I killed my N7 2nd Gen, is there any hope? - Nexus 7 (2013) Q&A

Ok, my Nexus 7 2013 wifi (flo) is totally dead, almost. I thought I was smart enough to play around with the partition table with "parted" (trying to make room for gapps) ... NOT! By the time I finished messing around my tablet was totally dark. When I plug it in via USB to my PC, the PC recognizes that something just plugged in but it does not recognize the device. I can no longer use ADB FASTBOOT to do anything and of course TWRP is out of the question since I have no image on my tablet screen.
Is there anything for me to try short of buying another motherboard? Before the demise I tried sysrepart.zip, sysrepartundo.zip, Miflash, stock ROMs, kernels, etc.
I fear I have no way in since I have no display and the PC will not recognize the tablet.
UPDATE: For some unknown reason my bootloader came back, but that is all I have. The bootloader is just a display, it is useless ... it does not work.
gusw

Guswhite3 said:
...UPDATE: For some unknown reason my bootloader came back, but that is all I have. The bootloader is just a display, it is useless ... it does not work
Click to expand...
Click to collapse
So the bootloader came back, fastboot mode is displayed, but you can not use the navigation buttons and, when connected to a PC, the "fastboot devices" command is not listing your unit, right?
In this case go here to explore diagnostic and repair options.
If something else happens, either do RESTOCK or UNBRICKING.
:fingers-crossed:

k23m said:
So the bootloader came back, fastboot mode is displayed, but you can not use the navigation buttons and, when connected to a PC, the "fastboot devices" command is not listing your unit, right?
In this case go here to explore diagnostic and repair options.
If something else happens, either do RESTOCK or UNBRICKING.
:fingers-crossed:
Click to expand...
Click to collapse
Thank you. I used both UNBRICKING then RESTOCK and my tablet came back to life! Thanks again for pointing me to these two scripts.
guswhite3

https://forum.xda-developers.com/showpost.php?p=75360854&postcount=199

Related

[Q] Bricked Kindle Fire- Stuck on FFF, device not recognized by anything.

Alright folks, I would like to start off with a little introduction:
I'm extremely new to the rooting scene, i've been jailbreaking iphones and ipods since day one. That being said, I probably should have spent more time researching this technique before I went through with it.
Fast forward to today:
I tried rooting my device awhile back, wasn't a 100% successful and I really didn't have the time to work it out. I did have FFF installed and the next window (which i'm not exactly sure what it's called, which allowed me to boot in various moods and such)
Earlier today I got stuck in a boot loop, where my kindle would turn off as soon as i restarted it, and after i selected normal boot mode. I decided it would be a good idea to try a different boot option, so i tried the FF boot, which completely ruined my day.
My current situation is as follows:
I'm currently stuck on the first FFF screen (yellow triangle, with the green light on), i can do nothing else from that screen except hard (cold) reboots. When i plug my kindle in (Mac, windows 7, windows XP), the device is not recognized and i get zero response. I've tried a decent amount of suggestions on this forum, including Kindle fire unbrick (Which can somehow see that there adb is installed, but the bootmode is unknown)
Help out of this current situation would be wonderful. I'm really in a jam here.
Sounds like you are stuck in fastboot and you might have a dead battery too.
You should read this...
http://forum.xda-developers.com/showthread.php?t=1552547
1st post for background information, 2nd post for making sure your device drivers are loading/working, and the 3rd post for fastboot and adb commands. You'll probably need to use fastboot to change the bootmode back to normal.
This one...
http://forum.xda-developers.com/showthread.php?t=1623244
address dead battery problems. You might be affect this by this one as well.
Thanks for the reply,
I read pieces of the first one before I posted on this thread. The KF was 100% charged and i only used it for about 15mins before the whole crashing problem occurred, so i highly doubt it's a low battery issue.
The screen that i'm stuck on is actually the recovery screen. After reading the article in it's entirety, i'm still not exactly sure what to do. My problem is that i cannot get my kindle fire to be recognized as any type of USB device on any type of computer. Wouldn't that issue need to be addressed before i can go about doing anything else? Or will drivers see what my computer think is not there?
B4CKlash said:
Thanks for the reply,
I read pieces of the first one before I posted on this thread. The KF was 100% charged and i only used it for about 15mins before the whole crashing problem occurred, so i highly doubt it's a low battery issue.
The screen that i'm stuck on is actually the recovery screen. After reading the article in it's entirety, i'm still not exactly sure what to do. My problem is that i cannot get my kindle fire to be recognized as any type of USB device on any type of computer. Wouldn't that issue need to be addressed before i can go about doing anything else? Or will drivers see what my computer think is not there?
Click to expand...
Click to collapse
What do you mean by recovery screen? Because your first post said FFF and that's your bootloader. If the yellow triangle boot logo comes up and that's all that the display does (doesn't go black and redisplay the boot logo), then it's in fastboot mode. Windows should give you an indication that it's connecting with a series of 2 connection beeps (low->high tone) without a following set of disconnect beeps (high->low tone). The device manager will show something new in the list (this is covered in post #2 in the first URL I pasted for you).
Yes, you need to get something to get recognized by your computer then you need to install the proper drivers for it. Look at post #2 again, and see if you can figure out what device is appearing in the list and get the drivers loaded for it. If you get absolutely nothing, there's something wrong with the bootloader, your USB cable, USB port, or computer in general and it's a bigger problem.
If nothing happens on your computer, find another one and hook it up there. You might also look at this...
http://forum.xda-developers.com/showthread.php?t=1430038
and see if Linux can help you.
I'm sorry, I was mistaken. I am stuck in Fastboot mode, The one with the yellow triangle. I get zero indication from Windows device manager list, or beeps (same on my mac). I have tried 3 different cables, so i highly doubt that's the problem either.
My next step is the linux distro, which i will get back to you with when I get everything installed. My only concern is that the linux distribution isn't going to recognize the USB either (seeing as 2 other operating systems haven't) and that there's something inherently wrong with my kindle. In which case i'm ****ed? or is there any chance that amazon will take it back?
B4CKlash said:
I'm sorry, I was mistaken. I am stuck in Fastboot mode, The one with the yellow triangle. I get zero indication from Windows device manager list, or beeps (same on my mac). I have tried 3 different cables, so i highly doubt that's the problem either.
My next step is the linux distro, which i will get back to you with when I get everything installed. My only concern is that the linux distribution isn't going to recognize the USB either (seeing as 2 other operating systems haven't) and that there's something inherently wrong with my kindle. In which case i'm ****ed? or is there any chance that amazon will take it back?
Click to expand...
Click to collapse
Windows will be the only one that of the three that will beep at you. There's a better chance of you getting something done with Linux, but it's starting to sound like a bootloader problem to me. There's another user with a similar problem to yours and he's basically where you are now. Both of you might have to open up the case and get it to USB boot mode where you can upload a bootloader to it through USB. Try Firekit and see if it gets anywhere.

