Hell to unlock Bootloader Please... - ZTE Axon 7 Questions & Answers

Hi there,
i'd Like to flash the Ressurection Remix Oreo Rom, but i don't get it to unlock the bootloader. I'm on Stock A2017GV1.2.0B10 Nougat. TWRP and Backups are done, but when i try to unlock the Bootloader i geht this message in cmd:
adb: error: connect failed: no devices/emulators found
Tried with Zadigs Drivers, ADB divers are installed and it is showed as QS_Bulk.
Are there still some drivers missing or what am I doing wrong there???

Did you enable USB Debugging on your phone?

Victor13f said:
Did you enable USB Debugging on your phone?
Click to expand...
Click to collapse
Yes, i have OEM unlock and USB Debugging enabled. Dont understand why this is not working at all. Tried it many times, but every Try I get this message in the CMd. Sideload isn't working too...

Have you installed the Google USB drivers and checked in Device manager if everything is working okay? Here's a link to a guide: https://www.drivereasy.com/knowledge/solved-adb-device-not-found-error-on-windows/

HeikoNote3 said:
Yes, i have OEM unlock and USB Debugging enabled. Dont understand why this is not working at all. Tried it many times, but every Try I get this message in the CMd. Sideload isn't working too...
Click to expand...
Click to collapse
Just use the EDL Tool from @djkuz, install it, put your phone into EDL mode and unlock.
https://forum.xda-developers.com/axon-7/development/axon-7-edl-tool-flash-backup-restore-t3750759

raystef66 said:
Just use the EDL Tool from @djkuz, install it, put your phone into EDL mode and unlock.
https://forum.xda-developers.com/axon-7/development/axon-7-edl-tool-flash-backup-restore-t3750759
Click to expand...
Click to collapse
So, Tried this one too. Doesn't work, phone isn't found, error adb interface not found...

HeikoNote3 said:
So, Tried this one too. Doesn't work, phone isn't found, error adb interface not found...
Click to expand...
Click to collapse
Uninstall all drivers you see relating to your phone (adb, usb...)
Try install : http://adbdriver.com/downloads/
And https://androidfilehost.com/?fid=24588232905723896
And see if you can perform with the EDL Tool again or adb

raystef66 said:
Uninstall all drivers you see relating to your phone (adb, usb...)
Try install : http://adbdriver.com/downloads/
And https://androidfilehost.com/?fid=24588232905723896
And see if you can perform with the EDL Tool again or adb
Click to expand...
Click to collapse
Installed the ADB Drivers but in EDL tool the Phone is not recognised. Dont know what could the Problem...

HeikoNote3 said:
Installed the ADB Drivers but in EDL tool the Phone is not recognised. Dont know what could the Problem...
Click to expand...
Click to collapse
First boot into twrp, connect your phone, run the EDL Tool. Normaly the tool should reboot itself into EDL mode
Or try : run EDL tool, instead of power off phone, hold vol down+power, connect usb, just do the same by holding the 3 buttons ( i did that once when my phone was in a state of 'shock' and the 2 button way didn't work)
Btw, did you install the 2 drivers i gave you ?

raystef66 said:
First boot into twrp, connect your phone, run the EDL Tool. Normaly the tool should reboot itself into EDL mode
Or try : run EDL tool, instead of power off phone, hold vol down+power, connect usb, just do the same by holding the 3 buttons ( i did that once when my phone was in a state of 'shock' and the 2 button way didn't work)
Btw, did you install the 2 drivers i gave you ?
Click to expand...
Click to collapse
Yes they're installed. I'm wondering that edl tool shows first ZTE ADB handset etc. And after boot into edl mode it shows no ADB interface... With axon7tool I can choose unlock Bootloader, then MI flash starts and then I don't know the files to flash for an unlock...

HeikoNote3 said:
Yes they're installed. I'm wondering that edl tool shows first ZTE ADB handset etc. And after boot into edl mode it shows no ADB interface... With axon7tool I can choose unlock Bootloader, then MI flash starts and then I don't know the files to flash for an unlock...
Click to expand...
Click to collapse
MiFlash? Where did you read that you had to use MiFlash? ?
You need to use EDL Tool
Edit: Okay, I think I got it. You thought "EDL Tool" was actually axon7toolkit. Well, it isn't. Axon7toolkit, axon7tool, and EDL Tool are 3 different things

Choose an username... said:
MiFlash? Where did you read that you had to use MiFlash?
You need to use EDL Tool
Edit: Okay, I think I got it. You thought "EDL Tool" was actually axon7toolkit. Well, it isn't. Axon7toolkit, axon7tool, and EDL Tool are 3 different things
Click to expand...
Click to collapse
OK, then which tool should I prefer now? In EDL tool I was on a good way to unlock the Bootloader, but when I choose Yes, the unlock begins with load programmer something and stucks until I reboot EDL mode. Then it gives me an error message with: your device could be in Sahara mode. I don't understand anything anymore. Tried every driver, every tool but nothing will work. That drives me crazy...

