Quoted from mymalibu:Update, thought I had it covered with new batteries and it worked for a few days now back to factory resets every time. Need to check where battery holder connects to the board... and pin 28 of u8 as suggested by Zacaj....
Check the battery holder terminals for corrosion. sometimes they get corroded and failed to make contact with the battery i usually clean them with a knife by scraping them. It will work and get you by. If its too bad changing the battery holder is best.