how can I get oneplus 9 pro into edl mode while it's refusing to turn off? keep in mind that I can't use adb. but was able get fastboot devices command to work and I did not use any third party roms, didn't unlock the bootloader, and do not have...forum.xda-developers.com
Thanks a lot both of you for the help.Well you have a corrupted boot.img or you would not be trying to edl. Also you probably are holding down multiple buttons to power off to your phone and your either not remembering or forgot that these combination of buttons are booting you into other modes fastboot, recovery or system.
I am well aware of the situation, as I mentioned this is not my first rodeo nor my 10th, and it was not the button combination.
After the phone died EDL/fastboot worked normally and its now fixed.
A tip for anyone in the future, if you are stuck in a fastboot/crashdump/corrupt bootlood and cant access EDL letting the phone's battery die is the best way to go.
I tried switching boot slots, multiple fastboot commands, fastboot batch files that should force EDL, fastboot tools that should force EDL and everything under the sun.
Other than the generic fastboot commands nothing worked and learned that Android when an OTA fails keeps trying to boot from either slots and will protect the system from a full wipe until the battery dies.