And this is what it shows me after that code...
Mark@MacBook-Air ~ % edl r boot boot.img --memory=emmc
Capstone library is missing (optional).
Keystone library is missing (optional).
Qualcomm Sahara / Firehose Client V3.53 (c) B.Kerler 2018-2021.
main - Trying with no loader given ...
main - Waiting for the device
main - Device detected

main - Mode detected: firehose
firehose
firehose - [LIB]: Couldn't detect MaxPayloadSizeFromTargetinBytes
firehose
firehose - [LIB]: Couldn't detect TargetName
firehose - TargetName=Unknown
firehose - MemoryName=eMMC
firehose - Version=1
firehose_client - Supported functions:
-----------------
program,read,nop,patch,configure,setbootablestorag edrive,erase,power,firmwarewrite,getstorageinfo,be nchmark,emmc,ufs,fixgpt,getsha256digest
firehose_client
firehose_client - [LIB]: Error: Couldn't detect partition: boot
Available partitions: