When you’re facing issues with a faulty hard drive, you might come across a myriad of forum posts and videos suggesting ‘stuck heads’ are the culprit. Before you grab your toolkit, ask this question: are the platters inside my drive spinning?
If your hard drive platters are still spinning, your hard drive does not have stuck heads.
Let me repeat…
As long as the platters in your hard drive are still rotating, it means that the read/write heads aren’t jammed.
Still don’t understand?
The spinning of your hard drive’s platters indicates that the read-write heads have not seized.
This simple fact is often overlooked due to misinformation online.
Understanding “Stuck Heads” on a Hard Drive
The spinning of platters is a clear sign that the read/write heads, which hover a hair’s breadth away from the platters, are not ‘stuck.’ If the heads were stuck on the platters, the platters could not spin. If your platters are spinning, DO NOT OPEN THE COVER. If you aren’t sure if your drive’s platters are spinning or not, DO NOT OPEN THE COVER because you definitely do not have the experience required to safely “free” them.
And, if the platters aren’t spinning…
The Risks of DIY “Repairs” for Stuck Heads
Opening the cover of your hard drive out of suspicion that the heads are stuck can lead to more harm than good. Here’s why:
- Contamination: Hard drives are sealed to protect against airborne particles. Even the smallest speck of dust can cause irreparable damage to platters when the drive is powered up.
- Damage: The act of opening a drive can result in accidental scraping of the platters, or other contamination like finger prints, turning a potentially simple fix into a major data recovery challenge.
- Warranty Voiding: This self-attempted procedure will certainly void any warranty that could have provided a professional fix or replacement.
Recovering data from a hard drive is a delicate process that requires specialized tools, “unsticking” experience, and a cleanroom environment. Without these, you’re not fixing your hard drive; you’re likely bidding farewell to your data.
And don’t forget: platters may not spin for a variety of reasons:
- Bad PCB
- Stuck spindle
- Bad motor
- PUIS (power up in standby, enabled)
OPENING THE COVER IS NEVER THE RIGHT APPROACH FOR A DIY RECOVERY! The only DIY technique you can try if the platters are not spinning is a PCB swap. Even then, you’ll need to know how to move the ROM chip from the bad PCB to a compatible donor PCB (and if you break the ROM chip, you’re data may become permanently unrecoverable).
Unless you are 100% sure the heads are stuck, you have a clean room, you have the appropriate tools to “unstick” the heads for your model drive, and you have experience unsticking stuck heads for your model hard drive, DO NOT TRY IT!