[Q] Can't turn on Nexus 7 (2012) - Nexus 7 Q&A, Help & Troubleshooting

Hi everybody, I have troubleshoot like this:
Nexus 7 won't turn on. It is being every time when I power off my device:
Device is recognized in APX mode
No problem with charger or usb cable( 2-3 cables and chargers were tried)
Device was with CM11 then Stock Android 4.4.2 then I flashed Ubuntu 13.04 desktop version, but in all of this cases it was.
When I use some third party program for rebooting or recovery, no problem occur.
Can't boot to bootloader and i had charger it like Google says
40+ seconds power on button pressed but no action.
And suddenly it turns on and over a time when it turns of story begins
What can I do with it???
PS: It is booting to Ubuntu with no problems when turning on and I have no NVFlash blobs, so I can't flash with it.
THANK ALL OF YOU !

If it only boots into APX mode, then something is really gone wrong. (corrupted bootloader,damaged emmc,etc.)
Without proper blobs you can't do much about it, try to send it to Google/Asus.

Related

Is my Nexus 4 bricked or irreperably broken?

Hello people,
I have a German Nexus 4 and it gets stuck in bootloop whenever I turn the power on.
I've had issues with the phone since the last few months - i.e. random reboots, random program crashes.
But recently I tried to root it in order to install the Android L developer preview. It was during the booting process, when my Nexus crashed and it has been unable to boot ever since.
When I push all three buttons (power + 2 volume rocker buttons) simultaneously, I get the fastboot screen.
Choosing the following options has these effects:
Start --> phone tries to boot but gets stuck in bootloop forever and ever
Restart bootloader --> restarts the fastboot screen
Recovery mode --> phone shows the robot with an opened belly and a red warning sign (see photograph)*
Power Off --> turns the power off
Also, it is NOT detected or recognized by my Macbook when I connect the Nexus via USB cable. So it's impossible for me to access the phone via my Macbook.
*This is the screen shown when I try to go into Recovery mode in fastboot:
[can't upload outside link to image]
So this leaves me with no options as I never get further than the 4 turning circles forever and ever.
Is my Nexus 4 broken or is there still a chance to unbrick it? (I have a MacBook, so Windows programs won't work for me)
Of course it's not possible to recognize it when OS is not running.
Download WugFresh toolkit, ADB drivers (Universal) and the factory image. Enter fastboot, connect USB and flash the image
Your phone is not hardbricked, because it boots into the bootloader.
It might be recovered if you can access it with fastboot.
Try uninstalling all related drivers and install the Naked Universal Driver.
Thanks for your replies!
Unfortunately, the programs you mentionned don't work on my Mac (they seem to be Windows-only).
Also, how can I install stuff on my Nexus? Since it is not recognized by my MacBook, I can't load any files onto my Nexus.
And since any command on the fastboot screen only leads to the phone powered off, restart of the fastboot screen or the mentionned bootloop, I cannot perform any actions on the Nexus ...
Go to a friend with Windows.
Problem solved!
Somehow after the 1000th bootloop I finally reached the screen where I could wipe the phone.
And then it finally booted! Now all the data are lost and it's like a new phone, but at least it's working again!
How long was the boot loop? Was it the new boot animation from L?
Because when you flash L, the first boot up may take up to 15 minutes, leading you into thinking it's a boot loop.

[Q] Nexus 7 (2012) black screen and more.

Where to begin, well I'll start with the most pressing issue. While flashing the oldbootloader it was disconnected from the USB (USB cable needs to be held a certain way for it to conect to the tablet) and froze on the bootloader screen so I held both the power and volume down buttons to reset it. The problem is that now I'm stuck with a black screen however when I plug the tablet into my PC it makes the noise to notify my that there is a device plugged into it but it doesn't recognize the nexus. I was restoring the tablet because it switched of yesterday for no reason then began to bootloop when I turned it back on so I went into cwm recovery and got the "E:Can't mount" error. That is what led me to restore the tablet and how I got here, with a black screen nexus that connects to PC but isn't recognized an can not be booted into recovery mode. Can anyone help or is this hopeless?
Also the device was running 4.4.4 kitkay and was rooted before all of this.

[HELP] Bootloader is working but Recovery dont. :(

Hi guys,
My nexus 10 suffers from a weird power issue. Because when i turn it on it shows the google splash screen, but after few seconds it flickers and will turn off. I turn it on again, then the same problem occurs for the Nth time. Then if I try to boot into custom recovery (TWRP) the same flickering and shut down happens. Both I tried with and without the charger connected to the tablet..
But when I try to boot into bootloader, bootloader mode is normal, the screen does not flicket and stays on (maybe until the battery depletes its juice).
Does anyone also experienced this? My Nexus 10 is running on Android 5.0.1. Can someone help me to revive my tablet. So many precious pictures of my baby is saved on the internal memory of my Nexus 10.
How can i back-up those precious photos and other files from the tablet to the pc via bootloader mode? I supposed, It might make my tablet back to normal function again if i reformat it.
Help me please.
Thank you guys!

ZTE Blade A452 Loop at rebooting no recovery no fastboot. HELP

Hello, I have rooted with kingroot topic titled phone. Last time decided to reboot it because it has become slower. So I pressed power button and rebooted. Phone stuck after this on logo (in Poland it's gsm dialer(?) Plus gsm logo and black screen with again and again rebooting). Over month working on phone after root without problem. Now with combination of vol+/- and pwr button I still can't get into rec options, chargin to 100% battery didn't help. After usb connection I can only hear connection and disconnection sound in windows because it keep on rebooting. I can't take battery out it's non-removable. Worse, load out - same no effect and it's 4000mah battery so even on rebooting it's over day and night if not more to load out it. In windows it's visible as MT65xx preload driver Vcom but as I know it's 6735P based mediatek. ADB and else like getting through fastboot isn't possible. Any Ideas please? Thanks, if anyone will be able to help...even for trying I will be thankfull.

Nexus 7 2012 wifi appears dead.

My Nexus 7 2012 Wifi tablet no longer boots.
About 8 years ago I installed a boot loader, could have been CWM (Clock work Mod) all hazy now. The tablet booted once or twice with lots of text but got stuck in it's process and I switched off after a long wait. When I tried to switch back on it would not boot. Held power key down for over 10 second, and same with power key and volume key held down. Nothing.
Would it still be possible to fix this via pc windows to flash a boot or does this mean it's bricked.
If it can be flashed what is software to use these days? I'm guessing it's still nexus root toolkit, does this work with Windows 10?
Also want to put a stock Rom back on. Is version Nakasi 4.4.4 best to use for speed and stability.
hello brother, connect your tablet to the charger for atleast 30 minutes. then try to boot up the tablet by holding power button for 10 to 30 seconds. try to boot with charging and without charging. it must show atleast battery charging status. if the tablet shows up, reply me.

Categories

Resources