yashsingh1/xdaforums huggingface dataset:
[One (M8) Q&A, Help & Troubleshooting] SENSEI888:
Would more info be helpful here?

(bootloader) version: 0.5

(bootloader) version-bootloader: 3.19.0.0000

(bootloader) version-baseband: 1.29.214500021.11G

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 6.13.631.7

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

(bootloader) serialno: **************

(bootloader) imei: ****************

(bootloader) imei2: Not Support

(bootloader) meid: 00000000000000

(bootloader) product: m8_ul

(bootloader) platform: hTCBmsm8974

(bootloader) modelid: 0P6B16000

(bootloader) cidnum: ROGER001

(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: 76df2b54

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

all: Done!

I was able to get sim recognition working by doing a data format, factory wipe, then GPE-ROM re-install, but WIFI still knocked out.

Any suggestions?
[One (M8) Q&A, Help & Troubleshooting] SENSEI888:
So, tried flashing back with a TWRP stock backup

CID ROGER001

MID 0P6B16000

6.13.631.7

Then reverted to stock 6.13.631.7 recovery.

Everything booted fine, then "unable to load driver error 19" came up again.

Wifi and bluetooth basically greyout and freeze everytime I try to turn them on.

Any suggestions as to what I can try next?
[One (M8) Q&A, Help & Troubleshooting] SENSEI888:
So figured out the issue.

Needed to update to latest firmware. Thought I had done that when I flashed back to stock.

Missed the step to relock bootloader before flashing firmware with fastboot.

Firmware update went through, and voila....everything up and running...for now.
[One (M8) Q&A, Help & Troubleshooting] petarcrncec:
I'm experiencing very similar problem myself. It seems like the phone was updated ota but it just bugs way too much. When i try to turn on wifi it says failed to load driver, if i turn the air plane mode on and off, and then try to connect to wifi i again get the error, the phone freezes and is stuck in bootlops.

I'm not experienced in flashing but i would like to try to troubleshoot the problem myself. I've heard about the ruu but i'm not sure about my phone variant, and also, do i need root or any type of unlock to reflash my phone to stock ? Tnx.

PS: I bought phone on ebay and it seems like it is running the correct version of stock sense rom.
[One (M8) Q&A, Help & Troubleshooting] Knightofrepublic:
Bro did you read sticky on top which says FREQUENTLY ASKED QUESTIONS ? Much of what you want to know is already there?

Anyway to start off , You turn off the the phone and hold volume down + power button for a few (say 10) seconds and note what it says and post it here.and before you ask,no its not that dangerous
[One (M8) Q&A, Help & Troubleshooting] petarcrncec:
I have read FAQ and there is no specific question related to my problem there. I have found a few people having wifi issues and unexpected shutdowns but non of them were able to fix it. Most of them just returned the phone which led me to believe the problem might be coming from the hardware side. I've already tried cleaning the cache partition and multiple hard resets, and nothing helped. I know it is not dangerous to enter recovery, as I said, I have read the FAQ. The only method of retrieving the phone variant i found was typing getvar in the cmd thingy which can again be false, depending on the flashed software/kernel/radio or whatever (yes i don't distinguish between radio and kernel really. I'm a noob as I said). I tried googling about the RUU and the root permition and didn't find anything usefull accept for the fact that phone has to be S-on, which my phone is.

So, I did do my research, but i can't go through 400 or so pages of help thread to find a specific question, that might not be even there in the first place so i asked it here.

Sorry for your time and long post, but I will return the phone tomorow, because I really can't know whether the device is defected or not, better safe than sorry.
[One (M8) Q&A, Help & Troubleshooting] Knightofrepublic:
well if you can return it then its a good way to do be safe,but as the OP said he solved his problem by updating his firmware . I was going to do suggest just that.l,but as you said you did your research it turned out nothing useful and you have it all figured out anyway ,so good luck
[One (M8) Q&A, Help & Troubleshooting] petarcrncec:
Thanks, I'll need it in case the seller tries to scam me again :D
[One (M8) Q&A, Help & Troubleshooting] sabir.786:
I experience same problem with my HTC Desire 826 it also says that it fails to load driver unknown reason I have multiple times hard reset it I have not rooted I have upgraded to Marshmallow but also experiencing the same problem it's also get heated my WiFi and bluetooth is not working please help me
[One (M8) Q&A, Help & Troubleshooting] ahmed.ismael:
You are in the wrong forum

Anyway this issue on the m8 fixed by updating the firmware ask in your device forum about the firmware
[One (M8) Q&A, Help & Troubleshooting] sabir.786:
I have search for my device its not in ur forum plz help me
[One (M8) Q&A, Help & Troubleshooting] thgm21:
What is the solution to this erorr? Error: unable to load drives, reason unknown (19)? i have the same
[Nexus 6P Q&A, Help & Troubleshooting] Funkwheat:
So as mentioned in the title, I am stuck in a boot loop after botching the OTA upgrade.

