HP ProBook 650 G2 charging issue (screen not powering on, power led blinking 8 times)

[Thy_boi]

Hello HP community!,

So, one of my family members had damaged the original AC adapter connector while it was connected in the notebook. Pieces of it were in the input of the battery, and the connector was absolutely broken. I did a few half-hearted attempts to fix it, which was digging the pieces out, and using the broken connector, but sparks where flying when I inserted it (and the input kinda looks not what it's supposed to look like). So I ended up with a broken adapter, and a possibly broken laptop (pretty sure there's no warranty, it was a used laptop when we bought it). Then, I found a HP 65W Slim AC adapter in my basement. It had a supported connector with the laptop, and I tried it. It started up, but it stayed at 8% for a while, and then it stopped charging, and then the battery died. I tried to reconnect it, and same results. Then, on the 5th try, it didn't boot up, but it did show some flashing on battery charge LED (4 white flashes, and 4 orange flashes). Then, I forgot about it for a while. Then, I ordered a new adapter (not hp certified). Connects a lot better, but still shows flashing (Travel adapter didn't work unless I held it in the input a certain way). 

Tl;dr: Adapter connector broke from a fall of about 3.5 feet while it was in notebook, digged the pieces out of battery input, and sparks flew when I inserted the broken connector, found a new adapter, worked a for bit, then stopped working (works with other laptops), but now 4 white and orange flashed happen (8 in total), new uncertified adapter shows same results (flashes).

Any idea what I did wrong, and if it is able to be self-fixed?

Battery input photo in spoiler

Spoiler

 

That is the battery input, pretty sure I messed it up