I am using the lenovo a7000 believe its is really nice phone the came is fantastic. If u face any problem like touch problel or sound jack problem the go to the service centre they will change the phone if its in under the replacement warranty other wise they will change the touch or whole sound jack you can trust their service and the phone works marvellous the battery back and camera is fantastic the selfies are awesom so I recomend this phone thank you