Database Users

(Accidental) Reboot After Wiping System & SD-Card [SOLVED]

Got a sticky situation here:
Was gonna flash the SlimBean Rom, so I entered CWM, and had a braindead moment when I wiped SD card after wiping the system AND THEN HITTING REBOOT. Consequence: Stuck in Bootloader or Start-up screen, nowhere to go. I'm not a total newbie in flashing roms, it was literally 2 seconds of brainfart and POOF! Screw'd up.
So what I wanna know is, has my Nexus 7 reached the point of no return or is there ANY sort of way to restore/reboot/salvage it?!
Thanks alot in advance!

Are you able to enter recovery, remount /sdcard/ and push the ROM via ADB?

per910 said:
Got a sticky situation here:
Was gonna flash the SlimBean Rom, so I entered CWM, and had a braindead moment when I wiped SD card after wiping the system AND THEN HITTING REBOOT. Consequence: Stuck in Bootloader or Start-up screen, nowhere to go. I'm not a total newbie in flashing roms, it was literally 2 seconds of brainfart and POOF! Screw'd up.
So what I wanna know is, has my Nexus 7 reached the point of no return or is there ANY sort of way to restore/reboot/salvage it?!
Thanks alot in advance!
Click to expand...
Click to collapse
I had this happen to me too! Luckily you can get back into CWM pretty easily. Hold down all buttons down until you see the device reset then quickly release and press down all the buttons again. It might take you a few tries but if you time it right it should work.
Hope this helps

Stumbled upon some other threads here, did some "unbricking" (technically mine wasn't completely bricked since i still had access to bootloader screen) by returning to stock as per instructions here and voila! All's good in the hood! Thanks for the tips guys anyway! Cheers! :good:

nexus 7 help please

my nexus 7 is stuck in bootloader with no recovery ive tried the flash back to stock and unroot option on the wugfresh nexus toolkit 1.5.3 and it works all the way til sending system the little - mark still flashes but i left it for like 20m and it still didnt work ive tried multiple times and i clicked cant boot up option, please help

Hold the power button for over 10 seconds and it will reboot its self

Jordanooo said:
Hold the power button for over 10 seconds and it will reboot its self
Click to expand...
Click to collapse
it stops at the google screen and just freezes

How are you certain your recovery is gone? You might just be stuck in bootloop. Your best bet is to use toolkit to get you into recovery. Whether Twrp or CWM. From there youcan flash a new kernel and see if it fixes it or use it to restore a backup.
I had similar issue where it was stuck on boot screen. I ccouldn't enter recovery normally. Only way was hooking it up to a pc. Then using a toolkit to make the tablet go into recovery. Then from there, I could use recovery on tablet itself and restore a backup. From there I was good again. Problem solved for me.
Try one of the other toolkits, like Sambra one. Make sure drivers properly installed though.

demandarin said:
How are you certain your recovery is gone? You might just be stuck in bootloop. Your best bet is to use toolkit to get you into recovery. Whether Twrp or CWM. From there youcan flash a new kernel and see if it fixes it or use it to restore a backup.
I had similar issue where it was stuck on boot screen. I ccouldn't enter recovery normally. Only way was hooking it up to a pc. Then using a toolkit to make the tablet go into recovery. Then from there, I could use recovery on tablet itself and restore a backup. From there I was good again. Problem solved for me.
Try one of the other toolkits, like Sambra one. Make sure drivers properly installed though.
Click to expand...
Click to collapse
i tried to flash cwm back to the tablet and it said couldnt not mount sd card when i went on to it

can you post a link for that samba toolkit please?

wait i just remembered i dont have a backup, any other ways to get it up and working? please help

xfrancis14 said:
wait i just remembered i dont have a backup, any other ways to get it up and working? please help
Click to expand...
Click to collapse
It's an easy fix, just use wug's toolkit and flash the stock Nexus 7 image. It will be like brand new. I don't think you had a very major problem at all to begin with just a minor bootloop, but this far along I'd restore it to stock and start fresh.

CharliesTheMan said:
It's an easy fix, just use wug's toolkit and flash the stock Nexus 7 image. It will be like brand new. I don't think you had a very major problem at all to begin with just a minor bootloop, but this far along I'd restore it to stock and start fresh.
Click to expand...
Click to collapse
ive tried that and it gets to sending system and i leave it for like 10 15 minutes and it just still says that when i come back

xfrancis14 said:
ive tried that and it gets to sending system and i leave it for like 10 15 minutes and it just still says that when i come back
Click to expand...
Click to collapse
I had the same thing happen, but I ran it again and let it have its time and it went on and completed.

