A2017g can't reboot to bootloader - ZTE Axon 7 Questions & Answers

So I've just received my axon 7 a2017g. It came with b06 installed. I'm trying to unlock boot loader without success. Can't get to edl mode. In cmd the device is unauthorized though I've enabled oem unlock and sub debugging. Installed the drivers from sub debugging. I have Windows 10 64 bit. I get to recovery with volume up plus power I select to reboot to bootloader with no success. It only restarts. Tried also with b10 and b08.
Any suggestions ?

ItsNewDroid said:
So I've just received my axon 7 a2017g. It came with b06 installed. I'm trying to unlock boot loader without success. Can't get to edl mode. In cmd the device is unauthorized though I've enabled oem unlock and sub debugging. Installed the drivers from sub debugging. I have Windows 10 64 bit. I get to recovery with volume up plus power I select to reboot to bootloader with no success. It only restarts. Tried also with b10 and b08.
Any suggestions ?
Click to expand...
Click to collapse
Why bootloader? Isn't there a way to do it via EDL (from system, do adb reboot edl)? On Controllerboy's guide maybe? Maybe you think that the device doesn't get to EDL because it seems like it's totally powered off. Just try again.
As of fastboot, it was removed on Nougat, not sure if they removed it before though

Choose an username... said:
Why bootloader? Isn't there a way to do it via EDL (from system, do adb reboot edl)? On Controllerboy's guide maybe? Maybe you think that the device doesn't get to EDL because it seems like it's totally powered off. Just try again.
As of fastboot, it was removed on Nougat, not sure if they removed it before though
Click to expand...
Click to collapse
Did not understand you. Where in system to do and reboot?
The phone is turned onand connected the the pc and I've enabled oem unlock and usb debugging.
The device won't boot to edl after I enter adb reboot edl. So I tried in recovery screen to get to the bootloader menu but pressing reboot loader it just restarts

ItsNewDroid said:
Did not understand you. Where in system to do and reboot?
The phone is turned onand connected the the pc and I've enabled oem unlock and usb debugging.
The device won't boot to edl after I enter adb reboot edl. So I tried in recovery screen to get to the bootloader menu but pressing reboot loader it just restarts
Click to expand...
Click to collapse
You have to have adb and fastboot installed. Run "adb reboot edl" from your computer while the phone is on, it should ask you if you want ADB to be allowed to do stuff, then poof. Go to the Device manager and check that there's a Qualcomm HS-USB QDLoader 9008 under Ports (COM&LPT)

Choose an username... said:
You have to have adb and fastboot installed. Run "adb reboot edl" from your computer while the phone is on, it should ask you if you want ADB to be allowed to do stuff, then poof. Go to the Device manager and check that there's a Qualcomm HS-USB QDLoader 9008 under Ports (COM&LPT)
Click to expand...
Click to collapse
Can you direct me where to get the adb and fastboot? I've rooted a lot of phones but this one seems unfriendly

ItsNewDroid said:
Can you direct me where to get the adb and fastboot? I've rooted a lot of phones but this one seems unfriendly
Click to expand...
Click to collapse
You rooted a lot of phones and don't have ADB lol
Search for 15 seconds adb installer

I already have it installed. It says unauthorized when I run adb devices

ItsNewDroid said:
I already have it installed. It says unauthorized when I run adb devices
Click to expand...
Click to collapse
Unplug the phone, turn it off. Hold only the 2 volume buttons (DON'T TOUCH POWER) and insert the USB-C (plugged to the PC in the other end ofc) while holding the two volume buttons. then check device manager
This should get you to EDL
---------- Post added at 12:44 AM ---------- Previous post was at 12:40 AM ----------
ItsNewDroid said:
I already have it installed. It says unauthorized when I run adb devices
Click to expand...
Click to collapse
Okay after you do that last thing you should get to EDL. Download Zadig, uninstall the Qualcomm QDLoader drivers and tick Delete driver software too. Then go to Zadig and install the driver. After that hold the 3 buttons (pwr, vol) until the led flashes or your PC makes a sound, wait 5 seconds, and you'll be able to run axon7tool.exe -r gpt boot recovery

In zadig's post he says they G models should edl only by the command. But I did as you said with the volume buttons. I run axon7tool in command But it says no device found

ItsNewDroid said:
In zadig's post he says they G models should edl only by the command. But I did as you said with the volume buttons. I run axon7tool in command But it says no device found
Click to expand...
Click to collapse
That's extremely weird...
Well I guess there's no harm trying to downgrade to marshmallow B03. Download that ancient ROM from raysteff's download center. I did the whole process there. Maybe you'll get fastboot too
---------- Post added at 01:13 AM ---------- Previous post was at 01:10 AM ----------
ItsNewDroid said:
In zadig's post he says they G models should edl only by the command. But I did as you said with the volume buttons. I run axon7tool in command But it says no device found
Click to expand...
Click to collapse
Thinking about it it's not that weird, I think you're not getting the Zadig part. Did you install the driver through Zadig? How's the device reported aa when on EDL? If you installed the driver properly it should be listed as QUSB_BULK under USB something

Sure I'm not doing something right.
First I did not have Qualcomm drivers installed
I'm in edl with volume buttons and sub. open zadig and install wcid.
From here I did not get it. Hold all buttons vol÷power?

