can't boot my phone cause I have deleted my efs folder becasue in one of the guides here someone said that if you had full recovery of your efs and you sure that your efs folder is damged than delete the folder and recover, well so I did... (I downgrade from lolipop to 4.4.2, lost my imei in the "process"
I had the efs.img backup on my computer and I moved it to my phone, I deleted my efs folder using root browser and than I used some adb app to type the commend "dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096" and I restred my phone, but it never left samsmung logo and I can't boot up my phone I tried to go to stock channgeing roms, nothing helps, in recovery mode it says "E:/can't mount efs" something like that.. and the phone won't boot up, just stuck on samsung logo.
somone have any Idea what can i do?
After flashing a stock ROM, did you perform a factory wipe before booting the phone for the first time?
audit13 said:
After flashing a stock ROM, did you perform a factory wipe before booting the phone for the first time?
Click to expand...
Click to collapse
you mean when I downgrade from lolipop to the stcok rom?, if yes Than I didn't and that what cause me losing my imei and started this whole efs problem...
Did you try flashing back to stock LP? Flashing stock kk would not normally damage the efs.
audit13 said:
Did you try flashing back to stock LP? Flashing stock kk would not normally damage the efs.
Click to expand...
Click to collapse
yey I manged to fix ti!!!! god that was hard **** yes!! to me!
if someone will see this so this is what I did
1) I flashed to stock rom based lolipop but still had the issue of "E:failed to mount /efs" cause it didn't recvoer the folder and my phone still won't boot up, so I found a fix
right here http://forum.xda-developers.com/galaxy-s3/general/how-to-fix-efailed-to-mount-efs-invalid-t2858056
adb shell
Code:
mke2fs /dev/block/mmcblk0p3
Code:
mount -w -t ext4 /dev/block/mmcblk0p3 (this line dind't even work for me so I skipped it)
Code:
reboot
affter I did it phone boot up finally but I still had a fake Imei so next I used this guide (this time I ain't deleting the efs folder like he wrote"
2)http://forum.xda-developers.com/showthread.php?t=2392632, I alredy had efs.img as back up so all I did is install latest "su" and the latest busybox than I installed "Terminal Emulator"
and used the second method
"Put your efs.img on your phone memory(not external sd card!) in the main memory, not inside folder.
Open terminal emulator
Write the following:
Code:
su
Then click enter. It will ask for super user permission, give it permissions.
Then write:
Code:
dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096"
my phone rebooted and now I have my imei back!
Congratulations on your success and posting your solution!
worked for me
okdark4 said:
"Put your efs.img on your phone memory(not external sd card!) in the main memory, not inside folder.
Open terminal emulator
Write the following:
Code:
su
Then click enter. It will ask for super user permission, give it permissions.
Then write:
Code:
dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096"
my phone rebooted and now I have my imei back!
Click to expand...
Click to collapse
Hi okdark4,
thanks for sharing!
For me, I hat to use a slightly different command - just for the others to know:
su
dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3
reboot
That's it!
Related
hi .
my problem started when i used a command to backup my efs : reboot nvbackup
the phone rebooted but i get this problem (process system isn't responding )
1) i tried two firmware 4.3 version
2) when entring to recovery i get this error
E:missing biymap icon_att_fota_installing (code -1)
E:missing biymap icon_att_fota_updating (code -1)
E:missing biymap icon_att_fota_complete (code -1)
E:missing biymap icon_att_fota_error (code -1)
3) tried to flash recovery Philz Touch 5.15.0 and wiping dalvik cache
4) flashed Synergy_Backup_HWKeys_signed.zip discribed in this thread
http://forum.xda-developers.com/showthread.php?t=2507403
5) flashed parm.bin dumped from working phone
6) flashed efs.img.ext4 dumped from working phone
all this steps don't solve my problem
I would be very grateful for help and any hints/suggestions are highly appreciated.
Thanks a lot in advance!
any one there?
psa47 said:
any one there?
Click to expand...
Click to collapse
Take a look HERE
*EDIT: Next time use this app for backup ur EFS partition: HERE
Joku1981 said:
Take a look HERE
*EDIT: Next time use this app for backup ur EFS partition: HERE
Click to expand...
Click to collapse
thanks for reply but my problem now is : ican't enter the menu, can't see phone desktop
only download mode or recovery.
the restore backup discribed on the tuto doesn't talk about restoring nvdata from recovery
i need pit file, i extract it from working phone using dd if=/dev/block/mmcblk0 of=/sdcard/out.pit bs=8 count=481 skip=2176
finally i solved my problem after hard work and 2 week of search an d this is how to:
i followed this thread wich is writed for n9005 http://forum.xda-developers.com/showthread.php?t=2567133
i use this recovery file http://forum.xda-developers.com/showthread.php?t=2529064
you need mmcblk0p12, mmcblk0p13 and mmcblk018 backup files
1- copy UPDATE-SuperSU-v1.65 - Superuser http://www.multiupload.nl/ALFN3R16HY and mmcblk files to external sd
2- go to recovery and run UPDATE-SuperSU-v1.65 ( don't reboot system after applying this update zip).
