Hi
I am using the following WiFi cards in my M240 and have just upgraded the firmware in each of the cards,
Just wanted to share this information to other M240 users with the Toshiba FlashAir WiFi cards.
Toshiba FlashAir W-04
https://jp.toshiba-memory.com/ww/support/download/flashair/w04/update02.htm
Toshiba FlashAir W-03
https://www.toshiba.co.jp/p-media/english/download/wl/updatetool02_w03.htm
Please make sure you read the accompanying User Manual PDFs, as the process has important steps for a successful firmware upgrade.