Problems unlocking, not finding device.. - Android Q&A, Help & Troubleshooting

Hi good people of the internet,
I recently brough a brand new ZTE Blade Vec 4G and i wanted to replace the Android OS that came with the device before i start using it, but i hit a snag when trying to run the shell commands via USB.
I have been trying via my Ubuntu machine, but i also tried allitle in Windows, but i got the same result there.
So far ive been following this list (could not post the links, but its via the main "Installing Ubuntu for Devices" page:
Unlock the Android device
To install Ubuntu, you must first “unlock” the Android device bootloader.
Warning: Unlocking deletes all data from the device, including apps and other data. You may want to create a backup first.
You must first have enabled USB Debugging in the Android OS.
Boot the device into the Android bootloader:
$ adb reboot bootloader
Tip: When the device is booted into the bootloader the screen displays the green Android robot lying on its back with its front panel open and a highlighted Start menu item.
Verify the device is connected to your Ubuntu Desktop as follows:
$ fastboot devices
025d138e2f521413 fastboot
Unlock the device as follows:
$ sudo fastboot oem unlock
Accept the terms of unlocking displayed on the Android device.
Reboot the device to Android as follows:
$ fastboot reboot
Complete the first use Android setup steps, entering minimal information: Android and its data is about to be deleted during the Ubuntu install.
Click to expand...
Click to collapse
Ive only made it to highlighted point, but when i hit "sudo fastboot oem unlock" it just stops on < waiting for device >, and when i try to find the device i cant see it when in "Android system recovery mode".
Any help would be great as ive spent near 5 hours trying to do this now

I don't think it's possible to unlock the bootloader on your device yet. From what I've read, even the adb reboot bootloader method does not actually get you into fastboot mode. Replacing the OS with Ubuntu will not be an option because of this as well as other reasons.

es0tericcha0s said:
I don't think it's possible to unlock the bootloader on your device yet. From what I've read, even the adb reboot bootloader method does not actually get you into fastboot mode. Replacing the OS with Ubuntu will not be an option because of this as well as other reasons.
Click to expand...
Click to collapse
Thank you for the reply. So how can i remove Android at all then? would it be better to try something like CyanogenMod or MIUI? I have also been looking at Firefox OS, but if i cant remove Android, then i cant really do much at all..
Just saw this thread:
http://forum.xda-developers.com/general/help/soshphone-4g-zte-blade-vec-root-t2810210/page1
Guess i just need to make do with the unrooted Android for now..

Pretty much stuck for awhile. There might never be an option for it. Many phones never get the chance to have different OSes or even custom versions of Android. Hopefully that's not the case, but it's not uncommon.

Related

driver trouble

I bricked my opx I was able to bring it to life but the ****ty recovery doesn't let me flash anything so I am stuck no OS and boot loader locked and my computer isn't recognizing the dam thing I have installed SDK tools and google USB drivers but for some reason I am not able to get the Dan thing to connect right when I try via adb sideload it starts then the phone says fail...... Please help I am love this device and brand but I am getting really mad I am about a week in to trying to fix this but no luck I am using windows 10 also
Sorry to say, but you gotta follow this thread.
[GUIDE] Mega Unbrick Guide for A Hard Bricked OnePlus X
Since you may ignore the other thread you started or it may get deleted I'll copypasta here:
We can try to unlock the bootloader as it is now, but that doesn't usually work unless you checked "OEM Bootloader Unlock" in the system settings before the device was bricked. Hindsight is 20/20 but as a word of advice for the future, never ever mess with a device unless you know the bootloader is unlocked or have made it possible to unlock it later without the OS. It also doesn't void the warranty on OnePlus devices to do so.
So first things first, the recovery will normally only flash the stock ROM as provided by OnePlus. You can download that file from here: http://downloads.oneplus.net/2016-04...xygenOS_2.2.1/. For future reference, when the bootloader on a device is locked the bootloader will not boot any software that isn't complete stock. If you try and change the OS or Recovery and it's not stock, the bootloader will not load it. This goes for any Android device.
If ADB sideload is working for you but hasn't been installing on the device (as-in, it sends the file but the device fails to install it) then you should be able to just sideload the zip file. It'll be slow though since it's about 780megs. If it doesn't send it then you can try using the ADB "push" command which is like copy and paste. You "push" the file from your computer to a folder on the device (you can see what folders are available using "adb shell" and then navigating with CD "change directory" and LS "list". If you can't find the sdcard you may have to mount it). Once again, it'll push slowly but once it does you should be able to install it from the internal memory.
If that works and it boots, go to Settings -> About Phone and tap the Build Number until it says you've enabled developer settings. Go to Settings -> Development and turn on "OEM Unlocking". Power the phone down. Hold the Power key and Volume Down until it shows the OnePlus logo and "Fastboot". I believe if you have the Android SDK you have the Fastboot program (it's commandline like ADB). Open CMD or Powershell and as long as it's the only device plugged into the computer you should be able to simply type "Fastboot oem unlock" and it will unlock the bootloader. Once again, it doesn't void your warranty.

