How to use EDL Qualcomm Download cable - Moto G4 Plus Questions & Answers

Hello,
I have a moto g4 plus with locked bootloader and no OS.
I also have a EDL cable with button, but when i try it my device manager only adds (uknown device) and some error, but i cannot install the qualcomm on that device.
The device automatically goes to fastboot when plugging in usb mode.

You need EDL drivers and also press the button for about 8 seconds just after plugging in the device.
---------- Post added at 12:36 AM ---------- Previous post was at 12:30 AM ----------
There's another way to get into EDL mode that was posted, although it's for a xiaomi device. It uses a modified fastboot.exe to get he device boot into EDL mode...
https://forum.xda-developers.com/redmi-note-3/how-to/guide-reboot-to-edl-mode-fastboot-test-t3398718

Can you help me get the correct drivers?
Im affraid i have tried that method but it said booting to download mode.. and then (remote) command not found

http://www.androidbrick.com/download/qualcomm-qdloader-hs-9008-edl-usb-driver/
Clicking on the download link will give a .7z file, having QDLoader in the filename... The page is in Turkish though, please translate it.

I have installed the 64 bit one and pressed 8 seconds but still the yellow triangle and uknown usb(unknown device device descriptor request failed)

On the old LG G2, you have to short a capacitor with tweezers to put it in this mode--maybe the same for Athene

HueyT said:
On the old LG G2, you have to short a capacitor with tweezers to put it in this mode--maybe the same for Athene
Click to expand...
Click to collapse
how to do that, i have my phone dissambled now.

codGmer said:
I have installed the 64 bit one and pressed 8 seconds but still the yellow triangle and uknown usb(unknown device device descriptor request failed)
Click to expand...
Click to collapse
my phone is completely dead, no display no fastboot nothing shows on pc. but when I tried to boot it to edl it gives the same error as you faced even though I have all the drivers. if you have found a way to fix this, share with me and Qualcomm flasher rom of moto g4 plus.

emsumit said:
my phone is completely dead, no display no fastboot nothing shows on pc. but when I tried to boot it to edl it gives the same error as you faced even though I have all the drivers. if you have found a way to fix this, share with me and Qualcomm flasher rom of moto g4 plus.
Click to expand...
Click to collapse
Connect it to PC, then go device managers and show me the ports. Then screenshot and give me

Ayan Uchiha Choudhury said:
Connect it to PC, then go device managers and show me the ports. Then screenshot and give me
Click to expand...
Click to collapse
i'm unable to upload the image but it was showing unknown device (device descriptor request failed)
i used edl cable

emsumit said:
i'm unable to upload the image but it was showing unknown device (device descriptor request failed)
i used edl cable
Click to expand...
Click to collapse
Use a normal cable. If it detects anything as Qualcomm, then you're safe

Ayan Uchiha Choudhury said:
Use a normal cable. If it detects anything as Qualcomm, then you're safe
Click to expand...
Click to collapse
With normal cable its shows nothing. It was showing q loader 9008 before giving it to service center, but they did something, it doesn't now.
And now i know it could've fixed with Qualcomm flasher back then.. but now it doesn't connect anymore without edl cable.

edl cable
emsumit said:
With normal cable its shows nothing. It was showing q loader 9008 before giving it to service center, but they did something, it doesn't now.
And now i know it could've fixed with Qualcomm flasher back then.. but now it doesn't connect anymore without edl cable.
Click to expand...
Click to collapse
adb reboot edl

