Nexus 7 Recovery Problem - Nexus 7 Q&A, Help & Troubleshooting

Ok, so I've got a huge problem. First of all, my PC doesn't see my Nexus at all... I've tried all the fixes. In a last ditch effort I tried downgrading to CM 10.0, but I forgot to wipe the data etc. So now it's stuck in a boot cycle. Also My recovery is somehow messed up!
So I can't connect it to my computer, my recovery is messed up, and the Rom isn't booting. HELP!

o0ven0o said:
Ok, so I've got a huge problem. First of all, my PC doesn't see my Nexus at all... I've tried all the fixes. In a last ditch effort I tried downgrading to CM 10.0, but I forgot to wipe the data etc. So now it's stuck in a boot cycle. Also My recovery is somehow messed up!
So I can't connect it to my computer, my recovery is messed up, and the Rom isn't booting. HELP!
Click to expand...
Click to collapse
What do you mean by 'recovery is messed up'? What is happening?
These might be of some use to you..
Sent from my Nexus 7

vbhtt said:
What do you mean by 'recovery is messed up'? What is happening?
These might be of some use to you..
Sent from my Nexus 7
Click to expand...
Click to collapse
I mean when I boot into recovery, it stays on the Google logo.

What version of Windows do you have? What all did you try to get it to recognize the tablet? Do you have access to another computer or operating system?
Sent from my Nexus 7

Related

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

Stuck at google logo, recovery mode doesn't work?

I seem to have messed up the process. I successfully unlocked and rooted my Nexus 7 but during wipe process using JROM flasher something didn't go right and now I'm stuck at the google logo screen forever. I can boot into fast recovery mode but that's about it. I can't do anything.
I've had this done before on my nexus phone but it seems I managed to f it up this time.
I thought I had a rom zip file copied on to the Nexus 7 but it doesn't show in the menu. Now I'm stuck at the logo screen not having access to any roms to install. How do I reset all of this to factory? I've already checked most of the threads regarding this and haven't been able to find a solution yet.
calavera-pw said:
I seem to have messed up the process. I successfully unlocked and rooted my Nexus 7 but during wipe process using JROM flasher something didn't go right and now I'm stuck at the google logo screen forever. I can boot into fast recovery mode but that's about it. I can't do anything.
I've had this done before on my nexus phone but it seems I managed to f it up this time.
I thought I had a rom zip file copied on to the Nexus 7 but it doesn't show in the menu. Now I'm stuck at the logo screen not having access to any roms to install. How do I reset all of this to factory? I've already checked most of the threads regarding this and haven't been able to find a solution yet.
Click to expand...
Click to collapse
before you do anything, use your recovery to see if the rom zip is located in /data/media/0/. if its there, flash it from that location.
Are you able to boot into recovery?
If yes, it could be as simple as plugging your tablet into the computer and mounting the usb, drag and drop the rom, and flash it without using a toolkit (only recovery). I'm not familiar with jrom flasher, but i will say the more variables there are, the more chance of a problem.
If no, you're best off running the stock factory image through your computer, found here: https://developers.google.com/android/nexus/images#nakasi. I had your problem at one point, and could not even boot into recovery. After trying to install cwm through adb (which failed), and a number of toolkits, the factory image was what brought my nexus back to life.
I remember reading that sometimes a wipe can delete your recovery as well as your system (and whatever else you have on your n7), although i dont know if that was ever fixed, as i got my tab replaced a month or two ago and havent rooted it again yet. There was some type of command or .zip or something that should be used to keep recovery after wipes. When i expirienced problems such as yours, it was also from a bad wipe from a toolkit. Using just the recovery afterwards, i never expirienced any issues, even without the recovery fix.
I would definitely try simms suggestion first if you can access recovery. If that fails, try one of the above processes.
PS, even if you can access recovery, if at this point you just want to go completely stock, the factory image will work regardless.
cheers
Thanks for the help guys, I've been struggling for the past 3~4 hours but I found a solution.
What I did was use JROMFlasher and upload a rom zip to the sdcard directly and go from there.
calavera-pw said:
Thanks for the help guys, I've been struggling for the past 3~4 hours but I found a solution.
What I did was use JROMFlasher and upload a rom zip to the sdcard directly and go from there.
Click to expand...
Click to collapse
Guys..I have the similar problem..I am not able to upload rom zip to sdcard using JROMFlasher..Also USB mounting is not working for me ..
Is there any other way to move ROM to sdcard?:crying:
appoos said:
Guys..I have the similar problem..I am not able to upload rom zip to sdcard using JROMFlasher..Also USB mounting is not working for me ..
Is there any other way to move ROM to sdcard?:crying:
Click to expand...
Click to collapse
ADB
Sent from my Galaxy Nexus
Pirateghost said:
ADB
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
This dint work in my windows 8
appoos said:
This dint work in my windows 8
Click to expand...
Click to collapse
You're holding it wrong. ADB works on my Win8 machine
Pirateghost said:
You're holding it wrong. ADB works on my Win8 machine
Click to expand...
Click to collapse
can you tell me the procedure..
appoos said:
can you tell me the procedure..
Click to expand...
Click to collapse
no.
in the other thread that YOU created, you were given links to follow and the instructions are already there. i dont hold hands
I could do it with ADB..thanks guys

