The new firmware to update Galaxy S2 i777 with UCMD8 was recently released. The update fixes various bugs and comes with a lot of enhancements and of course the Jelly Bean tag. If you haven’t already updated your phone, this particular tutorial will guide you on how to that step-by-step. Please do not use the downloaded files for any other device as they are tailored to install jelly Bean on this device only. before you begin, you will need to ensure that you have the correct USB drivers installed and that your device is rooted. Moreover, please backup your data as there are chances of you losing it. Please ensure that the USB debugging mode is on and that you at least have 50% battery. If you are ready, please follow the tutorial below.