[Q] Galaxy S4 i9505 Yellow window, no files in efs folder

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QuaTiMxi

Member
Feb 18, 2012
12
0
Stockholm
Hello, im a new to this kind of things. Yesterday I flashed a rom and when I booted the rom up a yellow window poped up, check the attactment how the window looks like. I have tried many solutions on the internet but none of them has worked. My efs folder is also empty, and I didn't make a backup of it i just made a full backup in cwm. I'm hoping that somebody can help me because my S4 is the only phone that I have. Sorry for my bad english.
 

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samersh72

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Nov 26, 2012
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Hello, im a new to this kind of things. Yesterday I flashed a rom and when I booted the rom up a yellow window poped up, check the attactment how the window looks like. I have tried many solutions on the internet but none of them has worked. My efs folder is also empty, and I didn't make a backup of it i just made a full backup in cwm. I'm hoping that somebody can help me because my S4 is the only phone that I have. Sorry for my bad english.

Efs folder is not empty.
Use root explorer or file explorer with mount option and do the following:
open file "factorymode" in efs/factoryApp directory, it probabely says "off", change to "on" (yes "on" is the correct setting to turn it off), then save

reboot


sent from my Galaxy
 
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QuaTiMxi

Member
Feb 18, 2012
12
0
Stockholm
Efs folder is not empty.
Use root explorer or file explorer with mount option and do the following:
open file "factorymode" in efs/factoryApp directory, it probabely says "off", change to "on" (yes "on" is the correct setting to turn it off), then save

reboot


sent from my Galaxy

I have tried both Root expolorer and root browser none of them dosen't find the files in efs, I have attached some thumbnails of the apps
 

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samersh72

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QuaTiMxi

Member
Feb 18, 2012
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Stockholm
I forgot to say that the lockscreen isn't working, when I press the sleep button the phone turns black but when i press it again it won't ask for my lockscreen code. I can't make calls because the mobile network isn't functional. No luck in that file manager either :confused:
 

samersh72

Senior Member
Nov 26, 2012
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I forgot to say that the lockscreen isn't working, when I press the sleep button the phone turns black but when i press it again it won't ask for my lockscreen code. I can't make calls because the mobile network isn't functional. No luck in that file manager either :confused:

and i think that power menu is gone also...
go to efs/imei folder, and make a file called "keystr" (without " ") (it is probably missing)
open "keystr" file and write "on" (without " " ),save. set permission of the file (all ticked).
But unfortunately, i think that your efs partition is corrupted. You must make a backup for this partition after rooting.
Try to flash stock firmware, some reported that it worked

sent from my Galaxy
 
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QuaTiMxi

Member
Feb 18, 2012
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Stockholm
and i think that power menu is gone also...
go to efs/imei folder, and make a file called "keystr" (without " ") (it is probably missing)
open "keystr" file and write "on" (without " " ),save. set permission of the file (all ticked).
But unfortunately, i think that your efs partition is corrupted. You must make a backup for this partition after rooting.
Try to flash stock firmware, some reported that it worked

sent from my Galaxy
I managed to get the yellow text away by uninstalling the factorytest apk.
I have tried to install stock firmware trough odin no luck there to. How can I make a backup for this partition?
 

QuaTiMxi

Member
Feb 18, 2012
12
0
Stockholm
Now my mobile network works to, I managed to fix it by turning my simcard lock of. The only problem that is left now is the lockscreen and powermenu. I can use the keystr solution and it works but every time I reboot my phone the /efs folder gets empty. Please help me im so confused :confused:

Sent from my GT-I9505 using xda app-developers app
 

benni_1994

Senior Member
Jul 8, 2012
721
449
Friedrichshafen
Guys i've got the same problem but i dont have a backup :'(
I wanted a fully clean system so i've wiped everythimg and flashed the me8 firmware as pda in odin.
Everything works but i've got no lockscreen and no power menue.
I would be so happy if someone could help me to solve my problem.
I'm using a 9505.
 

samersh72

Senior Member
Nov 26, 2012
3,572
7,472
51
GB
meettomy.site
Guys i've got the same problem but i dont have a backup :'(
I wanted a fully clean system so i've wiped everythimg and flashed the me8 firmware as pda in odin.
Everything works but i've got no lockscreen and no power menue.
I would be so happy if someone could help me to solve my problem.
I'm using a 9505.

