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sounds like your UMI Hammer Windows driver issue is linked to the loss of root privileges after conflicts with iRoot and OneCleaner apps, which sometimes corrupt device drivers. Since you’re on stock 4.4, the best approach is to fully uninstall any leftover drivers, then reinstall the official UMI Hammer USB drivers or use MTK VCOM drivers, which are more stable for MediaTek devices. You can also try reinstalling RootJoy after a clean driver install to re-establish connectivity, and if that doesn’t work, flashing the stock ROM may help restore both root access and driver functionality. Much like tackling an outdoor sink DIY project, sometimes starting fresh with the right tools and step-by-step installation makes the process smoother. |
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