7 Day Apple Repairs in London provided by Mac-Repair-London.com

• Mac Repair London
• Apple Support London
• iMac Repair London
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Mac Repair London offer a first point of call when something goes wrong with your Apple computer...

Apple Macs are very robust machines and system failures on Mac's have alway been fairly rare. However from time to time a problem can arise in the boot process causing start-up to be unsuccessful. These issues can be caused by various issues and may be related to the power supply, battery, hard drive, OS corruption, user account or in a worst case scenario the logic board. Finding the root cause to a problem is all down to accurate isolating and finding the solution. A good place to start is to detach all externally connected devices (hard drives, printers, USB, Firewire, etc.) as this removes possible causes and helps to narrow down the possibilities.

Here are a few excellent questions we've put together to help confirm:

Does your Mac turn on?
If your Apple desktop or laptop won’t power up at all in other words no lights, no sound and no screen image, the possible suspects are often a a dead battery or a bad AC adapter in the case of laptops, a blown fuse or power cable failure on desktops, a dead power supply, a failed logic board. Failed power supplies are at times noted by a popping sound.  This can be put down to a component on the board such as a capacitor which has basically exploded.  Both the Intel and G5 versions of the iMac are prone to suffering with bad power supplies. PSU's, as their also known, can fail when you least expect. Unfortunately power supply's from Intel iMac are still fairly expensive to replace and Mac-Repair-London.com are able to offer low-cost repair solutions for dead or faulty Power Supply's in either the iMac Intel or G5 models. Call us on 07010 033 622 to get yours repaired at an affordable price.

Portable Macs such as the MacBook, Macbook Air and MacBook Pro models have an additional power supply in the battery. A faulty battery might hamper your Apple laptop from booting, or the battery may keep your system running after a freeze or hang, rendering it unable to reboot at all.  For older Apple laptops that have removable batteries its worth removing the battery when troubleshooting. All Macs also have another battery fitted internally which is often referred to as the PRAM or NV-RAM battery. This is responsible for storing settings such as network configuration, startup devices, screen brightness and volume level. The PRAM or NV-RAM battery also store the date and time so if you find your clock resets each time you unplug your Mac it's very likely that the cause is a dead PRAM battery.  A faulty PRAM battery can also prevent your Mac from booting altogether and in some cases cause unstable behaviour. in this case you could try to connect the power cable or AC adaptor and allow up to 1 hour for the battery to charge up enough and allow booting.

Can you hear any strange noises?
Putting your 'shell-like' to your Mac might seem a little conceptual to most however it's a very good way to gain a useful indication of startup problems. For instance, if your Apple computer makes no noise at all when the power button is pressed once again it might be evidence of a PSU or logic board failure. Unusual sounds such as a high-pitched whine, repeated clicks or metallic ticking is known to indicate a hard drive on it's way out.  It's at that point you would be wise to enlist a professional Apple technician to inspect your Apple Mac as ignoring this or attempting to continue using a failing hard drive can cause further damage and render your important files lost and very difficult to successfully recover. Mac-Repair-London.com offer an expert Apple Mac Data Recovery service should you require help with a faulty hard drive. The service includes a free inspection and the success rate is very high as their Apple Certified Mac Technicians really understand how a Mac is different from a PC and have skills and techniques that are not found elsewhere. Call 07010 033 622 anytime for exceptional help and advice for all problems or issues related to your Apple computer.

Startup Beeps and Blinking LED
One of the most easily recognisable things about your Mac is its Startup Chime. Although you are very familiar with it identifying that your Mac is starting up most Mac users are unaware that it also means your Apple computer has passed a startup test otherwise known as a POST test ("POWER ON SELF TEST"). Therefore if you hear a different beep or series of beeps expect that to be symptomatic of a hardware failure usually concerning RAM, VIDEO or at worst a critical problem with the LOGIC BOARD. Call Mac-Repair-London.com if you encounter odd beeps at startup on your Mac mini, iMac, Mac Pro, MacBook, MacBook Air or MacBook Pro.

No-Entry Sign or Flashing Question Mark
A flashing question mark ("?") or a no-entry sign indicates that your Apple computer can’t find a startup device. If you are lucky it merely indicates a corrupted Operating System at worst you might be looking at a failed (or failing) hard disk drive. Launch Apple Disk Utility from your Mac OSX DVD and try to repair the disk. If the drive is successfully repaired however the Mac still won’t boot, it's worth attempting to reinstall Mac OSX using the Archive and Install facility during the installation process. After reinstallation and a restart the Apple Logo should reappear meaning your Mac is successful in finding a valid system, and Mac OS X begins loading.

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