: Firmware versions vary by carrier (e.g., K500UM10j, K500UM20a). You can check your current version via Settings > System > About phone > Software info [4]. How to Update or Repair Firmware
: If you cannot access the OS, you can enter recovery mode to perform a factory reset by holding Power + Volume Down , then releasing and re-pressing Power when the LG logo appears. lm-k500um firmware
Tap to view your Android version and Software Version (e.g., K500UM10j). : Firmware versions vary by carrier (e