[Moto G4 Plus Questions & Answers] Franivelius:
The bricked phone was kept in a drawer some time now I finally have time to try and flash the stock ROM one last time before sending it to some phone fixing shop.

This is my Fastboot CMD:

ZY223SND94 fastboot

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash partition gpt.bin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:partition: not found
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ -0.000s]
writing 'partition'...
(bootloader) Flashing primary GPT image...
(bootloader) Flashing backup GPT image...
OKAY [ 0.094s]
finished. total time: 0.109s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash bootloader bootloader.img
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:bootloader: not found
target reported max download size of 536870912 bytes
sending 'bootloader' (3651 KB)...
OKAY [ 0.109s]
writing 'bootloader'...
(bootloader) validating: bootloader.default.xml ...
(bootloader) will pass: flash:aboot
(bootloader) will pass: flash:rpm
(bootloader) will pass: flash:tz
(bootloader) will pass: flash:hyp
(bootloader) will pass: flash:cmnlib
(bootloader) will pass: flash:keymaster
(bootloader) will pass: flash:sbl1
(bootloader) committing: bootloader.default.xml ...
(bootloader) - flashing 'emmc_appsboot.mbn' to 'aboot'
(bootloader) - flashing 'rpm.mbn' to 'rpm'
(bootloader) - flashing 'tz.mbn' to 'tz'
(bootloader) - flashing 'hyp.mbn' to 'hyp'
(bootloader) - flashing 'cmnlib.mbn' to 'cmnlib'
(bootloader) - flashing 'keymaster.mbn' to 'keymaster'
(bootloader) - flashing 'sbl1.mbn' to 'sbl1'
OKAY [ 0.344s]
finished. total time: 0.453s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash logo logo.bin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:logo: not found
target reported max download size of 536870912 bytes
sending 'logo' (2186 KB)...
OKAY [ 0.078s]
writing 'logo'...
OKAY [ 0.047s]
finished. total time: 0.125s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash boot boot.img
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:boot: not found
target reported max download size of 536870912 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.516s]
writing 'boot'...
OKAY [ 0.266s]
finished. total time: 0.781s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash recovery recovery.img
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:recovery: not found
target reported max download size of 536870912 bytes
sending 'recovery' (16484 KB)...
OKAY [ 0.531s]
writing 'recovery'...
OKAY [ 0.297s]
finished. total time: 0.828s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash dsp adspso.bin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:dsp: not found
target reported max download size of 536870912 bytes
sending 'dsp' (16384 KB)...
OKAY [ 0.516s]
writing 'dsp'...
OKAY [ 0.141s]
finished. total time: 0.656s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash oem oem.img
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:oem: not found
target reported max download size of 536870912 bytes
sending 'oem' (96490 KB)...
OKAY [ 3.032s]
writing 'oem'...
OKAY [ 6.516s]
finished. total time: 9.564s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.0
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (261013 KB)...
OKAY [ 8.220s]
writing 'system'...
OKAY [ 4.188s]
finished. total time: 12.408s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.1
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (250846 KB)...
OKAY [ 7.891s]
writing 'system'...
OKAY [ 4.297s]
finished. total time: 12.189s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.2
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (254613 KB)...
OKAY [ 8.016s]
writing 'system'...
OKAY [ 4.204s]
finished. total time: 12.220s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.3
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (261613 KB)...
OKAY [ 8.235s]
writing 'system'...
OKAY [ 4.047s]
finished. total time: 12.298s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.4
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (260927 KB)...
OKAY [ 8.220s]
writing 'system'...
OKAY [ 10.032s]
finished. total time: 18.252s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.5
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (255614 KB)...
OKAY [ 8.048s]
writing 'system'...
OKAY [ 4.157s]
finished. total time: 12.204s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.6
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (253500 KB)...
OKAY [ 7.985s]
writing 'system'...
OKAY [ 5.001s]
finished. total time: 12.986s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.7
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (82497 KB)...
OKAY [ 2.594s]
writing 'system'...
OKAY [ 1.313s]
finished. total time: 3.907s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash modem NON-HLOS.bin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:modem: not found
target reported max download size of 536870912 bytes
sending 'modem' (76958 KB)...
OKAY [ 2.422s]
writing 'modem'...
OKAY [ 0.563s]
finished. total time: 3.000s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase modemst1
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:modemst1: not found
erasing 'modemst1'...
OKAY [ 0.016s]
finished. total time: 0.016s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase modemst2
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:modemst2: not found
erasing 'modemst2'...
OKAY [ 0.031s]
finished. total time: 0.031s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash fsg fsg.mbn
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:fsg: not found
target reported max download size of 536870912 bytes
sending 'fsg' (2032 KB)...
OKAY [ 0.063s]
writing 'fsg'...
OKAY [ 0.047s]
finished. total time: 0.109s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase cache
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:cache: not found
erasing 'cache'...
OKAY [ 0.016s]
finished. total time: 0.016s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase userdata
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:userdata: not found
erasing 'userdata'...
OKAY [ 0.031s]
finished. total time: 0.031s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase customize
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:customize: not found
erasing 'customize'...
OKAY [ 0.016s]
finished. total time: 0.016s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase clogo
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:clogo: not found
erasing 'clogo'...
OKAY [ 0.016s]
finished. total time: 0.031s

So no luck. I don't know whats the meaning of this:

(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found

I will take the phone to the shop and see what they tell me.