My Telly Tablet was perfectly fine yesterday. When i used it tonight first time it booted up then went blank. Rebooted it, got onto Netflix (working fine) then after a few minutes it went blank again. Since then i have rebooted a few times, it either starts to boot up then goes blank or will boot up, displays all the apps as normal but when i click on an app it makes a "pfffft" sound and goes blank. I have tried to go into settings to do a factory reset but as soon as i click on settings same thing, pffft! What do I do? Dont think is a battery issue as is fully charged. No error codes etc. Thankyou in advance.