I have 2 V4600’s with different problems on both. My New Superbase V4600 which I foolishly updated the Master Frimwsre and the AC Firmware. After the update, I can NO longer enable AC Power Output. It will NOT Charge via 110 Volt Power and it will NOT Charge via a Harbor Freight Predator 5000 Inverter/Generator. I have it connected to a single Heline 530 Watt Solar Panel which charges 50 to 80 Watts. I am able to connect with both Bluetooth and WiFi. On my Old Superbase V4600 I updated the AC Power Firmware to v2.2.7. I Can enable AC Power Output, it Charges with the Harbor Freight Predator 5000 Inverter/Generator. I have not tried via 110 Volt Power. However I can NOT connect via Bluetooth or WiFi. One take away is NEVER update more than 1 Firmware at a time.