[Q] Stuck at Bootloop after Lollipop Flash Attempt - Nexus 7 Q&A, Help & Troubleshooting

I've been researching this problem all night/morning and I'm at my wits end Hoping you guys can help me think through it..
First things first: I'm using a macbook, with the most updated version of the SDK platform tools. My nexus 7 was already rooted and flashed with a 4.4.2 ROM.
I tried to flash the Lollipop factory image onto my 2012 Nexus 7 Wifi yesterday by running './flash-all.sh'. First few times, it errored out (alternating between 'broken pipe' errors and fastboot just flat out not seeing my device). Finally, after rebooting my laptop and continuously running 'fastboot devices' until a device Id actually turned up, I managed to run ./flash-all.sh
The script progressed, errored out on flashing the boot loader, successfully erased pretty much everything including recovery, flashed the system image, and then failed while trying to validate the bootloader version (since it had errored out).
Now I'm stuck in a situation where 'fastboot devices' does not return anything (I've tried 3 different USBs and every single port on 2 different macbook + a linux tower) and I can't get into recovery because it errors out with a 'boot failed' message over the 'Google' icon screen.
I've ruled out the possibility of a driver issue since I'm on a macbook, although I'm going to try installing hte SDK onto my Windows 7 tower later tonight, just to see what happens. Can anyone think of anything else I can try to recover my Nexus 7? I dont even care about flashing Lollipop will do haha.. even stock is fine.

Related

Help: Fastboot Not Receiving Files

Wanting to go back to a factory image on my Nexus 10 so that I can take the update for Android 4.4. Being the lazy guy that I am, I tried to take the easy way out and used the WugFresh tool to go back to the factory image and unroot. It didn't work. Now I have no recovery or system so I can only boot into the bootloader. When I try and flash a new bootloader the command prompt just sits on "sending boot" and never gets there. I am noticing that on the Nexus when I initiate the command a cyan colored box comes up that says "FASTBOOT STATUS - DATA00140000" Sometimes the numbers after the data part are different but that's it. I'm not sure how to fix it because I can't send files to it. Any help would be appreciated.
EDIT: completely uninstalled and reinstalled (for the second time) adb, fastboot, and universal drivers and then rebooted my machine Nexus started connecting just fine.
jcrss13 said:
Wanting to go back to a factory image on my Nexus 10 so that I can take the update for Android 4.4. Being the lazy guy that I am, I tried to take the easy way out and used the WugFresh tool to go back to the factory image and unroot. It didn't work. Now I have no recovery or system so I can only boot into the bootloader. When I try and flash a new bootloader the command prompt just sits on "sending boot" and never gets there. I am noticing that on the Nexus when I initiate the command a cyan colored box comes up that says "FASTBOOT STATUS - DATA00140000" Sometimes the numbers after the data part are different but that's it. I'm not sure how to fix it because I can't send files to it. Any help would be appreciated.
EDIT: completely uninstalled and reinstalled (for the second time) adb, fastboot, and universal drivers and then rebooted my machine Nexus started connecting just fine.
Click to expand...
Click to collapse
I the same happens but with Android L. and you say you fix reinstalling drivers?

2012 N7 stuck in bootloop/bricked. Unlocked but can't recover/flash images

The title says most of my situation. I've had this since 2012 and some time early last year it just up and stopped booting into android. I have no idea what happened because my girlfriend was using it at the time and she swears she didn't change anything.
Anyways, the bootloader is locked and I have tried to go to recovery and factory reset with no luck. Wiped cache and did nothing as well. I am seeing that windows 7 is sort of recognizing the device. It shows up under device manager as "Android Bootloader Interface"
I've updated the USB drivers and installed ADB as well. When checking the command prompt for ADB Devices, it shows nothing.
I installed Wugs toolkit and it won't even find the nexus either. There has to be SOMETHING that can be done in this situation right?
:EDIT: I was able to unlock it using fastboot but I still can't get it to be found by anything else.
I can get it recognized using the fastboot command prompt, but I can't execute any commands in it. Everything like "fastboot flash boot boot.img" just returns a FAILED message with either invalid argument or no such address or device.
What I am trying to do is just recover it and start using it again. Of course I want to put Android 5.0 on it, but I would be okay with anything as long as it boots, really.
:EDIT: I was actually able to get it to work. I have no idea what specifically had fixed it, but I uninstalled and reinstalled the drivers a few times and ran fastboot and was able to wipe it and install Android 5.0! It was running great!

