[android-developers] Mobile not started

When I was upgrading my phone from lollipop to marshmallows , I switched off my phone by mistake then phone my not started only welcome page show , please guide me what can I do , how to recover my phone , I have Micromax android one phone -- You received this message because you are subscribe

[android-developers] everything in gen folder deleted

I opened Eclipse to continue working on a project and found that everything inside my gen folder was deleted. I've already tried cleaning my project and saw on another discussion to use ctrl+shift+o to re-import the R.java information. Neither of these fixed the problem. Is there any way I can re