I have a 1st generation Time Capsule that always used to work fine, but recently it shuts down almost only seconds after I turn it on.
How can I solve this ?
Most of the time, this problem can be solved rather easily.
The cause could be a broken HardDrive inside your Time Capsule (if that’s the case, go here to see instructions on how to replace the HD), but most of the time this specific problem turns out to be an overheated (and therefore broken) power unit.
Even though this type of Time Capsule is marked obsolete by Apple, it will still function in your current WiFi network and can still be configured using the current AirPort Utility app version 6 and newer.
The main problem is probably not going to be to replace the power unit, but finding a new power unit. You might find one on Amazon, but since it will probably be a secondhand item, your will probably have more luck searching for an “A1254 power unit” on eBay, AliExpress or Google Shopping
When you have found a new (secondhand) A1254 power unit, you can build it into your A1254 “1st generation” Time Capsule this way :
put the Time Capsule upside-down and use a hairdryer to heat up the rubber base plate and loosen it’s glue (if you don’t do this, you will probably rupture the base plate when you try to take it off)
then follow the iFixit manual for replacing the power unit and make sure not to skip the important comment at Step 2 : “The two screws in the top center of this picture should not be removed at this time. They are locating pins on the hard drive.”
after taking out the broken power unit and putting in the new (secondhand) power unit in, put your Time Capsule back together doing the iFixit steps in reverse order
after plugging the Time Capsule into the power, you can reinstall it into your WiFi network using the AirPort Utility app on your Mac (or on your iPhone/iPad)
My 1st generation Time Capsule always used to work fine, but now the internal HardDisk is broken.
Can I replace the HardDisk easily ?
Yes you can.
In the ‘old’ flat Time Capsule (like the A1254 “1st generation” Time Capsule), the HardDrive is rather easy to replace. And even though Apple has marked this TimeCapsule ‘obsolete’ it is still able to preform properly and it can be maintained using the current AirPort Utility version 6 and newer.
To do so, follow these steps :
get yourself a new HardDisk, preferably a low-energy HD like the Western Digital WD Green 2TB or 3TB (get it on Amazon.com, Amazon.co.uk or Amazon.de) ; these low-energy HDs are especially suited not only because of their low power consumption, but also because of their ability to stay cool during operation since these old TimeCapsules tend to overheat when a regular HD is installed
then, place the TimeCapsule upside-down and warm up the rubber bottom plate with a hairdryer to loosen the glue (if you don’t do this, it is nearly impossible to get the rubber bottom plate of without rupturing it)
then follow the steps as outlined in this manual by iFixit and be sure to read the important note at Step 2 : “The two screws in the top center of this picture should not be removed at this time. They are locating pins on the hard drive.”
then replace the HD and rebuild your TimeCapsule doing the MacFixit steps in revers direction
when done, plug your Time Capsule into the power and access it using the AirPort Utility app on your Mac (or iPhone/iPad)
in the AirPort Utility app, select the TimeCapsule’s icon and click Edit
in the window that opens, go to Disks, then click Erase Disk
when that’s done, your new Time Capsule’s HD is ready for use