Database Users

[Q] Nexus 7 Won't Boot

Hi, basically i recently flashed the miui rom via rom manager on my nexus 7 and once it had flashed the rom it went to restart and it won't go past the mi boot screen. I also can't go into recovery via fastboot mode as it just goes the google screen.
What Should I do?

Djamel.K said:
Hi, basically i recently flashed the miui rom via rom manager on my nexus 7 and once it had flashed the rom it went to restart and it won't go past the mi boot screen. I also can't go into recovery via fastboot mode as it just goes the google screen.
What Should I do?
Click to expand...
Click to collapse
I think you might still be able to re-install the stock ROM.
Go to this thread and scroll down to "Q. I want to send my phone back so I need to flash a stock rom and relock the bootloader". You should probably read the whole post in case I missed something.
Good luck

I don't know if this will help but from what I've read you can't get into recovery through fastboot unless you're plugged into a pc. What you can do is plug your tablet into the pc and then hold the volume up/down buttons as well as the power button. Then just select recovery and you should be able to get into it.
I'm not an expert on this but it has happened to me where I would get stuck at the google screen so I did a lot of reading about it. From what I understand, this is an issue with the bootloader. It was designed that way and this problem will continue as until google decides to fix it.
I hope this helps

bacon_n_icecream said:
I don't know if this will help but from what I've read you can't get into recovery through fastboot unless you're plugged into a pc. What you can do is plug your tablet into the pc and then hold the volume up/down buttons as well as the power button. Then just select recovery and you should be able to get into it.
I'm not an expert on this but it has happened to me where I would get stuck at the google screen so I did a lot of reading about it. From what I understand, this is an issue with the bootloader. It was designed that way and this problem will continue as until google decides to fix it.
I hope this helps
Click to expand...
Click to collapse
It won't let me select recovery and when it did earlier it didn't work

lg mobile support tool stuck at 49%

i tried going back to stock firmware using the method in general section but i always seem to get an error at 49%. can someone explain how to get passed this.
i using the t-mobile d801.
also my recovery seemed to have gotten erased because i cant boot into twrp anymore.

LG G2 Stuck @ 49%
El Killer said:
i tried going back to stock firmware using the method in general section but i always seem to get an error at 49%. can someone explain how to get passed this.
i using the t-mobile d801.
also my recovery seemed to have gotten erased because i cant boot into twrp anymore.
Click to expand...
Click to collapse
HEY! I'm on the d801 as well and I've been where you're at a number of times, unfortunately. But I've always gotten out. Here's the conclusion I've reached. Trying to flash directly back to stock without wiping all the partitions first is what makes the RDTool get stuck. It's like the phone runs out of memory and can't host a full Gig+ of data since your last ROM is in the way. Sorry if I'm wrong but I'm only assuming you didn't wipe everything except the Internal storage. The good thing every time this has happened to me is that your recovery partition should be intact. Mine always is, and we're on the same variant. Another thing, booting back into recovery is not impossible. It's all in the timing it takes from the first time you see the LG logo while holding volume - and the power button, but don't let go. What worked for me was to let the phone cycle between off and boot power states twice until the phone is completely off again. You may even notice the LED indicator flash red. Release your keys if the phone stays off and immediately hold the combo down again until the phone tries to boot again just don't let go of the buttons. Once it powers down again, leave the phone alone for a few minutes. Come back and this time get ready to boot into recovery. The combo button press will initiate boot but don't let go until the next time you see the LG logo flash, then quickly release and depress the vol down power up combo and hold. May take a minute longer than usual but the reset menu should pop up thereafter. Tap power 2 more times and you should back into recovery. It's worked every time for me. Let me know if you're good and whether this helped!
Good Luck,
tinydynamite00

try with x86
El Killer said:
i tried going back to stock firmware using the method in general section but i always seem to get an error at 49%. can someone explain how to get passed this.
i using the t-mobile d801.
also my recovery seemed to have gotten erased because i cant boot into twrp anymore.
Click to expand...
Click to collapse
i had exact same issue that progress stucked on 49%. if you are using 64bit OS, try to flash it with 32bit(x86) OS
good luck

