Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
Display 6.10-inch Front Camera 8-megapixel Rear Camera 16-megapixel RAM 4GB Storage 64GB Battery Capacity 3000mAh OS Android Pie Resolution 1440x3120 pixels