V521 bricked - G Pad 8.3 Q&A, Help & Troubleshooting

So far, I decided since my tablet was running slower than it did when I first got it, to reset it. And since I was doing that, might as well unlock the bootloader.
Well, I unlocked the device, attempted to install TWRP, then got the remote failed error, unknown command. Apparently you have to install it via flashify or whatever. Anyhow...
I rebooted the device, but now, all it does is go into recovery, shows the android robot on its side for a split second, then starts flashing white then black on the screen. The only way to stop it is to pull off the battery connector.
The LG mobile tool can see it in download mode, send it the latest kdz image or whatever, works, but still goes back to the same error - boots to recovery then hangs.
Is there a way to fix this? Trying to get it to boot a recovery img didn't work. Erasing all data seemed to have done nothing.

Did you ever unbrick it...?

Related

Soft Brick Please Help

I am soft-bricked (I hope). A boot jig does nothing for me, but I am able to get into twrp recovery. It won't let me flash my current rom though (Mijjz). What should I do? (I am able to access odin through the twrp recovery right now though, and the computer does recognize it.) I am not able to boot directly into it. When attempting to flash in twrp it can't verify the partition size. I believe this is emmc?
Edit: This helped, but... http://forum.xda-developers.com/showpost.php?p=27852689&postcount=435
So this got my phone to boot again (yay) and now it can go into download mode and such, but my phone appears to be in a boot loop of the sprint logo, turning on and off. =( now what?
Edit #2: I am posting how I got this running for future visitors with my issue to see that there is hope of getting there device back online . So after I was able to get into download mode, I was able to go and flash the El26CWM and then do a Wipe on everything. I then was able to flash my favorite ICS rom, and get on my way. Unfortunately somewhere along the way my Modem got wiped out so I had to go back into download mode to flash it, and I found a new issue. For some reason, my phone still refuses to enter download mode without a jig. So I put my jig in, and downloaded the modem. All is working now (except I still can´t figure out why I need a jig to enter download mode, and the recovery wont boot for me either. It just goes and boots up normally. Its like until the Rom is loaded, it doesn´t take any imput from the buttons. I´m now running an FF18 kernel, so I find this to be odd, but at least I have a working device. Now I´m off to buy myself a nice memory card to compensate for the lost 8 gigs. The only thing that I can think of that may be causing the no download mode issue (although I can´t see why or how) is that I had a custom splash screen (not boot animation, splash screen) before I corrupted my emmc. Throughout the whole process of restoring, it displayed my custom one, except when I put on EL26, it went back to the Normal Boot screen. (the only time since the emmc screwed up that my buttons responded) But when I flashed back up, the custom one came back, and my controls to get into recovery and download mode stopped working again.

