SD DISK][ Firmware V2.58D

 

SDBIOS.ROM

I'm glad to announce new firmware V2.58D

This firmware required ROMBIOS V1.81 minimum or Serial number From #70~

Without ROMBIOS upgrade, Your board wouldn't work HDD Emulation.

What was change?

Head moving routine optimized..

Buffer SAVE routine bug fixed.

And other some message changed. 

How to update firmware

 

WARNING

! Your APPLE][ must not lose electric power or be powered down while the firmware 

is updating.  If this happens, the SD Disk][ may to fail restart, or you won't be able to update firmware anymore.

In this case, please return the board to me for re-programming. (Free of charge to fix this issue but all shipping costs will be your responsibility).

If you are ready to upgrade, please read first and follow below carefully

 

1) Power OFF the APPLE][ and open the cover of your APPLE][.

2) Remove the SD Memory card only, leaving the Disk][ board in the computer. (Present working SD Memory card should work fine)

3) Copy the firmware(SDBIOS.ROM) to ROOT directory of SD Memory card and insert it SD card slot on Emulator board.

4) Push Dial button (YES) +Exit button simultaneously, then power ON the APPLE][.

5) Then release a while later. You will see as 'system check..................................'(if set 115200baud) on the terminal screen.

6) A while later, SD DISK][ Emulator will restart.

7) Once the SD DISK][ restarts, re-programming of the SD Disk][ card is complete.  Re-start your computer to enjoy your updated SD Disk][