HeikoNote3 said:
OK, then which tool should I prefer now? In EDL tool I was on a good way to unlock the Bootloader, but when I choose Yes, the unlock begins with load programmer something and stucks until I reboot EDL mode. Then it gives me an error message with: your device could be in Sahara mode. I don't understand anything anymore. Tried every driver, every tool but nothing will work. That drives me crazy...
Click to expand...
Click to collapse
Did you enable OEM unlock and USB debugging?
If you did and it still does that error, just use the manual method and follow Controllerboy's guide. That one uses axon7tool, which is much more finicky and ran by commands, but it works

Thanks for all Tipps. Finally did it. Running RR Oreo!

Related

My lenovo a6000 is hard bricked. PC not detecting it.

Hello all, I have a Lenovo a6000 smartphone. It was owned by my friend. She had a problem with the android os, so she went to a local store and the there it got hard bricked. Now if I turn it on it only vibrates once. no backlight or any picture. If I press and hold vol- and power buttons together LCD backlight turns on but no display. then it goes off and then again turns on. PC does not detect it. Can anyone help me getting it out from this state?
arnab8820 said:
Hello all, I have a Lenovo a6000 smartphone. It was owned by my friend. She had a problem with the android os, so she went to a local store and the there it got hard bricked. Now if I turn it on it only vibrates once. no backlight or any picture. If I press and hold vol- and power buttons together LCD backlight turns on but no display. then it goes off and then again turns on. PC does not detect it. Can anyone help me getting it out from this state?
Click to expand...
Click to collapse
Try qfil method
JovanSijacki said:
Try qfil method
Click to expand...
Click to collapse
Can you give the link please..... please note the phone is no longer detected in pc
arnab8820 said:
Can you give the link please..... please note the phone is no longer detected in pc
Click to expand...
Click to collapse
You need to have adb and fastboot drivers for your phone to correctly get detected.
Here's the LINK FOR QFIL TUTORIAL. You'll need another set of drivers called as the QCOM drivers which are mentioned in the tutorial from the above link.
Hope this helps.
I already have installed the drivers. Still not detected. Even the device manager does not show a device is connected
sasukay said:
You need to have adb and fastboot drivers for your phone to correctly get detected.
Here's the LINK FOR QFIL TUTORIAL. You'll need another set of drivers called as the QCOM drivers which are mentioned in the tutorial from the above link.
Hope this helps.
Click to expand...
Click to collapse
Here the phone connects in Qualcomm hs-USB...... mode. But in case of mine, it does not even show up in the device manager.
arnab8820 said:
Here the phone connects in Qualcomm hs-USB...... mode. But in case of mine, it does not even show up in the device manager.
Click to expand...
Click to collapse
You should try changing the usb cable you are using. Or maybe that guy in the local repair shop didn't put the sub PCB board back correctly.
sasukay said:
You should try changing the usb cable you are using. Or maybe that guy in the local repair shop didn't put the sub PCB board back correctly.
Click to expand...
Click to collapse
There is only one pcb in it. Changing the cable does not make a difference
One update. I can get into the fastboot mode. But the bootloader is locked. What to do?
arnab8820 said:
One update. I can get into the fastboot mode. But the bootloader is locked. What to do?
Click to expand...
Click to collapse
Lenovo A6000 doesn't come with a locked bootloader B-l
If you can boot into fastboot then you should flash twrp from it depending on the current android version of the device. If it had been on kitkat flash this TWRP v2.8.6.0 or if it has been updated to lollipop then flash the latest TWRP v3.1.0.
For this you need to first have the fastboot drivers installed and also the minimal adb and fastboot tool. Then place the required TWRP in that folder, better rename the file to 'recovery.img' and then in the CMD window which you open by Shift + Right Click first type
Code:
fastboot devices
To check whether your device is detected by the tool and haa got drivers installed correctly.
Later, if successful​, type in
Code:
fastboot flash recovery recovery.img
Then you'll have TWRP recovery installed.
Then flash any ROM on the device using it.
sasukay said:
Lenovo A6000 doesn't come with a locked bootloader B-l
If you can boot into fastboot then you should flash twrp from it depending on the current android version of the device. If it had been on kitkat flash this TWRP v2.8.6.0 or if it has been updated to lollipop then flash the latest TWRP v3.1.0.
