The Big MegaFlashROM SCC+ SD Topic

Thanks for the reply!

I can confirm firmware skip works on real MB-H3

Hello, a user made a mistake pressing F3 and deleted the ROM-Disk.
Now he's attempting to reinstall the ROM-Disk but the only thing he receive from the MFR is "sd init error".
He can access the CursorUP-menu but each option returns "sd init error".
The same SD was used successfully in the past days before the ROM-Disk erasure.
Now he is trying to re-format the SD again and again but with no success.
I suggested him to format with FAT of Windows, and then format again with CALL FDISK (to be sure of the right format) but this command is not available in Basic.
To me is very difficult to operate from remote and so I kindly ask to Guillian what to do recover the MFR from the "sd init error". Thankyou in advance.

Restoring the ROM Disk is easy. Just follow thise steps:
- Download: https://msxcartridgeshop.com/bin/files.zip
- Unpack it and copy the files on the root of your SD card
- Put the card in the cartridge and switch on your computer
- Nextor (operative system) should boot and you will get a "A>" prompt
- Type in the command line:
OPFXSD ROMDISK.DSK /id
and press RETURN

That will reinstall ROM Disk (drive A: )

But the "SD init error" does not seem related to the ROM Disk. That is probably a problem in the SD card or SD slot.

If the CALL FDISK is not available in BASIC, then probably he also erased the Nextor kernel. In this case, he will need to reinstall Nextor before the ROM disk.

The easier way is to follow the recovery steps:
- Copy to an *EMPTY* SD card the file KERNEL.DAT. It is recommended to format the card using your MSX.
https://www.msxcartridgeshop.com/bin/kernel.zip

- Enter recovery mode (holding cursor up while booting)
- Select F4 option. The recovery process should take a few seconds.

But again, if he is getting a "SD init error", he will not be able to read any data from the SD card.
Check another SD card. If he gets the same error, check if there is something in the SD slot (e.g.: a small sticker used in some SD cards).
Also, the SD slot could be damaged, or a solder point broken. In that case, the cartridge needs to be repaired.

I have a problem with MFR SD and a 2nd external floppy disk drive connected in any slot.
My MSX is a Philips NMS 8245 with the internal floppy drive not working.
When I use the external floppy drive *alone*, without the MFR, it works good.
Whe I insert the MFR into slot1/slot2, and launch any command like FILES, SAVE, etc. the floppy drive enters in a loop with a bad sound "kkreeck, kkreeck" and I cannot do anything...
Is there a configuration of MFR that can be used in combination with an external floppy drive?
I'd like to to setup a realiable MSX workstation to preserve floppy drives to DSK