i can't update it even though I followed the instructions (power + <<< rewind) using SD card fat32
i used android file transfer in Mac
I only demoed that in an quiet environment. I never heard anyone describe the M as bright and thin except @soullinker20. Incidentally he/she is also using the Roxanne.
Was your M plugged into a charger? I found that update wouldn't start if the M's being charged.
no. it is 1/4 charged then after I perform the instruction, it gets stuck at "Calyx M" logo. I am pretty much sure my sd card is fat32 (i used it to update 901)
Same! I sold the DX100 purely because of the awful UI and that it would drain its battery to flat doing nothing if left on. I left the Calyx on by accident yesterday and it still had plenty of power many hours later. The champion though is the X5 which can be left on for days not playing with almost no battery drain.