I tried to unlock the bootloader on my OPT, after I had already unlocked and locked it. The phone does not start when i hold the power key, it does not start recovery when I press and hold the volume down and power key. It starts in fastboot mode when I hold the volume up and power, but when I type a command in cmd is says that the device is not unlocked and the command failed.
When type "fastboot reboot" it shows the oneplus logo and the "powered by android" and after a second, black screen, nothing.
I will appreciate it if you could help me....
pavlin12 said:
I tried to unlock the bootloader on my OPT, after I had already unlocked and locked it. The phone does not start when i hold the power key, it does not start recovery when I press and hold the volume down and power key. It starts in fastboot mode when I hold the volume up and power, but when I type a command in cmd is says that the device is not unlocked and the command failed.
When type "fastboot reboot" it shows the oneplus logo and the "powered by android" and after a second, black screen, nothing.
I will appreciate it if you could help me....
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It's not adviced to relock the bootloader once you already unlocked it.It can cause strange issues.
Try this method:http://forum.xda-developers.com/oneplus-2/general/guide-official-stock-reset-to-oos-2-2-0-t3290707
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Hey guys. I just got LG G6 H870 model. Unlocked bootloader without much problems, but issues came later. While being in bootloader I can't do anything, hardware buttons seem to not work. The only way to get out of bootloader is to use "fastboot reboot" command, but that prevents me from getting into custom recovery after flashing it. Only entering download mode works (holding volume up and plugin in usb cable). Non other key combination work until I boot into system.
Can this issue be somehow resolved?
I had similar problem myself with entering recovery more and the reason behind it was that I didn't press the button combo in proper way. what you actually have to do is while you in fastboot mode you press down and hold power button and volume down button. phone reboots after a moment and you should still be holding these keys and when lg logo appears you let go of power button for brief second and then press it back again and then when a prompt on white screen appears just go yes two times and phone shall boot in recovery mode . I had watch a tutorial movie to figure that out. other easy way is just to have adb enabled and reboot it with adb reboot recovery command via USB cable
non.verbal said:
I had similar problem myself with entering recovery more and the reason behind it was that I didn't press the button combo in proper way. what you actually have to do is while you in fastboot mode you press down and hold power button and volume down button. phone reboots after a moment and you should still be holding these keys and when lg logo appears you let go of power button for brief second and then press it back again and then when a prompt on white screen appears just go yes two times and phone shall boot in recovery mode . I had watch a tutorial movie to figure that out. other easy way is just to have adb enabled and reboot it with adb reboot recovery command via USB cable
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No, because I had G5 and I know the proper way to do that. Problem is I can hold the power button as long as I live and the phone won't reboot, regardless of pressed combination or power button solo.
and the adb command way ?
Well... Nevermind, turns out vol down button isn't working at all.
still good way around is adb reboot recovery
was trying to root my lg stylo 2 Walmart family mobile(t-mobile) and i unlocked the bootloader and installed twrp but it just says no command when i boot into recovery.
Then you didn't flash the recovery properly, it's fairly simple. If you're able to get fastboot (shut off the phone totally, hold Volume Down and plug in the USB cable attached to a computer, it should go into fastboot mode almost instantly, if not then there's an issue someplace).
After that using fastboot with the recovery img file for TWRP:
Code:
fastboot flash recovery (recovery_file).img
Wait, if it says flashing successful then before you do anything else, type the following:
Code:
fastboot reboot (but do NOT press Enter yet)
Get the phone in your hand, still connected to the USB cable, and get your fingers on the Volume Down + Power button but don't put them just yet. Carefully tap the Enter key with a pinky or something to trigger the device reboot, press and hold Volume Down + Power till you see the LG logo, let Power go for a split second (still holding Volume Down) then press Power again and hold it till TWRP loads.
If that doesn't work - and I've done that hundreds of times - there's something going on with your device, perhaps the bootloader isn't truly unlocked - that checkbox in Developer Options doesn't mean it's unlocked, it just means it can be.