I know it's the wrong forum, but....please take a look

I really need the help of one or more of this forums intelligent minds. As I'm sure you'll see, I've posted this in the QA forum, but have had no hits so far....thus the reason for posting here.
So, about 6mos ago, my Nexus 10 stopped working and I couldn't get it back working...eventually moved onto a new tablet, which now I hate....
Anyway, I figured I'd head back to my N10 because I loved it. However, one of the reasons I left it was because it was stuck in bootloop and I was pretty sure it was bricked.
The bad news, I have followed MANY, if not ALL, of the suggestions on getting it back, I just cannot get it to boot. The good news, fastboot connects with the tablet. So, some specifics:
The tablet WILL boot into fastboot and I can send commands and the tablet is unlocked (also, I believe someone said they had issues because they had an older version of ADB and Fastboot. I'm pretty sure I downloaded the 'most current' version 1.4.3). So, with that, I was able to do the fastboot erase functions, such as cache, userdata, system, etc... and then also load the bootloader (mantafm01) and also send the stock .zip file (image-mantaray-....) and the tablet appears to load everything fine. Thumbs up, right? However, when it reboots it stops at the 'erasing' android bot and will not pass that. I left the tablet in that state for a few minutes all the way up to 3 days...no success.
I also tried the above using Wugfresh only to have the same thing occur. So, basically, I am stuck at 'erasing' and I don't know what to do. I feel confident that the tablet has the ability to be brought back to life, I just cannot figure out how/why all of the attempts lead to the same issue.
What I can also tell you is that while fastboot 'sees' the tablet, the tablet does not appear as a device in "My Computer" like it normally did when connecting via USB. I am using the original USB cable and have tried on multiple computers, all to no avail. I've downloaded/installed the drivers, as instructed on many links. Also, while I can get to the 'Recovery Mode' by pressing Power, Volume Up, Volume Down, if I choose "Recovery Mode" on the tablet, it reboots and goes to the 'erasing' screen. I have tried flashing TWRP on the tablet using fastboot as well. And, sometimes, not all the time, the TWRP blue/black screen appears but it will not progress past that screen (i.e., it doesn't go into recovery).
So, if you can, please help. I believe I have followed all of the instructions, but I have to be missing something or not following something correctly. I'm stoked that it looks like it's only soft-bricked, I just can't get it un-bricked.
Thanks in advance! I'm at my wits' end
Try fastbooting a recovery like TWRP thati s updated then flash a rom.
disclaimer: I might be no help at all!
You have fastboot -- go learn all the fastboot commands... you need to know the tools and figure a solution!
erase... hmm? why? What about factory reset? I see you are not using LOS 13 but stock image... need root? Basically, I would factory reset/wipe sdcard, then install recovery (TWRP) [okay, so first you would need to use fastboot to install custom recovery)...THEN, push (fastboot an image.zip (LOS or stock) to sdcards, install, and reboot!
Good to have WUG... another tool in the chest (I have never seen it or used it)
Ok, so one clue is that if your computer cannot see it, that says to me RED FLAG... ADB drivers? but you say fastboot works, hmm... I think this is the problem... Koush's universal ADB drivers? official Google drivers? Could these help!
Erasing screen? Hmm...
I would say, for the hell of it, try flashing different ROMs, Recoveries, and Drivers.... you are basically trying to...
Factory Reset/wipe SDcard [system, cache, ... everything], Flash custom recovery (optional), then, some how (fastboot or mycomputer) get an image on to /sdcard, then, install, then, reboot!
Good luck!
luckyheel said:
I really need the help of one or more of this forums intelligent minds. As I'm sure you'll see, I've posted this in the QA forum, but have had no hits so far....thus the reason for posting here.
So, about 6mos ago, my Nexus 10 stopped working and I couldn't get it back working...eventually moved onto a new tablet, which now I hate....
Anyway, I figured I'd head back to my N10 because I loved it. However, one of the reasons I left it was because it was stuck in bootloop and I was pretty sure it was bricked.
