samsung a405fn unlock error

Samsung a405fn unlock error

how to unlock it or downgrade modem



Checking Login and Password... OK
Ballance: 50 crd.
You have 50 credit(s) left. This operation takes 5 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-A405FN
Android version: 9
PDA version: A405FNXXU2ASF3
CSC version: A405FNOXM2ASF2
Phone version: A405FNXXU2ASF2
Product code: SM-A405FZKDEVR
CSC country code: Germany
CSC sales code: DBT
Phone SN: R58M72FMKXR
IMEI: 358585107400275
HW version: REV0.3A
RF cal date: 20190708
Chip name: EXYNOS7904
Modem board: SHANNON327
Security patch: 2019-06-01
Boot Warranty bit: 0
SIM State: ABSENT,ABSENT
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.37.0