3- without rebooting phone; go to -mount and storage- and mount /system & mount external_sd.
4- open cmd in adb folder and run these commands:
adb shell su ( if you get : permission denied then rerun UPDATE-SuperSU-v1.65)
dd if=/external_sd/mmcblk0p12 of=/dev/block/mmcblk0p12
dd if=/external_sd/mmcblk0p13 of=/dev/block/mmcblk0p13
dd if=/external_sd/mmcblk0p18 of=/dev/block/mmcblk0p18
reboot
after reboot phone should boot normally and work properly .
JUST PRESS THANKS IF THIS HELP YOU
HELP
psa47 said:
finally i solved my problem after hard work and 2 week of search an d this is how to:
i followed this thread wich is writed for n9005 http://forum.xda-developers.com/showthread.php?t=2567133
i use this recovery file http://forum.xda-developers.com/showthread.php?t=2529064
you need mmcblk0p12, mmcblk0p13 and mmcblk018 backup files
1- copy UPDATE-SuperSU-v1.65 - Superuser http://www.multiupload.nl/ALFN3R16HY and mmcblk files to external sd
2- go to recovery and run UPDATE-SuperSU-v1.65 ( don't reboot system after applying this update zip).
3- without rebooting phone; go to -mount and storage- and mount /system & mount external_sd.
4- open cmd in adb folder and run these commands:
adb shell su ( if you get : permission denied then rerun UPDATE-SuperSU-v1.65)
dd if=/external_sd/mmcblk0p12 of=/dev/block/mmcblk0p12
dd if=/external_sd/mmcblk0p13 of=/dev/block/mmcblk0p13
dd if=/external_sd/mmcblk0p18 of=/dev/block/mmcblk0p18
reboot
after reboot phone should boot normally and work properly .
JUST PRESS THANKS IF THIS HELP YOU
Click to expand...
Click to collapse
!!!! Help I'm with the same problem .. but can not these files bck .. can someone please pass me, I'm already two weeks trying to fix
Solved. Root then back up EFS. Of course...
http://forum.xda-developers.com/showpost.php?p=48709232
So I'm trying to root my VS98024A but I'm having trouble backing up the EFS.
Step says to do this
To backup the EFS manually use the code below. It will save your two EFS partitions to the root of internal sd.
Code:
adb shell
su
dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst1 of=/sdcard/modemst1.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst2 of=/sdcard/modemst2.img
Click to expand...
Click to collapse
But I can't for the life of me find where to type it. I found something that says to SHIFT+RMS and open a CMD in the IOroot25 folder. I typed adb devices and I got a serial number so I know the phone is plugged in fine.
But then I type in
Code:
adb shell
su
and it shows that su is not found. I understand that I need to be rooted to use su command but how am I suppose to back up the EFS before I root?
I don't have a laptop And I really need to flash the stock ROM of 4.4.2.. I have TWRP installed and that's all.. Is anyone aware of some flashable zip of this stock ROM? Thanks in advance
I wanted to help but I have no idea how to create and update-binary file, so it is not flashable, but you can go back to 4.4.2 without computer. So what you need to is:
Download this: V40010C
Extract and place it onto your sd card!. Make sure all files are under /sdcard/* directory. Boot into the recovery, go to wipe -> advanced wipe -> wipe everything except sd card and internal storage. In recovery, go to advanced, then terminal. Folders should pop on the screen but do not go to any different directory, just press select. Now you should be in the terminal. Now, I'm really sorry but it will take some time, you have to enter each of this commands separately into the terminal:
Code:
dd if=/sdcard/V40010C/bootloader/aboot.bin of=/dev/block/platform/msm_sdcc.1/by-name/aboot
dd if=/sdcard/V40010C/bootloader/factory.bin of=/dev/block/platform/msm_sdcc.1/by-name/factory
dd if=/sdcard/V40010C/bootloader/laf.bin of=/dev/block/platform/msm_sdcc.1/by-name/laf
dd if=/sdcard/V40010C/bootloader/rpm.bin of=/dev/block/platform/msm_sdcc.1/by-name/rpm
dd if=/sdcard/V40010C/bootloader/sbl1.bin of=/dev/block/platform/msm_sdcc.1/by-name/sbl1
dd if=/sdcard/V40010C/bootloader/sdi.bin of=/dev/block/platform/msm_sdcc.1/by-name/sdi
dd if=/sdcard/V40010C/bootloader/tz.bin of=/dev/block/platform/msm_sdcc.1/by-name/tz
dd if=/sdcard/V40010C/boot.bin of=/dev/block/platform/msm_sdcc.1/by-name/boot
dd if=/sdcard/V40010C/cust.bin of=dev/block/platform/msm_sdcc.1/by-name/cust
dd if=/sdcard/V40010C/modem.bin of=/dev/block/platform/msm_sdcc.1/by-name/modem
dd if=/sdcard/V40010C/persist.bin of=/dev/block/platform/msm_sdcc.1/by-name/persist
dd if=/sdcard/V40010C/system.img of=/dev/block/platform/msm_sdcc.1/by-name/system
Remember only system is an img file! It is about 2,5GB so to flash it will take about 5-10 min.
