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Hi, I lost the right arrow key. Now I can’t use the Mac startup key combinations like recovery (CMD + R). How to solve this issue ? Apple helps me to replace single key? or Arrow Keys alone ? Laptop Details : MacBook Air (Retina, 13-inch, 2020) 1.1 GHz Dual-Core Intel Core i3 8 GB 3733 MHz LPDDR4X

While loosing the arrow key does need to be fixed in its self it shouldn’t stop you with the startup keys. This sounds like a deeper issue here, did you leave the T2 secure boot feature enabled? About Startup Security Utility You will need to disable it and/or you have still deeper issues with the keyboard which will need to replace it MacBook Air 13" (A2179, Early 2020) Upper Case with Keyboard Reference: About macOS Recovery on Intel-based Mac computers