[HELP]Black Screen on VK810 - G Pad 8.3 Q&A, Help & Troubleshooting

I'm not that familiar with LG devices (usually messing with Samsung) so hope I didn't just brick this thing. The device is a VK810 and before flashing was rooted w/stock 4.4.2 on it and stock recovery. Installed TWRP, performed wipes of system, data, internal, and format in preparation for new rom. Then flashed this stock rom: http://forum.xda-developers.com/lg-...-stock-rooted-lollipop-rom-int-g-pad-t3079312 and then flashed SuperSU. Rebooted but system never comes up. Nothing. Not boot screen, LG logo, nothing. Device was at 97% battery before flashing and have tried plugging into power cord and holding down combination of buttons. Cannot get into download mode or anything else. When the device is plugged into the PC via USB I hear it connect and when holding the power button it will disconnect and reconnect in a loop. However, the screen is always black.
Tried this also with no luck so far:
rockbigdave said:
Although I didn't try and flash what you did, I wasn't able to put mine into Download mode to recover it either and only received a black screen! Turned out it was just ridiculously low on charge. I knew it was 'working' because with a USB cable in to the PC and holding the power button on the tab it was making connect and disconnect noises. Your best bet is to plug it into the mains charger and hold the power and/or power + vol down (I'm not sure what worked, I did a combination) until you get an LG logo. when you get to that, let it charge fully. (You should see the battery logo on screen)
Shouldn't have a problem once it's fully charged.
Click to expand...
Click to collapse
So is this tablet a brick now or is there a way to recovery? Not sure how just flashing a rom/kernel bricks a tablet and prevents the screen from coming on. The bootloader did not get updated or messed with as far as I know.

Hi. Sorry to say but you flashed a ROM for the V500 international variant of the G Pad 8.3, which is incompatible work the VK810.4G variant. There's a third variant, the V510 as well.
Even if the screen is blank does the PC indicate the right entry in the tablet in the Modem section, if you go through the motions of putting the tablet in Download mode, which are to have the original USB cable into USB 2.0 port, with the tablet completely off (hopefully), press and hold the Up Volume button and while holding it, connect the other end of the USB cable to the tablet. You should be able to let go of the up volume button now.
Then try LG Flash Tool 2014 with the 11A KDZ from my signature. 11A is both easiest to root and to install TWRP. If you get that far you can flash my ROM from my signature, make sure you have TWRP updated to v2.8.7.0 before doing so and follow the directions on the OP of my ROM thread.

roirraW "edor" ehT said:
Hi. Sorry to say but you flashed a ROM for the V500 international variant of the G Pad 8.3, which is incompatible work the VK810.4G variant. There's a third variant, the V510 as well.
Even if the screen is blank does the PC indicate the right entry in the tablet in the Modem section, if you go through the motions of putting the tablet in Download mode, which are to have the original USB cable into USB 2.0 port, with the tablet completely off (hopefully), press and hold the Up Volume button and while holding it, connect the other end of the USB cable to the tablet. You should be able to let go of the up volume button now.
Then try LG Flash Tool 2014 with the 11A KDZ from my signature. 11A is both easiest to root and to install TWRP. If you get that far you can flash my ROM from my signature, make sure you have TWRP updated to v2.8.7.0 before doing so and follow the directions on the OP of my ROM thread.
Click to expand...
Click to collapse
Unfortunately pressing any button and plugging in the USB cable shows nothing on the screen. The PC chimes when it is connected and disconnected but that is all. Can't remember if there is a charging light on the tablet but when plugged into the wall charger nothing lights up. If the tablet is plugged into the PC and power button pressed it will chime connect and disconnect in a loop.
I realize now the rom was not for this version but wish someone could tell me how just flashing a rom/kernel combination (with no bootlooder changes) causes the tablet to not even power on. Doesn't make sense. Will probably have to send it in for repair cause it seems I've tried everything.

CCallahan said:
Unfortunately pressing any button and plugging in the USB cable shows nothing on the screen. The PC chimes when it is connected and disconnected but that is all. Can't remember if there is a charging light on the tablet but when plugged into the wall charger nothing lights up. If the tablet is plugged into the PC and power button pressed it will chime connect and disconnect in a loop.
I realize now the rom was not for this version but wish someone could tell me how just flashing a rom/kernel combination (with no bootlooder changes) causes the tablet to not even power on. Doesn't make sense. Will probably have to send it in for repair cause it seems I've tried everything.
Click to expand...
Click to collapse
I haven't downloaded the ROM so I don't know what it contains. Are you sure it doesn't contain a bootloader? Did you look inside the zip to see if there's an aboot.img in it? On the VS985 G3 (and my VK810 ROM which I based on @hsbadr 's JasmineROM), all stock based ROMs contain the proper bootloader.
On @xdabbeb 's VS985 v2.0 ROM, the bootloader is in the bootstack flashable zip and not in the ROM zip, but the instructions are too flash the bootstack zip too.
There's other partitions than the bootloader that would cause a catastrophic issue sick as your experiencing. Why exactly? Can't say other than simply that the ROM contains partitions made for another device, they're incompatible and therefore makes your device not work at all.
I figured your only option would be to have it repaired. You could say it happened while or after using the official LG recovery tool under Windows.

