It looks like there are multiple versions of e5570 that have been released. You'd have to determine which year it's from, and how easy it is to repair (either find a repair manual or YouTube disassembly/repair video). You also have to determine what panel the particular year model uses, and if it's available through a place like *** There might be two options here: a) Either the panel itself, which will require your friend to disassemble the entire screen cover, and replace it, or b) Someone might be selling a fully assembled cover with panel together, which might require less work installing.
If that doesn't work out, your friend can also buy a stand along monitor, and attach it through VGA or HDMI port, but at that point the laptop won't be as portable.
This post was edited by OuchAreYouOk on Sep 9 2021 11:23am