: Ensure your device is not powered off during the update process, as this can lead to hardware failure or "brick" the receiver. iSTAR Firmware Update V1.5.2 - NCTech Help Center
: For Solid brand set-top boxes, you can find official firmware and software upgrades directly from the SOLID Set-Top Box Software Upgrades page. Note that they often host their latest files on Google Drive for easier downloading. Download Loader 2500hd plus rar
: On other models, power on the device and navigate to Settings > General Settings > Maintenance and select "Upgrade firmware" . : Ensure your device is not powered off
: Use a tool like WinRAR to extract the contents of your .rar file to a blank SD card or USB drive . Download Loader 2500hd plus rar