Listen, I figured out how to do this at age 10 in 1994 before Google existed. It’s not fucking hard, OP’s guy must have been hammering those square pegs into round holes too. Some people just don’t have any common sense or problem solving capability.

If it jams, force it. If it breaks, it needed to be replaced anyway.

Those connectors are keyed, but only to prevent you from installing them backwards or rotated 90 degrees, and not from doing what you did. The "tombstone" shaped pins will fit in the square holes, but not vise versa.

Offsetting it by 1 pin side to side won't result in the loss of any smoke, because you will observe the wire colors and that all of the pins on the top edge are 12v positive and all the pins on the bottom edge are ground. You got away with what you got away with because you merely delivered insufficient current to the board, but not the wrong voltage or wrong polarity to the wrong place.

Once you can do both, you can bet your ass I will :3

I downloaded probably a handful or two of cars for GTA IV so you BET I'm going to download ALL THE RAM!

Partly because people replace phones more often than computers, (to upgrade, or because the screen breaks, etc) so they stop using the device before the RAM fails. But also the RAM they use in portable devices was made specifically for the device and integrated directly into the mainboard. There's less points of failure and compatibility is never an issue. Since desktop RAM can be replaced and upgraded, it's not as big of a deal if it fails, you can just swap it out with a new stick. Whereas it would brick the whole device if mobile ram fails, so quality standards are much higher.

If your RAM fails then it generally does so quickly, and also if your RAM fails you probably bought some bargain-bin stuff. As a rule of thumb don't buy DIMMs from companies which don't produce their own chips, or are extremely reputable. And with that I don't mean "you have heard of them".

I think they 'wiggled' them out like bending it back and forth.