sam j500f dead , i did backup of modem1 modem2 fsl efs after programe emmc handset is live , but imei is 0, i am kindly asking how can reatore orignal imei or how to write and restore modem1 modem2 efs fsl , plz team explain stap by step , it will be healpful for us and new bigner iam waiting for solution, thanx