tinydynamite00 said:
HEY! I'm on the d801 as well and I've been where you're at a number of times, unfortunately. But I've always gotten out. Here's the conclusion I've reached. Trying to flash directly back to stock without wiping all the partitions first is what makes the RDTool get stuck. It's like the phone runs out of memory and can't host a full Gig+ of data since your last ROM is in the way. Sorry if I'm wrong but I'm only assuming you didn't wipe everything except the Internal storage. The good thing every time this has happened to me is that your recovery partition should be intact. Mine always is, and we're on the same variant. Another thing, booting back into recovery is not impossible. It's all in the timing it takes from the first time you see the LG logo while holding volume - and the power button, but don't let go. What worked for me was to let the phone cycle between off and boot power states twice until the phone is completely off again. You may even notice the LED indicator flash red. Release your keys if the phone stays off and immediately hold the combo down again until the phone tries to boot again just don't let go of the buttons. Once it powers down again, leave the phone alone for a few minutes. Come back and this time get ready to boot into recovery. The combo button press will initiate boot but don't let go until the next time you see the LG logo flash, then quickly release and depress the vol down power up combo and hold. May take a minute longer than usual but the reset menu should pop up thereafter. Tap power 2 more times and you should back into recovery. It's worked every time for me. Let me know if you're good and whether this helped!
Good Luck,
tinydynamite00
Click to expand...
Click to collapse
still no luck

El Killer said:
still no luck
Click to expand...
Click to collapse
OK. So tell me, what ROM were you on, which recovery version and name are you using, why were you flashing back to stock, i.e. were you having problems, what kind. Explain as much as you can in detail. Need to retrace your exact steps to best get you fixed up!
tinydynamite00

tinydynamite00 said:
OK. So tell me, what ROM were you on, which recovery version and name are you using, why were you flashing back to stock, i.e. were you having problems, what kind. Explain as much as you can in detail. Need to retrace your exact steps to best get you fixed up!
tinydynamite00
Click to expand...
Click to collapse
i was using pa4.0 and wanted to go back to stock because i preffered the lg ui. i had twrp 2.6.3.5 i restored my back up of stock but when i rebooted i got into fastboot mode.
twrp wasnt working after i had restored my back up go straight to fastboot was stuck in fastboot until i found a thread explaining how to get out of fastboot and restore download mode.
managed to get download mode working and tried to flash stock with mobile support tool and got the 49 percent error,
my phone never really displayed any progress just says download mode with a white box and blue dots

El Killer said:
i was using pa4.0 and wanted to go back to stock because i preffered the lg ui. i had twrp 2.6.3.5 i restored my back up of stock but when i rebooted i got into fastboot mode.
twrp wasnt working after i had restored my back up go straight to fastboot was stuck in fastboot until i found a thread explaining how to get out of fastboot and restore download mode.
managed to get download mode working and tried to flash stock with mobile support tool and got the 49 percent error,
my phone never really displayed any progress just says download mode with a white box and blue dots
Click to expand...
Click to collapse
K, now if you're only seeing the blue dots when you attach by USB your phone to PC, then you're not fully in DL mode to process the kdz. You should see a white wheel in the center of the screen when you connect and a viewing mirror near the base of your phone with ROOTED in red directly below that. And you're sure your PC is detecting your phone? You've the drivers installed? Because when RDT tells you to run the tool, you'll see some binary code in the viewing window I spoke of, the white wheel will turn and below it will be shown the COM port to which you're connected and a solid thin red bar will begin to fill a space in the viewer showing you the progress.
Also, be sure when attempting the first steps I gave you to boot into recovery that you are not USB connected. It won't work.
And, try to remember if your phone was well enough charged, should have been at least 80% full. It happened to me once that I couldn't boot recovery and my phone would go to fastboot like yours until I left it alone to charge and then I repeated the stepsvi laid out to get back into recovery. This part is paramount!