[Q] KF2 Empty and not recognized on windows

So I was trying to change my son's Fire 2 over to the new Kit Kat OS, and as I was downloading the necessary files to my computer, I thought I would wipe everything, since he had managed to pretty much fill it with junk, (he's 8). I have TWRP, (2.3.3.0) installed, and used that to wipe everything, including the internal storage and the format data wipe. I have done this with my Fire 1 with no issues, but this time I ran into a problem. TWRP works fine, but now windows won't recognize the tablet. When I go to mount the usb storage to copy the os files over, windows 7 cant load the device drives, and in my device manager it shows the Amazon Kindle fire 2 with the yellow exclamation mark next to it, saying that the drivers for this device are not installed. I have the SDK installed, and I have gone through and re installed the device drivers several times, and also uninstalled the kindle from the device list in manager. Nothing is working. I have attempted fastboot, but when I do try, it gets stuck at the "press the button menu" for TWRP, and after running the fastboot -i 0x1949 getvar product command, it tells me it sees an Otter2-Prod-04.
Does anybody have any ideas or suggestions on how I can get into the usb storage so I can load the OS info? Thanks for any help.
Dead?
Well, I rebooted from TWRP and it just went black. No light when the cable is plugged in, (factory cable), no twenty second reset working, nothing. IS it safe to assume I now have a pretty paperweight, and I should be looking into getting my son another tablet?
xanthian23 said:
Well, I rebooted from TWRP and it just went black. No light when the cable is plugged in, (factory cable), no twenty second reset working, nothing. IS it safe to assume I now have a pretty paperweight, and I should be looking into getting my son another tablet?
Click to expand...
Click to collapse
Leave it on the charger overnight. Keep trying 20 second reboot. If you can get back into recovery you can adb sideload a rom into the device.
You've never been able to USB Mount this device from recovery.
Good luck. No reason it should be bricked....
How did you try to get into fast boot? You need a fastboot cable. This device is NOTHING LIKE the kf1.
Edit: also need to be sure exactly which kf2 you have.
--》Sent from my mind to your screen
mindmajick said:
Leave it on the charger overnight. Keep trying 20 second reboot. If you can get back into recovery you can adb sideload a rom into the device.
You've never been able to USB Mount this device from recovery.
Good luck. No reason it should be bricked....
How did you try to get into fast boot? You need a fastboot cable. This device is NOTHING LIKE the kf1.
Edit: also need to be sure exactly which kf2 you have.
--》Sent from my mind to your screen
Click to expand...
Click to collapse
I have the standard cheap Kf2, no HD, just the upgrade from the first from last year, (2012), they were selling around Christmas last year. I have tried getting it to start back up, but with no success. I don't even understand why it shut down like that. I hadn't done anything to it other than reboot, which I had done successfully several times before. As for the fastboot, I may be incorrect. I ran the adb command: fastboot -i 0x1949 getvar product in CMD, and then plugged the kindle in and booted up. It showed it was an otter4 or something like that, which I thought meant it was in fastboot. At that time I was using my S4 usb cable. I'm sure I can sort out ho to sideload a rom via adb if I can ever get it started back up again. I had thought about opening it up and unplugging the battery and then re-plugging it back it to try to reset it, but I doubt it will help. Would getting a fastboot cable possibly make it start back up? If anyone has any suggestions on how I can get this thing started up again I would greatly appreciate it. I fell like crap for bricking my kids kindle, he's 8, so it's really important to him. It'll take me several months to save up to buy another one, so if I can get it running again, that would be awesome.
Here's a bit of an oddity, and maybe this spells some hope for me yet. So I plug the KF2 into the computer with the factory cable, hold down the power button for twenty seconds, let go, and then hit the power button again, for about a second, and windows makes the usb device plugged in sound, followed by a usb rejected or not recognized sound. It repeats this over and over for about thirty seconds or so and then stops. So there is something going on with the kindle, and its not flat out dead, or at least it seems. Is this a good sign? Does this help anyone to figure out what I might need to do?
So just to be sure that I was using a fastboot cable, even though I believe that my samsung s4 cable is fastboot capable, and I'm pretty sure I am using the factory cable, (it's not marked so I can't be 100% sure), I built my own fastboot cable, via instructions on how to do so on xda. (found HERE) It's doing the same thing with windows making the usb device inserted / recognized sound, followed by the usb device error sound. I'm guessing that this is a bad thing, am I correct?
