Originally posted by: Tozmo
someone did try, i forget which forum, and it didn't work
Yes, but did that person try upgrading the 451s to an 851S, or did he or she try upgrading the 451s to an 811s? If it was the later (451s to 811s) then perhaps that was the problem as it's said that the 451 and 851 use slightly different hardware than the 411 and 811. As far as I know this is the first time an 851S firmware has been made available for download from liteons website. Before this I don't believe any firmware was available for download for either the 451 or 851. The only firmwares available were 411/811 firmwares. So perhaps no one has had a chance yet to try flashing the 451 to an 851.
Of course, if it even is possible. It will likely involve more than simply flashing the 851 firmware into a 451. It may involve modifying the eeprom content and using Ltnflash, as modifying a 401 into a 411 did and it may be very risky to try and may not work at all. So, I'm defintely not recommending anyone should try this, but it's kinda interesting none the less.