I seem to have killed my circuit sword lite.

All was well with testing until one power up. I didn’t notice the LCD ribbon cable had pulled out slightly, I did notice the acrid smell of a popped component though! On investigation, It’s either D1 or U5 just underneath the BL_OK LED.
I’m happy to replace it, but what is it and what rating? Should it have popped so easily?
I’m thinking it’s D1, diode 1?