I've never tried to downgrade a NAM, but the procedure to upgrade is to connect a Backpack with the CD inserted to the printer port, insert the boot disk in the floppy drive, then reboot the NAM and wait to hear ascending tones. There is a utility on the CD to create a boot disk.
Why do you need to downgrade the NAM? R4.1 is backwards compatible.
I'm not interested in backwards compatibility.
Customer demands 4.0.4C
Customer gets 4.0.4C
In my opinion it can only be done as so:
-boot up NAM with monitor package
-remove folders using OS/2 window
-del ACCESS2
-del ST
-Install NVM using 2.1 CD loader and CD
-Upgrade to NVM version 3
-Upgrade to NVM version 4.0.4C
Procedure will not work on NAM V3G since the AMD platform requires OS/2 WARP version 4.
NVM CD version 2.1 deletes OS/2 WARP version 4 and installs OS/2 version 3
NAM V3G will not boot with OS/2 WARP version 3 because it cannot boot OS kernel.
Therefore the procedure only works on NAM version 1, 2, 2G but renders NAM 3G hard drive into paperweight.
I was looking for some method to re-install NVM 4.0.4C on NAM already running 4.1
Expected method:
-delete enough files to allow NVM 4.0.4C upgrade CD to overwrite existing NVM 4.1 voicemail files.
Let's please think of this as a lab question shall we?.
It is stated there is nothing wrong and only needing to know how to downgrade and nothing further.
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