[ZTE Axon 7 Questions & Answers] RandomHelplessFool:
Thank you both for you recommandations!

Obviously in my case, it would be too convenient to have it work in the way its expected to.

I searched a while and found these two links to the Miflash tool :

https://xiaomiflashtool.com/download/xiaomi-flash-tool-20161222

http://en.miui.com/thread-345974-1-1.html

I choose to install the second version, as the first ones installer is entirely in chinese which made me a bit skeptical.

However with the english version from 30.08.2016, I had no luck as my device didn't show up.

I selected the folder where I have extracted the Nougat B12 Rom runninghamster suggested to me earlier.

Before and after the procedure I checked via device Manager and EDL Tool that my device is connected and still in EDL Mode, which it was / is, at least the EDL Tool claims that.

Also I tried to get out of EDL mode in hopes of restarting it, which in my thought process might be useful, as I tried several operations in it already.

Yet Volume Up + Power isn't doing much the device just seems to stay in EDL mode, as the EDL tool still claims that.

I found a log file in the Miflash folder which might show something interestening to you guys, so here is a part of it

[09:10:58]:copy C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Qualcomm\Driver\serial\i386\qcCoInstaller.dll to C:\WINDOWS\system32\qcCoInstaller.dll

[09:10:58]:open RegistryKey Software\XiaoMi\MiFlash\

[09:10:58]:create RegistryKey Software\XiaoMi\MiFlash\

[09:10:59]:install driver C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Google\Driver\android_winusb.inf to ,result False,GetLastWin32Error Unknown error (0xe000024b)

[09:10:59]:mkdir "C:\Users\Marius PowerPC\.android"

[09:10:59]:output:

[09:10:59]: echo 0x2717 >>"C:\Users\Marius PowerPC\.android\adb_usb.ini"

[09:10:59]:output:

[09:10:59]:open RegistryKey Software\XiaoMi\MiFlash\

[09:11:00]:install driver C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Nvidia\Driver\NvidiaUsb.inf to ,result False,GetLastWin32Error Unknown error (0xe000022f)

[09:11:00]:open RegistryKey Software\XiaoMi\MiFlash\

[09:11:00]:install driver C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Microsoft\Driver\tetherxp.inf to ,result False,GetLastWin32Error Unknown error (0xe000022f)

[09:11:00]:open RegistryKey Software\XiaoMi\MiFlash\

[09:11:00]:install driver C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Microsoft\Driver\wpdmtphw.inf to ,result False,GetLastWin32Error Unknown error (0xe000022f)

[09:11:00]:open RegistryKey Software\XiaoMi\MiFlash\

[09:11:22]:install driver C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Qualcomm\Driver\qcser.inf to C:\WINDOWS\INF\oem60.inf,result True,GetLastWin32Error

[09:11:22]:set RegistryKey value:qcser.inf--oem60.inf

[09:15:56]:Die angegebene Umwandlung ist ungültig.

[09:15:56]: bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 99.

bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 101.

bei XiaoMiFlash.code.Utility.UsbDevice.GetScriptDevices(List`1 UsbItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 89.

bei XiaoMiFlash.code.Utility.UsbDevice.GetDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 47.

bei XiaoMiFlash.MainFrm.RefreshDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\MainFrm.cs:Zeile 298.

[09:20:16]:Die angegebene Umwandlung ist ungültig.

[09:20:16]: bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 99.

bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 101.

bei XiaoMiFlash.code.Utility.UsbDevice.GetScriptDevices(List`1 UsbItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 89.

bei XiaoMiFlash.code.Utility.UsbDevice.GetDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 47.

bei XiaoMiFlash.MainFrm.RefreshDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\MainFrm.cs:Zeile 298.

[09:20:18]:Die angegebene Umwandlung ist ungültig.

[09:20:18]: bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 99.

bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 101.

bei XiaoMiFlash.code.Utility.UsbDevice.GetScriptDevices(List`1 UsbItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 89.

bei XiaoMiFlash.code.Utility.UsbDevice.GetDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 47.

bei XiaoMiFlash.MainFrm.RefreshDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\MainFrm.cs:Zeile 298.

[09:23:19]:Die angegebene Umwandlung ist ungültig.

[09:23:19]: bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 99.

bei XiaoMiFlash.code.Utility.UsbDevice.GetAndroidDevices(TreeViewUsbItem item, List`1& outItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 101.

bei XiaoMiFlash.code.Utility.UsbDevice.GetScriptDevices(List`1 UsbItems) in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 89.

bei XiaoMiFlash.code.Utility.UsbDevice.GetDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\code\Utility\UsbDevice.cs:Zeile 47.

bei XiaoMiFlash.MainFrm.RefreshDevice() in D:\Workspace\MiFlash\XiaoMiFlash\XiaoMiFlash\MainFrm.cs:Zeile 298.

[09:51:51]:copy C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Qualcomm\Driver\serial\i386\qcCoInstaller.dll to C:\WINDOWS\system32\qcCoInstaller.dll

[09:51:51]:open RegistryKey Software\XiaoMi\MiFlash\

[09:51:53]:install driver C:\XiaoMi\XiaoMiFlash\Source\ThirdParty\Google\Driver\android_winusb.inf to ,result False,GetLastWin32Error Unknown error (0xe000024b)

[09:51:53]:mkdir "C:\Users\Marius PowerPC\.android"

[09:51:53]:output:

I also checked the DFU Tool AnonVendetta mentioned and came up with that link

https://xdaforums.com/axon-7/how-to/salesmultidla2017-tool-to-unblick-dfu-t3854229/page2

but I figured as the EDL Tool still claims my phone is in edl mode and device manager is showing if my device is connected or not,

there shouldn't be any need for it in theory.

As always, I'm looking foreward for you recommandations, thank you for helping me thus far! :fingers-crossed: