I bought a new touch screen on internet and decided to replace it myself, i've done it with other phones, but in this case, this exact model makes it almost imposible to replace it, the reason is because the touch and the LCd display are all glued together, not only on the edges but the whole contact area, the same happens with the samsung galaxy S4, its better to buy all the screen and not only the touch crystal, anyhow, i was unable to repair mine, i know this doesnt answer the question but at least will give you a bit more info.