Samsung J400F
Whats Is EFS
The EFS refers to a folder called EFS which can store information like
meid, imei, serial number, config, diag settings and radio settings, etc
in an encrypted format at the file system level stores. So it is very
neccessary for us to backup EFS before flashing ROMs.
Whats Is Cert
These are certificates that are signed by Samsung's database. These are primarily used for IMEI numbers on phones. ... Cert files can be obtained by copying it from another phone and downloaded by places such as Files360
Password: Files360
Extra EFS For Hang On Logo
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01978430076
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