Looking at your blocks, you have
- for the mimetype value you only have
mp3instead ofdata: audio/3gpp(ordata: audio/mp3if you want to name your 3gp to mp3)
see my blocks below
I have just run a test aia project on the method without any issues. I can, make and save a sound recording to the ASD, convert a sound recording to base64, upload it to google drive as a file, download the file, and play it back. This is on an Android 12 device, using companion 2.62, and the latest version of KIO4_base64 extension.
BLOCKS
SCREEN
SCRIPT (note that I have a parameter for the folderID)
DRIVE

AIA
ulsound.aia (27.2 KB)
I split the process up into sections, with button actions and labels in order to observe progress.
I suggest you do something similar to debug your app, in order to identify where things are going wrong.
Note: the binary file (e.g. sound recording) will be converted to base64 at some point in any upload process used, it is just with this method you actual see it happening!
Also:


