I am not 100% sure about this but the phones display cable might have gone loose when the phone got cracked (assuming it was an impact or drop), if you’re ok with a cracked screen maybe take it apart with one of the guides on iFixit and just plug it back in or get a new display assembly and do the same.
Ok so these are the 2 most obvious things that could have happened. #1: The screen is completely dead and will need replacing. #2: The screen ribbon cable may have gotten knocked out of place and is not making contact. Both of these can be fixed by opening up the phone and reseating the ribbon cable OR replacing the screen. (I’m not too familiar with the S6 *ACTIVE* so sorry if I am mistaken)
Are you using quality batteries? I would recommend iFixits batteries. Cheaper batteries can just straight up quit after a while, now a couple days sounds insane for any battery, but that is all I can think of. Also, this may be common sense, but make sure the battery is not bent, damaged, or under extreme heat.
Because iFixit has no guide, I would recomend looking up a tutorial on YouTube, and ordering keyboard off amazon. Links Here: Keyboard: https://www.amazon.com/Lenovo-Thinkpad-X131e-Chromebook-keyboard/dp/B00HCOJLES Tutorial: https://www.youtube.com/watch?v=AS5SeNM3...
So I'm assuming the mac is not recognizing the battery, there could be alot of things wrong, lets try basic troubleshooting first, does the mag safe charger indicate the battery is there? It would be an amber light on the charger if so, but a green if not. Also, can you use the mac without the charger even though there is no battery recognized? If you can, it is probably a software issue, if not, maybe a hardware issue. If I can get these answers, I can probably find a solution.
The tactile switch might have worn out, I'm not super knowledgeable when it comes to GBA SP's but considering what your saying, I would recommend soldering in a new switch.
Well, if you are looking for someone else to replace it, i don't know. But it would probably cost around 20-25 dollars to fix if you buy a fix kit off amazon, iFixit doesn't have parts :.(.
I don’t know why they yellow like they do, but the famicom YELLOWS.