Today had unlocked bootloader, made everything and ended up in V20F with official unlocked bootloader, but, for noob's reazons I can't flash cwm. flashed V20D for root and install recovery for locked bootloader, and there, flashed cwm.zip (http://forum.xda-developers.com/showpost.php?p=44300426&postcount=358) installed succefully, reboot and then it gave me security error. Got into S/W And realized that it wasn't unlocked.
After some researching, found that the unic way to save my phone was by official LgMobile Support, it didn't recoignaized my phone.
Dindn't gave up and tried crazy things, flashed cwm in unofficial fastboot, then p760 JB uboot and x-boot(Lelus fastboot http://forum.xda-developers.com/showthread.php?t=2292828), then I reboot into CWM touch without problem! Thought about getting
unlocked bootloader and flashed CM10.1 Unofficial, and it flashed , reboot and had LG bootscreen inverted, but everything else okay, so I don't know
if this can help to anybody, maybe can be a new method to unlock without making crazy things.
By the way, as you can notice English is not my native languaje, so sorry if I made mistakes.
you forgot this one
http://forum.xda-developers.com/showpost.php?p=44161955&postcount=310
this will fix the inverted lg logo at boot, flash in cwm
all you needed was to flash the u-boot.img for 20f in fastboot, you would have had no security error.
Related
I keep getting these messages when I try to use Rom Manager. Screenshots provided. I need to know how to get ROM manager to work on my phone so I can boot into recovery and flash backup roms and stuff. How do I install a clockworkmod based recovery manually? Does my bootloader need to be unlocked is there an easier method to unlock bootloaders for lg l9 p769? [/ATTACH]
You can't get CWM recovery with ROM manager,
Use this---> http://forum.xda-developers.com/showthread.php?t=2095825
It's made for our phones
sent from my locked rooted P769 v20D
I'm on YouTube (BioDesigner48)
BioDesigner48 said:
You can't get CWM recovery with ROM manager,
Use this---> http://forum.xda-developers.com/showthread.php?t=2095825
It's made for our phones
sent from my locked rooted P769 v20D
I'm on YouTube (BioDesigner48)
Click to expand...
Click to collapse
Didn't work for my rooted P76920d
I'm guessing I have to flash a .kdz that has recovery already on it?
You never really specify which correct busybox you have to have installed anyway, I think that may be it. What busybox do I install? Smart or nonsmart?
sf3500 said:
Didn't work for my rooted P76920d
I'm guessing I have to flash a .kdz that has recovery already on it?
You never really specify which correct busybox you have to have installed anyway, I think that may be it. What busybox do I install? Smart or nonsmart?
Click to expand...
Click to collapse
Honestly you shouldn't even have ROM manager unless you have an unlocked boot loader and its useless for our phones also if you want to install a recovery without unlocked boot loader try artas bootstrap and if you have unlocked flash the cwm or twrp image
The only true wisdom is in knowing you know nothing -Socrates
carloswii5 said:
Honestly you shouldn't even have ROM manager unless you have an unlocked boot loader and its useless for our phones also if you want to install a recovery without unlocked boot loader try artas bootstrap and if you have unlocked flash the cwm or twrp image
The only true wisdom is in knowing you know nothing -Socrates
Click to expand...
Click to collapse
I stopped using ROM manager, it was always useful for other phones but not this one.
At first I installed artas recovery. It didn't work, no flashing LED. Then I installed a different busybox. Now I get LEDs but when I press volume down button it stays stuck in the LG logo and I have to reboot. So I still don't have recovery with artas after switching busyboxes but LEDs flash so that's a start.
I'm just going to try to unlock the bootloader, I need recovery to work.
EDIT: Nevermind, I was using 1.3 version so I deleted the sys files and upgraded to 1.5. fixed, thanks.
Hello I have a problem with my LG optimus 4XHD. I didn't like the 4.1.2 lg skinned android so i wanted to install a custom rom. I started by rooting my phone that worked but then i flashed clockworkmod recovery without unlocking the bootloader. Now i can't enter my recovery anymore if i try to boot into it i get the message: [LG Security] Error boot image signature i dont know much about this but i can still boot into android. Now my question is: Can i still unlock the bootloader now without bricking my phone? Or is there another fix for a problem like this. Can someone please help me?
Thanks!
I tried to root my mom's LG p769 I tried installing cwm recovery with flashify with out unlocking the bootloader. I know I'm an idiot! I never had this problem before, if possible can I get the phone working without a hardreset? I neeeeed help
I have a similar problem on my p760. I followed this guide.
I got my phone succesfully updated to version V20H. Then in this post I followed the link for locked bootloader, but it re-linked me to a UNlocked bootloader guide. Now when I try to turn on the phone it says "SECURITY ERROR". I tried redo the update V20H but i got stuck at 4%. I can't go on hard reset mode. I used several guides, but they didn't work for me. Any help is appreciated. Sorry for my bad english :silly:
EDIT:
Nevermind. I went to sleep and this morning I tried this in normal flash and it worked.
