The Files needed to run the lockscreen are stored in the EFS PartitionĬant imagine the amount of people that may have damaged their phones with this EFS partition image.Your SDCard Partition may be linked somehow with the EFS Partition.Why Does my Internal SD Card Show 0 bytes? No backup? Reflash the latest stock ROM using Odin Or Read This Guide.Restore your EFS from a backup - A logical first step.There are 2 main steps to take to try to resolve this.Whenever you flash a ROM, be that a custom ROM via a custom recovery or an official ROM via Odin, you risk corrupting your /efs partition and losing your IMEI.If the data in this partition gets corrupt, you will lose your IMEIĪ generic IMEI, meaning your real IMEI is not readable, presumably because it is corrupt but there are other reasons too. Important stuff.Ī partition on your internal memory containing important data including the IMEI. Without one, you cannot make calls, send SMS or use mobile data. It is required in order to be correctly identified on a mobile network. A unique identification number programmed onto your phone.
