4PDA : Community discussions regarding firmware cross-compatibility with other brands like Ergo or Skyline.
The indicator light should begin flashing, signaling the update has started. Do power off the device until the flashing pattern changes (usually rapid red/green). Where to Find Files and 8GB/16GB ROM. Installation Procedure
Use a tool like WinRAR to extract the .rar archive parts. Place the extracted firmware file (e.g., allupgrade_5522_sos.pkg ) directly into the root directory of the USB drive. Update Process: Power off the TV and unplug it from the wall. Insert the USB drive into the USB 1 port. and 8GB/16GB ROM. Installation Procedure
Quad-core ARM Cortex-A53 CPU, 1.5GB RAM, and 8GB/16GB ROM. Installation Procedure and 8GB/16GB ROM. Installation Procedure