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Let me know if this is the wrong flair or sub for this please I wasn't sure where to ask. 

Hi, I’m trying to troubleshoot my Dynabook Satellite Pro C50-H and I’m hoping someone can help.

The laptop is from 2021 at least that's what it says on the battery I got it in 2022 and was originally supplied through DSA while I was at university. It was working normally before this happened.

 I left it running over night with games and a couple tabs open like I'd normally do but didn't realise I disconnected the charger when it died I was moving around a lot and putting things away due to lack of space and my cat and forgot what safe place I put it in. 

The original charger:

\- Input: 100-240V \~ 1.5A 50/60Hz

\- Output: 19.0V 2.1A (39.9W)

Before I stopped using it, the charger brick used to make a buzzing noise not loud or anything but didn't sound quite right so I left it worrying it will damage the laptop untill I got a replacement 

I bought a replacement charger specifically listed for the Dynabook Satellite Pro C50-H:

\- Input: 100-240V \~ 1.5A 50/60Hz

\- Output: 19V 3.42A (65W)

When I first tried charging with the old charger before buying the replacement, I got:

\- Blue flashing light on the laptop

\- Purple flashing light near the charging port

After about an hour, those stopped.

With the new charger:

\- At first there were no lights.

\- After leaving it plugged in for a while, the laptop felt slightly warm underneath, similar to when it used to be running but won't turn on 

\- Still no charging LED, no power LED, no fan noise, and it won’t turn on.

It's been another 6 months because my ADHD ass forgot I had it till I needed something from it, and it's completely silent no lights no nothing the charger brick doesn't make any noise either.

My questions:

1. Could the battery be so deeply discharged that it needs a long time before showing any signs of life?

2. Could the battery be preventing the laptop from powering on?

3. Could the old charger being only 40W have caused any issues, or is that unrelated? 

I know probably best bet is to take it to get professionally diagnosed but last time I've done that with a phone in a reputable shop I got charged £150 quid for a supposed battery replacement, turns out all that's been done is charging port replaced so I'm worried about going somewhere without knowing the ins and outs. 

I already tried the AC only test but I don't know if this laptop can even run in AC only so I added photos of the inside, I don't know if it being dead that long also means the AC test isn't reliable. I added photos of the charger bricks incase I got anything muddled as well as like all the numbers to the laptop incase that's important, I know more about the pull out battery laptops as those are the ones I grew up with. 

Any advice would be really appreciated so thank you in advance 

Laptop refuses to charge or react despite new charger, worked perfectly fine prior but left it with a dead battery for about a year now