Requesting for help with unrooted Vodafone (ZTE) Smart Ultra 6 stuck at lock screen

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HDbt

New member
Nov 7, 2016
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Hi all, I have an unrooted Vodafone Smart Ultra 6 smartphone (manufactured by ZTE) running the original stock ROM (Android 5.1) and USB debugging is believed to have been disabled. The phone boots up to the lock screen as normal which uses a gesture pattern. For some reason, one of the matrix's dots that is part of the pattern to unlock the phone became "unresponsive" (part of the touchscreen is broken?) and I have not been able to complete the pattern's path, therefore the phone remains stuck at the lock screen. I have tried to use ADB to remove the "gesture.key" file but was unsuccessful because of the phone's unrooted nature.
Is there any other way to bypass the lock screen? Thanks in advance.