[Tutorial] Alternative NVRAM backup using CTR v 2.5

[aus9]

Hi

Try at own risk

credits : Carliv of x daforums

Upstream maintainer has changed his recovery.fstab to look like this for an ext4 filesystem

/nvram emmc /dev/nvram

plus other lines

To backup you go into the Carliv menu instead of backup menu
Choose backup nvram and don't forget to test a restore

As I have just rebuilt my CTR for iocean X7 here is photo as proof



this file will exist in your normal sdcard clockworkmod/backup as
nvram.img and will be exactly 5242880 BYTES

DO NOT TRY unless you have confirmed the actual size of your nvram in dumchar-info is same as this hex value

0x0000000000500000

If you use PC and adb you can try this command

Code:

adb devices (confirm device exists then)
adb shell cat /proc/dumchar_info | busybox grep nvram

In above image, you are looking at the size which is the first hex value. Any number other than above means you can not use CTR to backup nvram.
You have been warned. But same number is worth it, for the speed for the skill and for the good looks.....giggles

from Android you can run

Code:

cat /proc/dumchar_info | busybox  grep nvram

This is THE easiest method of all posted ....I am not joking

Here is restore and I have tested calls and txt (sms)