Hi
@Shanling -- just got the M3X a week ago, and generally am incredibly happy and impressed with the unit all-around; good job on this one!
I do have one concern, and that is the fairly slow start up time. Without an mSD card, the boot up slowish but it's bearable. After I added a 400G MicroSD Card (genuine SanDisk Ultra) mostly filled with lossless files, the unit takes an additional minute or so after the main boot, sitting on the screen saying "android is starting up...". After this completes, it operates fine without any noticeable delays. Several questions in relation to this, if you'd be so kind as to answer:
1) which filesystem is recommend by Shanling for large capacity cards? FAT32 or exFAT? If exFAT, what sector size -- 32K?
2) anything at all can be done by the user on the system level to speed up/optimize the boot time -- especially that portion after main boot where it says "android is starting"? what is it doing -- some sort of indexing? is it possible to turn it off?
3) is there some sort of a standby/sleep mode that isn't full shutdown, so the unit would wake up quicker -- at the cost of battery life, obviously? I am not finding anything like that in the settings -- only screen sleep and full off...
4) can any of this be improved with future firmware updates?
Thank you for any and all information!