Upgrade to Raspberry 4

pi-top [3]
#1

I have Raspberry Laptop Pi-Top

Can I upgrade to some board like Raspberry 4 or Orange RK ?

#2
#3

Wow! I found instruction and tests upgrade to RockChip 64
I order this board already. Will try soon

#4

In case you want to use a RPi CM4 (or others like Pine64 SOQUARTZ and Rock CM3), rather than RPi4B+, without having to physically modify your pi-top [3], you could use this:

https://www.waveshare.com/product/cm4-to-pi3-adapter.htm?___SID=U