Update & Downgrade Firmware Manually

To manually update or downgrade the AIO-5 Lite / Play firmware using an SD card, follow these steps:

1. Insert the SD card into the AIO-5 and format it (Settings > Storage > Format SD card).
   
2. Insert the SD card into your computer and copy the firmware file (SigmastarUpgradeSD.bin) to the root directory. Do NOT change the file name.
   
3. With the device powered off, insert the SD card into the AIO-5 Lite.
   
4. Power on the device - it will automatically enter the upgrade mode. Wait for the update to complete (around 2 minutes). Do not power off during the process.

Download the firmware package

If your AIO-5 device can't recognize the SD card, and the device won't boot up to format it, here's a workaround: Try formatting your SD card to the FAT32 file system, which is compatible with the AIO-5 Lite. 

For Windows PC:

Use a third party tool like rufus 

For Mac:

Open Disk Utility, then click your SD card > Erase > Format > MS-DOS (FAT) > Erase

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