How to debug?

Firstly, I need to figure out what happend if edk2 crashed from booting.

•  Using Framebuffer Serial 
•  Using UART 
•  Using a persistent memory 

Using framebuffer output is seemly impossiable seens qualcomm is using a splash screen instead of efiframebuffer in msm8996. Which semms to be different from msm8998 and after.

Using UART is Diffcult for qualcomm device or hace qrd : Qualcomm Referenced Design

So, we are using pstore (Ramoops) for redump error and serial log.