Okay, I went ahead and downloaded the ROM. As you said, it doesn't contain a bootloader but it does have the rpm and tz partitions. According to rpm = elf binary/power management, tz = elf binary/QCom trustzone secure exec[/QUOTE]
I would guess that those two would totally hose being flashed on the wrong device if the kernel doesn't. Just a guess, though.

roirraW "edor" ehT said:
Okay, I went ahead and downloaded the ROM. As you said, it doesn't contain a bootloader but it does have the rpm and tz partitions. According to [URL="[/URL]:
I would guess that those two would totally hose being flashed on the wrong device if the kernel doesn't. Just a guess, though.
Click to expand...
Click to collapse
I see your point but even with the wrong kernel a tablet should charge when turned off. Should be no software running whatsoever to prohibit that.
Anyways, I sent the tablet back to LG for repair. They stated it has a charging issue. Should be getting it back soon and will for sure flash the correct stuff on it this time.

CCallahan said:
I see your point but even with the wrong kernel a tablet should charge when turned off. Should be no software running whatsoever to prohibit that.
Anyways, I sent the tablet back to LG for repair. They stated it has a charging issue. Should be getting it back soon and will for sure flash the correct stuff on it this time.
Click to expand...
Click to collapse
I disagree. When Android devices are off, and you plug them in to charge them, at least for a bit when the battery charging animation loads and runs, something is running, and the files used for that device off battery charging animation are located with the rest of the Android system files.
Cool, hope you have as good experience with their RMA service as I did.

