[HOW TO] Backup and Restore all your data (16 GB or 32 GB size) with OTG - G2 General

I don't know where I inspired to do this but it is most efficent way to backup and restore opinion.
Sometimes backuping and restoring partitions like /system /data etc. messing up the device. This method bootup normally all the time after restoring.
krezee:
Complete and foolproof bkp step. Ignoring possibility of typo.
Ability to recover completely as long as recovery is working
Yes thats right so be careful when typing!
You need 16 GB or 32 GB USB memory (formatted with exfat) and OTG CABLE
16 GB or 32 GB depends on memory size which you are using.
Begin with %100 battery every time you backup and restore
because using the OTG takes a lot of power and this process takes 30-40 minutes or more.
Backup Process
Connect your USB memory with OTG cable type it in Terminal emulator
Code:
su
Code:
dd if=/dev/block/mmcblk0 of=/mnt/media_rw/USBstorage1/mmcblk0 bs=4k
Optionally you can turn on flight mode while backupping
If process finished terminal emulator looks like this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Restore Process
1. Connect the OTG cable
2. Boot up to the TWRP recovery
3. Check OTG and /system mounted or not (if not Reboot > Recovery then check again)
4. Advanced > Terminal Command
5. While in root folder " / " press select
6. type:
Code:
dd if=/usb_otg/mmcblk0 of=/dev/block/mmcblk0 bs=4k
It will takes some time and sometimes TWRP lockscreen blinks, locks over and over again. Sometimes you can't unlock lockscreen because it is 5 times locked(or more) It is ok. Leave the phone and check after 20 min.
After process done boot up
Q: Why it is useful so much?
A: This process backup all your partitions in ONE partition --> mmcblk0 and one file.
Q: Can I use for IMEI lost problems
A: Definitely yes.
Q: I will try another rom but what if I don't like?
A: Take a backup like that install your rom and you don't like it restore your backup without messing your phone!

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Also HDD/SSD can be used. With external box or usb converter for sure.

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Yes you can I would prefer SSD, HDD sounds like power drainer.
In addition you have to format it exfat your SSD or HDD I think, if not device cannot mount the drive.
Edit: You can use mini partition tool to partition and create a partition ext4 and backup in there. Now it doesn't take so long with bs=4k you can use that method with external hdd or maybe ssd.

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Complete and foolproof bkp step. Ignoring possibility of typo.
Ability to recover completely as long as recovery is working
Thanks

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krezee said:
Complete and foolproof bkp step. Ignoring possibility of typo.
Ability to recover completely as long as recovery is working
Thanks
Click to expand...
Click to collapse
Very important point yes if recovery not working you can't restore
And typo may cause memory full error when recovery process is running
Checking file size can be useful (16 gb or 32 gb when its done)
Thanks for your attention I added to thread.