The battery does not charge

I have a y100 plus and I got this problem after about 1 year of using it, as well as my friend who have the same phone, at first I though it was the battery and i could not find a replacement battery in my area, but after months of waiting i took it to a technician and after checking for two weeks he found that the problem was from the charging circuit, I don't know the details or if it is the same as your problem but I think you should take it to technician and and ask him to check it out.

Now my phone works well without any problems.