Ensure you followed this: https://docs.google.com/document/d/1xRfGs-w2R_54IB8cVtIj3FTmm5GY0W1Yv4SqDhVHZ-Q/edit?usp=sharing
there's a video tutorial floating around here somwhere
before brick, it had being prompted for a while to upgrade the system software, I always tab later to postpone it. but yesterday accidentally hit the "upgrade now" then it was bricked after the phone was rebooted.
the screen stayed at the huawei logo and powered by Android at the bottom. I am able to push/hold the power button to power it off, but not able to power it up by any buttons or combination. it will automatically turn on (randomly) and stayed at the huawei logo for ever.
when the phone is on at the Huawei logo, connecting it to PC but either "adb devices -l" or "fastboot devices" shows nothing, no devices.
could anyone please share some light?
Thanks
saltedfish said:
before brick, it had being prompted for a while to upgrade the system software, I always tab later to postpone it. but yesterday accidentally hit the "upgrade now" then it was bricked after the phone was rebooted.
the screen stayed at the huawei logo and powered by Android at the bottom. I am able to push/hold the power button to power it off, but not able to power it up by any buttons or combination. it will automatically turn on (randomly) and stayed at the huawei logo for ever.
when the phone is on at the Huawei logo, connecting it to PC but either "adb devices -l" or "fastboot devices" shows nothing, no devices.
could anyone please share some light?
Thanks
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Did you ever unlock bootloader? Could you enter fastboot mode? (hold volume - and power button). Or eRecovery (plug usb cable, hold volume + and power, until Huawei logo appear, release power button)?
gazavn said:
Did you ever unlock bootloader? Could you enter fastboot mode? (hold volume - and power button). Or eRecovery (plug usb cable, hold volume + and power, until Huawei logo appear, release power button)?
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unfortunately, I didn't unlock bootloader, so I can't enter fastboot mode actually. as I mention in the original post, I can only power it off when it's at the Huawei logo, but not able to power it on with any combination, it will randomly power itself on.
You have a corrupted /data partition, happened to me one day, on another huawei device (p9lite). You should, I said should, be able to reboot to huawei e-recovery, using power+volume up, release power after huawei logo shows up. Unfortunately you have to arm yourself with lot of patience and try to use an "unbrick guide" from another device. I'll try to find any info I can for you, but in the mean time you should look as well.
PS:/ I didn't even tried to install anything custom on this mate9, since it;s an expensive phone for me and I cannot afford to brick it up.
MI A1 does not enter the fastboot, appears the message "your dvice software cant'be checked for corruption, please lock the bootloader" Two things, first I am layman, I understand little, the other and excuse the translation, was machine translation.
The message has nothing to do with the Fastboot. That message is a normal reaction when the bootloader is unlocked.
ekin_strops said:
The message has nothing to do with the Fastboot. That message is a normal reaction when the bootloader is unlocked.
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Thanks for the reply, but I wanted to get into the fastboot to do a procedure and not enter,
hidroxido said:
Thanks for the reply, but I wanted to get into the fastboot to do a procedure and not enter,
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Hold the power button and volume down button together for 10-15-20 second, as long as the phone doesn't boot up into Fastboot.
ekin_strops said:
Hold the power button and volume down button together for 10-15-20 second, as long as the phone doesn't boot up into Fastboot.
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Do not enter, this message is appearing and do not enter the fastboot
hidroxido said:
Do not enter, this message is appearing and do not enter the fastboot
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When the message appears, release the buttons and try again to do the same, hold the buttons together for about 20-30 seconds until the phone doesn't enter Fastboot. I Don't see a reason why the phone wouldn't enter Fastboot if you only unlocked the bootloader.
ekin_strops said:
When the message appears, release the buttons and try again to do the same, hold the buttons together for about 20-30 seconds until the phone doesn't enter Fastboot. I Don't see a reason why the phone wouldn't enter Fastboot if you only unlocked the bootloader.
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If I hold on, the same thing will happen 10, 20, 50 times, I've already tested it.
