fastboot error commands - General Questions and Answers

plse help, fastboot oem get_unlock_data this command giving error FAILED(remote:unknown command), i have moto c plus, need to unlock bootloader, how i can get my device id from fastboot, any other commands is their? for get device id from fastboot, fastboot oem get_unlock_data this command not working for me, communication bwt pc&mobile is well, but giving error for getting unlock data,....... any idea???

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Fastboot oem problem

After i have done the fast oem unlcok it unlocks, but when im trying to do ADB reboot bootloader it sais, device not found
Because you are issuing a adb command while in fastboot.
There is a reason the command to unlock is fastboot oem unlock and not adb oem unlock bootloader

unlocking bootloader

hey please help i am unable to unlock boot loader of my coolpad note 5 which has snapdragon 617 soc, no unlock code type help or instruction on official forum and no help there because all command returns as unknown command ,
i tried many command except these two command all return unknown command ,
fastboot devices works shows device no
fast getvar all works showing something
i checked all driver installed properly and pc showing it on device manager as fastboot device even fastboot recognized it as a fastboot devices, also i allow oem unlocking on developer setting and enabled usb debugging
after this all command like
fastboot oem unlock
fastboot oem unlock-go
fastboot boot
fastboot reboot
fastboot flashing unlock
fastboot oem device-info
fastboot flash
all and more i found i net returns unknown command remote
i tried with vendor id but no result
i checked fastboot getvar all returns its kernal as lk
so do little kernel has problem , i have its firmware package but not found aboot.c
please help its unrooted
attached error command screenshot in zip

getting error FAILED(remote:unknown command) on xt1721

i tried, every procedure for unlock bootloader on moto c pus. giving error "FAILED(remote:unknown commond)"in adb terminal commond "fastboot oem get_unlock_data"
adb &USB drivers are well, detecting the device fastboot serial number, "fastboot devices, fastboot reboot, adb devices, adb reboot bootloader" ....these commands are working but when i tried "fastboot oem get_unlock_data" for getting my device id , giving error "FAILED(remote:unknown commond)"......
please help me how to solve this!!!!

While Unlocking Bootloader, Fastboot Commands are stuck on "waiting for device"

While Unlocking Bootloader, Fastboot Commands are stuck on "waiting for device"
I have a 6045I version Idol 3 and I've installed the 15 second adb fastboot setup. When I type the command "adb devices" I get the id number and rebooting to bootloader works fine. Once I reboot, the command fastboot -i 0x1bbb devices shows the id number. The problem is when I try either fastboot flashing unlock or fastboot oem unlock both result in the cmd saying "waiting for device". I don't know how to fix this but I've done some research and I think it might have something to do with drivers or maybe alcatel blocked fastboot after a certain update? All I want to do is flash the lineage rom to get android 7.1 nougat so I would really appreciate any help.

Question Bootloader Unlock Error (Unable to open fastboot HAL)

Hello,
I'm trying to bootloader unlock this phone and have encountered the above error. I am using the OEM cable, and basic ADB commands work (adb reboot ______, etc.) The command fastboot oem device-info yields the same error message. I'm thinking I don't have the right USB drivers but the phone is so new I can't find anything for it.
Do you guys have any ideas?
Boyo Synth II said:
Hello,
I'm trying to bootloader unlock this phone and have encountered the above error. I am using the OEM cable, and basic ADB commands work (adb reboot ______, etc.) The command fastboot oem device-info yields the same error message. I'm thinking I don't have the right USB drivers but the phone is so new I can't find anything for it.
Do you guys have any ideas?
Click to expand...
Click to collapse
Getting the same error, OnePlus 10 Pro NE2213
dev options enabled, OEM unlock checked, debugging enabled
device is seen in 'fastboot devices':
c:\adb>fastboot devices
84250aa3 fastboot
c:\adb>fastboot oem unlock
...
FAILED (remote: Unable to open fastboot HAL)
finished. total time: 0.002s
same happens with me.....IQOO Neo 6...
C:\Users\*****\Desktop\A13\platform-tools>fastboot oem unlock
FAILED (remote: 'Unable to open fastboot HAL')
fastboot: error: Command failed
Under developer options set the OEM unlocking ON

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