[Moto X4 Questions & Answers] CyberrPK:
my moto has stopped working properly. it gets stuck in the logo screen and won't start. not even the backup solved the problem. I can access to the recovery and the bootloader but if I install a rom, nothing change and remain stuck. Rescue and Smart Assistant does not detect the device and tells me that ro.carrier is missing and to contact the seller to rewrite it. This the log of my device

fastboot getvar all

(bootloader) kernel: uefi

(bootloader) version-bootloader: MBM-3.0-payton_retail-8510c11-190829

(bootloader) product: payton

(bootloader) board: payton

(bootloader) secure: yes

(bootloader) hwrev: P4

(bootloader) radio: EMEA

(bootloader) storage-type: eMMC

(bootloader) emmc: 64GB SAMSUNG DH6DMB RV=08 PV=05 FV=0000000000000005

(bootloader) ufs: N/A

(bootloader) ram: 4GB SAMSUNG LP4x DIE=16Gb M5=01 M6=06 M7=10 M8=12

(bootloader) cpu: SDM630 1.0 (6)

(bootloader) serialno: ZY224KPP39

(bootloader) cid: 0x00FF

(bootloader) channelid: 0x00

(bootloader) uid: 3A32ECCB

(bootloader) securestate: flashing_unlocked

(bootloader) verity-state: disabled (0)

(bootloader) iswarrantyvoid: yes

(bootloader) max-download-size: 536870912

(bootloader) reason: Reboot mode set to fastboot

(bootloader) imei: 356516081801693

(bootloader) meid:

(bootloader) date: 08-10-2018

(bootloader) sku: XT1900-7

(bootloader) carrier_sku:

(bootloader) battid: SNN5995A

(bootloader) battery-voltage: 4298

(bootloader) iccid:

(bootloader) cust_md5:

(bootloader) max-sparse-size: 268435456

(bootloader) ro.build.fingerprint[0]: motorola/payton/payton:9/PPWS29.69

(bootloader) ro.build.fingerprint[1]: -37-5/63ca8:user/release-keys

(bootloader) poweroffalarm: 0

(bootloader) ro.build.version.full[0]: Blur_Version.29.381.29.payton.ret

(bootloader) ro.build.version.full[1]: ail.en.US

(bootloader) ro.build.version.qcom: LA.UM.7.2.r1-04900-sdm660.0

(bootloader) version-baseband: M660_7045.36.01.100R PAYTON_EMEADSDS_CUST

(bootloader) kernel.version[0]: Linux version 4.4.153-perf-g3ff98f3 (hud

(bootloader) kernel.version[1]: soncm@ilclbld153) (gcc version 4.9.x 201

(bootloader) kernel.version[2]: 50123 (prerelease) (GCC) ) #1 SMP PREEMP

(bootloader) kernel.version[3]: T Thu Aug 29 11:07:24 CDT 2019

(bootloader) git:abl: MBM-3.0-payton_retail-8510c11-190829

(bootloader) git:xbl: MBM-3.0-payton_retail-fe5d8a9-190829

(bootloader) git:pmic: MBM-3.0-payton_retail-fe5d8a9-190829

(bootloader) git:rpm: MBM-3.0-payton_retail-b0c6622-190829

(bootloader) git:tz: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) git:hyp: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) git:devcfg: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) git:cmnlib: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) git:cmnlib64: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) git:keymaster: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) git:prov: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) git:storsec: MBM-3.0-payton_retail-3ea0392-190829

(bootloader) frp-state: no protection (0)

(bootloader) ro.carrier: unknown

(bootloader) current-slot: a

(bootloader) running-bl-slot: _a/_a

(bootloader) running-boot-lun: 0

(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: 6

(bootloader) slot-retry-count:_b: 7

all: listed above

finished. total time: 0.436s

I try this buy not change

fastboot oem config carrier retail

...

(bootloader) <UTAG name="carrier" type="str" protected="FALSE">

(bootloader) <value>

(bootloader) retail

(bootloader) </value>

(bootloader) <description>

(bootloader) Carrier IDs, see (bere Is link buy i can post for now)

(bootloader) </description>

(bootloader) </UTAG>

OKAY [ 0.031s]

finished. total time: 0.031s