ItsNewDroid said:
I already have it installed. It says unauthorized when I run adb devices
Click to expand...
Click to collapse
Like this ?
"adb devices" command:
List of devices attached
* daemon not running. starting it now at tcp:5037 *
* daemon started successfully *
xxxxx unauthorized
When enabling USB debugging then with USB cable connected, there is a popup in your phone, asking to authorize
your phone (with digital signature etc..). You need then to authorize it. Afterwards, your phone will be recognized
with 'adb devices" output as :
List of devices attached
* daemon not running. starting it now at tcp:5037 *
* daemon started successfully *
xxxxx device
xxxxx is your device id. You must have status "device" and not "unauthorized"

dnlilas said:
Like this ?
"adb devices" command:
List of devices attached
* daemon not running. starting it now at tcp:5037 *
* daemon started successfully *
xxxxx unauthorized
When enabling USB debugging then with USB cable connected, there is a popup in your phone, asking to authorize
your phone (with digital signature etc..). You need then to authorize it. Afterwards, your phone will be recognized
with 'adb devices" output as :
List of devices attached
* daemon not running. starting it now at tcp:5037 *
* daemon started successfully *
xxxxx device
xxxxx is your device id. You must have status "device" and not "unauthorized"
Click to expand...
Click to collapse
Yes I know that a message should popup but it doesn't. What can I do?
I have oconnection options like charging, mpt etc.
Should I choose something perticular?
And why it doesn't reboot to bootloader from recovery menu?
I really think something is wrong with the device.
Where can I find a2017g b03? In every post the link to zte's website that only have b11 and nougat.
Sorry for all the questions as I said this device gives me a hard time.
I've had opo op3 lg g5 le max 2. Non of theme gave me hard time like this one

ItsNewDroid said:
Yes I know that a message should popup but it doesn't. What can I do?
I have oconnection options like charging, mpt etc.
Should I choose something perticular?
And why it doesn't reboot to bootloader from recovery menu?
I really think something is wrong with the device.
Where can I find a2017g b03? In every post the link to zte's website that only have b11 and nougat.
Sorry for all the questions as I said this device gives me a hard time.
I've had opo op3 lg g5 le max 2. Non of theme gave me hard time like this one
Click to expand...
Click to collapse
Please check periodically USB debugging option. I encountered similar problem as your, and before the popup that confirms USB debugging
for the phone, the option is set back to disabled. So maybe you have to check again this option, unplug and replug the phone, choose option MTP,
this should help to have the confirmation popup. Anyhow you must have to reach status "device" which means your phone is able to connect using ADB.
For A2017G B03, it is not necessary, B11 is OK for unlock, TWRP or root using the current guide.
However if you really need it (A2017G B03, B06, B09):
https://forum.xda-developers.com/showpost.php?p=68873485&postcount=3

I suspect that my laptop is causing me trouble as also my g5 will not prompt me with authorization.
I'm gonna use a different laptop without any drivers installed. Can someone tell me all the drivers needed for the a2017g in chronological order so there won't be any conflicts?
In other tutorials they don't mention Qualcomm's driver but in othrrs they are needed.
This phone makes me so frustrated.
So please a step by step from new how to connect to adb on a total new pc. From there I hope I'll manage.
Thanks to all who replied. It's much appreciated.

Here the same problem with an A2017G model. Phone worked with the latest LineageOS, was rooted and got an unlocked bootloader, and with flashing to the the new B04 update phones ends up in a loop.
I can get into the stock recovery and when i choose "reboot system now" i get a screen wich tells you to lock your bootloader.
In recovery a can also choose "apply update from adb" or "apply update from sd card". With the first option i can flash a rom but at 25-30% adb ends up with an error.
With the second option i get a message "Sorry, can`t sdcard upgrade", and tryed several sd cards.
Phone will NOT boot into Android so i can`t change USB debgugging or something.
I can get in EDL mode and after "axon7tool -r gpt boot recovery" in adb the phone reboots with no errors and gets in a loop again. Grrrrr..... Very frustrating with a non working phone!

the_cyberspace said:
Here the same problem with an A2017G model. Phone worked with the latest LineageOS, was rooted and got an unlocked bootloader, and with flashing to the the new B04 update phones ends up in a loop.
I can get into the stock recovery and when i choose "reboot system now" i get a screen wich tells you to lock your bootloader.
In recovery a can also choose "apply update from adb" or "apply update from sd card". With the first option i can flash a rom but at 25-30% adb ends up with an error.
With the second option i get a message "Sorry, can`t sdcard upgrade", and tryed several sd cards.
Phone will NOT boot into Android so i can`t change USB debgugging or something.
I can get in EDL mode and after "axon7tool -r gpt boot recovery" in adb the phone reboots with no errors and gets in a loop again. Grrrrr..... Very frustrating with a non working phone!
Click to expand...
Click to collapse
The command "axon7tool -r gpt boot recovery" only backups your boot and recovery (-r = read, so of course only files *-backup.bin are created inside your PC directory, no change to the phone).
Since you have stock recovery, did you apply the full ROM A2017G-N-B04 (australian) from here:
https://forum.xda-developers.com/axon-7/how-to/download-center-factory-images-ota-t3606547 ?

