Lucas do you have access to a multi meter ? If so check the power output of the power adapter . Make sure it matches the output indicated on the power adapter. If they don't match then replace the power adapter. Next check the power port on the computer to see if there's any movement . Check this port for continuity . the port may be broken from its perch . In researching your problem I came across this video which may be some help.
If it gives no Joy you may need to dig deeper to examine the solder joint on the mother board . which will involve opening the laptop. Once you've tried the first few ideas we can help with more info if you need to go further into the fix. Hope this helps
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