no they work just fine i use to have them in my cell phone but i never used them then i got a new cell phone that don't take them so i cleaned them off now i don't need them so i thought i would share
that's what i thought to there is no need to throw it away if someone else can use it and keep it out of landfills i just don't like when people ask if it works i would never list anything that did not work if it did not work i would put that in the description but usually if it don't work i get rid of it