I emailed EC offroad and they said this can be caused by low battery voltage or too many apps installed. My battery is "good" according to my tester but was at 12.55 v after sitting a week off the charger. I did run my winch a little bit this weekend without the engine running and the long boot thing happened afterward several times. I drove it back from the lake this weekend (~125 miles) and its fast booting now. I'll see what happens after 24hours. I may swap to another battery just to see if it makes a difference.
Sergey is trying to help me. He doesn't think it is a battery issue. He checked the version of the MCU file and it appears correct but he suggests downloading a new file and loading it. He sent me a link to down load the file and says the file is the same for all manufactures (EC Offroad vs. Phoenix). The file name is RL78.bin. There is a
Youtube video on how to do the MCU file upgrade. This makes me a bit nervous. I've emailed EC Offroad and asked about getting a new MCU file. We will say what they say.
Here is my system info, can anyone confirm the MCU version is the same?
Edit: if you have a Phoenix Tesla HU installed in a pre 2016 LC, please take this same pic and post. I want to compare. I think the “APPver” is the firmware. Sergey tells me EC Offroad’s firmware is the same as all other OEMs. I want to see what this screen looks like for a Phoenix unit.