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Boot security error after trying to install Sling KK ROM

OP ksio89

8th June 2014, 05:09 PM   |  #1  
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I followed the tutorial at http://forum.xda-developers.com/show....php?t=2762171 to install KK ROM on my OG E977, did EXACTLY like written, but then I got stuck at boot screen telling me I have a boot security error, probably due to a locked bootloader, I guess. I try to flash the stock KDZ firmware but KDZ updater offline fix tells me battery level is low when it's not, even when the battery was fully charged.

I can't switch off the phone manually, because it starts again and gets stuck at the LG logo screen with this message:

Secure booting Error!
Cause: boot certification verify

The only way to turn the phone off is with CWM touch recovery 6.0.4.8 by LGviet (after installing the Sling KK ROM or the F180 patch, I guess, because the recovery utility was CWM 6.0.4.7 non-touch installed by FreeGee after unlocking the bootloader.). And when I turn the phone off and plug the charger, the phone boots up by itself and gets stuck at boot security error screen.

I tried to send a CyanogenMod ROM via adb sideload, but it tells me the ROM is for E975, while the phone is a F180 model.

Could someone give me a help, please? Thanks in advance.
11th June 2014, 05:52 AM   |  #2  
Ahmed Xperia p's Avatar
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Quote:
Originally Posted by ksio89

I followed the tutorial at http://forum.xda-developers.com/show....php?t=2762171 to install KK ROM on my OG E977, did EXACTLY like written, but then I got stuck at boot screen telling me I have a boot security error, probably due to a locked bootloader, I guess. I try to flash the stock KDZ firmware but KDZ updater offline fix tells me battery level is low when it's not, even when the battery was fully charged.

I can't switch off the phone manually, because it starts again and gets stuck at the LG logo screen with this message:

Secure booting Error!
Cause: boot certification verify

The only way to turn the phone off is with CWM touch recovery 6.0.4.8 by LGviet (after installing the Sling KK ROM or the F180 patch, I guess, because the recovery utility was CWM 6.0.4.7 non-touch installed by FreeGee after unlocking the bootloader.). And when I turn the phone off and plug the charger, the phone boots up by itself and gets stuck at boot security error screen.

I tried to send a CyanogenMod ROM via adb sideload, but it tells me the ROM is for E975, while the phone is a F180 model.

Could someone give me a help, please? Thanks in advance.

How can you boot into recovery once it's in Secure booting error?
Any how fix it using teeny bin repair, it's easy fix.
11th June 2014, 08:47 AM   |  #3  
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Quote:
Originally Posted by Ahmed Xperia p

Any how fix it using teeny bin repair, it's easy fix.

Or, just as an alternative, find a KDZ that works with the regular KDZ Updater (filesize up to 1.17GB worked for me). This way, as opposed to the offline method with LG Support Tool, you won't get a low battery error, even if the battery is completely dead. Had exactly the same problem myself, this was the solution I used.
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