Why won't these PSP's turn on?

In this video I attempt to fix two Sony Playstation Portable (PSP) units that won't charge and won't power on. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Affiliate Links (I get a small commission if you buy from these links, thanks for helping me out!): Storefront: ‣ https://www.amazon.com/shop/fantastic... Tools I use in this video (or related): ‣ Screwdriver Kit - https://amzn.to/3OWja76 ‣ Soldering Iron - https://amzn.to/3IoqgyQ ‣ Soldering Iron (Budget Option) - https://amzn.to/3vI1O6c ‣ Tweezers - https://amzn.to/3c4pURU ‣ Solder Wire - https://amzn.to/3ayhmT1 ‣ Flux Pen - https://amzn.to/3uE8lym ‣ Solder Wick - https://amzn.to/3c6rTVK ‣ Plastic Pry Tools (spudgers): https://amzn.to/3PPHeJa ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ #fantasticquack #quackfix #retrorepair #videogames