One more bit of information to add to the list. I attempted to do the fastboot mode again,and decided to watch my device manager. Whenever windows chimes off that it detects a usb device, something called OMAP 4430 pops up for about a second before disappearing when the error sound comes on. I'm going to try and get a driver for that, just to see what happens. Maybe it'll help. I doubt it, but you never know until you try...
This just keeps getting weirder and weirder. So I installed the omap driver for windows and android, and now windows recognizes the device, but only for about a second. It just keeps cycling through the usb connected sound, recognizing the omap device, and then the usb disconnected sound, as though the device were being plugged in and then unplugged about every second for roughly thirty seconds. I'm starting to think there is something seriously wrong, which bites. If anyone has any suggestions, I'm all ears.
That's a hard brick' we can't use the usboot/aboot utility to fix the device like you can on other omap devices because we need a certain signed file to fix the boot loader. Only amazon has that file and they aren't giving it out. There is a way to recover your device from a hard brick but you need to be good with a soldering iron and have a USB sdcard reader, the kind that kinda is like a flashdrive rather than the multi type readers and some really small wire. Kurohyou wrote a tutorial on how to fix it in the kf2 dev section, not sure if he ever added the part in on how to reflash the boot loader from Linux, but if you take this route and try to fix it I wouldn't mind helping.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
stunts513 said:
That's a hard brick' we can't use the usboot/aboot utility to fix the device like you can on other omap devices because we need a certain signed file to fix the boot loader. Only amazon has that file and they aren't giving it out. There is a way to recover your device from a hard brick but you need to be good with a soldering iron and have a USB sdcard reader, the kind that kinda is like a flashdrive rather than the multi type readers and some really small wire. Kurohyou wrote a tutorial on how to fix it in the kf2 dev section, not sure if he ever added the part in on how to reflash the boot loader from Linux, but if you take this route and try to fix it I wouldn't mind helping.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
Click to expand...
Click to collapse
OK, I have both a tf - micro sd card usb card reader, and a full sd card usb card reader. I'll have to go digging for them in the morning, but I think I can find them. I'm also really good with a soldering iron, (used to be a vcr / tv repair technician), It took me roughly two minutes to do the homemade factory cable. So I am game, especially since at this point I really have nothing to loose by trying. Would you mind posting a link to where the tutorial is? I'm going to go looking for it, but just in case I can't find it, a link would help. And thank you so much for this suggestion!
OK, I found the tutorial on how to wire everything up and what's needed. I'll have to go get some small wire and a better tip for my iron, but aside form that, the wiring and soldering seems simple enough. My problem is going to be dealing with linux. I know Windows backwards and forwards, but I have a pretty limited knowledge of linux, aside from a few things we did in school to cover general PC repair. I can get it up an running, which I will do tomorrow, but I may need some help sorting out what to do with it once I have the board lined up and ready to roll, which will have to wait till next week when I get back from a work trip. Do you know if kurohyou offers repairs? If it's not too expensive, I would be willing to pay for the fix.
He might repair it, he just made a solderless repair tool to repair them. But like I said I'm more than willing to help with the Linux side, I'm a PC tech myself and use Linux primarily, you can basically burn an ubuntu live CD or put it on a USB stick and boot into the entire os without having to install it, from there's its as simple as plugging the device into the PC, and seeing what device path it assigned to the kindle's emmc, and running a dd command to flash the boot loader back onto the device.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
stunts513 said:
... you can basically burn an ubuntu live CD or put it on a USB stick and boot into the entire os without having to install it, from there's its as simple as plugging the device into the PC, and seeing what device path it assigned to the kindle's emmc, and running a dd command to flash the boot loader back onto the device.
Click to expand...
Click to collapse
Yeah, I've ran a live usb version of unbuntu a few times, and in the past I have had the full version on my system, but I rarely ever used it, so I got rid of it. I have an extra 600 gig's of space just sitting around on my laptop, so I will install a full version, and get off my lazy rear and start learning linux. This should be a good first lesson. I can't do any of this until next week though, so I will be pm'ing you once I've gotten everythig hooked up and ready to go. Thanks again for the help.
I had a question about the repair though. I went through the discussion, and I may have just missed it, but did he ever figure out how to get the OS up and running? From what I could tell, he was still working on it, and hadn't managed to get a working rom loaded. I probably just either missed it, or didn't understand one of the post's.

