After a necessary mainboard replacement (keyboard and LCD-Driver defective), there are problems with the manual firmware update. The replacement part supplied (likely used in several Brother laser printers) has a different main (Ver. ZN U2408270049) and sub-ROM (Ver. 1.23) version than the original part. The Brother update tool starts the update normally but aborts at 90% completion. What could be the cause of this problem?
Brother MFC-L9570CDW Update Problems
- Thread starter Holly1959
- Start date