For this you need to first have the fastboot drivers installed and also the minimal adb and fastboot tool. Then place the required TWRP in that folder, better rename the file to 'recovery.img' and then in the CMD window which you open by Shift + Right Click first type
To check whether your device is detected by the tool and haa got drivers installed correctly.
Later, if successful​, type in
Then you'll have TWRP recovery installed.
Then flash any ROM on the device using it.
Click to expand...
Click to collapse
Thanks! I will try it and post the results.
Btw are you sure it does not come with a locked bootloader? I tried to flash the stock recovery and got an error saying "unknown command or device is lock"
arnab8820 said:
Thanks! I will try it and post the results.
Btw are you sure it does not come with a locked bootloader? I tried to flash the stock recovery and got an error saying "unknown command or device is lock"
Click to expand...
Click to collapse
Yeah bro I'm 100% positive. I think unknown command is displayed when you flash the wrong version of recovery.
You can also​ try
Code:
fastboot boot recovery.img
Sometimes only this works which temporarily boots into the custom recovery.
sasukay said:
Yeah bro I'm 100% positive. I think unknown command is displayed when you flash the wrong version of recovery.
You can also​ try
Sometimes only this works which temporarily boots into the custom recovery.
Click to expand...
Click to collapse
Ok friend i will post the results tonight
sasukay said:
Lenovo A6000 doesn't come with a locked bootloader B-l
If you can boot into fastboot then you should flash twrp from it depending on the current android version of the device. If it had been on kitkat flash this TWRP v2.8.6.0 or if it has been updated to lollipop then flash the latest TWRP v3.1.0.
For this you need to first have the fastboot drivers installed and also the minimal adb and fastboot tool. Then place the required TWRP in that folder, better rename the file to 'recovery.img' and then in the CMD window which you open by Shift + Right Click first type
Code:
fastboot devices
To check whether your device is detected by the tool and haa got drivers installed correctly.
Later, if successful​, type in
Code:
fastboot flash recovery recovery.img
Then you'll have TWRP recovery installed.
Then flash any ROM on the device using it.
Click to expand...
Click to collapse
Tried the above method but no luck it gives an error: "unknown command or device is lock".
arnab8820 said:
Tried the above method but no luck it gives an error: "unknown command or device is lock".
Click to expand...
Click to collapse
Try this with the CWM recovery too.
BTW does your device gets detected by fastboot devices command? Also, have you tried the QPST method?
sasukay said:
Try this with the CWM recovery too.
BTW does your device gets detected by fastboot devices command? Also, have you tried the QPST method?
Click to expand...
Click to collapse
Device gets detected by fastboot devices command. I cant try qpst because the device is not detected in any other mode except fastboot. I hv all the drivers installed
arnab8820 said:
Device gets detected by fastboot devices command. I cant try qpst because the device is not detected in any other mode except fastboot. I hv all the drivers installed
Click to expand...
Click to collapse
You've tried booting into Download mode? It requires you to press the VOL UP + POWER KEY, then you need to select the Download mode in it to perform flashing through QPST.
Also, you never mentioned what android version was the device on, earlier.
sasukay said:
You've tried booting into Download mode? It requires you to press the VOL UP + POWER KEY, then you need to select the Download mode in it to perform flashing through QPST.
Also, you never mentioned what android version was the device on, earlier.
Click to expand...
Click to collapse
If i press and hold vol up and power key together the phone only vibrates once and shows nothing. And i think my friend applied the lollipop update on it. She is not sure.
arnab8820 said:
If i press and hold vol up and power key together the phone only vibrates once and shows nothing. And i think my friend applied the lollipop update on it. She is not sure.
Click to expand...
Click to collapse
Try fastboot oem unlock
arnab8820 said:
Tried the above method but no luck it gives an error: "unknown command or device is lock".
Click to expand...
Click to collapse
I think you are missing something (maybe).
The command is "fastboot flash recovery recovery.img"
If the recovery files name is twrp.img then command will be "fastboot flash recovery twrp.img".

