Database Users

Fastboot discussion.

I have searched and couldn't find a fastboot thread. So here it is.
I found out fastboot is working on Linux.
Bad news is Windows seems to need another driver for fastboot.
Please help look for a windows driver or make one.
The fastboot commands all seem to work fine.
Here you guys go! Enjoy.
Code:
[SIZE=5][SIZE=3][SIZE=5][SIZE=3]adb reboot-bootloader
fastboot -i 0x1949 command_here[/SIZE][/SIZE][/SIZE][/SIZE]
Just noticed pokey9000 said this but it was overlooked.
pokey9000 said:
That's it. And you're running fastboot as "fastboot -i 0x1949 your_command_here", and you have udev set to allow permissions for that VID (or are running as root) in Linux?
Click to expand...
Click to collapse
Thank you.
Still don't believe me, look at the last picture.
I'm having issues with some commands. Please test it out and enjoy!

shimp208 said:
In the Fire TV section a fastboot cable was created by splicing two USB A to B cables together, so that the A to A ends were together which when connected from your computer to the Fire TV on bootup put the device in fastboot mode, in the process then your computer recognized (Running Windows 8 was the example given) the device and installed the proper drivers. Since the devices are similar, a potential solution would be use the cable, have the computer recognize it and install the drivers, then backup the drivers, and share them here for others to use.
Click to expand...
Click to collapse
I'm quite sure the cable isn't the issue. Also that's just it, I can't get windows to recognize it or find much info about it. The adb driver for the device isn't enough I guess. The funny thing is windows says it's working properly as 'Kindle' for a little while when you plug it in (while in bootloader) then device manager refreshes and reports 'cannot start'. I tried launching 'fastboot devices' many times but still nothing. I think it needs a software fix and not a hardware one but I have no past experience using fastboot. So... noob alert.
btw the driver windows tries to use is ms_comp_mtp(Generic driver installed=true) and adb uses the Amazon one on the fourm here.
DevNode status Value:
01802400
DN_HAS_PROBLEM
DN_DISABLEABLE
DN_NT_ENUMERATOR
DN_NT_DRIVER
Also Bus reported device description Value:
fastboot
VID=1949 & PID=000C
(0x1949 && 0x000c)
Current Driver files:
\system32\DRIVERS\UMDF\WpdMtpDr.dll
\system32\DRIVERS\winusb.sys
\system32\DRIVERS\WUDFRd.sys
\system32\WpdMtp.dll
\system32\WpdMtpUS.dll
We need someone good on this.

I have a problem

I don't think there's ever been a question of getting into fastboot mode by using the adb reboot-bootloader command.
The issue is how to enter fastboot if the device is semi-bricked.
The device has source in the original bootloader to boot into fastboot mode if both volume buttons are pressed while powering on the device. But this has since been altered and now will only work if the device is unlocked.

Hashcode said:
I don't think there's ever been a question of getting into fastboot mode by using the adb reboot-bootloader command.
The issue is how to enter fastboot if the device is semi-bricked.
The device has source in the original bootloader to boot into fastboot mode if both volume buttons are pressed while powering on the device. But this has since been altered and now will only work if the device is unlocked.
Click to expand...
Click to collapse
Is flashing the stock .bin file any different than doing a factory reset?
I am bricked, have root, have adb, can get fastboot using adb reboot-bootloader in windows 8. I also have a Linux box if necessary.

saphi95 said:
I have a problem
Click to expand...
Click to collapse
I would recommend taking a look at this thread here, specifically the "Fixing No Permissions Error" section which should allow you to fix the problem your encountering.

dcoig1 said:
Is flashing the stock .bin file any different than doing a factory reset?
I am bricked, have root, have adb, can get fastboot using adb reboot-bootloader in windows 8. I also have a Linux box if necessary.
Click to expand...
Click to collapse
Fastboot works with win8? Not with win7.1 If you have fastboot working with win8 please go to device manager (when your in the bootloader) click properties on the device then look for what driver it uses.
Hashcode said:
I don't think there's ever been a question of getting into fastboot mode by using the adb reboot-bootloader command.
The issue is how to enter fastboot if the device is semi-bricked.
The device has source in the original bootloader to boot into fastboot mode if both volume buttons are pressed while powering on the device. But this has since been altered and now will only work if the device is unlocked.
Click to expand...
Click to collapse
My main reason is to get fastboot working with windows. I just can't. Linux seems to work with fastboot but I can't access it via windows.

Just uninstall the kindle driver and replace it with the generic fastboot one

hello all,
i've kindle fire hdx 7" , no adb, grey screen logo then shutdown and goes to black screen.
when connected using cable, it show new devices... QHSUSB_BULK and sometime unknown devices.
press hold power button and volume up only go to recovery mode, but cannot recovery the system..
always go to grey screen logo...
sorry for my bad english language...
hope all of you, understand what i mean here
i need solution for fix the problem soon. thanks

I think all that works is reboot into fastboot mode. Windows 8 says no drivers are loaded. I tried a command (can't remember what) and it just went out to lunch so... I guess windows 8 isn't working either. Only to put the device in fastboot.

there are three oem commands:
oem device-info
oem idme
oem relock
Click to expand...
Click to collapse
but it doesn't support oem unlock so there must be another way of unlocking the bootloader, when you try some of the commands the device returns "not allowed for locked hw". Does anyone know what the "hw" is ?

hw = hardware?

MaximilianOzora said:
hello all,
i've kindle fire hdx 7" , no adb, grey screen logo then shutdown and goes to black screen.
when connected using cable, it show new devices... QHSUSB_BULK and sometime unknown devices.
press hold power button and volume up only go to recovery mode, but cannot recovery the system..
always go to grey screen logo...
sorry for my bad english language...
hope all of you, understand what i mean here
i need solution for fix the problem soon. thanks
Click to expand...
Click to collapse
Read up on this bud.