[Q] cant enable usb debugging, fastboot doesnt work

I have a Nexus 7 2013 that wont boot. USB Debugging was not enabled. At this point, I am just trying to wipe the machine with a stock image, but I am having trouble.
I have installed the sdk and drivers (so many drivers!)
Recovery mode fastboot does not recognize the device.
ADB recognizes the Nexus, but I cant seem to get it to do anything with it.
e: failed to mount anything.
I have read through so many forum threads that I'm just overwhelmed, and they all seem to require the machine being in USB debugging mode before any changes can be made.
Please help or tell me what pertinent information I have omitted.
Thank you
I think USB debugging only matters in ADB, which is when the device is actually booted into Android OS. You probably want fastboot, which is a different "application" and set of commands in a command prompt.
Code:
fastboot devices
Does that give you anything when the tablet is in fastboot mode? It should list the serial number of the device, similar to "adb devices" does. If not, it could be drivers, or another issue with the device.
Have you tried unlocking the bootloader? This will induce a factory reset of the current firmware version, which may allow you at least boot normally and take any available OTA updates.
Hello,
fastboot devices lists nothing, while adb does show the serial number.
I have used so many tutorials and a couple of toolkits that now I have no idea what is happening with my drivers.
Unlocking the bootloader to force a factory reset sounds amazing, but all the information I can find says I need to have USB debugging enabled to do so. I can not boot into the system to enable it.
Is there a way to force a reset without USB debugging?
Thank you
Usb debugging is irrelevant. Forget about it, it's only used when the system is booted.
You need to get fastboot devices to recognize the tablet.
Uninstall any and all toolkits and drivers. Redownload the sdk. Boot to the bootloader and plug it in, the drivers should install automatically. If not install the google usb drivers from the sdk manager in the sdk.
Try fastboot devices again. If it doesn't work try a different usb cord/port/computer.
You are in the bootloader when running this command right? Not the recovery? I think with the tablet off it's volume down and power. The screen that says start in big green letters at the top and has device info in the bottom left is what you want.
Edit: Did you boot to recovery and select the options to wipe data and cache? Sometimes thats all thats needed.
Also booting to recovery and performing a factory reset may be sufficient.
ADB will indeed function in recovery. I don't think you have to enable USB debugging to get this to work though.
Are you typing fastboot devices while booted in recovery? Typing fastboot devices while in recovery or booted into Android will do nothing.
hello, thank you for your advice. I now get the nexus seen by fastboot (and win 7) but have hit a wall. The last time I had my computer and the nexus together was weeks ago, when I my computer BSOD during what I thought was a simple flashing of the the stock image, but turned out to be hours of the nexus saying it was erasing personal data ... and then crash. I have replaced and added fans so my cpu wont overheat again, so please offer ideas why "fastboot flashall" or "fastboot flash image-razor-kot49h" wont work.
I appreciate all responses, and believe the answer is either very simple or a catastrophic hardware failure. I base this belief on what is left in my head after smashing it into the wall so many times over the last month when my wife asks me, "have you fixed my nexus yet, or do I need to figure out a way to buy a new one next month?"
I am stuck at unlocking the bootloader. I have highlighted "yes" on the nexus and pressed power and my command window says "erasing user data." It has said this for the last 18 hours. This is the second computer I have tried this on, using 3 different usb cables. What am I missing?
helpmynexus said:
hello, thank you for your advice. I now get the nexus seen by fastboot (and win 7) but have hit a wall. The last time I had my computer and the nexus together was weeks ago, when I my computer BSOD during what I thought was a simple flashing of the the stock image, but turned out to be hours of the nexus saying it was erasing personal data ... and then crash. I have replaced and added fans so my cpu wont overheat again, so please offer ideas why "fastboot flashall" or "fastboot flash image-razor-kot49h" wont work.
I appreciate all responses, and believe the answer is either very simple or a catastrophic hardware failure. I base this belief on what is left in my head after smashing it into the wall so many times over the last month when my wife asks me, "have you fixed my nexus yet, or do I need to figure out a way to buy a new one next month?"
I am stuck at unlocking the bootloader. I have highlighted "yes" on the nexus and pressed power and my command window says "erasing user data." It has said this for the last 18 hours. This is the second computer I have tried this on, using 3 different usb cables. What am I missing?
Click to expand...
Click to collapse
I have the same problem .. Have You reslove it?
bikicviki said:
I have the same problem .. Have You reslove it?
Click to expand...
Click to collapse
This may help...it may not. But I was having issues getting my bootloader unlocked also when I started on mine. My remedy was to
1 plug in the nexus into the usb
2 I run Linux so it gives me choices on what to do with newly plugged in usb device. I noticed two identical choices to mount device. Choosing one just mounted the camera for some strange reason. I closed that window, then chose the other choice to mount device, the window opened and my full internals were there in the window
3 from a terminal I just wrote a prompt: fastboot oem unlock
and for some reason, it unlocked.
To sum it up I'm convinced it has something to do with how the device gets mounted. At least on mine anyway.
As for activating developer from a terminal I read it could be done but never tried it myself, if you want here's the link for the info, read the second answer down.
https://stackoverflow.com/questions/47510232/is-there-any-adb-command-to-enable-developer-options
Also check out the fastboot manual for some other things to try, you never know some may work in your situation at a terminal prompt
man fastboot
---------- Post added at 07:12 PM ---------- Previous post was at 06:57 PM ----------
Troops42 said:
This may help...it may not. But I was having issues getting my bootloader unlocked also when I started on mine. My remedy was to
1 plug in the nexus into the usb
2 I run Linux so it gives me choices on what to do with newly plugged in usb device. I noticed two identical choices to mount device. Choosing one just mounted the camera for some strange reason. I closed that window, then chose the other choice to mount device, the window opened and my full internals were there in the window
3 from a terminal I just wrote a prompt: fastboot oem unlock
and for some reason, it unlocked.
To sum it up I'm convinced it has something to do with how the device gets mounted. At least on mine anyway.
As for activating developer from a terminal I read it could be done but never tried it myself, if you want here's the link for the info, read the second answer down.
https://stackoverflow.com/questions/47510232/is-there-any-adb-command-to-enable-developer-options
Also check out the fastboot manual for some other things to try, you never know some may work in your situation at a terminal prompt
man fastboot
Click to expand...
Click to collapse
Tried to edit but anyway:
After re..re, rereading your post, and responces. Have you tried the old fashioned way
Hold down the (down volume) button at the same time the (power) key.."Together" If you get anything that pops on your screen let go of the keys, one tap at a time tap the volume up or down key ONLY, until it says (START), its in green type. if you get there you should be ok, to move along

