Pahami fungsi dari pengaturan ulang NVRAM. Buka menu Apple. Klik Shut Down…. Klik Shut Down ketika diminta. Carilah tombol pengaturan ulang NVRAM. Nyalakan kembali laptop Mac. Tekan dan tahan tombol pengaturan ulang NVRAM. Tetap tahan tombol hingga pemuatan awal Mac selesai. Periksa apakah masalah yang ada berhasil diperbaiki.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
NVRAM—short for "Non-Volatile Random-Access Memory"—stores settings like speaker volume, the default display, and other settings that your Mac typically uses. Resetting the NVRAM can fix problems wherein your MacBook Pro isn't playing sound, the display is flickering or turning itself off, the computer is taking too long to start up, and similar problems. On some Macs, "NVRAM" is replaced with "PRAM" ("Parameter Random-Access Memory"), which is fundamentally similar to NVRAM. Click the Apple log