If your UMI Hammer lost root and the Windows driver was uninstalled, first remove conflicting apps, then reinstall the official UMI or Google USB drivers via Device Manager. Tools like RootJoy need the driver properly installed to restore root access. Guides on sites like Sportzfy with the Sportzfy logo can help you follow step-by-step solutions quickly.
It sounds like losing root access and drivers came from the iRoot and OneCleaner apps conflicting with your system. Reinstalling proper device drivers or flashing the stock firmware is usually the best fix. Just like in baseball, sometimes starting fresh is the safest way to get everything working smoothly again.
I did. I installed the USB and ADB drivers for the model. But i guess i forgot to uninstall the conflicting drivers beforehand. Need to redo everything once again.
If your UMI Hammer lost root, first uninstall conflicting apps, then reinstall official drivers via Device Manager. Step-by-step guides, like a Surah in clarity, make restoring root much easier.