Relock bootloader B35

Here is my situation: I have a A2017U that was running on LOS 14.1 with an unlocked bootloader. The charging pins are wonky and I have to RMA the unit. I did find @DrakenFX files to restore to stock B35, but haven't been successful in relocking the bootloader using the toolkit and other methods. I tried downgrading to B19 using the toolkit but the phone is not recognized in EDL mode. Any help would be greatly appreciated.
@parmar.saab
after all that, what's your current situation?
* you still have twrp
* are you full stock
* did you install QCom drivers? (This is needed for the device to be seen in EDL mode)
post a screenshot of your windows machine " Device Manager " , AFTER booting to EDL
DrakenFX said:
@parmar.saab
after all that, what's your current situation?
* you still have twrp
* are you full stock
* did you install QCom drivers? (This is needed for the device to be seen in EDL mode)
post a screenshot of your windows machine " Device Manager " , AFTER booting to EDL
Click to expand...
Click to collapse
*Yup, I still have TWRP
*Yup, running stock B35 from your zip that I flashed in TWRP
*Installed the drivers from within the toolkit (picture attached)
parmar.saab said:
*Yup, I still have TWRP
*Yup, running stock B35 from your zip that I flashed in TWRP
*Installed the drivers from within the toolkit (picture attached)
Click to expand...
Click to collapse
Last 2 question and I'll give you a little guide to follow.
* You still have access to bootloader/fastboot mode? If so that's all you'll need for what I'm going to reply after your answer here.
* You have my :
- B35 Bootstack
- B35 StockSystem
- B35 stock recovery
If you have all 3 move to them again to sdcard , if you don't have them there already.
P.S. that isn't edl, did you boot to edl using: adb reboot edl ?
DrakenFX said:
Last 2 question and I'll give you a little guide to follow.
* You still have access to bootloader/fastboot mode? If so that's all you'll need for what I'm going to reply after your answer here.
* You have my :
- B35 Bootstack
- B35 StockSystem
- B35 stock recovery
If you have all 3 move to them again to sdcard , if you don't have them there already.
P.S. that isn't edl, did you boot to edl using: adb reboot edl ?
Click to expand...
Click to collapse
I tried booting into EDL mode using the 3 button combo, but I guess it didn't work as I'm on B35. The phone isn't being recognized by the PC because of the wonky charging, and that's why I'm unable to push the command through. I tried pushing the command in terminal emulator but that didn't work either. Is there any other way to boot into EDL mode? If I can just get this thing to boot into EDL mode, I can downgrade to B19 and lock the bootloader using the toolkit, I'm assuming.
parmar.saab said:
I tried booting into EDL mode using the 3 button combo, but I guess it didn't work as I'm on B35. The phone isn't being recognized by the PC because of the wonky charging, and that's why I'm unable to push the command through. I tried pushing the command in terminal emulator but that didn't work either. Is there any other way to boot into EDL mode? If I can just get this thing to boot into EDL mode, I can downgrade to B19 and lock the bootloader using the toolkit, I'm assuming.
Click to expand...
Click to collapse
if you can't send a command through terminal emulator how do you expect to do "fastboot oem lock" let alone flash a full EDL file?
AFAIK it would be as easy as flashing B19 then doing fastboot oem lock. But yeah, no USB means no EDL
parmar.saab said:
I tried booting into EDL mode using the 3 button combo, but I guess it didn't work as I'm on B35. The phone isn't being recognized by the PC because of the wonky charging, and that's why I'm unable to push the command through. I tried pushing the command in terminal emulator but that didn't work either. Is there any other way to boot into EDL mode? If I can just get this thing to boot into EDL mode, I can downgrade to B19 and lock the bootloader using the toolkit, I'm assuming.
Click to expand...
Click to collapse
You're out of luck.
You can't do anything without a computer. You will have to fix the usb port first.
Yeah, but why can't I boot into edl using terminal emulator?
@Oki, any help? When I try the commend "reboot edl" in terminal emulator, it says permission denied.
parmar.saab said:
@Oki, any help? When I try the commend "reboot edl" in terminal emulator, it says permission denied.
Click to expand...
Click to collapse
I think you need root elevated privilege to be able to do any kind if reboot command from terminal emulator.
parmar.saab said:
@Oki, any help? When I try the commend "reboot edl" in terminal emulator, it says permission denied.
Click to expand...
Click to collapse
Again, why do you want to enter EDL if you can't have a decent USB connection to a PC? What do you want to do? Flash a ROM? That takes about 5 minutes and any interruption on the data stream will surely wreak havoc on your device. Same with anything else that you want to try
You need superuser to use the command to reboot to edl. Otherwise you can use the vol+ vol- power combination but you WILL break your device beyond recognition. Total FUBAR.
Choose an username... said:
Again, why do you want to enter EDL if you can't have a decent USB connection to a PC? What do you want to do? Flash a ROM? That takes about 5 minutes and any interruption on the data stream will surely wreak havoc on your device. Same with anything else that you want to try
You need superuser to use the command to reboot to edl. Otherwise you can use the vol+ vol- power combination but you WILL break your device beyond recognition. Total FUBAR.
Click to expand...
Click to collapse
I want to enter the edl/fast boot mode to relock the bootloader. I need to send the phone in for a warranty repair/replacement. The charging port is f in nicky but it isn't bad enough to not let me flash anything if I hold it at a certain angle. I still have twrp, but I'm guessing the faatboot command isn't working as I'm on B35. I feel like I could just brick the phone at this point and send it in to save me the headache.

