Hi Rex Peters,
Even if this is a new thread we still need the correct .DAT file in order to diagnose further as said in your other thread ... The .DAT in question is FLY088.DAT
Here's how to find it ...
LOG FILE RETRIEVAL :
Mobile device DAT files (DJI GO 4 & DJI Fly)
The DAT file naming convention, based on the date and time of the start of the file, is: YY-MM-DD-hr-min-sec_FLYXXX.DAT., where XXX is the flight recorder file index from the HOME_dataRecorderFileIndex field in the txt log.
These are retrieved by the same method as the TXT logs. Under both iOS and Android they are in a subfolder, MCDatFlightRecords, in the folder that contains the TXT logs. In some cases, for reasons not fully explained but possibly mobile-device hardware related, and most often under Android, DAT files are not created and that folder is empty. Uninstalling and reinstalling the app sometimes fixes that. One user also found that the process required manual deletion of the app folder (apparently not deleted automatically in the uninstall process) before reinstalling the app.