Hi,
I have a bricked kindle hdx 8.9 that stops at "Kindle Fire" boot screen. I am a newbie at these things.
Just discovered that it still respond to some adb queries. Sounds like there is still hope to recover... Could it be the bootloader is messed up? Anyway to reload an image boot file to repair?
Also "fastboot reboot-bootloader" puts it into fastboot mode...with the status "ready"....and i just dont know how to proceed. Any one can help?

uhg
Facepalm

just back a little: was rooted in April but with subsequent amazon auto updates - didn't have su status. But I was able to load apps & files, installed vpns, quite a few docs,mp4 files, etc. Not really using much of the new freedom or whatever was left of it... Nothing exciting.
Was working well until one fine sunday afternoon, just 2 weeks ago when it just simply stopped after rebooting from a previous low battery charge. Was told it could be an interrupted routine update when the battery power just fell below threshold - but thot it wouldn't have erase the previous image before the new update is effective. Or it could possibly be a deleted file that is related to the booting process as I did a bit of clean up prior to the last reboot?
In the meantime, I did some adb shell/pull to explore or extract the files, photos,etc in /sdcard & other places back to my PC just in case they were not backup by the cloud. Maybe it was not bricked...but just lost a boot file or something...

In a bad situation, have absolutely zero ADB access as my build.prop is botched (bad permissions) and I did a factory reset in hopes of recovering. There is a "fastboot cable" on amazon that says it will reboot a hdx into fastboot mode, but I'm unsure of it's legitimacy. Help?

here try
Tumbtack said:
In a bad situation, have absolutely zero ADB access as my build.prop is botched (bad permissions) and I did a factory reset in hopes of recovering. There is a "fastboot cable" on amazon that says it will reboot a hdx into fastboot mode, but I'm unsure of it's legitimacy. Help?
Click to expand...
Click to collapse
This thread.read read read http://forum.xda-developers.com/showthread.php?t=2588608

I don't quite understand. Why is a special cable required for this? What makes it any different from the standard one that comes with the device?

I don't know if this will add anything to the discussion...but I can confirm fastboot is working on Ubuntu 14.04. I am using a kindle fire HDX 7" and it detects it on devices..and most commands work. Sometimes the terminal must be closed and reopened for commands to go through..
fastboot oem unlock works..or rather it says "Okay" but I'm unable to flash anything.

[Unlock Bootloader,Install TWRP,Root Guide] H815EU-ONLY

edit : As of today - 28th June, this method ONLY works on the H815 EU models
update 26th July : Please go check the dream team's ROOT thread located here : [ROOT] TMO/VZW/ATT/SPRINT/INTL Root your LG G4 with Low Effort Root!
Thanks @thecubed , @autoprime , @IllegalArgument & @jcase for their hard work
Hi guys, a quick step by step guide to how I was able to unlock, install TWRP and Root my H815. Please don't hold me responsible if any issues arise with your phone. If you do this, you take your own responsibilities.
I tend to download all the tools in a single folder so it is easier to manage.
The LG Site:
1. go to this LINK and register.
2. you will get a confirmation email.
3. go to this LINK to unlock your bootloader (you will find the information on how to get your IMEI and Device ID lower in the post)
Your PC :
1. Be sure to have the LG drivers (i connected my phone first, it automatically installed the drivers on the computer.
update 27th July : thanks @the_scotsman in case you have driver issues please download these provided by @autoprime : LGUnitedMobile_Win_Driver_Ver_3.14.1
2. Be sure you have installed the ADB stuff that can be found here : Minimal ADB & Fastboot & ADB Installer (type Y to all the questions asked)
Install Minimal ADB first. Then type Y to all the questions the ADB installer asks. Close both windows once done.
Download TWRP 2.8.7. for H815:
1. go to this LINK and download it. Add it to your folder
Download SuperSu 2.46:
1. Download SuperSu 2.46 HERE (thanks @Chainfire ) and add it to your folder
PC & G4 love :
Once you are sure you have completed all the above tasks start rolling :
A. Enter your IMEI on the LG page
- you can find your IMEI on the G4 by going to settings > about phone > status
B. Get your Device ID:
1. hook up your LG on your PC (be sure not to be locked on your lockscreen, That USB debugging is checked and OEM checked in the Developer Options)
2. launch your CMD and type:
Code:
adb reboot bootloader
your phone will reboot
3. type this to get your Device ID
Code:
fastboot oem device-id
4. You will see two lines of number. Copy them and paste them together (to make one line) in the the Device ID fields on the LG site.
5 type :
Code:
fastboot reboot
5. close CMD
5. click Confirm on the site and you will receive by email a file called : unlock.bin.
Unlocking your bootloader:
1. once you get your LG email, save the unlock.bin in your folder
2. launch CMD from the folder (hold shift, right click the folder)
3. in CMD type :
Code:
adb reboot bootloader
4. once your phone is rebooted in bootloader type :
Code:
fastboot flash unlock unlock.bin
5. then reboot your phone by typing :
Code:
fastboot reboot
Normally your phone now has it's bootloader unlocked. When it boots you should see a message on the top left of the screen saying that.
COPY SuperSu and the downloaded TWRP file onto your phone (i put it in the download folder in the phone, not the SD) so you are ready for the next steps
Booting TWRP via ADB and bootloader mode
I personally think this was the easiest way to be able to root and clean install TWRP. Be sure your TWRP is in the folder.
1. Launch CMD from the folder (hold shift, right click the folder)
2. type (again) :
Code:
adb reboot bootloader
3. once your phone reboots and is in bootloader mode type :
Code:
fastboot boot TWRP2861.img
the new name of the file
or
Code:
fastboot boot p1.img
if you didn't rename it.
4. now you will reboot into TWRP.
Installing SuperSu
1. once you are in TWRP click install and go find your SuperSu file.
2. Swipe to install.
3. Once installation is done, reboot to system.
Once you have rebooted into the OS you will find the SuperSu app. Download the TWRP manager just to have it handy. And now i would install the TWRP file you have copied on your phone with flashify. I think it's a great tool.
2 ways to do it:
1. locate the file, click on it and choose to open with flashify then choose recovery and follow the steps
2. find the file via flashify and install.
(Don't download TWRP for H815 in the TWRP manager or Flashify as they are not fixed by @wolfgart (correct me if I am wrong))
once all this done and rebooted. Your phone will have TWRP and would be Rooted. Choose the TWRP manager to boot into recovery when you want.
I preferred to reboot the phone every time just to be sure...
If you have any comments, or i wrote something wrong, don't hesitate to correct me.
Have fun
UPDATE : Thanks to @autoprime you can also update your H815 EU to the latest Stock ROM : 10C (don't forget to thank him, as those guys are working hard to make your life easier!)
@the_scotsman, maybe you can pin this to help the lost souls until a one app does it all appears?

