Lenovo A3500-hv Custom Rom -

: If SP Flash Tool doesn't recognize your device, check your Windows Device Manager to ensure the VCOM driver isn't showing a yellow exclamation mark. Forgot unlock code - Android tablet - Lenovo Support US

Install Kernel Auditor. Under CPU settings, set the governor to Hotplug (if available) or Ondemand . Disable one core at low battery. lenovo a3500-hv custom rom