The bad news, I have followed MANY, if not ALL, of the suggestions on getting it back, I just cannot get it to boot. The good news, fastboot connects with the tablet. So, some specifics:
The tablet WILL boot into fastboot and I can send commands and the tablet is unlocked (also, I believe someone said they had issues because they had an older version of ADB and Fastboot. I'm pretty sure I downloaded the 'most current' version 1.4.3). So, with that, I was able to do the fastboot erase functions, such as cache, userdata, system, etc... and then also load the bootloader (mantafm01) and also send the stock .zip file (image-mantaray-....) and the tablet appears to load everything fine. Thumbs up, right? However, when it reboots it stops at the 'erasing' android bot and will not pass that. I left the tablet in that state for a few minutes all the way up to 3 days...no success.
I also tried the above using Wugfresh only to have the same thing occur. So, basically, I am stuck at 'erasing' and I don't know what to do. I feel confident that the tablet has the ability to be brought back to life, I just cannot figure out how/why all of the attempts lead to the same issue.
What I can also tell you is that while fastboot 'sees' the tablet, the tablet does not appear as a device in "My Computer" like it normally did when connecting via USB. I am using the original USB cable and have tried on multiple computers, all to no avail. I've downloaded/installed the drivers, as instructed on many links. Also, while I can get to the 'Recovery Mode' by pressing Power, Volume Up, Volume Down, if I choose "Recovery Mode" on the tablet, it reboots and goes to the 'erasing' screen. I have tried flashing TWRP on the tablet using fastboot as well. And, sometimes, not all the time, the TWRP blue/black screen appears but it will not progress past that screen (i.e., it doesn't go into recovery).
So, if you can, please help. I believe I have followed all of the instructions, but I have to be missing something or not following something correctly. I'm stoked that it looks like it's only soft-bricked, I just can't get it un-bricked.
Thanks in advance! I'm at my wits' end
Click to expand...
Click to collapse
Why not try this
I have not had this problem with my Nexus 10 but I did once with my Nexus 7 and it may help you.
Instead of trying to flash TWRP and run it (which is not working for you) why not boot into a temporary copy of TWRP and then work from that? To flash TWRP normally (persuming you had renamed the img file to TWRP which makes it easier) you would enter 'fastboot flash recovery twrp.img'. Instead of doing that type 'fastboot boot twrp.img'. This boots into TRWP and from there you will be able run all the options and from there flash TWRP and other images as normal.
If you are having problems with drivers have you used 'USBDeview' ? Run this as Administrator and delete all references to any phone or tablet USB driver and particularly look for devices with Vendor ID '18d1' or '04e8'. Just select them, right click on them and select 'Uninstall Selected Devices'. When they are all cleared reboot your computer and plug your tablet in and it should install the correct driver.
Another option I used successfully with a Nexus 7 in a boot loop was to connect it while running Linux. I don't have a Linux on a computer so I installed one in 'Oracle VM VirtualBox' I don't know Linux but after Googling for help I installed Peppermint Linux and then ADB for Linux. I downloaded the 'TWP' image into a folder in Linux and any other images I wanted. Connect your tablet to the USB port and then on the top menu in VirtualBox select 'Devices' then 'USB' and tick the option which shows your tablet. I then went into what we call a command prompt in Windows but which they call 'Terminal'. Then type 'ADB devices' and if you see it on the list use ADB instead of fastboot. As I mentioned my Nexus 7 was in a boot loop so I typed 'ADB wait-for-device' and as soon as it looped to a point where ADB could see it then the looping stopped and I could flash the images and recover the tablet.
All the best. I hope you are successful.
As long as you can get into bootloader mode, your good.
NOW
If you can't get into boot loader mode? as far as I know...
You're ****ed.
Unless you want to set up usb boot (might not work on Exynos, idk, this is magic to me) and solder the connectors and flash it like they do in factories. That's next level **** too, and considering an N10 is 100$ on amazon you're better off just grabbing a new one.

Essential Phone Half-Bricked?

