Oneplus 6 stuck on 'unlocked bootloader' warning upon restart
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@toughcaddy P.S. This bootloader warning seems to get stuck when you choose the "reboot" option within Ubuntu on Oneplus 6. My advice is to always choose the "shut down" option in Ubuntu instead of "reboot" and then to use the power button to turn the phone back on. If the warning gets stuck, then use the power button alone several times as described above.
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@ronbillock
Yes it is like this.... sometimes it will boot into UT on the first boot, sometimes on the 5 or so, and sometimes it takes up to 15 attempts..... it might make you a bit nervous in a stress situation but it will boot some time...
I am still trying to figure out any workaround, like connecting the USB cable, holding some buttons etc. so we could report a low-end trick to the devs
this should not be a daily usage breaker since you will not reboot your phone 100 times a day?
Edit:
As @fantastic_sky46 reported, the dev branch seems to boot better now... -
@magdesign The boot fix was merged into Dev last week and should be in the next RC update.
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@toughcaddy I found a better solution than pressing the power button alone several times. First, enter the "Recovery mode" (not "Reboot to recovery"!) by holding the volume up and power button. When you reach the fast boot mode choose "Recovery mode" by pressing the volume up and down buttons and make your selection by pressing the power button. When in the Recover mode, select Advanced and then Power off. After that, try using the power button alone. If you still get stuck in the bootloader warning more than once, then repeat the Recovery mode procedure. With this approach, I never have to turn off and on my OnePlus 6 more than two times before it loads Ubuntu successfully.
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@lakotaubp
Thanks,
switched to RC channel (on 04.Nov. 2021) and booting seems to work fine now!@toughcaddy
Just switch to RC channel or wait for the next release.@Digital_Wookiee
I guess you can mark the thread as solved or partly solved ... -
@magdesign Thanks, the Release Candidates worked fine for a while, but the latest small update (February 12 or 13, I think Ubuntu Touch 45, size 6 MB) resurrected this problem, I haven't been able to boot my phone into Ubuntu Touch for 2 days now. I have tried what worked before a hundred times, nothing works.
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@toughcaddy
weird.
did you try to install stable with the ubports installer?
for me this always fixed stuff without loosing data on the phone. -
@magdesign You're a lifesaver!! Using my Ubuntu notebook and UBPorts Installer, I was able to install the latest stable OS, 16.04 OTA-21, without losing any of my previous data. It doesn't get stuck in the bootloader warning.
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@c00k Thanks! it works
although for me, I had to hold the 3 buttons, volume up, down and power botton connect to pc then launch MSM tool -
@toughcaddy Just wanted to give Oneplus 6 users a heads up that the latest stable version of UT, OTA-22, has the same problem with the bootloader warning. OTA-21 was free of this problem. Unfortunately, OTA-22 even fails to boot the very first time after installation via the "Updates" option in system settings within Ubuntu Touch. I was able to get past the bootloader warning (i.e. boot into UT) only after I installed the latest release candidate via UBPorts Installer, as described in my previous message. One has to select the RC channel in the UBPorts Installer during the installation.
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@toughcaddy No matter how unhappy I am with possible problems in the current release candidate, I am planning on forgoing all updates for at least 1 year.
