The fault has been found, it was the ignition switch... You could switch on but when the switch was in the upper position it wasn't making contact inside... A new switch is coming from Italy...
Good to know that you've found the cause. I never had problems with the RH switch gear but the LH one gave problems with accessing the menus. A good dose of a proprietary contact cleaner sorted it.
I had the same problem, so took apart the key fob removed the battery, cleaned the bottom connector with an emery board, put the battery back in and it started.
I catch similar problem at my MS1000ds few days ago. For first i check battery,after starter. Battery -ok. I checked the starter by directly connecting the positive terminal on the starter and the battery. Starter is dead.. When I removed and dismantled the starter, I saw that the problem was in the very worn brushes. In addition, they are burnt.
A new starter in Russia costs about 400 EUR. But I found a way out of this situation. In the nearest store, was purchased starter brush kit from Lada 2110. The brushes were a bit larger in size than necessary. I took the file and sharpened the edges a bit. Now I have solved this problem.