I just got a new Lg G2 (Verizon) from insurance today and have been attempting to root it all day. At first I tried to the standard ioroot method, and as soon as the phone was supposed to enter stock recovery the Lg logo would show and the phone would then boot into the picture of an android with his chestplate open and a red triangle saying "no command". I tried several times. No change in results. I even tried factory resetting the phone. Same results (I am on 4.4.2 fyi). I couldn't find anybody else with a similar problem so I assumed maybe there was just an issue with my computer. So next I tried towelroot which many claim should work on all versions of the G2. When I click the "make ra1n" button it simply says "this device is not supported". Did they send me some new version of the G2 that for some reason isn't supported? Or has Lg implemented some software change to keep users from rooting? I have no idea what the problem could be. Any ideas what the issue could be/how I can fix it? I just want to install cyanogenmod
Related
Hello everyone,
I've searched everywhere I can think of to figure out how to solve my problem, and I assume the answer is hiding in an obscure part of an earlier thread on these fora. I was able to root my L9 P760 running Android 4.1(Jelly Bean) and from there naively assumed I could flash the recovery using ClockworkMod. After rebooting I've been getting the infamous "Security Error" screen. I've been able to get the "S/W Upgrade" screen, but that's as far as I got. I believe this means the bootloader is locked.
I followed a lot of instructions I found including using fastboot via omap4boot(http://forum.xda-developers.com/showthread.php?t=2119090) and the offline kdz flash(http://forum.xda-developers.com/showthread.php?t=2085344), but without luck. Fastboot would cause the phone to reboot, losing the "S/W Upgrade" screen and the kdz method would stall at 4%, leading me to find out that the phone needs to be in the "LG Update" USB mode, which I can't achieve because it won't boot.
I have two Macs running OS X 10.7 which can dual-boot into Windows 7. All software is up to date. I have experience using the command-line.
I hope there's a solution to this, and I hope that posting this here can help others avoid this problem in future.
Thanks in advance,
Pieter
Edit: I finally managed to flash a stock version of recovery, the x-loader and u-boot for Jelly Bean using the fastboot script from here. For those in a similar situation, I set the driver for the OMAP4xxx device which goes under TI devices(or something like that) and then I had to set the driver for a device called LG P4(or something, I didn't take a screenshot). I was then able to use the stock LG Mobile Support Tool, via the "Recovery Phone" option, to restore the newest version. However, it still won't boot properly. I get the LG logo when turning it on, and then the animation with the LG logo with the shiny effect on the smiley face keeps running in a loop. Is this the boot loop problem I've seen people asking about? How do I access recovery(and would that accomplish anything)? Any help would be appreciated.
Edit 2: I think I fixed it! I'm just documenting what I did to be helpful to other people. I had tried to do a hard reset earlier, but it didn't work. I tried it just now, and it worked, I got an droid with a progress bar underneath. Then it booted, and I heard the startup sound which I didn't know I was missing. I would still like to know in detail what I did wrong, and what I did right, and why it was right. Thanks in advance.
Simple, you probably did nothing wrong. Things just happen. I had this happen to me once. Security Error
However, I didn't install a custom rom or recovery img. All I did was flash a different kdz version (for my device). So my guess is that the boot img or other img, got corrupted.
I fixed my issue by flashing x, u, boot, recovery all in fastboot. Then I ran the flash update program again and it worked
Sent from my LGMS769 using xda app-developers app
dont know how to unbrick my lg [NEED ANYONE'S HELP :'( ]
hi,im new here...i have softbricked my lg l9 p768e last week. and i found this thread. i want to try using this method, but always stuck when launching B2Capp.exe. it appeared and gone like nothing happened. by the way, i cant get into CWM through my phone. somebody help me!!! i dont know what to do now...
sorry for broken english.
faizin.alfateh said:
hi,im new here...i have softbricked my lg l9 p768e last week. and i found this thread. i want to try using this method, but always stuck when launching B2Capp.exe. it appeared and gone like nothing happened. by the way, i cant get into CWM through my phone. somebody help me!!! i dont know what to do now...
sorry for broken english.