Related

[Guide] No Boot - No Recovery - No Download Mode Unbrick Guide

No Boot - No Recovery - No Download Mode Unbrick Guide​
Qualcomm HS-USB QDLoader 9008 or Secure booting error (No Boot - No Recovery - No Download Mode) or "QHSUSB_BULK"​
Hi team, if you have come here I'm sorry you are having this problem! But my friend and I have been to hell and back trying to fix this problem and we wanted to share our method of success for any poor soul who is experiencing the same thing! For our situation the USB was unplugged half way through flashing a KDZ or going back to stock firmware and created the No Boot - No Recovery - No Download Mode problem.
This has only been tested on the D855.. Just so you know.​
First off, here are some links which you may need to have a look at if you have not done so already. Most of the bricking problems have already been extensively talked about by people here on XDA. For the method that works, we had to pull information from everywhere and spent a long time looking for the solution.
How to go back to stock - http://forum.xda-developers.com/showthread.php?t=2785089
Link for TOTs and KDZ's from the above thread - http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/
The Main Fix for the problem - http://forum.xda-developers.com/lg-g3/general/fix-unbrick-lg-g3-stuck-qualcomm-hs-usb-t2933853
The G2 version of the fix (for reference if you still have problems 55+ pages) http://forum.xda-developers.com/lg-g2/general/fix-unbrick-lg-g2-stuck-qualcomm-hs-usb-t2933830
This is your last stop shop if everything is broken and nothing works, involves hardware fix - http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
The problem we encountered several times with all of the described methods above, is that many do not describe important things. While the main fix thread for the Qualcomm HS-USB QDLoader 9008 mode, which is shown in device manager, is very well written and detailed, the programs which are linked in this thread are questionable and haven't worked for many users with some offering to fix for money. We searched the internet and located a working version of the program which worked without giving a "Device was not found in dload trying to flash programmer" like the one provided on the XDA page. Use the links below for a working version from this thread http://androidforums.com/threads/lg-g2-not-turning-on-help.916865/
My first point is if you are having problems with any of the things, CHANGE YOUR USB CABLE or use the stock cable (I know most experienced users know this). The reason for this problem has something to do with different USB cables being made for different purposes and are of different qualities. Having an error on the USB ports gave us only qhsusb_bulk on windows device manager, without Qualcomm HS-USB QDLoader 9008 as well.
If you are still having problems, check your USB ports. It is really important to make sure this isn't the problem or you will be trying to fix this problem endlessly.
First attach the USB cable to the computer. When you plug your phone in, make sure you attempt to enter download mode by holding the volume up button when you plug the USB into your phone. Even though the phone will not enter "Download Mode" It will allow the phone to be detected by your computer (at which point you can release the buttons, it should then show "Qualcomm HS-USB QDLoader 9008" under ports. If this is not displayed you have a problem with the USB cable or port, or your phone is hard bricked and you need to head to the above guide for the hardware fix. If you have followed so far and are wondering what to do from here, once the "Main Fix" guide ends, head over to the "How to go back to Stock" thread above. Your phone should be showing "firmware upgrade" and you can proceed to flash a new updated KDZ on your device then everything will work and your nightmare should be over!
Working Boarddiag - https://drive.google.com/file/d/0BzkqP9M0LLWQUkEyRkZrVHlEbDg/view
Qualcomm USB Drivers (Essential for the aforementioned "Main Fix" above) - https://drive.google.com/file/d/0BzkqP9M0LLWQblF6Vl9OcUkwUDA/view
LG United Drivers (Phone Drivers) - https://drive.google.com/file/d/0BzkqP9M0LLWQUURDTHlYOW5YRms/view
If this helped you to fix your nightmare don't forget to hit the thanks button!
