Develop Bugs

Not able to run CWM Recovery at boot time

i have converted LG optimus F180l to E975 using following link. now i want to upgrade it to Kitkat and for this i have installed ROM manager to play store and installed CMW 6.0.4.5 (recovery portion of ROM manager shows this version). now whenever i select the option 'reboot into reovery", the phone reboots itself and gives me following error with LG logo in centre of the screen.
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secure booting error!
Cause : boot cetification verify
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i have to tun off the phone by pressing power button for 8-12 seconds. please guide me how to resolve this issue as i want to upgrade to android 4.4 on my cell phone.
http://www.cellrabta.pk/2013/10/how-to-convert-f180-skl-to-e975-lg-optimus-g/

any luck??

You installed CWM sucefully. But you dont unlock bootloader so the LG security error activates.
So you have to flash a KDZ firmware from LG.
Then root.
You dont have to use ROM manager, it can brick your device also.
After root, download FreeGee aplication from PlayStore, it will unlock your bootloader and install CWM or TWRP, youchoose.

Stuck at boot loop. White Amazon Logo

Hi guys,
I was in the final step (7) of this gude: http://www.aftvnews.com/start/
Which is installing the latest pre-rooted stock software, (version 51.1.4.1_514013920) After pushing the rom to /sdcard, I rebooted the device so that I could flash it via clockworkmod recovery, but I was not able to select the recovery option with my keyboard. So I decided to re-do the installation of Rbox's kernel boot menu. Now, I'm stuck at a boot loop with just the white Amazon logo showing up. Is my device bricked and is there a way to fix it?

FYI I cannot access clockworkmod recovery. I wish I could, as I would then be able to flash the latest pre-rooted ROM that's in /sdcard
Does anyone know how I can access recovery?

Newbie_from_NJ said:
FYI I cannot access clockworkmod recovery. I wish I could, as I would then be able to flash the latest pre-rooted ROM that's in /sdcard
Does anyone know how I can access recovery?
Click to expand...
Click to collapse
You need cwm 6.0.5.1.4 or higher AND unlocked boot loader or you will brick it. If this is your situation believe me I hope I'm not the bearer of bad news. Hopefully you'll be ok. Good luck!

KLit75 said:
You need cwm 6.0.5.1.4 or higher AND unlocked boot loader or you will brick it. If this is your situation believe me I hope I'm not the bearer of bad news. Hopefully you'll be ok. Good luck!
Click to expand...
Click to collapse
I have all that. Box came with 51.1.1.0_user_511070220. Here are the steps I did:
1. Rooted & install busybox and blocked updates
2. Downgraded to version 51.1.0.2_user_510058520
3. Rooted again
4. Unlocked Bootloader
5. Installed Clockworkmod recovery 6.0.5.1.4a
6. install Pre-Rooted Stock ROM version 51.1.4.0_514006420 updated via Clockworkmod recovery
7. Installed Busybox
8. Installed Kernel Boot menu
9. pushed to sdcard the latest pre-rooted stock software, version 51.1.4.1_514013920
10. Rebooted box, but here is when I realized I could not select recovery option from boot menu using my keyboard.
11. I decided to try and reinstall the boot menu. I followed the same steps I did in #8.
12. Stuck at boot loop with white Amazon Logo.

In hindsight, now that I've reviewed each step, what I should have done was flashed Pre-Rooted Stock ROM version 51.1.4.0_514006420 AGAIN via Clockworkmod recovery in order to properly uninstall the kernel boot menu. Then I should have tried re-installing the kernel boot loader again. Lesson learned.

Newbie_from_NJ said:
I have all that. Box came with 51.1.1.0_user_511070220. Here are the steps I did:
1. Rooted & install busybox and blocked updates
2. Downgraded to version 51.1.0.2_user_510058520
3. Rooted again
4. Unlocked Bootloader
5. Installed Clockworkmod recovery 6.0.5.1.4a
6. install Pre-Rooted Stock ROM version 51.1.4.0_514006420 updated via Clockworkmod recovery
7. Installed Busybox
8. Installed Kernel Boot menu
9. pushed to sdcard the latest pre-rooted stock software, version 51.1.4.1_514013920
10. Rebooted box, but here is when I realized I could not select recovery option from boot menu using my keyboard.
11. I decided to try and reinstall the boot menu. I followed the same steps I did in #8.
12. Stuck at boot loop with white Amazon Logo.
Click to expand...
Click to collapse
Then I don't know...I always double or triple check to make sure but your steps seem correct. Was this a new box? I only say that because I remember that super tedious process and at one point I think I needed to root again. At that point it maybe possible an update could sneak through but that would probably result in losing root--worst case. Not a brick.
It's concerning because you seem to know what you're doing and were cautious during the process.
Hopefully someone else can confirm where you went wrong. If you didn't go wrong then that might be a bigger problem. Everything went smoothly up until it hung at boot?