dnlilas said:
Since you have stock recovery, did you apply the full ROM A2017G-N-B04 (australian) from here:
https://forum.xda-developers.com/axon-7/how-to/download-center-factory-images-ota-t3606547 ?
Click to expand...
Click to collapse
Yes but get an error in adb: cannot read 'rom.zip'

the_cyberspace said:
Yes but get an error in adb: cannot read 'rom.zip'
Click to expand...
Click to collapse
Did you try installing the ROM zip from inside the stock recovery?

dnlilas said:
Did you try installing the ROM zip from inside the stock recovery?
Click to expand...
Click to collapse
I can choose "apply update from ADB" and "apply update from SD card". When i choose the option from SD card i get a error: "sorry, can`t sdcard upgrade" and when i`m flash the rom in adb: "cannot read 'rom.zip' ".

Related

Wiley Fox Swift2+ Bootloader Unlock

It seems that unlocking the BootLoader on the WileyFox Swift2+ is even easier.
To unlock the boot loader (WARNING!!! This wipes your user data!!!)
Go To 'Settings - About Phone' Tap 'Build Number' seven times to enable 'Developer Options'.
Go To 'Developer Options' Enable 'Advanced Reboot', Enable 'OEM Unlocking'
...## not sure if these next few steps are even needed!!
Connect to computer running "Minimal ADB and Fastboot"
Open command window as administrator (To prevent Win10 messing around).
Enter command "fastboot oem unlock"
...##
Press the phone 'Power Off - Reboot - FastBoot'
PC detects device and states "Follow instructions on device screen"
Phone screen issues dire warnings about unlocking Bootloader.
Proceed and job done Bootloader is Unlocked (device at this point not rooted).
The stock Swift2+ Cyanogen Rom is no longer available - seek out the LineageOS rom instead
I unlocked my bootloader the other day and those are the same steps I did so I can confirm this works.
I then proceeded to root the phone with SuperSU 2.78. Worked a treat.
Swift 2 Plus and SuperSU
FelixPiers said:
I unlocked my bootloader the other day and those are the same steps I did so I can confirm this works.
I then proceeded to root the phone with SuperSU 2.78. Worked a treat.
Click to expand...
Click to collapse
Yes initially the only version of SuperSU I could find was v2.46, which kept failing.
Any help? My reboot menu doesn't have a fastboot option. Yes I have advanced reboot and oem unlocking enabled.
Edit: Sorted it. Turns out you have to reboot into the bootloader.
thejackle123 said:
Any help? My reboot menu doesn't have a fastboot option. Yes I have advanced reboot and oem unlocking enabled.
Edit: Sorted it. Turns out you have to reboot into the bootloader.
Click to expand...
Click to collapse
Is it too hard to google your question?
Works on most devices:
1) Turn off device
2) Hold VOLUME UP button
3) Connect device to PC via usb-cable
I installed SuperSU, before that I installed TWRP. Now I am unable to install the latest update "cm-marmite-a1478a0ee9-to-7aa1c797975e-signed"
When I download this update and perform the actual install, it gives an error. Restarting the phone via TWRP recovery gives the same error. I am getting "Error 7"
So no I want to revert back, to get rid off SuperSU and TWRP to install all updates and then later root the device with TWRP and SuperSU. How do I get the original state of the phone back?
Or do you have any advice how to get the latest update installed?
Thx.
SMessy said:
It seems that unlocking the BootLoader on the WileyFox Swift2+ is even easier.
To unlock the boot loader (WARNING!!! This wipes your user data!!!)
Go To 'Settings - About Phone' Tap 'Build Number' seven times to enable 'Developer Options'.
Go To 'Developer Options' Enable 'Advanced Reboot', Enable 'OEM Unlocking'
...## not sure if these next few steps are even needed!!
Connect to computer running "Minimal ADB and Fastboot"
Open command window as administrator (To prevent Win10 messing around).
Enter command "fastboot oem unlock"
...##
Press the phone 'Power Off - Reboot - FastBoot'
PC detects device and states "Follow instructions on device screen"
Phone screen issues dire warnings about unlocking Bootloader.
Proceed and job done Bootloader is Unlocked (device at this point not rooted).
The stock Swift2+ Cyanogen Rom is here
http://builds.cyngn.com/factory/marmite/cm-13.1.4-ZNH2KAS5RM-marmite-signed-fastboot-c64f8f5d87.zip
Click to expand...
Click to collapse
Hi, mate
unfortunately teh link to the stock rom is not working.
Can u provide me with another working link?
I deleted my rom and i can't find the stock to reanimate my phone.....
EDIT!!!!
All done, device is restored
THy @ll
Rom location
RayfG said:
Hi, mate
unfortunately teh link to the stock rom is not working.
Can u provide me with another working link?
I deleted my rom and i can't find the stock to reanimate my phone.....
EDIT!!!!
All done, device is restored
THy @ll
Click to expand...
Click to collapse
Just to confirm the stock room is still at this location as at 2nd march 2017
http://builds.cyngn.com/factory/marmite/cm-13.1.4-ZNH2KAS5RM-marmite-signed-fastboot-c64f8f5d87.zip
"Just to confirm the stock ROM is still at this location as at 2nd march 2017 :"
Link above does not work now, however below one does.
https://androidfilehost.com/?w=files&flid=126553
Hmmm. I'm going to try again. Before I got fastboot in red and Dvice Status: Locked. But I'll try again, see where I get.
Image of issue: https://ibb.co/jfLPye
edit: Updating to the latest Oreo update (8.1 I think)
---------- Post added at 08:34 AM ---------- Previous post was at 08:14 AM ----------
ohhhhhhh, I had to turn the phone off while connected, already running "adb & fastboot" (not just adb) then (phone connected in USB debugging mode) turn off the phone and hold volume up (no need to hole the power key as connected and I got the option to unlock with a warning that I may void the warranty. Then my phone encrypted/re-encrypted itself (I think it was already encrypted).
Now to flash TWRP (3.2 I think) and flash a custom ROM (Lineage 15.1 / 8.1 Oreo) Not sure if I should root or not. And if I do, should I root before installing 8.1?
got damit i never understand how to flash twrp i followed what google said.
fastboot flash recovery XXX.img it does its thing i reboot still no recovery im on stock cm12 ? i think or cm13 android 6.0)
Hi, trying to unlock my S2+ bootloader with Ubuntu MATE. Have completed all the steps listed, entered fastboot oem unlock into the terminal which now just sits there displaying < waiting for any device >
Any idea where I go from here?
bl91 said:
Hi, trying to unlock my S2+ bootloader with Ubuntu MATE. Have completed all the steps listed, entered fastboot oem unlock into the terminal which now just sits there displaying < waiting for any device >
Any idea where I go from here?
Click to expand...
Click to collapse
your device isn't picked up by fastboot ...first of all install the very latest version of adb ...using the usual Ubuntu story
sudo apt-get install adb
sudo apt-get upgrade
sudo apt-get update
sudo reboot
then switch on your device
go to /settings/about/buildnumber
click until developer settings are enabled
go to developer settings
toggle oem unlock to on
toggle adb to on
WITHOUT SWITCHING OFF
connect device to pc/laptop with original orange wileyfox cable
now your Ubuntu machine
must install drivers and Mount the phone so it should appear as a mounted volume on desktop
now open a terminal
now run the following :
sudo adb
sudo adb devices
now look on your phone and pull down the notification shadse ..make sure you have adb connected and file transfer mode ..if not change from charge to file transfer ...
there should be a pop up window on phone screen asking for permission for adb ..select allways allow and give pernission / authorization ..
now in terminal run adb devices and it should return some value as connected device
run:
adb reboot bootloader
phone will reboot to bootloader
run:
fastboot oem unlock
*use volume up to select yes
**beware will erase DATA ...
***if it doesn't work and adb and fastboot doesn't detect your device it is a driver problem but i haven't used Ubuntu in ages so can't remember steps to update your drivers other than updating the whole adb package
****some ubuntu instructions might be a little off as I've explained previously it's been a while
*****your waiting for device means
-adb service didn't start
+try "sudo adb"
-adb drivers out of date
+try sudo apt-get update
-adb on device not toggled to on
+toggle adb in dev settings
*adb authorization not given **should still see unauthorized device
-bad usb cable
+try another usb cable
-bad usb port
+try a different usb port
_____for clarity double check Ubuntu adb instructions and commands but this should put you on the right track____
---------- Post added at 08:30 AM ---------- Previous post was at 08:19 AM ----------
reggiexp said:
got damit i never understand how to flash twrp i followed what google said.
fastboot flash recovery XXX.img it does its thing i reboot still no recovery im on stock cm12 ? i think or cm13 android 6.0)
Click to expand...
Click to collapse
don't reboot immediately ..stock recovery will be flashed back over twrp
*i assume you know how to get to fastboot
adb reboot bootloader
fastboot oem unlock
*volume up for yes
fastboot flash recovery recovery.img
*make sure you have a copy of twrp called recovery.img in adb folder
when it says sending...
then is says writing ...
then it says done
DON'T REBOOT
UNPLUG USB
***MANUALLY BOOT TO BOOTLOADER USING VOLUME UP AND POWER
**** IN BOOTLOADER SELECT "RECOVERY"
you should then just wait on wileyfox first time it takes a minute or two don't know why then
it should boot to twrp
***you can take stock boot.img and patch it with magisk
-use: fastboot flash boot boot.img
-then you will have magisk and rooted
-using twrp apk or something like root rasher or flasher ..give apk root permission
-download twrp ..flash with apk from inside system ..after flashing select yes to reboot directly to recovery
Thanks very much, I've unlocked my bootloader now! Onto the TWRP, Magisk and LineageOS business now
bl91 said:
Thanks very much, I've unlocked my bootloader now! Onto the TWRP, Magisk and LineageOS business now
Click to expand...
Click to collapse
okay no problem
*i know everybody likes lineage and its usually more stable and the base for many custom roms
however just my 2cents worth ...i tried all the roms for our device ..but the by far the best for me was following the tutorial on how to make our device treble compatible ..
Then ...after 3-4 months of trying different treble GSI's i have stopped on Viper Official Pie 64bit A-only treble system.img ... at least give it a try after trying out lineageOs ..
you might thank me .
I can't get my device to show up usb debugging is on, Advanced Reboot', 'OEM Unlocking' etc. I've been trying for hours and hours. It shows up to transfer files if I want that mode so my PC is recognising it, but it doesn't seem to have drivers for adb. I've tried installing google usb drivers and also this: https://afterthoughtsoftware.com/posts/using-adb-with-wileyfox-swift
sorry if I haven't explained clearly, I'm just so sleepy from going around in circles. :|
I've rooted phones before and never had this issue. please can anybody help?
edit: have fixed I think! did two things at once so not sure which. I revoked usb devices so that my computer would have to ask permission again to connect (or something like this) and also clicked a thing on my PC to allow it to update what I think said driver icons automatically, which I wouldn't have thought would help, but it seemed to find the adb driver this time. I'd probably make more sense if it weren't 1am. :|
When i got my Swift 2 X, it came updated with 8.1 Oreo out of the box and the issue I had was unlocking the bootloader.
Sure fastboot oem unlock unlocked so I could flash recovery and roms but whenever I tried flashing a bootloader via fastboot, it gave me "FAILED (remote: Critical partition flashing is not allowed)". So that part was still locked.
This I fixed way back after searching around on my own about it but since the solution to this aint mentioned around here and I can't be the only one who have encountered this I think, I am just gonna add it in here.
There are now other commands to unlock your device, fastboot flashing unlock that does the exact same thing that fastboot oem unlock does and fastboot flashing unlock_critical is the command that unlocks the bootloader.
Both commands prompts you with the usual to confirm unlock and wipes your data.
It doesn't matter if you already unlocked the device with the oem command or flashing command, fastboot flashing unlock_critical should be able to unlock the bootloader either way.
My swift was also at 8.1 I had no problem unlocking the bootloader.
DH
RavZ75 said:
When i got my Swift 2 X, it came updated with 8.1 Oreo out of the box and the issue I had was unlocking the bootloader.
Sure fastboot oem unlock unlocked so I could flash recovery and roms but whenever I tried flashing a bootloader via fastboot, it gave me "FAILED (remote: Critical partition flashing is not allowed)". So that part was still locked.
This I fixed way back after searching around on my own about it but since the solution to this aint mentioned around here and I can't be the only one who have encountered this I think, I am just gonna add it in here.
There are now other commands to unlock your device, fastboot flashing unlock that does the exact same thing that fastboot oem unlock does and fastboot flashing unlock_critical is the command that unlocks the bootloader.
Both commands prompts you with the usual to confirm unlock and wipes your data.
It doesn't matter if you already unlocked the device with the oem command or flashing command, fastboot flashing unlock_critical should be able to unlock the bootloader either way.
Click to expand...
Click to collapse
bubba_66 said:
My swift was also at 8.1 I had no problem unlocking the bootloader.
DH
Click to expand...
Click to collapse
Doesn't seem that many who have this lock on their bootloaders, the only ones I could find here who had locked bootloaders the same way as I had are in the LineageOS 14.1 thread.
So at least I am not alone with that but sure makes me wonder how it is so for some while others not.
After unlock bootloader Everytime reboot always like this https://ibb.co/NSZR818

