[Q] Help me with flashing back the D800 Rom topic

Hi, guys,

I met a problem. I have a LG-D800. At the beginning, I accidentally flash a F320S rom ( CloudyG2 3.0)on my phone. Then, my phone only has fastboot mode, no adb, no download, no recovery...
After some work, my d800 has download mode now. However, when I try to flash TOT back my phone(using d800 dll and d800 tot), the flash tool always said, "device model is different'. I think the tool consider my phone is F320S. I try using LGUP_8974.dll (someone said it is a general dll), the flashtool doesn't work too.

I have no idea to get my phone back. Who can help me ?

Thanks.