[Moto Z2 Force  Questions & Answers] wolzotan:
ok. Thanks so much 41rw4lk, for walking me through this. Still no luck unfortunately.

I ran the following commands on a new laptop, new windows 10, that I hadnt tried before. However the outcome was identical, as far as i see.

I did download the firmware you linked. I ran the preparation.bat, and then the flashfile.bat. this is the log. It shows the same error messages, that I got with the Pie firmware.

max-sparse-size: 268435456
finished. total time: 0.000s
...
OKAY [ 0.000s]
finished. total time: 0.000s
target reported max download size of 536870912 bytes
sending 'partition' (206 KB)...
OKAY [ 0.016s]
writing 'partition'...
(bootloader) Validating 'gpt.default.xml'
(bootloader) Committing 'gpt.default.xml'
(bootloader) - flashing 'gpt_main0.bin' to 'partition:0'
(bootloader) - flashing 'gpt_main1.bin' to 'partition:1'
(bootloader) - flashing 'gpt_main2.bin' to 'partition:2'
(bootloader) - flashing 'gpt_main3.bin' to 'partition:3'
(bootloader) - flashing 'gpt_main4.bin' to 'partition:4'
(bootloader) - flashing 'gpt_main5.bin' to 'partition:5'
OKAY [ 0.234s]
finished. total time: 0.250s
target reported max download size of 536870912 bytes
sending 'bootloader' (9884 KB)...
OKAY [ 0.547s]
writing 'bootloader'...
(bootloader) Validating 'bootloader.default.xml'
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) flash permission denied
(bootloader) Cancelling 'bootloader.default.xml'
FAILED (remote failure)
finished. total time: 0.656s
target reported max download size of 536870912 bytes
sending 'modem_a' (97411 KB)...
OKAY [ 6.896s]
writing 'modem_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 6.896s
target reported max download size of 536870912 bytes
sending 'fsg_a' (5600 KB)...
OKAY [ 0.297s]
writing 'fsg_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 0.312s
target reported max download size of 536870912 bytes
sending 'bluetooth_a' (4496 KB)...
OKAY [ 0.219s]
writing 'bluetooth_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 0.234s
target reported max download size of 536870912 bytes
sending 'dsp_a' (16384 KB)...
OKAY [ 0.828s]
writing 'dsp_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 0.844s
target reported max download size of 536870912 bytes
sending 'logo_a' (3524 KB)...
OKAY [ 0.172s]
writing 'logo_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 0.187s
target reported max download size of 536870912 bytes
sending 'boot_a' (23353 KB)...
OKAY [ 1.172s]
writing 'boot_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 1.172s
target reported max download size of 536870912 bytes
sending 'system_a' (516200 KB)...
OKAY [ 30.593s]
writing 'system_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 30.608s
target reported max download size of 536870912 bytes
sending 'system_a' (522116 KB)...
OKAY [ 26.218s]
writing 'system_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 26.233s
target reported max download size of 536870912 bytes
sending 'system_a' (519014 KB)...
OKAY [ 25.927s]
writing 'system_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 25.927s
target reported max download size of 536870912 bytes
sending 'system_a' (516292 KB)...
FAILED (data write failure (Unknown error))
finished. total time: 126.811s
target didn't report max-download-size
sending 'system' (523200 KB)...
FAILED (command write failed (No error))
finished. total time: -0.000s
target didn't report max-download-size
sending 'system' (413555 KB)...
FAILED (command write failed (No error))
finished. total time: 0.016s
target didn't report max-download-size
sending 'system_b' (515182 KB)...
FAILED (command write failed (No error))
finished. total time: 0.016s
target didn't report max-download-size
sending 'system_b' (319593 KB)...
FAILED (command write failed (No error))
finished. total time: -0.000s
target didn't report max-download-size
sending 'oem' (163061 KB)...
FAILED (command write failed (No error))
finished. total time: 0.016s
erasing 'modemst1'...
FAILED (command write failed (No error))
finished. total time: -0.000s
erasing 'modemst2'...
FAILED (command write failed (No error))
finished. total time: 0.000s
erasing 'carrier'...
FAILED (command write failed (No error))
finished. total time: -0.000s
erasing 'cache'...
FAILED (command write failed (No error))
finished. total time: 0.000s
erasing 'userdata'...
FAILED (command write failed (No error))
finished. total time: -0.000s
erasing 'ddr'...
FAILED (command write failed (No error))
finished. total time: 0.000s
target didn't report max-download-size
sending 'fsg' (5600 KB)...
FAILED (command write failed (No error))
finished. total time: 0.016s
target reported max download size of 536870912 bytes
sending 'bluetooth_a' (4496 KB)...
OKAY [ 0.270s]
writing 'bluetooth_a'...
(bootloader) flash permission denied
FAILED (remote failure)
finished. total time: 0.290s
...
OKAY [ -0.000s]
finished. total time: -0.000s
-------------------------------------------------------------------------
please scroll up and check your flash for any errors
-------------------------------------------------------------------------

