"unable to open fastboot HAL" - General Questions and Answers

Hello,
I'm trying to unlock the bootloader on my Oppo A 15 with ColorOS 7.
The developper mode, debugger usb and oem unlock are enabled.
I use the last adb fastboot platform tools.
I reboot my phone on recovery mode (there's no fastboot, or download mode or whatever), I then have a very short menu on my phone.
On my computer, fastboot detect the fastboot device but then, unlocking bootloader doesn't work.
Fastboot fastboot flashing unlock return the message "unable to open fastboot HAL"
There's not much I can do as a matter of fact. I tried several of the command In Here and most don't work.
The command "fastboot getvar all" gave me a sh...load of informations, but I don't know what I can do with it.
Any help?

Related

xt926 stuck in ap fastboot "sticky bit factory_fastboot

i had to sbf my phoe and now its stuck in the boot loader on each power up i can enter the boot menu and get to lock screen, but the bootloader msg is very annoying i used the rsd script generator and used unerversal i tried others by taking out the gpt and tz but same results
A quick search will get you the answer on how to clear the sticky bit error.
Sent from my HTC6525LVW using Tapatalk
i have the same problem and i didnt find anyway to fixit
Sticky Bit Fastboot
and here is the fix
First you want to download this zip file extract the file to your computer so it should read C:\Android
Next click on it once so it's selected hold left shift and right click and click on "open command window here"
Now plug in you phone and boot it up normally, then make sure usb debugging is enabled.
now in the command window type "adb devices" (this makes sure your device is hooked up and ready to be fixed)
List of commands to type in. ( in order)
1. adb reboot bootloader
2.fastboot oem fb_mode_set
3.fastboot oem fb_mode_clear
3.fastboot erase userdata
4.fastboot erase cache
5.fastboot reboot
download all the files from here
http://www.2shared.com/file/M1n_-B0-/all.html
use the first 3 command only like what i did so you wont lose your data
my phone is stuck on the boot loop. i think i cant follow this fix. do you have any other fix? thanks

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

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.

Can't unlock asus me302kl in fastboot mode

My me302kl can enter the fastboot mode, but it can't be unlock with any fastboot command!
I have already tried "fastboot oem unlock" and "fastboot flashing unlock", but it always showed the Failed unknown command!
Because I can't enter the main system, I can't install and use the official unlock bootloader apk.
Could any one help?

-Stuck Fastboot and Locked Bootlader Problem and Solution-

So, Iwas using Havoc Os 3.8 on my realme 5i, but I wanted to lock bootloader again, then I entered fastboot mode and locked bootloader, but I stucked in fastboot mode, It looped. Could not enter recovery or system. Only fastboot mode, because bootloader is locked I couldnt flash anything. I tried fastboot flashing unlock command but it did not work.
But solution was very easy, fastboot was not actually fastboot, everytime I power off device and power up there was not fastboot writing and robot icon, just directly fastboot itself. So actually it is fake fastboot, you just need to use volume buttons and select reboot to bootloader option, once device reboot you will see now fastboot- robot icon then fastboot itself, now you can unlock device with "fastboot flashing unlock_critical" command.
First, power off. Then wait for couple of minutes then start fastboot again.

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