If you flash a system of a new version and there's something wrong with your phone after it, you can flash it to other version according to the instruction below: 1. enter android system recovery, then, choose the option: "flash zip from sdcard". 2. all the zip files in the sd card are all listed. find the file named "update.zip".. There is another way to using adb and fastboot to flash the firmware update file.if you have an update zip file follow this guide to flash using adb and fastboot–>> how to install ota firmware updates using adb fastboot commands. Flash update via adb: 1. make sure you have adb and fastboot setup on your pc, and download the update file, and rename it to ‘update.zip’ for ease. adb reboot recovery. 2. while in recovery mode, you are now to select on the phone the option which reads ‘apply sideload from fastboot’, or any similar option. adb sideload ota.zip. 3..
Locate the rom .zip file you wish to flash. confirm the flash by following the on-screen instructions (ie: pressing the trackball, pressing the call button, etc.) if no errors arise during the flashing process then the rom flash was successful. reboot the device.. Xda developers was founded by developers, for developers. it is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality.. If the rom is downloaded via pc - paste it to root directory of your device's internal storage and rename is to " update.zip ". open updater app. click on the menu button top right " three dots button " click " choose update package " browse to the update.zip you pasted on internal storage; it will then ask to reboot to flash update the rom ..