TLDR sorry, but delete all your scraped images/data. this was a huge problem for me for quite a while since i have tons of systems on mine. hopefully that helps. the ONLY solution that works for me anyways.
i was able to pair mine the first time and it worked all night. today I boot up the pi and PS3 controller no longer connecting. says BT is down. did you find a way to fix this? i’ve only charged my PS3 controller (real ps3 controller) to a computer to charge. Now i just get blinking LEDs