Samsung Galaxy Tab S9 FE 5G
It's not possible to start my tablet
Solution 4 of 6: Your tablet is locked to another operator
If your tablet is SIM locked, it needs to unlocked in order to use it with a SIM from another operator.
Before you can use a SIM from your operator, you need to unlock your tablet using an unlock code. To get the unlock code, contact the operator that locked your tablet.