Can't Get into EDL even with ADB

I have an A2017U, Android 7.1.1, build B35, on MiFavor 4.2 and was looking to upgrade to 5.2/Oreo. I get stuck because I can't boot into EDL mode. I have not unlocked the phone but do have developer options & USB debugging enabled. If I boot with vol up + vol down + power, nothing happens even if I wait 120 seconds. I get a slowly flashing red dot. ADB works fine -- my device is recognized -- and "adb reboot EDL" reboots the phone, but not into EDL mode, just into standard mode. MiFlash doesn't see the phone.
I'm clearly doing something wrong but I'm at a loss what, given how simple the instructions are.
prestonmcafee said:
I have an A2017U, Android 7.1.1, build B35, on MiFavor 4.2 and was looking to upgrade to 5.2/Oreo. I get stuck because I can't boot into EDL mode. I have not unlocked the phone but do have developer options & USB debugging enabled. If I boot with vol up + vol down + power, nothing happens even if I wait 120 seconds. I get a slowly flashing red dot. ADB works fine -- my device is recognized -- and "adb reboot EDL" reboots the phone, but not into EDL mode, just into standard mode. MiFlash doesn't see the phone.
I'm clearly doing something wrong but I'm at a loss what, given how simple the instructions are.
Click to expand...
Click to collapse
Try "adb reboot edl" from a booted phone.
EDL actually IS a black screen, usually without an LED though it might be red. Open Device manager and check under "unrecognized devices", or under "Ports (COM & LPT)". Should be there. If it is under Ports and it is callee Qualcomm HS-USB QDLoader 9008 then MiFlash should work
What are you planning to do? EDL back to B19 then unlock? Just curious
Choose an username... said:
Try "adb reboot edl" from a booted phone.
EDL actually IS a black screen, usually without an LED though it might be red. Open Device manager and check under "unrecognized devices", or under "Ports (COM & LPT)". Should be there. If it is under Ports and it is callee Qualcomm HS-USB QDLoader 9008 then MiFlash should work
What are you planning to do? EDL back to B19 then unlock? Just curious
Click to expand...
Click to collapse
I plan to update to Oreo/MiFavor 5.2.
How do I issue the command from a phone? I know how to use ADB from a PC but not from a phone. That is what I have done -- enable developer options, connect the phone, verify that it is connected (adb devices) and then issue the command (adb reboot EDL).
Use the Edl tool by Djkuz
Install it to PC or laptop with all updated drivers
Open edl tool with run as admin
Boot your phone into ftm
Turn your phone off
Press and hold vol dn + power till you see ftm screen
Plug in your phone
Follow the on screen till it detects your phone
Select unlock then edl fix
Edl tool is here
https://forum.xda-developers.com/axon-7/development/axon-7-edl-tool-flash-backup-restore-t3750759
prestonmcafee said:
I plan to update to Oreo/MiFavor 5.2.
How do I issue the command from a phone? I know how to use ADB from a PC but not from a phone. That is what I have done -- enable developer options, connect the phone, verify that it is connected (adb devices) and then issue the command (adb reboot EDL).
Click to expand...
Click to collapse
Yes, but what are you going to do BEFORE updating to MF5.2?
you can't edl mifavor 5.2 because you will break stuff, besides you need an unlocked bootloader or you'll DFU brick your phone and you'll have to throw it in the trash.
I meant to issue adb reboot edl from your pc but with your phone on
On a side note, I recommend not using EDL Tool or axon7toolkit to unlock your phone. EDL Tool has a much better track record than other apps but it still has margin for error. The best way to unlock an A2017U is get a B19 EDL package and install it with MiFlash, then enter Fastboot and do "fastboot oem unlock".
Worked!
Syberclone said:
Use the Edl tool by Djkuz
Install it to PC or laptop with all updated drivers
Open edl tool with run as admin
Boot your phone into ftm
Turn your phone off
Press and hold vol dn + power till you see ftm screen
Plug in your phone
Follow the on screen till it detects your phone
Select unlock then edl fix
Edl tool is here
https://forum.xda-developers.com/axon-7/development/axon-7-edl-tool-flash-backup-restore-t3750759
Click to expand...
Click to collapse
That worked, thanks!
Ive used all of the Axon 7 tools as well as adb commands and all work well in there own ways.
Script errors or command errors can be an issue as well as some software (ROMs, recovery and boot imgs) a few times I've had to edit a zip or img to make it work.
After a few boot loops on my HTC.
Is there an official MiFavor Update on 5.2?
My phone is still on 4.2 and can't find any updates.
SebaSnow said:
Is there an official MiFavor Update on 5.2?
My phone is still on 4.2 and can't find any updates.
Click to expand...
Click to collapse
only for Chinese (A2017) phones. It's 8.0 mifavor with the new mf5.0 interface (way more Chinese-looking). If you want to install it on a G or U you'll have to use one of the packages made for them (Usually for an update from other model to work you need to change its modem file to the one that your model uses, i.e. swap the chinese modem with the G's).