[Q] Need help. OS was wiped using TWRP v2.3.2.1

hello all. I really need some help. I let my friend play around with my nexus 7 and he got into the TWRP and accidentally wiped everything off my nexus including the OS so now when i boot it just hangs on the google splash screen. I can get into fastboot mode and the team win bootloader screen but thats it. When i connect to my computer it is not recognized so i cant drag and drop a new boot image. I would just like to have my nexus back to factory unrooted bone stock
Please help me out. I'm new to the android scene and freaked out that i have a bricked device.
Thanks in advance!
1ll3st said:
hello all. I really need some help. I let my friend play around with my nexus 7 and he got into the TWRP and accidentally wiped everything off my nexus including the OS so now when i boot it just hangs on the google splash screen. I can get into fastboot mode and the team win bootloader screen but thats it. When i connect to my computer it is not recognized so i cant drag and drop a new boot image. I would just like to have my nexus back to factory unrooted bone stock
Please help me out. I'm new to the android scene and freaked out that i have a bricked device.
Thanks in advance!
Click to expand...
Click to collapse
First of all, stay calm! :good:
If you are able to reach fastboot mode, nothing of value is lost (beside your personal data). You can just follow this guide.
At the end, your Nexus will be as fine as before. And don't forget to threaten your friend not to do such things again if he doesn't understand how to repair it.
P.S.: You don't have to unlock (flashing step 2) and re-lock (flashing step 5) your Nexus as you may have unlocked it before (according to information about installed TWRP). And be sure to use the nakasig/Tilapia image for flashing.
1ll3st said:
hello all. I really need some help. I let my friend play around with my nexus 7 and he got into the TWRP and accidentally wiped everything off my nexus including the OS so now when i boot it just hangs on the google splash screen. I can get into fastboot mode and the team win bootloader screen but thats it. When i connect to my computer it is not recognized so i cant drag and drop a new boot image. I would just like to have my nexus back to factory unrooted bone stock
Please help me out. I'm new to the android scene and freaked out that i have a bricked device.
Thanks in advance!
Click to expand...
Click to collapse
is this guy still your friend?! why would anyone go into recovery on someone else's device? sounds like he C.I.A'd you lol
kistenschieber said:
First of all, stay calm! :good:
If you are able to reach fastboot mode, nothing of value is lost (beside your personal data). You can just follow this guide.
At the end, your Nexus will be as fine as before. And don't forget to threaten your friend not to do such things again if he doesn't understand how to repair it.
P.S.: You don't have to unlock (flashing step 2) and re-lock (flashing step 5) your Nexus as you may have unlocked it before (according to information about installed TWRP). And be sure to use the nakasig/Tilapia image for flashing.
Click to expand...
Click to collapse
Thanks I'll try that guide out tonight after work.
How it happened was I received the OTA update for 4.2.2, but didn't update. So when I let him use the tablet he thought he was being nice by updating for me and when the nexus reset it kicked into TWRP which he thought he f*ucked up and decided to "wipe" what he did.
Odp: [Q] Need help. OS was wiped using TWRP v2.3.2.1
1ll3st said:
Thanks I'll try that guide out tonight after work.
How it happened was I received the OTA update for 4.2.2, but didn't update. So when I let him use the tablet he thought he was being nice by updating for me and when the nexus reset it kicked into TWRP which he thought he f*ucked up and decided to "wipe" what he did.
Click to expand...
Click to collapse
That's the reason why I don't let anyone (even my best friends) to do anything on my phone without me looking what they are doing ATM. You should have done the same.
All your data you've had on your phone/tablet is permanently gone, all you have to do now is to restore your os from a backup (if you have made backup before) or flash other ROM and you are good to go
For the future knowledge - if you can access any recovery mode it's almost impossible that your phone is bricked. If you can only enter fastboot there is like one percent chance of this that your phone / tablet is bricked.
Sent from my R800i using xda premium
You could flash a recovery with fastboot < fastboot flash recovery recovery.img > (just necessary if TWRP got wiped during the update) and then push a ROM with adb.
This method wouldn't delete your SD card.
How do you know that he just didn't wipe system? It's possible that he didn't, so all you may need to do is flash the system image. If you have driver issues while in fastboot, I recommend the official Asus drivers.
Sent from my Nexus 7 using Tapatalk HD

