If you are unable to connect your USB flash drive to the 4K1, here are some tips.

1. Your 4K1 will read USB flash drives of 32 GB or lower.

2. It is recommended that the flash drive be formatted to FAT32 for the best results.

3. Have your files in the root of your USB flash drive instead of in folders, so that the projector will read the files correctly.

4. Make sure the files you would like to play on the projector are supported by the 4K1. Supported file formats for the 4K1 are: MP3 / WMA / OGG / WAV / JPG / AVI / BMP / GIF

5. Once you have your USB flash drive connected, go to the corresponding category to play your file. For example, if you want to play a movie file, you would select the Videos option.

6. Please note that on your 4K1, the Media Player has a 1080P max resolution. In other words, 4K resolution media cannot be read by the Media Player.

7. If you have done these steps and there is still no connectivity, please contact AAXA Technical Support either by email at info@aaxatech.com or by phone at (714) 957-1999 between 9AM and 4 PM PST for further assistance.