The "Wroking Boarddiag" asks for PW. aside from that, very good find, thanks
detected as qdloader hs usb 9008
board diag- ap check failed device not in downld mode
For all people with Windows 10 an problems with drivers (device is detected by Windows but app is not connecting). Decompress de correct cab for your Windows version, and update the driver "Qualcomm HS-USB QDloader 9008" with the path you used to extract. Now this driver isn't advertising that isn't signed anymore, and all apps will connect with your LG G3
Qualcomm HS-USB QDLoader 9008 2.1.0.5 x86
Qualcomm HS-USB QDLoader 9008 2.1.0.5 x64
Hi, I have the same problem, except that when I connect the usb, it shows up as "LGE AndroidNetUSB Serial Port". I'm not sure if I should try the Qualcomm route?
MrMuli said:
Hi, I have the same problem, except that when I connect the usb, it shows up as "LGE AndroidNetUSB Serial Port". I'm not sure if I should try the Qualcomm route?
Click to expand...
Click to collapse
I just fixed my Lg g3 with this method. Not sure if it will work with AndroidNetUSB
Would like to help for any difficulties. (e.g. Not able to find TOT file) etc.
Thanks to @Orcam & @kryptonite
This did not work. Here's what I tried:
1. Without battery
2. Changed drivers as @shawe_ewahs says
3. With battery
4. Admin and non-admin
5. Changing COM ports
But, every time, I get:
"Device was not found in dload trying flash programmer
TEST Aborted!!"
My LG G3 D851 is in Qualcomm HS_USB QDLoader 9008 (COM 41) so I know it is in the correct mode! Agh, it is very frustrating. Any help is appreciated. Thanks.
Thanks you SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO much! <3 I finally was able to fix my device *O*
furiify said:
Thanks you SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO much! <3 I finally was able to fix my device *O*
Click to expand...
Click to collapse
No problem. Hope it didn't take you as long as it took us to find all the right stuff
I'm having this problem, but when I plug in without a battery all that shows up in device manager is "Unknown USB Device (Device Descriptor Request Failed)". I tried to do the hardware fix and was able to force the device to reboot by touching the pins. But all that happens is it disconnects and reconnects from USB without being detected properly.
I should note that when I turn the phone on right now, it stays stuck in the initial LG G3 splash screen. When I plug in without a battery, it shows an empty battery icon with a wire and a triangle question mark.
Any idea what I'm doing wrong? I think if I can just figure out how to get my machine to detect my phone as the qdloader hs usb 9008 I can figure out the rest.
The boarddiag v3.99 version 1 and 2 dont work, they dont even get ejecuted, not eve trying to execute as administrator.
Just wanted to reply since I resolved my issue. It turned out that, despite the apparent inability to boot into download mode, I discovered that if I booted up the phone with a battery in it and plugged into a windows 7 laptop, and held the button down to enter download mode, it eventually let me into download mode. I really can't explain why this worked, but just wanted to put it out there. It was at least a few minutes before I noticed that the laptop chirped and it was showing the install screen in download mode.
Hope this helps someone out.
Dr1t3r said:
The boarddiag v3.99 version 1 and 2 dont work, they dont even get ejecuted, not eve trying to execute as administrator.
Click to expand...
Click to collapse
phaim said:
Just wanted to reply since I resolved my issue. It turned out that, despite the apparent inability to boot into download mode, I discovered that if I booted up the phone with a battery in it and plugged into a windows 7 laptop, and held the button down to enter download mode, it eventually let me into download mode. I really can't explain why this worked, but just wanted to put it out there. It was at least a few minutes before I noticed that the laptop chirped and it was showing the install screen in download mode.
Hope this helps someone out.
Click to expand...
Click to collapse
Sounds like it may be a problem with windows from what you two have said. Perhaps compatibility mode is the way to go. They did release a pretty major windows 10 update since I posted this guide.