CharliesTheMan said:
I had the same thing happen, but I ran it again and let it have its time and it went on and completed.
Click to expand...
Click to collapse
ive tried a few times ill try again tho
UPDATE its still going its been bout since i posted this last post im gonna leave it still but do you think maybe its my computer?

still not working please help

Try using a different cable or re downloading the image file
Sent from Galaxy SIII

i didnt do anythiing and now when i try to flash back to stock it gets to the bootloader thing and finishes that and then it says missing system file 420 000 something kb and then cancels the operation i tried downloading a new system image from google and it still says the same thing help :/ im really worried, i dont wanna broken nexus 7 :/

Please copy paste the terminal (i.e. What you typed in, what outputs it gave you back)
Sent from my Nexus 7 "the most cost-effective iPad yet"

Try locking the boot loader and unlocking it again, then rooting flashing and so on..
Sent from my Nexus 7 using xda app-developers app

now i got it to the point where it goes back to sending system but it still stops, if i do relock the bootloader how would i unlock it? and if i did root it it wouldnt make a difference cause i cant get back to an os

[Q] Baffled, Confused, Stuck... sniffing KitKats

Hello guys
For some reason I decided to test out the CM and Slim 4.4 roms, but did not see that there were issues flashing with TWRP... so flashing failed with both these ROMS. I did not read the ops on Slim and did not see any warning about TWRP on the CM, so began wiping stuff to try make the flash happen, eventually wiped too much, and now I cannot boot the tablet. Worse is I have also wiped the zip files from the tablet so now I have PhilZ Touch CMW recovery but nothing to flash and this Recovery does not suppot OTG memory, so I have nothing to flash.
SO, tried my full version of Nexus 10 Toolkit to sideload the zip, but Toolkit never gets past "Toolkit Waiting for ADB mode".
I don't know the manual commands to try flash one of these roms, but at this point, I would be happy to just go back to stock, and cant figure how to get to Download mode, there is no home button on an N10.
It seems my safest bet, if possible, would be to get to download and flash a rom there.
Any ideas, much appreciated,
Mark.

fredphoesh said:
Hello guys
For some reason I decided to test out the CM and Slim 4.4 roms, but did not see that there were issues flashing with TWRP... so flashing failed with both these ROMS. I did not read the ops on Slim and did not see any warning about TWRP on the CM, so began wiping stuff to try make the flash happen, eventually wiped too much, and now I cannot boot the tablet. Worse is I have also wiped the zip files from the tablet so now I have PhilZ Touch CMW recovery but nothing to flash and this Recovery does not suppot OTG memory, so I have nothing to flash.
SO, tried my full version of Nexus 10 Toolkit to sideload the zip, but Toolkit never gets past "Toolkit Waiting for ADB mode".
I don't know the manual commands to try flash one of these roms, but at this point, I would be happy to just go back to stock, and cant figure how to get to Download mode, there is no home button on an N10.
It seems my safest bet, if possible, would be to get to download and flash a rom there.
Any ideas, much appreciated,
Mark.
Click to expand...
Click to collapse
From recovery power down your tablet and get into fastboot by holding volume buttons and power buttons at the same time. If this works then you'll be fine because from there you can get back to stock. Download wugfreshs nexus toolkit. Use the option to return to stock and check the one that says stuck in bootloop but can access fastboot (or something like that) then plug your tablet in while its in fastboot mode and go through the steps. It'll have to download stock factory image unless you already have it and browse to it but the toolkit will do everything and get your tablet working again. Don't worry too much its usually not as bad as it seems. The same thing happened to me and I panicked and it turned out to be an easy fix. If you need any more help or more detail on what to do just ask
Sent from my Nexus 10 using xda app-developers app

