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BQ79731-Q1: BQ79731-Q1 different version identify

Part Number: BQ79731-Q1

Hi Expert,

Sorry to bring you so much confusion. My customer is using BQ79731-q1 in their project before i take over the company.

My sales order 10 pcs sample of pbq79731phpq1 for customer. However, when they change the new devices to the normal pcb, the communication cannot work. 

I told the customer to take a photo of the 2 version of BQ79731-q1.

Customer confirm that the position is right.

Would you mind helping me to identify the accurate part number? Is there any change on these device?

Thanks a lot!

Imelda