Please READ CAREFULLY
I used to be in your same situation. I thought I had bricked my phone for good. I finally figured it out. Here is my solution from my Thread.
Esteef said:
Okay, after 12+ hours of trying every method possible on XDA I finally resolved my issue. I will update the first post just incase any others care or fall into the same dilemma I was in.
The LG Mobile Support tool would not download the firmware and it would NOT ask me for my IMEI to download it either.
So my solution....
***
Installed LG Mobile Support Tool then Installed the LG Drivers. (FROM HERE http://forum.xda-developers.com/showthread.php?t=2471370
BEFORE I connected the phone to the computer. I opened the LG Mobile support tool clicked (Options on the top right).
When the dropped down opened, I clicked the (Upgrade Recovery) option. THEN, is when the prompt opened to ask me what my IMEI is.
Before I entered my IMEI, I connected my phone to the computer in download mode, then proceeded to enter my IMEI and hit OK.
This is when the LG Mobile Support tool SUCCESSFULLY downloaded the latest official LG firmware and installed it.
*** BE AWARE, with the phone connected to the PC, the prompt NEVER appeared to enter my IMEI.
*** But with the phone disconnected, the prompt came up every time. This might be the trick for some people.
*** with the IMEI prompt opened, I then connected the phone , entered the IMEI, then hit OK. BOOM HERPES....
Well I'll polish this up more later. I hope this works for every LG G2 Variant and not just the T-Mobile one (D801)
-Esteef
Click to expand...
Click to collapse
THIS WILL WIPE YOUR PHONE COMPLETELY...

tinydynamite00 said:
K, now if you're only seeing the blue dots when you attach by USB your phone to PC, then you're not fully in DL mode to process the kdz. You should see a white wheel in the center of the screen when you connect and a viewing mirror near the base of your phone with ROOTED in red directly below that. And you're sure your PC is detecting your phone? You've the drivers installed? Because when RDT tells you to run the tool, you'll see some binary code in the viewing window I spoke of, the white wheel will turn and below it will be shown the COM port to which you're connected and a solid thin red bar will begin to fill a space in the viewer showing you the progress.
Also, be sure when attempting the first steps I gave you to boot into recovery that you are not USB connected. It won't work.
And, try to remember if your phone was well enough charged, should have been at least 80% full. It happened to me once that I couldn't boot recovery and my phone would go to fastboot like yours until I left it alone to charge and then I repeated the stepsvi laid out to get back into recovery. This part is paramount!
Click to expand...
Click to collapse
yeah my computer does recognize my phone. but i cant run adb or fastboot anymore. all drivers are installed also.
i never got the while wheel or any progress indicator. so i guees im not really in download mode.
i let my phone charge for a few hours and try your method again and let you know what happens

El Killer said:
yeah my computer does recognize my phone. but i cant run adb or fastboot anymore. all drivers are installed also.
i never got the while wheel or any progress indicator. so i guees im not really in download mode.
i let my phone charge for a few hours and try your method again and let you know what happens
Click to expand...
Click to collapse
Sounds good. A full charge can make all the difference. I learnt the hard way! One or more of us will be along should you need further help.
I do hope you get this sorted! I've come back from the brink too many times to not believe you won't.
tinydynamite00

Do as esteef recommended..
Sent from my LG-D802 using XDA Premium 4 mobile app

Falaco147 said:
Do as esteef recommended..
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
im trying but i get a battery to low error. i guess i need to charge it longer

i owe you all a million thanks for helping me unbrick my phone. i really thought i was left with a paper weight and then i tried esteefs method again i really owe you guys thank you for the support

El Killer said:
i owe you all a million thanks for helping me unbrick my phone. i really thought i was left with a paper weight and then i tried esteefs method again i really owe you guys thank you for the support
Click to expand...
Click to collapse
You are welcome... The first time I did it too my battery was at 28% and I panicked since I got the low battery error.
I could of sworn that my phone officially became a paper weight. My heart dropped.
I'm glad you are up and running with the rest of us!
-Esteef

1732359994
hey !
I have the same problem, but... I can't acces to the recovery :/ i tried to install CWM (with Freegee) over Team win recovery and... boot loop :
The rom 4.2.2 flex was gone, no boot animation
-When i pres volum down + power, i have the reset menu, but after that, there is a black screen and it's written at the top left "started usb_start Fastboot Mode ()"
Please, i need your help, i'm so afraid !!
Thx !