Thanks Abdel, that worked fine... though I did spend about an hour on Wugfresh last night, it kept on starting to do stuff, then got to recovery mode and it stopped with wufgresh saying waiting for device or something... maybe shutting computer helped too... anyway, thanks for the advice, somehow it worked!
Cheers
Mark.
abdel12345 said:
From recovery power down your tablet and get into fastboot by holding volume buttons and power buttons at the same time. If this works then you'll be fine because from there you can get back to stock. Download wugfreshs nexus toolkit. Use the option to return to stock and check the one that says stuck in bootloop but can access fastboot (or something like that) then plug your tablet in while its in fastboot mode and go through the steps. It'll have to download stock factory image unless you already have it and browse to it but the toolkit will do everything and get your tablet working again. Don't worry too much its usually not as bad as it seems. The same thing happened to me and I panicked and it turned out to be an easy fix. If you need any more help or more detail on what to do just ask
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse

fredphoesh said:
Thanks Abdel, that worked fine... though I did spend about an hour on Wugfresh last night, it kept on starting to do stuff, then got to recovery mode and it stopped with wufgresh saying waiting for device or something... maybe shutting computer helped too... anyway, thanks for the advice, somehow it worked!
Cheers
Mark.
Click to expand...
Click to collapse
Your welcome I'm glad you got it working. Make sure to that k wugfresh as well for his awesome tool
Sent from my Nexus 10 using xda app-developers app

Very specific bootloop issue

Heads up, this is a bit of reading
Ok so two nights ago, I was messing with the phone a little bit attempting to put Google Assistant on the phone. I had gotten a new cable from Amazon which enabled me to finally plug my 6P into the computer and my bootloader was already unlocked as I did so before but the issue was that I didn't have twrp yet on my phone. After I got it all set up with adb/fastboot etc. I tried to flash twrp. It didn't work, I kept getting stock recovery to come up so I ended up chalking it up for another day. As I was watching my beloved school lose in the Rose Bowl, I realized that the phone was rebooting. Not sure why but it just started doing it. After that, the phone turned on after rebooting for about 45 mins and it stood on for about 10 mins. After that, it went back to bootlooping and did so without getting to the android boot up screen all night.
Pissed, I decided to try to fix it myself but after I woke up, I found the recovery to be inaccessible through the bootloader which I could previously enter even through all of the bootlooping. After the bootlooping started, I couldn't flash a recovery so figuring it was the new cable, I switched to the older one. Well after doing that, I was able to flash the stock recovery and get adb working again. Using a guide, I flashed the newest factory image that was just released which is N4F26J (my phone was on the NMF26F update), and after a few bootloops, the phone turned on!
Ecstatic, I skipped past all the setup screens and went immediately to developer options and I activated usb debugging. Shortly after this, the bootlooping restarted and I wasn't able to get it to get back to the phone. Using the Wugs toolkit, I continued to use that to get the factory images on the Nexus and usually after I would use it to flash the ota, it would reboot a few times and get to the welcome screen where I could use the phone for about 5 mins. before it started bootlooping again. Fearing it was just Google's OTAs, I switched ROMs using twrp and adb to this ROM https://forum.xda-developers.com/nexus-6p/development/rom-debloated-prerooted-deoxeded-t3372600 (All Credit For The Rom Goes To Him), and after a few reboots, I got it up and running but after a few mins, the bootlooping started again. I noticed that when I use the toolkit to get into the twrp recovery, it constantly says in Red Letters about it not being able to mount storage.
If anyone please can help me figure this out, I would really really appreciate it. I can't send it to Huawei because it has a very slight crack on the screen and with me being a college student, I can't afford the $160 that they want to replace it. Somebody please give me any type of insight so I can try to fix this on my own. Please

btw before every flash, I followed all steps you should with wiping cache, dalvik, etc. Not sure if that would make a difference

Exbruce said:
Heads up, this is a bit of reading...
Click to expand...
Click to collapse
Since you are familiar with NRT, I would start by running Advanced Utilities and fastboot FORMAT cache, system and userdata. Then go back to Flash Stock+ Unroot. Make sure you are set on at least NMF26F if Wug hasn't already updated to N4F26J yet. Flash stock. That should get you back up and running. There are other ADB options from the PC if this doesn't work for you.

v12xke said:
Since you are familiar with NRT, I would start by running Advanced Utilities and fastboot FORMAT cache, system and userdata. Then go back to Flash Stock+ Unroot. Make sure you are set on at least NMF26F if Wug hasn't already updated to N4F26J yet. Flash stock. That should get you back up and running. There are other ADB options from the PC if this doesn't work for you.
Click to expand...
Click to collapse
Ok I'll give it a shot and let you know how it goes.

