A flash file, also known as a firmware file, is a type of software that controls the operation of a mobile phone. It contains the operating system, user interface, and other essential components that enable the phone to function properly. When a phone's flash file is corrupted or outdated, it can cause a range of problems, including freezing, crashing, and failure to boot.

: Once the process finishes (a green checkmark usually appears), disconnect the phone and power it on. The device will reboot automatically. Alternative: Quick Software Fixes If you want to avoid flashing, try these soft fixes first: Nokia 105 User Guide: Restore factory settings - HMD

Note: Firmware availability changes frequently. Always check for the latest version.