Como hacer downgrade modem a102u bit 7??

[zlAngelxAL]

Operation: Unlock
Selected model: SM-A102U
Software version: 41.2

Checking Login and Password... OK
Ballance: 30 crd.
You have 30 credit(s) left. This operation takes 5 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-A102U
Android version: 10
PDA version: A102USQS7BTH3
CSC version: A102UOYN7BTH3
Phone version: A102USQS7BTH3
Product code: SM-A102UZKATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: RF8N32JEWNM
IMEI: 356273108624399
HW version: REV1.0
RF cal date: 20200328
Chip name: EXYNOS7884B
Modem board: SHANNON327
Security patch: 2020-08-01
Boot Warranty bit: 0
SIM State: NETWORK_LOCKED
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Waiting ADB device... OK
Searching Samsung diag port... detected COM13
Checking diag port... OK
Searching Samsung modem... detected COM12
Searching server... OK
Checking server answer... modem not supported
Try downgrade modem if possible

Done with Samsung Tool PRO v.41.2