2011-11-06 02:25 PM
Hi Giri, I believe you are aware that there is no official upgrade for that. However you may want to check out threads from 'More Like This' (on the right side of this page) or do a search in this Forum.
Upgrading Android OS the unofficial way will void your warranty, but my guess is you wouldn't bother (probably warranty has expired). Just be careful and patient when performing this task. Good luck.