Totally Bricked my G2! Please help!

Hi all,
As the title suggests, I have a bricked phone.
A little background, I rooted the phone then installed CWM. After that I installed CM10.2 but didn't care for it so decided to use Scotts stock rooted rom. To install that you have to have TWRP so installed that using Loki/adb. TWRP booted fine but when I went to do a wipe it hung at formatting cache. I rebooted and tried it again with the same results. I decided to try to install the rom anyway (dumb I know) and now all I have is a blank screen. No LG logo or anything. When I connect it to my pc windows recognizes like 10 different drives. I can't get it into download mode or recovery.
Am I screwed and need to see if ATT will replace it or is there a work around for this?
Thanks!
Wiping takes a long time. let it run and finish... could take 10 minutes or more.
how are you trying to get into recovery?
tdevaughn said:
Wiping takes a long time. let it run and finish... could take 10 minutes or more.
how are you trying to get into recovery?
Click to expand...
Click to collapse
Yeah I let it run for about 15 minutes which is considerably longer than it usually takes on any other phone I've done (many).
Tring to get to recovery using the power key method.
The thing is that it never gets to the LG logo. Nothing shows up on sceen at all but it is on.
fegar said:
Hi all,
As the title suggests, I have a bricked phone.
A little background, I rooted the phone then installed CWM. After that I installed CM10.2 but didn't care for it so decided to use Scotts stock rooted rom. To install that you have to have TWRP so installed that using Loki/adb. TWRP booted fine but when I went to do a wipe it hung at formatting cache. I rebooted and tried it again with the same results. I decided to try to install the rom anyway (dumb I know) and now all I have is a blank screen. No LG logo or anything. When I connect it to my pc windows recognizes like 10 different drives. I can't get it into download mode or recovery.
Am I screwed and need to see if ATT will replace it or is there a work around for this?
Thanks!
Click to expand...
Click to collapse
I'm in the same boat except I never installed a custom recovery or rom. Have you tried fastboot?
If it boots directly to a black screen (no lg splash), i'm sure ATT won't have any issues taking it back as they won't be able to see that it's rooted.
http://www.lg-phones.org/how-to-flash-unbrick-lg-g2-back-to-stock.html Here's a way to unbrick g2
Yeah I tried the flash tool too. No luck as I couldn't get into download or recovery.
I wound up taking it back to ATT and they gave me a new one no questions asked.
Sent from my LG-D800 using xda app-developers app

Need to copy over a nandroid backup but I can only boot to recovery!

Ok guys, I'm in deep trouble here. Kind of extremely desperate.
Please bare with my wall of text!
So I had just backed up my ROM, copied over the previous nandroid over to my computer and deleted it to make space for the new one. Made the new one, copied over the kernel I wanted to flash. Rebooted into recovery and simply flashed the kernel. That's where the screw-up started.
Wiped my cache and rebooted to a flashing purple and blue screen. Turned my phone off immediately and went to restore the backup I had just made. Not even midway through, I got "error while restoring /system". Nandroid is apparently no good?!
Now, I don't have anything on my SD to flash, not even a clean CM, another backup, nothing. I can only boot to recovery, if I try to reboot, I just get the google logo, then it goes off and back on, and so on. If I connect the phone to my PC, it obviously isn't detecting it.
I need a way to push or copy another nandroid backup or just a ROM over to my SD to flash something! I can't have bricked my phone!
Not too familiar with adb commands, haven't used them in ages!
I appreciate any help you can give me!!
EonHawk said:
Ok guys, I'm in deep trouble here. Kind of extremely desperate.
Please bare with my wall of text!
So I had just backed up my ROM, copied over the previous nandroid over to my computer and deleted it to make space for the new one. Made the new one, copied over the kernel I wanted to flash. Rebooted into recovery and simply flashed the kernel. That's where the screw-up started.
Wiped my cache and rebooted to a flashing purple and blue screen. Turned my phone off immediately and went to restore the backup I had just made. Not even midway through, I got "error while restoring /system". Nandroid is apparently no good?!
Now, I don't have anything on my SD to flash, not even a clean CM, another backup, nothing. I can only boot to recovery, if I try to reboot, I just get the google logo, then it goes off and back on, and so on. If I connect the phone to my PC, it obviously isn't detecting it.
I need a way to push or copy another nandroid backup or just a ROM over to my SD to flash something! I can't have bricked my phone!
Not too familiar with adb commands, haven't used them in ages!
I appreciate any help you can give me!!
Click to expand...
Click to collapse
Have you thought of using a toolkit like WugFresh NRT?
Sent from my Nexus 7 (2013)
---------- Post added at 06:05 AM ---------- Previous post was at 06:04 AM ----------
http://forum.xda-developers.com/showthread.php?t=1766475
Sent from my Nexus 7 (2013)
Berrydroidcafe said:
Have you thought of using a toolkit like WugFresh NRT?
Sent from my Nexus 7 (2013)
Click to expand...
Click to collapse
If you're talking about this one, reading the thread right now. About to download the windows version and try to flash stock and unroot, then root again.
Do you recommend anything else? I didn't want to lose root.
EonHawk said:
If you're talking about this one, reading the thread right now. About to download the windows version and try to flash stock and unroot, then root again.
Do you recommend anything else? I didn't want to lose root.
Click to expand...
Click to collapse
As far as losing root, you shouldn't lose it, and there's no reason to believe that you might have already lost it, but if you are planning on flashing stock and unrooting then it wouldn't matter anyway.
Sent from my Nexus 7 (2013)
Berrydroidcafe said:
As far as losing root, you shouldn't lose it, and there's no reason to believe that you might have already lost it, but if you are planning on flashing stock and unrooting then it wouldn't matter anyway.
Sent from my Nexus 7 (2013)
Click to expand...
Click to collapse
I'm stuck!!!
I tried flashing stock and unrooting, but I had issues with what it said could be either my drives not being installed, or my USB Debugging not being enabled. I don't think I ever enabled USB debugging after this last time I flashed CM. I tried going through full driver installation, but I still hit the same wall with USB debugging not being enabled!!
What should/can I do?
Boot into recovery and connect your USB cable on it. Download an ADB standalone and place the files you want to transfer there, open it and type:
adb push (local of the rom/kernel/wharever) (path to sd/internal storage). it would be something like that
adb push rom.zip /sdcard/0/
this will transfer the file to the root of the internal storage.
