The error message “Threema backup datei ungltig” seems when making an attempt to revive a Threema backup on a unique gadget and signifies that the backup file is invalid or corrupted. This may happen on account of numerous causes, reminiscent of incomplete file switch, information corruption throughout switch, or incompatibility between the backup file and the gadget being restored.
To resolve this concern, it’s endorsed to strive the next steps:
