How to use Esmond Online Diagnostic (EOD) ?
Flashing Question Mark Folder
This is usually cause by “Operating System (OS) not found or Storage drive is faulty. In some rare cases, it could be due to MotherBoard / Logicboard Hardware Problem.
NO AirPort card installed
Usually due to AirPort Card also known as Wifi Card is faulty. In some rare cases, it could be due to MotherBoard / Logicboard Hardware Problem.
Service Battery / Replace Now / Replace Soon
This error means it would be ideal to have your battery replaced. Common symptoms include battery draining fast, battery not charging, requires external power to turn on your device.
Stuck at Loading Bar
This error is usually cause by improper update, a faulty storage drive or a corrupted Operating System
Able to hear Chime sound but No Displa
Most likely your Display Screen is faulty. In some rare cases, it could be due to MotherBoard / Logicboard Hardware Problem.
Over Heats / Fan running loudly
Internal Cooling fan might faulty, Thermal Paste (Cooling Paste) is dried up, or in some rare cases, it could be due to MotherBoard / Logicboard Hardware Problem.
Your startup disk is almost full (Other)
“Other”takes up alot of storage when your mac is almost empty? Usually cause by software bugs or caches. MacOs require at least 5GB of available storage to run.