*SOLVED* Embarrassed to ask for help - but please help!

Hi guys,
Unable to boot after c*cking up a manual upgrade from B10 to B11 on my A2017G and would love your input. I feel like if I can just install TWRP again it should be an easy fix. Here's some specifics:
1. my phone is unlocked, rooted and running stock firmware.
2. I was trying to install stock recovery to install the B11 update. I did so but also tried to install another zip (B10 bootloader?) which I seem to have flashed wrong. Now just get the screen as shown on attachment and cannot boot.
3. Stock recovery seems to have been flashed and I can boot to this. From here I can boot to bootloader but can't seem to do anything from there.
4. I try update via ADB with the sideload command, but get the message "E:footer is wrong. E: Signature verification failed. Installation aborted".
5. I try to Update from SD as have the firmware zip file and TWRP on the root of my external SD card, but get the message "Couldn't Mound /sdcard, aborted."
6. The only time my phone shows as a connected device in ADB is when I try to sideload files. No other ADB code seems to work, only get the message "error: closed" on the terminal.
Assuming I've got all the firmware files (and full backups on my external SD) I feel like if I can just install TWRP again it should be an easy fix. So, any ideas on how I install TWRP given situation above?
Best,
Neil
nstirton said:
Hi guys,
Unable to boot after c*cking up a manual upgrade from B10 to B11 on my A2017G and would love your input. I feel like if I can just install TWRP again it should be an easy fix. Here's some specifics:
1. my phone is unlocked, rooted and running stock firmware.
2. I was trying to install stock recovery to install the B11 update. I did so but also tried to install another zip (B10 bootloader?) which I seem to have flashed wrong. Now just get the screen as shown on attachment and cannot boot.
3. Stock recovery seems to have been flashed and I can boot to this. From here I can boot to bootloader but can't seem to do anything from there.
4. I try update via ADB with the sideload command, but get the message "E:footer is wrong. E: Signature verification failed. Installation aborted".
5. I try to Update from SD as have the firmware zip file and TWRP on the root of my external SD card, but get the message "Couldn't Mound /sdcard, aborted."
6. The only time my phone shows as a connected device in ADB is when I try to sideload files. No other ADB code seems to work, only get the message "error: closed" on the terminal.
Assuming I've got all the firmware files (and full backups on my external SD) I feel like if I can just install TWRP again it should be an easy fix. So, any ideas on how I install TWRP given situation above?
Best,
Neil
Click to expand...
Click to collapse
Are you able to boot into EDL mode by typing ADB reboot edl ?
If so you can flash desired recovery with axon7tool
marcus.linkenbach said:
Are you able to boot into EDL mode by typing ADB reboot edl ?
If so you can flash desired recovery with axon7tool
Click to expand...
Click to collapse
Hi, thanks for your reply. Unfortunately not, just get the message "error: closed" in the terminal. Is there a button combination I could press in order to get into EDL?
nstirton said:
Hi, thanks for your reply. Unfortunately not, just get the message "error: closed" in the terminal. Is there a button combination I could press in order to get into EDL?
Click to expand...
Click to collapse
Try vol+ + vol- + power
it seems that the only time my device will show as connected in ADB is when I navigate through Recovery and select the "Apply Update from ADB" option. But even then, whilst it shows as connected, it only seems to allow the "sideload" command. Please see screenshot of Terminal. So at no other time will it show as a connected device.
Similarly, to have it show up in Device Manager, it'll only show when I switch the phone off, hold down Vol+ & Vol- and attached the power cable.
You are still on MM. So you are able to boot into bootloader.
adb reboot bootloader
fastboot devices
Now it should show your device as fastboot
If so you can now flash recovery with “fastboot flash recovery recovery.img“
marcus.linkenbach said:
You are still on MM. So you are able to boot into bootloader.
adb reboot bootloader
fastboot devices
Now it should show your device as fastboot
If so you can now flash recovery with “fastboot flash recovery recovery.img“
Click to expand...
Click to collapse
Thanks for your reply. Unfortunately as mentioned the only time my device shows as connected in Terminal is when I select "Update via ADB" whilst in recovery. Otherwise the device never shows as connected in adb.
So unfortunately fastboot doesn't seem to be an option for me.
Perhaps my drivers are out of whack but assuming what I've done to my phone hasn't changed that, it must be something PC - side.
nstirton said:
Thanks for your reply. Unfortunately as mentioned the only time my device shows as connected in Terminal is when I select "Update via ADB" whilst in recovery. Otherwise the device never shows as connected in adb.
So unfortunately fastboot doesn't seem to be an option for me.
Perhaps my drivers are out of whack but assuming what I've done to my phone hasn't changed that, it must be something PC - side.
Click to expand...
Click to collapse
But what if it shows your device as sideload? Can't you there reboot into fastboot?
No, it doesn't accept the command. Only one accepts is sideload. You can see from my screenshot a few posts back that the device is connected but shows different to how it normally would.
Breakthrough!
I seemed to follow the steps I've tried 100 times today and I now have TWRP installed again!
Thanks again to those who helped

And now what i do with my Axon 7?