Bricked? Thanks LineageOS

So I tried to migrate from CM to Lineage (which ive already done on my N5) and while formating my data due to encryption, my tablet is completely F'd in the A.
If I had it connected to my PC i could see it power on and would show 30 or so unknown partitions, but my screen would be blank.
I ended up deleting all of the partitions but now i cant even see the device at all.
Since i cant get anyhting on the display and since i cant even get to fastboot, i have a feeling in screwed and need to go get a new board for it now... or just a new tablet i guess, but i rly liked my & and id hate to be w/o it over something stupid like this...
Can anybody else at least confirm or possibly have another idea?
I dont even get the charging animation with it off either...
carnagex420x said:
So I tried to migrate from CM to Lineage (which ive already done on my N5) and while formating my data due to encryption, my tablet is completely F'd in the A.
If I had it connected to my PC i could see it power on and would show 30 or so unknown partitions, but my screen would be blank.
I ended up deleting all of the partitions but now i cant even see the device at all.
Since i cant get anyhting on the display and since i cant even get to fastboot, i have a feeling in screwed and need to go get a new board for it now... or just a new tablet i guess, but i rly liked my & and id hate to be w/o it over something stupid like this...
Can anybody else at least confirm or possibly have another idea?
I dont even get the charging animation with it off either...
Click to expand...
Click to collapse
Do you have ADB set up? if not, now may be a good time and through ADB try download a factory image.
carnagex420x said:
If I had it connected to my PC i could see it power on and would show 30 or so unknown partitions, but my screen would be blank. I ended up deleting all of the partitions but now i cant even see the device at all.
Click to expand...
Click to collapse
Connect it to a PC again and check the USB mode your N7 is in.
If it is, or if you can make it work in, USB mode 9006 then follow this post. The linked N7 image is from my 32GB Hynix but you can use it to restore boot on any eMMC and adjust it later. While you do not see the partitions anymore, you may be able to access the device to restore the image.
If it is USB mode 9008 then your only recovery option is JTAG or hardware programming of the eMMC chip.
Good luck, it is still fixable :good:
the device still appears completly lifeless however i am able to get the device to show up as
Code:
Bus 002 Device 064: ID 05c6:9008 Qualcomm, Inc. Gobi Wireless Modem (QDL mode)
but im not sure how to go about getting fastboot yet, i get that i can dd an image to it i guess but im pretty sure i only have the 16GB not the 32, wjich i cant seem to find.
After playing with it for a couple hours and reading the entire Unbricking thread, the spot im stuck at now is the 9008-9006 mode switch. I have the QPST software and drivers working right and i get the NAK error but i follow the directions and cant get it into 9006 mode...
LineageOS update of May 24 2017 bricked my Nexus 7 2013 also.
Can't even use the Nexus Root Toolkit to recover. Always get stuck in the Google symbol.
Can enter into recovery, but it takes 15 minutes. And the directory structure showed is all empty.
Rebooting it show some errors saying that the partition table is empty.
"OEM Device Info" of NRT shows that the equipment is now locked also.
Have no idea of what to do. Can't even install the SO again.
There is a thread on "general" that seems to deal with related problems:
https://forum.xda-developers.com/nexus-7-2013/general/rd-thread-trying-to-solve-ota-brick-t3117495
ramon.hugo said:
LineageOS update of May 24 2017 bricked my Nexus 7 2013 also.
Can't even use the Nexus Root Toolkit to recover. Always get stuck in the Google symbol.
Can enter into recovery, but it takes 15 minutes. And the directory structure showed is all empty.
Rebooting it show some errors saying that the partition table is empty.
"OEM Device Info" of NRT shows that the equipment is now locked also.
Have no idea of what to do. Can't even install the SO again.
There is a thread on "general" that seems to deal with related problems:
https://forum.xda-developers.com/nexus-7-2013/general/rd-thread-trying-to-solve-ota-brick-t3117495
Click to expand...
Click to collapse
When you can boot into recovery you are good to go. Use a pendrive and an otg cable and flashthe rom from pendrive.
Already tried that ... Also impossible.
Try this way,
Connect to Computer
Use NRT then pess root, your Device will restart in TWRT then you can put the file in and reinstall.
You may be running into flash wear issues. This device is about 4 years old at this point, a similar thing started happening to the 2012 models. Don't blame the ROM, blame the NAND chip in your tablet.
I have a busted USB port so prefer to recharge via wireless. Sometimes wireless charging keeps disconnect and reconnecting if it's on so I need to shut it off.
I did that and now it just hangs at the Google screen as well.
If I hold Vol down I dont get twrp but the general bootloader. Any choice seems to just reboot it.
I think I'm screwed as well.
Prior to this my pc doesnt detect via USB at all, just charges it.

