: Fixing sudden reboots or app crashes that occur when system memory is insufficient. User Interface Glitches
Before we start downloading files, it is vital to understand what "firmware" actually means. Think of the firmware as the operating system's skeleton. It is the low-level software that controls the processor, memory, radio (cellular/Wi-Fi), and battery management.
Open the Upgrade Tool and click on the "Load Packet" (gear icon). Select the .pac firmware file you downloaded in Step 1. The tool will take a moment to verify and load the system files. 4. Connect the Device