Related

[Q] [Help] How to fix SGT 3 10.1 (WiFi) not turning on

Hey guys, My Samsung Galaxy Tab 3 10.1 (Wifi) Won't turn on anymore. Don't even charge! My brother was playing minecraft until my Tablet's life reach 0% (Died). Then I charged it, It's still charging after 30 mins of charging I turned it on then the SAMSUNG GALAXY TAB 3 logo appear (Start-Up) but it fails like it shutted down. I tried charging it again but it wont charge anymore nor turn on, I'm not using any ROM but i rooted my SGT 3 10.1
Anyone knows how to fix this? Please help asap!
Try different charger, usb cable, leave it for a while then try charging it, plug it into computer usb port or plug out sd card then try
Sent from my SM-T210R using Tapatalk
Ripshock said:
Try different charger, usb cable, leave it for a while then try charging it, plug it into computer usb port or plug out sd card then try
Sent from my SM-T210R using Tapatalk
Click to expand...
Click to collapse
Okay, Gonna try those now and hope something will fixed this. I'll reply if it works or not soon
Edit :
Be right back in 2 hours to check everything.
Edit Again :
My Tablet is fixed now, Thanks dude.
What I did is stopped charging for 10 minutes then i charged it using PC/Laptop then waited 1 hour, then charge it on normal then it started to charge and turned on. but again, stuck on SAMSUNG GALAXY TAB 3 logo then shut down....
None of those works. Any other idea?
I would do the process over again. But do not start the tablet. See if you can get into recovery mode (Vol+ / Power) or download mode (Vol- / Power). If that is successful then leave it there for awhile. Power off and try again. If good, then I would reload the OEM Rom or a backup that you may have. But I would not try powering the unit again. There might be a corrupt file caused by the initial improper shutdown.
It got even Worse, I tried to do the process again but it DOESNT turn on or Charge anymore. I waited 1 hour then charge, still, charge 2 hours, still. What to do now? Theres no helper here on our village except me so please help me
If your device is not charging then I wonder if it is the charger and not the device. I don't think the battery could go bad that fast. I could be wrong, but I don't think. So that leads me to believe that your charger possibly is not working like Ripshock mentioned.
Is the charger the OEM that came with the Tablet?
If not, can it produce 5vdc @ 2 amps?
What about the USB cable, is it OEM that came with the Tablet?
If not, is it wired correctly and can it handle 2 amps?
Regardless of how you answered the questions, I would seek another source for charging. I don't think the PC will charge. I don't believe the USP ports are setup to handle that much current. I could be wrong, but again, you might seek out another source for charging.
UPC won't charge tab. It has to be plugged into an eletrical outlet
Brian D said:
If your device is not charging then I wonder if it is the charger and not the device. I don't think the battery could go bad that fast. I could be wrong, but I don't think. So that leads me to believe that your charger possibly is not working like Ripshock mentioned.
Is the charger the OEM that came with the Tablet?
If not, can it produce 5vdc @ 2 amps?
What about the USB cable, is it OEM that came with the Tablet?
If not, is it wired correctly and can it handle 2 amps?
Regardless of how you answered the questions, I would seek another source for charging. I don't think the PC will charge. I don't believe the USP ports are setup to handle that much current. I could be wrong, but again, you might seek out another source for charging.
Click to expand...
Click to collapse
tones160 said:
UPC won't charge tab. It has to be plugged into an eletrical outlet
Click to expand...
Click to collapse
As I suspected, but I thought I read somewhere that the PC can be setup to do just that on the USB port. Key phrase is "thought I read".
Nah. For some reason the tablet can't charge and transmit data through the cable at the same time unlike our phones and other devices. Personally i think it's stupid that it won't charge but hey that's how they were made lol. I use a very good cable too.
Brian D said:
As I suspected, but I thought I read somewhere that the PC can be setup to do just that on the USB port. Key phrase is "thought I read".
Click to expand...
Click to collapse
Well, I have been to this situation more than once (Galaxy Tab 3 10.1 and Galaxy Tab 2 7.0, which are both family tablets). Do a "force boot"
Steps:
1.) Leave it there for, like, 4 hours or while it is charging do step 2.
2.) Now, press the power, volume up, volume down and home button together, until the it boots up completely
3.) Charge the tablet again..
Easy as that.. If that does not work, remove the battery inside (You need to have proper tools and a hand that can search youtube)
or, even if that does not work, your brother may have screwed something up (Either by dirty flashing another ROM or by doing some dangerous system modifications).. Your last hope is the repair shop (If you have warranty, send it back to a SAMSUNG REPAIR SHOP and act dumb, they will fix it for you, free of charge.)
I am not 100% sure here, but I don't think pressing the home key while using the power and vol keys will do anything. I believe that to be a process found on some of the other Samsung devices, but not the P5210. I personally have not tried it and I really don't want too knowing right now that my machine is working just fine. Would hate to do something that I cannot reverse.
- Mᴏʀᴏɴ - said:
Well, I have been to this situation more than once (Galaxy Tab 3 10.1 and Galaxy Tab 2 7.0, which are both family tablets). Do a "force boot"
Steps:
1.) Leave it there for, like, 4 hours or while it is charging do step 2.
2.) Now, press the power, volume up, volume down and home button together, until the it boots up completely
3.) Charge the tablet again..
Easy as that.. If that does not work, remove the battery inside (You need to have proper tools and a hand that can search youtube)
or, even if that does not work, your brother may have screwed something up (Either by dirty flashing another ROM or by doing some dangerous system modifications).. Your last hope is the repair shop (If you have warranty, send it back to a SAMSUNG REPAIR SHOP and act dumb, they will fix it for you, free of charge.)
Click to expand...
Click to collapse
