WELL I KNOW THIS IS AN EARLY STAGE OF ASUS ZENFONE 4 DEVELOPMENT AND THIS TUTORIAL MIGHT NOT BE USEFUL FOR NOW, BUT WHO KNOWS, THE ZENFONE 4 in THE FUTURE MAY OR MAY NOT GET DEVELOPMENT
SO EVERYTHING HERE IS JUST A PREVENTION OF LOSING imei/Radio OF THE ZENFONE 4, so after you cook a custom rom or do something which corrupts the imei/baseband, just take a backup and save it somewhere safe in your PC or CLOUD
SO ALL YOU HAVE TO DO TO HAVE A BACKUP OF YOUR imei NUMBER IS TO just type some lines in the keyboard
NOTICE:::::::****ROOT IS REQUIRED FOR THIS TO WORK****:::::
Instructions for backup
1. Download terminal emulator from GOOGLE PLAY STORE
2.Open terminal emulator and type
su
3.You will be prompted to grant superuser permissions, select grant(This will work only if you have root)
4.Now type
dd if=dev/block/mmcblk0p3 of=sdcard/mmcblk0p3.img
5.Open file manager and goto internal storage and check if there is a file with the name
mmcblk0p3.img [Its size is about 21MB] now keep that file in some safe place where it wont get deleted
Instructions for restore imei
1.Open terminal emulator and type
su
2.Now type
dd if=sdcard/mmcblk0p3.img of=dev/block/mmcblk0p3
DONE!!!!!
thats it..
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