Can't get ROM onto Nexus 7 to flash it - Nexus 7 Q&A, Help & Troubleshooting

Hi all,
I made a really dumb mistake, a while ago I installed TWRP on my nexus 7 then downloaded and flashed Nethunter onto it (and no I didnt take a backup first, which was really silly), for a while I have had some issues with updating it, so after a few days of googling and not getting anywhere I thought the best course of action was to re-flash it. I then made another stupid mistake of formatting everything first only to find I had removed the ROM file from my Nexus.
So, I am now in the situation where I dont see a way I can get the ROM onto the device as it has no OS and doesnt power on (just get the Google Logo and doesnt go any further) I have tried inserting a USB external drive via the USB OTG port but the drive just makes a funny whirring noise and doesn't power on properly. I was going to try a USB key just to see how that would fair.
Can anyone offer any advice on how I can get the ROM onto the Nexus?
Thanks

Did you already try to boot into bootloader (vol- & power)? Probably you need to keep the buttons pressed for round about 20 sec. If you are getting there you can most likely go on, otherwise it will become more complicated.

actually managed to sort it, I found that I could side load the ROM using ADB, backup and running now
bugs789 said:
Hi all,
I made a really dumb mistake, a while ago I installed TWRP on my nexus 7 then downloaded and flashed Nethunter onto it (and no I didnt take a backup first, which was really silly), for a while I have had some issues with updating it, so after a few days of googling and not getting anywhere I thought the best course of action was to re-flash it. I then made another stupid mistake of formatting everything first only to find I had removed the ROM file from my Nexus.
So, I am now in the situation where I dont see a way I can get the ROM onto the device as it has no OS and doesnt power on (just get the Google Logo and doesnt go any further) I have tried inserting a USB external drive via the USB OTG port but the drive just makes a funny whirring noise and doesn't power on properly. I was going to try a USB key just to see how that would fair.
Can anyone offer any advice on how I can get the ROM onto the Nexus?
Thanks
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Click to collapse

Related

Someone please HELP me!!!

Hi guys...
I may have made a stupid mistake, but I bought a G2 from a guy today that had it rooted, but messed it up by doing an official Verizon update on top of it, so it was in non working order. When I plugged the phone into the PC, a bunch of multiple letter drives from like E-S popped up saying that they all needed to be formatted. I've never seen anything like it, but this is what I did... I ran a command prompt using DISK PART to format the phone totally all over to one partition & figured that I could work the software out from there, but when I did that, EVERYTHING stopped woring on the phone. No PC recognized drivers, no power up, charging light or nothing! Tell me that there is a way around this...
blackrain047 said:
Hi guys...
I may have made a stupid mistake, but I bought a G2 from a guy today that had it rooted, but messed it up by doing an official Verizon update on top of it, so it was in non working order. When I plugged the phone into the PC, a bunch of multiple letter drives from like E-S popped up saying that they all needed to be formatted. I've never seen anything like it, but this is what I did... I ran a command prompt using DISK PART to format the phone totally all over to one partition & figured that I could work the software out from there, but when I did that, EVERYTHING stopped woring on the phone. No PC recognized drivers, no power up, charging light or nothing! Tell me that there is a way around this...
Click to expand...
Click to collapse
Best way around this is to get your money back. SERIOUSLY!!!!!
Just Kiddint. there is a great tutorial that will restore your phone to stock but will also UNROOT.
http://theunlockr.com/2013/10/31/unroot-lg-g2-verizon/
If you can get into download mode you're slightly ok (from powered off hold vol up while plugging in usb from a charger) though it sounds like you may have wiped all of your partitions and some are important such as efs which contains information unique to your phone.
If download mode works try the return to stock sticky in the developer forum.
Sent from my LG-D800 using Tapatalk
Download mode doesn't work at all. I've tried holding up & power, down & power, up & down then plug into the PC, but nothing... something I'm missing guys?
blackrain047 said:
Download mode doesn't work at all. I've tried holding up & power, down & power, up & down then plug into the PC, but nothing... something I'm missing guys?
Click to expand...
Click to collapse
for download mode it's only hold volume up and plug in usb while its connected to pc or you can try this(http://forum.xda-developers.com/showthread.php?t=2582142) but you need to find the appropriate files and since yours is a different issues/problem you might also have different errors and such so try at your own risk

[Q] [Display Bricked] - Want to make a backup

Hey there,
My LG D802 32GB just fall out of my car and the complete Display is bricked (I think Digitizer is also harmed) and I am not able to touch anywhere.
I know a lot about fastboot, adb and so on. But I do not really know much about this device, since I hadn't got the time to do so, too busy with other stuff. Unfortunately I disabled USB debugging a week ago after I finished some development stuff. And I just want to make a new backup (last one was a few weeks ago ) of my data before I try to repair anything or buy a new one.
I do not know why, but I cannot enter Stock Recovery (just keeps rebooting), Download Mode is working. Phone is also booting normally, just no way my fingers are recognized.
I tried to enter Recovery Mode (stock), to perhaps have adb access (don't know if it is so on d802), with Volume Down+Power, release when Logo appears and then press again, USB Cable was connected. I know i entered it once after buying this phone, but now I am not able to do so. Are there any special drivers which are perhaps missing (installed them with PC Suite, all upgrades were done with it, cause I do not like OTAs for several personal reasons).
Thank you very much for reading it and perhaps helping me!
just want to add something:
Also tried with LG Onscreen Phone, but also deactivated ...
Some recoveries can be used only with hard keys. Or use a mouse to navigate
Thank you for this great idea. Just ordered an OTG adapter.
What do you mean with hard keys? Volume Up/Down ?
akamarukiba said:
Thank you for this great idea. Just ordered an OTG adapter.
What do you mean with hard keys? Volume Up/Down ?
Click to expand...
Click to collapse
Yes exactly. I think cwm can Do this
Ok backup done... Could have thought about this simple option too...

[Q] [HELP] LG G2 D802 in coma - Really Deep, Hard and Seriously Bricked

A few posters here claim that the G2 is unbrickable - but I think I can challenge that. It started off with me wrongly flashing the Cloudy ROM 3.0 - what I didn't realise only till later was that it was intended for the Korean variant of the G2. Dummy move indeed.. I had previously taken the necessary precautions and took a full titanium backup and ROM backup onto a USB drive via TWRP - I previously ran Cloudy ROM 2.2 with Dorimanx Kernel on KK 4.4.2.
Right now, the phone doesn't seem to power on via buttons. When I plug it to the PC via the USB, I get "QHSUSB_BULK" as an unknown device only.. no black screen while on, no drives or COM port.
First off I want to be clear that I know I and only I am responsible for bricking my phone - The reason I'm in this mess is completely down to my stupidity, and trusting 'educated guesses' instead of confirming specs black of white. Just wanted to be clear in case anyone gets the wrong impression.
So this is more or less the sequence of events;
1. After flashing, I got stuck in fastboot mode.. (can't find the link) I followed one post where I needed to flashed .img files via the Fastboot CLI (similar to ADB). I used the images from the LG G2 D802 16GB in europe. source.. It was a toss up between the EUR and non EUR, and so I made the first of my so called 'educated guesses' that sent this phone deeper into the ground.
2. Something went wrong as when I rebooted the phone (had no idea what had gone wrong at the time), I got no logo. After some time, I noticed the screen on with a black background. when plugged into the pc, the QHSUSB_BULK would appear and with it a bunch of drives that Windows thought needed repairing. so I followed This .. I installed ubuntu, booted to terminal so I don't get those auto discovery pop ups, I used the images recommended there for my device (again, it seemed to make sense to use the same that the OP was using for my LG G2 D802 16GB in europe... After I rebooted, it was to my horror that the screen didn't even turn on, with no drives being detected via USB.. just the QHSUSB_BULK. This is what made me realise that the culprit was most probably using wrong images rather than improperly executing the instructions.
3. I opened the phone and tried shorting some capacitors where I'm supposed to see the drives again to no avail. I even tried shorting the capacitors ends as described here to no avail. I done a good full hour shorting the hell out of those capacitors (the post says to keep at it till it works cos it can sometimes be a bit tricky) but I saw no change. I would like to try the DL mode described there but I can't figure out what I have to ground from the images shown in the post regarding the "BOOT CONFIG".
This is basically the state the phone is in at the moment. so to recap:
No bootloader,
no recovery,
no fastboot,
no download mode,
no drives when in QHSUSB_BULK mode,
no COM port.
From the multitude of unbricking guides here, I gather that I either need to see that bunch of drives again when via USB or a COM port. I tried installing Qualcomm drivers, thinking that if the pc recognises the device, I might get the pc to identify the COM port, but the driver couldn't be installed for the QHSUSB_BULK device (got some error.. I can update this post later).
I tagged this post as a question.. i'm sure there's a question here somewhere...
HELP?!
bump.
Could really use a little help... anything
kuwlij said:
bump.
Could really use a little help... anything
Click to expand...
Click to collapse
You can ask @somboons
he came from deep hard bricked.
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
http://forum.xda-developers.com/showpost.php?p=56608822&postcount=2
http://forum.xda-developers.com/lg-g2/development-d802/tools-mini-srk-tool-d802-t3098163
:good:
.
...
When I first tried to enter QHUSB_BULK mode on mine, I took ages. Seriously, ages. It kept not showing the drives. Important thing to remember, in my opinion, is to use Linux (latest Ubuntu in my case). If you keep trying, eventually they will pop up for a split second. I can't remember how I did it, but you have to use a partition tool, I think, to get it to freeze the positions of the drives. Then, once it's 'mounted' them, you can try (and keep trying) to flash to each partition.
Mine was well and truly screwed, so I flashed a blank partition table on, then flashed each image onto that. It took a lot of trial and error, though, because it kept not showing the drives.
furzewolf said:
When I first tried to enter QHUSB_BULK mode on mine, I took ages. Seriously, ages. It kept not showing the drives. Important thing to remember, in my opinion, is to use Linux (latest Ubuntu in my case). If you keep trying, eventually they will pop up for a split second. I can't remember how I did it, but you have to use a partition tool, I think, to get it to freeze the positions of the drives. Then, once it's 'mounted' them, you can try (and keep trying) to flash to each partition.
Mine was well and truly screwed, so I flashed a blank partition table on, then flashed each image onto that. It took a lot of trial and error, though, because it kept not showing the drives.
Click to expand...
Click to collapse
Mine was exactly the same I also had a blank partition table.. Anyway just keep trying because It took me a while to get mine working.. I was trying to short the capacitors but it seems to be quite hard sometimes especially if you aren't carefull.. Because you can start to mess with the soldering of the capacitors and it'll be harder after that.. It happened to me..
Anyway here's something I've wanted to ask everyone, after I sucessfully put my phone back to life, it seems like the middle button isn't working, the LED and the volume rockers are fully working, but if I ever press the power button after some time it shutdowns just like if I pressed and hold for a while, has anyone got this problem? It seems like the flex cable or something is damaged but i wanted to be sure it's really damaged or just something I could solve.. thanks and sorry for the off topic..
kuwlij said:
bump.
Could really use a little help... anything
Click to expand...
Click to collapse
This
HTML:
http://forum.xda-developers.com/showthread.php?t=2582142
saved my D802.Take time to read all post

cm 12.1 rom is fine but "System UI has crashed" ;-;

My issue is a little strange but please bare with me.
I have CM 12.1 installed and after the boot up animation and arriving at the home screen I am hit with a "Unfortunately System UI has crashed." This is because I was trying out different CM Themes I was downloading from the play store. Most of them worked fine but one of them just messed everything up and this happened ::crying:
Complications
1. According to my research this issue could be easily resolved with on other android devices that actually have Power and Volume Buttons to enter the Recovery mode upon boot up but as you guys know the MOJO does not.
2. i cannot use my windows 10 pc to force the MOJO to recovery mode because my PC actually has an issue of its own right now where everytime I restart it, it wont boot back up until like the next day after all the power has drained out of it so I can actually never turn it off. And because of this I cannot do the thing where I have to restart my Windows 10 pc to disable driver signature verification otherwise I could use my PC to fix it.
Everytime before when I flashed roms back and forth from stock and Cm 12.1 I didnt use a PC I just used the MOJO itself.
I do have a physical keyboartd in my arsenal though so if there is a way to force the MOJO into recovery upon bootup with a certain Key combination I dont know about it. It's really crazy to believe that changing the CM themes is actually what screwed my MOJO rather than all the times before I've done so much more risky things on it.
Anyway if you guys can help me I would appreciate it. If not I just am going to cry myself to sleep. My email is [email protected] if you want to get in touch with me if you cant on here. THANKS
wifiwitch987 said:
My issue is a little strange but please bare with me.
I have CM 12.1 installed and after the boot up animation and arriving at the home screen I am hit with a "Unfortunately System UI has crashed." This is because I was trying out different CM Themes I was downloading from the play store. Most of them worked fine but one of them just messed everything up and this happened ::crying:
Complications
1. According to my research this issue could be easily resolved with on other android devices that actually have Power and Volume Buttons to enter the Recovery mode upon boot up but as you guys know the MOJO does not.
2. i cannot use my windows 10 pc to force the MOJO to recovery mode because my PC actually has an issue of its own right now where everytime I restart it, it wont boot back up until like the next day after all the power has drained out of it so I can actually never turn it off. And because of this I cannot do the thing where I have to restart my Windows 10 pc to disable driver signature verification otherwise I could use my PC to fix it.
Everytime before when I flashed roms back and forth from stock and Cm 12.1 I didnt use a PC I just used the MOJO itself.
I do have a physical keyboartd in my arsenal though so if there is a way to force the MOJO into recovery upon bootup with a certain Key combination I dont know about it. It's really crazy to believe that changing the CM themes is actually what screwed my MOJO rather than all the times before I've done so much more risky things on it.
Anyway if you guys can help me I would appreciate it. If not I just am going to cry myself to sleep. My email is [email protected] if you want to get in touch with me if you cant on here. THANKS
Click to expand...
Click to collapse
I think first I'd replace the PC. If that's not practical, try to boot it to this .iso once you've burned it to CD:
http://www.mediafire.com/download/62oh30gzjzvsbew/sulu2-528.007-android.iso
Download the recovery.img to root's home, connect to the MOJO and turn it on, open a terminal and issue:
# fastboot -i 0x0738 boot openrecovery-twrp-2.8.2.0-mojo.img
Should boot the MOJO into the recovery. If you can't get your PC to boot properly I think you're OOL. You might look into getting a used PC, one that's out-of-date or simply has a bad (or no) HDD, that you can pick up cheap, and use this simple Linux distro (Puppy Linux it is, with fastboot and adb binaries installed by me) for an OS. But be careful, Linux is addictive, and you may find yourself in the same predicament as I am: losing patience with the bloated domineering Windows OS.
Hi thank you for the response. Replacing my PC is on my list but it is also easy to just go on without turning it on but i look to renew ym warranty with Alienware and having them fix or replace it, even though they should do it for free because it seem to be an issue alot of people are having with the early Alienware Alphas.
Anyways my PC is an alienware Alpha it doesnt have a disk drive. Can I just put this .iso on a usb flash drive instead of a cd-rom ? If I can do I have to format the flash drive to a certain format ?
Thanks dude
wifiwitch987 said:
Hi thank you for the response. Replacing my PC is on my list but it is also easy to just go on without turning it on but i look to renew ym warranty with Alienware and having them fix or replace it, even though they should do it for free because it seem to be an issue alot of people are having with the early Alienware Alphas.
Anyways my PC is an alienware Alpha it doesnt have a disk drive. Can I just put this .iso on a usb flash drive instead of a cd-rom ? If I can do I have to format the flash drive to a certain format ?
Thanks dude
Click to expand...
Click to collapse
You can flash this (or most other linux live-CD .iso files) to a USB drive with a utility called Unetbootin. IIRC it's available for Windows, Mac, or Linux. I have no idea whether your Alpha is capable of booting to it, though. Any chance of borrowing another PC, maybe one a bit more traditional? Your little brother's old slow laptop maybe? FWIW I just finally managed to get fastboot and adb working on a Chromebook with an ARMv7 processor, but I doubt you want to go through that much work. Does the Alpha have an Intel processor?

N7 2012 [WiFi] Grouper - Bricked or the Flash Memory just failed?

