There is nothing that can go wrong other than if you do some steps wrong, there are ways you can completely destroy your device

I was checking around ways to do it and it required rooting your device (changing internal values and stuff I'm not pretty sure) but it voids warranty and if you are currently in android 13 I won't prefer for you to do it

I was reading around your old posts and I got to know what was wrong

You can flash your firmware, you just need a mild knowledge on laptops

Also there may be update issues, you might not be able to update it in Philippines but all the other stuff works fine