Project

General

Profile

Issue #2025

Enable to recreate the EFS partition completely from scratch

Added by Denis 'GNUtoo' Carikli about 2 months ago. Updated about 2 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Telephony and mobile data
Target version:
Start date:
04/21/2020
Due date:
% Done:

0%

Estimated time:
(Total: 0.00 h)
Resolution:
Device:
Unknown

Subtasks

Issue #1869: Investigate, and avoid/recover from EFS corruptions.New

Actions
Issue #2024: Find offset and encoding of IMEI in the EFS for libsamsung-ipcNew

Actions

History

#1

Updated by Denis 'GNUtoo' Carikli about 2 months ago

Sometimes the data on the EFS is corrupted.

In many online guides to restore it rely on proprietary software and/or rely on the EFS being not completely destroyed.

On some devices like the Galaxy S, it's easy to completely destroy the EFS as, during the installation there is a process of converting the partition from BML (a nonstandard block layer used on the Galaxy S) to MTD.

As we still want to support such devices in libsamsung-ipc (but not in Replicant) and that it would be way better to have a robust way of recovering the EFS, it is a good idea to have a way of completely reconstructing it, assuming that the users know their IMEI.

The IMEI that can usually be found under the battery. Cellular network operators also have it, so it may also be possible to recover it through them.

Also available in: Atom PDF