Hello everyone. Meanwhile you excuse me for imperfect English but I use translator, my English language is rusted...
I have a A2017G, I have managed to unlock the bootloader, install TWRP and SuperSu on 6.0.1 version But then I have had the nice idea to update to 7.1.1 then have put update. zip file (renamed), in SD card, turn off the terminal, enter into TWRP but it Disappear!!! Only Originale...io recovery make flash and device updated to B09.
I want to install TWRP and SuperSu and put alternative ROMs but I can't do anything! If I open PowerShell window in adb folder and command "ADB reboot bootloader", the device reboot and appear a screen where to " your devices software can't be checked for corruption, please lock the bootloader", ecc ecc, If I squeeze volume on, it will get into recovery, if I don't do anything it reboot normally.
I can not get into fastboot mode, I fail to install TWRP. What is the best way to go back? or reset everything and start again? I have tried to downgrade from Nougat to MM via SD but after about 1 minute of analysis I aborted the installation....
However the phone will work normally even without all these things but I have purchased ZTE for modding and I don't bear to have half fatto...in work the most difficult thing to be unlocking the bootloader and I do this thing...
Let me link you my ingenious, allmighty Axon 7 Companion Thread.
Try to install twrp with MiFlash if you can enter edl mode
macerf said:
Hello everyone. Meanwhile you excuse me for imperfect English but I use translator, my English language is rusted...
I have a A2017G, I have managed to unlock the bootloader, install TWRP and SuperSu on 6.0.1 version But then I have had the nice idea to update to 7.1.1 then have put update. zip file (renamed), in SD card, turn off the terminal, enter into TWRP but it Disappear!!! Only Originale...io recovery make flash and device updated to B09.
I want to install TWRP and SuperSu and put alternative ROMs but I can't do anything! If I open PowerShell window in adb folder and command "ADB reboot bootloader", the device reboot and appear a screen where to " your devices software can't be checked for corruption, please lock the bootloader", ecc ecc, If I squeeze volume on, it will get into recovery, if I don't do anything it reboot normally.
I can not get into fastboot mode, I fail to install TWRP. What is the best way to go back? or reset everything and start again? I have tried to downgrade from Nougat to MM via SD but after about 1 minute of analysis I aborted the installation....
However the phone will work normally even without all these things but I have purchased ZTE for modding and I don't bear to have half fatto...in work the most difficult thing to be unlocking the bootloader and I do this thing...
Click to expand...
Click to collapse
Your phone works normally
You don't have fastboot
You have stock recovery
If this is the case then most surely you have EDL working...
Install TWRP from EDL mode:
This is taken from Controllerboy's guide
BE SURE THAT WINDOWS SHOWS FILE NAME EXTENSIONS!
A) Flashing TWRP Recovery to your device.
Q: Why do I need TWRP?
A: TWRP is a custom recovery system. It lets your backup your system in case anything goes wrong. It also lets you flash custom ROMs and zip files containing patches like viper4android or A.R.I.S.E. (audio) and root your device via SuperSU.
0) Boot up a windows computer with a 64bits processor. Verify your Axon 7 is charged at least 75%. Temporarily disable your antivirus software to allow axon7tool to work.
1) Backup all the data of your phone's internal memory that you don't want to lose. Copy it to your PC
2) Download the axon7tool from here: http://www.filedropper.com/axon7tool-15-win64
3) Download minimal adb and fastboot from here: https://www.androidfilehost.com/?fid=457095661767103465
4) Unzip the minimal adb and fastboot file, place the folder with the files in it somewhere you can easily find it
5) Place the axon7tool exe in the same folder as adb.exe and rename it to "axon7tool.exe" (it's easier to work with that way)
6) Download the TWRP .img and .bin files from here: https://drive.google.com/open?id=0B4...nlaZU1NRldoRjA
7) Place the TWRP .img file in the same folder as "adb.exe" and "axon7tool.exe", rename it to "recovery.img"
8) Make a copy of the "recovery.img" file and name it "recovery.bin". Leave it in the same folder
9) Go to settings in your phone and go to "About Phone". Tap "Build Number" 7 times to make the Developer Options available
10) Go to "Developers options" and tick "Allow OEM unlock" and "Android Debugging"
11) Connect your Axon 7 to your PC
12) Open a command window by holding shift and right-clicking in a blank space in the folder where the "adb.exe", " axon7tool.exe", "recovery.img" and "recovery.bin" files are located. Click "Open command window here"
13) Type "adb devices" and hit enter. You should see one device with some code listed
14) Type "adb reboot edl" and hit enter. Your device will reboot to EDL mode. It appears to be off, but it is in fact in EDL mode.
15) Go to Device Manager on your pc and verify your Axon 7 is listed as "QUSB_BULK"
16) In command, type "axon7tool -r gpt boot recovery" and hit enter
17) After it is executed, your phone will reboot. Wait until it has fully booted.
