[8125, K-JAM, P4300, MDA Vario Software Upgrading] RoryB:
Adding an explanation for starting this thread

I started this thread because when I search for ways to get more memory, all I find is how others have things like "Big Storage" etc., but somewhere it will say cannot be done on wizard. I do not find very much about what can be done or why it cannot be done. I have found things about unlocking and unhidng the Extended_ROM. I used that as a basis for my trials and trying to understand how memory works in the wizard.

I started this thread hoping someone with much more knowledge than me would be able to shed light on the issue and it would be on the forum for future users to understand the memory issues on the wizard.

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In default.hv which I converted to rgu so I could read I saw the following:

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\PartitionTable][/FONT]
[FONT=Arial]"26"="BINARY"[/FONT]
[FONT=Arial]"25"="IMGFS"[/FONT]
[FONT=Arial]"23"="RAWFS"[/FONT]
[FONT=Arial]"22"="RAWFS"[/FONT]
[FONT=Arial]"21"="BINFS"[/FONT]
[FONT=Arial]"20"="BOOT"[/FONT]
[FONT=Arial]"0F"="FATFS"[/FONT]
[FONT=Arial]"0E"="FATFS"[/FONT]
[FONT=Arial]"0C"="FATFS"[/FONT]
[FONT=Arial]"0B"="FATFS"[/FONT]
[FONT=Arial]"07"="NTFS"[/FONT]
[FONT=Arial]"06"="FATFS"[/FONT]
[FONT=Arial]"04"="FATFS"[/FONT]
[FONT=Arial]"01"="FATFS"[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles][/FONT]
[FONT=Arial]"Folder"="Mounted Volume"[/FONT]
[FONT=Arial]"PartitionDriverName"="MSPART"[/FONT]
[FONT=Arial]"DefaultFileSystem"=""[/FONT]
[FONT=Arial]"MountFlags"=dword:0[/FONT]
[FONT=Arial]"AutoFormat"=dword:0[/FONT]
[FONT=Arial]"AutoPart"=dword:0[/FONT]
[FONT=Arial]"AutoMount"=dword:1[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV][/FONT]
[FONT=Arial]"BootPhase"=dword:0[/FONT]
[FONT=Arial]"MountFlags"=dword:11[/FONT]
[FONT=Arial]"Folder"="imgfs"[/FONT]
[FONT=Arial]"Name"="Microsoft Flash Disk"[/FONT]
[FONT=Arial]"PartitionDriver"="mspart.dll"[/FONT]
[FONT=Arial]"DefaultFileSystem"="IMGFS"[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV\IMGFS][/FONT]
[FONT=Arial]"XIP"=dword:0[/FONT]
[FONT=Arial]"MountFlags"=dword:11[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV\FATFS][/FONT]
[FONT=Arial]"FatCacheSize"=dword:100[/FONT]
[FONT=Arial]"DataCacheSize"=dword:800[/FONT]
[FONT=Arial]"EnableWriteBack"=dword:1[/FONT]
[FONT=Arial]"MountAsRoot"=dword:1[/FONT]
[FONT=Arial]"MountAsBootable"=dword:1[/FONT]
[FONT=Arial]"CheckForFormat"=dword:1[/FONT]
[FONT=Arial]"FormatTFAT"=dword:1[/FONT]
[FONT=Arial]"Flags"=dword:600014[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV\FATFS\Filters\fsreplxfilt][/FONT]
[FONT=Arial]"Order"=dword:1[/FONT]
[FONT=Arial]"Dll"="fsreplxfilt.dll"[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\MSFlash\Part00][/FONT]
[FONT=Arial]"CheckForFormat"=dword:1[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\MSFlash\FATFS][/FONT]
[FONT=Arial]"MountHidden"=dword:0[/FONT]
[FONT=Arial]"MountAsROM"=dword:0[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\MSPART][/FONT]
[FONT=Arial]"Dll"="mspart.dll"[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\IMGFS][/FONT]
[FONT=Arial]"ShadowROM"=dword:1[/FONT]
[FONT=Arial]"Paging"=dword:1[/FONT]
[FONT=Arial]"Dll"="imgfs.dll"[/FONT]
[FONT=Arial]"FriendlyName"="Image-Update Filesystem"[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\FATFS][/FONT]
[FONT=Arial]"CacheSize"=dword:2000[/FONT]
[FONT=Arial]"Flags"=dword:44[/FONT]
[FONT=Arial]"CacheDll"="diskcache.dll"[/FONT]
[FONT=Arial]"Util"="fatutil.dll"[/FONT]
[FONT=Arial]"EnableCache"=dword:1[/FONT]
[FONT=Arial]"Paging"=dword:1[/FONT]
[FONT=Arial]"Dll"="fatfsd.dll"[/FONT]
[FONT=Arial]"FriendlyName"="FAT FileSystem"[/FONT]

