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Downgrade files:

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name	OZ4.0 slot 0 downgrade + Vision2 + Spell-Master.zip

OZ version	Downgrade Method	Notes
5.0	Index `◇` `U` `P` `D`	None
4.7.1	Index `◇` `U` `P` `D`	The screen may occasionally stay off after the write to flash and the Z88 may not reset automatically.

To

If that happens, leave for 5 minutes to be sure it has completed

leave for 5 minutes

, then reset manually.

< 4.7.1

RUN"ROMUPDATE.BAS" from BASIC

(the Z88 application version of RomUpdate does not work here)

Copy both romupdate.bas and romupdate.crc to RAM.
The screen will corrupt as the flash process begins. One row will blink. This is normal. Wait until complete.

Image Modified

Downgrade ROM Manifest

Code Block

language	none

CFG.V3
; OZ ROM for slot 0 and total of 24 banks to update.
OZ.0,24
; Bank file, CRC, destination bank in slot 0.
"ozs0-400.32",$9de67a39,$00
"ozs0-400.33",$1d32d297,$01
"ozs0-400.34",$65ed5623,$02
"ozs0-400.35",$e2e022c6,$03
"ozs0-400.36",$8758704a,$04
"ozs0-400.37",$b860cf23,$05
"ozs0-400.38",$d3104e3f,$06
"ozs0-400.39",$5c5de229,$07
"eazylnk-524.40",$9732f962,$08
"flashst-198.41",$cfa6c666,$09
"spell.42",$96ee9077,$0a
"spell.43",$05f85bc3,$0b
"spell.44",$ff58c545,$0c
"spell.45",$ebfef5c3,$0d
"spell.46",$f3badaf9,$0e
"spell.47",$3a7c540b,$0f
"spell.48",$853282d3,$10
"spell-xymdm.49",$c84cab67,$11
"vision2-206.50",$eca18d37,$12
"vision2-206.51",$7cbc18ea,$13
"file-area.52",$7c344d49,$14
"file-area.53",$ffdd48b4,$15
"file-area.54",$4a2d56c7,$16
"ozs0-400.63",$d5daddb3,$1f

Versions Compared

Old Version 64

New Version Current

Key

Downgrade ROM Manifest