[ZTE Axon 7 Questions & Answers] jdk309:
Merry Christmas everyone. I have been trying to unlock the bootloader on my A2017 Chinese variant for 3 weeks lol. I have attempted almost every program that's been deemed safe for use. I cant get Miflash to see the phone on the com port even though the Axon 7 EDL tool sees it and it is recognized as that QUALCOMM 9008 in device manager on my x64 win 10 machine.

I am currently on A2017V3.0.0B17 and I tired B13 just this morning and this week and neither allows the communication via the EDL toolkit for the unlock procedure to commence. The phone is seen as the QUALCOMM item under both builds yet there is a failure in the tool and here is my log. The toolkit always fails to open the firehose programmer and mentions invalid syntax. I have the hidden files and folders shown in windows as well as dev options enabled for oem unlock and USB debugging.

This is my spare phone as I have the A2017U now for the 4G LTE bands. I have tried everything that I am aware of in order to unlock the bootloader including that 5 or 6 step unlock process by the rootjunky guy and i posted about the error i received while flashing that step 1 file previously with no responses. I guess its an uncommon issue. Anyway Heres the log:

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Version 2.15

Failed to write hello response back to device

Did not receive Sahara hello packet from device

!!!!!!!! WARNING: Flash programmer failed to load trying to continue !!!!!!!!!

Status: 6 The handle is invalid.

13:48:46: INFO: FH_LOADER WAS CALLED EXACTLY LIKE THIS

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C:\Axon7_EDL_Tool 2\tools\fh_loader.exe --port=\\.\COM6 --sendxml=unlock.xml --search_path=C:\Axon7_EDL_Tool 2\unlock,C:\Axon7_EDL_Tool 2\tools --mainoutputdir=C:\Axon7_EDL_Tool 2\logs --noprompt --showpercentagecomplete --zlpawarehost=1 --memoryname=ufs

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13:48:46: DEBUG: Binary build date: Mar 26 2017 @ 22:09:16

13:48:46: DEBUG: Build Version: 17.03.26.22.09.16

13:48:46: INFO: Current working dir (cwd): C:\WINDOWS\system32\

13:48:46: INFO: Showing network mappings to allow debugging

13:48:47: DEBUG: New connections will be remembered.

13:48:47: DEBUG:

13:48:47: DEBUG: There are no entries in the list.

13:48:47: DEBUG:

13:48:47: INFO:

13:48:47: INFO: Trying to store 'unlock.xml' in string table

13:48:47: DEBUG: ==================================================================================

13:48:47: DEBUG: ==================================================================================

13:48:47: INFO: Looking for file 'unlock.xml'

13:48:47: DEBUG: 1. Calling stat(C:\Axon7_EDL_Tool 2\unlock\unlock.xml')

13:48:47: DEBUG: 1. Calling stat(C:\Axon7_EDL_Tool 2\tools\unlock.xml')

13:48:47: DEBUG: 2. Calling fopen('C:\Axon7_EDL_Tool 2\tools\unlock.xml') with AccessMode='rb'

13:48:47: DEBUG: Trying get filesize, calling fseek()

13:48:47: DEBUG: Found 'C:\Axon7_EDL_Tool 2\tools\unlock.xml' (1585 bytes)

13:48:47: DEBUG: 2. Calling fopen('C:\Axon7_EDL_Tool 2\tools\unlock.xml') with AccessMode='r'

13:48:47: DEBUG: Trying get filesize, calling fseek()

13:48:47: DEBUG: User set ZLPAWAREHOST to 1

13:48:47: INFO: User wants to talk to port '\\.\COM6'

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| __| '__| '__/ _ \| '__|

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\____/_| |_| \___/|_|

13:48:47: {ERROR: OpenPort:5198 Failed to open com port '\\.\COM6'

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ANY help is appreciated! Thanks!

PS as of now I am on the Chinese firmware and it hate all the bloatware and hieroglyphics and I just want to get back to a full English rom with GAPPS and the old 3G-only trash I was on before trying to update to oreo and losing my previous rom (didn't know how to backup yet or knew to even worry about the update). I seemingly cant load ANY signed firmwares from the SD card because of error 21 and signature issues in the sideload menu. That includes SIGNED zte Chinese firmwares straight from their translated site. Thanks ZTE for this month long, error-ridden saga of finding oreo without your language riddling it.