Texas Instruments (TI) ultimately failed to stand behind their misguided claim that calculator hobbyists violated copyright law by having public, online discussions about techniques to get more functionality from TI calculators. Yet the company continues to dig itself into new holes by issuing more improper take-down letters...

In fact, TI has sent an identical take-down demand to Mr. Smith's university complaining about the same OS keys having been posted on our client's student webpage, and demanding that the school take the materials down from that URL. Today, Mr. Smith filed a DMCA Section 512 counternotice to continue the fight.