1) Request a Free Estimate to get the maximum price for your Huawei P20 pro Back Glass repair or request our Phone repair service and receive a free prepaid post label within minutes for your Huawei repair near you. 2) Use the store finder on the bottom of our page to find an authorised Huawei service centre nearby and drop off your Phone. Lift the bottom edge with the suction cup, opening a slight gap between the rear glass and the frame. Insert an opening pick in the gap and slide it to the bottom right corner. Leave it there to prevent the adhesive from resealing. Huawei P20 Pro Battery Replacement Guide ID: 123457 -Draft: 2020-02-10 aCPXrAE.