The EFS partition is usually well-protected, but common modding activities can accidentally touch it:
This is the nightmare scenario. You have no backup, and the EFS is corrupt. Is there hope? i9300 efs file
, you might have heard a recurring warning: "Backup your EFS folder first!" The EFS partition is usually well-protected, but common
The International Mobile Equipment Identity required to register on GSM infrastructure. The EFS partition is usually well-protected
For developers and serious modders, here’s what is actually inside the /efs folder once mounted (requires root):
Demystifying the I9300 EFS File: Why It’s the Lifeblood of Your Galaxy S3