Well that was quick.

mediumraresteak said:
Well that was quick.
Click to expand...
Click to collapse
Looks like it depends on getting info from LG... let's see how long that lasts!

Forgive me if im mistaken but there are already like 3 threads about this i believe.
Sent from my LG-H815 using Tapatalk

I read the LG boot unlock affects streaming services. Can you tell me if it's still possible to stream music from the google play music app, and also YouTube ? Cheers.

barondebxl said:
Forgive me if im mistaken but there are already like 3 threads about this i believe.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
I have seen threads discussing about it yes, but haven't seen a clear guide on "how to" do it. Please enlighten me and i will ask this thread to be deleted. I don't like multi threads on the same subject, so i would be the first to ask that this thread be deleted.
pcoulson said:
I read the LG boot unlock affects streaming services. Can you tell me if it's still possible to stream music from the google play music app, and also YouTube ? Cheers.
Click to expand...
Click to collapse
I haven't had any issues with DRM, Camera or netflix streaming

SAO said:
I have seen threads discussing about it yes, but haven't seen a clear guide on "how to" do it. Please enlighten me and i will ask this thread to be deleted. I don't like multi threads on the same subject, so i would be the first to ask that this thread be deleted.
I haven't had any issues with DRM, Camera or netflix streaming
Click to expand...
Click to collapse
Yeah there arent any other guide, just threads discussing it. It just seems a lot since the LG site is pretty clear and self explanatory.
Sent from my LG-H815 using Tapatalk

I'm stuck on "fastboot oem device-id" command in cmd. Everything up to that point goes smoothly.
command line says "waiting for device" and the phone screen doesn't show phone ID, but gives me options 1-3. 1 being to show device ID, can't remember what the other ones are now. But I can't select "1". What am I doing wrong?
I have USB debugging on, also the OEM unlock is checked in development options.

Eclap78 said:
I'm stuck on "fastboot oem device-id" command in cmd.
command line says "waiting for device" and the phone screen doesn't show phone ID, but gives me options 1-3. 1 being to show device ID, can't remember what the other ones are now. But I can't select "1". What am I doing wrong?
Click to expand...
Click to collapse
unplug your device, if you can't restart it, by keeping your finger pressed for 10 seconds on the power button, take battery out.
Once you put the battery back in, restart the phone, plug in the phone in the computer, restart the CMD, and start the procedure again. :
2. launch your CMD and type:
Code:
adb reboot bootloader
your phone will reboot
3. type this to get your Device ID
Code:
fastboot oem device-id

SAO said:
unplug your device, if you can't restart it, by keeping your finger pressed for 10 seconds on the power button, take battery out.
Once you put the battery back in, restart the phone, plug in the phone in the computer, restart the CMD, and start the procedure again. :
2. launch your CMD and type:
Code:
adb reboot bootloader
your phone will reboot
3. type this to get your Device ID
Code:
fastboot oem device-id
Click to expand...
Click to collapse
I've tried this a few times now, same outcome, same thing, don't get a code, only get the 3 options and the power off 10 second thing, which doesn't work btw, have to pull battery every time

The numbers should show on your CMD window on your computer not the phone.
If the CMD window only shows "waiting for device", did you try to shut the CMD windows?

SAO said:
The numbers should show on your CMD window on your computer not the phone.
If the CMD window only shows "waiting for device", did you try to shut the CMD windows?
Click to expand...
Click to collapse
ah, thought they were supposed to show on the phone screen.
not sure what you mean by shutting the cmd window? I just get stuck on that "waiting for device" message in cmd, at which point I unplugged the phone, did a battery pull and tried again. I've tried about 5 times now, I double checked everything, have all the drivers installed etc.
Oh, and I do have the h815 EU version of the G4. I'll keep digging.

Could someone try out netflix, camera, divx files, YouTube and all the things that people were afraid of loosing. I for myself would really like to root but I dont want to loose any functions by doing that.
Sent from my LG-H815 using Tapatalk

Pyrres said:
Could someone try out netflix, camera, divx files, YouTube and all the things that people were afraid of loosing. I for myself would really like to root but I dont want to loose any functions by doing that.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
I have no issues with Netflix, divx, camera or YouTube.

Just a reminder that this does not work with all H815's as of 6/5/15. I think those of us that got a non EU region specific H815's get stuck when requesting a bootloader unlock from LG. Most of us are getting "not found suffix" when trying to submit the IMEI# and device ID. Note: trying different internet browsers does nothing, so don't bother.
We'll have to wait for LG to either approve all region G4's or another method. Cheers for making a guide though.

AhsanU said:
Just a reminder that this does not work with all H815's as of 6/5/15. I think those of us that got a non EU region specific H815's get stuck when requesting a bootloader unlock from LG. Most of us are getting "not found suffix" when trying to submit the IMEI# and device ID. Note: trying different internet browsers does nothing, so don't bother.
We'll have to wait for LG to either approve all region G4's or another method. Cheers for making a guide though.
Click to expand...
Click to collapse
Thanks for the heads up.. i have put this in red in the first post.

Eclap78 said:
I'm stuck on "fastboot oem device-id" command in cmd. Everything up to that point goes smoothly.
command line says "waiting for device" and the phone screen doesn't show phone ID, but gives me options 1-3. 1 being to show device ID, can't remember what the other ones are now. But I can't select "1". What am I doing wrong?
I have USB debugging on, also the OEM unlock is checked in development options.
Click to expand...
Click to collapse
Got the same Problem and fixed it, because, that are restriction/Firewall/Domaincontroler/Groupright Problems on ur PC.
Here the link, were i short explain my problem. http://forum.xda-developers.com/g4/general/howto-unlock-twrp-root-1-thread-t3130538
And now i see there is a HOWTO Thread
SO i have doubled it :crying:
But same answers like here "we got like 5 Threads", but like u said @SAO NOT 1Thread were all-in-one is explained! :good:

Is there a reason why we have to temporarily boot into TWRP to install root and then install TWRP via a secondary method?
Like, why can't we just do a "fastboot flash recovery twrp.img" command to install TWRP like most other devices with an unlocked bootloader?

