Tablet not booting, mistakenly i removed the execute permission on System folder.

Discussion in 'Coby Tablets' started by ashok_fun123, Jun 6, 2013.

  1. ashok_fun123

    ashok_fun123 Member

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    Hi, Mistakenly I removed execute permission on System folder, after that its not booting. I tried with factory reset on recovery mode and couldn't able to use the adb shell and getting permission denied on /System/bin. Please suggest me how can provide execute permission back on System folder. Thanks in Advance, Ashok
     
  2. vampirefo.

    vampirefo. Senior Member Developer

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    Can't suggest anything without knowing what device you have, and how you removed permissions, Most likely you need to restore your backup.
     
  3. ashok_fun123

    ashok_fun123 Member

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    I'm having Coby kyros mid9742 rooted one and I removed the execute permission using root explorer :( . I haven't taken any backup, please suggest me, if any such backups available to do so. I kinda newbie Thanks,Ashok
     
  4. vampirefo.

    vampirefo. Senior Member Developer

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    That would require a lot of work to get the tablet working, you have no backup, Sounds like you didn't install CW recovery. a lot of files in system some have different permissions.
     
  5. ashok_fun123

    ashok_fun123 Member

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    Can you please direct me to get it worked.
     
  6. Traveller

    Traveller Super Moderator Staff Member

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    Remember when we found out that the backups weren't storing permissions? Wouldn't that bootable zip with a Coby signature (since he has no CWM) allow him to restore permissions?
     
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  7. vampirefo.

    vampirefo. Senior Member Developer

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    Hopefully that would work, you have a great memory.
     
  8. vampirefo.

    vampirefo. Senior Member Developer

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    Do a factory reset then install below zip. This restores stock permissions hopefully you aren't too far from stock.

    permissions.zip
     
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  9. ashok_fun123

    ashok_fun123 Member

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    Thank you. when I tried that got Signature verification failure error. These are steps I followed, started recover mode, performed factory reset and installed permission.zip using apply update from external storage. Thanks, Ashok
     
  10. vampirefo.

    vampirefo. Senior Member Developer

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    try this one.

    permissions_signed.zip
     
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  11. ashok_fun123

    ashok_fun123 Member

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    you rock buddy, its booted up successfully and saved my $$$. Thank you and much appreciated. Thanks, Ashok
     
  12. Traveller

    Traveller Super Moderator Staff Member

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    Now that your tablet is running again, I hope you've learned a valuable lesson here: NEVER attempt to modify your tablet without having a backup!

    With that said, you have two things to do: make a backup of the ROM using the root utility, and install ClockworkMod so you can make nandroid backups without having to connect the tablet to the PC as well.
     
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  13. leeshor

    leeshor Senior Member

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    When I saw your first post I assumed you were toast. Fortunately we have a great group of helpers here who know a lot about your tablet. Now go do that backup. ;)
     
  14. ashok_fun123

    ashok_fun123 Member

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    After the issue fixed, I found few system apk are missing in my system/app folder. Even download from Google play is failed with error "unfortunately, the process android.process.media has stopped" . and suspecting mediaprovider.apk not present in app folder due to that its failing. Though I moved all the missing system apk using root explorer, but still issue not resolved. My calendar and clock also missing. Can you suggest me how to get this system app back on? Thanks, Ashok
     
  15. ashok_fun123

    ashok_fun123 Member

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    Found the solution after moding the missed application its started working . chmod 644 /system/app/Filename.apk Thanks, Ashok
     
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