for Commtiva Z71, Apanda A60, Chinavision Excalibur, Cincinnati Bell Blaze, Gigabyte Gsmart G1305, Motorola XT502, Muchtel A1, Optimus Boston, Orange Boston, Spice Mi-300, Vibo A688 and Wellcom A88
1. PREPARE YOUR SELF : That do you really want to play with your android .....as this thing brings a lot of new options to you.....but on the other side it is dangerous too.You May BRICK your Phone.
2. Download & Install SUT ( Software Updater Tool ) On Your PC : Download
3. Download the Firetrap Jellybean 2.2.1 ROM : Firetrap Jellybean V2.2.1 + App2sd+Dalvik on phone
4. Extract the Zip File
5. Switch Off Your Phone & restart it in Download Mode : Volume Key Up + Power + Red Button
6. Connect Your Phone To PC
7. Run SUT and Browse for the Extracted Nbo File.
8. Click Next and Select Wipe User Data.
9. Again Click Next now it should say FLASHING ROM
10. It should take Around 220 Sec...CAUTION: DO NOT DISCONNECT INBETWEEN
11. Now your phone will rebbot in Recovery Mode
12. In Recovery Press the Reboot Now Option
AND VOILA !!!!!!
Thanks To Firetrap from Androidpt