Yep, I did those steps. and it's turning on now. but i cant start it up. When I open it, it goes to TWRP mode. This happens when I wipe all my phone cache,dalvik,etc (everything) then when i restarted the system it says "no OS installed, still continue?" I choose yes, then it said "your tablet's root could be corrupted, want to install a fresh new one?" I choose yes then my tablet restarts but on TWRP again, I install a rom named Pimpdroid then restarted the tablet, still the same (Always go to TWRP mode even i'm not press power+up volume+home bottom together) Just the power button but it goes to TWRP mode, i tried installing other roms but its still the same. If you can't understand properly due to my poor english. I can make a video on it if u r willing to help me. I really need help guys since theres no repair shop here its just an island!
Does anyone experienced this problem already? or does anyone knows how to fix this problem? Help me please
RazerKnight17 said:
Yep, I did those steps. and it's turning on now. but i cant start it up. When I open it, it goes to TWRP mode. This happens when I wipe all my phone cache,dalvik,etc (everything) then when i restarted the system it says "no OS installed, still continue?" I choose yes, then it said "your tablet's root could be corrupted, want to install a fresh new one?" I choose yes then my tablet restarts but on TWRP again, I install a rom named Pimpdroid then restarted the tablet, still the same (Always go to TWRP mode even i'm not press power+up volume+home bottom together) Just the power button but it goes to TWRP mode, i tried installing other roms but its still the same. If you can't understand properly due to my poor english. I can make a video on it if u r willing to help me. I really need help guys since theres no repair shop here its just an island!
Click to expand...
Click to collapse
When it asked to reinstall the root, say NO. Then power off the unit. Do not try and run the tab at this time. There is no OS. Start the tab in download mode. Connect to PC and start ODIN. Load the OEM Rom. This is the only way to get things back to normal unless you have saved a backup. If you have a back up, then start the tab in recovery mode (TWRP/CWM) and restore from backup.
I would recommend NOT installing Pimpdroid or any other rom until you have a fully operational tablet again. Best to always start from a fresh OEM Rom.
What is OEM Rom? and where can I download it?
OEM = Original Equipment Manufacture
OEM Rom is the firmware that was developed by Samsung and is the only official Rom for your device. All the other roms that are developed here are done so with caveats placed on them. Mainly that the roms can damage your device or brick it (cause it to fail completely).
Original firmware (OEM Rom) can be found here. In the search window just enter the model number of the device you have. In this case that would be P5210. It will take several hours to download the rom as it is huge, on the order of 1.9GB. Just be patient. It is always a good idea to have the OEM Rom safely tucked away on you computer for situations like this.
Brian D said:
OEM = Original Equipment Manufacture
OEM Rom is the firmware that was developed by Samsung and is the only official Rom for your device. All the other roms that are developed here are done so with caveats placed on them. Mainly that the roms can damage your device or brick it (cause it to fail completely).
Original firmware (OEM Rom) can be found here. In the search window just enter the model number of the device you have. In this case that would be P5210. It will take several hours to download the rom as it is huge, on the order of 1.9GB. Just be patient. It is always a good idea to have the OEM Rom safely tucked away on you computer for situations like this.
Click to expand...
Click to collapse
It's just like a rom? after downloading ill just install it like other roms?
and, Which country firmware should I download? There are tons of Country but the same rom
You will download the version for your country. I have no information about your whereabout. So you will have to find the rom for your country or region of the world.
You will need to extract the MD5 file from the zip and place it on your computer. Once extracted, you will open ODIN and load the MD5 file into the PDA slot and upload it to your device. Don't worry about the SS_DLL file. It will take some time to load into ODIN and then some time to load into your device. Do not stop the upload or interrupt. Once loaded, you will then restart your device and configure it like it was brand new out of the box.
The standard recovery will be loaded also. If you desire to load TWRP or CWM, you can if you want. You can also root the device. But I would not recommend loading any of the other roms until you get a better understand of what that rom does and how to load it. There are many posts on XDA that tell you how to load an OEM (stock) Rom. Just do a search for them. No need to be redundant here.
Just be careful.
Brian D said:
You will download the version for your country. I have no information about your whereabout. So you will have to find the rom for your country or region of the world.
You will need to extract the MD5 file from the zip and place it on your computer. Once extracted, you will open ODIN and load the MD5 file into the PDA slot and upload it to your device. Don't worry about the SS_DLL file. It will take some time to load into ODIN and then some time to load into your device. Do not stop the upload or interrupt. Once loaded, you will then restart your device and configure it like it was brand new out of the box.
The standard recovery will be loaded also. If you desire to load TWRP or CWM, you can if you want. You can also root the device. But I would not recommend loading any of the other roms until you get a better understand of what that rom does and how to load it. There are many posts on XDA that tell you how to load an OEM (stock) Rom. Just do a search for them. No need to be redundant here.
Just be careful.
Click to expand...
Click to collapse
Well, This is pretty weird. There's no Philippines (Which is my country) OEM rom and on the Tablet, it wont go to Recovery mode or Download mode. because when I charge my tablet it automatically opens then go to TWRP. When i turned it off it goes to normal charging. Then when I try to open it using this (Power button+volume up+ Home) it still goes to TWRP mode. How to fix this?

