Hi
I own a lappy repair company in the UK...
We DONT RIP ANYONE OFF...
We charge a fixed charge to diagnose a problem (£27.50 for 1/2 hours labour...even if it takes 4 hours)
We then tell the customer what the problem is and cost to repair, if its worth repairing...
So please do NOT tar every company with the same brush...
And to the OP....YES its a hardware problem and its needs taking to a lappy repair company....advice here wont help...
All the best Brett