Mi4c Totally Stucked

Jan 26, 2016
Hello guys i am new on forum.

I bought mi 4c in turkey. it was in miui 6. then i went home and updated it to miui7. with miui7 bootloader is locked. then i did the fastboot rom thing with china stable. Now my phone has a problem says cannot connect network. I put rom in it to update officially from system update part but it still says cannot connect. I just downloaded play store and other things but cant even log in to play store because of cannot connect and cant log in to mi account also.

I sent mail to xiaomi for opening my bootloader but i cant open it if i cant log in to mi account.
What am i going to do ?