The DVR became the mandatory attribute of the modern driver. Such devices as a storage of recorded rollers use memory cards of various formats and standards. Sometimes it happens that the video recorder cannot recognize the card. Today we will tell why this happens and how to cope with it.
Causes of problems with reading memory cards
The main causes of this problem there are several:- Random unit failure in the registrar;
- Software problems with memory card (problems with the file system, the presence of viruses or recording protection);
- non-compliance of the characteristics of the card and slots;
- Physical defects.
Let's look at them in order.
If there is no possibility to format the SD card by means of the registrar, at your service items below.
Read more:
Methods for formatting memory cards
Not formatted memory card
Cause 3: Viral infection
This can occur, for example, when connecting a map to an infected PC: a computer virus due to software differences is unable to harm the recorder, but to output the drive is completely. Methods to combat this victim, described in the manual below, are suitable for solving viral problems on memory cards.
Read more: Get rid of viruses on flash drive
Cause 4: Protection from Rewaging
Often the SD card is protected from overwriting, including due to failure. On our site there are already instructions on how to eliminate this problem, so we will not stop in detail on it.Lesson: how to remove the protection from recording from the memory card
Reason 5: hardware incompatibility of the card and registrar
In the article about choosing a memory card for the smartphone, we touched the concepts of "standard" and "speed class" cards. DVRs, like smartphones, may also not support some of these parameters. For example, inexpensive devices often do not recognize the SDXC Class 6 cards 6 and above, so carefully study the characteristics of your registrar and the SD card that you are going to use.
Some DVRs as storage devices use full-format SD cards or minisd, which are more expensive, and they are harder to find on sale. Users find a way out, buying a microSD card and a corresponding adapter. With some registrar models, such a focus does not pass: for full-fledged work, they need a card supported format, so the microsphere is not recognized even with the adapter. In addition, this adapter may also be defective, so it makes sense to try to replace it.
Cause 6: Physical Defects
These include contamination of contacts or hardware damage to the card and / or the corresponding video recorder connector. Get rid of the contamination of the CD card simply - carefully inspect the contacts, and if they are observed traces of dirt, dust or corrosion, remove them with a swath moistened with alcohol. The slot in the recorder's case is also desirable to wipe or blow. Cut the breakdown of both the cards and the connector is more difficult - in most cases it is not necessary without the help of a specialist.Conclusion
We reviewed the main reasons for which the DVR may not recognize the memory card. We hope this article was useful for you and helped eliminate the problem.