[Moto G5 Plus Questions & Answers] decsus:
Still on bootloop.. here is the flash process

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem fb_mode_set
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
OKAY [ 0.005s]
finished. total time: 0.008s

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' (45 KB)...
OKAY [ 0.006s]
writing 'partition'...
(bootloader) Validating 'gpt.default.xml'
(bootloader) Committing 'gpt.default.xml'
(bootloader) - flashing 'gpt_main0.bin' to 'partition:0'
(bootloader) Flashing primary GPT image...
(bootloader) Flashing backup GPT image...
OKAY [ 0.170s]
finished. total time: 0.181s

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' (5115 KB)...
OKAY [ 0.119s]
writing 'bootloader'...
(bootloader) Validating 'bootloader.default.xml'
(bootloader) Security version downgrade
(bootloader) Image tz failed validation
(bootloader) Preflash validation failed
(bootloader) Security version downgrade
(bootloader) Image devcfg failed validation
(bootloader) Preflash validation failed
(bootloader) Cancelling 'bootloader.default.xml'
FAILED (remote failure)
finished. total time: 0.426s

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' (71921 KB)...
OKAY [ 1.579s]
writing 'modem'...
OKAY [ 0.647s]
finished. total time: 2.231s

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' (3012 KB)...
OKAY [ 0.071s]
writing 'fsg'...
OKAY [ 0.080s]
finished. total time: 0.161s

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 [ 0.024s]
finished. total time: 0.029s

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 [ 0.027s]
finished. total time: 0.029s

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 [ 0.362s]
writing 'dsp'...
OKAY [ 0.188s]
finished. total time: 0.556s

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 [ 0.053s]
writing 'logo'...
OKAY [ 0.077s]
finished. total time: 0.138s

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 [ 0.385s]
writing 'boot'...
(bootloader) Image signed with key bad key
OKAY [ 0.324s]
finished. total time: 0.712s

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' (20580 KB)...
OKAY [ 0.470s]
writing 'recovery'...
(bootloader) Image signed with key bad key
OKAY [ 0.392s]
finished. total time: 0.872s

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' (258396 KB)...
OKAY [ 5.652s]
writing 'system'...
OKAY [ 1.998s]
finished. total time: 7.660s

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' (256514 KB)...
OKAY [ 5.625s]
writing 'system'...
OKAY [ 1.889s]
finished. total time: 7.523s

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' (246302 KB)...
OKAY [ 5.445s]
writing 'system'...
OKAY [ 2.188s]
finished. total time: 7.642s

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' (262141 KB)...
OKAY [ 5.740s]
writing 'system'...
OKAY [ 1.905s]
finished. total time: 7.651s

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' (262141 KB)...
OKAY [ 5.736s]
writing 'system'...
OKAY [ 1.921s]
finished. total time: 7.663s

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' (262141 KB)...
OKAY [ 5.733s]
writing 'system'...
OKAY [ 1.912s]
finished. total time: 7.657s

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' (250531 KB)...
OKAY [ 5.508s]
writing 'system'...
OKAY [ 2.237s]
finished. total time: 7.757s

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' (262059 KB)...
OKAY [ 5.757s]
writing 'system'...
OKAY [ 2.241s]
finished. total time: 8.007s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.8
(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' (254142 KB)...
OKAY [ 5.562s]
writing 'system'...
OKAY [ 1.889s]
finished. total time: 7.458s

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' (104608 KB)...
OKAY [ 2.279s]
writing 'oem'...
OKAY [ 0.837s]
finished. total time: 3.125s

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 [ 0.018s]
finished. total time: 0.019s

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 [ 0.059s]
finished. total time: 0.061s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase DDR
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:DDR: not found
erasing 'DDR'...
OKAY [ 0.008s]
finished. total time: 0.009s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem fb_mode_clear
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
OKAY [ 0.006s]
finished. total time: 0.007s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot reboot
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
rebooting...

finished. total time: 0.009s

And here is the after getvar

(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) version: 0.5
(bootloader) version-bootloader: moto-msm8953-C1.07
(bootloader) product: potter
(bootloader) board: potter
(bootloader) secure: yes
(bootloader) hwrev: P3B
(bootloader) radio: 1
(bootloader) storage-type: emmc
(bootloader) emmc: 32GB SKHYNIX HBG4a2 RV=08 PV=A5 FV=00000000000000A5
(bootloader) ram: 2GB SKHYNIX LP3 DIE=8Gb M5=06 M6=03 M7=00 M8=1F
(bootloader) cpu: MSM8953
(bootloader) serialno: ZY2248PX2X
(bootloader) cid: 0x0032
(bootloader) channelid: 0x8d
(bootloader) uid: 3863DD5C00000000000000000000
(bootloader) securestate: flashing_unlocked
(bootloader) iswarrantyvoid: yes
(bootloader) max-download-size: 536870912
(bootloader) reason: Volume down key pressed
(bootloader) imei: 000000000000000
(bootloader) meid:
(bootloader) date: 01-01-1970
(bootloader) sku: 000000000000000
(bootloader) battid:
(bootloader) iccid:
(bootloader) cust_md5:
(bootloader) max-sparse-size: 268435456
(bootloader) current-time: "Thu Jan 1 0: 0:18 UTC 1970"
(bootloader) ro.build.fingerprint[0]: motorola/potter/potter:8.1.0/OPS28
(bootloader) ro.build.fingerprint[1]: .85-13/b8ea:user/release-keys
(bootloader) poweroffalarm: 0
(bootloader) ro.build.version.full[0]: Blur_Version.28.51.16.potter.reta
(bootloader) ro.build.version.full[1]: il.en.US
(bootloader) ro.build.version.qcom: LA.UM.6.6.r1-08600-89xx.0
(bootloader) version-baseband: M8953_13.20.07.21R POTTER_NA_CUST
(bootloader) kernel.version[0]: Linux version 3.18.71-perf-g2148ea10 (hu
(bootloader) kernel.version[1]: dsoncm@ilclbld68) (gcc version 4.9.x 201
(bootloader) kernel.version[2]: 50123 (prerelease) (GCC) ) #1 SMP PREEMP
(bootloader) kernel.version[3]: T Fri Aug 17 09:31:36 CDT 2018
(bootloader) sbl1.git: git=MBM-NG-VC1.07-0-g3b15bb0
(bootloader) rpm.git: git=MBM-NG-VC0.C0-1-g202d600
(bootloader) tz.git: git=283f623
(bootloader) devcfg.git: git=283f623
(bootloader) keymaster.git: git=283f623
(bootloader) cmnlib.git: git=283f623
(bootloader) cmnlib64.git: git=283f623
(bootloader) prov.git: git=283f623
(bootloader) aboot.git: git=MBM-NG-VC1.07-0-g9d7f987
(bootloader) qe: qe 0/0
(bootloader) frp-state: no protection (0)
(bootloader) ro.carrier: retus