Exbruce said:
Ok I'll give it a shot and let you know how it goes.
Click to expand...
Click to collapse
I think the problem you had with TWRP not sticking on Nougat is that you need to flash SuperSU after or the phone will revert back to stock recovery. Not that it helps with your boot loop issue.

v12xke said:
Since you are familiar with NRT, I would start by running Advanced Utilities and fastboot FORMAT cache, system and userdata. Then go back to Flash Stock+ Unroot. Make sure you are set on at least NMF26F if Wug hasn't already updated to N4F26J yet. Flash stock. That should get you back up and running. There are other ADB options from the PC if this doesn't work for you.
Click to expand...
Click to collapse
Tried it and no dice. Hasn't stopped bootlooping for the past hour

I think you have the issue aoy of us are having which after three or four days I have not been able to fix. RMA with Huawei maybe the only way out of it.
Sorry man it doesn't look good.

v12xke said:
Since you are familiar with NRT, I would start by running Advanced Utilities and fastboot FORMAT cache, system and userdata. Then go back to Flash Stock+ Unroot. Make sure you are set on at least NMF26F if Wug hasn't already updated to N4F26J yet. Flash stock. That should get you back up and running. There are other ADB options from the PC if this doesn't work for you.
Click to expand...
Click to collapse
galakanokis said:
I think you have the issue aoy of us are having which after three or four days I have not been able to fix. RMA with Huawei maybe the only way out of it.
Sorry man it doesn't look good.
Click to expand...
Click to collapse
Yeah it sucks simply because I've managed to get it from not booting to recovery to booting to the Rom but it just won't stick. This is hands down the worst experience I've ever had with a phone. The fact that Huawei wont replace it without that $160 is ridiculous to me because I've really done nothing wrong with it, it just konked out leaving me without a phone. Wow

Its probably google trying to force us into a pixel phone. If my 6p eats it, im done with Google phones. I love this phone. Its the best ive ever had. I'd definitely pay 160 for another if they could assure me no more bootloops. It sucks for people that can't afford it.

Exbruce said:
..... After the bootlooping started, I couldn't flash a recovery so figuring it was the new cable, I switched to the older one. Well after doing that, I was able to flash the stock recovery and get adb working again. Using a guide, I flashed the newest factory image that was just released which is N4F26J (my phone was on the NMF26F update), and after a few bootloops, the phone turned on!
Ecstatic, I skipped past all the setup screens and went immediately to developer options and I activated usb debugging. Shortly after this, the bootlooping restarted and I wasn't able to get it to get back to the phone. Using the Wugs toolkit, I continued to use that to get the factory images on the Nexus and usually after I would use it to flash the ota, it would reboot a few times and get to the welcome screen where I could use the phone for about 5 mins. before it started bootlooping again. Fearing it was just Google's OTAs, I switched ROMs using twrp and adb to this ROM https://forum.xda-developers.com/nexus-6p/development/rom-debloated-prerooted-deoxeded-t3372600 (All Credit For The Rom Goes To Him), and after a few reboots, I got it up and running but after a few mins, the bootlooping started again. I noticed that when I use the toolkit to get into the twrp recovery, it constantly says in Red Letters about it not being able to mount storage.
Click to expand...
Click to collapse
There well may well be a hardware problem with your device BUT I read your post again and I see a few possibilities. One is that you may have been using an unreliable data cable, and you didn't mention hash checking files before flashing. Second, it sounds like you had installed a factory image, and afterwards applied an OTA to the phone (and then a custom rom). Once you apply the full N4F26J image, there is no need use any OTA! Start with the latest image. Lastly, your data became encrypted when you booted the first time so you are getting mounting errors in TWRP. My advice would be to reformat again as above, manually download the full factory image N4F26J and use NRT to install it. NRT has not updated the toolkit yet, so you will have to d/l manually. NRT should hash check the file you downloaded. Use the bricked mode to Unroot+Flash Stock. You never mentioned running unencrypted, so I assume the default encryption is what you want. The idea is to attempt to get you back to stock with a device free from bootloops. If this doesn't work, then you'll need to use ADB.

