First I tried to use desktop instagram but for that I needed to subscribe into google account in chromium. As settings I made that don't save anything for syncing. The desktop instagram didn't work so I wanted to unsubscribe from google account. It has a checkbox do I wan't to save synced information. I think I have made the same mistake with some other device. I thought do I wan't google remembers in cloud the saved information and I do not. But what it means that if you don't keep the information it wipes everything from your browser: extensions, settings, bookmars, and it seems something from the device too. Now in a position I have to probably flash my device if the backup I made with good settings won't help. Instagram can be used like with pc: chromium developer mode, I use iPhone 4 as a device profile, then it gives the button to load the pictures.