Bluetooth. I can't sync the phonebook

[JDP]

Hi,
I have a Pumpkin Android 5.1 car DVD and I can pair the phone, but I'm not able to sync the phone book of my phone. I tried with 2 different phones with the same result. Where could be the problem. Thanks.

[Jammy]

Hi,
Sorry about this.
Could you please first tell us your order number or buyer ID?
Our android 5.1 unit can support to pair the phone and sync the phone book via Bluetooth.
Please tell us the two kind phones you used, we test this function in our lab without any problem with several phones.
And if possible, would you mind take a video to help us check?
Regards

[JDP]

Hi,
Thanks for your answer, I was confused because I solve my problem just pushing the Sync button in the Bluetooth screen.
Sorry.