I suspected it must be easy to mount the microSD card as a "hard drive" from Linux. I didn't find any devices with "usb" in the name the first time I connected it, so I didn't pursue it further. Today, I had
/var/log/messages tailed and noticed an
sr1 device message when I attached my phone. Sure enough,
gave me access.
$ sudo mkdir /media/android
$ sudo mount /dev/sr1 /media/android
After poking around a bit, I noticed
Ah hah! The missing manual. I figured out most of the details already, but the manual did provide me one useful piece of information---how to upgrade. See sections 12.8 and 12.9. Note that I'm referring to the Huawei Ascend manual...