EonHawk said:
I'm stuck!!!
I tried flashing stock and unrooting, but I had issues with what it said could be either my drives not being installed, or my USB Debugging not being enabled. I don't think I ever enabled USB debugging after this last time I flashed CM. I tried going through full driver installation, but I still hit the same wall with USB debugging not being enabled!!
What should/can I do?
Click to expand...
Click to collapse
Did you go through the steps in the Full Driver Configuration Guide?
Sent from my Nexus 7 (2013)
sky0165 said:
Boot into recovery and connect your USB cable on it. Download an ADB standalone and place the files you want to transfer there, open it and type:
adb push (local of the rom/kernel/wharever) (path to sd/internal storage). it would be something like that
adb push rom.zip /sdcard/0/
this will transfer the file to the root of the internal storage.
Click to expand...
Click to collapse
Tried sideloading, sideloaded CM over. Seemed to work, but when I rebooted, got through to the CM logo and got stuck in a bootloop.
Rebooted into recovery and wiped device again.
Berrydroidcafe said:
Did you go through the steps in the Full Driver Configuration Guide?
Sent from my Nexus 7 (2013)
Click to expand...
Click to collapse
I tried, but I got stuck because I couldn't do Step 1 without having USB Debugging enabled!
EonHawk said:
Tried sideloading, sideloaded CM over. Seemed to work, but when I rebooted, got through to the CM logo and got stuck in a bootloop.
Rebooted into recovery and wiped device again.
Click to expand...
Click to collapse
Just a thought, have you considered using TWRP? Are you sure it was actually a bootloop and not a boot that is just taking a little longer than usual to finish?
Sent from my Nexus 7 (2013)
Berrydroidcafe said:
Just a thought, have you considered using TWRP? Are you sure it was actually a bootloop and not a boot that is just taking a little longer than usual to finish?
Sent from my Nexus 7 (2013)
Click to expand...
Click to collapse
I waited for over 5 minutes, turned it off, and tried booting it up. After another 3 minutes of nothing, I gave up.
Tried sideloading an old backup but wasn't able to sideload anymore..
Currently trying to do the driver things in the toolkit..
I may have screwed this up even more.
While doing Step 1, I again couldn't do the whole USB Debugging enable/disable, so I just went and did everything else that I could. Step 2 installed, Step 3 couldn't recognize my phone, just went back to Google bootloop.
I don't think I can even try sideloading stuff anymore.
I may have screwed this up even more.
While doing Step 1, I again couldn't do the whole USB Debugging enable/disable, so I just went and did everything else that I could. Step 2 installed, Step 3 couldn't recognize my phone, just went back to Google bootloop.
I don't think I can even try sideloading stuff anymore.
EDIT:
Ok, sideloading CM again. Currently at 70%. I'll keep you guys posted.
Sorry to post 4 times in a row, but still stuck in the CM bootloop.
Is there anything better I should try sideloading? Maybe a factory image?
Something that would completely restore everything?
Sorry to post 5 (FIVE) times in a row!
FIXED IT! **** YES! I was running out of time too, have to wake up in four hours for work, hahahah.
I really don't know what happened this time. Tried running the Flash Stock + Unroot again, and it went through!
Going to enjoy stock for a while, this scared me way more than my previous adventures with rooting have, and I'm not entirely (but mostly) new to this!
Thank you so much for your help man, couldn't have done it without some support. Really feel indebt to the guy that made the toolkit, though. Thanks all around!
EonHawk said:
Sorry to post 5 (FIVE) times in a row!
FIXED IT! **** YES! I was running out of time too, have to wake up in four hours for work, hahahah.
I really don't know what happened this time. Tried running the Flash Stock + Unroot again, and it went through!
Going to enjoy stock for a while, this scared me way more than my previous adventures with rooting have, and I'm not entirely (but mostly) new to this!
Thank you so much for your help man, couldn't have done it without some support. Really feel indebt to the guy that made the toolkit, though. Thanks all around!
Click to expand...
Click to collapse
Great! :thumbup:
Sent from my Nexus 7 (2013)

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