We updated our M700 multicell system to 5.10B0002. The three M700 updated w/o problems. Same with 9 out of 10 M65 handsets. One M65 however did not survive. The M700 first showed for a long time "Place the handset in the station", next morning it said "Restarting" and "Removed" as status. What am I to do now ? Removing and reassembling the battery did not help, neither swapping the charging stations. Thanks for your suggestions.