i am using MSM tool to unbrick my oneplus 8 but getting an eroor in msm tool that is “PARAM PRELOAD FAILED”
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U must put it in edl mode by pressing with the phone turned off press volume up and down while plugging in the usb type c cable that will put you in edl mode then flash the stock rom
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also if you can boot into fastboot, just type the command
fastboot reboot edl
then when connected you can press start on the MSM Tool