Database Develop

trouble with bootloader unlock

Hello everyone, I'm trying to unlock my bootloader but I have hit a roadblock and cannot seem to find anything that helps.
The part where i am stuck at is that when i enter "fastboot.exe -i 0x0fce getvar version" all i get is "waiting for device" infinitely.
I know the phone is in fastboot mode because the blue light is on
It seems my pc isn't recognizing my phone when it's in fastboot mode. I can see my phone in windows device manager as "S1 boot fastboot" but when i try to update the drivers manually using the drivers provided by sony, i just get an update failed screen.
any help would be much appreciated, i'm sure it's something dumb that i did, but i just can't figure out what.

KlamKhowder said:
Hello everyone, I'm trying to unlock my bootloader but I have hit a roadblock and cannot seem to find anything that helps.
The part where i am stuck at is that when i enter "fastboot.exe -i 0x0fce getvar version" all i get is "waiting for device" infinitely.
I know the phone is in fastboot mode because the blue light is on
It seems my pc isn't recognizing my phone when it's in fastboot mode. I can see my phone in windows device manager as "S1 boot fastboot" but when i try to update the drivers manually using the drivers provided by sony, i just get an update failed screen.
any help would be much appreciated, i'm sure it's something dumb that i did, but i just can't figure out what.
Click to expand...
Click to collapse
unlock it using flash tool, just press unlock wait and enter the code.. done

KlamKhowder said:
Hello everyone, I'm trying to unlock my bootloader but I have hit a roadblock and cannot seem to find anything that helps.
The part where i am stuck at is that when i enter "fastboot.exe -i 0x0fce getvar version" all i get is "waiting for device" infinitely.
I know the phone is in fastboot mode because the blue light is on
It seems my pc isn't recognizing my phone when it's in fastboot mode. I can see my phone in windows device manager as "S1 boot fastboot" but when i try to update the drivers manually using the drivers provided by sony, i just get an update failed screen.
any help would be much appreciated, i'm sure it's something dumb that i did, but i just can't figure out what.
Click to expand...
Click to collapse
try using different usb cable/ different port.

Had same problem....some driver was missing
Sent from my C5503 using xda app-developers app

I've finally gotten flash tool to work, however now it gives me an error saying that my device cannot be officially unlocked,
EDIT: i'm pretty sure i've unlocked the bootloader now, as flashtool had me enter an unlock code and my device has had all of its data reset.
however my issues continue as now flashtool utterly refuses to pick up my device. I have re-installed all drivers, flashtool, etc but still nothing.

sometimes it may have conflicts when flashtool and other tools use their own instance of adb or fastboot. I think the best thing to do now is reinstalling regular drivers normally. don't forget to enable usb debugging...
this may be useful :
Code:
[I]ADB_PATH[/I]\adb kill-server
exit
create a text file, paste this code then save it as ADB - Kill.cmd

Cant go in to Fastboot mode ( want to root and twrp )

I have a G4 h811
it respond to ADB commands but not to fastboot commands
i get waiting for device message
so i tried power plus volume up
nothing...
power plus volume down
nothing...
if i type adb devices command
i can see my h811 as a valid device so adb works
but
the only thing that kind of works for the fastboot is to get in to adb and send this command
adb reboot bootlader
phone reboots and get the LG life is good logo and on th etop left i get little fonts
that says
******************
Welcome to Fastboot mode for OEM bootlader unlock
* Quick guidance
1) how to unlock : fastboot oem unlock
****************************
Si when i send the command
fastboot oem unlock
i get
<waiting for device>
nothing happens
and my phone wont turn off if i press the power button for more than 10 seconds
i need to remove battery to turn off
reinstall battery and boot up normally with the LG then tmobile logos
any clues ?
Max.

maxolini said:
I have a G4 h811
it respond to ADB commands but not to fastboot commands
i get waiting for device message
so i tried power plus volume up
nothing...
power plus volume down
nothing...
if i type adb devices command
i can see my h811 as a valid device so adb works
but
the only thing that kind of works for the fastboot is to get in to adb and send this command
adb reboot bootlader
phone reboots and get the LG life is good logo and on th etop left i get little fonts
that says
******************
Welcome to Fastboot mode for OEM bootlader unlock
* Quick guidance
1) how to unlock : fastboot oem unlock
****************************
Si when i send the command
fastboot oem unlock
i get
<waiting for device>
nothing happens
and my phone wont turn off if i press the power button for more than 10 seconds
i need to remove battery to turn off
reinstall battery and boot up normally with the LG then tmobile logos
any clues ?
Max.
Click to expand...
Click to collapse
Are you using a usb 2.0 or 3.0 port? You should use a 2.0 port.
Also try disabling windows 10 driver signature enforcement.

