Sorry to bump an old thread but I'm also having this issue.
I was rooted (stock) and performed a factory reset due to issues staying connected with towers.
I guess I dumbly updated my firmware while in the process of getting my phone back in order.
So I'm running 4.4.2 (KK) with a build number of KOT49I.D95920s (20s). Device is the T-Mobile D959
I know I need to get my firmware back to 10c in order to be able to root again but the problem is I cannot get into download mode (probably because of the firmware update.)
I have no recovery mode. I cannot use Freedom Flex to install one either because the phone is not rooted.
I can't use IORoot (I get to the part where I need to toggle the download mode and I can never proceed), towelroot isn't supported,
and stump isn't supported (nor does it offer me a brute force method; again probably due to my firmware version.)
I tried LG Root (http://forum.xda-developers.com/andr...vices-t3049772
) but can't get into download mode.
I have the valid KDZ file but since I can't get into download mode, I can't use the LG Flash tool (2014 or 1.0.54). I also have a valid .dll file.
I have not found a tot file.
I don't care what android version I'm using, I just want to have a recovery and root working again.
If anyone can please help, I would greatly appreciate it. I've been tearing my hair out.