Fallo Al Reparar Imei A505f Opciones

[constanlol]

estoy intentando reparar el imei de un A505F pero siempre me da lo siguiente.

Waiting ADB device... OK
Reading phone info...
Model: SM-A505F
Android version: 10
PDA version: A505FDDS7BUB5
CSC version: A505FOLM7BUB5
Phone version: A505FXXS7BUB5
Product code: SM-A505XZKAXXV
CSC country code: VIETNAM
CSC sales code: XXV
Phone SN: R58M56HERHY
IMEI: 000000000000000
HW version: MP0.400
RF cal date: 20190524
Chip name: EXYNOS9610
Modem board: SHANNON337
Security patch: 2021-02-01
Boot Warranty bit: 1
SIM State: ABSENT,ABSENT
Checking Super user right... true
Root version: 0646f48e:MAGISKSU
Checking data... OK
Searching server... OK
Checking server answer... OK
Data preparation... OK
Initialization zTool... OK
Running zTool, please wait... OK
Executing 1st step... error (6 2.7.9)
Rebooting phone... OK

Done with Samsung Tool PRO v.45.14 [SM-A505F,Repair Jul 2021]