Esteef said:
I used to be in your same situation. I thought I had bricked my phone for good. I finally figured it out. Here is my solution from my Thread.
THIS WILL WIPE YOUR PHONE COMPLETELY...
Click to expand...
Click to collapse
I know this thread is a bit old, but it saved my butt. Your method worked perfectly. Thank you for this post.

My LG F460 was bricked (error 570), only download mode was working. Esteef method works fine even my pictures and programs was saved. Thanks!

[Q] Brinked nexus 7 APX mode (only)

Hi guys yesterday my nexus freeze in gmail.. so i turn it down by pressing and hold te power button
then the tablet freeze in the Google LOGO
after taht i try to ge into Recovery mode,, it freeze aswell then i just reboot it on bootloader adn i leave it thre for about 1 hour charging
the i try to go to boot loader to fhasl stok rom..
but..!! it wont work.. never turns on..
and it shows in my pc as APX mode
no more than that y tri to start it in bootloader but i just cant with every method i find in internet even i try to charge it by pogo pins and nothing happends
i try to do soetring with nvflash but it said
Unknow devices found and do nothing
pls help me ,!!

radeon9550 said:
Hi guys yesterday my nexus freeze in gmail.. so i turn it down by pressing and hold te power button
then the tablet freeze in the Google LOGO
after taht i try to ge into Recovery mode,, it freeze aswell then i just reboot it on bootloader adn i leave it thre for about 1 hour charging
the i try to go to boot loader to fhasl stok rom..
but..!! it wont work.. never turns on..
and it shows in my pc as APX mode
no more than that y tri to start it in bootloader but i just cant with every method i find in internet even i try to charge it by pogo pins and nothing happends
i try to do soetring with nvflash but it said
Unknow devices found and do nothing
pls help me ,!!
Click to expand...
Click to collapse
Ok as far as I have herd there is no way to rescue a bricked nexus 7 using NVflash if there are no Backed-up Blob files on it. If you just ended up in apx mode without doing anything to its bootloader then it is probably out of charge or needs to have a particular button combo to sort it out
if on the other hand you corrupted the bootloader and after that the device is in a sleep of death then you have hardbricked your nexus 7 'apparently'
good luck

No Custom Bootloader
Hill well i never done something to the bootlaoder no Multibot no Custom bootloader ( factory only )
i try a lot of key combination but nothing happend :/
but my questin is i got a second n7 same specs how can i pull the blob files and,
can i use this files to unbrink the other
if i can pls explainme that
i love my tablet i dont wanna see her die
thnaks..

don't give up
radeon9550 said:
Hill well i never done something to the bootlaoder no Multibot no Custom bootloader ( factory only )
i try a lot of key combination but nothing happend :/
but my questin is i got a second n7 same specs how can i pull the blob files and,
can i use this files to unbrink the other
if i can pls explainme that
i love my tablet i dont wanna see her die
thnaks..
Click to expand...
Click to collapse
Ok if you want to know about how to set up a link between the NVflash tool (on your computer) and your new n7 just use the following proceedure here www.androidroot.mobi/pages/guides/tegra3-guide-nvflash-jellybean
As far as your old n7 is concerned if it is definitely hard-bricked and you have not made a backup using NVflash before the brick then there is no known way to save it with only a computer and n7 connected via USB however there is a slim chance your old n7 might just be in a state where it can't access the bootloader because of some power shortage or incorrect button states so do keep trying the key combos and recharging etc because there are a lot of stories of people who escaped using this random strategy. Normally to get into apx mode one would press all three buttons at once so to get out you could do the same so it is worth a try
BTW I have one more trick up my sleeve, if you download WugFresh's toolkit for the n7 (make sure its 2012 edition) then you could try pressing the 'reboot bootloader' option in the advance options menu in the lower left.
good luck

Gloftking said:
Ok if you want to know about how to set up a link between the NVflash tool (on your computer) and your new n7 just use the following proceedure here www.androidroot.mobi/pages/guides/tegra3-guide-nvflash-jellybean
As far as your old n7 is concerned if it is definitely hard-bricked and you have not made a backup using NVflash before the brick then there is no known way to save it with only a computer and n7 connected via USB however there is a slim chance your old n7 might just be in a state where it can't access the bootloader because of some power shortage or incorrect button states so do keep trying the key combos and recharging etc because there are a lot of stories of people who escaped using this random strategy. Normally to get into apx mode one would press all three buttons at once so to get out you could do the same so it is worth a try
BTW I have one more trick up my sleeve, if you download WugFresh's toolkit for the n7 (make sure its 2012 edition) then you could try pressing the 'reboot bootloader' option in the advance options menu in the lower left.
good luck
Click to expand...
Click to collapse
Same deal here - and frickin ASUS wanted $165 JUST for the motherboard part. So I said no to the RMA and they sent it back.
NOW my question is - can I order a motherboard and just swap it out? Does that work? http://www.ebay.com/itm/Asus-Nexus-...2GB-ASUS-Google-ME370T-Ship-Fast/121330719361

bshiznit said:
Same deal here - and frickin ASUS wanted $165 JUST for the motherboard part. So I said no to the RMA and they sent it back.
NOW my question is - can I order a motherboard and just swap it out? Does that work? http://www.ebay.com/itm/Asus-Nexus-...2GB-ASUS-Google-ME370T-Ship-Fast/121330719361
Click to expand...
Click to collapse
Haven't done it myself, but understand it does work. https://www.ifixit.com/Guide/Nexus+7+Motherboard+Replacement/9943

PrizmaticSmoke said:
Haven't done it myself, but understand it does work. https://www.ifixit.com/Guide/Nexus+7+Motherboard+Replacement/9943
Click to expand...
Click to collapse
Thanks! Ordered it and will be attempting

[Q] Tablet Ultimate Brick

So i was trying the new beta for PA android and when i was on recovery wiping as usual, the wipe process just froze there for a while, i decided to leave it till it worked again but to no avail it didnt budge at all, so i commited the ultimate sin, and powered it off by holding the power button...
when i tried again tu turn it on the tablet would go thru the google with the padlock screen and then show me a black screen with a little logo of clockworkmod and a version number below, the screen itself has no use since no matter what button i press it does nothing, other than that the tablet keeps rebooting after that.
when i try any combination of buttons to access either the real recovery or the bootloader the tablet just plain ignores that im trying to turn it on, just doesnt work, it just turns on if im not pressing anything besides the power button.
to sum up to all my problems i would love to keep trying and see if at anypoint it will turn to bootloader, i havent seen the notification of the tablet being charged... meaning that i dont know if it has enough battery to last me the remaning ideas i had.
So in a nutshell
-no bootloader
-no fastboot
-no recovery
-cant tell if battery or not
Please if anyone knows how to fix or at least get me to a bootloader i would fix everything else, but i really need the guidance here

Have you tried another charger and cable? A simple idea, but not one to over look.
Without bootloader menu or recovery, not much you can do. I'd work on getting into one of those first. Not much you can do until then.

Osivanlou said:
So i was trying the new beta for PA android and when i was on recovery wiping as usual, the wipe process just froze there for a while, i decided to leave it till it worked again but to no avail it didnt budge at all, so i commited the ultimate sin, and powered it off by holding the power button...
when i tried again tu turn it on the tablet would go thru the google with the padlock screen and then show me a black screen with a little logo of clockworkmod and a version number below, the screen itself has no use since no matter what button i press it does nothing, other than that the tablet keeps rebooting after that.
Click to expand...
Click to collapse
Are you able to get adb to recognize the device with "adb devices"?