opx issues

I bricked my opx I was able to bring it to life but the ****ty recovery doesn't let me flash anything so I am stuck no OS and boot loader locked and my computer isn't recognizing the dam thing I have installed SDK tools and google USB drivers but for some reason I am not able to get the Dan thing to connect right when I try via adb sideload it starts then the phone says fail...... Please help I am love this device and brand but I am getting really mad I am about a week in to trying to fix this but no luck I am using windows 10 also
We can try to unlock the bootloader as it is now, but that doesn't usually work unless you checked "OEM Bootloader Unlock" in the system settings before the device was bricked. Hindsight is 20/20 but as a word of advice for the future, never ever mess with a device unless you know the bootloader is unlocked or have made it possible to unlock it later without the OS. It also doesn't void the warranty on OnePlus devices to do so.
So first things first, the recovery will normally only flash the stock ROM as provided by OnePlus. You can download that file from here: http://downloads.oneplus.net/2016-04-02/opx/OnePlus_X_OxygenOS_2.2.1/. For future reference, when the bootloader on a device is locked the bootloader will not boot any software that isn't complete stock. If you try and change the OS or Recovery and it's not stock, the bootloader will not load it. This goes for any Android device.
If ADB sideload is working for you but hasn't been installing on the device (as-in, it sends the file but the device fails to install it) then you should be able to just sideload the zip file. It'll be slow though since it's about 780megs. If it doesn't send it then you can try using the ADB "push" command which is like copy and paste. You "push" the file from your computer to a folder on the device (you can see what folders are available using "adb shell" and then navigating with CD "change directory" and LS "list". If you can't find the sdcard you may have to mount it). Once again, it'll push slowly but once it does you should be able to install it from the internal memory.
If that works and it boots, go to Settings -> About Phone and tap the Build Number until it says you've enabled developer settings. Go to Settings -> Development and turn on "OEM Unlocking". Power the phone down. Hold the Power key and Volume Down until it shows the OnePlus logo and "Fastboot". I believe if you have the Android SDK you have the Fastboot program (it's commandline like ADB). Open CMD or Powershell and as long as it's the only device plugged into the computer you should be able to simply type "Fastboot oem unlock" and it will unlock the bootloader. Once again, it doesn't void your warranty.

