Quote Originally Posted by rusigor View Post
If I understood properly - your device has no SD/uSD card?
If so - perhaps internal memory gone.
I'm not sure you can run h2testw on it, but suggest you to try.

If utility will show you memory is damaged - you can replace internal with SD-adaptor+uSD or just solder SD card instead.
I tested now the memory and shows this:

20180518113157