Does this method break DRM?

takuhii said:
Does this method break DRM?
Click to expand...
Click to collapse
yes

yoga 2 1050F can only access BIOS, let's go to RMA?

Hello everybody, I was trying to revert to a 4.x rom because bluetooth tethering was not working... anyway I used Intel Phone Flash Tool and it seems like he failed to flash boot.bin but restarted anyway
SO I only have the Intel BIOS, I can access all the settings, but I cannot start it in Fastboot mode (it just hangs on FastBoot Starting...) or anything that resembles Android.
Still this BIOS seems more a PC to me than a tablet so I am posting here because maybe there is someway to attach an USB OTG (for example) and boot something from there.

@ionioni is working on a safe downgrade path. We did mine but it could be a disaster if not followed correctly. Your other choice is Lenovo repair support. When i bricked mine, it only took 6 days to get it back in my hands. You could also try the steps here... http://forum.xda-developers.com/showpost.php?p=62237383&postcount=5
Sent from my YOGA Tablet 2-1050F

Thank you very much @workdowg, I passed by that thread, just "DNX" mode does not work on my tablet.
So Repair Support it is.
It's very sad such an awesome tablet has so poor ROM that people has to downgrade it...

Mr.Gamer said:
................but I cannot start it in Fastboot mode (it just hangs on FastBoot Starting...) ..............
Click to expand...
Click to collapse
that is DNX mode!!! that message translates to: i DNX have started and now i am waiting for YOU to give me a (fast)boot image to start... so that message is exactly the message indicating that you ARE in dnx mode.
updated: read this http://forum.xda-developers.com/thinkpad-tablet/general/yoga-tab-2-830-1050-1380-to-kitkat-t3240487
edit:
before anything:
1. download/extract the files attached to this post, now start your tablet (using the Pwr+VolUp+VolDown) to get to that somehow confusing "Fastboot starting..." message = DNX mode (you must get to that message before continuing!)
2. run the extracted tmp-root-1050F-lollipop.exe file (i am assuming you are on the X64 = Lollipop firmware as that screen pictures you attached shows), should do some stuff and in the end if all well will drop you to a root shell (in that post theres a PrtScr for reference), just follow the messages it's pretty easy. should the exe get stuck/not work put your tablet again in DNX mode and try the other file tmp-root-1050F-kitkat.exe. (this means somehow the bios got downgraded partially on your attempt to return to kitkat). this is just a test to see how to move on, it will not fix nor change anything on your tab, after you reboot it will be in the same state as before (that is if you don't do stuff in that root shell of course)
- report back which one worked (gived you a shell)
- also do you want to go back on kitkat or do you want to stay on lollipop? is important to know as the steps are different

How to unlock bootloader if I have no access to Android GUI?

Hi guys,
a week ago my ZUK Z1 started to bootloop without any evident reason.
I found it in this state picking it up from my pocket, so I guessed it was due to some random reboot that occasionally happened to it.
So, stating that:
- I'm with original stock CyanogenOS,
- I never rooted, or even accessed to the recovery menu prior to this event,
- I'm perfectly able now to communicate and send commands to device via adb or in fastboot mode,
problem is that I did NOT enable "USB debugging" and I did NOT OEM unlock when I had the chance to reach Developer options menu through the Android GUI (now I'm blocked by bootloop), resulting in an obvious "no unlocked device" error message each time I try to flash or write system partitions.
The output from "fastboot oem get-info" confirms this status.
I'm operating from a shell with adiministrator's grant in Windows 8.
No luck with "fastboot oem unlock", "fastboot flashing unlock_critical" or "adb root".
I used also "-i 0x2b4c" (vendor code) option in my commands.
Then, my question for you:
is there still a way to unlock bootloader in order to recover with CyanogenOS stock image, in this condition?
I saw there's a "debuggable" image on Cyanogen site, but I've no hint on how to use it and if it could help me.
Maybe ZUK has to provide to me an unlock key: I read on this forum that OnePlus and Huawei have similar option.
Thanks a lot in advance for any hint and suggestion you can give to me.

---------- Post added at 05:43 PM ---------- Previous post was at 05:43 PM ----------
[/COLOR]
dalviking said:
Hi guys,
a week ago my ZUK Z1 started to bootloop without any evident reason.
I found it in this state picking it up from my pocket, so I guessed it was due to some random reboot that occasionally happened to it.
So, stating that:
- I'm with original stock CyanogenOS,
- I never rooted, or even accessed to the recovery menu prior to this event,
- I'm perfectly able now to communicate and send commands to device via adb or in fastboot mode,
problem is that I did NOT enable "USB debugging" and I did NOT OEM unlock when I had the chance to reach Developer options menu through the Android GUI (now I'm blocked by bootloop), resulting in an obvious "no unlocked device" error message each time I try to flash or write system partitions.
The output from "fastboot oem get-info" confirms this status.
I'm operating from a shell with adiministrator's grant in Windows 8.
No luck with "fastboot oem unlock", "fastboot flashing unlock_critical" or "adb root".
I used also "-i 0x2b4c" (vendor code) option in my commands.
Then, my question for you:
is there still a way to unlock bootloader in order to recover with CyanogenOS stock image, in this condition?
I saw there's a "debuggable" image on Cyanogen site, but I've no hint on how to use it and if it could help me.
Maybe ZUK has to provide to me an unlock key: I read on this forum that OnePlus and Huawei have similar option.
Thanks a lot in advance for any hint and suggestion you can give to me.
Click to expand...
Click to collapse
Sideload the official stock rom with zuk z1 tool. That s how i managed to un-brick my zuk. Download the stock rom , cm-12.1-YOG4PAS3OH-ham-signed.zip from this page https://cyngn.com/support. Use the toolkit provided here : http://forum.xda-developers.com/zuk-...alpha-t3235964 to sideload the rom. Wait until the phone restarts and thats it. You must also install adb and fastboot and have adb driver installed.I used the shenqi adb composite driver, but i guess the universal adb driver can work too. I had the same problem. Stuck in bootloop with USB debugging not enabled and bootloader locked.
Or you can try to fastboot the stock rom with the command provided in this useful tool.

