HTC — Issue related to HTC mobile

Address:	New Delhi, Delhi, 110052
Website:	www.htc.com/in

I have a problem in my HTC mobile as i have already repaired it once few days back. I was facing the issue since long. However i visited HTC service centre Hudco palace Ansal plaza Delhi they confirmed they are not able to recognise what is the issue however they tried to resolve the issue and kept my phone for 2 days and since then i am observing the problem is still persist. The issue is that photos getting crash automatically some photos in gallery shows that no thumbnails. Downloading issue also there sometimes. Sometimes problem are there with the apps also as some app suddenly stops working. I would like to bring your attention that my phone warranty is upto 3 september 2016 so i request you kindly do the needful either resolve this issue before warranty or please replace or refund me. As i am not able to keep this phone like this . It is very annoying.