Hello everyone,
I have a very peculiar problem with getting my Essential Phone to work again. It was lying around for roughly two years as I switched to another phone. Seeing as one of my relatives needs a new phone and has really low requirements I thought I could try to set it up again. I downloaded the official drivers again (Version 1.0.0 I think) as well as the last official release of fastboot images (February 2020).
Before I switched to a new Phone I had the Essential running with Lineage OS and remember wiping it with fastboot -w after I got the new device.
Now when I try to flash anything the device won't respond. It shows up when fastboot devices is used in the bootloader, but all fastboot commands get no answer whatsoever. I then switched from the official fastboot drivers to the latest android drivers which then gave me the sending x to y message when I try to flash anything, but nothing actually happens.
Interestingly enough, I can reboot to bootloader just fine and the Lineage Recovery is still accessible eventhough it shows an:
E: Failed to bind mount /mnt/staging/emulated/media/0 on storage/emulated: No such file or directory
on the bottom which leads me to believe that my device partitions may be corrupted outside of the recovery partition and the phone is bricked. In recovery adb commands can be used and I can reboot to bootloader for example.
When trying to sideload via the "Appy Update" function of the Lineage Recovery, I get an:
Error applying update: 26 (ErrorCode::kDownloadMetadataSignatureMismatch))
everytime. I tried different methods and Roms but nothing worked so far.
Can anyone help me with regards to bypassing signature verification entirely or point me in the direction of another solution?
Thanks for reading, I hope you have a nice day!
McMeth said:
Hello everyone,
I have a very peculiar problem with getting my Essential Phone to work again. It was lying around for roughly two years as I switched to another phone. Seeing as one of my relatives needs a new phone and has really low requirements I thought I could try to set it up again. I downloaded the official drivers again (Version 1.0.0 I think) as well as the last official release of fastboot images (February 2020).
Before I switched to a new Phone I had the Essential running with Lineage OS and remember wiping it with fastboot -w after I got the new device.
Now when I try to flash anything the device won't respond. It shows up when fastboot devices is used in the bootloader, but all fastboot commands get no answer whatsoever. I then switched from the official fastboot drivers to the latest android drivers which then gave me the sending x to y message when I try to flash anything, but nothing actually happens.
Interestingly enough, I can reboot to bootloader just fine and the Lineage Recovery is still accessible eventhough it shows an:
E: Failed to bind mount /mnt/staging/emulated/media/0 on storage/emulated: No such file or directory
on the bottom which leads me to believe that my device partitions may be corrupted outside of the recovery partition and the phone is bricked. In recovery adb commands can be used and I can reboot to bootloader for example.
When trying to sideload via the "Appy Update" function of the Lineage Recovery, I get an:
Error applying update: 26 (ErrorCode::kDownloadMetadataSignatureMismatch))
everytime. I tried different methods and Roms but nothing worked so far.
Can anyone help me with regards to bypassing signature verification entirely or point me in the direction of another solution?
Thanks for reading, I hope you have a nice day!
Click to expand...
Click to collapse
I've been reading around a little, it seems like it could be a recovery issue? try the official lineage recovery if you're not already. If you can get fastboot working at all try to reflash the stock rom and go from there.
I had a similar problem. Use a windows computer with the essential drivers (you can download from reddit) and use the official cable
DO NOT use the cable supplied with the Essential phone for data transfer, it is likely to brick your phone. Use a high quality one from a reputable manufacturer!

what can I do?

may throw my nexus in the bin...
was already having trouble with trying to connect to windows using usb but kept reconnecting
connected to mint successfully and flashed with twrp
however any twrp flo were giving mounting errors and rebooting, i did try few other versions but was having same issue
so i tried 2.8, now my nexus boots to recovery mode
twrp logo sits still for 5 seconds and then screen flashes black and then shows the logo again, looping
(it surely is still having mounting problems)
adb devices show nothing neither does fastboot
anyway never experienced a device with various problems
like sensors stopping out of nowhere and also taking ages to fully charge
Did it run fine on the original firmware?
V0latyle said:
Did it run fine on the original firmware?
Click to expand...
Click to collapse
stock factory reset worked normally
ignoring what i stated at the end it was running fine
android 6.0.1 kernel 3. something

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