Specifically, the D01G firmware top (build 2.4.7 or higher) addresses:
The device will automatically reboot once the process is complete NTTドコモ Manual Download d01g firmware top
If you are looking to revitalize this legacy tablet (originally released with Android 4.4.2 KitKat), your "top" firmware options involve rebranding or unbricking. Official Support : NTT DOCOMO provides the original User's Manual and basic update guides Specifically, the D01G firmware top (build 2