Ok, so to start off I'm very familiar with Nexus Root Toolkit an its many graceful features & its ablity to bring the N7 from the brink of destruction (Soft -Brick) "AS LONG AS YOUR PC CAN DETECT THE DEVICE".
Here's the issue.. I was in TWRP (Multi-ROM) just renaming 1 of the Secondary ROMs to more friendly names, I hadn't done any flashing of any zips or roms for a few boots, I just booted into Recovery to do some renaming of Secondary ROMs that I had installed a few nights before but I had been in an out of several different one's just making sure they were all working so anyway.. after I was done renaming, I reboot the system & it just went F'ing blank.. now nothing.. there's no back light, no bootlogo, nothing happens at all when I plug in the charging or hold the power button with or w/out the vol-+ keys, I've checked the battery connection, it was snug but I removed it over night.. still nothing, I'm just clueless.. Before we jump on the NRT do a factory wipe & restore, when I plug it into Windows it instantly pops up with the "Device has Malfunctioned" not the "installing adb drivers" or anything like it has so many times before.. either Im over thinking this an the answer is so simple Im blinded by rage over how much this p1sses me off that it was working fine one moment an then just reboots to blank nothingness.. even if I take the battery out an try plugging it directing into the pc via the OEM usb cable it gives the same error with or w/o the battery in .. the toolkit cant even see it cause windows cant establish what the hell it is.. And yes I've tried installing every android driver possible.. the N7 was primarily for my wife to read e-books on.. so i rarely played with it.. an it was new sealed in the box just bought last year around this time so i can't believe the Flash Memory is shot already, if anyone could throw me their 2 cents it would be greatly appreciated , this is so frustrating but I think its BRICKED.. or at least some tiny flash chip is toast..
its the - N7 2012 Grouper WIFI Only model -
p.s. I apologize for the slight harsh tone, I'm just upset with this issue.. I got this particular tablet with the knowledge an understanding that it was the (almost) un-brickable tablet, yet I managed to do it.. If by some chance I get it to fire up, I will definitely let ya know.. But I have read alot of posts an my guess is somehow I managed to mess up the nvflash an now the memory chip or something is corrupt beyond a NRT Factory reset.. but again it was at almost full battery when i rebooted from within the TWRP Menus & I wasn't flashing anything previous to me being in my Main Rom which was stock rooted 4.4.4 de-bloated, playing a game called Empire 4 Kingdoms for like a 1/2 (just getting my daily's) before i decided to check out my Secondary Roms an rename a few because I wanted to started playing around with them to test how the same game played on different flavors or Android..
phnxnvrdies said:
Ok, so to start off I'm very familiar with Nexus Root Toolkit an its many graceful features & its ablity to bring the N7 from the brink of destruction (Soft -Brick) "AS LONG AS YOUR PC CAN DETECT THE DEVICE".
Here's the issue.. I was in TWRP (Multi-ROM) just renaming 1 of the Secondary ROMs to more friendly names, I hadn't done any flashing of any zips or roms for a few boots, I just booted into Recovery to do some renaming of Secondary ROMs that I had installed a few nights before but I had been in an out of several different one's just making sure they were all working so anyway.. after I was done renaming, I reboot the system & it just went F'ing blank.. now nothing.. there's no back light, no bootlogo, nothing happens at all when I plug in the charging or hold the power button with or w/out the vol-+ keys, I've checked the battery connection, it was snug but I removed it over night.. still nothing, I'm just clueless.. Before we jump on the NRT do a factory wipe & restore, when I plug it into Windows it instantly pops up with the "Device has Malfunctioned" not the "installing adb drivers" or anything like it has so many times before.. either Im over thinking this an the answer is so simple Im blinded by rage over how much this p1sses me off that it was working fine one moment an then just reboots to blank nothingness.. even if I take the battery out an try plugging it directing into the pc via the OEM usb cable it gives the same error with or w/o the battery in .. the toolkit cant even see it cause windows cant establish what the hell it is.. And yes I've tried installing every android driver possible.. the N7 was primarily for my wife to read e-books on.. so i rarely played with it.. an it was new sealed in the box just bought last year around this time so i can't believe the Flash Memory is shot already, if anyone could throw me their 2 cents it would be greatly appreciated , this is so frustrating but I think its BRICKED.. or at least some tiny flash chip is toast..
its the - N7 2012 Grouper WIFI Only model -
p.s. I apologize for the slight harsh tone, I'm just upset with this issue.. I got this particular tablet with the knowledge an understanding that it was the (almost) un-brickable tablet, yet I managed to do it.. If by some chance I get it to fire up, I will definitely let ya know.. But I have read alot of posts an my guess is somehow I managed to mess up the nvflash an now the memory chip or something is corrupt beyond a NRT Factory reset.. but again it was at almost full battery when i rebooted from within the TWRP Menus & I wasn't flashing anything previous to me being in my Main Rom which was stock rooted 4.4.4 de-bloated, playing a game called Empire 4 Kingdoms for like a 1/2 (just getting my daily's) before i decided to check out my Secondary Roms an rename a few because I wanted to started playing around with them to test how the same game played on different flavors or Android..
Click to expand...
Click to collapse
UPDATE STATUS - If I plug it into the pc without the battery i get a windows driver install box that says "Installing APX..." does this indicate the NVFlash is corrupt or is there a way to get out of apx mode.. im not familiar with that mode .. only ADB & fastboot..
Update 2 - After reading lots, I've come to conclude its hardbricked, must have had an error in memory or whatever.. its stuck in APX mode so im going to replace the whole MB with a working 32GB [model me370t] & start over .. maybe ill not install so many ROMS via multirom.. just a few - THREAD BE CLOSED - I'm done here, good luck to anyone with similar results

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