Stuck on Google Screen - Restore Didn't Work

Good Morning All -
A few days ago, I dualbooted my N7 with Ubuntu. The installation went fine and the tablet was working with no issues over the last several days. Last night, I was using the tablet and set it down. I went to pick it up (roughly 5 minutes later) and the touch screen was unresponsive. I was at the lock screen but couldn't get it to unlock. I pushed the wrong key-combo first and the device took a screen shot.
I was able to reboot into fastboot and attempted to go to recovery. The device would just hang at the Google logo. I pushed a factory firmware update from my Ubuntu system and attempted to reset -- no joy. This morning, I used Nexus Root Toolkit from my Windows 8 machine to see if I could get it up. Root Tool kit worked fine, pushed the images over again and restarted but it continues to hang at the Google logo.
Looking for any other advice folks may have on getting the device to boot.
EDIT: I can get to the bootloader fine and the computer recognizes it.
Thanks!
Alright... I just attempted using NRT and flashing 4.4.2 instead of 4.4.3 to see if it would run through. No joy, again. Remains on the Google screen.
xbi0s said:
Alright... I just attempted using NRT and flashing 4.4.2 instead of 4.4.3 to see if it would run through. No joy, again. Remains on the Google screen.
Click to expand...
Click to collapse
Im having the same problem with an unlocked unit. I would bet if you tried to do a factory reset in the android recovery menu it would give you a huge error all having to do with cache.
antonio824 said:
Im having the same problem with an unlocked unit. I would bet if you tried to do a factory reset in the android recovery menu it would give you a huge error all having to do with cache.
Click to expand...
Click to collapse
I'm unable to get into the restore menu. Hangs at the Google logo when attempting to get there.
I've tried about any solution I could find... Bumping one last time before I torch the unit :\
Nothing can be done. Its something inside. If its the 2013 model, call and get it rma'd. Sorry man.
Sent from my LG-LS970 using XDA Premium HD app
Resurrecting this thread to keep a work log.
I made have made some progress but hitting another roadblock. I've been holed up at home due to an auto accident so I started tinkering with the N7 2013 again.
Using the Nexus Root Toolkit, I am able to launch "Boot Temporary - Custom Recovery" from the advanced options. The problem I now run into is TWRP's touchscreen will not work. I attempted to do volume up/down to see if I could select but it wouldn't. The software is not frozen as I can see the temperature changing.
Anyone have any thoughts or information on how to boot another custom recovery that uses button inputs? I appreciate any input.
Updates:
1. I was able to push TWRP via "fastboot flash recovery." It went to the Google Logo then loaded TeamWin screen. I started to see errors when the program launched. "Unable to mount..." multiple times then the device rebooted. Device stuck on the Google screen.
2. Shut the device down, booted back into Fastboot. Selected Recovery and it began loading again. This time, the app launched and worked. Touchscreen does not work but the CPU temp is fluctuating and minutes tick up.
Update 4:49PM Central:
1. I am able to install and boot into TWRP 2.8.0.1 through TWRP 2.7.1.1. Those versions load but of course touch screen does not work.
2. I have been unable to get CWM to load... It installs fine but I cannot boot into.
3. The factory recovery images also do not load.

[Q] 'Secure boot Error!' at boot, download mode and factory reset don't work

Hello,
Here is what led to my issue:
I rooted my phone using this method: http://forum.xda-developers.com/showthread.php?p=38886073#post38886073
Downloaded clockwork rom manager.
Here comes the thing I don't remember. At least i know that the last thing i did was to click on 'backup current rom'
After this the phone reset itself and this message came up:
Secure booting error!
Cause: boot certification verify
Then i tried to reset using the power button, which led me to the 'battery full' screen - afterwards i was able to reboot. As stupid as I am I just tried the same thing again. And ever since i am stuck at the 'Secure booting error!' screen.
I am unable to enter download mode. I get to the 'Hard factory reset' screen, but if i accept doing so, it says 'Secure booting error!' again.
I also remember clicking on 'restart into recovery mode' at some point, but this is not the last thing i did.
I am really desperate. Please, help me!
Well i had the same issue today... It happened after i did two changes. One of them was to to try to relock from freegee and flash twrp again from freegee. In my case i was able to go in download mode and flash original kk rom with lg flash tool.
Unfortunatly, trying to boot in downloadmode, i still get the same error :/
Jubi-Wan said:
Unfortunatly, trying to boot in downloadmode, i still get the same error :/
Click to expand...
Click to collapse
How are you trying to boot into download mode? And what factory reset screen? It seems as though you did not unlock the bootloader using freegee, if you make any changes and relock the boot loader you will get that error. But it seems that it has not been unlocked. If you hold power and volume up what happens? Same thing when power and volume down, one of them is recovery (possibly factory reset you are seeing) and the other is download mode. I don't remember right now but you should read the whole softbrick thread and see if you are missing something. You may need to use LGPNST to go back to stock, you can also use that program to flash a new recovery so read carefully and follow all steps.
When this happened to me I was able to flash an unlocked bootloader and it allowed me to use my phone again as it was before doing something stupid (for me it was an attempt to re lock the bootloader).
well, i managed to get into download mode. Obviously i used the wrong method to get into download mode...
I used this method and everything worked fine, so far. : http://forum.xda-developers.com/showthread.php?t=2249500
My phone doesn't boot now. Fast Boot doesnt work aswell.
All that happens is a white battery showing on the screen and when i try to fastboot all that happens is that the LED is blinking or glowing red after some while.
Jubi-Wan said:
well, i managed to get into download mode. Obviously i used the wrong method to get into download mode...
I used this method and everything worked fine, so far. : http://forum.xda-developers.com/showthread.php?t=2249500
My phone doesn't boot now. Fast Boot doesnt work aswell.
All that happens is a white battery showing on the screen and when i try to fastboot all that happens is that the LED is blinking or glowing red after some while.
Click to expand...
Click to collapse
What do you mean when you try to fastboot? Fastboot is basically the bootloader and allows you to select recovery or download mode. What you should have done after following that thread is go to recovery and wipe everything and flash a new ROM.
If you are saying that the bootloader is not coming up and allowing you into recovery then I believe something was missed.
After trying out some varioants of this it worked: http://forum.xda-developers.com/showthread.php?p=40274560&highlight=red+led#post40274560
I wiped the phone, but since I had to leave over the weekend i just turned it off and went away.
Now that I am back, nothing works now :/ The Phone doesnt react to anything, not even donwload-mode.
Is the battery too low maybe? It's on the wall now for a few hours, but it still doesn't react. It's not warm either.
edit:
when i charge the phone, i will get a 'watchdog bark' after some time allowing me to get into recovery. accesing downloadmode from there doesn't do anything. strangely, the recovery isnt trwp although it should be because teenybin comes with it. it's 'bbs.gaodi.net' which doesn't have a sideload feature. what do i do now?
edit2:
after 10000 tries i got into download mode. i don't want to **** up now so i won't do anything until i know exactly what to do.
any advice?
edit3:
got it working by flashing another teenybin which included trwp - then i installed miui via sideload. i don't have signal though, but i will open another thread for this since this is another issue.

