OnePlus 7T alarm unlock pin

[letuanlx]

I used msm tool . Done . But not ok
My phone unlocked bootloader.
I Tried pass default 1234 0000 . Not ok
Change another sim. Not ok.

What can I do something ?

 

[letuanlx]

after i tried cmd : fastboot erase modemst1 & st1 . reboot
its passed sim network unlock pin ... but network not signal .

 

[letuanlx]

My imel is not null . But no signals. What can I do . Someone help me modemst1.img st2.img