Extentho said:
---------- Post added at 05:43 PM ---------- Previous post was at 05:43 PM ----------
[/COLOR]
Sideload the official stock rom with zuk z1 tool. That s how i managed to un-brick my zuk. Download the stock rom , cm-12.1-YOG4PAS3OH-ham-signed.zip from this page https://cyngn.com/support. Use the toolkit provided here : http://forum.xda-developers.com/zuk-...alpha-t3235964 to sideload the rom. Wait until the phone restarts and thats it. You must also install adb and fastboot and have adb driver installed.I used the shenqi adb composite driver, but i guess the universal adb driver can work too. I had the same problem. Stuck in bootloop with USB debugging not enabled and bootloader locked.
Or you can try to fastboot the stock rom with the command provided in this useful tool.
Click to expand...
Click to collapse
Thanks a lot Extentho for your feedback.
I've already tried your fair suggestion: unfortunately, I'm stuck at the end of sideloading the signed .zip.
In fact, I see on screen logs that it's applying the update "unconditionally" (that sounds good), but nevertheless, when finished it returns "xfer: 1.00x" on PC shell and in recovery menu, on device.
Now, either if I reboot or power down and boot it again, the result is the same: still bootloop-ing.
Of course, at any other attempts leveraging on administrative privilege, it says that "device is locked", including those done through the shell tool.
Some excerpts from my last launched commands:
c:\_APP\CM>adb devices
List of devices attached
51f8941d sideload
c:\_APP\CM>adb shell
error: closed
c:\_APP\CM>adb kill-server
c:\_APP\CM>adb root
error: closed
c:\_APP\CM>adb kill-server
c:\_APP\CM>adb usb
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
error: closed
c:\_APP\CM>adb kill-server
c:\_APP\CM>adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
51f8941d sideload
c:\_APP\CM>adb sideload cm-12.1-YOG4PAS3OH-ham-signed.zip
Total xfer: 1.00x

You must have the phone in sideload mode. There is an option to sideload in recovery menu.
Then use the command to sideload from the toolkit. The stock rom must pe renamed sideload and placed on desktop.
If the phone communicates in any way with pc, there is still hope. When you start the sideload process from pc, the phone should show an animation showing the flashing process. Post some pictures from where you are stuck, so i can make an idea about what is going on

my zuk z1 stuck to bootloop,
and android debugging is disabled.
phone can not detecting in fastboot mode.
please help.

Extentho said:
You must have the phone in sideload mode. There is an option to sideload in recovery menu.
Then use the command to sideload from the toolkit. The stock rom must pe renamed sideload and placed on desktop.
If the phone communicates in any way with pc, there is still hope. When you start the sideload process from pc, the phone should show an animation showing the flashing process. Post some pictures from where you are stuck, so i can make an idea about what is going on
Click to expand...
Click to collapse
I've tried also with the toolkit, but it's heavy bugged (also in 5.4 version) and, after all, it gets the exact same problem like me (not surprising, it launches my same commands ).
There's no useful image or snapshot I can share, because I see the animated green android logo moving its antennas on my device, while logs below saying that it's verifying package and then it's unconditionally overwriting system partition.
It seems all so normal and plain.
At the end of the process, no "installation complete" message, but simply I get back to recovery menu (where I started from).
In other attempts, I also wiped cache and user data, prior to rebooting, just to test if it was going to change something, but no luck.
The phone reboots, the "Cyanogen" logo starts to glow for 7/8 times and then... bzzzz, short vibration and all over again (i.e. bootloop).
I tried with an older official signed .zip from Cyanogen OS (cm-12.1-YOG4PAS3AJ-ham-signed, instead of newer cm-12.1-YOG4PAS3OH-ham-signed), but even worst, it fails at "verify package" step, aborting procedure.
MD5 signatures triple-checked each time versus source.
I saw some threads where it seems possible to change the bit, on system image, controlling developer option, to manually post-enable unlocking, but it's suitable only for Nexus or OnePlus One. No instructions for ZUK Z1.
Or maybe do I need a "donor" sharing a stock .zip with this option yet enabled?
Bootloop would be still there, but I possibly could enable to "flash", "boot" and "shell" vs the device, giving me much more options to try.
One last doubt anyway. If I press "Volume Down" + "Power" button at boot, I get into a menu like this:
http: // postimg.org/image/s5badiefh/ (remove extra spaces).
Viewing other examples posted on forums, I noted that at least the "Factory reset" is missing.
Could it be an hint for anything useful?

dalviking said:
I've tried also with the toolkit, but it's heavy bugged (also in 5.4 version) and, after all, it gets the exact same problem like me (not surprising, it launches my same commands ).
There's no useful image or snapshot I can share, because I see the animated green android logo moving its antennas on my device, while logs below saying that it's verifying package and then it's unconditionally overwriting system partition.
It seems all so normal and plain.
At the end of the process, no "installation complete" message, but simply I get back to recovery menu (where I started from).
In other attempts, I also wiped cache and user data, prior to rebooting, just to test if it was going to change something, but no luck.
The phone reboots, the "Cyanogen" logo starts to glow for 7/8 times and then... bzzzz, short vibration and all over again (i.e. bootloop).
I tried with an older official signed .zip from Cyanogen OS (cm-12.1-YOG4PAS3AJ-ham-signed, instead of newer cm-12.1-YOG4PAS3OH-ham-signed), but even worst, it fails at "verify package" step, aborting procedure.
MD5 signatures triple-checked each time versus source.
I saw some threads where it seems possible to change the bit, on system image, controlling developer option, to manually post-enable unlocking, but it's suitable only for Nexus or OnePlus One. No instructions for ZUK Z1.
Or maybe do I need a "donor" sharing a stock .zip with this option yet enabled?
Bootloop would be still there, but I possibly could enable to "flash", "boot" and "shell" vs the device, giving me much more options to try.
One last doubt anyway. If I press "Volume Down" + "Power" button at boot, I get into a menu like this:
http: // postimg.org/image/s5badiefh/ (remove extra spaces).
Viewing other examples posted on forums, I noted that at least the "Factory reset" is missing.
Could it be an hint for anything useful?
Click to expand...
Click to collapse
For me, this method worked exactly as described, booting into stock rom correctly.
now, if you mentioned it in the picture, there is another option. so, i ve noticed too this menu. There is an app called QPST wich can help you. Follow this thread: http://forum.xda-developers.com/zuk-z1/help/bricked-zuk-z1-t3277257 .
So when you enter in QFIL, connect the phone to computer and boot with volume down+ power into this menu from your picture. The Qfil app should detect some ports. You must choose the 9008 one, from what i have read.
Anyway, for me this method, didn t work because the pc couldn t detect the right port, only the zuk tookit did it for me.
You read the thread i suggested, and try that method, it may work for you.