Need help ASAP, can pay for you to fix my phone

Apparently my phone is bricked..
I rooted my phone a long time ago when I first got it, never installed any roms or anything.
I get this message on the LG Screen:
"Secure Booting Error problem
Device UnLock!!, so Boot Success!!"
I've tried multiple ways to fix my phone and I can't get any of them working.
I'd be happy to pay the person in a steam game of your choice!!!!
Thank you
AustinBobDox said:
Apparently my phone is bricked..
I rooted my phone a long time ago when I first got it, never installed any roms or anything.
I get this message on the LG Screen:
"Secure Booting Error problem
Device UnLock!!, so Boot Success!!"
I've tried multiple ways to fix my phone and I can't get any of them working.
I'd be happy to pay the person in a steam game of your choice!!!!
Thank you
Click to expand...
Click to collapse
If you use lg flash tool to go back to stock it should work.
2SHAYNEZ
shayneflashindaily said:
If you use lg flash tool to go back to stock it should work.
2SHAYNEZ
Click to expand...
Click to collapse
I tried but the drivers won't install correctly. They did once, but it just said something along the lines of "Ready", and never did anything even after plugging and unplugging.
AustinBobDox said:
I tried but the drivers won't install correctly. They did once, but it just said something along the lines of "Ready", and never did anything even after plugging and unplugging.
Click to expand...
Click to collapse
Uninstall and reinstall drivers ... Try different computer. Lg flash tools should fix your problem . goodluck
2SHAYNEZ
AustinBobDox said:
I tried but the drivers won't install correctly. They did once, but it just said something along the lines of "Ready", and never did anything even after plugging and unplugging.
Click to expand...
Click to collapse
That message upon boot is normal if your phone has been modified. Mine says it too and my phone is booting up perfectly fine. In fact, it always has said that from the day I first modified it.
Most likely your software is just bricked. First of all, BE HAPPY YOUR PHONE IS JUST SOFT BRICKED! :laugh:
(I recently hard bricked my phone by accidentally flashing a file for a completely different phone... phone was completely dead!)
You need to provide more info for anyone to help you, whether it's me or someone else:
1) What phone are you using? E980, E988, E986, F240, etc etc.
2) Do you have a custom recovery, like CWM or TWRP? (I'm hoping you are because getting software back will be easier).
2.1) Can you boot into this recovery? (hold volume up and power button at the same time. The boot animation will begin and the screen will then shut off again. Once it does, let go of the power button, but keep holding the volume up key. The phone should reboot into recovery. It's tricky to do, and if any other readers notice that I described it wrong, please correct me!)
3) Do you ever see the LG boot animation? (The animated LG logo)
4) Once you see that message upon boot, do you wait for it to pass and hope the phone boots, or do you panic and force the phone off?
5) To get the drivers to install for using LG FlashTool, have you done the following?
- First download and install the drivers from the LG site (I'd link you to it, but I only know the link to the E980 drivers. I don't know what phone you have).
- Once installed, plug your usb cable into your computer, but not the phone.
- Hold the volume up and volume down buttons at the same time while plugging the usb cable into the phone
- Phone should now boot into Download mode and your computer will start installing more drivers. Let them install.
- Change the Com port of the phone to Com41 (ask if you don't know how to do this)
- Continue using the LG Flash Tool.
I apologize if any of this sounds like I'm insulting your Android phone intelligence. I don't know how much of this stuff you know.
spexwood said:
That message upon boot is normal if your phone has been modified. Mine says it too and my phone is booting up perfectly fine. In fact, it always has said that from the day I first modified it.
Most likely your software is just bricked. First of all, BE HAPPY YOUR PHONE IS JUST SOFT BRICKED! :laugh:
(I recently hard bricked my phone by accidentally flashing a file for a completely different phone... phone was completely dead!)
You need to provide more info for anyone to help you, whether it's me or someone else:
1) What phone are you using? E980, E988, E986, F240, etc etc.
2) Do you have a custom recovery, like CWM or TWRP? (I'm hoping you are because getting software back will be easier).
2.1) Can you boot into this recovery? (hold volume up and power button at the same time. The boot animation will begin and the screen will then shut off again. Once it does, let go of the power button, but keep holding the volume up key. The phone should reboot into recovery. It's tricky to do, and if any other readers notice that I described it wrong, please correct me!)
3) Do you ever see the LG boot animation? (The animated LG logo)
4) Once you see that message upon boot, do you wait for it to pass and hope the phone boots, or do you panic and force the phone off?
5) To get the drivers to install for using LG FlashTool, have you done the following?