Here's the sequence of events thus far...

Current ROM Pure Nexus (not exactly sure which version, 6.01 something I think, but I hadn't updated it in a bit)

Backed up my ROM with TWRP

Due to the fact that I didn't read anything and got over zealous, I dirty flashed the N OTA over Pure Nexus

After dirty flashing it, N booted up and seemed to work ok until apps started crashing like crazy.

Reflashed TWRP

Restored the backup I previously made

Phone has not been working since; it just boot loops

Wiped data; still boot loops

Attempted flashing older bootloaders, radios, and vendor images back to it to no avail; still boot loops

Finally, I backed up everything on internal storage and flashed the latest factory image (MTC20F) straight from Google

STILL BOOT LOOPS

Reinstalled TWRP, wiped data a few more times... still boot loops

I am officially at a loss here. I can get into fastboot and twrp no problem, but the device won't start.

Current info:

BL: angler-03.54

Baseband: angler-03.61

Device is UNLOCKED.

Qfuse Status: Enabled

Any thoughts would be appreciated! I just want to get it into ANY working state at this point.
[Nexus 6P Q&A, Help & Troubleshooting] dontbeweakvato:
Do a full wipe system and vendor and everything, except efs maybe. Flash the twrp 3.0.2 then fastboot flash the factory images of that doesn't work then try to ask Heisenberg.
[Nexus 6P Q&A, Help & Troubleshooting] Funkwheat:
Done, done, and done, to no avail. Same issue, just a boot loop. :(
[Nexus 6P Q&A, Help & Troubleshooting] Jammol:
Just put the phone back to full stock. Follow Heisenberg's guide.
[Nexus 6P Q&A, Help & Troubleshooting] Funkwheat:
Tried that earlier. Did it again just now following his precise instructions and still nothing. Maybe worth noting, though, that I got an error when trying to flash vendor.img. Everything else went fine. Currently not boot looping, but have been at the "Google" screen for about ten minutes.
[Nexus 6P Q&A, Help & Troubleshooting] Heisenberg:
Did you wipe data with TWRP?
[Nexus 6P Q&A, Help & Troubleshooting] Funkwheat:
I wiped it with factory recovery. I'll try again now with TWRP.
[Nexus 6P Q&A, Help & Troubleshooting] Ericarthurc:
I tried..

I followed the guide to do full stock and I am still getting a loop between the google screen and the can't check this software for corruption screen... HELP!

Should I try locking the boot loader?
[Nexus 6P Q&A, Help & Troubleshooting] Heisenberg:
Noooooo! Don't lock the bootloader. If you do that you'll have no way to flash anything and will be royally screwed.
[Nexus 6P Q&A, Help & Troubleshooting] Ericarthurc:
I didnt! I realized that would probably brick it

What should i do then? I did the complete back to stock guide and still a loop :C
[Nexus 6P Q&A, Help & Troubleshooting] Funkwheat:
I've now flashed TWRP and wiped data with it. Still no luck. Interestingly, though, I'm now getting stuck on the Google screen and not actually technically boot looping.

Had you flashed Nougat at any point? Not sure if you're having the same issue or not.
[Nexus 6P Q&A, Help & Troubleshooting] Heisenberg:
I really don't know what either of you should do. Wiping and flashing the factory images should fix anything on a Nexus.
[Nexus 6P Q&A, Help & Troubleshooting] Ericarthurc:
Yeah I had flashed Nougat and gotten it to work. But where some root issues so I was going to go back to Pure Nexus, I wiped everything and flash MTC20F boot and radio and vendor and on reboot started having the loop
[Nexus 6P Q&A, Help & Troubleshooting] Ericarthurc:
Well I am doing a complete wipe back to 6.0.0 (MDA89D) I will let you know if it works...
[Nexus 6P Q&A, Help & Troubleshooting] Heisenberg:
It should have booted after 10 minutes, normally. But, if is trying to encrypt it could take a very long time. Were you previously decrypted?
[Nexus 6P Q&A, Help & Troubleshooting] Ericarthurc:
Just did you guide back to 6.0.0 (MDA89D) and the phone is still looping between the google screen and the "cant check for corruption screen"... Am I just bricked?? I have no idea what to even try...
[Nexus 6P Q&A, Help & Troubleshooting] Funkwheat:
I don't think so, unless that's something that happened automatically. I was on PureNexus (unsure which build).
[Nexus 6P Q&A, Help & Troubleshooting] Funkwheat:
Looks like you and I are having the exact same issue... We both went to today's OTA, both ended up attempting to go back, and are both in boot loop states now.... Wonder if this is an actual issue. Hope we can figure it out, cause until then I'm without a phone entirely.
[Nexus 6P Q&A, Help & Troubleshooting] AndrewM3:
so I am on pure nexus the latest build running xposed and ex kernel. How would I flash android 7..0 and not get this bootloop, if I format completely wipe my phone in twrp would that do it before I flash the ota.zip?
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
Problem is I don't have a backup anywhere.

---------- Post added at 03:11 PM ---------- Previous post was at 03:09 PM ----------

That would be appreciated.

---------- Post added at 03:12 PM ---------- Previous post was at 03:11 PM ----------

Any chance of sharing a backup without the data?
[Nexus 6P Q&A, Help & Troubleshooting] BakedTator:
OK...fixed my issue...almost...flashed dp5 and the flashed mm vendor...phone boots

My imei is not available and same with modem...looking for the next step in fixing this issue
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
Seems we need a nandroind to fix it.... Possibly someone can factory reset and make a nandroind of that before it boots up.
[Nexus 6P Q&A, Help & Troubleshooting] BakedTator:
Working that out now...my friend uploaded one for me...going to test it and report back...if it works, I will link you guys to the files
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
so if I flash stock then twrp immediately do a backup and a restore all in the same it will just hang on the google logo and not bootloop.
[Nexus 6P Q&A, Help & Troubleshooting] disbeyad999989:
The problem your having is that you didnt back up your efs :( see if you fan find a backuo of your efs
[Nexus 6P Q&A, Help & Troubleshooting] BakedTator:
Well...good news and bad news...you already know I have my phone booting with the mm vendor image and nougat

Bad news is the backup don't work...it makes the problem recur

At this point I have my baseband and imei as not available and things look a little weird

Still may have to send it in to get fixed...giving it until Monday before I send mine iff
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
did you do these steps?

1. Flash a stock image (I used the August stock image MTC20F)

2. Fastboot flash TWRP 3.0.2-0

3. Boot into TWRP

4. Select Wipe -> Advanced Wipe -> Select and repair each partition individually (some won't be able to, and that's fine, just move on to the next one)

5. Restore a full nandroid backup (make sure everything is selected) and reboot

6. You should now be free of the never ending boots, and if your device is bootlooped at this point (stuck at the boot animation), you can just flash stock again.
[Nexus 6P Q&A, Help & Troubleshooting] BakedTator:
I have done this but I don't have a full backup of my phone...my daughter got on my computer and deleted my backed up stuff from it, she's 2 1/2 years old, and now I don't have a backup of my efs

But none the less, still won't boot on mm and only boots nougat with the mm vendor image (which makes no sense)
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
This sucks.
[Nexus 6P Q&A, Help & Troubleshooting] disbeyad999989:
After you follow the steps above and it finally boots try and flash a factory image and see if thats fixes your issue. I bet you havent tried that, but kaje sure you follow tue steps first and it boot before you flash the factory image.
[Nexus 6P Q&A, Help & Troubleshooting] Ericarthurc:
So I have an interesting thought of what could be causing this. Firstly, the factory image for the Nexus 6p isn't even out yet. All the flashing to stock 7 and theses custom roms on XDA for Android 7 are built around the OTA update. Google really doesn't think that the average user using the OTA update also has a custom recovery and an unlock boot loader. Most people just upgrade to 7 and never look back. Some one was saying that OTA updates work slightly different compared to the Factory Image (not even out yet). Honestly I would stay away from any rom right now with Android 7 due to that fact its built around the OTA update. There seems to be no common variable in these issues expect that everyone is flashing the OTA. Just a thought and honestly can't be proven until the factory image comes out. But I think that lack of patience for a Nexus 6p Android 7 factory image shot us all in the butt.
[Nexus 6P Q&A, Help & Troubleshooting] helioXverse:
Just saw this provided in another thread. I haven't seen any reference to it in this thread, only use of factory images.

https://productforums.google.com/forum/#!topic/nexus/hdrNONCCoNE

It apparently is an emergency rescue for failed upgrades.

