J600f U6 Downgrade Modem
 

Waiting ADB device... OK
Reading phone info...
Model: SM-J600F
Android version: 9
PDA version: J600FXXU6BSK6
CSC version: J600FOJM6BSK6
Phone version: J600FXXU6BSK6
Product code: SM-J600FZKGXSG
CSC country code: UAE
CSC sales code: XSG
Phone SN: RZ8KA1SSBHE
IMEI: 869...
HW version: REV0.3A
RF cal date: 20181017
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2019-12-01
Boot Warranty bit: 1
SIM State: ABSENT,ABSENT
Checking Super user right... true
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching server... OK
Checking server answer... modem not supported
Searching server... OK
Checking available files... not found compatible file
Try downgrade modem if possible.

Done with Samsung Tool PRO v.39.1

Need Downgrade Modem ???

Hello, j600f with J600FXXU6BSK6 firmware with December 2019 security patch, it is not supported for patch cert or unlock via credit server with z3x