Start with these three steps
Exclude unsafe conditions
Stop if there was a spill, impact, damaged cable, burning smell or unusual storage noise. Do not continue power checks on a physically damaged iMac.
Check the external power path
For an otherwise undamaged iMac, check the cable, outlet and compatible power adapter where fitted. Record whether the machine makes any sound or displays anything.
Find independent copies
Use another device to check cloud data and existing backups. Do not reconnect a failing backup drive simply to see whether the iMac notices it.
Use the desktop power checks once
Apple’s procedure starts with secure, undamaged power connections and a working outlet. It also suggests removing accessories and holding the power button for about ten seconds before pressing it normally. These checks are appropriate only when there is no damage or storage warning that calls for stopping.
An iMac is not a laptop waiting for a depleted battery to charge. Check the actual power equipment for its model. Keep external archive disks labelled when unplugging accessories so they are not confused with a recovery destination later.
Sources: [1] Apple Support [2] Apple Support
A blank display does not settle the diagnosis
If a question-mark folder, Apple logo or other screen appears, the iMac has powered on and has a startup issue. If it seems active but the display stays blank, record those observations rather than repeatedly restarting it.
Apple has a separate blank-screen workflow. Explain whether the screen ever lit, whether an image appeared briefly and whether the issue followed an update or power interruption. A technician can use that history to distinguish the next diagnostic path without assuming the storage must be erased.
Sources: [3] Apple Support [4] Apple Support
Identify the exact iMac before accepting a recovery promise
An older Intel iMac with conventional storage can need a different assessment from an Apple silicon model. Intel alone is not a sufficient description: Apple lists the T2 chip in the 27-inch Retina 5K iMac from 2020 and in iMac Pro.
Find the model from existing purchase records or Apple’s identification guidance. Tell the assessor about previous SSD upgrades or drive replacement. The original sales specification may not describe the storage now inside a computer that has been repaired.
Sources: [5] Apple Support [6] Apple Support
Ask for file access before machine replacement
List the folders that justify recovery and the newest backup you can actually open. Ask whether the proposed work aims to make the original storage readable, and what would happen if normal operation cannot be restored.
Keep the original machine and removed parts until this is resolved. Apple warns that catastrophic failure can defeat recovery on an iMac Pro. For a local option, Data Recovery Lab NZ publishes Mac recovery services; request confirmation for the specific iMac rather than treating a generic service listing as a recovery guarantee.
A realistic view of recovery
- No response to the power button does not diagnose the storage device or determine recoverability.
- Some original-hardware failures prevent extraction even when a password or backup history is known.
Your questions, answered
Should I reset the SMC?
Will taking out the SSD bypass the power fault?
Is a power repair enough?
Need help with the original iMac?
Describe the model, what happened and which data matters. Data Recovery Lab NZ is an external specialist; ask it to confirm the assessment route for your exact device.
Sources & further reading
Primary and specialist guidance checked 27 October 2026. Features and instructions depend on the model and operating system.