After messing around in the phone menus and nearly locking my SIM, I realized this isn't a Samsung problem—it's an O2 network problem.
To remove call barring on an O2 Samsung S9, follow these steps: samsung s9 remove call barring o2
After resetting, set up the phone again. Call barring should be off by default unless O2 has it enabled on their side. After messing around in the phone menus and
The Samsung Galaxy S9 is no longer supported with Android updates, but network features like call barring remain fully functional. If you’ve tried all the steps above and still cannot remove call barring, O2 may have placed a network-level restriction on your account – a quick call to 202 from your O2 mobile (or 0344 809 0202 from any phone) will resolve it. The Samsung Galaxy S9 is no longer supported
I’ve been a loyal Samsung Galaxy S9 user for years. Despite its age, it’s still a beast of a phone—sleek, powerful, and reliable. However, my recent experience trying to remove call barring has been a needlessly complicated headache. If you are an O2 customer trying to unlock your calling features, prepare yourself for a journey.
If 0000 or 1111 doesn’t work:
If you’re on the , here’s how to remove Call Barring on your S9, step by step.