When I'm typing on my phone's keyboard, it sometimes inputs random letters or characters that I haven't pressed. It makes composing messages very difficult.

If your phone supports wireless charging, try using a wireless charger to bypass the physical port.

Carefully clean the charging port with a soft brush or compressed air to remove any debris.

Inspect the phone for any visible signs of damage, such as a swollen battery or cracked screen, which might indicate internal issues.

Take the phone to a qualified repair technician for diagnosis and potential component replacement.

If a force restart doesn't work, try booting into recovery mode to clear the cache or perform a factory reset (this will erase data).

Research the specific button combination for your phone model to force a restart (e.g., holding power and volume down buttons).

A faulty charger or cable might be preventing the phone from charging properly.

Connect the phone to a known working charger and outlet for at least 30-60 minutes. Use the original charger if possible.

Check the permissions granted to installed apps and revoke any that seem unnecessary or suspicious.

Install and run a reputable antivirus/anti-malware scanner on your tablet to check for and remove any threats.