Applenvramreset

Pressandreleasethepowerbutton,thenimmediatelypressandholdthefollowingkeys:option,command,P,andR.Holdthosefourkeys ...,4個月前—Pressthepowerbuttontolaunchit,andthenpressandsimultaneouslyholdtheCommand+option+P+R.NVRAMResetKeys.Step3.Untilyou ...,5年前—FollowtheseinstructionsforresettingthePRAM/NVRAM:ResetNVRAMorPRAMonyourMac-AppleSupport.Followtheseinstructionsfor ...,4個月前—HowtoResetPRAMorNV...

參考資訊如下
How to reset NVRAM on a Mac

Press and release the power button, then immediately press and hold the following keys: option, command, P, and R. Hold those four keys ...

How to Reset NVRAMPRAM on Your MacBook ProAir ...

4 個月前 — Press the power button to launch it, and then press and simultaneously hold the Command + option + P + R. NVRAM Reset Keys. Step 3. Until you ...

How to Reset PRAM and SMC

5 年前 — Follow these instructions for resetting the PRAM/NVRAM: Reset NVRAM or PRAM on your Mac - Apple Support. Follow these instructions for ...

How to Reset PRAM or NVRAM

4 個月前 — How to Reset PRAM or NVRAM · Power off your Mac. · Press your Mac's power button and then hold these four keys at the same time: ⌘ + option + P + ...

How to reset the NVRAM, PRAM, and SMC on any Mac

5 天前 — On the built-in keyboard, press and hold the Shift, Option, and Control keys on the left side and press the power button and hold all of these ...

How to Reset Your Mac's PRAM, NVRAM, or SMC

Mac startup key combinations

4 個月前 — Option-Command-P-R: Reset NVRAM or PRAM. Shift (⇧): Start up in safe mode. D: Start up to the Apple Diagnostics utility. Or use Option-D to ...

Mac 萬用自救兩招：清NVRAM（PRAM）與重置SMC

4 年前 — △把Mac 關機，然後把電源線拔下來，等15 秒，接著再將電源線接回去，等待5 秒鐘後，才按下電源鍵來開機。

將Mac 賣掉、送人、換購或回收以前的注意事項

10 個月前 — 重置NVRAM 之後，Mac 會再次開機進入設定輔助程式。若要讓Mac 保留在拆封時的初始狀態，請按Command-Q 關機，而不要繼續設定系統。