Looks like I can't:
Device mr16 not supported by this image Supported devices: meraki,mr16 mr16 - Image version mismatch: image 2.0, device 1.0. Please wipe config during upgrade (force required) or reinstall. Reason: Partitions differ from ar71xx version of MR16. Image format is incompatible. To use sysupgrade, you must change /lib/update/common.sh::get_image to prepend 128K zeroes to this image, and change the bootcmd in u-boot to "bootm 0xbf0a0000". After that, you can use "sysupgrade -F". For more details, see the OpenWrt Wiki: https://openwrt.org/toh/meraki/mr16, or the commit message of the MR16 ath79 port on git.openwrt.org. Invalid image type. Image check failed.
The uploaded image file does not contain a supported format. Make sure that you choose the generic image format for your platform.
HP ProCurve 3500yl-24G-PoE+ J9310A 24-Port Gigabit
eth standard 1000Base -T
I tried cat5e and cat6 cables even cat6 25cm long cable of course ready to use not made by my own.