Flashing new uboot to DM200 modem

Hi all,

Looking for some help with my Netgear Modem.

It was pulled from a D8500 router and presently runs a DM201 uboot to boot from tftp.

I've compiled the DM200 firmware from source and have a uboot.bin file.

My aim is to flash the DM200 uboot from the working DM201 uboot to turn flash the DM200
modem image.

I'm hoping someone here can help with some guidance how.