The relevant part of the article is: > After every 10 failed attempts, the chips need to be > removed the phone, reflashed, and reinserted back into > th

The relevant part of the article is: > After every 10 failed attempts, the chips need to be > removed the phone, reflashed, and reinserted back into > the phone. Then the phone needs to be rebooted. > For a 4-digit passcode, this process will need to be > repeated a thousand times. The article isn't saying you'll need to guess 1000 times, it's saying "this process" needs to be repeated 1000 times. What is "this process"? It's making 10 guesses, reflash, reboot. Thus the original point starting this thread that "10^4 is not 1000" is based on a misunderstanding since it's making 10 guesses that you repeat 1000 times. On top of that, it's not parallelism either since you need the specific CPU from the phone (and maybe the LTE baseband chip) to perform each attempt, which cannot be done in parallel. This is 10,000 attempts, one-by-one, with a reflash and reboot every 10 attempts.