![]() ![]() Sometimes the drive will show up and work slow for a little while, but eventually will not show up at all. Symptoms of this issue: Drive powers on, doesn’t click or making beeping sounds, but it not recognized at all by the computer. The scratch can then spread throughout the platter, making the data unrecoverable. Constantly attempting to power on a drive with media damage may result in a tiny scratch. When the heads try to read from the platters and aren’t able to, a firmware issue develops. The heads bump the platters for a moment, cause a light scratch. A very common issue we see with dropped drives is light media damage. – Media damage / damage to the platters / Firmware Corruption. Symptoms of this issue: Drive powers on to a beeping sound. Multiple attempts to power on a drive with stiction may cause the heads to break off and scrap the platters, making the data unrecoverable. ![]() When the heads crash on the platters, they don’t allow the platters to spin and thus cause a beeping sound. When the drive is functioning normally, the platters spin at a very high speed, and the heads hover over them, within nanometer of it, never touching them. Stiction is where the heads move off of the platters where they are supposed to be parked and crash on top of the platters. – The read/write heads may have got stuck on the platters.“Stiction” is one of the most common issues we encounter. Symptoms of this issue: Drive powers on, spins up, but is making clicking sounds. That’s exactly what’s happening when you attempt to power on a drive with damaged read/write heads. Imagine taking a needle or screw and rubbing it against a CD. Data stored on platters are similar to CD’s. – The read/write heads may have got physically damaged and bent. (Attempting to power on a drive with bent read/write heads will cause severe damage to the platters, making the data unrecoverable. Most external hard drives contain internal Desktop- (3,5 inch) or Laptop versions (2,5 inch) of hard drives.Before getting more in depth about how to fix an external hard drive after it was dropped, the first thing to do is STOP trying to power on the drive as this will only cause more damage to the platters making a Professional Data Recovery more challenging if not impossible.ĭropped your External Hard Drive? One of many things could cause it to be inoperable: With this error, there is often a burnt smell, small smoke clouds or scorch marks on the PCB visible. This can result in damages ranging from electronic defects of the casing or USB-Bridge up to severe electronic damages on the containing hard drive. a laptop power supply) is also not uncommon. The attachment of a power supply with higher voltage (e.g. The severity of the damage stands often in relation to the number of times the hard disk was powered on afterwards. Often the hard drive suffers a headcrash, resulting in clicking or ticking noises, bearing damages and surface damages on the ferromagnetic surfaces. External hard drive was droppedĪ fallen or dropped external hard drive is the most common cause for data loss of external hard drives. But in most cases, the actual reason is a physical defect of the external hard drive. If the operating system cannot detect a valid file system, it assumes a necessity to format the hard drive. The prompt to format the hard drive is often the result of a miscommunication between the external hard drive and the operating system. External hard drive needs to be formatted In order to properly diagnose the problem, the hard drive should be inspected in the laboratory. Less commonly, a mechanical defect can be the origin of the problem. ![]() If the external hard drive doesn’t spin any more, it is likely an electronic error of the casing or the hard drive itself. In some cases, using a different USB-port or USB-cable is sufficient in order to gain access again. There are multiple reasons as to why a hard drive is no longer recognized by the computer. External hard drive is not being recognized Causes for data loss from external hard drivesĮxternal hard drive failure can have multiple causes and are mostly congruent with the errors of internal hard drives. Under Linux or a derivative, hard drives are most commonly formatted in one of the UNIX/Linux file systems (e.g. If the hard drive is being used between multiple operating systems, they can be formatted in FAT/exFAT. For example: NTFS for Windows, HFS+ or APFS for MacOS. The file system of external hard drives is generally determined based on the used operating system. Besides the common USB adapter, some external hard drives have additional connection alternatives, like eSATA, FireWire or Thunderbolt. For example external Western Digital 2,5 inch hard drives (Elements, MyPassport). More and more of the latest models (ascending trend) have the Micro-USB adapter integrated into the hard drive’s PCB. Recovery independent of interface and file system ![]()
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