How to Remove Boot freeze (warning screen) after unlocking bootloader

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DD3Boh

Recognized Developer
Feb 16, 2017
305
1,335
Voghera
I'd like to keep it unlocked since I need root, is it possible to remove it somehow?
I don't think that this is possible to do, even changing the splash logo you can't do that. You could try to relock the bootloader but I never tried doing that on a custom ROM, only on the stock one. I don't remember if after relocking the bootloader with the bootloader status as relocked the initial boot menu is shown. Anyway you could try. I suggest the mauronofrio's tool if you're on Windows. If you are on Linux you have to use the adb and fastboot commands
 

LaurynasVP

Senior Member
Mar 11, 2014
278
37
Lithuania
re

I don't think that this is possible to do, even changing the splash logo you can't do that. You could try to relock the bootloader but I never tried doing that on a custom ROM, only on the stock one. I don't remember if after relocking the bootloader with the bootloader status as relocked the initial boot menu is shown. Anyway you could try. I suggest the mauronofrio's tool if you're on Windows. If you are on Linux you have to use the adb and fastboot commands

I assume [re]locking your BL on custom ROM will cause hard-brick. I need root so can't lock BL
 

DD3Boh

Recognized Developer
Feb 16, 2017
305
1,335
Voghera
I assume [re]locking your BL on custom ROM will cause hard-brick. I need root so can't lock BL
I never tried it but at the end maybe yes. I don't think hard brick but it depends on what you exactly mean with hard brick (all the people think the hardbrick as something different lol)
 

P650SE

Senior Member
  • Aug 14, 2013
    633
    172
    I used to have a ZTE Axon 7 that used pretty-much the exact same warning screen as the ZUK Z2. For certain ROMs on the device you had to flash a different bootloader, as provided by developers on XDA. I remember in one of the flashable bootloaders, the developer was able to remove the warning screen somehow. So I think it is possible to do this on the ZUK as well. It just needs someone to look into it.
     

    P650SE

    Senior Member
  • Aug 14, 2013
    633
    172
    Yeah just a thing, you can now relock bootloader on z2, on specific Roms. I made a guide for it and it works 100% :)
    That sounds great. Although I just went and read your guide and I noticed it says the 5-second bootloader warning will still be there. Is there no way of getting rid of the warning completely even with a locked bootloader?
     

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      Hey there, is there possible to remove that ugly black screen after unlocking bootloader that appears every boot and freezes 5 sec? Thanks in advance.