assets to read-only doesn’t actually protect the file (or the folder). The Kindle is formatted as a FAT32 partition, so setting. But when I turn wireless back on, I get ads. If I leave wireless off (it’s called “Airplane Mode” now), as I usually do to conserve battery life, the ads stay away. The ads came back, but the procedure below worked to remove them again. Update (): Recently Amazon updated the firmware on my Kindle to v4.1. Check out Idle Feet Do the Devil’s Work, Overthinking the Marathon, Chasing the Runner’s High, R is for Running, Simple Rhythms: Poetry for Runners, and the Boston Marathon bombing benefit anthology, The 27th Mile. While you’re here… My original justification for buying a Kindle was so I could test my ebooks. If you know of one, post it in the comments! Stay tuned to see whether we can find a new method. Update – the latest update to my e-ink Kindle breaks this process. Octoin tech tagged disable special offers / kindle