There's a new update for PadFone S 9/15/2015

V12.2.2.37-20150827

【Model Name】
PF500KL

【Release Date】
2015/09/15

【Release Note 】

1 Enhanced system performance
2 Improve compatibility of SIM card
3 Improve quality of communication
4 Fix system UI virtual key issue
5 Fix external storage path issue

I have a PadFone S and when I went to check for a system update it began downloading.