**Credit to minicoop7
[Nexus 6P Q&A, Help & Troubleshooting] halocorn:
Hi, just recently had this problem as well. Follow just about everything on here and a few random things. Nothing as worked yet. I am currently attempting the link you posted.
[Nexus 6P Q&A, Help & Troubleshooting] helioXverse:
I haven't tried it, as I haven't experienced this issue. But I hope it can help someone restore their phone.
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
tried it, first i flashed stock images for 20f then sideloaded the corresponding ota like it says and i get an error

vendor partition has unexpected non-zero contents after ota update then it fails with status 7.
[Nexus 6P Q&A, Help & Troubleshooting] tr4nqui1i7y:
Have people been checking the dmesg? Mine doesn't really seem to have any failures in it.
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
at what point? in recovery since it don't boot.
[Nexus 6P Q&A, Help & Troubleshooting] tr4nqui1i7y:
Your device saves a log in cache after a failed boot. You can view it in adb or in stock recovery. I checked mine after it hung for 20+ minutes. It seems to just stop, rather than failing.
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
ok after i wiped cache and areset in recovery this still did not work. I flashed initial stock booted to recovery sideloaded the ota and got the same bootloop.
[Nexus 6P Q&A, Help & Troubleshooting] tr4nqui1i7y:
I've tried everything found on g.co/ABH, tried every toolkit for our device, tried adb sideloading, tried flashing a ROM, I've tried fixing partitions, wiping anything and everything. I can't imagine what is causing this.

Sidenote, I never flashed anything past MTC20F, and I still got this issue.

Edit: dmesg finally found something useful. Kernel panic.

androidboot.bootreason=kernel_panic androidboot.hardware.sku=H1511 androidboot.secure_hardware=1

mounted filesystem with ordered data mode. Opts: barrier=1, data+ordered.nomblk_io_submit.noauto_da_alloc.error=panic

<7>[ 104.205095] SELinux: initialized {dev mcblk0p38, ext4}, uses xattr
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
ok after i wiped cache and a reset in recovery this still did not work. I flashed initial stock booted to recovery sideloaded the ota and got the same bootloop.
[Nexus 6P Q&A, Help & Troubleshooting] rbouza1:
It's just an OTA nothing special about it at all
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
according to this https://productforums.google.com/forum/#!topic/nexus/hdrNONCCoNE

it should be but here we are.
[Nexus 6P Q&A, Help & Troubleshooting] tr4nqui1i7y:
The site that google directs you to on-screen is similar.

g.co/ABH - for ota and full firmware. Not helpful in our case.

Seems a lot of the replies of people offering help aren't reading what everyone has been trying :/
[Nexus 6P Q&A, Help & Troubleshooting] FragmentsOfLife:
If you were never on Nougat, it seems like this is an entirely different issue with the same symptoms?
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
the part that is killing me the most is the lack of factory images for this phone.... 5x has it n9 has it pixel c but not the current flagship... really?
[Nexus 6P Q&A, Help & Troubleshooting] Juzman:
I've tried everything in this thread to install MTC20F to no avail. Still looping at Google logo. :(
[Nexus 6P Q&A, Help & Troubleshooting] FragmentsOfLife:
To be clear, are you stuck at the Google logo? Or does it alternate between the Google logo and Bootloader corruption warning screen?
[Nexus 6P Q&A, Help & Troubleshooting] Juzman:
Google > Your device software can't be checked for corruption. > Google and repeat.
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
It's such a nightmare I even went into console and manually formatted every partition and hen flash. Only thing that half works is flash N final ota and then the 20f vendor which leaves you with an Android iPod with no camera or sim
[Nexus 6P Q&A, Help & Troubleshooting] FragmentsOfLife:
Sounds like you need to restore a backup of your EFS. If you don't have one, you might be screwed.
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
The only thing I'm hopeful for is factory n images after that I either need to buy another phone..... Or harass Huawei till they replace since I got this phone in April.

---------- Post added at 11:51 PM ---------- Previous post was at 11:50 PM ----------

People have tried that and still bootloops
[Nexus 6P Q&A, Help & Troubleshooting] Juzman:
I flashed DP5 factory image, then MTC20F vendor, and it boots! This is strange.
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
In my situation the last thing I did before the bootloops was upgraded to the latest twrp backed up the purenexus rom I had installed tested a new kernel which worked fine, decided to restore the nandroid and here I am.

---------- Post added at 11:55 PM ---------- Previous post was at 11:54 PM ----------

Odd right? I don't get it but I feel everyones issue has to do with the vendor image
[Nexus 6P Q&A, Help & Troubleshooting] Juzman:
I tried to restore my EFS backup in TWRP2, but getting error:

E: unable to find file system (first period).

