Tech Help How to unbrick phone

pillar

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Joined
Feb 14, 2008
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So I wasnt thinking correctly last night & instead of doing a factory default setting to push my phone back to a previous version of Android, I tried to downgrade my phone to version 4.4.2. However, I keep getting the error message "open usb port fail".

Im thinking that my motherboard may not like the process or something. Im in the process of downloading the files to try & get android on my lg g3 for sprint on my laptop, but my laptop has been super slow lately.
 
download your official firmware from sammobile and download odin .
and do new installation after wiping cache . if you need further help get in touch with me
 

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