Go to download mode and flash correct kdz by offline method or by official lg recovery (flash firmware which you had before unlocking). Everything should be okey
I have a Z5C(E5803) that was originally able to unlock the bootloader and let me flash ROMs, specifically the Cyanogen ROM that CTXz has been working on. I ran out of power and got stuck in some kind of nasty bootloop yesterday that prompted me to re-flash boot.img and TWRP.
After I did these things I left it charging for a few hours and it was able to boot into TWRP where I then restored it to a backup of the basic Xperia pre-loaded ROM.
This all worked fine, thought I could boot into TWRP and just flash the Cyanogen zip again. I can get into TWRP just fine but I attempt to flash Cyanogen I get an "ERROR 7"
I have since done several wipes, gotten into the bootloader settings by entering that code in the dialer and have seen that bootloader unlock = no. I distinctly remember bootloder unlocking being allowed the first time I installed CM on my device, what could have caused this?
I was able to use it with fastboot anyway and install CM13 again, maybe this was a bug?
When I tried using oem unlock command with fastboot it said my device was already rooted even though I had just restored from a backup, and then I just proceeded normally from there.
use CM13 official Recovery to FLASH CM13.
also i don't think so twrp3.0.2 is out there for z5c. are you using any other variants Twrp? (YUGA ? )
Hello, today I started to having some more fun with my LG G5, I unlocked bootloader, flashed TWRP and installed SuperSU, then I started to flash firmwares. I flashed "Tizen" rom for G5, flashed nicely, everything was working and I had one more software to flash on my sd "Genisys" which I wanted to try. After flashing I was stuck on lg logo, went again to recovery, and formatted system, then again flashed this soft and after rebooting I was stuck in a recovery loop.
From here: https://forum.xda-developers.com/lg-g5/help/bootloop-twrp-t3514927 I tried the solution and my phone is showing now red triangle with "Your device is corrupt. It cannot be trusted and will not boot.
I can still get to bootloader but when i try to flash my unlock.bin again there is a "Bootloader Unlock key write fail" message.
Any help appreciated
Solved: Download mode worked so I installed V20a KDZ with LGUP.
bobiak said:
Hello, today I started to having some more fun with my LG G5, I unlocked bootloader, flashed TWRP and installed SuperSU, then I started to flash firmwares. I flashed "Tizen" rom for G5, flashed nicely, everything was working and I had one more software to flash on my sd "Genisys" which I wanted to try. After flashing I was stuck on lg logo, went again to recovery, and formatted system, then again flashed this soft and after rebooting I was stuck in a recovery loop.
From here: https://forum.xda-developers.com/lg-g5/help/bootloop-twrp-t3514927 I tried the solution and my phone is showing now red triangle with "Your device is corrupt. It cannot be trusted and will not boot.
I can still get to bootloader but when i try to flash my unlock.bin again there is a "Bootloader Unlock key write fail" message.
Any help appreciated
Solved: Download mode worked so I installed V20a KDZ with LGUP.
Click to expand...
Click to collapse
Did you try to unlock the bootloader again - after you unbricked it?
If so, did it work?
@bobiak
Congratulation to your result! Most of the guys i know, would have a unusable paperweight after those experiments.
non-toxic said:
@bobiak
Congratulation to your result! Most of the guys i know, would have a unusable paperweight after those experiments.
Click to expand...
Click to collapse
Thanks
ofirfed said:
Did you try to unlock the bootloader again - after you unbricked it?
If so, did it work?
Click to expand...
Click to collapse
When trying to solve the recovery loop (the link attached) you are moving some system files where bootloader is, so after flashing with KDZ I had bootloader locked againg, but when I got in that recovery loop again and didn't mess with moving any system files, after flashing KDZ my bootloader was still unlocked.
I didn't flash my unlock.bin to see if really bootloader is unlocked, recovery and root flashed without problem.
same problem
bobiak said:
Hello, today I started to having some more fun with my LG G5, I unlocked bootloader, flashed TWRP and installed SuperSU, then I started to flash firmwares. I flashed "Tizen" rom for G5, flashed nicely, everything was working and I had one more software to flash on my sd "Genisys" which I wanted to try. After flashing I was stuck on lg logo, went again to recovery, and formatted system, then again flashed this soft and after rebooting I was stuck in a recovery loop.
From here: https://forum.xda-developers.com/lg-g5/help/bootloop-twrp-t3514927 I tried the solution and my phone is showing now red triangle with "Your device is corrupt. It cannot be trusted and will not boot.
I can still get to bootloader but when i try to flash my unlock.bin again there is a "Bootloader Unlock key write fail" message.
Any help appreciated
Solved: Download mode worked so I installed V20a KDZ with LGUP.
Click to expand...
Click to collapse
how to fix? same here
After a few phones with flashing roms..ive come to the realization that its a waste of time..stay stock
Martin_ger said:
how to fix? same here
Click to expand...
Click to collapse
Read the last line.