I installed a flash ROM on the PC, it did not work, the phone does not want to connect, it does not come out of the Blackview logo, I already formatted it by boot but nothing is left by the name Blackview. What can I do, please help me?

email: thalesgc3@gmail.com

A serious error that is happening, I can not use netflix, in the playstore it appears that it is not compatible download via download but it has several errors, not to watch. What do I do??