Envy 15 hinge cracked, power supply disconnects

[Bezier]

Hi. The right-hand hinge on my notebook casing  - where the power connection is - came loose some time ago (a well-known issue with Envy, I think). 
Every time I opened the lid, the casing would come apart a few centimetres - and the power supply would always be switching between mains & battery. But now when I tape up the casing tight (no more gap when the lid is opened), there's no more connection to mains being made any more.
Clearly the repeated action of the broken hinge has affected the power connection. Any simple fixes for this? If I need to take it for repairs, would it be a simple job (not costing hundreds)?
Thanks...

[danny-r]

@Bezier

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