BQ25792: BQ25792 Battery Charging Problem

Hello,

In the battery charger design which is done by using BQ25792, battery is not charging. Would you please find below PCB schematic. 

• No operation can be made from I2S. 
• D + and D- pins were also not used. 
• VBUS will be 5V. ILIM_HZ to be 500mA.
• The PROG will be 3S and 1.5MHz.
• The circuit does not do any boost or buck.
• There is energy flow from BAT pin to SYS.

Can you please check and advise?

Thank you.