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[Q][URGENT] Calling all Ubuntu Gurus for help with soft bricked LGOG

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(Last edited by shawnj0; 11th February 2014 at 04:21 PM.)
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Question [Q][URGENT] Calling all Ubuntu Gurus for help with soft bricked LGOG

Calling all Ubuntu Guru's for help with bricked LGOG

Hey guys,

I'm using a version of Gnome called Nautilus 2.28.4 at a library.

Last night using my phone, I successfully rooted my LGOG E971 but what happened is I installed TWRP and got this error message:

Secure Booting Error
Cause Boot Certification verify

So now all morning I've been trying to install Heimdall. Problem is I believe the library has disabled any access to the Terminal.

On that note, I have zero knowledge of Gnome/Fedora/Ubuntu to begin with.

Any suggestions?
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After rooting did you unlock bootloader?
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