5 warning signs of Mac problems and how to deal with them
Optimize content：Sometimes problems occur in macOS or computer components，as time goes by，they may gradually worsen，or suddenly。 Sometimes before these problems become major issues，Your Mac will send out warning signs 。You need to pay close attention to the operation of the system。We'll show you some common warning signs ，and discuss how to solve these problems in the following sections。 1.Mac won't turn on when you press the power button on your Mac，nothing happened。No power light，no sound，And the screen is completely black。 don't panic，Just try the following steps to diagnose the problem： • Check power connection，Make sure both ends are secure。Next，Check the wires for damage，Then try using a different charger or outlet。 • Check the video output cable connection to the external monitor (if applicable)。Also try increasing the brightness of your monitor，to ensure that its brightness is not too low。 • There may be something wrong with your accessory。Unplug all peripherals except keyboard and mouse，Then try to start。Plug in peripherals after reboot，see if everything is normal。 • Restart power。On a modern MacBook，Press and hold the power button for 10 seconds。If your Mac is running，It will cut power and force it to reboot。On a desktop Mac，Unplug the cable，Then wait ten seconds。Then plug in and reboot。 2.Mac gray screen during startup after turning on the power of Mac，A series of startup events will occur，until the login screen or desktop appears。But if the startup process gets stuck，no matter how long you wait，will only see a solid gray screen or a screen with symbols。 based on what you see，Follow the instructions below。 Normal gray screen If there is only a simple gray screen at startup，Please do the following： • Peripheral failure is the main cause of gray screen problem。therefore，You should remove all wired accessories，Then hold down the power button to shut down your Mac。Plug in a peripheral after every reboot to find the culprit。 • Try booting in safe mode。If your Mac completes the startup process here，Please reboot in normal mode and verify that the boot drive is functioning properly。 • If safe mode startup fails or gets stuck，then reset the NVRAM and SMC settings as previously described。 • RAM with incorrect specifications can also cause the screen to turn gray。Remove any RAM you recently added，then restart。 • Hold down Cmd on startup + R key，Restart your Mac in recovery mode。Then，Repair your boot drive using Disk Repair Utility。 gray screen，No disk icon If there is a folder with a flashing question mark on the gray screen，It means that your Mac cannot find a valid boot volume.。but，When it displays the "Do Not Enter" symbol，Indicates that your macOS installation is corrupted。 To resolve this issue： • Sometimes your Mac forgets the boot volume，and temporarily display a flashing question mark。To resolve this issue，Go to the Startup Disk pane in System Preferences，Then reselect the boot volume。 • Start your Mac in recovery mode。In the Apple menu，Check if you can see the boot volume。if not，There is probably a problem with the boot disk。Run a disk repair utility to resolve this issue。 •...