fyi... You don't have to replace it with the DPC-18. As long as you match communication protocol, most all Bafang compatible mid drive displays are interchangeable.
Personally I prefer/use the third party APT 860C, though I think there's some new ones out there. You can find these in the same places, just confirm compatibility with the seller before purchasing.
I've actually got a "Voltbike" branded DCP-18 (round UART plug) on my hub drive Outback??
I guess it's just some proprietary firmware that makes it work ??
(Actually, there's A Lot of settings and adjustments that don't do anything, so it kinda works. )