your device is corrupted and cannot be trusted and may not work properly

Hi all, I ended up with this:
"your device is corrupted and cannot be trusted and may not work properly"
I can access Fastboot mode but can't flash any TWRP
Any help?
I tried to install LOS with Universal Bootstack...and Axon 7 Tool open a window just for one second so I can't access the command
amus76 said:
Hi all, I ended up with this:
"your device is corrupted and cannot be trusted and may not work properly"
I can access Fastboot mode but can't flash any TWRP
Any help?
I tried to install LOS with Universal Bootstack...and Axon 7 Tool open a window just for one second so I can't access the command
Click to expand...
Click to collapse
All right, do this:
-Put the phone in Fastboot
-Open command prompt
-Run "fastboot erase userdata"
If it doesn't work, do this:
-Set up a TWRP on your fastboot folder (rename it to "recovery.img" [BE SURE THAT YOUR PC SHOWS FILE NAME EXTENSIONS] and put it on the folder where fastboot is located)
-Open command prompt in the folder where Fastboot is located
-Run this command:
fastboot boot recovery.img
Your phone should enter TWRP. It's not installed, it just boots it once.
Then try to format data from TWRP. Right after that, use "adb push recovery.img /sdcard" to push the recovery img to your internal storage. Then go (on your twrp) to "Install" - hit "Install image", then select the recovery.img, and select "recovery" and swipe to confirm.
After it is done, install LOS again. If it is 15.1 or 16 you have to have a Vendor compatible TWRP, such as Ordenkrieger's TWRP (From LOS16 thread). Follow the instructions precisely
As soon as TWRP is flashed, i get the warning screen with : "your device is corrupted and cannot be trusted and may not work properly"
And no recovery then after reboot
No FTM mode and I can't enter EDL
And I have to say my device is recgnised as DFU by the PC so maybe trying the EDL cable?
amus76 said:
As soon as TWRP is flashed, i get the warning screen with : "your device is corrupted and cannot be trusted and may not work properly"
And no recovery then after reboot
No FTM mode and I can't enter EDL
And I have to say my device is recgnised as DFU by the PC so maybe trying the EDL cable?
Click to expand...
Click to collapse
yes, an edl cable might work. Otherwise I think you can get some fastboot images and attempt to install them to the right locations
Did you do "fastboot boot recovery.img"? It shouldn't reboot the phone. TWRP should appear right after the transfer is done
If you still have access the fastboot
Enter, reboot dm-verity enforcing
Check here
https://forum.xda-developers.com/axon-7/development/unofficial-lineageos-15-1-zte-axon-7-t3800214
Choose an username... said:
yes, an edl cable might work. Otherwise I think you can get some fastboot images and attempt to install them to the right locations
Did you do "fastboot boot recovery.img"? It shouldn't reboot the phone. TWRP should appear right after the transfer is done
Click to expand...
Click to collapse
I did the fastboot boot recovery.img the phone reboot, i get the warning screen for unlocked bootloader and straight after "your device is corrupted and cannot be trusted and may not work properly" with the same style as the bootloader warninr screen.
So without a recovery I can't flash fastboot images
For those in my case:
When you get the warning screen with the red message, just push once the button power, a Linux logo will appear, and another push on the button will boot you in TWRP
I didn't manage to get the command to work : adb reboot "dm-verity enforcing", I tried Terminal in TWRP but with no luck.
Did you get access to Edl mode, via button combo or through adb?
If not can you get to the FTM screen?
I know you couldn't access these earlier, has that changed?
Also what apps do you have?
Edl tool?
Axon 7 tool kit (you did mention this)
Miflash?
Qualcomm drivers and Zadig drivers?
Syberclone said:
Did you get access to Edl mode, via button combo or through adb?
If not can you get to the FTM screen?
I know you couldn't access these earlier, has that changed?
Also what apps do you have?
Edl tool?
Axon 7 tool kit (you did mention this)
Miflash?
Qualcomm drivers and Zadig drivers?
Click to expand...
Click to collapse
I didn't get access to EDL mode even through ADB, nor FTM screen. So MiFlash is useless
With Axon 7 tool, I tried to flash TWRP with no success, my phone was on DFU
Then I managed to dm-verity encrypted through ADB but the phone was not rebooting on recovery, still fastboot but the phone was not recognize by the PC
I have Qualcomm Drivers installed
Right now with Lineage, I can't acces FTM screen
I just pushed the button twice when I was with the red warninr screen and get access to TWRP (or Lineage boot screen)
Try installing the Zadig drivers and the bulk USB drivers for the axon to help detect the correct device.
Then see if the Axon tool kit will work properly.
DFU mode shows for a number of reasons.
In your windows device manager it needs to show
"Qualcomm HS-USB QDLoader 9008" if all drivers are setup properly.
When I soft bricked mine I was trying to install Los 15.1
I had the corrupt device message you are getting.
I used all 3 apps to eventually get mine running.
I made sure all drivers were installed and up to date, I switched between the Axon tool kit, edl tool and Miflash to get my laptop to recognise.
I ran the Axon tool kit to setup adb (a few attempts before it worked)
I then ran Edl tool to get some form of Edl
Then ran Miflash (latest version) I had to try this several times too (constant error messages) it finally started the flash process but would fail (I was using the turkdev edl)
I swapped it for the B12 Edl on Raystefs page and it worked, I then had to reflash with the correct modem though.
Anyway I truly hope you get it sorted
Syberclone said:
Try installing the Zadig drivers and the bulk USB drivers for the axon to help detect the correct device.
Then see if the Axon tool kit will work properly.
DFU mode shows for a number of reasons.
In your windows device manager it needs to show
"Qualcomm HS-USB QDLoader 9008" if all drivers are setup properly.
When I soft bricked mine I was trying to install Los 15.1
I had the corrupt device message you are getting.
I used all 3 apps to eventually get mine running.
I made sure all drivers were installed and up to date, I switched between the Axon tool kit, edl tool and Miflash to get my laptop to recognise.
I ran the Axon tool kit to setup adb (a few attempts before it worked)
I then ran Edl tool to get some form of Edl
Then ran Miflash (latest version) I had to try this several times too (constant error messages) it finally started the flash process but would fail (I was using the turkdev edl)
I swapped it for the B12 Edl on Raystefs page and it worked, I then had to reflash with the correct modem though.
Anyway I truly hope you get it sorted
Click to expand...
Click to collapse
Thanks a lot, I have it sorted!
But what strange is a lot of people is facing this problem recently in a short time
amus76 said:
Thanks a lot, I have it sorted!
But what strange is a lot of people is facing this problem recently in a short time
Click to expand...
Click to collapse
Can I ask how you got it fixed? I would be handy to know for others that end up in this position.
Syberclone said:
Can I ask how you got it fixed? I would be handy to know for others that end up in this position.
Click to expand...
Click to collapse
Just with "dm-verity enforcing" with ADB
Then: press button power when on the red warning, a pinguin will appear and again press the power button, it will reboot on TWRP or Lineage
My fasbtoot was inefficient a part for the dm-verity enforcing, no FTM also
amus76 said:
For those in my case:
When you get the warning screen with the red message, just push once the button power, a Linux logo will appear, and another push on the button will boot you in TWRP
I didn't manage to get the command to work : adb reboot "dm-verity enforcing", I tried Terminal in TWRP but with no luck.
Click to expand...
Click to collapse
I know this is an old reply, but I arrive from a google search. Sir, thanks a lot for this reply. I was stuck in your same situation and pressing the power button with the linux icon allowed me to go to TWRP. THANKS!
I get the pinguin, but if i press Power again, nothing happened. I have to wait for a while it reboots to System. I tried to hold Power while it is rebooting, but it always reboots to System. No chance to enter twrp...

