Asus Eee Pad Transformer TF101 - Manual (Page 4)

ASUS Eee Pad 
4. Prepare a MicroSD card. Unzip the ASUS folder in the compressed
firmware file to the root directory of the MicroSD card.
5. With your Eee Pad turned ON, insert the MicroSD card into the MicroSD
card slot.
6. An exclamation mark
appears in the notification
area. Tap the mark.
7. A System Update File
Detected message appears.
Tap the exclamation mark
to start firmware update.
We recommend you to connect the power adapter to your Eee Pad
before firmware update.
8. Select the update file you download from the ASUS Support Site and tap
OK to continue.