Bricked Oneplus 2 not getting detected on pc

Can anyone tell me a way so that the pc detects my bricked OPT? I have tried all combinations but its not getting detected at all
phorcus said:
Can anyone tell me a way so that the pc detects my bricked OPT? I have tried all combinations but its not getting detected at all
Click to expand...
Click to collapse
https://forums.oneplus.net/threads/...ck-guide-for-a-hard-bricked-oneplus-2.347607/
Rebel7022 said:
https://forums.oneplus.net/threads/...ck-guide-for-a-hard-bricked-oneplus-2.347607/
Click to expand...
Click to collapse
finally it got detected but when i run MSM8994DownloadTool.exe as administrator and click on start nothing happens
https://1.bp.blogspot.com/-ZZ-sHUBv...ExaIdiLCYRNQCLcB/s1600/Screenshot+%284%29.png
this is where i am stuck please help guys i am in a fix :'(
Are you sure you disabled driver signature enforcing in Windows? You can't install the qualcomm 9008 serial interface driver without doing this, as this driver is not signed by Microsoft.
pitrus- said:
Are you sure you disabled driver signature enforcing in Windows? You can't install the qualcomm 9008 serial interface driver without doing this, as this driver is not signed by Microsoft.
Click to expand...
Click to collapse
yes i did still it doesn't work, any help would be appreciated
If you power up your phone using volume up in fastboot/bootloader mode and then run fastboot devices, does it list your phone? Just making sure the cable connection works.
If yes, then power down your phone by holding power button until screen goes black (making sure you disconnected usb cable first). Then hold volume up while connecting usb cable (don't touch power button), you should hear Windows detecting a new device, check device manager to see that the qualcomm 9008 usb serial port has been successfully installed and with no warning exclamation mark on it. If all is good, you should now be able the launch the download tool and push the download button to start downloading the file partitions to the phone.
pitrus- said:
If you power up your phone using volume up in fastboot/bootloader mode and then run fastboot devices, does it list your phone? Just making sure the cable connection works.
If yes, then power down your phone by holding power button until screen goes black (making sure you disconnected usb cable first). Then hold volume up while connecting usb cable (don't touch power button), you should hear Windows detecting a new device, check device manager to see that the qualcomm 9008 usb serial port has been successfully installed and with no warning exclamation mark on it. If all is good, you should now be able the launch the download tool and push the download button to start downloading the file partitions to the phone.
Click to expand...
Click to collapse
Thanks a lot for writing out to me, but the thing is that my phone is already dead and i had given up all the hope that i had but luckily it got detected and i cannot boot into fastboot mode or bootloader mode the screen is already black, do you think i still have hope? the phone has been detected as qualcomm 9008 in ports in device manager
phorcus said:
Thanks a lot for writing out to me, but the thing is that my phone is already dead and i had given up all the hope that i had but luckily it got detected and i cannot boot into fastboot mode or bootloader mode the screen is already black, do you think i still have hope? the phone has been detected as qualcomm 9008 in ports in device manager
Click to expand...
Click to collapse
Could it be that the actual screen is dead on your phone? But still, since the PC detects the debug port, it should start restoring the phones partitions when you start downloader tool and press the download button up to the left.