And then a current flashboot getvar all:

fastboot getvar all
(bootloader) kernel: uefi
(bootloader) version-bootloader: MBM-3.0-nash_retail-43c7c77-190705
(bootloader) product: nash
(bootloader) board: nash
(bootloader) secure: yes
(bootloader) hwrev: PVT
(bootloader) radio: EMEA
(bootloader) storage-type: UFS
(bootloader) emmc: N/A
(bootloader) ufs: 64GB SAMSUNG KLUCG4J1ED-B0C1 FV=0200
(bootloader) ram: 6GB SAMSUNG LP4x DIE=12Gb M5=01 M6=06 M7=00 M8=0E
(bootloader) cpu: MSM8998 2.1 (0)
(bootloader) serialno: ZY224ZCL4C
(bootloader) cid: 0x0032
(bootloader) channelid: 0x40
(bootloader) uid: 81C2C8EF
(bootloader) securestate: flashing_locked
(bootloader) verity-state: disabled (0)
(bootloader) iswarrantyvoid: yes
(bootloader) max-download-size: 536870912
(bootloader) reason: Volume down key pressed
(bootloader) imei: XXXXXXXXXXXXXX
(bootloader) meid:
(bootloader) date: 05-17-2018
(bootloader) sku: XT1789-06
(bootloader) carrier_sku:
(bootloader) battid: SNN5987A
(bootloader) battery-voltage: 3922
(bootloader) iccid:
(bootloader) cust_md5:
(bootloader) max-sparse-size: 268435456
(bootloader) ro.build.fingerprint[0]: motorola/nash/nash:8.0.0/OPXS27.10
(bootloader) ro.build.fingerprint[1]: 9-34-21/21:user/release-keys
(bootloader) poweroffalarm: 0
(bootloader) ro.build.version.full[0]: Blur_Version.27.481.21.nash.retai
(bootloader) ro.build.version.full[1]: l.en.US
(bootloader) ro.build.version.qcom: LA.UM.6.4.r1-04300-8x98.0
(bootloader) version-baseband: M8998_20207.117.02.41-01.02R NED
(bootloader) kernel.version[0]: Linux version 4.4.78-perf-g3c2ab17 (huds
(bootloader) kernel.version[1]: oncm@ilclbld72) (gcc version 4.9.x 20150
(bootloader) kernel.version[2]: 123 (prerelease) (GCC) ) #1 SMP PREEMPT
(bootloader) kernel.version[3]: Fri Nov 2 11:29:48 CDT 2018
(bootloader) git:abl: MBM-3.0-nash_retail-43c7c77-190705
(bootloader) git:xbl: MBM-3.0-nash_retail-4fc2afc-190705
(bootloader) git:pmic: MBM-3.0-nash_retail-4fc2afc-190705
(bootloader) git:rpm: MBM-3.0-nash_retail-404f7ba-190705
(bootloader) git:tz: MBM-3.0-nash_retail-3537781-190705
(bootloader) git:hyp: MBM-3.0-nash_retail-3537781-190705
(bootloader) git:devcfg: MBM-3.0-nash_retail-3537781-190705
(bootloader) git:cmnlib: MBM-3.0-nash_retail-3537781-190705
(bootloader) git:cmnlib64: MBM-3.0-nash_retail-3537781-190705
(bootloader) git:keymaster: MBM-3.0-nash_retail-3537781-190705
(bootloader) git:storsec: MBM-3.0-nash_retail-3537781-190705
(bootloader) git:prov: MBM-3.0-nash_retail-3537781-190705
(bootloader) frp-state: no protection (0)
(bootloader) ro.carrier: reteu
(bootloader) current-slot: a
(bootloader) running-bl-slot: _a/_a
(bootloader) running-boot-lun: 2
(bootloader) slot-count: 2
(bootloader) slot-successful:_a: no
(bootloader) slot-successful:_b: no
(bootloader) slot-unbootable:_a: no
(bootloader) slot-unbootable:_b: no
(bootloader) slot-retry-count:_a: 4
(bootloader) slot-retry-count:_b: 0
all: listed above
finished. total time: 0.147s

It seems at some point some command was successful in switching the slots. Strange... I am really fishing in the dark here.

Still the Phone says: Device corrupted, and to unlock the bootloader, and when I try t unlock the bootloader in fastboot, it still tells me to check "OEM Unlocking" in the developer options.