't boot. In general, I suggest to NEVER wipe /system in twrp. When you flash a ROM or run an RUU, /system gets wiped and re-written.

What you need to do is download a ROM and put it onto your extSD and flash it to restore your system partition. You could also run an RUU if you want to return to stock' or just start with a clean slate.
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
I'm still confused about the sequence of events. Before you posted:

Then you posted:

Now you are saying you did a factory reset and wiped system.

I'm totally confused on the exact sequence of steps, as you've only given a jumble of things you've done, without telling us in sequence, and the info also seems to contradict itself. You keep adding more and more info, which indicates to me, that you left out that info before (therefore, a complete chronology was never given).

Please take some time to post, in detail, a step by step chronology of everything you have done to the device that led up to the current condition, not skipping anything. Preferably bullet pointed or numbered, with as much detail as possible.

If you respond to this request with only one or 2 sentences, quite frankly, you're doing it wrong and it makes it impossible to properly help you.

But to answer your question, NO, wiping system (factory reset, wipe cache) in TWRP did not directly lead to the current (can't power on) condition. Something else is the cause. Even wiping system (which you shouldn't have done, as xunholyx stated) would have just led to still being able to power on, but stuck on bootscreen or bootloader.

---------- Post added at 09:28 AM ---------- Previous post was at 09:24 AM ----------

This is really critical info that you didn't mention before. What does this mean exactly? You got an OTA update? If so, did it fail before starting to install? Or did it start to install, then fail? Give as much detail as possible.

If the OTA started writing to a critical partition (such as hboot or radio) and was interrupted,

this

is something that will brick the phone. Although, I would doubt it would still let you subsequently unlock the bootloader, flash ROM, etc. before "bricking". But we should explore this facet in detail, to confirm what exactly happened.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
But now I cant boot to recovery or bootloader, what should I do?

---------- Post added at 03:19 PM ---------- Previous post was at 03:15 PM ----------

Thanks for telling me to do so, I will post all I can recall soon.
[One (M8) Q&A, Help & Troubleshooting] Einwod:
We're all still waiting.
[One (M8) Q&A, Help & Troubleshooting] killkiller9:
Hello everyone, I would like to ask a question. My M8 was handed down to me by my friend, he said it has some "water damage" and has the screen replaced already. The thing is my phone would randomly increase the volume to maximum; it acts like someone is holding down the volume up button. It would only stops by pressing the home or the back button. Please see the screen shot below:

The phone keeps doing that until I press the back or the home button. Please be kindly noted that my phone has no volume buttons; in a fit of rage, my friend has knocked both of them off the phone.

Can anyone tell me what kind of error this is? I have searched for a while and found nothing regarding this matter. I would like to try to root the phone and disable the physical buttons (even though they are no longer there) and hope it would go away.

Thank you for your all of your help. I apologize if any of the above is not clear, my english is not very fluently; please ask should there be anything you would need.

P.S.: I've just realized after posting is that my screenshot is too big. Please excuse it also as I do not know how to change its size.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Might be things stucked in your volume slot. Try remove the black plastic sticker/cover underneath the volume up key?:confused:

---------- Post added at 08:02 PM ---------- Previous post was at 08:00 PM ----------

Update finished.Please take a look.
[One (M8) Q&A, Help & Troubleshooting] killkiller9:
Hi, thank you for your post. But the volume up button has never been working; that's the weird part. Back when the phone still has 2 volume button, my friend said he can only use the volume down, the volume up is kinda useless and volume still randomly increase.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Ha, never had that before, my volume key are missing too. Use toothpicks now.:) Have you tried lock volume function on any of those volume apps, from play store? Hope that works!

---------- Post added at 05:31 AM ---------- Previous post was at 05:30 AM ----------
[One (M8) Q&A, Help & Troubleshooting] cg001:
htc m8t:when i change the camera,there's the word:the 3d cameras are blocked.how can i solve this?
[One (M8) Q&A, Help & Troubleshooting] Rivyan:
Hey guys!

Is there any way to add more volume steps? I heard that GravityBox wont do the trick. I just can't find the proper volume level, and it drives me crazy :/
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Anyone here?
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
Usually, but not 24hrs a day. :D

What's up? I'll be online for the next for the next couple of hours on and off.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
I posted 3 days ago.

Please help.

Any questions and suggestions.
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
Try holding power + vol down for 10 to 15 seconds, and it should boot to bootloader. If it does you can flash an RUU.

If you can't power up normally, and you can't boot into bootloader, I'm afraid you'll have to take it for repairs. There is no way fix it yourself if it won't power up (at least from what I know).

