######### SW version R0.5.0 for X5S / X6 #########
#########            2017.01.20          #########
1. Fix stucking in logo when the device boot-up sometimes 
2. Enhance UI performance, add ttf Vector fonts 
3. Fix power LED lighten gratuitously
4. Fix LDAP contact connect issue because of the autu method
5. Add French tone
6. Fix the single-talking issue because the specific SDP packet(PCMA/88000/1)
7. Add screenshot and network capture feature.
8. Fix syslog feature
9. Fix the bug register failed after rebooting
10. Some feature enhancement and potential bug fix.