I just finished updating my Pioneeer Nex-8000 maps. I bought them off a Dealer on eBay. I've used this dealer in the past for 2 other updates on older AVIC (Z1,Z2,Z3) units and he is top notch. Everything he sells works....
After following his multi-page instructions complete with screen shots, I arrived at the end and the head unit said I was 100% complete. Just restart the unit and you where good to go.
After restart I get a Black screen that for a split second has a White Rectangle in the middle with what looks like a small outline of a circle (reminds me of the Windows 'circle' when it is processing). Then the unit stays Black Screen for 3-4 seconds and reverts to whatever source screen that is playing (HD Radio, iPOD, DVD, Sirius,etc) Doesn't matter if I hit the MAP button on the units faceplate, or the "NAVI" GUI touchscreen.
I checked the GPS info on the Head unit and it says GPS Antenna OK and that it is getting 6 or 7 Satellites.
Need help on this one.
unreleased... latest is 2017.q3 from naviextra