A week ago we reported on those official support threads maintained by ASUS Technical Marketing Manager Gary Key, through which ASUS hoped to gain additional insight into some of the issues that owners of the Transformer Prime were experiencing. The fixes that were promised are now being worked on, and are expected to arrive in early February.
For the random system lockups (forum thread) that some experienced after updating the tablet to Android 4.0 Ice Cream Sandwich, ASUS is working on “two different solutions”. Should you be “comfortable with flashing a new ROM image” and willing “to take the time to complete each process”, however, you can go ahead and try to one of those solutions right now:
One option to try is to revert back to the last Honeycomb image through the manual update process, set the unit power mode to balanced performance and screen brightness manually to 50%, and then manually update to the latest ICS build using these instructions – http://service.asus.com/TF201_fwupdate. You will need a fully charged battery and have the system plugged into AC power. This worked on a couple of returned units but not on all units.
Same goes for the BT/WiFi fallout issue (forum thread), which would lead to the Bluetooth signal degrading when streaming media via WiFi, except that there’s no manual workaround available in case you don’t want to wait for the official fix sometime next month.
Still not completely solved, though, is the “serial number not found” issue (forum thread). There is an experimental fix available that may or may not work; in the latter case, you should contact ASUS with further information, following the instructions in the linked forum thread._________