Self Protection Failed Error Code 4 X360ce 2021 -

For some online fixes, a file called OnlineFix.ini would get corrupted after the first launch. Alex found that setting this file to "Read-only" in the properties menu stopped the error from coming back the next time they played.

Temporarily disable your antivirus software to see if the error persists. If the software runs, add the x360ce folder to your antivirus's exclusion list. Additionally, creating a new inbound rule in the Windows Defender Firewall to block or allow the specific application can sometimes bypass communication errors. self protection failed error code 4 x360ce 2021

"Self protection failed. Error code: 4"

Version 3 is older and lacks modern controller support (PS5 DualSense, Switch Pro). Use only as a last resort. For some online fixes, a file called OnlineFix