Rooting Insignia tablet NSP10A7100 with android 6.0.1 marshmallow

Iv'e been looking around for a root for my device and I can't seem to find a root. Is there even a root for it yet?
Guys come on. Its been almost 4 months now and still no root. I just want to delete all the bloat ware off my device so that I can use it more.
Well I guess there isn't a root for my device. If anyone needs to root this device your out of luck.
Perfectly fine Android build per se; you want to change what?
You were joking, right? Going into the about/device and tapping on the kernel version lets you pick a ROM from microSD.
One supposes that you would use adb to make verify all your build assumptions are OK, grab Android developer kit and blobs on your development box of choice, and build your new improved ROM. Boot to glamour-shot portfolio FTW.
Separately, Internet reports are that Kingroot.net works, at least from the Windows side (perhaps after a little name tweaking from that side of adb resource names; see the perfectly serviceable P10A7100 note on Reddit. On the Android side I'm still looking at a spinner and '01%' root acquisition progress. But then I should give Kaspersky and Malwarebytes the day off while this is going on, right?
Hello,
New to the adb thing. I want to say first off, that this tablet has to be the worst POS I have even had. Its has 32 gb of memory but I can only use 6 of it for apps before it slows to a complete useless doorstop. Could anyone reccomend a good rom image?
I have the same issues. Can't believe they would sell such a POS! That's Best Buy a crap store that used to be one of the best.
Insignia NSP10A7100 rooting
Any luck finding more info on root for this device? I've only tried kingroot so far from the apk but no luck. Also trying to find more info on how to root manually (without a script) or how to write my own script? I've enabled developer options, enabled bootloader unlocking. I can run adb from my ubuntu box but adb reboot bootloader just reboots? I see the option when tapping kernal to update a .zip file but what file? I haven't seen any roms or recovery's for this device. Any help is appreciated!
Insignia NSP10A7100
I was playing around with adb and fastboot tonight and did learn a few things. I had to use "sudo fastboot flashing unlock" to get the bootloader unlocked. Whatever that switch is in developer options to unlock did not seem to unlock anything. I did a getvar all and the output showed it as locked. sudo fastboot with no options gave me the list of commands to use. After reboot there was a screen that warned about the bootloader being unlocked and that it was not safe. I thought it was going to be stuck there but it did finally reboot into a fresh system. I've got files with the output of getvar all and bugreport if any of that info would help anyone with the rooting. If anyone can point me to more research I'll continue to play with this.
mjhack said:
I was playing around with adb and fastboot tonight and did learn a few things. I had to use "sudo fastboot flashing unlock" to get the bootloader unlocked. Whatever that switch is in developer options to unlock did not seem to unlock anything. I did a getvar all and the output showed it as locked. sudo fastboot with no options gave me the list of commands to use. After reboot there was a screen that warned about the bootloader being unlocked and that it was not safe. I thought it was going to be stuck there but it did finally reboot into a fresh system. I've got files with the output of getvar all and bugreport if any of that info would help anyone with the rooting. If anyone can point me to more research I'll continue to play with this.
Click to expand...
Click to collapse
I just got one and trying to access fastboot. I have model p10a7100. When I pick fastboot from recovery mode, I momentarily get resting android with "no command" and get recovery mode again. Because of low ram, I would like root access to install magisk for modules. Please explain your unlock method.
Fred Simm said:
I just got one and trying to access fastboot. I have model p10a7100. When I pick fastboot from recovery mode, I momentarily get resting android with "no command" and get recovery mode again. Because of low ram, I would like root access to install magisk for modules. Please explain your unlock method.
Click to expand...
Click to collapse
I have had no success trying to get root access. I only got the bootloader unlocked. I used adb to reboot into fastboot mode.
mjhack said:
I have had no success trying to get root access. I only got the bootloader unlocked. I used adb to reboot into fastboot mode.
Click to expand...
Click to collapse
Teach us your adb method. I have tried everything and it won't enter fastboot mode. If I type adb reboot fastboot, it just bypasses fastboot and boots up the tablet to android.
Update: I entered the adb command adb reboot fastboot and I get a giant green screen with a walking android robot in the center. Then I lose contact with the tablet. Never saw that before.
fastboot
Fred Simm said:
Update: I entered the adb command adb reboot fastboot and I get a giant green screen with a walking android robot in the center. Then I lose contact with the tablet. Never saw that before.
Click to expand...
Click to collapse
That is what I did also although I used "sudo adb reboot fastboot". Still not sure if the sudo is required? The giant green screen means you are in fastboot mode now. Type "fastboot" at the terminal to see a list of commands. The one I used to unlock was "sudo fastboot flashing unlock_critical". Type "sudo fastboot flashing get_unlock_ability" to find out if you are able to unlock the bootloader. This is as far as I got. Apparently I could now flash an image if I could find one that would be compatible. If you get any further or find one let me know.
mjhack said:
I have had no success trying to get root access. I only got the bootloader unlocked. I used adb to reboot into fastboot mode.
Click to expand...
Click to collapse
mjhack said:
That is what I did also although I used "sudo adb reboot fastboot". Still not sure if the sudo is required? The giant green screen means you are in fastboot mode now. Type "fastboot" at the terminal to see a list of commands. The one I used to unlock was "sudo fastboot flashing unlock_critical". Type "sudo fastboot flashing get_unlock_ability" to find out if you are able to unlock the bootloader. This is as far as I got. Apparently I could now flash an image if I could find one that would be compatible. If you get any further or find one let me know.
Click to expand...
Click to collapse
I lose all connectivity at fastboot. PC doesn't see it anymore.
Fred Simm said:
I lose all connectivity at fastboot. PC doesn't see it anymore.
Click to expand...
Click to collapse
Are you on Windows? I'm on Ubuntu. Not sure what would cause that. Maybe someone out there with more knowledge will chime in. Good luck.
Here is a link to a temp cwm recovery and root instructions for a nuvision 8 inch tablet. According to the post it might work on other intel based tablets. Disclaimer: You may brick your device. I still can't establish an adb connection to test this. I have adb with the tablet booted. I lose it in fastboot or recovery. I was able to unbrick my nuvision after 2 years of waiting for a method.
https://forum.xda-developers.com/android/general/nuvision-tm800a510l-info-root-recovery-t3471186
mjhack said:
Are you on Windows? I'm on Ubuntu. Not sure what would cause that. Maybe someone out there with more knowledge will chime in. Good luck.
Click to expand...
Click to collapse
Winblows 10. I think it's a driver issue.
Fred Simm said:
Winblows 10. I think it's a driver issue.
Click to expand...
Click to collapse
I was wondering if it might be a driver problem. You could try Virtual Box and run Ubuntu that way. I may try that cwm down the road. Thanks for the info.
insignia ns-p10a7100
tony5100 said:
Iv'e been looking around for a root for my device and I can't seem to find a root. Is there even a root for it yet?
Click to expand...
Click to collapse
i am waiting on thumb drive from insignia with source code
wmhaganjr1013 said:
i am waiting on thumb drive from insignia with source code
Click to expand...
Click to collapse
Did you ever get the source code for this tablet?

Pixel shows up in adb devices but not fastboot

I'm trying to root a pixel (sailfish). I'm able to find the device in adb, but when I go into bootloader, the device isn't there. I'm mostly trying things on my Mac, which I used to successfully root a Nexus 7, but I also had the same issue on a Raspberry Pi. What's more is that I have a Verizon Pixel, which is detected in bootloader (but I can't root it since it's Verizon), and the problematic Pixel in bootloader isn't even registering as a connected USB device when I use the command, "system_profiler SPUSBDataType". Anyone have any advice?
@macduffk
Try
Code:
adb reboot bootloader
fastboot devices
jwoegerbauer said:
@macduffk
Try
Code:
adb reboot bootloader
fastboot devices
Click to expand...
Click to collapse
I’ve tried that. It doesn’t show anything.
I have spent months trying to figure out how to get TWRP flashed on my Pixel Phones (I have 2 of them). I have searched & read many links on this forum and can't find any firm details/directions on how to get TWRP on a pixel. From https://android.gadgethacks.com/how-to/install-twrp-custom-recovery-your-pixel-pixel-xl-0175163/ it appears I should of installed TWRP on the factory image first, but I went to Lineage a couple years ago on Android 9 & this was not an option back then.
Both phones have the two latest version of Lineage OS, Both Devices are UNLOCKED, Both have Developer Options Enabled, and on my Windows PC I have the latest version of SDK tools & drivers installed.
Plugging into the PC is done with a a tested/good USB cable plugged into a USB 2 Port. Here is what I am seeing with LinageOS running:
adb devices shows List of Devices Attached
FA77LO302202 device
After executing - adb reboot bootloader
adb devices -> shows an empty list, hence doing a -> fastboot devices shows no devices.
Going to Recovery Mode in Bootloader list of devices shows:
FA76F0303478 unauthorized
In Recovery Mode -> Advanced -> Enable ADB list of devices shows:
FA76F0303478 recovery
I can Apply Update in Recovery Mode via Sideload, but that does not help me get TWRP flashed.
With no devices showing in the main bootloader via adb I can't get the phone into autoboot mode. Per the link at android.gadgethacks.com in order to put the Factory Image back on the phone, https://developers.google.com/android/images, I need to get the phone into autoboot mode.
Anyone have any ideas????
Come-on guys & gals. I'm sure someone can help me at XDA get my devices to fastboot.

[ZTE K87CA] can't unlock bootloader

I got to the fastboot screen on my ZTE K87CA tablet, but when I try to type the command "fastboot flashing unlock" or "fastboot oem unlock", it just shows "waiting for devices". I have searched quite a bit over the web but I have not found a post where someone actually was able to unlock the bootloader on this device.
This is my first time rooting a device
I am trying to find ways to speed up this tablet and free up ram and stuff and rooting the device seemed to be necessary.
If you have answers to my problem please say so.
Coke3 said:
I got to the fastboot screen on my ZTE K87CA tablet, but when I try to type the command "fastboot flashing unlock" or "fastboot oem unlock", it just shows "waiting for devices". I have searched quite a bit over the web but I have not found a post where someone actually was able to unlock the bootloader on this device.
This is my first time rooting a device
I am trying to find ways to speed up this tablet and free up ram and stuff and rooting the device seemed to be necessary.
If you have answers to my problem please say so.
Click to expand...
Click to collapse
Have you enabled OEM unlock in stock rom developer options first with stock rom booted?
Also when device is in bootloader type fastboot devices to see if it is registering your device. If it isn't try getting latest fastboot tools from Android sdk and turning off secure boot if you are on windows 11.
toolhas4degrees said:
Have you enabled OEM unlock in stock rom developer options first with stock rom booted?
Also when device is in bootloader type fastboot devices to see if it is registering your device. If it isn't try getting latest fastboot tools from Android sdk and turning off secure boot if you are on windows 11.
Click to expand...
Click to collapse
I did all the developer settings like usb debugging and and oem unlock.
When the tablet was on normally running, I did "adb devices" and it showed my tablet, but when it was in fastboot mode I did "fastbook devices" and it didn't show anything.
I think I might have thought of something though. When I downloaded the the usb drivers or something; I downloaded the K87CC instead of the K87CA because I couldn't find one for it so that might be the problem
Look into turning off secure boot if using windows 11, and download latest fastboot sdk package
I'm kind of new to this and don't really know where to download all this stuff. could you send me a link?
Not sure if this is the right place to ask this question, but, have you had any chance to find and install any custom rom in ZTE K87CA? My tablet has become extremely slow and I would like to install something lighter.
thanks.

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