OnePlus 8 Pro problem - No OS

Hi guys,
I am having an issue with my OnePlus 8 Pro and I hope you can help me. I am open to all suggestions.
My phone bricked after trying to flash a custom rom. I have access to fastboot mode and TWRP. I am operating a linux machine and have windows10 running in virtualbox. I don't know if this is the reason but when I am trying to boot in to EDL mode (ony possibility is via TWRP) my device does not pop up in devicemanager. I followed all the steps in the thread about the MSM tool. When I try to get in to EDL mode with the hardware butons and the original cable from OnePlus I can not get in to EDL mode at all. Tried different cables and different USB ports on my computer but with no success. The correct qualcomm drivers are installed in windows so in theory it should work. Because of this I can not use the MSM tool to get my phone up and running. It simply does not pop up as a qualcomm device in devicemanager when I reboot in EDL mode.
I tried to flash the fastbootrom for my oneplus8 pro but after the last command it restarts and gets into stock recovery. In the command window it says 'waiting for any device' and nothing happens (I waited for about 20 minutes). In the post is mentioned: If the device automatically reboot in Stock Recovery mode don't reboot it and wait the flash end. Because nothing seems to happen I saw further in the post If the rom seems doesn't start go in recovery stock and follow this guideline: English -> Wipe data and cache -> Erase everything.There is no option available to wipe data and cache/ erase everything in the recovery menu. When I choose to reboot to recovery in the recovery menu my phone powers off. The other option is to reboot into fastbootmode. When I do that there is an error in the command window FAILED Flashing is not allowed for Critical Partitions. I don't know how to fix this. I tried both Linux to flash the fastboot rom manually and in windows also and with the flash-all.bat file. Everytime I end up in fastboot mode when I boot up my phone.
Instead of trying to flash the original OS with the fastbootrom I tried to flash different custom ROMS but somehow it will not install any ROM at all...the device reboots everytime to fastboot mode. Last option I tried is a different recovery. I flashed lineage recovery and tried to flash Lineage OS and AICP and this resulted also in only able to boot into fastboot mode.
I spend a lot of time on the web trying to figure out what is wrong and how to fix it but I have not found a solution yet.
Is there a solution available to get my phone up and running?
SakasakaHeyhey said:
Hi guys,
I am having an issue with my OnePlus 8 Pro and I hope you can help me. I am open to all suggestions.
My phone bricked after trying to flash a custom rom. I have access to fastboot mode and TWRP. I am operating a linux machine and have windows10 running in virtualbox. I don't know if this is the reason but when I am trying to boot in to EDL mode (ony possibility is via TWRP) my device does not pop up in devicemanager. I followed all the steps in the thread about the MSM tool. When I try to get in to EDL mode with the hardware butons and the original cable from OnePlus I can not get in to EDL mode at all. Tried different cables and different USB ports on my computer but with no success. The correct qualcomm drivers are installed in windows so in theory it should work. Because of this I can not use the MSM tool to get my phone up and running. It simply does not pop up as a qualcomm device in devicemanager when I reboot in EDL mode.
I tried to flash the fastbootrom for my oneplus8 pro but after the last command it restarts and gets into stock recovery. In the command window it says 'waiting for any device' and nothing happens (I waited for about 20 minutes). In the post is mentioned: If the device automatically reboot in Stock Recovery mode don't reboot it and wait the flash end. Because nothing seems to happen I saw further in the post If the rom seems doesn't start go in recovery stock and follow this guideline: English -> Wipe data and cache -> Erase everything.There is no option available to wipe data and cache/ erase everything in the recovery menu. When I choose to reboot to recovery in the recovery menu my phone powers off. The other option is to reboot into fastbootmode. When I do that there is an error in the command window FAILED Flashing is not allowed for Critical Partitions. I don't know how to fix this. I tried both Linux to flash the fastboot rom manually and in windows also and with the flash-all.bat file. Everytime I end up in fastboot mode when I boot up my phone.