If I release the volume - and power buttons, the unit comes in and I have to turn it off to try again :crying:
Can you boot into the system at all? Does the phone work? How did you get to the point that you can't enter Fastboot, what happened exactly?
ekin_strops said:
Can you boot into the system at all? Does the phone work? How did you get to the point that you can't enter Fastboot, what happened exactly?
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As I said before, I do not understand much of this subject, the phone works normally, all functions are working, I switched on it some time ago, but I can not remember what I did right for it to be without fastboot
hidroxido said:
As I said before, I do not understand much of this subject, the phone works normally, all functions are working, I switched on it some time ago, but I can not remember what I did right for it to be without fastboot
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If you don't understand the subject, why did you want to boot into fastboot mode in the first place? No offense, just aksin'.
ekin_strops said:
If you don't understand the subject, why did you want to boot into fastboot mode in the first place? No offense, just aksin'.
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Good question, did not offend me. I figured it was time to start learning about it, I was thinking of installing the Google Pixel rom
With the phone OFF:
Press Vol- and Power, when Bootloader screen appear just release the power button, so continue to hold Vol- until the fastboot screen.
It's the only procedure for fastboot on our device.
N1ck474 said:
With the phone OFF:
Press Vol- and Power, when Bootloader screen appear just release the power button, so continue to hold Vol- until the fastboot screen.
It's the only procedure for fastboot on our device.
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It did not work, the error message appeared and as soon as I released the power button, came on the device. This problem has left many people without understanding, I just did not give up, because I do not accept that only my cell phone this function does not work
Does your phone have root? If so you can use a reboot app from the play store to boot into fastboot.
Install adb drivers, enable USB debug then open command prompt and type "adb reboot bootloader". Phone should reboot to fastboot mode.
sipollo said:
Install adb drivers, enable USB debug then open command prompt and type "adb reboot bootloader". Phone should reboot to fastboot mode.
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adb reboot bootloader worked kkkk now that the fastboot worked I will solve if I try to put the other rom, or if I leave as is, but if any of you are where I find information on how to change the rom and if it is really worth it, me Please, thank you very much at all
LG G6 H871 unrooted
I just can't get into fastboot or recovery mode. I've tried everything on the internet.
I've tried turning off the phone. Holding down the volume down button and then plugging in the USB cable.
I've tried adb command "adb reboot bootloader" which just reboots the phone until I can see the "enter your PIN" screen
The closest I got to the recovery mode was using "adb reboot recovery" which gave me the "no command" screen.
Any tips on this?
Have you enabled OEM Unlock option under Developer settings?
Yes. "Enable OEM unlock" and "USB debugging" enabled.
both oem unlock is on and usb debugging on and my computer has accepted the fingerprint from teh device to shake with adb. . still cant get into fastboot mode.what to do.
Is your phone rooted? If so use flashify to reflash recovery. You do know that if you want to boot in recover you have to let the power key go and repress it once your screen goes on right?
You can also try phone off. Holding volume up while you insert usb cable. Might be a tool that allows a command to be send to reboot it in fastboot mode? If not downgrade its firmware..
ErlendAnderson said:
LG G6 H871 unrooted
I just can't get into fastboot or recovery mode. I've tried everything on the internet.
I've tried turning off the phone. Holding down the volume down button and then plugging in the USB cable.
I've tried adb command "adb reboot bootloader" which just reboots the phone until I can see the "enter your PIN" screen
The closest I got to the recovery mode was using "adb reboot recovery" which gave me the "no command" screen.
Any tips on this?
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If I understand correctly, when you got to the No Command" screen, you were actually in Recovery. From my experience, the No Command screen is like a "greeting", if you will. Once you see that screen, you need to fiddle with the power & volume buttons. I believe the correct combination is to press and hold the power button. Then press and release the volume up button but continue to hold power button. If that is not the correct sequence you will need to Google for the correct order. Reference.
Considering that you are not rooted, there is not much you can do in the stock recovery.
EDIT 2 - Realized that this thread is over a year old and the OP has probably moved on. Didn't realize another member revived it. Sorry.