My M9 plus have always had problem with satellite going down, usually before firmware 1.5 it was only one at the time that went red blinking and then it came up automatically again after 2-3 minutes. With firmware 1.5 and up both is going down alot can be between 15 minutes or 1 hours, 2 hours, but they are usually dead for 30 min or more, can be green can be blinking red (mostly green).

Main M9 Plus is stable., I have rotated AP around and I dont think its AP, or its all of them that is bad.

But how can I downgrade firmware, 1.42 was alot better, still going down but its was about 3-5/day.

/Anders