emmc error? Suddenly black screen

Hello guys,
I'm using my 3T carefully as a media device just at home. But suddenly I couldn't control my system anymore. I could swipe and open settings, but couldn't turn on WiFi or start any app. So I restarted my phone but it never booted. Screen is completely black and even charging leds doesn't work anymore. I can't access TWRP recovery. I used the button combinations ... Nothing! But when I connect my phone to my computer windows plays the typical sound like when you plug in an USB stick. Windows sayed once that the connected device is buggy and cannot be detected. Nothing more. When I reconnect no more message or pop up again.
Has anyone any idea? Thanks a lot!
slev!n said:
Hello guys,
Screen unit is completely dead. It even doesn't show a charging led anymore. I can't access TWRP recovery. I used the button combinations ... Nothing! But when I connect to the computer windows registers my phone by playing the 'connected sound'. But nothing more. Has anyone any idea or know where I can discuss my issue? Thanks a lot!
Click to expand...
Click to collapse
That's weird. Sounds like your screen (if not more parts) died. Hardware issue? Water damage? Might be better to contact a repair center since if you can't even access recovery I doubt the problem is related to LOS. Never happened on my 3T over the 4 years I've had it, though it's had its fair share of damage.
knpk13 said:
That's weird. Sounds like your screen (if not more parts) died. Hardware issue? Water damage? Might be better to contact a repair center since if you can't even access recovery I doubt the problem is related to LOS. Never happened on my 3T over the 4 years I've had it, though it's had its fair share of damage.
Click to expand...
Click to collapse
But before my restart I could use the screen it just looks like something in the system doesn't work: could type on apps and settings, it just doesn't open or pop back. And the charging led is not part of the screen unit as I know.... If I could take out the battery I would do it. It often works in other phones. But I don't have tools here for my 3T. :/
knpk13 said:
That's weird. Sounds like your screen (if not more parts) died. Hardware issue? Water damage? Might be better to contact a repair center since if you can't even access recovery I doubt the problem is related to LOS. Never happened on my 3T over the 4 years I've had it, though it's had its fair share of damage.
Click to expand...
Click to collapse
slev!n said:
But before my restart I could use the screen it just looks like something in the system doesn't work: could type on apps and settings, it just doesn't open or pop back. And the charging led is not part of the screen unit as I know.... If I could take out the battery I would do it. It often works in other phones. But I don't have tools here for my 3T. :/
Click to expand...
Click to collapse
slev!n said:
Hello guys,
I've got an issue and don't know if it belongs to the build or not. I'm on the last build with my 3T and today after charging my phone I couldn't turn on WiFi or start any app. It just didn't open. So I restated my phone but it never booted. Screen unit is completely dead. It even doesn't show a charging led anymore. I can't access TWRP recovery. I used the button combinations ... Nothing! But when I connect to the computer windows registers my phone by playing the 'connected sound'. But nothing more. Has anyone any idea or know where I can discuss my issue? Thanks a lot!
Click to expand...
Click to collapse
Sounds to me like an hardware error involving (but not necessarily limited to) emmc access. That would explain, why the parts still in ram (like homescreen) were still working but apps won't start anymore, as well as the blank screen on device startup (even the logo needs emmc access to read the logo partition).
Try unbricking (I'm afraid your pc won't find the device, if my guess is correct), if that fails: rma or repair center.
slev!n said:
Has anyone any idea or know where I can discuss my issue? Thanks a lot!
Click to expand...
Click to collapse
here
You need to be more spesific about the connected sounds, does it shows up on device manager or else, in detail (with SS/photos etc to prevent misjudge)
150208 said:
here
You need to be more spesific about the connected sounds, does it shows up on device manager or else, in detail (with SS/photos etc to prevent misjudge)
Click to expand...
Click to collapse
Thanks, I'll create a post there. Just one more post here:
I used this phone just carefully at home as a media device. So this brick came totally out of nowhere. When I connect my bricked 3T now to my computer it makes the typical sound like when you plug in an USB stick. Windows sayed once that the connected device is buggy and cannot be detected. Nothing more. When I reconnect no more pop up again.
slev!n said:
I'll create a post there.
Click to expand...
Click to collapse
When you've created that post ask the moderators to move this complete conversation from this thread to the newly created on in the help forum, please. This helps to keep this thread readable and searcheble.
For your trouble: if you can't boot rom, recovery nor fastboot mode, it doesn't make sense to debug the usb connection: what should the pc connect to if none of the three is bootable? There is just nothing up to connect to. That's why I recommended unbrick tool - if that fails rma or go to a repair center.