Once you flashed everything you can reboot, in my case it said that OS is not installed but the recovery didn't know yet that we just flashed it. So just swipe to reboot and tablet should boot up with 4.4.2 !
If you have any problems just tell me
Adam Myczkowski said:
I wanted to help but I have no idea how to create and update-binary file, so it is not flashable, but you can go back to 4.4.2 without computer. So what you need to is:
Download this: V40010C
Extract and place it onto your sd card!. Make sure all files are under /sdcard/* directory. Boot into the recovery, go to wipe -> advanced wipe -> wipe everything except sd card and internal storage. In recovery, go to advanced, then terminal. Folders should pop on the screen but do not go to any different directory, just press select. Now you should be in the terminal. Now, I'm really sorry but it will take some time, you have to enter each of this commands separately into the terminal:
Code:
dd if=/sdcard/V40010C/bootloader/aboot.bin of=/dev/block/platform/msm_sdcc.1/by-name/aboot
dd if=/sdcard/V40010C/bootloader/factory.bin of=/dev/block/platform/msm_sdcc.1/by-name/factory
dd if=/sdcard/V40010C/bootloader/laf.bin of=/dev/block/platform/msm_sdcc.1/by-name/laf
dd if=/sdcard/V40010C/bootloader/rpm.bin of=/dev/block/platform/msm_sdcc.1/by-name/rpm
dd if=/sdcard/V40010C/bootloader/sbl1.bin of=/dev/block/platform/msm_sdcc.1/by-name/sbl1
dd if=/sdcard/V40010C/bootloader/sdi.bin of=/dev/block/platform/msm_sdcc.1/by-name/sdi
dd if=/sdcard/V40010C/bootloader/tz.bin of=/dev/block/platform/msm_sdcc.1/by-name/tz
dd if=/sdcard/V40010C/boot.bin of=/dev/block/platform/msm_sdcc.1/by-name/boot
dd if=/sdcard/V40010C/cust.bin of=dev/block/platform/msm_sdcc.1/by-name/cust
dd if=/sdcard/V40010C/modem.bin of=/dev/block/platform/msm_sdcc.1/by-name/modem
dd if=/sdcard/V40010C/persist.bin of=/dev/block/platform/msm_sdcc.1/by-name/persist
dd if=/sdcard/V40010C/system.img of=/dev/block/platform/msm_sdcc.1/by-name/system
Remember only system is an img file! It is about 2,5GB so to flash it will take about 5-10 min.
Once you flashed everything you can reboot, in my case it said that OS is not installed but the recovery didn't know yet that we just flashed it. So just swipe to reboot and tablet should boot up with 4.4.2 !
If you have any problems just tell me
Click to expand...
Click to collapse
Wow.. Amazing.. I don't know how to thank you man.. That's a lot of helping
BIG THANKS!!
