Chosen Solution
my Note 2 (n7100) has an overheat issue. It overheats when in use (battery inserted, whether charging or not charging). However, i discovered that, after a precautionary removal of the battery, it also overheats if i keep it plugged in to a charger (battery removed). Does this point to a fault within the charging circuit? Could this potentially be fixed by replacing the USB board?
Hello Walter Stocker , As you explained in the question I guess the fault occur from power management module. Replacing USB interface doesn’t make sense & won’t fix the heating issue. If you have good BGA reworking skills you can replace the PM ic which cost less than 10 USD Chip function : Main power management module Chip ID : MAX77686 Can get the chip from donor board : yes : i9300 (Samsung galaxy S3) also having same chip Where can buy : parts 4 repair ebay aliexpress Cheers!