PROMISE Technology Inc.
14 October 2019
- Last edited 17 December 2019
A few years ago I tried downgrading the firmware in an NS4300, it still booted and the data was accessible, but it could not be managed at all. Firmware downgrades are not without risk.
We have a KB for safe mode with the NS4600 and I'm pretty sure the NS4300 procedure is the same.
In my experience, this may not work. The problem is that safe mode creates a ramdisk sized for the original firmware files, the latest firmware files are larger, and in my experience they were too large to fit in the ramdisk. If this is the case you won't be able to change the firmware, so you can just reboot and be back where you were.
But if you wish you can give it a try.