Develop Bugs

[Q] Secure boot error

hi all! I've certainly royally screwed myself over this time around.
I installed sling v3.2 and restored my apps, after restoration I tried to unlock bootloader with freegee (since it was pre-rooted) and freegee showed it was already unlocked, so I tried to flash a custom kernel and viola! this happened!
Problem is, my power button is close to broken and no amount of pressing down will turn the device off. is there anyway I can turn it off or save my Optimus G? thanks in advance!

UPDATE:
I've tried to get into download mode but to no avail (tried pressing volume up + down while ramming the power button on my PC desk). I tried Vol Down + Power and I got into factory reset mode, so i pressed vol down because I didn't want that.
It restarted to LG screen which showed that dreaded secure boot error message. This time around I tried Volume Up + power button and it restarted but with the message "something unLock!! restart boot!!" something like that, didn't really see what it was, it flashed too quickly for me to see what it said. Anyways it then rebooted into CWM and now I've cleared cache/dalvik/system/data and re-installed Sling v3.2!!
Hopefully this will work out so I'll update this when it finally boots back to life! (hopefully!)
BTW, my device is an LG F180K the Korean Variant, it's color Maroon with an Olleh logo at the back, just in case anyone was wondering.

[Q] *BIG PROBLEM* Vk810 bricked! Can't go into download mode! HELP!

So I got my verizon lg g pad 8.3 vk810 model last week. Yesterday I rooted it and then unrooted it when a nav bar key went missing. The key was still missing so i tried to factory reset the tablet. When it tried to turn on, IT WAS BRICKED! it keeps saying "secure booting error! cause: boot certification verify" so I followed the traditional unblocking method for the lg g pad 8.3 vk810 but it won't go into download mode! I keep hitting both volume buttons and connect the usb but it just tries to charge expect it can't because its bricked! How do i get this tablet into download mode and unbrick it! If i can't will verizon replace it without noticing it was ever rooted? Please replay ASAP!

Firsttimerooter56 said:
So I got my verizon lg g pad 8.3 vk810 model last week. Yesterday I rooted it and then unrooted it when a nav bar key went missing. The key was still missing so i tried to factory reset the tablet. When it tried to turn on, IT WAS BRICKED! it keeps saying "secure booting error! cause: boot certification verify" so I followed the traditional unblocking method for the lg g pad 8.3 vk810 but it won't go into download mode! I keep hitting both volume buttons and connect the usb but it just tries to charge expect it can't because its bricked! How do i get this tablet into download mode and unbrick it! If i can't will verizon replace it without noticing it was ever rooted? Please replay ASAP!
Click to expand...
Click to collapse
Here's the way to get into download mode:
Connect your USB cable and then do the following-
With your tablet completely powered off you hold the power button and the up volume button to get to the download mode.
The instructions say to hold the up and down volume buttons but of course as you know that does not work.
Click to expand...
Click to collapse
This got me totally pissed one day until I found a post giving this info. So I've saved it in a txt file for future reference. Frustrating to no end when the info is incorrect; I understand

gehx said:
Here's the way to get into download mode:
This got me totally pissed one day until I found a post giving this info. So I've saved it in a txt file for future reference. Frustrating to no end when the info is incorrect; I understand
Click to expand...
Click to collapse
Thank you so much! you just saved my g pad! you're amazing!

LG G4 bootloop. Can't go into recovery/safe mode and pc isn't recognising phone usb

My LG G4 goes to the 'LG Life's Good" loading screen and just stays there. The light swirls around the LG logo repeatedly and the devices sometimes vibrates once or twice when I press the back buttons a lot.
I have tried going into recovery mode and safe mode and they don't work. Also, my PC doesn't connect via USB to the phone while it is in this state.
Any ideas?

so how did this happen? did you try to root, flash anything? Is the phone on stock firmware? lp, or mm? give us something more
How did you try to enter recovery? Try to hold power+volume down, when lg logo appears release power but NOT volume down. Wait 1 sec then press power again (while still holding volume down) this is the correct way to enter the recovery

It may be related to ILAPO issue:
http://forum.xda-developers.com/g4/help/lg-g4-stuck-bootloop-t3268734

it got the bootloop need to be sent for repair. it must have warranty... please provide your sirst 3 digits of srial numbe on back of phne.

One click Root failure - stuck at LG logo. Can someone please help me what to do?

Hi
I'd be really really grateful if all of you clearly (more) knowledgeable (than I) could help me.
My phone is a D855 (32gb/3gb) international model which was running on stock v5.0.
I ran v1.3 of the one click root method. and completed the whole process (or so I thought ). However, after the process said it had completed, I removed the usb cable and now find that I am stuck at the LG Logo.
Pulling the battery makes no difference. Once reinserted and power back on, the LED on the top left blinks but no boot.
I have tried to enter download mode (by removing the battery, holding the volume up button and inserting the usb cable) but again, no joy.
Can anyone please tell me what I need to do recover the situation.
Many many thanks

Update: I managed to get into recovery by turning off the phone completely and then pressing and hold Power and Volume Down. When the LG logo appeared, release. After a split second, then pressing volume down and volume up. At the white screen asking you to reset, I pressed Yes two times using Volume buttons. Saw the screen that said erasing data but still stuck at the LG logo.
Can anyone help please?

Update 2: managed to get into download mode by powering down (took the battery out) then holding the volume up button and inserting the usb cable.
What do I need to do next?

hello, you need either the lg mobile suite software or lg flash tool 2014 and a kdz
I would go for lg mobile suite - it will offer an upgrade or select it manually
also -- see the guide from hyelton in g3 general (getting back to stock)

No Firmware, No Recovery, No Download Mode in LG Optimus G F180L. Any Option to fix?

The phone is only showing "Secure booting Error! Cause : boot certification verify"
I've tried pressing both volume keys and then plugged the USB cable in but no luck.
I've tried pressing volume down and power button and then inserts the USB cable but no luck, same screen?
Could you please help what is the issue actually I am facing?
Any help will be appreciated ...

I did get that message when I first flashed my LS-970, But mine allowed me to boot into the system to unlock the bootloader (I had not flashed anything but a new Recovery) I'd recommend going into the OS getting the LG bootloader unlock apk (sorry I don't have the name at the top of my head) Then it will flash a Google bootloader and be unlocked! If you cant get into the OS then try download mode my phone is VOL UP and power I betting you were doing vol down and power. If you cant get into download mode, or the OS, or the bootloader; then your pretty much SOL. There's a number still out there on ebay :/

Hi there...
I have the same problem...
I cant open the OS,bootloader or the download mode....
Can you guys please get any senior here?
I really need to fix it