Z2 Screen screen problems

[brownystar]

hi everyone i have the z2 and on thursday the screen just went very dim and dark. the brightness is set to full but still does not inprove the screen from being nearly black. i contacted sony who said it was a software problem and to use the pc companion to install the firmware again which i did and still the same. so looks like it isnt a software problem any other suggestions to fix this. the phone was purchased in may 2014 thanks for any help in this matter. have attached a picture. belive it of not the screen is actully on at full brightness lol but looks off

[christopherjz]

Proof of purchase should not be needed, the warranty information is all held on sony systems. They can search all the warranty information from your IMEI. I know this because I was shown the system they use at a Sony Service Centre and also given a print out of my warranty information without showing them ANY proof of purchase. The only reason I could think for Sony to ask for proof of purchase is to try and get out of honouring the warranty.

[malt1977]

Interesting. Although I know they would have the handset info, the proof of purchase also lets them know that the handset isn't stolen. For instance, Apple always request to see POP despite having IMEI registered on their system.