I am using galaxy E7 for 6-7 months and there is no such problem being faced till now. If you are looking for a smart phone with Android as it’s OS and with awesome features you may go for E7. This phone is available at reasonable rate and hence also easy and smooth to use.
For selfie addicted people it’s the best phone as the picture quality is very good with cool modes and gestures. Hence it’s a good phone launched by Samsung. must go for it.