LUX checker: No replacement, no refund.
US7(if not gg), US10(if not gg) need provide dead proof(Must be Google).
All after-sales support is available the same day after delivery.
List of Checkers:
- US6,SMS3: LUX
- US7,US9,US5: Flash
- US7,US10 can choose GooglePay check
- US10,SMS,US5: MUX or Coco