C91 Upgrade dont boot

Discussion in 'Zenithink ZT280 C91 & C91 Upgrade' started by Trytogetme, Sep 7, 2012.

  1. Trytogetme

    Trytogetme Member

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    Hi, my wife used her C91 Upgrade and give it to me today. It wont boot up.
    I only see Zenithink Boot-Screen and then a black screen appears. But with Backlights.
    So I try presing Vol+ and Vol- and Camera Button during bootup. Dont help.
    Then i download the latest firmware from Zenithink and put it on the SD-Card. Bootup doesnt work.
    Any Ideas?

    Sry for my bad english!
     
  2. Trytogetme

    Trytogetme Member

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    Here I upload a Video with the boot process, on the SD Card is the newest Rom from Zenithink but it wont upgrade.
     
    Last edited by a moderator: Jul 29, 2014
  3. Bas

    Bas Member

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    Hey mate, first try unplugging the ac charger when you do this, it's been known to cause issues with this procedure. Just checking, you have the update files in a folder called zt-update in the root directory of your sd card?
     
  4. Trytogetme

    Trytogetme Member

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    Thanks for responding!
    Yeah I tried with AC-Adapter and without! On the video you see the adapter because i try to full unload the device. But it dont work for me. And the update files are indeed in the zt-update folder.
     
  5. Bas

    Bas Member

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    Hmmm... Have you tried anything other than the files from Zenithink; like a custom ROM for example?
     
  6. Trytogetme

    Trytogetme Member

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    Yes I've tried. after serveral tries with Zenithink roms.
     
  7. benadlam

    benadlam Member

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    There is a new rom with updated boot images etc. Have you tried that?

    Sent from my LT26i using Tapatalk 2
     
  8. benadlam

    benadlam Member

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    Also... What software are you using from Zenithink site. ZT280 C91 UPGRADE? You know there's a ZT102 C91 upgrade too? You might be using the wrong software!

    Sent from my LT26i using Tapatalk 2
     
  9. benadlam

    benadlam Member

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  10. benadlam

    benadlam Member

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    The kernels are different hence why you won't boot up

    Sent from my LT26i using Tapatalk 2
     

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