Can't save anything to sd card
Since Android 4.4.0 Kitkat, Google has disabled the write permission by default for security measures.

Since the HTC desire 320 is shipped with Android OS, v4.4.2 (KitKat), you can't write to the SD-card by default.

If you want to get the write permission back you must root your device and use an app such as SDFix. You also can manually edit the permission list when you are rooted, but it will be reset every power cycle.