When i installed avast anti virus in my note it is displaying not sufficient memory even though there is 200 MB
This could be because the Avast antivirus requires a high memory for it to be able to run effectively on the device. You may upgrade your memory or try to remove programs that are not necessarily important on your device.
u might have to restore it because it might have reset it self
try deleting any unwanted things and see if it still says that, if so have it looked at by someone
Yes u may have remove unwanted programs from your note. Programs require a lot of space to run and even free some memory to let u run your note smoothly