(adsbygoogle = window.adsbygoogle || []).push({}); i bought a slim 320 a month ago and was surprised to have 3.41 preinstalled:rolleyes: i updated to 3.50 and as i received the amazebreak, i downgraded it successfully to 3.41. I'm trying to downgrade it to v3.15 but the green led light starts blinking after sometime in the service mode and it never stops. i see the log.txt info saying "failuremanufacturing update failure" at the last. i tried with a bunch of different fw: 3.21(failed), 3.30(failed) and 3.40(success)!. this proves that we can downgrade from the factory preinstalled version(3.41). Where am i wrong? i'd b happy to know if i can get to 3.15