"dl 1425bin upd" likely refers to a 1425-bin update file for a download (dl)
Downloading ... [####################] 100% Verifying checksum... OK Erasing flash... OK Programming... OK Update complete. dl 1425bin upd
: Before performing any update, especially if it's for a device or critical software, back up your data. Updates can sometimes lead to unexpected data loss. "dl 1425bin upd" likely refers to a 1425-bin