Dump the chips 25Q016 and 25Q064 with new printer Canon Pixma MG3640, in the presence of the programming and soldering iron , to help relieve MG3640 error 5B00, 5B02. For more information about the whole process of looking at the following link: http://printblog.ru/remont-printerov/remont-printerov-i-mfu-canon/canon-mg3640-oshibka-5b02-sbros.html