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-   -   How to wipe efs by adb rooted (https://forum.gsmhosting.com/vbb/f83/how-wipe-efs-adb-rooted-2057435/)

zishhaider 02-25-2016 12:38
How to wipe efs by adb rooted
 
hi i got sm e700f(5.1.1), i need to write cert, z3x octoplus both failed on bypass msl and wiping efs.. so I decided to give it a shot,, here is some info

Code:
drwxr-xr-x    2 0        0              580 Mar 19  2015 ←[1;34m.←[0m
drwxr-xr-x    4 0        0              660 Mar 19  2015 ←[1;34m..←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36maboot←[0m -> ←[1
;35m/dev/block/mmcblk0p5←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36mapnhlos←[0m -> ←
[1;35m/dev/block/mmcblk0p1←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mbackup←[0m -> ←[
1;35m/dev/block/mmcblk0p19←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mboot←[0m -> ←[1;
35m/dev/block/mmcblk0p16←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mcache←[0m -> ←[1
;35m/dev/block/mmcblk0p25←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36mddr←[0m -> ←[1;3
5m/dev/block/mmcblk0p4←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mefs←[0m -> ←[1;3
5m/dev/block/mmcblk0p13←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mfota←[0m -> ←[1;
35m/dev/block/mmcblk0p18←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mfsc←[0m -> ←[1;3
5m/dev/block/mmcblk0p20←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36mfsg←[0m -> ←[1;3
5m/dev/block/mmcblk0p9←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mhidden←[0m -> ←[
1;35m/dev/block/mmcblk0p26←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36mmodem←[0m -> ←[1
;35m/dev/block/mmcblk0p2←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mmodemst1←[0m ->
←[1;35m/dev/block/mmcblk0p14←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mmodemst2←[0m ->
←[1;35m/dev/block/mmcblk0p15←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mpad←[0m -> ←[1;3
5m/dev/block/mmcblk0p11←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mparam←[0m -> ←[1
;35m/dev/block/mmcblk0p12←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mpersdata←[0m ->
←[1;35m/dev/block/mmcblk0p23←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mpersist←[0m -> ←
[1;35m/dev/block/mmcblk0p22←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36mqhee←[0m -> ←[1;
35m/dev/block/mmcblk0p8←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36mqsee←[0m -> ←[1;
35m/dev/block/mmcblk0p7←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mrecovery←[0m ->
←[1;35m/dev/block/mmcblk0p17←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36mrpm←[0m -> ←[1;3
5m/dev/block/mmcblk0p6←[0m
lrwxrwxrwx    1 0        0              20 Mar 19  2015 ←[1;36msbl1←[0m -> ←[1;
35m/dev/block/mmcblk0p3←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36msec←[0m -> ←[1;3
5m/dev/block/mmcblk0p10←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36mssd←[0m -> ←[1;3
5m/dev/block/mmcblk0p21←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36msystem←[0m -> ←[
1;35m/dev/block/mmcblk0p24←[0m
lrwxrwxrwx    1 0        0              21 Mar 19  2015 ←[1;36muserdata←[0m ->
←[1;35m/dev/block/mmcblk0p27←[0m
uid=2000 gid=2000 groups=1003,1004,1007,1011,1015,1028,3001,3002,3003,3006@e7lte
:/ $
Code:
rootfs on / type rootfs (ro,relatime)
tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,size=958432k,nr_inod
146,mode=755)
devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600)
none on /dev/cpuctl type cgroup (rw,relatime,cpu)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,seclabel,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
none on /sys/fs/cgroup type tmpfs (rw,seclabel,relatime,size=958432k,nr_in
56146,mode=750,gid=1000)
none on /acct type cgroup (rw,relatime,cpuacct)
tmpfs on /mnt/secure type tmpfs (rw,seclabel,relatime,size=958432k,nr_inod
146,mode=700)
tmpfs on /mnt/asec type tmpfs (rw,seclabel,relatime,size=958432k,nr_inodes
6,mode=755,gid=1000)
tmpfs on /mnt/obb type tmpfs (rw,seclabel,relatime,size=958432k,nr_inodes=
,mode=755,gid=1000)
/dev/block/bootdevice/by-name/apnhlos on /firmware type vfat (ro,context=u
t_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,code
37,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/bootdevice/by-name/modem on /firmware-modem type vfat (ro,conte
bject_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,
ge=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/bootdevice/by-name/system on /system type ext4 (ro,seclabel,rel
norecovery)
/dev/block/bootdevice/by-name/userdata on /data type ext4 (rw,seclabel,nos
dev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,
rdered)
/dev/block/bootdevice/by-name/cache on /cache type ext4 (rw,seclabel,nosui
v,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,er
anic,data=ordered)
/dev/block/bootdevice/by-name/persist on /persist type ext4 (rw,seclabel,n
nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_allo
=ordered)
/dev/block/bootdevice/by-name/efs on /efs type ext4 (rw,seclabel,nosuid,no
atime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=o
)
/dev/block/bootdevice/by-name/persdata on /persdata/absolute type ext4 (rw
bel,nosuid,nodev,relatime,data=ordered)
/dev/block/bootdevice/by-name/hidden on /preload type ext4 (ro,seclabel,no
odev,relatime,data=ordered)
/data/privatemode on /mnt/shell/privatemode type sdcardfs (rw,seclabel,nos
dev,relatime,uid=1000,gid=1000,derive=none,reserved=20MB)
/data/knox/secure_fs/enc_media on /mnt/shell/enc_media type sdcardfs (rw,s
l,nosuid,nodev,relatime,uid=1000,gid=1000,derive=none,reserved=20MB)
/data/knox/sdcard on /mnt/shell/knox-emulated type sdcardfs (rw,seclabel,n
nodev,relatime,uid=1000,gid=1000,derive=none)
/data/media on /mnt/shell/emulated type sdcardfs (rw,seclabel,nosuid,nodev
ime,uid=1023,gid=1023,derive=legacy,reserved=20MB)
/dev/block/loop0 on /su type ext4 (rw,seclabel,noatime,data=ordered)
/data/media on /storage/emulated/0 type sdcardfs (rw,seclabel,nosuid,nodev
ime,uid=1023,gid=1023,derive=legacy,reserved=20MB)
/dev/block/vold/179:65 on /mnt/media_rw/extSdCard type vfat (rw,dirsync,se
,nosuid,nodev,noexec,noatime,nodiratime,uid=1023,gid=1023,fmask=0007,dmask
allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,err
mount-ro)
/mnt/media_rw/extSdCard on /storage/extSdCard type sdcardfs (rw,seclabel,n
nodev,relatime,uid=1023,gid=1023,derive=unified)
root@e7lte:/ #

Anyhelp would be much appreciated

adhitya_1978 02-25-2016 12:55
If that's certificate of imei. so mean you already know where is block the certificate will be store.

zishhaider 02-25-2016 13:09
Quote:
Originally Posted by adhitya_1978 (Post 11650634)
If that's certificate of imei. so mean you already know where is block the certificate will be store.
it is just a dump log, I will use box for write cert...

iMoG 02-25-2016 13:10
Root with CF-Auto root and flash recovery.img from original firmware again, then wipe cache from recovery and proceed.

zishhaider 02-25-2016 13:17
Quote:
Originally Posted by iMoG (Post 11650681)
Root with CF-Auto root and flash recovery.img from original firmware again, then wipe cache from recovery and proceed.
I have already tried restored cache+recovery = same

stanner_austin 02-26-2016 10:27
@zishhaider
Hello
If software say msl bypass error that's not mean its MSL error.
New samsung firmware rejecting MSL authorization if warranty is void. i posted this many month go.

You do not need reset efs on most qualcomm just to write cert or unlock. but on security corruption such as null imei or reboot after boot complete need to reset security..

2 solution for such phone.
1 try your luck downgrade baseband and write cert if ur lucky it will accept even if its show null then update baseband back.
2 find samsung combination flash which use for testing internal stuff which ignore all security check made by baseband.

zishhaider 02-26-2016 12:48
Quote:
Originally Posted by stanner_austin (Post 11652584)
@zishhaider
Hello
If software say msl bypass error that's not mean its MSL error.
New samsung firmware rejecting MSL authorization if warranty is void. i posted this many month go.

You do not need reset efs on most qualcomm just to write cert or unlock. but on security corruption such as null imei or reboot after boot complete need to reset security..

2 solution for such phone.
1 try your luck downgrade baseband and write cert if ur lucky it will accept even if its show null then update baseband back.
2 find samsung combination flash which use for testing internal stuff which ignore all security check made by baseband.
@stanner_austin thanks man, at least some one answered , mobile is dead now, blang said post in forum and even after 48 hours no reply, but you replied even i m not your product user, that is called support, thumbs up... here it is my thread and i hope as usually will be deleted...

http://forum.gsmhosting.com/vbb/f453...ailed-2057380/

genhack23 02-26-2016 22:31
The easy ways now is restore emmc (emmc direct)... write boot partiton and rom1(blank efs) after u can write easy u cert...

loniryan 03-03-2016 15:37
delete efs folder..under system forlder with root and file explorer

dicle_gsm 03-03-2016 16:07
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p14"
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p15"
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p9"

concepttheman 03-17-2016 02:51
Isn't it 20 2 and 14? Fsg modemst1 and 2?

concepttheman 03-17-2016 02:56
My bad you were right I was looking at it wrong

sajid zarif 12-25-2017 14:49
please share cert i need this cert E700f duos

Mofadal_eMMC 12-31-2017 14:49
try
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p14"
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p15"

DYNET 01-02-2018 07:53
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p14"
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p15"
adb shell su -c "dd if=/dev/zero of=/dev/block/mmcblk0p9"


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