Flashing Stock Jelly Bean 4.1.2 I decided to write this topic to help anyone interested in flashing firmware on their phone. Please read first before you do anything. Here the instructions to flash jelly bean using Odin on to the Samsung Galaxy Ace 2 GT-I8160 This is for STOCK JELLY BEAN only. Disclaimer: -Flashing firmware can brick your phone if done incorrectly. -I strongly advise you to wait for the kies update instead, as it is safe and advised. -I will decline any responsibility If things go wrong for you. - And I can only speak from experience. - If you are not comfortable or you don't understand the instructions. Than please ask about and do a research first before you do anything. -Remember that is better to be safe than to be sorry. ***Instructions*** First thing you need to do is: - Visit the Official Samsung.com website. Or your National official Samsung website. And download the latest version of "KIES" on your pc. Here the UK website link: Kies | SUPPORT | SAMSUNG UK - Run KIES and connect your phone to the pc. Let Kies install the Samsung drivers for your phone on your pc first, so you can use Odin. *Remember to make sure to close Kies completely before you use Odin. The link below takes you to my topic firmware were you can obtain the tools: "Samsung firmware" and "Odin": GT-I8160 Official Firmware - Android Forums 1- Back-up your phone. And turn "on" debugging mode option in phone settings. 2- Turn phone into download mode. (Home Button + volume down + Power button) And connect your phone to your pc. 4- Open Odin in your pc and insert the "PDA file". (Remember to "unzip" the zip folder before you use the file with Odin) And flash your phone. 5- Boot your phone and test if all is working... And job done. *** If for some reason after updating your phone you have less ram than the ideal 550 or 624mb ram and you want Jelly Bean with 624mb Ram. You can flash MB2/MB4 with the "PIT" file to obtain the 624mb ram.