TP-Link RE220 V3 hardware support

Can TP-Link RE220 V3 be supported?

I tried to upload the RE220 V2 factory firmware file and it did not work.
See pic, says hardware version is V3tp-link-re220-v3

Seems the internal pictures are here

looks like it is MT7628

Just taken delivery of one of these myself hoping to put OpenWrt onto it but mine's a V3 too. Hey ho. I can still use it with the TP-Link firmware but I'd have preferred a proper router OS. :wink:

I can see what might be a QSPI flash on those pictures but no DDR. Wonder if it's the K with internal 8MB?

Suppose I could dismantle it to see if I can get to a serial console. Finding the time ...