Extentho said:
For me, this method worked exactly as described, booting into stock rom correctly.
now, if you mentioned it in the picture, there is another option. so, i ve noticed too this menu. There is an app called QPST wich can help you. Follow this thread: http://forum.xda-developers.com/zuk-z1/help/bricked-zuk-z1-t3277257 .
So when you enter in QFIL, connect the phone to computer and boot with volume down+ power into this menu from your picture. The Qfil app should detect some ports. You must choose the 9008 one, from what i have read.
Anyway, for me this method, didn t work because the pc couldn t detect the right port, only the zuk tookit did it for me.
You read the thread i suggested, and try that method, it may work for you.
Click to expand...
Click to collapse
Thanks again Extentho.
I saw QPST trick, but it's not catching right port and/or not getting right permission to stop phone from re-booting.
I think that adb/toolkit method should work also for me. I made attempts with other official ROMs: I noticed that for the older ones, the result is a bit different. They get stuck in a "black screen + notify led lighted in blue" state, rather than bootlooping.
Maybe erasing system partitions is needed, but I'm very reluctant to such dangerous way, without expertised advice.
Weirdest thing is that I did anything to get this situation, I just found my device in this mess.
Of course ZUK official support is well silent at my requests.

dalviking said:
Thanks again Extentho.
I saw QPST trick, but it's not catching right port and/or not getting right permission to stop phone from re-booting.
I think that adb/toolkit method should work also for me. I made attempts with other official ROMs: I noticed that for the older ones, the result is a bit different. They get stuck in a "black screen + notify led lighted in blue" state, rather than bootlooping.
Maybe erasing system partitions is needed, but I'm very reluctant to such dangerous way, without expertised advice.
Weirdest thing is that I did anything to get this situation, I just found my device in this mess.
Of course ZUK official support is well silent at my requests.
Click to expand...
Click to collapse
Try to post some pics about the troubles you encounter. If we receive a solution, this may be helpful for all of us in the future. Now, exactly, what can you acces on phone(recovery, fastboot, )?
Also, check varios threads from other phones with the same problems(one plus one, lg , htc) ,etc. Find a solved situation like yours, and we may adapt that solution to you

Hi guys,
Just to close this topic.
I was finally able to install the ZUI ROM through the QFIL program.
It's a little bit tricky, due to the fact that it is strongly suggested:
- to use a Windows 7 machine started without Signature Enforcement enabled;
- to start QFIL (admin mode) and be prepared with all needed files loaded in its GUI;
- to power off the phone, then, while pressing volume up button, inserting the USB cable, attached (better if) on a 2.0 port to PC;
- to be fast pressing "Download" button on QFIL program.
After that, I unlocked the bootloader and performed a lot of alternative recovery process.
So, I installed on the device:
- ZUI ROM
- Cyanogen OS convert from ZUI ROM
- Cyanogen OS last updated ROM
- CyanogenMod 12.1 last nightly ROM
- CyanogenMod 13.0 last nightly ROM
and the winner is...
...
...
...
... none of the above.
Each time the very same behaviour: bootloop. So, my last conclusion is: hardware failure (I guess wi-fi module).
I give up.
But for anyone searching a safe way to unlock a bootloader without accessing to developer options: the QFIL method works like a charm (once installed properly).
Thanks for support.

Messed my zuk z1
I tried to flash stock room in my zuk z1 , I downloaded Qualcomm file for the ROM and installed the required in my laptop,I wiped all data in my phone using TWRP .though my power button is not working I used tool kit to reboot my phone by connecting into fast boot mode,here comes the prob by mistake I entered the wrong command which locks my bootloader .I don't know what to do...help me.....

How I Rooted Walmart Onn Tablets (No TWRP Needed)

