Matsui MAT 101MR Manuel D'instructions page 17

3. upgrading. As the picture shows:
4. upgrading is done. There will be a notice appeared on the player as follows:
Firmware upgrading is used for improving and maximising the capability of the product.
It will not affect the normal running if you do not use the firmware upgrading.
Do not disconnect the product while upgrading as this could damage the product.
All manuals and user guides at all-guides.com
16