how to restore DWG file in AutoCad 2009?

how to restore DWG file in AutoCad 2009?
Bakup didn't manage to be made. in temporary folders it isn't present. I tried by AutoCad program restore file. but autocad couldn't restore this file. Advise me still options, please!

In the
options AutoCad in the FILES tab, (the
leftmost tab) there is a way to AutoSave. There AutoCad saves temporary files,
usually with extension sv$ (unless otherwise specified). It is
necessary to look for there. As a rule, if the files are there, then you can
find them by date, and their volume can be seen, there is in them something, or
they are empty. For opening it is necessary to rename simply them, having added
the dwg expansion. Too most it is possible to make with files with the bak
expansion. And else in autocad there is
a command "recover". It allows you to open corrupted files.

Or use the
utility of DWG Recovery Kit for
restore your damaged DWG FILE.!/dwg

Useful advice on this forum

In 2009, if you have saved the file at least twice, there should be a file in the same directory / folder associated with the project that has the same name as the drawing (.dwg) you were using, except the extension will be something like .bak - this is the previous version of the drawing file before the last save.

To get that back, it will be a 2 step process. First, rename the current file, ie., drawing.dwg to drawingA.dwg. Then rename drawing.bak to drawing.dwg.

That should get you up and running.

Good luck!