- First download and install the drivers from the LG site (I'd link you to it, but I only know the link to the E980 drivers. I don't know what phone you have).
- Once installed, plug your usb cable into your computer, but not the phone.
- Hold the volume up and volume down buttons at the same time while plugging the usb cable into the phone
- Phone should now boot into Download mode and your computer will start installing more drivers. Let them install.
- Change the Com port of the phone to Com41 (ask if you don't know how to do this)
- Continue using the LG Flash Tool.
I apologize if any of this sounds like I'm insulting your Android phone intelligence. I don't know how much of this stuff you know.
Click to expand...
Click to collapse
No, no I understand!
1)E980
2)I have TWRP.
3)I only see the LG Logo, the error message and that's it, it goes right to TWRP after that.
4)I wait for it to pass, and it goes to TWRP.
5)I will try this on a different PC, because when I boot into download mode and plug in the phone, the drivers attempt to install but fail. I have attempted to re-install them multiple times, but I'll give it a shot on my laptop tonight, and let you know if that works.
Thanks for the help, and I may PM you later!
AustinBobDox said:
No, no I understand!
1)E980
2)I have TWRP.
3)I only see the LG Logo, the error message and that's it, it goes right to TWRP after that.
4)I wait for it to pass, and it goes to TWRP.
5)I will try this on a different PC, because when I boot into download mode and plug in the phone, the drivers attempt to install but fail. I have attempted to re-install them multiple times, but I'll give it a shot on my laptop tonight, and let you know if that works.
Thanks for the help, and I may PM you later!
Click to expand...
Click to collapse
Have to tried install cwm through twrp then wiping clean and installing a ROM ...
2SHAYNEZ
Me thinks his botloop is due to a bad rom flash, flash a rom(EZ kat is a good choice if you want the AT&T stock experience). follow shayne's instructions.
@AustinBobDox:
I know EXACTLY what the problem is. You ran into the notorious recovery bootloop, which seems to be happening to many Kitkat users running recoveries incompatible with KK.
I had it a few times myself while using CWM, PhilZ Touch, and TWRP (Yeah, I got them on all 3!)
Unfortunately, the TWRP and CWM recoveries posted in this forum cause this bootloop randomly if you have the stock Kitkat rom installed (whether rooted or not). Personally, I have not been able to get out of it. I ended up flashing a "fix" that was supposed to get me out of it, but... it was for a completely different phone (an HTC) and it hard bricked my phone.
SO DON'T FLASH ANY "FIXES"!!!!!!!!!
Technically, the ROM is perfectly fine. I read that this bootloop is caused by the phone setting a flag that tells it to boot straight into recovery. Basically, when you initiate the recovery boot, it sets this flag, and when you reboot the phone, it's supposed to clear the flag. In the case of this bootloop, it doesn't get cleared for some reason.
Luckily, since you are on TWRP, you can try this:
Open the TWRP command console thing (I think it's under Advanced or something).
Type this command EXACTLY:
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
DOUBLE CHECK YOUR SPELLING, SPACES, ETC!!
EDIT: I put a part in bold because it's .1
The decimal could easily have been missed if reading on a smaller screen or something.
Submit the command and try to reboot to system via the TWRP menu.
If this doesn't work, then you have no choice but to use the tot method once you get it working.
EDIT: Oh and before getting the drivers to install by plugging in the phone, install these drivers:
http://www.lg.com/us/support-mobile/lg-E980
(Look under Software Update tab)
Whether the command works or not, once you get the phone up and running again, install this recovery:
http://forum.xda-developers.com/showthread.php?t=2760895
It's the only recovery right now that's definitely working on Kitkat without the bootloop issue. The only downside is that it can't mount the external_SD, so anything you flash must be on the internal storage.
EDIT: Oh and in case you can't tell, don't flash this recovery! You install the APK in Android and then open the app and install recovery from there. You need to root first though.
---------- Post added at 03:48 AM ---------- Previous post was at 03:38 AM ----------
luisoman2000 said:
Me thinks his botloop is due to a bad rom flash, flash a rom(EZ kat is a good choice if you want the AT&T stock experience). follow shayne's instructions.
Click to expand...
Click to collapse
With this recovery bootloop, even if you flash a new rom, the bootloop could remain. I wasn't able to try a whole new flash, but I did try restoring a backup (different things, I know) and I still kept booting into recovery.
Oddly enough, this has happened to me on all cwm versions, flashing the hacked twrp was the only way i could get out of it. I use cwm to flash roms, twrp i only use when in bootloop or to flash mods.
Sent from my LG-E980 using Tapatalk
AustinBobDox said:
I tried but the drivers won't install correctly. They did once, but it just said something along the lines of "Ready", and never did anything even after plugging and unplugging.
Click to expand...
Click to collapse
Did you make sure under, device manager, your port is set to com 41 for your device?