Root your phone and see post number 6 in this thread

sent from my Galaxy
 
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QuaTiMxi

Member
Feb 18, 2012
12
0
Stockholm
It must work, no other solution, be sure that you set "keystr" file permission when you finish

sent from my Galaxy
I got it to work! I followed all the steps and when i was done I edited the keystr file in hex editor so the values was 4f and 4e and all others 00. This solution worked but its not permanent, each time I reboot the phone I have to do the same thing again, is there any permanent solution? :confused:
 

samersh72

Senior Member
Nov 26, 2012
3,572
7,472
51
GB
meettomy.site
I got it to work! I followed all the steps and when i was done I edited the keystr file in hex editor so the values was 4f and 4e and all others 00. This solution worked but its not permanent, each time I reboot the phone I have to do the same thing again, is there any permanent solution? :confused:

Save the file after editing

sent from my Galaxy
 

benni_1994

Senior Member
Jul 8, 2012
721
449
Friedrichshafen
Yeah I have followed your advice but the only way to disable the yellow window is to freeze/uninstall it :/ The permissions are all ticked (0777). Even after a reboot. Tried the solution from post 2 and 6 ...

This wouldnt be so bad but the power menue and the lockscreen are more important. I hope someone can help :)

Sent from my GT-I9505 using xda app-developers app
 

benni_1994

Senior Member
Jul 8, 2012
721
449
Friedrichshafen
I'm so glad... everything works again. Download the android terminal emulatir from the playstore and enter the following commands:

su
echo -n ON > /efs/FactoryApp/factorymode
sync
reboot

This was the only way I was able to get the locksceeen and power menue :)
Hope that helps you!

Sent from my GT-I9505 using xda app-developers app
 
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samersh72

Senior Member
Nov 26, 2012
3,572
7,472
51
GB
meettomy.site
I'm so glad... everything works again. Download the android terminal emulatir from the playstore and enter the following commands:

su
echo -n ON > /efs/FactoryApp/factorymode
sync
reboot

This was the only way I was able to get the locksceeen and power menue :)
Hope that helps you!

Sent from my GT-I9505 using xda app-developers app

Good to hear:thumbup:
This command leads to same result posted in second post

sent from my Galaxy
 

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  • 4
    Hello, im a new to this kind of things. Yesterday I flashed a rom and when I booted the rom up a yellow window poped up, check the attactment how the window looks like. I have tried many solutions on the internet but none of them has worked. My efs folder is also empty, and I didn't make a backup of it i just made a full backup in cwm. I'm hoping that somebody can help me because my S4 is the only phone that I have. Sorry for my bad english.

    Efs folder is not empty.
    Use root explorer or file explorer with mount option and do the following:
    open file "factorymode" in efs/factoryApp directory, it probabely says "off", change to "on" (yes "on" is the correct setting to turn it off), then save

    reboot


    sent from my Galaxy
    2
    Dear all, it happenned to me too but I managed to repair it.
    you need your S4 to be root installed, from your PC using adb :
    adb shell
    su
    mke2fs -t ext4 /dev/block/mmcblk0p10
    mount -w -t ext4 /dev/block/mmcblk0p10
    reboot

    On your S4, download the android terminal emulator from the playstore and enter the following commands:
    su
    echo -n ON > /efs/FactoryApp/factorymode
    sync
    exit
    exit

    reboot in recovery and wipe data factory reset

    it should be OK.
    hope this help everyone.
    best regards.

    from http://xdaforums.com/showthread.php?t=2245460 and http://xdaforums.com/showthread.php?t=2204960 and benni2903 post from this thread
    1
    I have tried both Root expolorer and root browser none of them dosen't find the files in efs, I have attached some thumbnails of the apps

    Can you make a call?.
    Any way use this file mansger (go to setting and enable "root explorer" and "mount system folders" ) https://play.google.com/store/apps/...t#?t=W251bGwsMSwyLDEsImNvbS5yaG1zb2Z0LmZtIl0.

    sent from my Galaxy
    1
    I forgot to say that the lockscreen isn't working, when I press the sleep button the phone turns black but when i press it again it won't ask for my lockscreen code. I can't make calls because the mobile network isn't functional. No luck in that file manager either :confused:

    and i think that power menu is gone also...
    go to efs/imei folder, and make a file called "keystr" (without " ") (it is probably missing)
    open "keystr" file and write "on" (without " " ),save. set permission of the file (all ticked).
    But unfortunately, i think that your efs partition is corrupted. You must make a backup for this partition after rooting.
    Try to flash stock firmware, some reported that it worked

    sent from my Galaxy
    1
    Guys i've got the same problem but i dont have a backup :'(
    I wanted a fully clean system so i've wiped everythimg and flashed the me8 firmware as pda in odin.
    Everything works but i've got no lockscreen and no power menue.
    I would be so happy if someone could help me to solve my problem.
    I'm using a 9505.

    Root your phone and see post number 6 in this thread

    sent from my Galaxy