USSD codes disabled

[justmeagain79]

I use the #*9900* USSD code on my phone to tweak my settings. Lately, I can't use any USSD codes at all!! Is it a carrier issue or are they stopping access to them. This is what I get now.

[steeveau]

Just change csc code of country or use *#0228#

[justmeagain79]

No dice friend. I also can't access the download screen while my phone is off. I used it to clear cache partition and or factory reset. I can no longer access those options anymore either. It can't be a coincidence.

[ButtaBean_420]

Try *#9900# this brings up SysDump if that's what you are looking for

[justmeagain79]

I can't run USSD codes to access that screen anymore is my point. This is what I get now.

[betancd · Accepted solution]

Go to Settings - > Security and Privacy - > Auto Blocker and turn if off. You should be able to use codes after that.

Please review what auto blocker does before disabling it since it is an additional security measure.

[justmeagain79]

You nailed it my friend!! Will this allow me to get to that cache partition & factory reset(while device is off) etc.?

[betancd]

I do not believe those are related but worth a try I guess! Glad your codes work.

[ButtaBean_420]

I didn't even think about that as a solution 👍

[alone799]

S20 ultra ussd code running don't working