help s21 ERROR (1020) : Failed reading SimLock ID!

[jk1214]

Loading ADB module...........OK
Starting ADB module...OK
Searching for SAMSUNG ADB device...OK
Checking device authorization...OK
Reading ADB device information...
ADB Serial Number : R5CR71SH4KP
Model Name : SM-G991U
Serial Number : N/A
Android Version : 11
Carrier : DSH
This operation takes 5 credits with NO REFUND, Continue? YES
AP Version : G991USQU4AUF5
CP Version : G991USQU4AUF5
Warranty VOID : 0
Algorithm : New 2021 SDK
Debug Level : 0x4948
Loading RIL applet...OK
Starting RIL applet...OK
Reading CP information...OK
IMEI : 350336264742663
SimLock status : NETWORK LOCKED
ERROR (1020) : Failed reading SimLock ID!