In boot.rgu I found

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager] [/FONT]
[FONT=Arial]"PNPUnloadDelay"=-[/FONT]
[FONT=Arial]"PNPUnloadDelay"=dword:5dc[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\TRUEFFS_DOC\IMGFS][/FONT]
[FONT=Arial]"MountFlags"=dword:11[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\TRUEFFS_DOC][/FONT]
[FONT=Arial]"Name"="DiskOnChip M-Systems"[/FONT]
[FONT=Arial]"Folder"="imgfs"[/FONT]
[FONT=Arial]"MountFlags"=dword:11[/FONT]
[FONT=Arial]"BootPhase"=dword:0[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\Drivers\BuiltIn\TrueFFS][/FONT]
[FONT=Arial]"Flags"=dword:1000[/FONT]
[FONT=Arial]"Index"=dword:1[/FONT]
[FONT=Arial]"Profile"="TRUEFFS_DOC"[/FONT]
[FONT=Arial]"Dll"="TrueFFS.dll"[/FONT]
[FONT=Arial]"Prefix"="DSK"[/FONT]
[FONT=Arial]"Order"=dword:0[/FONT]
[FONT=Arial]"WindowBase"=dword:0[/FONT]
[FONT=Arial]"IClass"=multi_sz:"{A4E7EDDA-E575-4252-9D6B-4195D48BB865}"[/FONT]
[FONT=Arial]"BootPhase"=dword:0[/FONT]
[FONT=Arial]"AutoDPDMode"=dword:1[/FONT]
[FONT=Arial]"SoftwareWriteProtect"=dword:1[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Autoload\TrueFFS][/FONT]
[FONT=Arial]"DriverPath"="Drivers\\BuiltIn\\TrueFFS"[/FONT]
[FONT=Arial]"LoadFlags"=dword:1[/FONT]
[FONT=Arial]"BootPhase"=dword:0[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\TRUEFFS_DOC1][/FONT]
[FONT=Arial]"DefaultFileSystem"="FATFS"[/FONT]
[FONT=Arial]"Name"=""[/FONT]
[FONT=Arial]"PartitionDriver"=""[/FONT]
[FONT=Arial]"Folder"="Extended_ROM"[/FONT]
[FONT=Arial]"MountHidden"=dword:1[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\TRUEFFS_DOC1\FATFS][/FONT]
[FONT=Arial]"Flags"=dword:14[/FONT]
[FONT=Arial]"FormatTfat"=dword:1[/FONT]
[FONT=Arial]"EnableWriteBack"=dword:1[/FONT]
[FONT=Arial]"DataCacheSize"=dword:00000080 ;128 sectors(128*512=64KB)[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\AutoLoad\TRUEFFS_DOC1][/FONT]
[FONT=Arial]"DriverPath"="Drivers\\BuiltIn\\TrueFFS1"[/FONT]
[FONT=Arial]"LoadFlags"=dword:1[/FONT]
[FONT=Arial]"Order"=dword:1[/FONT]
[FONT=Arial]"Bootphase"=dword:1[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\Drivers\BuiltIn\TrueFFS1][/FONT]
[FONT=Arial]"Profile"="TRUEFFS_DOC1"[/FONT]
[FONT=Arial]"Index" = dword:2[/FONT]
[FONT=Arial]"Dll" = "TrueFFS.dll"[/FONT]
[FONT=Arial]"Prefix" = "DSK"[/FONT]
[FONT=Arial]"Order" = dword:1[/FONT]
[FONT=Arial]"Ioctl" = dword:4[/FONT]
[FONT=Arial]"Use8Bit" = dword:1[/FONT]
[FONT=Arial]"WindowBase" = dword:00000000[/FONT]
[FONT=Arial]"IClass"=multi_sz:"{A4E7EDDA-E575-4252-9D6B-4195D48BB865}"[/FONT]
[FONT=Arial]"AutoDPDMode" = dword:1[/FONT]
[FONT=Arial]"SoftwareWriteProtect"=dword:1[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\Comm][/FONT]
[FONT=Arial]"AutoRun"="\\Windows\\AutoRun.exe"[/FONT]
