Press and hold Volume Down + Power, until the message appears on-screen saying “Press Vol. Up to enter RCK (5s)”. Then, press Volume Up, after which the Jelly Bean update will start installing. Wait for the update to finish installing, after which the tablet will reboot and boot up into the official Jelly Bean firmware.51. Android 4.1 (Jelly Bean) was announced at Google I|O 2012 on June 27, 2012. (You can review the high level changes in Android 4.1 at the official Android Developer's site.) Of course, not all devices will get this update right away and others won't get it at all. Each manufacturer and carrier often choose to add their custom modifications Samsung Galaxy S - i9000 - tutorial to install any Android Jelly Bean ROM. Read full description!Files you need:- Odin flasher http://forum.xda-developers.
Google announced Android 4.1 Jelly Bean back in June and released it for the unlocked GSM Galaxy Nexus a few weeks later, but Verizon's version has remained stuck on Ice Cream Sandwich. However
Step 1. Take the memory card from the device, and use a card reader to connect it. Do not use USB cables to avoid compatibility issues. In case, you do not have a card reader, then USB can be used, but however it is not recommended. Step 2. Use the link CM10.1 Android 4.2.2 Samsung Galaxy Ace Duos S6802 downlaod. Zip and start downloading. Step 3..