I'll be making a video for this with the 7 inch tablet on Nov. 29th or 30th (depending on the time I have)
General Disclaimer: I'm not responsible if you brick your tablet. This is how I did it personally as other methods here didn't work for me. I have yet to test this method on a 7 inch, also do not have access to the Surf variants. This has only been tested on the 10.1 inch with the keyboard. Will update when I test with the 7 inch.
What's Needed:
MTK Fastboot Drivers: https://online.mediatek.com/Public Documents/MTK_Android_USB_Driver.zip
Magisk Manager Canary: https://forum.xda-developers.com/apps/magisk/dev-magisk-canary-channel-bleeding-edge-t3839337
Stock Boot Image: https://forum.xda-developers.com/wa...eral/stock-stock-backups-images-otas-t3998227
ADB and Fastboot: https://www.xda-developers.com/what-is-adb/
Prerequisites:
Personally, I had issues getting my PC to recognize the tablets in Fastboot mode. The drivers wouldn't install. This might be optional for some of you, but I thought I'd include it just in case.
Installing MTK Fastboot Drivers from the link above
If you plugin your device in fastboot mode and your PC doesn't recognize it, follow these steps. If it did, skip this part.
1.) Download the drivers above and unzip the Zip file somewhere on your PC (desktop or My Documents is easiest)
2.) Boot your Tablet into Fastboot Mode by holding Vol + and Power, then select Fastboot from the Menu
*NOTE* There is a bug with these tablet's that the volume buttons are mislabeled. Really dumb, but I guess that's why they were 55 bucks for the 10 inch on black friday
3.) Plug the device into your PC and open Device Manager by pressing WinKey+R and typing devmgmt.msc, hit Enter
4.) If there's an Other Device listed called Android, follow these steps. If it isn't there, follow the next set of steps
5.) Open a Command Prompt window as Admin and type the following command
Code:
bcdedit.exe /set nointegritychecks on
6.) Hit enter, then restart your PC
7.) Once the PC is restarted, make sure your tablet is connected in Fastboot mode and open Device Manager again
8.) Right click Android under Other Devices and select Update Drivers
9.) Click the Browse my Computer for driver software button and select the MTK Folder you extracted from the download link above
10.) From there, you can open command prompt, type fastboot devices and see if your tablet shows up and move on to root!
Unlocking your Bootloader
From here, you can unlock your bootloader very easily to Root your device
This will wipe all data off the tablet!
0.) Enable OEM Unlock and USB Debugging on the tablet by going to Settings->About and tap Build Number 7 times. From here, enter the new Developer Options that unlock and turn on OEM Unlock and USB Debugging.
1.) Boot your tablet into Fastboot mode and connect it to your PC
2.) Open a Command Prompt window and type the following command, then hit enter
Code:
fastboot flashing unlock
3.) Follow the instructions on screen to unlock your bootloader
4.) Now Boot your device and we'll move on to making a rooted Boot Image
Creating a Rooted Boot Image with Magisk Manager
0.) Make sure you already have Wifi setup and connected before the first time you open Magisk Manager on your device! Make sure it auto connects as well
1.) Download Magisk Manager Canary from the link above
2.) Install it to your device
3.) Download boot Image from the Stock Boot Image part of the Prerequisites above and put the boot.img on your devices internal memory
4.) Open Magisk Manager and select Install Magisk
5.) Select Patch File and select the boot.img from your internal storage
6.) Once its done patching the image, take magisk_patched.img from the downloads folder of your device and move it onto your PC
7.) Boot your tablet into Fastboot mode and plug it into your PC
8.) Open Command Prompt and type the following command and hit enter (make sure you know your magisk_patched.img file location)
Code:
fastboot flash boot magisk_patched.img
9.) Reboot the device and you'll be Rooted!
Optional Steps like Modules and Debloating
My basic debloat script: https://forum.xda-developers.com/wa...s-general/root-walmart-bloat-remover-t4011639
Will be testing GSI roms on the spare 7 inch and will list those here
Recommended Magisk Modules:
Viper4Android Legacy
FDE.AI
MagiskHide Props Config
Systemless Hosts
Youtube Vanced Black
Magisk Setting to Enable:
Magisk Hide
Rename Magisk Manager App (keeps app from detecting magisk root)
Credits:
Myself for this root method @byproxy for reminding me to add the steps for OEM Unlock and enabling wifi before opening Magisk Manager for the first time

I'll start this off saying i'm an amateur at this, but I cannot for the life of me get an option to show up in magisk to patch the boot image even though it's on my 7" tablet. Any thoughts?
The bootloader was unlocked and it was successful so that's not the issue.

Are you online? I had the same problem.
Xavster2 said:
I'll start this off saying i'm an amateur at this, but I cannot for the life of me get an option to show up in magisk to patch the boot image even though it's on my 7" tablet. Any thoughts?
The bootloader was unlocked and it was successful so that's not the issue.
Click to expand...
Click to collapse

Xavster2 said:
I'll start this off saying i'm an amateur at this, but I cannot for the life of me get an option to show up in magisk to patch the boot image even though it's on my 7" tablet. Any thoughts?
The bootloader was unlocked and it was successful so that's not the issue.
Click to expand...
Click to collapse
Sorry, been a busy few days, but make sure you're connected to Wifi, close Magisk Manager, then reopen it and you'll be good to go!

Onn 8" walmart tablet
I purchased the 8" Onn walmart tablet second hand from a store called dirt cheap. Box didnt look to be opened but it had been. The tablet had been setup with someones gmail account that i do not know. The tablet was for a 4yo girl to use to learn preschool. Is there just any simple way to remove this google FRP lock ? I dont care if i lose the info on it as its not mine. I just want her to be able to use the tablet. Any help would be much appreciated please

CoachDad said:
I purchased the 8" Onn walmart tablet second hand from a store called dirt cheap. Box didnt look to be opened but it had been. The tablet had been setup with someones gmail account that i do not know. The tablet was for a 4yo girl to use to learn preschool. Is there just any simple way to remove this google FRP lock ? I dont care if i lose the info on it as its not mine. I just want her to be able to use the tablet. Any help would be much appreciated please
Click to expand...
Click to collapse
Forced factory reset should do it. There is small pin hole near the power button. I believe pressing this hidden button(with a Sim card ejector, or paper clip).
If pressing does not do anything. Maybe press the button then hold power button too

mrmazak said:
Forced factory reset should do it. There is small pin hole near the power button. I believe pressing this hidden button(with a Sim card ejector, or paper clip).
If pressing does not do anything. Maybe press the button then hold power button too
Click to expand...
Click to collapse
Thank you for responding so fast. I've boot into recovery mode /wiped everything...its back to factory. The pinhole reset button does nothing other than reboot it . Ive tried all combos to with the reset button but nothing. Also i've read that its possible to use odin? if i can get it into download mode.
Ive downloaded the stock rom posted on an sdcard wondering if i can possibly update in recovery mode? Im sorta a newb at this stuff. I've been reading for 4 days on this matter. I've practiced a root on an old tablet with success. I guess at this point unless i can sell it as is giving the customer that it has this frp lock on it. If the know how to fix it so be it. Im not sure there is a working solution for frp bypass on these tablets.

CoachDad said:
Thank you for responding so fast. I've boot into recovery mode /wiped everything...its back to factory. The pinhole reset button does nothing other than reboot it . Ive tried all combos to with the reset button but nothing. Also i've read that its possible to use odin? if i can get it into download mode.
Ive downloaded the stock rom posted on an sdcard wondering if i can possibly update in recovery mode? Im sorta a newb at this stuff. I've been reading for 4 days on this matter. I've practiced a root on an old tablet with success. I guess at this point unless i can sell it as is giving the customer that it has this frp lock on it. If the know how to fix it so be it. Im not sure there is a working solution for frp bypass on these tablets.
Click to expand...
Click to collapse
This is an mtk device not Samsung. So there is no Odin or download mode. There is spflash tool, and preloader.
And if you flash firmware (with default frp partition) then frp lock is cleared.
But you will have to find that file. It maybe in the stock firmwares that are shared, I do not know.