Weird wording in fastboot mode

So I recently booted my Oneplus 5 into fastboot, just because.
And for some reason my device name is QC Reference Phone.... what the heck!
Has the factory QC phone somehow ended up being packed up and shipped out to me?
Can anyone else check their device and see if it says anything similar.
Got a pic?
I have same thing
Same for me.
same here and cant get fastboot working also can flash twrp
Same here and it is also strange that I can't connect with my windows.
- the cmd: Fastboot devices
doesn't return the serial number.
---------- Post added at 03:10 PM ---------- Previous post was at 03:00 PM ----------
hounter17 said:
same here and cant get fastboot working also can flash twrp
Click to expand...
Click to collapse
Did you already got an solution for your fastboot?
hmm wierd mine said the same
i can boot into fastboot
so i have allready unlocked oem an rooted
Unable to connect OnePlus 5 to windows 10, Fastboot reads phone as QC Reference Phone
I am having the same issue. Oneplus 5 is not being recognized as a valid USB device in windows 10.
In fast boot the device shows as a QC REFERENCE PHONE.
Please Help.....do i need a replacement ?
hounter17 said:
same here and cant get fastboot working also can flash twrp
Click to expand...
Click to collapse
didt u enable debug an oem in developer before u enter fastboot
Jonnyn93 said:
So I recently booted my Oneplus 5 into fastboot, just because.
And for some reason my device name is QC Reference Phone.... what the heck!
Has the factory QC phone somehow ended up being packed up and shipped out to me?
Can anyone else check their device and see if it says anything similar.
Click to expand...
Click to collapse
I am having the exact same issue...
Got the same problem. After some reboots and USB Debugging on/off the device was shown as a drive in Windows. Then there was a driver in this Drive. Installed. Problem solved. My Phone is shown as QC Reference Phone but Everything working great yet. (Fastboot, Sideload, USB Debugging, File Transfer)
When i connect my phone with te pc I hear te tone from recognizing or making contact ,but there is no drive visible as a folder in explorer. Ofcourse In die all settings in the developer options.
I'm missing the right driver. But I tried several.
Oneplus 5 showing up as Qualcomm HS-USB Diagnostics 900E
I got my OP5 today in the mail and the phone itself is working fine.
Although when connected to PC(Windows 10 64bit) it says "USB device not recognized". - Have already tried to set USB to MTP in developer Options.
And the device connected Reads "Qualcomm HS-USB Diagnostics 900E", did i receive a bricked Phone from the company ?
PLEASE HELP.
---------- Post added at 02:29 PM ---------- Previous post was at 02:27 PM ----------
Spider1996 said:
Got the same problem. After some reboots and USB Debugging on/off the device was shown as a drive in Windows. Then there was a driver in this Drive. Installed. Problem solved. My Phone is shown as QC Reference Phone but Everything working great yet. (Fastboot, Sideload, USB Debugging, File Transfer)
Click to expand...
Click to collapse
@Spider1996 :
This is my issue, any thoughts on that.
I got my OP5 today in the mail and the phone itself is working fine.
Although when connected to PC(Windows 10 64bit) it says "USB device not recognized". - Have already tried to set USB to MTP in developer Options.
And the device connected Reads "Qualcomm HS-USB Diagnostics 900E", did i receive a bricked Phone from the company ?
PLEASE HELP.
This was my Problem too. The normal USB Drivers from other devices are not working. Try to delete the driver in the device Manager from Windows and replug (with usb Debugging enabled and disabled) until a new drive is shown in Windows. After that install one of the .exe from this Drive. This helped me
---------- Post added at 04:45 PM ---------- Previous post was at 04:34 PM ----------
There are the Drivers from my Device Folder (Windows, Mac and Linux)
https://www.dropbox.com/s/nc7mgnj1k8kli92/OP5 Drivers.rar?dl=0
Try to use them for your OP5 in the device manager.
I think your device is not bricked/corrupted whatever
-fluffy- said:
didt u enable debug an oem in developer before u enter fastboot
Click to expand...
Click to collapse
yes i did it
I have the same thing. QC reference phone, no BL version or baseband version shown in fastboot mode. I also could not flash TWRP. I could fastboot reboot and see the device's serial # in fastboot but it wouldnt report the target size and errored out saying the file was too big for the target or something along those lines. I updated my ADB and fastboot EXEs just in case. What ended up working was switching USB ports on my laptop, despite the fact I use that one all the time and it was still recognized by fastboot. Hope this helps.
hibby50 said:
I have the same thing. QC reference phone, no BL version or baseband version shown in fastboot mode. I also could not flash TWRP. I could fastboot reboot and see the device's serial # in fastboot but it wouldnt report the target size and errored out saying the file was too big for the target or something along those lines. I updated my ADB and fastboot EXEs just in case. What ended up working was switching USB ports on my laptop, despite the fact I use that one all the time and it was still recognized by fastboot. Hope this helps.
Click to expand...
Click to collapse
just the same happend to me, so u finally flash the recovery and root or nay??
y try all the usb ports and nothing...
hounter17 said:
just the same happend to me, so u finally flash the recovery and root or nay??
y try all the usb ports and nothing...
Click to expand...
Click to collapse
I got the recovery to flash yes. It took me a while. It didn't stick because I didn't delete that file you have to delete but it flashed and booted into TWRP eventually.
hibby50 said:
I got the recovery to flash yes. It took me a while. It didn't stick because I didn't delete that file you have to delete but it flashed and booted into TWRP eventually.
Click to expand...
Click to collapse
so the only solution is to try in different usb plugs till it goes on someone?
wich file i must delete?
pritamk88 said:
I am having the exact same issue...
Click to expand...
Click to collapse
So maybe it isn't an issue, I'm not sure.
Oneplus replied "QC means qualcomm". So does this mean the phone is based off of a qualcomm reference board, and they just slapped it into a oneplus shell....

