I need a PINcode to unlock my phone?!

[AC Question]

I was trying to remove kaspersky antivirus from my phone, the app was a administrator file so i was trying to undo that and the screen went off, when i turned the screen on it asked for a pincode which i have no idea what the pincode is referring to, my SIMcard, phone or sth else????

 

[belodion]

The PIN for the lock screen. If you didn't set one, something has gone wrong. Try setting or changing your PIN via your Google account on a PC.

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