I've had no luck manually updating the original Scribe firmware to 5.18.1 . I'm using the latest RC for Sequoia. I have tried:
- rebooting both devices
- Send to Kindle
- Kindle USB File manager
- different cables (that I've tested for transfer and power)
- OpenMTP
- Android File Transfer
- keeping Calibre open
- keeping Calibre from running.
I have no problem connecting my oasis, it mounts and does it's thing.
I am able to 'see' the Kindle using Disk Utility but a partition is not mounted. Any ideas?