Bricked phone but can still get into EDL mode

Okay so long story short: I unlocked my bootloader, flashed twrp and things like that and tried to flash lineage. This was all using the Axon 7 tool. I did something wrong and now I can't get into any other mode but EDL mode. The phone shows up in Miflash but I always get some "cant read hello packet error" and it tries to "reset" and end it eventually just stops and gives me an error. Plz help.
daevion0 said:
Okay so long story short: I unlocked my bootloader, flashed twrp and things like that and tried to flash lineage. This was all using the Axon 7 tool. I did something wrong and now I can't get into any other mode but EDL mode. The phone shows up in Miflash but I always get some "cant read hello packet error" and it tries to "reset" and end it eventually just stops and gives me an error. Plz help.
Click to expand...
Click to collapse
I assume you're not on Windows 10 x64? If you aren't, either get a PC with Win10 x64, or do this:
Connect the phone, get into EDL mode. Now go to the Device Manager, and tell me where it appears.
It can appear as:
-"Qualcomm HS-USB QDLoader 9008" under Ports (COM & LPT);
-"ZTE DFU Interface, under Ports too; or
-"QUSB_BULK" under Universal Serial Bus devices or unknown devices.
If it appears as the DFU stuff, you'll have to follow the 4th category brick repair guide. If it appears as QDLoader, right click on it, then Properties, then go to Bits per second and put the number at 115200 or 128000 if it's not there. Then hold the 3 buttons (vol and power) until Windows beeps and the device manager spazzes and the phone flashes the red led, then try MiFlash again.
If it appears as QUSB_BULK, uninstall the driver (tick delete driver software too) and restart edl.
Choose an username... said:
I assume you're not on Windows 10 x64? If you aren't, either get a PC with Win10 x64, or do this:
Connect the phone, get into EDL mode. Now go to the Device Manager, and tell me where it appears.
It can appear as:
-"Qualcomm HS-USB QDLoader 9008" under Ports (COM & LPT);
-"ZTE DFU Interface, under Ports too; or
-"QUSB_BULK" under Universal Serial Bus devices or unknown devices.
If it appears as the DFU stuff, you'll have to follow the 4th category brick repair guide. If it appears as QDLoader, right click on it, then Properties, then go to Bits per second and put the number at 115200 or 128000 if it's not there. Then hold the 3 buttons (vol and power) until Windows beeps and the device manager spazzes and the phone flashes the red led, then try MiFlash again.
If it appears as QUSB_BULK, uninstall the driver (tick delete driver software too) and restart edl.
Click to expand...
Click to collapse
I'm on win10 64bit
daevion0 said:
I'm on win10 64bit
Click to expand...
Click to collapse
Then do everything I described above or just try another PC. It always happens that one PC can be decided not to let you unbrick your phone for some reason
Choose an username... said:
Then do everything I described above or just try another PC. It always happens that one PC can be decided not to let you unbrick your phone for some reason
Click to expand...
Click to collapse
Is there no other option? is there no other way to at least get fast boot mode back on my phone?
daevion0 said:
Is there no other option? is there no other way to at least get fast boot mode back on my phone?
Click to expand...
Click to collapse
Lol nope, not if EDL is not working for you. You still didn't tell me whether you have a DFU brick or not. If you do have a DFU brick the only surefire way is to disassemble your phone and short a testpad, so don't complain.
Try what I told you above. It may be that it's set at 9600 baud
daevion0 said:
Okay so long story short: I unlocked my bootloader, flashed twrp and things like that and tried to flash lineage. This was all using the Axon 7 tool. I did something wrong and now I can't get into any other mode but EDL mode. The phone shows up in Miflash but I always get some "cant read hello packet error" and it tries to "reset" and end it eventually just stops and gives me an error. Plz help.
Click to expand...
Click to collapse
1. You must use "Qualcomm HS-USB QDLoader 9008" driver (there is another one call zidag but it's not work here)
2. As soos as you enter EDL mode, you must press "Flash" as quick as possible
i'm in a similar situation... i did "fastboot oem lock" and now i'm in a loop trying to boot the phone, after the 3time it enters edl (i see the red light).
My model is de G model (2017G) can i use miFlash just to restore the recovery and fastboot?
i had installed lineageOS, when connecting my phone it says that is the U model (2017U) but i think is only a label tag from the rom...
Thansks for the help!!
A 64 bit computer is not really necessary, however it is adviced.
I used a 32bit laptop running Win 10 to rescue mine.
Drivers seem to be a major problem, having the correct up to date drivers is a must.
Also try using Edl Tool and the Axon7 tool kit to access flashing.
Zadig drivers can help in some instances.
With the error you are receiving, have you tried another Edl package?
I was using an Edl package that would not finish flashing either, try a different package and make sure its correct for your phone.
I hope you get it sorted
The hello read package does occur when the phone is not really EDL mode anymore. You always have to restart the phone and boot manually into EDL mode with + - Power and you have to reboot everytime you did or if the hello error happens.
Look under device manager if it says Qualcomm instead of ZTE Device Handset. If that is the case you can build your own EDL cable.
"First I opened the cable and cut the Black and green open, then I connected all the black and green one together and pressed the power button until the red led was gone and 2 additional seconds.
After that I disconnected the modded cable and connected the Phone to the PC with the orginal cable and it showed up as Qualcomm HS-USB QDLoader 9008. "
You can install the qualcomm drivers under the MiFlash tab in the latest version.
i finally solve my issue following the guide: https://forum.xda-developers.com/axon-7/how-to/a2017-4th-category-brick-repair-manual-t3585898 there is also a resume on https://forum.xda-developers.com/axon-7/how-to/guide-dfu-unbrick-guide-disassembly-t3731152