18) In command, type "adb reboot edl"
19) Verify you now have 3 backup files in your ADB folder for gpt, recovery and boot. These are backup files in case something goes wrong
20) In command, type "axon7tool -w recovery"
21) Wait until it finishes
22) Your phone should reboot
23) Shut down your phone and boot it to TWRP by holding both the power and volume up button to verify you have TWRP
24) TWRP might ask you for a password. If it does, simply tap cancel. It will ask you if you want to modify system. Swipe to agree
NOTE: if you have problems connecting to your phone as QUSB_BULK, download Zadig and replace your drivers with WinUSB ones. If axon7tool doesn't recignise your device even when connected as QUSB_BULK, try killing adb.exe via task manager before retrying.
Hello and thanks for the guide.
I have tried this system... be gone everything OK up to number 16... when I type "Axon7tool -r gpt boot recovery ", the command window should be written "Failed to connect "... and yet the device is in EDL mode.
Be all right, on Device Manager be seen as "QUSB_BULK ", the cable being original, all steps 1 to 16 be ok...io no longer know what to do.
macerf said:
Hello and thanks for the guide.
I have tried this system... be gone everything OK up to number 16... when I type "Axon7tool -r gpt boot recovery ", the command window should be written "Failed to connect "... and yet the device is in EDL mode.
Be all right, on Device Manager be seen as "QUSB_BULK ", the cable being original, all steps 1 to 16 be ok...io no longer know what to do.
Click to expand...
Click to collapse
Easy. Hold all 3 keys (power, vol up and down) until Device Manager refreshes (you'll see it as the list of devices contracting), and close CMD. Open it again and do step 16 again
Choose an username... said:
Easy. Hold all 3 keys (power, vol up and down) until Device Manager refreshes (you'll see it as the list of devices contracting), and close CMD. Open it again and do step 16 again
Click to expand...
Click to collapse
Hello and thanks for the advice. Unfortunately it does not change anything.. I have done exactly as you say but the result does not change anything...io have connected the device, Open command window, type "adb devices ", is viewed as "Cd07b2e9 device ", I type "adb reboot EDL ", it restarts in EDL, then go to management Devices and is viewed as "QUSB_BULK ", Run command "Axon7tool-r GPT boot recovery " but it says "Failed to connect ", then I'll return to Device Manager, hold volume up & Down & Power, Icon disappears and returns after a few seconds, close window and launch command "Axon7tool-r GPT boot recovery " but still give "failed to connect "...
So, recapping: I have bootloader unlocked, I can get into EDL but PC does not see device although on Device Manager it exists...
I now launch device into the wall... problem solved.
if you really slammed it against the wall, i would love to buy the back housing and speaker grills. hopefully, you were just illustrating frustration (it is a frustrating scenario), and will reach a resolution, but if you actually did smash it, i could use some parts.
kitcostantino said:
if you really slammed it against the wall, i would love to buy the back housing and speaker grills. hopefully, you were just illustrating frustration (it is a frustrating scenario), and will reach a resolution, but if you actually did smash it, i could use some parts.
Click to expand...
Click to collapse
Of course I'm kidding... have just purchased this device, have a great hardware but the software does not go well for nothing. I have had a dozen phones, I changed about 60 ROMs, so for me it is not difficult to change the software...ma in this case have problems. Is it possible that I fail to solve this problem? Be a way to reset everything and start from scratch? Okay, the bootloader be unlocked but not be any other way to go back? I have seen many guides but not able to solve the problem. I fail to make flash of TWRP, fail to do downgrade to MM....io hope someone help me... thanks.
are you using a USB 2.0 or 3.0 port? it may not apply to this scenario, but with Motorola and RSD Lite, I always had to use usb 2.0 ports or it wouldnt see my device when flashing.
also, the steps @choose an username listed out are the best way to start from scratch, but obviously you have to be able to have your computer see the phone in the desired mode.
@DrakenFX has several guides in the axon 7 forums that should help once the computer sees the phone as well.
I use USB 3.0 with original cable ... but if you now tell me that maybe this is my problem, then I use USB 2.0. Thank you...
Good morning...
Nothing to do... I put the original cable on USB Port 2.0, have redone procedure from window PowerShell, on command "adb devices " Everything OK, on command "adb reboot EDL " It enters EDL mode, but then all the procedures are failed... if command "Axon7tool-R recovery GPT boot "I always get out of the inscription " Failed to connect ", it remains in EDL and I just have to reboot... I replaced the drivers with Zadig 2.3 but did not change anything... are there any other moors to make flash of TWRP? exist lthough an app that do this? I remember that for LG G3 I'll fix everything with an app...

Cannot root or unlock Bootloader

Hi,
I just bought Mi A1.
Now, I wanted to install oreo.
So I was trying to root and install twrp.
Now I'm no expert, I just follow the provided steps and have been successful with past devices.
Note :
1) Developer enabled
2) oem unlocking enabled
3) usb debugging enabled
So I'm using this https://forum.xda-developers.com/mi...l-one-driversunlocktwrpfactory-t3695256/page2
But, there are two issues :
1) When I click on Reboot in fastboot/bootloader mode , it shows this in command prompt : http://prntscr.com/i2sn1o
and in the app, it automatically disconnects from the device http://prntscr.com/i2sncw
2) While this is happening and I leave my device, it automatically goes out from fastboot to power off charging mode.
I tried on another pc too, and followed the steps according to video, still no luck.
And I tried manual methods too, like https://www.youtube.com/watch?v=tRcYUMBgvaI
no luck there either.
Please help.
your adb driver is not installed correctly i guess, happened to me too.
try "adb devices" and will show no devices, if this happen, is the adb driver issue.
this fixed for me.
https://forum.xda-developers.com/showthread.php?p=75163858#post75163858
riccetto80 said:
your adb driver is not installed correctly i guess, happened to me too.
try "adb devices" and will show no devices, if this happen, is the adb driver issue.
this fixed for me.
https://forum.xda-developers.com/showthread.php?p=75163858#post75163858
Click to expand...
Click to collapse
I don't know if there is issue with driver. Because during installation there was no error.
Also, when I command "adb devices" it shows me a device as number.
So it is able to connect to the device then right?
You must install adb drivers AND fastboot drivers separately. I always had to install them manually via device manager. If your phone reboots from fastboot mode automatically, I'm 99% sure that you do not have drivers installed correctly.
_mysiak_ said:
You must install adb drivers AND fastboot drivers separately. I always had to install them manually via device manager. If your phone reboots from fastboot mode automatically, I'm 99% sure that you do not have drivers installed correctly.
Click to expand...
Click to collapse
Hmmmmm. Ok, I'll do that then. Thanks buddy. I'll try again and reply back asap.!!

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...

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