echo noop > /sys/block/mmcblk0/queue/scheduler
Most UMS9117 devices (e.g., Nokia C2, Alcatel 1B, Infinix Smart 6) suffer from lag due to driver inefficiencies. Here is how to top-driver tune:
Look for these UMS9117 processes:
Even with the correct driver, users encounter issues. Here is the UMS9117-specific troubleshooting matrix.
To utilize these drivers effectively, the following software suite is standard: Research Download / Upgrade Download Tool
You are in ADB mode, not Download/BROM mode. Solution:
