No idea what to do - Nexus 7 Q&A, Help & Troubleshooting

So,
I have Nexus 7 16gb (grouper) and the problem is that it can not recognize the usb(as I guess)
It doesn't charge when powered on. I should turn it off and connect the charger and i charges .
The PC doesn't recognize it . (both Linux Ubuntu 12.10(with necessary rules) and Windows 7)
OTG doesn't work.
The adb does not recognize it.
When in bootloader adb doesn't recognize it. (so i can't flash anything)
I am on stock 4.2.1 JOP40D with CWM and M-KERNEL a32.
Tried wiping everything(leaved only system) and the same result.
It happened after I charged it with car charger.
BTW in bootloader menu it shows:
Baseband Version : N/A
Help me please!

So it does charge when off?
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VonEsch said:
So it does charge when off?
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Yes.

Erachter said:
Yes.
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Hmm. There's an app on play store flash image GUI. Not sure if you can lock boot loader with that, but you will need to either stock and relock or get it to not charge at all. Then you can RMA the thing
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Thanks!
I thought about flashing again bootloader via CWM
Is that a good idea?
What RMA means?

If happened to me I would try a ROM with stock kernel first

ADB is only for Android OS... You need to use fastboot instead while in bootloader.
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RMA is sending it in to get fixed
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---------- Post added at 12:03 AM ---------- Previous post was at 12:02 AM ----------
korockinout13 said:
ADB is only for Android OS... You need to use fastboot instead while in bootloader.
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If adb doesn't see it fast boot probably won't either
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korockinout13 said:
ADB is only for Android OS... You need to use fastboot instead while in bootloader.
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I use command adb devices
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VonEsch said:
RMA is sending it in to get fixed
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Not a solution for me in my country
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The interesting thing I discovered now is that I can use OTG with stick mount app
And even I can charge my s3 with otg but I get a reboot
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Did you manually install the drivers? You need to.
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Related

USB mount in CWM

How can I mount USB storage to my computer in CWM(recovery) or bootloader?
you can't
but you can still push files using jromflasher
n7of9 said:
you can't
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Click to collapse
That's one of the reasons I moved to TWRP.
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AndDiSa said:
That's one of the reasons I moved to TWRP.
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Can you do it in TWRP then?
Sent from my Nexus 7
Yes, works linke a charm. All my backups are now directly written to an USB-stick and the amount of free internal memory increased by almost 4 GB
Edit: upps, I think I understood you wrongly. I was thinking on USB-stick on OTG, not on MTP-mounting. That I didn't check up to now.
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Oh okay. But still its a got piece of information thanks!
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this is custom recovery ?

http://i.ytimg.com/vi/u62sGk0Ypcg/0.jpg custom recovery
?
thank you.
ishay_maimon said:
http://i.ytimg.com/vi/u62sGk0Ypcg/0.jpg custom recovery
?
thank you.
Click to expand...
Click to collapse
Yes, and it's called Team Win Recovery Project or twrp for short.
So why I can't to install it:
http://forum.xda-developers.com/showthread.php?t=1989188
?
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are you on stock 4.1.2???
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Yes
Edit:
I can to install cwm on this ?
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Use toolkit
darkmatthew said:
Use toolkit
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For install jelly bean 4.2 ?
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hmm what error does the recovery give you?
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ngoralph said:
hmm what error does the recovery give you?
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" Install is failed "
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Have you tampered with your stock rom, eg. deleted or changed some of the original apps? Im just guessing there is a reason you got a custom recovery in the first place?
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Someone can to give me cwm for download ?
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Link for nexus 7 4.2.1 stock image?