v12xke said:
There well may well be a hardware problem with your device BUT I read your post again and I see a few possibilities. One is that you may have been using an unreliable data cable, and you didn't mention hash checking files before flashing. Second, it sounds like you had installed a factory image, and afterwards applied an OTA to the phone (and then a custom rom). Once you apply the full N4F26J image, there is no need use any OTA! Start with the latest image. Lastly, your data became encrypted when you booted the first time so you are getting mounting errors in TWRP. My advice would be to reformat again as above, manually download the full factory image N4F26J and use NRT to install it. NRT has not updated the toolkit yet, so you will have to d/l manually. NRT should hash check the file you downloaded. Use the bricked mode to Unroot+Flash Stock. You never mentioned running unencrypted, so I assume the default encryption is what you want. The idea is to attempt to get you back to stock with a device free from bootloops. If this doesn't work, then you'll need to use ADB.
Click to expand...
Click to collapse
Ok I'll give it a shot and let's see how this goes *fingers crossed*
UPDATE: Gave it a shot and it booted up to the welcome screen for about 2 mins and then started the bootloop all over again. Looks like the only option is to RMA the device at this point

Exbruce said:
Ok I'll give it a shot and let's see how this goes *fingers crossed*
UPDATE: Gave it a shot and it booted up to the welcome screen for about 2 mins and then started the bootloop all over again. Looks like the only option is to RMA the device at this point
Click to expand...
Click to collapse
Your phone is worth a lot more than 160.00 so it's probably best to RMA even if the charge seems unfair. You could always sell the RMA phone for a lot more than 160.00 if you've had enough of the 6P.

Exbruce said:
UPDATE: Gave it a shot and it booted up to the welcome screen for about 2 mins and then started the bootloop all over again. Looks like the only option is to RMA the device at this point
Click to expand...
Click to collapse
Sorry to hear that. Not ready to throw in the towel?
Have you tried doing a factory reset after the latest bootloop?
Any errors when formatting the 3 partitions, or during the flash process?
It could be looping for some reason during the initial encryption process which happens during first boot. I would try using a "no force-encrypt" modified boot.img before booting the first time to prevent the encryption process. If you prevent encryption, you may prevent the bootloop. You can find the boot.img on this forum, or use Wug's from the previous build, or even flash SU 2.79 to modify your boot.img.
If that doesn't work, you could try extracting files you need from the factory image, fastboot format and flash img files manually, including the modified boot.img.

Sold Phone, Tried to Factory Reset, Got Boot Loop

Hey there.
I have a desperate problem. I sold my rooted LGV20 (the t mobile variant) on ebay last night. I went this morning to factory data reset it, and I was thrown into a bootloop. I still have TWRP, and it boots into it by default. The /system partition appears to be refusing to mount at boot but I'm not sure. I've tried the steps in this thread
https://forum.xda-developers.com/v20/development/h918-stock-deodex-debloat-t3499423
(the original rom I used) for people stuck in boot loop. No luck. Also dug around and found this
https://forum.xda-developers.com/v20/how-to/solution-to-fix-twrp-loop-t3563532
but that didnt work either.
Please help! I've searched and searched and just cant figure out what to do, even with TWRP still working!

The only thing I haven't tried is re-rooting, because I'm worried about losing access to TWRP. Forgot to mention.

Download the kdz and lgup and do a factory restore
Sent from my LG-H910 using Tapatalk

OP ···
Pull battery.
Hold vol down hit power button.
When triangle screen pops up, let go power, hit power button once, let go.
Select yes twice to go to twrp.
Reflash ROM now.
The above sequence is dependent upon timing.
It works. If you don't get to the screen to select YES you did it wrong.
Maybe rooted phone from zv3. Phone keeps downloading update via FOTA. Phone may be trying to flash update, borking phone in process.

marley.stacy said:
Hey there.
I have a desperate problem. I sold my rooted LGV20 (the t mobile variant) on ebay last night. I went this morning to factory data reset it, and I was thrown into a bootloop. I still have TWRP, and it boots into it by default. The /system partition appears to be refusing to mount at boot but I'm not sure. I've tried the steps in this thread
https://forum.xda-developers.com/v20/development/h918-stock-deodex-debloat-t3499423
(the original rom I used) for people stuck in boot loop. No luck. Also dug around and found this
https://forum.xda-developers.com/v20/how-to/solution-to-fix-twrp-loop-t3563532
but that didnt work either.
Please help! I've searched and searched and just cant figure out what to do, even with TWRP still working!
Click to expand...
Click to collapse
jerrycoffman45 said:
Download the kdz and lgup and do a factory restore
Sent from my LG-H910 using Tapatalk
Click to expand...
Click to collapse
Agree with @jerrycoffman45 that way should work and bring you back to stock. Good luck.