Originally Posted by RumbleBeeAL

I've tested the following MicroSD cards in my 4PX:

1. 8GB HC, Sony - formatted as FAT32 - Successful
2. 16GB HC, SanDisk - formatted as FAT32 - Successful
2. 32GB HC I, SanDisk - formatted as FAT32 - Successful

I tested Screen Captures and Telemetry Logging to all three cards without issue. Both files are created and have contents when seen on my PC. Which leads to my next question. Page 30 of the User Guide refers to a "telemeter log converter" app that would be available from the Futaba home page. Has anyone found this application?

Telemetry Logging is enabled by configuring a programmable button on the 4PX. Once you select a button such as PS1, you will likely also want to set the type to "Alt." otherwise you must hold the button to log. If you let go, the file is saved. The Alt. mode allows the button to function in a more desirable fashion for this feature.

Note - I have not attempted updates as that process has already been completed on my 4PX. However, the 8GB card worked fine for updating.