Is there a way to backup custom equalizer settings and FM radio presets?
Try copying SYS_CONF.SYS file to your computer. Its found in MSC mode on the Root folder.
Diconnect the device.
Change the settings.
Place the SYS_CONF.SYS back on the device.
OK with a bit of a Hack you can accomplish this.
First, Backup is easy.
Connect your device to the PC in MSC mode.
Copy the file SYS_CONF.SYS to your computer where you want to save the settings.
Next, it takes a trick to force the Clip to Restore to this setting.
Disconnect the clip and change the settings, then connect to the computer in MSC mode.
Copy the saved SYS_CONF.SYS to the devices root folder (Overwrite the other one).
After all Writing is completed, you will need to Force the Clip to power off, otherwise it will overwrite the settings file at disconnection.
To do this, Press and Hold the Power switch up (while connected to USB and not Writing!) for about 10 seconds.
When the Display shuts off, unplug the device.
Next power the device up and it will apply the settings from the restored SYS_CONF.SYS file.