As they always say, if your in a jam and get "failed" messages when writing to boot or recovery or flashing, do not reboot. keep trying till you get no errors. that said, I thought I was stuck in a boot loop cause I insalled the llama and xbmc launcher and removed the launcher app. I was still able to get through adb but it took like 5 or 6 reboot tries. good luck.

Can't Flash TWRP Recovery

Hi,
I have an LG Gpad 7.0 v400 tablet which I recently rooted.
I am trying to flash TWRP recovery using Flashify (for root users), but it is not working.
It flashes the file and says to reboot the device to apply the flash, but when it reboots, it stops at the start screen with text in the top left corner saying their is an error with booting up.
Turning the tablet off then on again clears the error, but the recovery isn't there.
I have the correct recovery for the tablet
What do I do now?

I am in the same exact predicament so can anyone help with instructions OT a link on how to flash recovery or how to get into recovery with button combo. I can't figure it out

Recovery on Kitkat 4.4.2 v20c

Hi!
I've recently rooted my phone using StumpRoot and I've decided to flash CWM Recovery using the ROM Manager from Google Play Store...
Ofcourse I forgot that V20c has a locked recovery, so now whenever I try to boot into recovery, I get "Secure booting error". Fortunately, the system works just fine, so the only harm done is the complete lack of recovery
Have anyone tried unlocking the bootloader on KitKat using FreeGee app? I've seen it mentioned more often than once, though I can't find any info regarding its usage on Kitkat v20c. Can the secure booting error cause further problems if I try the FreeFee app?

OK, tried FreeGee, the bootloader seems to be unlocked with CWM Recovery installed. Rebooting into recovery in ROM Manager (from Google Play Store) works like a charm.
Used the MAKO method, installed CWM-6.0.4.7.
Now whenever the phone boots up, first Google logo will appear, followed by LG, followed by carrier/LG animation

Lost root. How do I regain it?

Hi guys it's been a while since I've rooted any devices but decided to root my LG G PAD 8.3 (V500), since it is so outdated. I'm gonna go over exactly what I did on how I got here to better understand. Sorry in advance for the long winded post.
-Anyway, I had to downgrade to 4.2.2 by using the LG Flash Tool 2014.
-Then, I rooted my device by running root.bat Also, I had SuperSU when I rooted.
-After rooting, I installed TWRP via the play store, downloaded the most recent twrp.img and flashed it via the app. It took me forever to get to recovery by pressing power+volume down and then pressing power+volume down+volume up. But after what felt like 20+ tries, I got to TWRP recovery.
-I wiped my phone and flashed the most recent Lineage ROM. Unfortunately, after flashing the ROM, I could not flash GApps because it rebooted to the ROM after flashing. TWRP let me know that I had to update TWRP and since I did not have the play store and I was once again having trouble getting into recovery, I downloaded the most recent TWRP apk.
-When trying to open the apk, it gave me a "can't open file" message which I didn't understand why. After rebooting, for some reason, it then let me run the TWRP apk and installed the TWRP app. This is when I found out that I was no longer rooted because TWRP notified me. I double checked with root checker and indeed I was no longer rooted. I have no idea when or how that happened.
-Again, I couldn't get into TWRP recovery until I plugged in my phone to my PC and for whatever reason, it helped me get into recovery. I wiped the phone and proceeded to flash Lineage and GApps.
-I read that by flashing SuperSu I may regain root, so downloaded an updated SuperSu, went into recovery and flashed SuperSu. When rebooting, the LG screen came up with a message at the top left corner reading "secure booting error! Boot certification verify". At that point, I was in a bootloop and had to go into recovery, wipe and flash again minus supersu. So I am now on Lineage with GApps and no root.
How do I regain root? And anyone know how I was able to lose it? Back in the day when I was into flashing, I never had these problems and never lost root out of nowhere like this.
Also, if I wanted to get back to stock LG 4.2.2, how would I go about that? I know that currently, I can't use the LG Flash Tool 2014 because my current ROM does not have a USB Software option in order for the tool to recognize the tablet.
Any help would be greatly appreciated, thank you.