[FONT=Arial]"AutoRunCFG"=[URL="file://\\Extended_ROM\\Config.txt"]\\Extended_ROM\\Config.txt[/URL][/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\TRUEFFS_DOC2][/FONT]
[FONT=Arial]"DefaultFileSystem"="FATFS"[/FONT]
[FONT=Arial]"Name"=""[/FONT]
[FONT=Arial]"PartitionDriver"=""[/FONT]
[FONT=Arial]"Folder"=""[/FONT]
[FONT=Arial]"MountFlags"=dword:6[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\TRUEFFS_DOC2\FATFS][/FONT]
[FONT=Arial]"Flags"=dword:00600014[/FONT]
[FONT=Arial]"FormatTFAT"=dword:1[/FONT]
[FONT=Arial]"CheckForFormat"=dword:1[/FONT]
[FONT=Arial]"MountAsBootable"=dword:1[/FONT]
[FONT=Arial]"MountAsRoot"=dword:1[/FONT]
[FONT=Arial]"EnableWriteBack"=dword:1[/FONT]
[FONT=Arial]"DataCacheSize"=dword:00000080[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\Drivers\BuiltIn\TrueFFS2][/FONT]
[FONT=Arial]"Index"=dword:3[/FONT]
[FONT=Arial]"Profile"="TRUEFFS_DOC2"[/FONT]
[FONT=Arial]"Dll"="TrueFFS.dll"[/FONT]
[FONT=Arial]"Prefix"="DSK"[/FONT]
[FONT=Arial]"Order"=dword:0[/FONT]
[FONT=Arial]"Ioctl"=dword:4[/FONT]
[FONT=Arial]"Use8Bit"=dword:1[/FONT]
[FONT=Arial]"WindowBase"=dword:0[/FONT]
[FONT=Arial]"IClass"=multi_sz:"{A4E7EDDA-E575-4252-9D6B-4195D48BB865}"[/FONT]
[FONT=Arial]"AutoDPDMode"=dword:1[/FONT]
[FONT=Arial]"SoftwareWriteProtect"=dword:0[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Autoload\TrueFFS2][/FONT]
[FONT=Arial]"DriverPath"="Drivers\\BuiltIn\\TrueFFS2"[/FONT]
[FONT=Arial]"LoadFlags"=dword:1[/FONT]
[FONT=Arial]"Order"=dword:0[/FONT]
[FONT=Arial]"BootPhase"=dword:1[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\TRUEFFS_DOC2\FATFS\Filters\fsreplxfilt][/FONT]
[FONT=Arial]"dll"="fsreplxfilt.dll"[/FONT]
[FONT=Arial]"order"=dword:1 ; must be loaded before other filters[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\FATFS][/FONT]
[FONT=Arial]"FriendlyName"="FAT FileSystem"[/FONT]
[FONT=Arial]"Dll"="fatfsd.dll"[/FONT]
[FONT=Arial]"Flags"=dword:00000024[/FONT]
[FONT=Arial]"Paging"=dword:1[/FONT]
[FONT=Arial]"EnableCache"=dword:1[/FONT]
[FONT=Arial]"CacheSize"=dword:0[/FONT]
[FONT=Arial]"Util"="fatutil.dll"[/FONT]

[FONT=Arial][HKEY_LOCAL_MACHINE\System\StorageManager\filters\HTCFSDSPY][/FONT]
[FONT=Arial]"Dll"="htcfsdspy.dll"[/FONT]
[FONT=Arial]"Order"=dword:0[/FONT]

Of course there is more than just the above in those files. What I wonder since I do not know enough to know what cannot be done is...

Can you change these settings to not define a region to be extended ROM?

Can you redefine the rest to use this left over space?

Can any of this space be used for program memory instead of storage memory?

I do not know if the dll files limit the size of the regions or is some of the settings determine the sizes.

As I said, I do not know enough to know the limitations, but the little boy saw all that was needed was to let the air out of the tires to get the truck unstuck from under the bridge.

Note: This work was done on my G4