A305F Network Unlock - need help

Checking Login and Password... OK
Ballance: 15 crd.
You have 15 credit(s) left. This operation takes 5 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-A305F
Android version: 9
PDA version: A305FDDU2ASE5
CSC version: A305FODM2ASE5
Phone version: A305FXXU2ASE5
Product code: SM-A305FZBFKSA
CSC country code: India
CSC sales code: INS
Phone SN: R58M438BNSH
IMEI:
HW version: MP 0.200
RF cal date: 20190412
Chip name: EXYNOS7904
Modem board: SHANNON327
Security patch: 2019-06-01
Boot Warranty bit: 0
SIM State: ABSENT,REGIONAL_LOCKED
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... OK
Available CP file for downgrade, try download and flash? Continue? Yes
Checking local file... OK
Switching to flash mode... OK
Searching USB Flash interface... COM28 detected
Setup connection... OK
Reading data from phone... OK
Sending data to phone... OK
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching server... OK
Checking server answer... modem not supported

Done with Samsung Tool PRO v.36.8




already tried : FA_CP_A305FXXU2ASE2.tar.md5 [flash error]