---- is running side to side

Hi all !!
I am new to forum so if I make mistake, please forgive me!!!

I messed up my 2700A so I have to flashed factory bin back (This step is OK
but the screen look different from my old screen and I could not enter the new key in because I don't see the second bin location at parental control)

So I went ahead flashed b75 before I try new bin 205 that when the ----keeps running none stop.

I could go back and re-flash factory bin but I can't do anything eles after that...What did I do wrong...? Please help and Thanks a mil

Here's all the information we have on that at the moment. I think it's what you've already done but give it a read anyway and please get back to us. Hope it helps.