E: unknown restore method for '/efs2'
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
I really think something jacked up the vendor partition itself, maybe size?

---------- Post added at 07:05 PM ---------- Previous post was at 07:02 PM ----------

if you want a fully upgraded N android pod install the dp5 then boot to recovery and sideload the 50mb update to final... with this https://android.googleapis.com/pack.../cd46eea77538f6a35b49e26893a7962987b7c4ad.zip

then flash the 20f vendor
[Nexus 6P Q&A, Help & Troubleshooting] ciocu:
I guess I'm joining the club with my 6p having the same issues as you guys.. (+no access to recovery :eek::eek: )

sorry, I previously posted on http://xdaforums.com/nexus-6p/help/nexus-6p-android-7-0-bootloop-access-t3449214
[Nexus 6P Q&A, Help & Troubleshooting] disbeyad999989:
Guys its very simple, flash the stock mtc20f image first. After that boot it, it wont work but don't worry. Onece it bootloops go into bootloader and fastboot flash twrp 3.0.2-0. once thats done boot into twrp recovery. Onece in twrp make a backup of the image you just flashed that don't work. Once thats done mount system in recovery. Once mounted plug phone into computer and open the twrp folder you will see on your internal wich will have the backup that you just made. Transfer an old working backup into that folder that way twrp will recognize that backup. Once the backup is in the folder you shoukd see 2 backups in there, your new one that doesn't boot and your old one that does work wich you just put into the twrp folder. Once done go to restore and restore the backup of the working rom you just put in there, make sure to check off all on restore. Once done reboot system and it should boot. This will only work if you have a backup of an old working rom.

---------- Post added at 12:22 AM ---------- Previous post was at 12:19 AM ----------

And guys please stop trying to boot recovery twrp 3.0.2-0 on a android n rom because it won't boot you have to use twrp 3.0.2-1 if you are trying to boot it with and android n rom. But please try the method above if you are getting endless bootloops
[Nexus 6P Q&A, Help & Troubleshooting] BakedTator:
Seems we have to use the warranty on the device...I'm rocking my android pod until Monday (when my new phone gets here).

If you want android n, upgrade to it, flash the no force encryption kernel, root and leave it alone after that
[Nexus 6P Q&A, Help & Troubleshooting] tr4nqui1i7y:
Yea, I don't think it is tied to nougat. I have seen other users on the web that weren't even rooted/custom rom.

I think it could just be an error in the filesystem somehow.

You are looking for nougat factory images, I take it?
[Nexus 6P Q&A, Help & Troubleshooting] joeyddr:
None of this works

---------- Post added at 12:35 AM ---------- Previous post was at 12:34 AM ----------

That is the only thing we have yet to try cause it don't exist yet.
[Nexus 6P Q&A, Help & Troubleshooting] disbeyad999989:
Thats wierd bro cuz this is how i fixed my phone, it woulnt boot, not even with me flashing the stock image
[Nexus 6P Q&A, Help & Troubleshooting] Juzman:
Before I tried N, I made a nandroid backup of my working PN setup.

I have stock MTC20F image, and did the following (I had TWRP-3.0.2-1).

1. fastboot flash bootloader bootloader-angler-angler-03.54.img

2. fastboot reboot-bootloader

3. fastboot flash radio radio-angler-angler-03.61.img

4. fastboot reboot-bootloader

5. fastboot flash boot boot.img

6. fastboot format cache

7. fastboot flash cache cache.img

8. fastboot flash recovery recovery.img

9. fastboot flash system system.img

10. fastboot flash vendor vendor.img

11. fastboot format userdata

12. fastboot reboot

As per usual it boot-looped. I rebooted into bootloader.

1. fastboot flash recovery twrp-3.0.2-0-angler.img

2. Booted TWRP 3.0.2-0, and swiped to allow modification

3. Made a nandroid backup then mounted /system and plugged phone in

4. Copied old nandroid backup I made into the TWRP folder

5. Restored the nandroid backup (Boot, Data, System)

6. Rebooted

Just gets boot-loop.

Please lock bootloader > Google > Please lock bootloader > Google
[Nexus 6P Q&A, Help & Troubleshooting] Carlis:
OMG this did it THANKS MAN !!!!!!

My N6P i awake again.
[Nexus 6P Q&A, Help & Troubleshooting] disbeyad999989:
When i restored my backup it was a backuo of cm13 and it included boot,data,system,cache,efs. If you have a custom rom backuo try that cuz thats what worked for me.
[Nexus 6P Q&A, Help & Troubleshooting] Juzman:
PN rom doesn't contain a vendor.img - did you just flash vendor.img from MTC22F?