Hello guys,
I'm using my 3T carefully as a media device just at home. But suddenly I couldn't control my system anymore. I could swipe and open settings, but couldn't turn on WiFi or start any app. So I restarted my phone but it never booted. Screen is completely black and even charging leds doesn't work anymore. I can't access TWRP recovery. I used the button combinations ... Nothing! But when I connect my phone to my computer windows plays the typical sound like when you plug in an USB stick. Windows sayed once that the connected device is buggy and cannot be detected. Nothing more. When I reconnect no more message or pop up again.
Has anyone any idea? Thanks a lot!
Post SS of the device manager after connecting the phone to the PC
150208 said:
Post SS of the device manager after connecting the phone to the PC
Click to expand...
Click to collapse
It doesn't make sense to debug the pc conmection: if neither recovery, fastboot mode nor rom is bootable, there is nothing up and running the pc can connect to (maybe unbrick tool can still access the msm hardware directly, but that's not sure - confirmation is still missing from @slev!n). I'm writing this the second time.
If none of recovery, fastboot mode nor rom is bootable, the last resource before rma or repair center is unbrick tool. I'm writing this the third time!
@slev!n: please ask the moderators to move the existing conversation to thos from the los16 thread here. If all postings have moved, ask the moderators to move this thread from op3/help to op3t/help.
@nvertigo67 I wanted to do so and was searching how to contact moderators but couldn't find it in my XDA app. Maybe someone can give me a hint? I'm kind of new on xda... Thanks!
@150208 And as I wrote: it's not possible to get any kind of message on windows anymore. Just the sound appears when I connect and disconnect.
@nvertigo67 I was also following your advice to use the unbrick tool. I followed the steps on oneplus forum:
https://forums.oneplus.com/threads/guide-oneplus-3-3t-unbrick.531047/
When it comes to the integrity check windows doesn't accept "TESTSIGNING ON". And so windows doesn't recognise my phone in the device manager for the next steps.
And I guess RMA or repair centres are super expensive. I don't know if it's worth it? I thought about buying a device with a broken screen on eBay and try to change the motherboard...
Log in with a web browser locate each posting of the comversation. For each posting in question use the little triangle icon at the botom on the left side, report each posting, set non-urgent and pit the link of this thread together with something like "Please move this posting to the linked thread, thanx in advance".
For disabling driver signature enforcement try method 2. from this post: http://maxedtech.com/about-testmode/
Most of tbe time xda postings are more reliable and more current then the Oneplus forums: https://forum.xda-developers.com/oneplus-3/how-to/op3-collection-unbrick-tools-t3896722, https://forum.xda-developers.com/oneplus-3/how-to/op3-collection-unbrick-tools-t3896722
slev!n said:
[MENTION=4405529]i thought about buying a device with a broken screen on eBay and try to change the motherboard...
Click to expand...
Click to collapse
If you already have a thought why do you keep asked here though? If you want another possible solution, at least put an effort to provide the information needed when asked by the one who tried to help you
I'm not into a guessing games, so i'm out
nvertigo67 said:
It doesn't make sense to debug the pc conmection: if neither recovery, fastboot mode nor rom is bootable, there is nothing up and running the pc can connect to (maybe unbrick tool can still access the msm hardware directly, but that's not sure - confirmation is still missing from @slev!n). I'm writing this the second time.
If none of recovery, fastboot mode nor rom is bootable, the last resource before rma or repair center is unbrick tool. I'm writing this the third time!
Click to expand...
Click to collapse
There are 2 possible reason when the phone is not detected by the computer, driver or hw problem.
To know it i need to look at the device manager status
If it's hw problem, i'll try not to jump on MB conclussion yet, since there are still another possible reason
When talking about MSM, you need to make sure it's available first on the device manager
Otherwise, it's a waste of data for downloading the tool in these human malware days
Oh yes, the msm guide is quite lag behind. You don't need to boot into test mode anymore with the current driver for qualcomm
I flashed a lot qualcomm devices with w10 without the need to boot into test mode
150208 said:
There are 2 possible reason when the phone is not detected by the computer, driver or hw problem.
To know it i need to look at the device manager status
Click to expand...
Click to collapse
True, if only "win is not detecting the device" is known. Since we know much more (neither rom, recovery nor fastboot mode are bootable), the debugging of the usb driver doesn't make sense. The msm tool uses it's own drivers to detect the hardware BEFORE one of the three is booted. If the msm tool has unbricked the device and booting recovery, rom and/or fastboot, you can start debugging the "nprmal" qc usb drivers, if still necessary.
For the costs of rma: maybe it's expensive - maybe oneplus will be obliging... Since you don't relay on the device as your daily driver, you can ask for an estimate of costs - so you can decide if it's worth the costs.
