Hello, I would like to know if you can help me with the downgrade issue, I have been facing some problems of this type when trying to use some FIRM FINDER firmwares, is there any functional solution for downgrading, and a second question, is there a possibility of telling me the programmer of the LZPLAY application, I believe it is a Chinese one, I would like to maybe work on the evolution of LZPLAY to EMUI 12, thank you in advance.

Hello, I would like to know if you can help me with the downgrade issue, I have been facing some problems of this type when trying to use some FIRM FINDER firmwares, is there any functional solution for downgrading, and a second question, is there a possibility of telling me the programmer of the LZPLAY application, I believe it is a Chinese one, I would like to maybe work on the evolution of LZPLAY to EMUI 12, thank you in advance.