Instead of trying to flash the original OS with the fastbootrom I tried to flash different custom ROMS but somehow it will not install any ROM at all...the device reboots everytime to fastboot mode. Last option I tried is a different recovery. I flashed lineage recovery and tried to flash Lineage OS and AICP and this resulted also in only able to boot into fastboot mode.
I spend a lot of time on the web trying to figure out what is wrong and how to fix it but I have not found a solution yet.
Is there a solution available to get my phone up and running?
Click to expand...
Click to collapse
Sounds like a Qualcomm driver issue. You need that for msm
jamescable said:
Sounds like a Qualcomm driver issue. You need that for msm
Click to expand...
Click to collapse
I am affraid so jamescable. I was hoping for a fix via fastboot mode...
What is strange is that flashing another recovery via fastboot is no probleem but a Rom is... don't know why my device is doing this.
SakasakaHeyhey said:
I am affraid so jamescable. I was hoping for a fix via fastboot mode...
What is strange is that flashing another recovery via fastboot is no probleem but a Rom is... don't know why my device is doing this.
Click to expand...
Click to collapse
You can only install Qualcomm drivers in windows, not linux
jamescable said:
You can only install Qualcomm drivers in windows, not linux
Click to expand...
Click to collapse
Hi jamescable,
Thanx for your support.
I am running windows 10 in a virtual machine and installed the drivers. The problem is that my device does not pop up as a qualcomm device in devicemanager when I boot into edl mode.
In fastboot mode my device does pop up in device manager.
That is what I do not understand.
SakasakaHeyhey said:
Hi jamescable,
Thanx for your support.
I am running windows 10 in a virtual machine and installed the drivers. The problem is that my device does not pop up as a qualcomm device in devicemanager when I boot into edl mode.
In fastboot mode my device does pop up in device manager.
That is what I do not understand.
SakasakaHeyhey said:
Hi jamescable,
Thanx for your support.
I am running windows 10 in a virtual machine and installed the drivers. The problem is that my device does not pop up as a qualcomm device in devicemanager when I boot into edl mode.
In fastboot mode my device does pop up in device manager.
That is what I do not understand.
Click to expand...
Click to collapse
To get to edl mode. Power phone off completely. Then. Use msmtool. Get it ready and hit start. Then hold down volume AND volume down. Do NOT hit power button at all. Plug phone in. Msmtool should start immediately
Click to expand...
Click to collapse
SakasakaHeyhey said:
Hi jamescable,
Thanx for your support.
I am running windows 10 in a virtual machine and installed the drivers. The problem is that my device does not pop up as a qualcomm device in devicemanager when I boot into edl mode.
In fastboot mode my device does pop up in device manager.
That is what I do not understand.
Click to expand...
Click to collapse
To get to edl mode. Power phone off completely. Then. Use msmtool. Get it ready and hit start. Then hold down volume up AND volume down. Do NOT hit power button at all. Plug phone in. Msmtool should start immediately
Thanx jamescable. I am going to do this as you described later this week and will post an update in this thread.
Have a nice day friend!
jamescable said:
To get to edl mode. Power phone off completely. Then. Use msmtool. Get it ready and hit start. Then hold down volume up AND volume down. Do NOT hit power button at all. Plug phone in. Msmtool should start immediately
Click to expand...
Click to collapse
Hi jamescable,
Just done exactly as above...my devices boots into edl mode, but msm tool does nothing and in devicemanager my device does not pop up either. I do not hear a sound when I plug in the One+ cable...tried different usb ports on the computer also.
Do you have any ideas what I can do more?
SakasakaHeyhey said:
Hi jamescable,
Just done exactly as above...my devices boots into edl mode, but msm tool does nothing and in devicemanager my device does not pop up either. I do not hear a sound when I plug in the One+ cable...tried different usb ports on the computer also.
Do you have any ideas what I can do more?
Click to expand...
Click to collapse
It has to be a driver issue then. Windows in virtual machine obviously won't work for this
jamescable said:
It has to be a driver issue then. Windows in virtual machine obviously won't work for this
Click to expand...
Click to collapse
O no then I really have a problem....I only have linux as an operating system....I thought windows in a virtual machine running does the trick but I guess I am wrong.

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