Many flash drives today bundle their internal components into what looks like a single inscrutable item. There is another kind of flash memory device, known as a monolithic USB thumb drive. Our data recovery computer scientists must use custom-designed software to emulate the controller chip and piece the data together correctly. The raw data from a NAND chip can be read with any device programmer.īut these contents are absolutely useless to anyone at this point. Electrical surge data recovery for flash memory devices involves carefully removing the NAND chips and extracting their contents. If the PCB fails, this control chip fails with it. A closer look at the spiderwebbing process in advanced SD card recovery situations Data pulled from the chips is assembled into something recognizable by the control chip on the PCB. The data within these chips looks nothing like the data stored on a hard drive’s platters. Solid state drives will often have several NAND chips. Thumb drives typically have one NAND chip to store data. Solid state drives, USB thumb drives and SD cards have the control board and NAND flash memory chips divided into discrete components. Gillware Data Recovery staffs skilled electrical engineers to handle these electrical surge data recovery situations. Replacing a hard drive’s shorted control board involves removing the ROM chip from one board and soldering it onto a compatible board. Each hard drive has its own unique calibration parameters stored on its ROM chip. Nowadays, while two PCBs may look identical, they are quite different. A long time ago, hard drives didn’t need all these calibrations, and any two PCBs from the same model of hard drive were identical.īut hard drives have become much more sophisticated since then. ![]() On a spinning-platter hard drive, the PCB contains unique hard drive calibrations. Replacing a failed control board is not the simple affair it once was. Electrical surge data recovery methods depend heavily on the nature of the device. But the underlying technological differences between hard disk drives and flash memory devices are huge. When you plug an external hard drive, solid state drive, or USB flash drive into your PC, they all look the same to you. Power Outage/Surge Data Recovery for HDDs and SSDs In some rare cases, a severely shorted PCB can cause other devices hooked up to the drive to short out as well, such as your PC’s power supply unit or motherboard. Or the hard drive spins up, clicks, and spins down. When this happens, a flash memory device will be completely unresponsive.Ī traditional hard drive can exhibit a variety of symptoms. A power surge of even just 3 nanoseconds is enough to short a control board. PCBs are especially vulnerable to power surges. For solid-state devices, the PCB contains a controller that takes the raw data from the NAND chip and parses it into something recognizable by your computer. ![]() However, in some microSD cards and flash drives, the control board and chip have been integrated into what appears to be a single package.įor hard drives, the PCB contains drive-unique calibrations. These two components are usually kept discrete. In USB flash drives, SD cards, and solid-state drives, the PCB pulls data from the NAND flash memory chips. In a traditional spinning-platter hard drive, the PCB allows electricity to power the spindle motor that sets the drive’s platters and heads in motion. Power and interface commands go into the device. The control board acts as an intermediary between the data on your device and your computer. Every data storage device has a control board. “Destroy” might be a strong word to use, but a power surge can certainly cause your hard drive to stop working. “Grey Screen of Death” Due to Power Outage.Power Outage Causes Western Digital Drive to Fail. ![]()
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