KJ said:
Have you tried another charger and cable? A simple idea, but not one to over look.
Without bootloader menu or recovery, not much you can do. I'd work on getting into one of those first. Not much you can do until then.
Click to expand...
Click to collapse
Yeah ive tried 4 other chargers, and nothing new, i know that the os itself takes care of the charging as does the recovery in some cases, but since i have non i dont know if its gonna charge at all or not and trying doesnt sound really appealing since i should save battery in case theres a solution and needs battery power
but thanks for the answer

[email protected] said:
Are you able to get adb to recognize the device with "adb devices"?
Click to expand...
Click to collapse
Dont really know how to check, i mean i could get into the tools and try the command Adb Devices but how should i even begin to test? i mean shouldnt i be in a adb static platform on the device? if i try to get into bootloader it just doesnt turn on, and when it does it goes straight to the black screen with the clockworkmod symbol and numbers
Thanks for the answer

Osivanlou said:
Dont really know how to check, i mean i could get into the tools and try the command Adb Devices but how should i even begin to test? i mean shouldnt i be in a adb static platform on the device? if i try to get into bootloader it just doesnt turn on, and when it does it goes straight to the black screen with the clockworkmod symbol and numbers
Thanks for the answer
Click to expand...
Click to collapse
if you have enough battery and can get pc to see is thru adb. you may be able to fastboot a new rom onto the device. You can from pc Request device to go into bootloader or fast boot from the PC..
This is your only shot.. I Would suggest borrow a friends Nexus 7 Full Battery . If you do not know how to do any of this . Use skips root kit and use the unbrick or factory reset. it will force your device into fast boot and flash a new rom.
Good Luck

erica_renee said:
if you have enough battery and can get pc to see is thru adb. you may be able to fastboot a new rom onto the device. You can from pc Request device to go into bootloader or fast boot from the PC..
This is your only shot.. I Would suggest borrow a friends Nexus 7 Full Battery . If you do not know how to do any of this . Use skips root kit and use the unbrick or factory reset. it will force your device into fast boot and flash a new rom.
Good Luck
Click to expand...
Click to collapse
yeh i know how to use the skip toolkit, yet i hope i have enough battery for the test, because the only friend that i know owns a nexus 7 left the country a few months back, so the battery sounds like its gonna be hard to get. Anyways, as u were saying theres a posibility that while the tablet is rebooting and rebooting it might be able to be found on the adb devices? and use the fastboot, cuz if thats true u would be the hero ive been waiting for...
imma check and tell u later,
thanks for the answer

black screen but can still feel turn on/off

so i really f* things up...all i need to know is if i have a brick or a heavy rock! So after updating my Verizon VS980 to the latest 4.4.2 kit kat, i then decided to try some ROMS so thats when it went south...long story short i was stuck in fastboot and finally got it to work just the PC wasnt detecting the USB or phone plugged in, i then decided to flash aboot, boot, laf, recovery like suggested in one of the threads...after that it was game over. I can feel it turn on or off if i hold down the power butting but its just a black screen....i tried going into recovery and download mode but nothing comes up just pitch black. so what do i have? pretty much bricked right? and if so should i go get a phone or is there still something i can do? i really appreacite anyone looking at this thread.

robledjl said:
so i really f* things up...all i need to know is if i have a brick or a heavy rock! So after updating my Verizon VS980 to the latest 4.4.2 kit kat, i then decided to try some ROMS so thats when it went south...long story short i was stuck in fastboot and finally got it to work just the PC wasnt detecting the USB or phone plugged in, i then decided to flash aboot, boot, laf, recovery like suggested in one of the threads...after that it was game over. I can feel it turn on or off if i hold down the power butting but its just a black screen....i tried going into recovery and download mode but nothing comes up just pitch black. so what do i have? pretty much bricked right? and if so should i go get a phone or is there still something i can do? i really appreacite anyone looking at this thread.
Click to expand...
Click to collapse
hello
i guess that u should make factory/hard reset by turning the device off - holding the volume down and power buttons when u see lg logo let go the buttons then press them back after all of this - u r in factory reset mode

Hey thanks for the reply but I've been trying to do that and all I feel is the phone turn on and vibrate but no logo or anything shows up

Anyone else???

If you can get to download mode then I would suggest using the kdz method or tot to go back to stock and start all over