@Tominsh31: This is a bit of a tough one, as your A70 charger works with another device, and an alternate charger has worked with the A70. Does the original charger fit snugly into the USB port of your A70? Have you checked the port for any dirt or debris that might be affecting the connection?
@Tominish31: If the A70 charger is temperamental, and if you phone is less than 12 months old, then I recommend reaching out to our Help Desk on 0333 000 0333 to enquire about obtaining a warranty replacement. You'll need valid proof of purchase to make a claim, which needs to be in the form of an invoice, receipt or network contract.
