Dear old professional friends, the 2019 macbookpro16 asks you to help solve the problem, thank you

[wuxiaohong11]

Problem description: After the EFI entered windows10 by system decoy, I found that both IGPU and NGPU came out. However, after the GPU switch was switched and the computer was restarted, only NGPU was available. I obviously switched IGPU

Second problem, if you enter the system through EFI without switching GPU, restart the system again and use rEFInd to enter the system, there will be two situations: first, blue screen; second, there may only be NGPU

If anyone can help me solve the problem and make my 1920 macbook Pro windows use IGPU successfully, and there is no problem,I'll give him the money, Contact email([email protected]).