SOLVED..
I was on a win7 computer... never worked somehow
switched to a Win10
and worked like a charm...
twrp installed and rooted
using this guide
http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227

Nokia 7 Plus Bootloader unlock on OREO & ADB Fastboot Problem

hi fellows im fascing a problem,
Im unable to get my phone in adb or fastboot mode
when i plug my phone in and hit ADB Devices after allowing "Using USB to transfer files" it shows no device,
but if i dont allow it shows my devices.
again if i hit "Adb reboot-bootloader"
i restarts in bootloader but again here fastboot shows nothing.
any knid guy also let me know how to unlock bootloader on august patch after resolving this issue.

reinstalling windows solved my problem
Ibtisaam said:
hi fellows im fascing a problem,
Im unable to get my phone in adb or fastboot mode
when i plug my phone in and hit ADB Devices after allowing "Using USB to transfer files" it shows no device,
but if i dont allow it shows my devices.
again if i hit "Adb reboot-bootloader"
i restarts in bootloader but again here fastboot shows nothing.
any knid guy also let me know how to unlock bootloader on august patch after resolving this issue.
Click to expand...
Click to collapse
reinstalling windows solved my problem

phone corrupt and cant be trusted

i tried rooting my device but something went wrong after flashing the boot.img
now the device is stuck and i can only access fastboot.
i tried accessing the recovery but i get the same error msg.
i tried flashing every recovery img that exist for the red magic 3 but with no success

Flashing Unlock
Hey, make sure that you have first unlocked the bootloader with the fastboot command: "fastboot flashing unlock". Try it. It will erase all your data and do a reset factory and then you should be able to reboot your device normally. Also, it will let you flash the boot.img for root your device.

Perseo99 said:
Hey, make sure that you have first unlocked the bootloader with the fastboot command: "fastboot flashing unlock". Try it. It will erase all your data and do a reset factory and then you should be able to reboot your device normally. Also, it will let you flash the boot.img for root your device.
Click to expand...
Click to collapse
when i type "fastboot flashing unlock" in cmd it shows nothing .. just showing what commands i can do with fastboot

mashkalny said:
when i type "fastboot flashing unlock" in cmd it shows nothing .. just showing what commands i can do with fastboot
Click to expand...
Click to collapse
Did you let unlock bootloader and permitted the USB debbugin on the developers option before flash the boot.img?
Make sure you are using a USB 2.0 to connect your device to the PC. See if you PC recognizes the device into the fastboot menu with "fastboot devices", if doesn't, try reboot another phone with "adb rebbot bootloader", then enter "fastboot devices", your device should be listed into de the devices attached. Then try again entering "fastboot flashing unlock".

Perseo99 said:
Did you let unlock bootloader and permitted the USB debbugin on the developers option before flash the boot.img?
Make sure you are using a USB 2.0 to connect your device to the PC. See if you PC recognizes the device into the fastboot menu with "fastboot devices", if doesn't, try reboot another phone with "adb rebbot bootloader", then enter "fastboot devices", your device should be listed into de the devices attached. Then try again entering "fastboot flashing unlock".
Click to expand...
Click to collapse
i believe i forgot to unlock the bootloader when i tried to root. now i cant access anything in the fastboot mode.

mashkalny said:
i believe i forgot to unlock the bootloader when i tried to root. now i cant access anything in the fastboot mode.
Click to expand...
Click to collapse
Oh, that could be a problem. Try to use this tool. I hope you can get your phone working again. If this doesn't works, try to flash the original boot.img of your firmware version.
https://forum.xda-developers.com/re.../tool-nubia-red-magic-3-unbirck-tool-t3965044

Question [Resolved] No connection with pc in fastboot mode.

Hello all, I'm trying to install a new ROM but one of the first steps consists in getting access to adb and fastboot mode.
Unfortunately, I can easily access to adb mode, and adb commands respond well, but when I then go in fastbood mode 'adb reboot fastboot", My phone goes to fastboot with the icon on the screen, but won't answer to any fastboot commands.
I've tried to install adb drivers, uninstall/reinstall the drivers (but it's always the windows drivers that installs first). I even tried to install google usb drivers using SDK manager, but didn't succeed this step.
I've tried to change the usb cable, but with another one, it was worse: even the adb commands would not work. So I guess the one I'm using is ok.
I'd be very happy if someone could help me fixing this frustrating bug!
Model:M1903F11A
kernel:4.14.117-perf-g0f2347b
MIUI Global 12.0.6
Android version : 10 QKQ1.190825.002

Cyjam said:
.. new ROM but one of the first steps consists in getting access to adb and fastboot mode.
...
Click to expand...
Click to collapse
The first step is to unlock the bootloader.
Cyjam said:
... when I then go in fastbood mode 'adb reboot fastboot", My phone goes to fastboot with the icon on the screen, but won't answer to any fastboot commands.
....
Click to expand...
Click to collapse
For fastboot try:
adb devices
........... (here you must see a number)
adb reboot bootloader
fastboot devices
........... (here you must see that number again)

Hi, thanks for trying to help me:
you're right , first is the unlock, but it's done. it's even in "grey" on the screen and written: bootloader is already unlocked. I've tested my phone with "root checker" and test is ok.
you're right about the command, this is the one I've used to go to fastmode and actually this command works: as I said, when in adb mode, it's all good: my phone is connected to pc and accepts the adb commands. But once I switch to fastboot, this is when it's going wrong: my phone's not answering to any commands.
To be more precise: when prompting: adb devices: i get a number. When prompting, in fastbood mode, fastboot devices: i get nothing.

Alleluia!!
Finally found out how to fix it!
After going in fasboot mode with the command: adb reboot bootloader, i opened the windows device manager: There I found a android XXx interface, or something like this: anyway, something barely identified by windows. Right clik, update drivers, manually update, pointing to the folder I store the google usb drivers and : Bingo! It works like a treat.
I now can step further in the process... Hope I won't need to come back with another question in the next minutes!