Reset NVRAM and PRAM with broken key.

Depending on the age & vintage of 'MacBook/Pro 15-inch' model; key-face

& two other parts beneath, may be replaced without takeapart of Top Case.

{..Or see if you can find a USB keyboard to use instead of internal one..}

The home page with general instructions guide, has portable Mac keys

and those have details you could use, and learn how to fix the keyboard.

• Apple MacBook Pro Key Replacement | Keyboard Keys | Keypad Keys

https://www.replacementlaptopkeys.com/macbook-pro/

You could replace individual keys, for small fraction of full keyboard price.

May be dusty bits are in between the three parts?

Free Video Installation Guide - Apple MacBook Key Installation

https://www.replacementlaptopkeys.com/laptop-key-installation-guide/

So these are available, once you know what you need, and have key #s

as these are listed by sets (by Key face) you can order any letter needed.

Need Help Identifying? check out the:

Definitive Guide to Apple MacBook Pro Keyboard Key and Hinge Clips

Take care & good luck!🌤🐢

keenonMac10 wrote:

How do I reset the NVRAM and PRAM with a broken R key?

external keyboard (?)

simple way to reset both the SMC and NVRAM using Terminal.app

start up in Single-User Recovery mode using Command S R then enter the command line, copy and paste—

pmset -a restoredefaults && nvram -c

get your keyboard fixed, see if you qualify:

https://support.apple.com/keyboard-service-program-for-mac-notebooks