Just after NVidia held a press conference at CES they announced the news Transformer Prime owners everywhere were waiting for “android 4.0 will be releases via an OTA update”. Now this got many excited the forum on XDA began to blow up with new threads and comments about the update. Nonetheless the update did come, well for some. This is where the trouble begins. Asus rolled out the OTA and some updated to 4.0 fine like myself, but some not so much. Some tablets had a “unknown serial number” issue, and no serial number means no update. But fear not, Gary Key from ASUS hopped on XDA and made a thread for fixing the serial number issue. Gary had this to say:
Thank you to the users I reached out to for their contact information. You should hear from our engineering or technical support staff shortly to verify a few settings and to try another OTA update sequence. For those I did not contact yet, we might expand the group for additional testing. I have read all the messages so please do not be upset if we have not contacted you yet. We are very close to finalizing a fix for this problem but first we will have to confirm your unit setup.
So head over to XDA and you can learn how to fix this issue if you are waiting for the update.