Last week we saw Symbian Belle being put on an E6 but could't find the clue whether it was done through a Software Update from Nokia or was just another leaked Symbian Belle. The answer is here, Bobby (Kenya) did the trick with his E6 using leaked Symbian Belle files. Some guys on Dailymobile forum are claiming that Symbian Belle ver.111.030.607 have been leaked for Nokia E6.
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Leaked Belle For Nokia E6
Please Note : Firmware provided may damage your device and can void warranty , install it on your own risk or wait until the official Belle arrives in 2012.