EDIT:
i was having issues but figure it out. maybe it should be so common knowledge that it shouldn't need to be included as a step, but since i don't do this THAT often i didn't think about it and it took me a bit to figure out why i was having issues.
once you get your computer to recognize your device (mine did without needing to mess with any drivers) you need to first make sure to got into the tablet settings -> about and then tap on the build number 7 times to access developer options. then you need to go into developer options and turn on OEM Unlocking & USB Debugging.
THEN follow the guide to unlock bootloader.
then (since the tablet is factory reset once you unlock) do the above AGAIN to turn USB Debugging back on after you reboot.
also note that you need to have an internet connection on the tablet to utilize magisk. once you got all that square, then continue on with steps for full root.
hope that helps!

byproxy said:
EDIT:
i was having issues but figure it out. maybe it should be so common knowledge that it shouldn't need to be included as a step, but since i don't do this THAT often i didn't think about it and it took me a bit to figure out why i was having issues.
once you get your computer to recognize your device (mine did without needing to mess with any drivers) you need to first make sure to got into the tablet settings -> about and then tap on the build number 7 times to access developer options. then you need to go into developer options and turn on OEM Unlocking & USB Debugging.
THEN follow the guide to unlock bootloader.
then (since the tablet is factory reset once you unlock) do the above AGAIN to turn USB Debugging back on after you reboot.
also note that you need to have an internet connection on the tablet to utilize magisk. once you got all that square, then continue on with steps for full root.
hope that helps!
Click to expand...
Click to collapse
I did not realize I didn't include that step. Total noob mistake when typing a tutorial up for android. I do this almost daily at work, so I forget to include it

CoachDad said:
Thank you for responding so fast. I've boot into recovery mode /wiped everything...its back to factory. The pinhole reset button does nothing other than reboot it . Ive tried all combos to with the reset button but nothing. Also i've read that its possible to use odin? if i can get it into download mode.
Ive downloaded the stock rom posted on an sdcard wondering if i can possibly update in recovery mode? Im sorta a newb at this stuff. I've been reading for 4 days on this matter. I've practiced a root on an old tablet with success. I guess at this point unless i can sell it as is giving the customer that it has this frp lock on it. If the know how to fix it so be it. Im not sure there is a working solution for frp bypass on these tablets.
Click to expand...
Click to collapse
I was able to remove FRP lock on one of mine by flashing the stock rom with SP Flash Tool. I used the full wipe and download selection with every partition selected including boot.

no worries! i didn't think about it either until i was having issues. thanks for the tutorial... it was super helpful!! btw it definitely works on the 8" tablet.

Hello! I'm new to all of this, but what I'm trying to accomplish is removing the Google account from this tablet and putting a new image on the ONA19TB002, ONA19TB003, ONA19TB007, Surf 7 and 10 tablets. I followed all of the steps as far as installing the drivers. I had to go through hoops to get the MediaTek Drivers installed, but I have a "warning" cone by it. I haven't been able to find any resolution to this. Any help would be appreciated. I' have a Windows 10 64-bit system that I'm using and the tablet I'm specifically working on at the moment is the ONN ONA19TB003 tablet. The tablet is not being recognized by my laptop when I run the 'fastboot devices' command in PowerShell. Is there something that I'm missing? Any help would be appreciated.

'Quis said:
Hello! I'm new to all of this, but what I'm trying to accomplish is removing the Google account from this tablet and putting a new image on the ONA19TB002, ONA19TB003, ONA19TB007, Surf 7 and 10 tablets. I followed all of the steps as far as installing the drivers. I had to go through hoops to get the MediaTek Drivers installed, but I have a "warning" cone by it. I haven't been able to find any resolution to this. Any help would be appreciated. I' have a Windows 10 64-bit system that I'm using and the tablet I'm specifically working on at the moment is the ONN ONA19TB003 tablet. The tablet is not being recognized by my laptop when I run the 'fastboot devices' command in PowerShell. Is there something that I'm missing? Any help would be appreciated.
Click to expand...
Click to collapse
Personally, I avoid PowerShell at all costs. This kinda stuff has always just seemed to work better with CMD.exe instead of Powershell.
These tablets are kind of a nightmare for this. If you've done the mediatek drivers and still have the warning cone icon, I'm not sure what's next as I haven't hit that wall myself. All I can maybe recommend is right click delete drivers in Device Manager, then start over with the driver install
Removing the Google Account would be needing a FRP Bypass. Someone above stated "I was able to remove FRP lock on one of mine by flashing the stock rom with SP Flash Tool. I used the full wipe and download selection with every partition selected including boot. " so if you can get it recognized, try that

KaptinBoxxi said:
Personally, I avoid PowerShell at all costs. This kinda stuff has always just seemed to work better with CMD.exe instead of Powershell.
These tablets are kind of a nightmare for this. If you've done the mediatek drivers and still have the warning cone icon, I'm not sure what's next as I haven't hit that wall myself. All I can maybe recommend is right click delete drivers in Device Manager, then start over with the driver install
Removing the Google Account would be needing a FRP Bypass. Someone above stated "I was able to remove FRP lock on one of mine by flashing the stock rom with SP Flash Tool. I used the full wipe and download selection with every partition selected including boot. " so if you can get it recognized, try that
Click to expand...
Click to collapse
Ok, thank you! This is a shot in the dark, but in order for ADB to work, USB debugging has to be enabled. I can't do that as the tablet is locked by FRP and I have looked countless times on Google and MSN to see if it's possible. Do you have any tips for that?

I don't know what I'm doing wrong, but for some reason I can't seem to get. The tablet to stay in fastboot mode. It just says waiting for device.

will this root onn 8 inch tablet running android 9

soateufel said:
I don't know what I'm doing wrong, but for some reason I can't seem to get. The tablet to stay in fastboot mode. It just says waiting for device.
Click to expand...
Click to collapse
Sorry for late reply. Been away from home with work. When fastboot mode indicates "waiting for device," it generally means that your device is not properly communicating with your PC or laptop. This is nearly always due to missing or incorrect drivers 9n your computer. There are several comprehensive guides here on XDA for installing necessary ADB & Fastboot drivers.

installed magisk manager on onn 8 and also have img zip but win i go to patch it magisk manager crashes

when you mean patch boot img do mean to unzip file on onn 8