Broken EDL mode

Hello everyone. I'm stuck here on strange bug: when device rebooted to EDL it gives "unknown usb device (device descriptor request failed)". Tryed on desktop Win10, worked before but not now. Connected to laptop Win7, never attached device before, gave me same error. So I assume I broked edl some way? Is it possible to recover?
EDIT: Make sure you install them, especially the Qualcomm driver while Driver Signature Mode is disabled.
If you haven't already, try installing the Qualcomm USB Drivers. You can follow the simple guide here:
https://bit.ly/2EdPjlm
Afterward, reboot and try again.
KwesiJnr said:
EDIT: Make sure you install them, especially the Qualcomm driver while Driver Signature Mode is disabled.
If you haven't already, try installing the Qualcomm USB Drivers. You can follow the simple guide here:
https://bit.ly/2EdPjlm
Afterward, reboot and try again.
Click to expand...
Click to collapse
QC drivers already installed, and EDL mode worked fine week ago - when I flashed TWRP.
Solved. There was two problems:
1) Zadig WinUSB driver, which prevents phone from normal EDL work
2) When you reboot phone in EDL mode and unplug it, you get 43 error 100% no matter what. All manipulations with device and it's drivers must be made right after reboot to EDL without unplugging
@KwesiJnr: There is no need to disable Driver Signature Enforcement in Windows. I have flashed with MiFlash quite a bit on Windows 10, never had to disable it.
@SionGrey: Just follow the instructions in the first couple of paragraphs of https://forum.xda-developers.com/axon-7/development/edl-emergency-dl-mode-twrp-unlock-t3553514. You don't need to flash the packages linked there. The version of MiFlash that @jcadduono provides is sufficient for flashing Marshmallow/Nougat EDL packages. In you are flashing an Oreo EDL then I think you will need the version of MiFlash from December 2016 (Google it), I never had any luck with @jcadduono's version when flashing Oreo. The installer is in another language but the program runs in English. Zadig's WinUSB drivers will definitely interfere with MiFlash, uninstall them from Device Management before installing the Qualcomm drivers. I never got a failure at 43%. You can restart EDL mode on the phone without unplugging, just hold Volume Up + Volume Down + Power (in that order) until you see a red light blink in the upper left corner of the phone. Then just refresh in MiFlash.
@AnonVendetta
You got wrong idea. There was no any 43% flashing error. I posted above that I solved my problem. It was "unknown usb device (device descriptor request failed)" in device manager, and it happened because phone MUST be plugged-in during reboot to EDL mode. No un-plugging and re-plugging when phone is already in EDL
SionGrey said:
@AnonVendetta
You got wrong idea. There was no any 43% flashing error. I posted above that I solved my problem. It was "unknown usb device (device descriptor request failed)" in device manager, and it happened because phone MUST be plugged-in during reboot to EDL mode. No un-plugging and re-plugging when phone is already in EDL
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Thanks man, you helped me a lot - appreciate it. I didn't plug in the phone to my computer at the right time. I got it now.
I noticed someone had quoted me recently. But I can't be of any help. It's been over a year since my Axon 7 was stolen. I've moved on to a better device. The A7 was still a pretty good phone though.

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