[Android General] lildadou:
I make a hexdump :

$ hexdump -C Downloads/perso_txt_before_after_unlock/perso_before_unlock.txt
00000000 01 00 01 00 00 01 32 30 34 30 34 23 ff ff ff ff |......20404#....|
00000010 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
00000400 ff ff ff ff ff ff 02 00 00 00 00 00 00 00 00 00 |................|
00000410 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000800 00 00 00 00 00 00 00 03 02 00 00 00 00 00 00 00 |................|
00000810 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000c00 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 |................|
00000c10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001000 00 00 00 00 00 00 00 00 00 05 00 00 00 00 00 00 |................|
00001010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001400 00 00 00 00 00 00 00 00 00 00 36 31 34 39 33 36 |..........614936|
00001410 33 38 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |38..............|
00001420 ff ff ff ff ff ff ff ff ff ff 30 30 30 30 30 30 |..........000000|
00001430 30 30 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |00..............|
00001440 ff ff ff ff ff ff ff ff ff ff 39 32 34 32 37 33 |..........924273|
00001450 35 38 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |58..............|
00001460 ff ff ff ff ff ff ff ff ff ff 30 30 30 30 30 30 |..........000000|
00001470 30 30 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |00..............|
00001480 ff ff ff ff ff ff ff ff ff ff 00 00 00 00 00 03 |................|
00001490 05 03 05 05 |....|
00001494

$ hexdump -C Downloads/perso_txt_before_after_unlock/perso_after_unlock.txt
00000000 00 00 00 00 00 01 ff ff ff ff ff ff ff ff ff ff |................|
00000010 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
00000400 ff ff ff ff ff ff 02 ff ff ff ff ff ff ff ff ff |................|
00000410 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
00000800 ff ff ff ff ff ff ff 03 00 00 00 00 00 00 00 00 |................|
00000810 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000c00 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 |................|
00000c10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001000 00 00 00 00 00 00 00 00 00 05 00 00 00 00 00 00 |................|
00001010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001400 00 00 00 00 00 00 00 00 00 00 36 31 34 39 33 36 |..........614936|
00001410 33 38 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |38..............|
00001420 ff ff ff ff ff ff ff ff ff ff 30 30 30 30 30 30 |..........000000|
00001430 30 30 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |00..............|
00001440 ff ff ff ff ff ff ff ff ff ff 39 32 34 32 37 33 |..........924273|
00001450 35 38 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |58..............|
00001460 ff ff ff ff ff ff ff ff ff ff 30 30 30 30 30 30 |..........000000|
00001470 30 30 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |00..............|
00001480 ff ff ff ff ff ff ff ff ff ff 00 00 00 00 00 03 |................|
00001490 05 03 05 05 |....|
00001494

My own file (original) :

00000000 01 00 01 00 00 01 32 30 38 30 31 23 ff ff ff ff |......20801#....|
00000010 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
00000400 ff ff ff ff ff ff 02 ff ff ff ff ff ff ff ff ff |................|
00000410 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
00000800 ff ff ff ff ff ff ff 03 52 4d 4f 31 00 00 00 00 |........RMO1....|
00000810 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000c00 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 |................|
00000c10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001000 00 00 00 00 00 00 00 00 00 05 ff ff ff ff ff ff |................|
00001010 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
00001400 ff ff ff ff ff ff ff ff ff ff 30 37 39 34 38 32 |..........079482|
00001410 35 37 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |57..............|
00001420 ff ff ff ff ff ff ff ff ff ff 30 30 30 30 30 30 |..........000000|
00001430 30 30 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |00..............|
00001440 ff ff ff ff ff ff ff ff ff ff 34 37 33 38 31 37 |..........473817|
00001450 30 34 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |04..............|
00001460 ff ff ff ff ff ff ff ff ff ff 30 30 30 30 30 30 |..........000000|
00001470 30 30 ff ff ff ff ff ff ff ff ff ff ff ff ff ff |00..............|
00001480 ff ff ff ff ff ff ff ff ff ff 00 00 00 00 00 03 |................|
00001490 05 03 05 05 |....|
00001494