Whatever software program you use, it will proceed to read the microSD card bytes by bytes, which can take several minutes. Google “file recovery software” and try recommended free software solutions first. You will need to use a computer and recovery software to recover the files. The first thing to do is to shut down the device and take out the microSD card to prevent new data from overwriting exiting files. If you find out that for any reason your microSD card got mistakenly formatted, you can probably recover the videos if you act soon enough. How to recover files after formatting or deleting? In fact, most recovery software should be able to help you recover most videos that have not been overwritten yet. The same happens when erasing a single file: the file does not really go away until it is overwritten. Note how fast the formatting process usually is: that’s because only a few kilobytes of data are erased. In other words, formatting just erases the address tables without overwriting the actual files. Formatting gets rid of all the information relative to where the data (in case of dashcams, the videos) is located on the storage medium. What formatting does is simply rebuild the file structure, or address tables. 
What happens when you format a microSD card? Most devices work the same so it is probably true for your other digital recording devices such as DSLR, mirrorless camera or action camera. Then, when the card is full and it starts to loop, the first recorded files get overwritten one at a time, while the address table keeps updating. As a video recording completes, the address table, which lets your dashcam know where each file starts and ends, gets updated. With your dashcam, video data gets recorded on the microSD card. How most storage media work?Ī lot of people don’t know this but when a storage medium (SD, SSD, microSD, hard disk) gets formatted, most of the time it does not alter the recorded data. Even if your computer tells you the microSD card is empty, you might still recover most of your files. Did your microSD card get mistakenly formatted? Don’t despair just yet, as most of your files are probably still there, somewhere.
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