nvertigo67 said:
True, if only "win is not detecting the device" is known. Since we know much more (neither rom, recovery nor fastboot mode are bootable), the debugging of the usb driver doesn't make sense. The msm tool uses it's own drivers to detect the hardware BEFORE one of the three is booted. If the msm tool has unbricked the device and booting recovery, rom and/or fastboot, you can start debugging the "nprmal" qc usb drivers, if still necessary.
Click to expand...
Click to collapse
Wait, I fail to see your explanation in line with mine. I want to start debug it on the windows side, but you seems to see it on the phone side.
Do you realize there are cases where everything is black/nothing responding but it's still detected by computer? That when emmc is corrupt, but repairable if you format it.
150208 said:
Do you realize there are cases where everything is black/nothing responding but it's still detected by computer? That when emmc is corrupt, but repairable if you format it.
Click to expand...
Click to collapse
If neither fastboot mode nor recovery is bootable, you need the msm interface to refprmat somethimg on emmc. In other words: if there's no recovery nor fastboot, you can't utilize adb or fastboot to reformat or to fix the partition table. You need something to connect to to do the fixing, but without recovery or fastboot, there is nothing adb or fastboot can conmect to, no matter of the driver status on the pc/win side. Once this is fixed (at least fastboot mode is up again) you can utilize the "normal" usb connection again.
What do you want to do with the usb connection, if neither fastboot mode nor recovery is up amd running? What is your suggested next step, if the device is recognized? What should the pc recognize if neither fastboot nor adb os an option? Which command or procedure will fix the emmc?
nvertigo67 said:
If neither fastboot mode nor recovery is bootable, you need the msm interface to refprmat somethimg on emmc.
Click to expand...
Click to collapse
Yes, there are other tools but i'm not gonna bother since it's paid
nvertigo67 said:
In other words: if there's no recovery nor fastboot, you can't utilize adb or fastboot to reformat or to fix the partition table. You need something to connect to to do the fixing, but without recovery or fastboot, there is nothing adb or fastboot can conmect to, no matter of the driver status on the pc/win side.
Click to expand...
Click to collapse
This is the part where you're incorrect. There are 4 status when a device plugged into the pc.
1. detected and driver is loaded
2. detected and driver isn't loaded
3. detected but not recognized
4. no sign at all
1 and 2 is sw problem, 3 and 4 is hw problem
In order for MSM to do it's job, you need to have either problem no 1 or 2 with qualcomm qloader 9008 driver already or later detected in devmanager
So it's important to know the driver status
OP states there was sounds coming then nothing, which mean it's either 2 or 3, more like 3 but again i repeating myself i don't like guessing games
I don't understand the part why you're explaining/asking about fastboot recovery or etc, his phone is on dead state, nothing-literally-no sign of life unless he plug it to the pc and then it making sounds for the first time,
Why do you even bother thinking about it?
nvertigo67 said:
Which command or procedure will fix the emmc?
Click to expand...
Click to collapse
No procedure will fixed his phone since there are no enough information
I think your other question should be already answered. If else, i don't know what to say anymore.
150208 said:
nvertigo67 said:
In other words: if there's no recovery nor fastboot, you can't utilize adb or fastboot to reformat or to fix the partition table. You need something to connect to to do the fixing, but without recovery or fastboot, there is nothing adb or fastboot can conmect to, no matter of the driver status on the pc/win side.
Click to expand...
Click to collapse
This is the part where you're incorrect.
Click to expand...
Click to collapse
If so, please explain how you can format a partition or fix the partition table if neither fastboot mode nor recovery (or a rooted system for that matter) is bootable.
@slev!n: please give a screenshot of the device manager to @150208. I'm too curious to learn how to fix a broken emmc without recovery nor fastboot mode.
Thank you so far!
I dont want to bother someone. Just thinking about further options thats why I wrote my thought about replacing the motherboard down.
I 'm in test mode now and I did this:
"Step 4 :- Press the power button for 40 seconds to turn off the phone.
Step 5 :- Press only volume up button for a few seconds and while keeping it pressed,connect your phone to PC.Keep volume up pressed till your device shows in device manager as [Unknown Device,QHUSB_BULK (under Unknown Devices) or Qualcomm HS USB (under COMs and Ports)]."
But no device is listet in my device manager. But in msmtool my phone is connected. Does it mean I cann't continue with this tool somehow?
slev!n said:
But no device is listet in my device manager. But in msmtool my phone is connected. Does it mean I cann't continue with this tool somehow?
Click to expand...
Click to collapse
The pic is from msm tool, not the device manager. No unknown device in device manager?

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