hi, im using my mi4 since almost 2 years. never used any protection for it(cover or anything else) and now i recognize my rear camera lens is quite scratched, and this is really noticeable when it comes to shoot a photo or record a video. i dont want to return it as i got only this phone by now and the seller said it could take up to 1 month, and its too much time. just asking, anyone has the same prob? is there a way to recover the lens?(seen some videos about the htc m8 lens getting repaired, wondering if will work on mi4 too), or a reliable eu store that sells a replacement part for that?