I upgraded to 4.2.2 today and realized I can't root it now I been trying all day so I give up where can I get the 4.2.1 image cuz then I can root in like 2 min
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http://forum.xda-developers.com/showthread.php?t=1744040
http://forum.xda-developers.com/showthread.php?t=1736578
http://forum.xda-developers.com/showthread.php?t=2070419
Start reading and stop making new threads
This is different I wanna go back to 4.2.1
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you didnt even read the damn posts.....stop
just stop
What's CD to platformtools?
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Change Directory
What's sudo in Linux?
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Class_of_punk26 said:
What's sudo in Linux?
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Click to expand...
Click to collapse
http://bit.ly/udjOul
seriously dude, you need to do a little legwork yourself. this is quickly getting out of hand
I'll just skip that step sorry
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OK I searched everywhere about this and still can't find a cure I even tried putting it in the c drive this is the only last step I need to root it but it says cannot path-to-img/cwm-grouper-img why?
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Class_of_punk26 said:
OK I searched everywhere about this and still can't find a cure I even tried putting it in the c drive this is the only last step I need to root it but it says cannot path-to-img/cwm-grouper-img why?
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what is the EXACT command you are putting in?
this really isnt that hard.
Fastboot flash recovery path-to-img/CWM-grouper-recovery.img
I also tried moving the file to the c: drive and put it as fastboot flash recovery c:/CWM-grouper-recovery.IMG I'm going by the guide on unlock and root a nexus 7 thread
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If your using windows use a toolkit. By the way, before you ask a question on here search online all you can and use this as a last resort.
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I can't use a toolkit none supports android 4.2.2
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path-to-img/cwm-grouper-recovery.img?
literally? thats your command you are using?
its not something like C:\rootkit\cwm-group-recovery.img?
spitfire2425 said:
If your using windows use a toolkit. By the way, before you ask a question on here search online all you can and use this as a last resort.
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Class_of_punk26 said:
I can't use a toolkit none supports android 4.2.2
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If you have to rely on a toolkit, you shouldnt be modding ANY device.
Then guide doesn't say that tho I'm using the [[REF]] all in one nexus 7 jelly bean android development thread then go down to guides and tools click on unlock and root a nexus 7 I'm using that guide
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Class_of_punk26 said:
Then guide doesn't say that tho I'm using the [[REF]] all in one nexus 7 jelly bean android development thread then go down to guides and tools click on unlock and root a nexus 7 I'm using that guide
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really?
path-to-img/CWM-grouper-recovery.img really doesnt make you wonder where that file is?
put the recovery.img file in the same folder as your fastboot.exe
run the command
fastboot flash recovery NAMEOFRECOVERY.img <<this should be the ACTUAL name of the recovery filled in by you, whatever it is named.
ALSO
remember earlier when i told you to update the adb and fastboot files? (SDK) did you actually do that?
this stuff isnt rocket science, and if you dont have basic computer knowledge, you shouldnt be doing ANY modding of your device....this is ridiculous
Pirateghost said:
really?
path-to-img/CWM-grouper-recovery.img really doesnt make you wonder where that file is?
put the recovery.img file in the same folder as your fastboot.exe
run the command
fastboot flash recovery NAMEOFRECOVERY.img <<this should be the ACTUAL name of the recovery filled in by you, whatever it is named.
ALSO
remember earlier when i told you to update the adb and fastboot files? (SDK) did you actually do that?
this stuff isnt rocket science, and if you dont have basic computer knowledge, you shouldnt be doing ANY modding of your device....this is ridiculous
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same thing and yeah i updated everything just in case
Class_of_punk26 said:
same thing and yeah i updated everything just in case
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and ttbh i never had problems with rooting my phones this is the only device i had problems with

Can I use Franco on 4.3?