[Q] Verizon LG G Pad VK810 Secure boot error. No TWRP

Before posting I tried looking through every thread after I searched for this but it seems that there was always TWRP to fall back on.
Here's my problem thus far. Rooted my G Pad on Lollipop successfully. Followed this guide after rooting, to install TWRP recovery.
http://forum.xda-developers.com/lg-g-pad-83/general/vk810-altev-complete-root-recovery-t3108260
Followed the first step to downgrade the aboot to 4.2.2, then restarted the tablet like an idiot as I glanced at the wrong browser tab with a different tutorial open. I did NOT follow the second portion of the tutorial to get TWRP even installed and I'm sitting here with the Secure Booting Error in the top left corner. Cannot access download mode, factory reset, normal reboot or safe boot without getting that error. Any help here at all or is this the first time I'm SOL with a device.
UPDATE!
Managed to actually get it into download mode after 20+ tries of just rebooting and trying. Will update if I can successfully reflash with LG Flash Tool or not.
You should be able to flash it no problem since you're in Download mode. FYI, although it doesn't work all the time, someone in my ROM thread found a way to flash aboot (for instance, to flash the Lollipop aboot so you could get back into the ROM) from Fastboot mode. That is, they found a way that sometimes works to get into Fastboot mode.
Also, there's a chance you could perform the required steps to get TWRP installed via ADB with the tablet in Download mode. Not sure, though, since I haven't tried it.
I can certainly experiment, now that I've realized I can fall back on download mode if things go wrong. Flashed the Lollipop KDZ with no problem in download mode so at least the tablet is up and running to take another crack at. Thanks a ton for actually having those KDZ's so readily available being linked in your signature.
Sayt123 said:
I can certainly experiment, now that I've realized I can fall back on download mode if things go wrong. Flashed the Lollipop KDZ with no problem in download mode so at least the tablet is up and running to take another crack at. Thanks a ton for actually having those KDZ's so readily available being linked in your signature.
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Cool, you're welcome mate!
roirraW "edor" ehT said:
Cool, you're welcome mate!
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Ended up just downgrading to 4.2.2, using towelroot, and loki_flash\twrp. Enjoying CM12 now. Will probably update the original post with instructions in case someone makes the same mistake as me for some reason.
I'm Having the Same Issue
I cannot get download mode to work. Just the Lg symbol, and secure booting error in top left.
I charged it overnight, plugged into a wall, with it off.
Held both vol keys while off, and plugged into cpu using the original/undamaged cable. Tried a different cable that also works, and tried plugging it into the computer both ways (OFF and plugged in the computer first, then the tab, and vice versa.)
Was there any other trick you had getting into DL mode???
Any help is appreciated.
UPDATE: So i left the tablet plugged in, and just kept rebooting it, and held just power and vol up, and now, in a barely visible screen, it says download mode, but my computer thinks there's nothing connected. With 2 different cables, and 2 different flash tools saying this, even with correct drivers installed.
segadennisis76 said:
I cannot get download mode to work. Just the Lg symbol, and secure booting error in top left.
I charged it overnight, plugged into a wall, with it off.
Held both vol keys while off, and plugged into cpu using the original/undamaged cable. Tried a different cable that also works, and tried plugging it into the computer both ways (OFF and plugged in the computer first, then the tab, and vice versa.)
Was there any other trick you had getting into DL mode???
Any help is appreciated.
UPDATE: So i left the tablet plugged in, and just kept rebooting it, and held just power and vol up, and now, in a barely visible screen, it says download mode, but my computer thinks there's nothing connected. With 2 different cables, and 2 different flash tools saying this, even with correct drivers installed.
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Hi, glad you at least found out the right button combo for Download mode. Can you be specific about the drivers you installed? Were they "LG_VZW_United_WHQL_v2.22.0.exe"?
Try rebooting after installing the drivers, with the tablet unplugged from the PC. After the reboot is finished, put the tablet in download mode and plug it into the PC. It can take up to 10 minutes to load the drivers once you plug it in. Use a USB 2.0 port preferably. Of the two cables you tried did you use the original cable? That's preferred, also.
You can look in Device Manager in Windows and see if the driver is still loading for the Android device listed under the "Modem" section. If after 10 minutes it still hasn't loaded the driver, try a different USB port. Lastly, if you need to, try a different PC. I know it's possible you don't have easy access to a different one, but sometimes that's the solution.

On latest OTA update, rooted with kingroot, now on SuperSu, stuck in booting at LG

