I'm trying to determine the model of an ASUS Transformer tablet.
In Settings -> About, I know its a TF-101 (I knew this one I bought it a few years ago). But that's all it provides under Android 4.0.3 (shown below).
However, I cannot determine if its an A20, B10, etc. According to How to identify hardware versions?, its encoded in the serial number, and its on a sticker attached to the tablet. Unfortunately, even with my glasses, I cannot seem to find it.
How does one determine the serial number for an ASUS TF-101 tablet?