I agree that 40 minutes sounds a bit too long. My initial flash of the full Nov-22 zip took me about 15-20 minutes. The incremental zip file (each of Nov-24, Nov-27 and Dec-03) took less than 10 seconds to flash. Of course, rebooting took a few minutes as Android apparently recompiled all the existing apps, but nothing like 40 minutes.
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Okay, thanks. I will give the free version a try first. I want the LED to come on while the phone is charging. Hopefully Lightflow (free or paid) does that.