Chosen Solution
My MacBook Air has some weird behaviors. It requires PRAM reset when I want to turn it on after it was shut down. After the reset, everything runs without any problems until I shut it down again. Sometimes when I left it in the sleep mode, it suddenly will make the booting-up sound and when I opened it, the screen is not functioning but the keyboard backlight is still on. I’m not sure the root of this problems. This MacBook is free from water damage. Does anyone have idea, what is happening with my system? Is the SSD damaged or other parts? Update (10/24/2018) @danj Here’s the screenshots of the diagnostic’s result and CoconutBattery.
Update (10/26/2018) I have tried to enter the safe mode again, but it failed. It keeps loading forever. Even after I made the PRAM reset. Sometimes it started to lag just because I opened some websites that contain videos. I have 4 GB of RAM on this macbook. @danj here’s my new update
Have you tried a SMC reset yet? I would try a SMC reset if the answer to that question is a no. How to reset the SMC, PRAM and NVRAM on a Mac Laptop
Lets see why your systems SMC needs to be constantly reset. Reset it again but this time lets go into diagnostics when you restart the system press and hold the D key. Did any errors pop? I would also install CoconutBattery and paste a snapshot of the apps main window so we can see how the battery is doing as well. Update (10/25/2018) Lets try getting the system into Safe Mode again. Just like you entered into diagnostics you’ll need to press and hold the Shift key. Are you able to get there this time? Reference: Mac startup key combinations You may need to check the drive using Disk Utility as well as check it for malware & viruses. While you can boot up in the recovery partition or Internet recovery to gain access to Disk Utility, I find connecting a bootable external drive which also has a good antivirus & malware software to scrub the drive. I would also make sure the drive is not too full. This is a common issue in the Air’s as the drive it has tends to be small (128, 256, or 512 GB flash storage). These drives should have 1/3 left unused so the system has enough work space.