Click to expand...
Click to collapse
How do you brick your phone. Did you try to hard reset it? Did you try offline flash or LG mobile support tool to recover your phone?
I apologize if this topic has already been discussed but I have tried searching the forum with no luck.
I own an LG Optimus 2X (P990) bought from Germany, currently it's on 2.3.4 V20E and would like to update to ICS.
I could not get the software update OTA so I tried downloading the LG Updater software from LG directly.
The software detects the phone and says an update is available but when I cilck on the update button and let it run, at some point, a popup appears suggesting to make a backup. So far, everything is fine. Once the backup is done and I click the "Start upgrade" button, I get this error message : "An Unsupported operation has been attempted"
Has anyone ever seen this before? Could this be due to the fact that the phone is from Germany and I am in the UK or is there another way to upgrade the phone without using the LG software?
Thank you
dglad
I get the same problem over here, also with the p990. I am really annoyed by it... Hope someone can help us out.
Hey everyone,
I know there are countless threads on this but I've been up all night going through pages and pages of info and trying virtually everything that each post said to no avail, so I thought I'd just make a new thread and see if anyone can help me.
Okay, so, I had a rooted L9, with locked bootloader, on stock JB before I started any of this. Yesterday, I decided that I wanted to put Cyanogenmod 11 on it, yet, I have only managed to soft brick it.
Basically, it's stuck at the Security Error screen. I can get it into the S/W upgrade mode, however, when I do that and open the LG support tool the program just crashes. The Windows "not responding" error pops up, and the program closes. I have no idea why this is happening now, because the program was working fine before, but anyways, yeah. I have the shttps thing running in the background, and the connection is successful. I tried doing the offline fix countless times, but no luck. I have the UpTestEX_mod2_marwin.exe file, too, that I've been trying to use, however, as you all know, it just opens the lg program when you click on "upgrade start" and the program crashes. I tried doing the software upgrade through the exe file, but it doesn't find the port. Device Manager tells me the L9 is on port 9, but it looks on port 1 or 0, and doesn't find the L9.
I think that's basically it, and, if anyone can help me at all it would be very much appreciated (I don't really want to have to buy a new phone!)
If it is a security error than I think it would be easier to fix it from omap4boot mode with unofficial fastboot. Its a thread in this forum.
Sent from my Amazon Tate using Tapatalk
The message appears at the top of the screen above the LG logo after it has been there for a few seconds and it says:
I've tried Googling the error but every result is about a rooted phone and different models. It should also be noted that this started happening after a routine shutdown and restart command. The only apps I have installed that didn't come with the phone are Perk TV[1] .
The phone is otherwise a stock LG L34c from Tracphone.
I've seen a lot of posts from other users who encounter this issue after trying to root their phones or change software. Is there any chance of reloading firmware/OS/etc to surmount this issue?
Thank you so much!
Still no solution... If anyone can help, thanks
I have this problem also. I found the LG support tool in another thread, but it starts with the L35C model & doesn't seem work with this one
Hello everyone, I have been a fan of your forums for quite a while, you guys have an awesome community. I have been attempting to unbrick my VS990 with no success, I have LGUP and all of the proper dll files in the proper folders, I have two .kdz. One is the stock kdz, I can not get to work at all due to anti roll back (no matter which option I choose) and the other is the current kdz. I got that one to accept using update, but it did not fix my phone, it is still stuck in boot loop. and using refurbish I get an error message saying that it is not supported by that kdz. LG UP is fully recognizing my phone, I found the .kdz files no problem, I believe that I have followed all of the steps here >> https://forum.xda-developers.com/lg-v10/general/guide-lg-v10-stock-firmware-to-stock-t3224170 any help at all would be appreciated. Side note, I have not rooted or installed a custom recovery.
I would also like to add, I can not do a hard reset. Every time I attempt the phone either locks up when I hit the power key on yes to confirm factory reset, or sometimes it reboots to LG splash screen and locks up then. I am starting to wonder if there isnt a hardware problem with the phone instead of software.