How to restore internal flash storage after reformatting?
Why is the internal storage no longer visible in Thunar? How can I restore it to its original state?


  I do not know how to adapt these instructions to my model of MID


First of all you need to get adb working (Android Debug Bridge if you want to learn more). Specific information regarding this is available at ADB for Android Developers (ARCHOS Internet Tablet) as linked in the answer you provided.

When you have adb ready, you should be able to run adb shell. This will give you the ability to give commands to adb and we can start accessing the device. I'm quoting the answer you linked here:


  If the connection is OK, it will start a server and after e few seconds show the '$' prompt. this means you are connected to the tablet and have direct access to the linux shell. If you type 'ls' you will see a list of folders that contain the operating system and all supporting files that make your tablet work. Now navigate to the folder containing the Flash file system by typing:


cd ./dev/block/vold



  If you now type 'ls' again you should see three or four folders that have numbered names. One of them is '31:8'. This is the folder that points to the internal flash. Now we can fix our problem by recreating the MS-DOS (FAT32) file system on this partition. Type the following:


mkdosfs -F 32 /dev/block/vold/31:8/



  This will fix the FAT32 filesystem. Now leave the shell by typing 'exit', disconnect the USB and restart your tablet. On my system this made internal storage re-appear, and after that it also mounted the sd-card. Problem solved.


Please follow these steps and report if it works or not, please supply any error messages and I'll try to help you further to the best of my abilities.

Is that normal that “Internal Flash Storage” is reported as “0”? Will this give me any problems?

This is likely just due to the fact that the internal storage isn't detected by the device. It doesn't necessarily mean that it's broken or lost forever.

I'd also like to add as a final point that messing with the partitions on the internal storage is usually a very bad idea. Don't do it unless you know exactly what you're doing and why. You should always assume that messing with partitions can lead to data loss.