I updated from 4.0.3 to beta 4 via local, but now I want to go back because of the battery drain problem. I tried several times via adb sideload to flash the zip but I keep getting the same error <cannot read 4.0.4.zip> over and over again. Even after installing the drivers, I got a little yellow exclamation triangle near the driver in device manager. Honestly I'm starting to give up, I think I wiped my phone more than 5 times in order to flash via sideload, only to get the same error continuously. as far as I know, I cannot go back to 4.0.3 via local from beta 4 right?
Please help...