Adam Myczkowski said:
I wanted to help but I have no idea how to create and update-binary file, so it is not flashable, but you can go back to 4.4.2 without computer. So what you need to is:
Download this: V40010C
Extract and place it onto your sd card!. Make sure all files are under /sdcard/* directory. Boot into the recovery, go to wipe -> advanced wipe -> wipe everything except sd card and internal storage. In recovery, go to advanced, then terminal. Folders should pop on the screen but do not go to any different directory, just press select. Now you should be in the terminal. Now, I'm really sorry but it will take some time, you have to enter each of this commands separately into the terminal:
Code:
dd if=/sdcard/V40010C/bootloader/aboot.bin of=/dev/block/platform/msm_sdcc.1/by-name/aboot
dd if=/sdcard/V40010C/bootloader/factory.bin of=/dev/block/platform/msm_sdcc.1/by-name/factory
dd if=/sdcard/V40010C/bootloader/laf.bin of=/dev/block/platform/msm_sdcc.1/by-name/laf
dd if=/sdcard/V40010C/bootloader/rpm.bin of=/dev/block/platform/msm_sdcc.1/by-name/rpm
dd if=/sdcard/V40010C/bootloader/sbl1.bin of=/dev/block/platform/msm_sdcc.1/by-name/sbl1
dd if=/sdcard/V40010C/bootloader/sdi.bin of=/dev/block/platform/msm_sdcc.1/by-name/sdi
dd if=/sdcard/V40010C/bootloader/tz.bin of=/dev/block/platform/msm_sdcc.1/by-name/tz
dd if=/sdcard/V40010C/boot.bin of=/dev/block/platform/msm_sdcc.1/by-name/boot
dd if=/sdcard/V40010C/cust.bin of=dev/block/platform/msm_sdcc.1/by-name/cust
dd if=/sdcard/V40010C/modem.bin of=/dev/block/platform/msm_sdcc.1/by-name/modem
dd if=/sdcard/V40010C/persist.bin of=/dev/block/platform/msm_sdcc.1/by-name/persist
dd if=/sdcard/V40010C/system.img of=/dev/block/platform/msm_sdcc.1/by-name/system
Remember only system is an img file! It is about 2,5GB so to flash it will take about 5-10 min.
Once you flashed everything you can reboot, in my case it said that OS is not installed but the recovery didn't know yet that we just flashed it. So just swipe to reboot and tablet should boot up with 4.4.2 !
If you have any problems just tell me
Click to expand...
Click to collapse
Hey, I know it's been a while since you posted this. but could you help me try to recover my v400? It doesn't boot at all and I believe that the partitions are corrupt. How can I flash them?
I finally managed to repair the damage caused by EFS and by when I go to the root explorer I had a clean empty folder EFS whatever I tried to install the new ROM moaning and costum and wipe reset Factory me is always the folder EFS empty my IMEI was correct as it was under the battery, the only thing I had a bad signal and wifi is deenergizes.
To repair the damage I'm desperate to be ordered from stock rom sammobil version 4.4.2 because my phone was slow I then ordered stoc 5.0 then I root the phone and ordered phils latest recover and then I went under the option to mount and put the mount seytem then I have connected phone to a PC and install the adb shell on the computer I Open cmd and typed it
adb shell
su
mke2fs /dev/block/mmcblk0p11 ( skip to next step if fail)
mount -w -t ext4 /dev/block/mmcblk0p11
reboot
This will create a generic EFS files on device
Root explorer/efs and delete factorymode(OFF) and replace with factorymode(ON)
reboot in recovery wipedata factory reset...don
This last what it says to me it was not necessary because I went in and looked exporer root file factorymode where it has been on only one I did factory reset and that's it I got back EFS files and I am so done with all programs EFS Bacup :good:
P : S: because I have a bad signal or should now install new modem in order to find the best signal
Yeah used to see that tutorial by nowy57.
Sent from my GT-N7000
Hi mates, thank you for helping!
Really a complicated story mine, had on this phone already issues with baseband (when I bought it had LL 5.01) when I upgraded it to RR 7.1.2, then I figured out I needed to upload the latest stock 6.0.1 G900PVPS3CQD1 to have it working, I also PITted the phone before, it worked for 5-6 monts, then the signal went off.
I've tried different solutions:
1) in TWRP typed in its terminal the commands I've found here:
dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst1
dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst2
It said "not enough space" but it looks in the end it copied around 3MB. Rebbited but no changes
2) Again thr TWRP:
dd if=/dev/block/platform/msm_sdcc.1/by-name/efs of=efs.bak
dd if=/dev/block/bootdevice/by-name/modemst1 of=modemst1.bak bs=4096
dd if=/dev/block/bootdevice/by-name/modemst2 of=modemst2.bak bs=4096
find /efs -exec ls -l {} \; > efs-permissions
nothing changed
3) updated to lineage 15.1, it says "no sim card" (the sim works fine in another 900V) with rooted ADB shell tried the "dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst1" but no such file. Then I decided to flash stock LL 5.01 BOK but like in stock 6.01 says "invalid sim card".
4) I run in adb:
adb shell
mount
and can't see /stl4 /efs so this is why I assume that efs is corrupted.
Somebody says to flash (under Odin PDA) EFS-Fix-regalstreak.tar.md5, but I won't risk to flash other phones data on my phone, including its IMEI.
Someone else says I have to backup EFS (I suppose this is possibile because when I executed adb commands it never said me that the files don't exist) and reflash it to fix the corruption. How this is possible to do? Thank you!
PS: I attached the backupof EFS made by TWRP, seems all good (not corrupted), why sim doesn't work?
I'm now on stock LL BOK, using in adb mount I have this
/dev/block/platform/msm_sdcc.1/by-name/efs /efs ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=ordered 0 0