Solved questions in this topic:

• The disappearance of files and folders from the memory card;
  
• Various audio and video players do not see some of the files recorded on the memory card;
  
• Files are not copied and / or deleted from the memory card.

A bit of theory.
FolderLOST.DIR . Why does it fill up?
This folder is created in the case when Android starts File System Check (Analog Windows CHKDSK) and finds lost file chains. These files appear if you pull the memory card at the time when it is recorded. After all, Windows tries to write files using the caching mechanism. When you pull the cable, the contents of the cache does not have time to make an application and the data in the file turns out to be defective. After the device is disabled from the computer, Android starts scanning a map and detects such "broken" files by moving their remnants to the Lost.dir directory.

Useful links:
1. FAQ on devices and Android OS - look in the FAQ for your device, maybe there are described recommended memory cards for a specific model of the device.
2. Look at the topic"Accessories" Your device. It can also be collected useful information on work and non-work cards.
3. Difficult to choose a card? Then look here:Accessories for various devices , as well as a lot of advice was here I want to buy a 32GB microSD card. Advise. , and here: Choosing a flash card

Let's start to practice.


1. Always, before disconnecting the device from the computer, select "Safely Remove", and further, in the device itself "Disconnect USB storage device" (P.S. It may be called differently, depending on the model and firmware of the device).
2. Check the memory card using the applicationScandisk .
3. The problem may lie in the memory card itself. Try formatting it and following the advice above, write files to it.
- How to format:

• Full formatting using the phone: Menu-Settings-Memory-Unplug the memory card (Remove the card) -Clear the card-Connect the SD-card (PS names and paths may vary depending on the phone model);
  
• Formatting using a computer with a choice of different cluster sizes.
  
• Formatting using a special applicationSD Formatter or Hard Disk Low Level Format Tool . The so-called "low-level" formatting.
  

4. Try changing the cache on the memory card using this application:® SD Speed ​​Increase
5. Formatting does not help? Try replacing the memory card with another one.
6. The files you recorded from the computer are visible and not from the device? See if there is a file in the folder where you wrote them..nomedia (hidden file). If there is, delete it.








Post has been editedGridzilla - 14.08.18, 18:54