Maybe someone else might know some way to, but I don't.

Sorry.
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
I don't know how long you've left it on the charger ('long times' is too vague to be useful info) but make sure it is on the wall charger for at least several hours (overnight). Then try power+vol up, hold those buttons for a minute or more, and see if there is any change (even HTC logo screen). Folks often don't realize you need to hold the buttons what long in certain "stuck" situations, including battery drained/power off. That includes myself, I thought my M8 was bricked some months ago, as I was simply not holding the buttons long enough.
[One (M8) Q&A, Help & Troubleshooting] Altstart:
HTC One M8 intrnational edition

Hi People I have a fully rooted One M8 with unlocked boot loader and S off. Rom is Dirty Unicorns. The problem I have is I cannot download any data from my mobile account therefore Google play is not accessible. I rooted this phone in August 2014 and installed TWRP at the same time. The version of TWRP I installed at the time of rooting is 2.0.0.0. Do I need to update TWRP or will this version allow me to swap this rom to a more modern rom. I have a SD card loaded with the correct version of Skydragon 9 waiting to go.: confused:

Hi Fastboot details are

Tampered

Ulocked

M8_vl PVT ship S Off

Cid-HTC--621

H boot-3.18.0.0000

Radio !.19.21331147A1.09G

Open OSp -

OS-

emmc-boot 2048Mb

Audust 8 2014

Fastboot

Volume etc

Hard boot

ramdump

reboot fastboot

power down

I have been reading and I see there is an app that installs TWRP. Is there a way that I can install this app given that I cannot use Play store. Thank you for your help
[One (M8) Q&A, Help & Troubleshooting] danielgrosvenor:
Hi guys. I feel like I've read a hundred forum threads on this issue but still haven't fixed it, so am turning to the experts! Although I've picked up some knowledge in my trawling I am still pretty inexperienced so hoping I might just be missing something quite simple.

The Basics

HTC One M8. Rooted. S-On. Can't connect to wifi because it needs a firmware upgrade. Can't upgrade the firmware because it's S-On. Can't install a tool to turn S-Off because can't connect to wifi. Arg!

I've managed to get the phone talking to my PC via adb/fastboot which is awesome and let me flash TWRP Recovery. Weirdly it refuses to flash Stock Recovery (it appears to work, but when telling the phone to boot into Recovery it'll just return to the fastboot screen).

Although I'm theoretically able to flash firmware via the same method, I've been unable to locate one my phone will digest.

I'm at a loss, and would greatly appreciate any advice people can offer. :)
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
2.0.0.0? Oh my, that's old!

Yes, you really should update TWRP. It is most likely the problem.

You can download it from here, where you can also find instructions for flashing it.
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
As mentioned, that version TWRP is ancient, and going to cause a lot of problems. Probably fail to install most current ROMs.

I'm guessing (with good reason) that you firmware is probably also really outdated, which similarly will cause a lot of issues, and not be compatible with current ROMs.

My suggestion would be to update firmware, update TWRP, and install a current ROM, and see if that resolves your data issues. Do fastboot getvar all (delete IMEI and serial number before posting) so we can look at the device's details; if you want more definite advice on your device.

---------- Post added at 09:17 AM ---------- Previous post was at 09:11 AM ----------

The radio number you posted would indicate you are on the latest (Marshmallow) firmware. Therefore, the firmware itself does not seem to be the problem. Additionally, you can flash firmware with s-on, you just need a signed firmware zip that matches your CID. But again, I'm not convinced a firmware flash is needed, or would help your WiFi issue.

Did you only root (after unlocking bootloader, installing TWRP), and still on the stock ROM? Or did you install a custom ROM?

List in detail, step by step each thing you did to the phone, including versions numbers (unlock bootloader, install TWRP version xxx, flash SuperSU version xxx, flashed custom ROM xxx, etc.)

The missing main version number (in getvar) would suggest you flashed an old version TWRP, which can cause some problems.

Also be sure to delete your IMEI and serial number from the getvar data. These are personal info, which should never be posted online (and we don't need those numbers to help you).
[One (M8) Q&A, Help & Troubleshooting] k.mehroz:
please help htc m8 stuck in bootloader

hello everyone

i install os 7.1 in my htc and gapps after successful i rebooted my device but it stuck in bootloader, no recovery. s-on, i dont know what to do now

please help me details:-

software status modified

unlocked

M8_DUGL-PVT SHIP S-ON

HBOOT-3.19.0.0000

RADIO- 1.24.30336021.13G

(bootloader) version: 0.5

(bootloader) version-bootloader: 3.19.0.0000

(bootloader) version-baseband: 1.24.30336021.13G

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main:

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

(bootloader) serialno:

(bootloader) imei:

(bootloader) imei2:

(bootloader) meid: 00000000000000

(bootloader) product: m8_dugl

(bootloader) platform: hTCBmsm8974

(bootloader) modelid: 0P6B64000

(bootloader) cidnum: HTC__A07

(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: 205bdca3

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

all: Done!

finished. total time: 0.156s
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
What ROM did you flash? Did you check to make sure it's compatible with the dual SIM M8 (the model you have), and not only the regular M8 devices?
[One (M8) Q&A, Help & Troubleshooting] k.mehroz:
I don't know about rom how can I check
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
It should say in the OP of the ROM thread that the Dual SIM M8 is supported. It probably isn't. Most ROMs only support the M8, not the Dual SIM M8

What ROM did you flash?
[One (M8) Q&A, Help & Troubleshooting] k.mehroz:
i dont know from where i download that. i search soo much solution for this. i am sorry but file name is

lineage-14.1-20170427-nightly-m8-signed.zip - ZIP archive, unpacked size 709,905,815 bytes

please help me
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
Try this ROM instead. It's also the LineageOS ROM, but it's built for the M8 Dual SIM
[One (M8) Q&A, Help & Troubleshooting] k.mehroz:
i will try this

thank you very much for your time and precious advice

i really appreciate

---------- Post added at 11:13 PM ---------- Previous post was at 10:24 PM ----------

how i can install this i dont know i stuck in bootloader and i cant go in recovery

mode
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
Try fastboot erase cache, then try to fastboot flash TWRP again.

Also, I can never remember which M8 variants require different TWRP. I know the M8s needs it's own special version TWRP. Can't remember if the same is true for dual SIM. So confirm you are using the right version TWRP that is compatible with the dual SIM.
[One (M8) Q&A, Help & Troubleshooting] k.mehroz:
Brother now I am using TWRP 3 version. Thank you for your advise.... I updated lineage 14.1 for dual SIM :laugh:
[One (M8) Q&A, Help & Troubleshooting] MisOly:
What is recovery CWM?

And can I flash my recovery again? Already a custom one.
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
Don't use CWM. It hasn't been maintained or updated in three or four years. That goes for Philz recovery as well
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Am i able to flash it again?
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
You can flash recovery as much as you like. But it's not clear what your goal is. If presently on CWM or Philz, you are best replacing it with TWRP (current version 3.1.0 if you phone is on Marshmallow firmware - this will apply to most folks).

If you are already on TWRP, I wouldn't advise going to CWM. As xunholyx already stated, CWM hasn't been updated in years, won't be compatible with most ROMs, and never officially supported the M8 in the first place.

CWM was the staple/standard custom recovery for a long time, but that hasn't been the case for years. Most folks have moved on to TWRP.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Great, are there links for me to flash TWRP?

Thanks
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
Of course there is! Now, if you asking me to provide the link: https://twrp.me/devices/htconem8gsm.html

But am I understanding correctly, that you flashed CWM recovery, without knowing what it was?
[One (M8) Q&A, Help & Troubleshooting] MisOly:
I think you are right, I wanted to flash a custom rom, without knowing the compatibility of those:crying:

What should I do if my HTC m8 is not turning on after I flashed a quite recent rom?
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
I hope you mean the screen is still turning on (even if it's just stuck on the HTC logo screen), but not able to boot fully to the OS?

If so, flash TWRP as you already pretty much figured out. Then try to flash the ROM again.

Beyond that, we would need to know more, to troubleshoot the problem. Do fastboot getvar all, and post the results (delete IMEI and serial number before posting).

You should have made a "nandroid" backup (using whatever recovery you are currently on) of your previous working ROM

before

flashing a custom ROM. That way, when the ROM failed to flash or boot properly, you could just restore the nandroid backup. This is another basic practice, which is sounds like you skipped.
[One (M8) Q&A, Help & Troubleshooting] MisOly:
Thank you for telling me to backup the rom. I deeply wish that I had done so. But my phone did not even show the htc logo after that, it only has flashing charging light.

I am hoping that it will boot to recovery.
[One (M8) Q&A, Help & Troubleshooting] redpoint73:
Try leaving the phone on wall charger for several hours, then hold power+vol up for a minute or so, and see if there is any change (if the screen comes on).

You need to get to at least bootloader screen to do anything.
[One (M8) Q&A, Help & Troubleshooting] xunholyx:
What ROM did you flash? Can you post a link to where you got it or what thread you found it in?
[One (M8) Q&A, Help & Troubleshooting] MisOly:
XXOS?