TRH Online Diagnostic Tool

For all other probem encounters not stated below, kindly contact us for more information. Customers may visit our service centre directly for an non-obligation diagnostic test.

Problem encounter

The flashing question mark or a circle/slash means your Mac can't find a valid startup disk. This can be an indicaation of a corrupt installation, software of Mac OS X or a failed (or failing) hard drive.

How to solve

A pass through with DiskWarrior utility is highly recommended for any disk-related startup problems. You can also try Apple Disk Utility which can be found under the recovery partiton.




Problem encounter

No AirPort card installed : is usually the cause due to long usage and/or wear and tear.

Wifi cable connected to the logicboard or logicboard wifi chip might also be the cause.

How to solve

Brand new Airport Card replacement usually solve the problem.




Problem encounter

Service Battery : Means your battery is dying, you might have trouble powering up your mac with battery powered only. Battery tends to deplets faster then usual

How to solve

Visit a nearby service centre and have them replace the battery for you, as removing of certain apple macbook internal battery requires special screw drivers.




Problem encounter

Able to power on but No display: Most of the time is due to a faulty Graphic card and/or Display screen.

How to solve

Replacement of a new onboard graphic card or display screen does the job most of the time. Do Not reommend performing repair on your own as you might damage other components. Engage an apple specialist for a full diagnostic test.




Problem encounter

Stuck at apple spinning wheel : Is usually cause by a corrupted mac os and/or a faulty hard drive with bad sectors.

How to solve

Try rebooting your Mac in Safe Mode and run a disk utilities check on your mac osand harddrive. iYou should be able to boot in normally after restarting your mac if all ends well.




Problem encounter

A kernel panic or "Grey Screen of Death" can happen at virtually any point in the boot process and may indicate a corrupt OS, an incompatible kernel extension, or a hardware problem.

How to solve

Try a Safe Boot to disable non-Apple extensions. If that doesn't work, try repatching your software. If you have tried both methods and still fail, visit an apple specialist for a full diagnostic check on your device




Problem encounter

Safari has unexpectedly quit: Third party plugins may sometime cause these problem.

How to solve

If you aren't sure which (if any) third-party plug-ins you have installed, choose Installed Plug-ins from the safari help menu. A window appears showing the versions of each plug-in, as well as other information.




Problem encounter

Over heating : Usaully cause by a faulty processor fan. Otherwise it might be due to a short circuit of the board that causes the overheating

How to solve

Processor Fan replacement is the top choice. But it's always best to get an Apple Specialist to perform a Full diagnostic Test.


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