LG gpad 8.3 vk810 . After installing a tweak for gaming graphics I stupidly bricked my tablet. Im new to rooting and android in general. The device gets stuck at LG symbol. I've tried clearing cache, and factory reset through holding the power and volume down. From what I've seen the next step would be to get it into download mode and use a LG utility, but I cant get it into download mode, also I imagine I need the right firmware once I do, Im very confused and just want to be able to use my tablet again. Thanks in advance.
Hi, did you look at my stickied guide for the VK810 in the General section?
Until you manage to get it into Download mode, there's nothing else to try. Perhaps some of the info I have in that thread will help you get that far.
roirraW "edor" ehT said:
Hi, did you look at my stickied guide for the VK810 in the General section?
Until you manage to get it into Download mode, there's nothing else to try. Perhaps some of the info I have in that thread will help you get that far.
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Sorry, I can't seem to find it. As you can see I joined the forum yesterday.
iflow43 said:
Sorry, I can't seem to find it. As you can see I joined the forum yesterday.
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In the General section, there's four "stickied" threads at the top. The thread I'm referring to has the title "[VK810.4G] [altev] most reliable way to root and install a custom recovery " and I also link to in my signature below.
I did look at it, I couldn't really find help there, truthfully I don't know what's going on even more than before haha. I cant get into download mode even by holding volume up and down then plugging in the usb, it just goes to the charging screen. Hell I wouldn't even mind no longer having root, I just wanted to be able to make use of my tablet while I'm still on contract till November. But thank you for the help. I believe I'm going to be using it as a paper weight until I can cancle that line through Verizon.
iflow43 said:
I did look at it, I couldn't really find help there, truthfully I don't know what's going on even more than before haha. I cant get into download mode even by holding volume up and down then plugging in the usb, it just goes to the charging screen. Hell I wouldn't even mind no longer having root, I just wanted to be able to make use of my tablet while I'm still on contract till November. But thank you for the help. I believe I'm going to be using it as a paper weight until I can cancle that line through Verizon.
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On the VK810, you don't hold both Volume buttons to get into Download mode. With the tablet off, you hold the Up Volume button only while plugging it into a PC's USB 2.0 port with the original cable. Keep holding the Up Volume button for a few moments and you should see the extremely dim "Download mode" logo in the center of the screen. Sometimes it's barely noticeable.
You already had the drivers installed, right? Then reboot the PC after installing the drivers.
The first time you plug the device in Download mode to a new USB 2.0 port, or can take up to 10 minutes for the PC to load the driver. You'll see the tablet listed in Window's Device Manager in the Modem section.
Pretty sure my guide I mentioned also tells the way to get into Download mode.
roirraW "edor" ehT said:
On the VK810, you don't hold both Volume buttons to get into Download mode. With the tablet off, you hold the Up Volume button only while plugging it into a PC's USB 2.0 port with the original cable. Keep holding the Up Volume button for a few moments and you should see the extremely dim "Download mode" logo in the center of the screen. Sometimes it's barely noticeable.
You already had the drivers installed, right? Then reboot the PC after installing the drivers.
The first time you plug the device in Download mode to a new USB 2.0 port, or can take up to 10 minutes for the PC to load the driver. You'll see the tablet listed in Window's Device Manager in the Modem section.
Pretty sure my guide I mentioned also tells the way to get into Download mode.
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I flashed 4.2.2 from you, installed twrp now im at the step of installing the 36b update downloaded from you with twrp, will i lose twrp when i do this? only reason i want to update is so i can chromecast my screen
iflow43 said:
I flashed 4.2.2 from you, installed twrp now im at the step of installing the 36b update downloaded from you with twrp, will i lose twrp when i do this? only reason i want to update is so i can chromecast my screen
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No sir, as my instructions give in both the threads for my ROM and my guide for the easiest way to root and put TWRP on the VK810, you'll still have TWRP. The only caveat is that every time you want to switch from being able to boot the 36B ROM, you'll have to temporarily re-downgrade your bootloader (aboot.img) to 4.2.2 *again*, just so you can get into TWRP. Then when you're done in TWRP, you have to flash the 36B bootloader zip that I provide otherwise the ROM won't boot. You'll continue to still be able to get into TWRP if you forget, until you remember to flash the 36B bootloader zip.

can i get some help???

ok, so here's what's going on:
Google nexus 2013 wont start up. It was previously Dead Dead, but its been charging, so it can start up now. However, i shuts down when i take it off the charger, but thats bc its not fully charged yet.
now for the real issue:
It seriously wont start up, it gets to the google logo, but it just shuts right back off after that. and sometimes, when i power it on, the google logo flashes on screen for less than a second, and then shut off immediately afterward, and i can't get to the bootloader when that happens.
when i AM able to get into the bootloader, i've tried everything. i wasn't going to factory reset, but when all failed, i tried it. But even THEN it didn't work. instead of bringing me to the next page, it just shut off again. can I get some help pls? (BTW it isn't charging with the cable it came with, its charging with a samsung j7 charger, but i made sure that its working)
If it turns on at all, then it isn't completely broken I believe. Have you tried the re-stock method shown in the forum? You just run the .bat file inside it and it'll flash you back to the latest stock firmware. It is supposed to fix any soft-brick issue.
gman88667733 said:
If it turns on at all, then it isn't completely broken I believe. Have you tried the re-stock method shown in the forum? You just run the .bat file inside it and it'll flash you back to the latest stock firmware. It is supposed to fix any soft-brick issue.
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How? i can't get it to connect to my pc via USB because USB debugging is off. I also need to get the official nexus 7 charger because it's not charging at all and i can't get it on.
Ah, you didn't mention usb debugging wasn't enabled... Hopefully someone will be along asap with a better solution
Justneedsomehelp said:
How? i can't get it to connect to my pc via USB because USB debugging is off. I also need to get the official nexus 7 charger because it's not charging at all and i can't get it on.
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You don't need official charger. Any is suitable.
Any microusb in good working order should work. Check the charging port is free of lint and other dirt so the connection is good. Is the device showing that it is charging? Even off it should show that it is taking a charge. If not, and you are certain the charger is in good condition and seated properly then it may be a faulty or failed battery. I know mine is going, just won't hold a charge very long. If you can get into the bootloader, you can fastboot the factory packages regardless of adb debugging being enabled. You just can't flash non signed images unless you are bootloader unlocked. If you can boot into bootloader then fastboot back to stock would be my suggestion to start.

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