yeah, there's 2 missing pin on the motherboard port.
before I do something, is there any benefit to stay in lower FW now? my OFW is 5.1.0.
If you are in an unpatched switch there is no benifit.
if you are on a mod chipped switch there is no benefit.
If you are interested in changing to a software only hack in the future that might likely never come there might be a benefit (but probably not.) If so it would have been better to stay at/below 4.x so 5.x isn’t really that special anyway.
or should I upgrade to the latest?
You can upgrade to the latest on emunand without impact to your Sysnand.
Be aware that you will probably to block (autonogc) Game Card FW updates on Emunand if you don’t upgrade your OFW as well.
thank you all