Tricked into enabling mobile sharing to steal data

This number claims to be an officer from the Provincial Electricity Authority (PEA). They claim that tomorrow an employee will come to replace the electricity meter for free and ask for the original meter warranty document, which is an A4 paper, to process a refund (which probably doesn't exist, and if it does, it's been so long that no one would have kept or found it). When the victim says they don't have it or can't find it, they say it's okay and ask to add the LINE account PEA THAILAND with an employee code. Then they ask to write a message on LINE, and the officer will call. They will show a profile picture in an official uniform with a name to seem credible. They call saying they will search for the meter warranty. After a while, they say the amount is 28,000 baht and ask to accept documents via mobile to give to the officer who will remove the old meter, etc., using Google Meet to share the screen to send documents. Then they tell you to wait a moment. I asked a well-known officer who works in the same place about the person named xxxxx and what position they hold now. They said he is in the district accounting department, which made me suspicious because he was actually the chief technician of the district. I called a friend and confirmed they are definitely scammers and advised to turn off the Wi-Fi, restart the device, look for suspicious apps or reset the device and reinstall apps immediately. I quickly searched for suspicious apps that had come in and deleted those related to Google screen sharing, found Google Meeting, and deleted it. I changed all mobile banking passwords for every bank and important files. So, I am reporting this to warn others to be careful.