adb from AFT dont reboot EDL, only reboot into system, with command adb reboot edl. And adb reboot-edl dont work. Till now I cant reboot into EDL with any fastboot or adb, modified or not.Finally - seems it can to be loaded using AFT. Get AFT 5.1.1 and video how to start and load here https://drive.google.com/file/d/1tmcu0G0yJC98FlglKAxSTADs9MLK9IY1/view
Before running AFT - install vivo usb driver(from Driver folder of AFT bundle)
adb.exe from AFT bundle can recognize "adb reboot edl" command. So you can use it to enter 9008 mode.
I think that Vivo lock all possibilities


