Losing wifi is a know issue. When you flash back to UCKH7, you have to do a wipe data/factory reset in 3e recovery to get wifi working again.Thanks for all the hard work on the odin one step, but I had a problem.
I just rec. the phone (sgh i777) from ebay that looked completely stock and running uckh6. Kies told me not eligable for update though and so I flashed to I777UCKH7-CL503881-No-BL via odin one step figuring that the stock kernal had been modified someway and needing to get to the point that Kies would give me the official ICS.
Everything went smoothly on flashing and the phone operates great except that the wifi is no longer working. It will turn on and scan but then turns itself off.
Also Kies no longer gives me the message that I cant upgrade...it now states that I have the latest firmware, LOL. I would really like to get the official ICS release on this thing, but at the very least I need to get wifi back.
Any help would be greatly appreciated.......
Kies won't upgrade you from UCKH7. You have to do an OTA update to UCKK6 first, then the kies update to ICS.
Or... you could just flash the stock rooted UCLE5 ICS firmware with Odin from here. Please read the OP thoroughly. You should do a wipe data/factory reset first before you flash the ICS firmware, since it is not recommended to do a wipe with the stock UCLE5 ICS kernel.