Prior to installing notes: You will not be able to edit your rev matching settings in N custom after installing it - REGARDLESS IF YOURS CAME FROM A MANUAL FACELIFT i30N. You should select what rev matching setting you want to use mostly on the prefacelift headunit before removing it. I did Sport and if I want to use sport+ rev matching then I can go into full N mode. You can always install the old headunit back in to change N custom settings for rev matching.
Credit where it's due: Thank you to the Facebook group Hyundai N Performance Owners Club Australia for always having a bunch of resources. ( / 1474892669264371 )
For some reason even if the headunit is from a manual facelift i30n, the headunit will think it's a DCT. There is no current workaround.
The battery warning tends to come up when you're stationary, not as often when driving. Still haven't found a solution to get rid of it completely yet.
Update: I managed to get into engineering mode thanks to the below video. Couldn't find any settings to tinker with unfortunately.
• EV6 Engineering Mode a...
Original headunit install video from a.Sidney: • Facelift i30N 10.25” H...
0:00 Intro
0:10 Install
1:48 Testing settings/menu
2:22 Android Auto
2:37 N mode settings
4:05 N mode issue explanation
4:19 Install issue that will arise
4:57 Further N mode exploration
5:58 Oil and coolant temp monitors
6:40 Reverse camera
6:46 Audio test
7:53 Battery warning
8:49 Battery warning workaround
9:18 Steering wheel controls
9:34 Headunit staying powered on & solution