I done the upgrade from a14 to a15 successfully as I reported here : Feedback for v3.0.4 - #48 by Mamalo
adb sideload with OTA package downloaded as described below worked perfectly without issues during the update.
I done the upgrade from a14 to a15 successfully as I reported here : Feedback for v3.0.4 - #48 by Mamalo
adb sideload with OTA package downloaded as described below worked perfectly without issues during the update.