After using the Google Find my Device service that has the ability to lock the phone with a PIN or Password (if you don't already have one), I tried unlocking it when it said the PIN ( the one I set with the Find my Device service and also note it was 4 digits ) was incorrect and tried several times, when I realised to enter the PIN at the lock screen it needed to be 8 digits. Any ideas on how to fix this? I have lots of important data on the phone so I really need to fix this ASAP!!
Also it's an old Samsung J5 2016 just so you know.