Accessing bootloader

[Android Central Question]

im trying to instal twrp on my phone (zte blade v7 lite) and i cannot access the bootloader.Far left corner states im in 'meta mode'
any suggestions would be appreciated

 

[Rukbat]

I was going to write it all up, but https://www.getdroidtips.com/unlock-bootloader-zte/ has it all, with pictures.