Bricked and Undetected!!!

So I recently bought the Korean LG G3 (F400) and the first thing I did was rooting it, which was a breeze. Of course to root it I needed to install the LG Mobile Drivers, which I did and were working completely fine. Then I decided to take a little risk and attempt to flash CWM recovery (I did not know that I need to unlock the bootloader first or BUMP! the device) and well, flashed it the same way I flash stuff on my previous Samsung phones.
So now, when I try to boot the phone, I get the LG Logo and goes through with the boot animation, but after a little less than a second the boot animation fails and I get a black screen + the LED flashing blue and green and the phone remains like that. I tried factory reset but after I click yes it shows the LG logo then goes into a black screen (without the boot animation) + LED flashing blue and red.
So I tried finally going into download mode and attempting to return it to stock via LG Flash Tools, and like I said before the drivers were installed, but when I connect the phone to the PC it gives the message "Drivers were not successfully installed" and the LG Flash Tools fails to detect the phone. I checked within Device Manager and it says the LGE MTP device "cannot start".
So I'm pretty much stuck with a phone that doesn't boot, can't flash anything via adb or flash tools and no recovery installed. Can anyone suggest anything I can do to get this beast back up?
Try using this method http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359

Nexus 5X bootloop

Hello,
I was watching YouTube when my phone froze and wouldn't respond. I detached the battery and reset it but it would freeze on the 'Installing update' screen even though I didn't try to update the phone. I wiped the cache and data but now it just gets stuck on the 'Google' boot screen.
I can get into the fastboot and recovery modes but the phone won't connect to the PC to allow me to try to sideload. In device manager it appears as "Android" with an exclamation mark next to it. I've tried wiping every instance of Google's drivers and tried both Google and LG drivers but neither seem to work.
I can get it to detect the phone in LGUP using download mode but my phone is H798 and I don't want to go flashing H791 TOT files if it's going to brick the phone. I also want to make sure it's a hardware bootloop before trying the hair dryer method.
Any help appreciated,
Thanks.
my nexus5x randomly shut off and now its completely bricked.
cant acces TWRP and have tried installing stock files but it doesn't seem to work.
Have you found a solution yet?
Anyone know any options?

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