I have a nooby question but, can I use Franco kernel with 4.3 stock? Sorry if this is stupid :x
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Tanmaynarang said:
I have a nooby question but, can I use Franco kernel with 4.3 stock? Sorry if this is stupid :x
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?
Nexus 4+ Franco + LTE
BigDig said:
?
Nexus 4+ Franco + LTE
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Alright, thanks
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Oh and also, can I dirty flash CM10.2 over stock 4.3?
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Tanmaynarang said:
Oh and also, can I dirty flash CM10.2 over stock 4.3?
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Full wipe is strongly recommended!
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Okay, thanks
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You can't use 4.2.2 releases from Franco in 4.3 but he post #170 and #171 for 4.3
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llsantiago said:
You can't use 4.2.2 releases from Franco in 4.3 but he post #170 and #171 for 4.3
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Where could I find these releases ? And how could I install its ? (sorry but I always only use zip file)
Thanks.
Raiden350 said:
Where could I find these releases ? And how could I install its ? (sorry but I always only use zip file)
Thanks.
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Do a search in the thread for 'r171' and you should find it. If it's provided in .img , you can use fastboot to flash it. (fastboot flash boot boot.img)
Another method is to take any other Franco.kernel zip and replace the boot.img inside using an archive manager on your pc. Then just flash the modified zip in recovery.
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Okay, thanks! Any reason why we need to use fastboot rather than TWRP or something?
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Tanmaynarang said:
Okay, thanks! Any reason why we need to use fastboot rather than TWRP or something?
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No. It's just a different method in flashing a kernel.
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Tanmaynarang said:
Okay, thanks! Any reason why we need to use fastboot rather than TWRP or something?
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If its an img file you need to use fastboot. Twrp will only flash files that are packaged in the correct manner.

Root??

I just purchased a nexus 4 Yesterday from t mobile and I updated to 4.3 right away. I was wondering is this device worth ROOTING and flashing a custom ROM ..
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Yes, of course. That's part of the fun when having a Nexus device
Mercado_Negro said:
Yes, of course. That's part of the fun when having a Nexus device
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I always liked rooting, any ROM suggestions?
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kdog1202 said:
I always liked rooting, any ROM suggestions?
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In 4.2.2 I used AOKP. I think they're working on 4.3 now (hopefully it will be out soon).
Cyanogemod is pretty awesome and simple too.
Does unlocking the bootloader make u loose all data?
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kdog1202 said:
Does unlocking the bootloader make u loose all data?
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Yes.
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kdog1202 said:
Does unlocking the bootloader make u loose all data?
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Not if you don't reboot after you unlock. Flash a custom recovery right after you unlock wipe caches then reboot = no data loss
From my BLACKED OUT N4
spaceman860 said:
Not if you don't reboot after you unlock. Flash a custom recovery right after you unlock wipe caches then reboot = no data loss
From my BLACKED OUT N4
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Ok so I'm downloading the tool kit and am gonna root my phone. I installed on my PC toolkit 3.0 is this correct to root 4.3 android?
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kdog1202 said:
Ok so I'm downloading the tool kit and am gonna root my phone. I installed on my PC toolkit 3.0 is this correct to root 4.3 android?
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I don't recommend toolkits they aren't needed for nexus devices. Follow this guide http://forum.xda-developers.com/showthread.php?t=2266654
You will learn in the process
From my BLACKED OUT N4
spaceman860 said:
I don't recommend toolkits they aren't needed for nexus devices. Follow this guide http://forum.xda-developers.com/showthread.php?t=2266654
You will learn in the process
From my BLACKED OUT N4
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Alright thank you for ur advice. I will do soon so I don't have much data to loose lol
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I am attempting to unlock my bootloader using manual way. And I type a command in my terminal (Ubuntu) with adb installed correctly but comes up with "????????? Not proper permissions or something
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Check Nexus 4 toolkit and Paranoid Android
kdog1202 said:
I just purchased a nexus 4 Yesterday from t mobile and I updated to 4.3 right away. I was wondering is this device worth ROOTING and flashing a custom ROM ..
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Click to expand...
Click to collapse
If you are looking for some performance enhancements then you just need a root and CWM(recovery) installed for flashing kernels, check Nexus 4 toolkit. Custom ROMS are more for aesthetic enhancements, and the most worked ROM on the area of aesthetic changes is Paranoid Android ROM, they have regular builds for Nexus 4. So check them out, Enjoy your N4 ! .
kdog1202 said:
I am attempting to unlock my bootloader using manual way. And I type a command in my terminal (Ubuntu) with adb installed correctly but comes up with "????????? Not proper permissions or something
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Click to collapse
You have to use fastboot not adb
From my BLACKED OUT N4
Oh.. OK
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