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.
Click to expand...
Click to collapse
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.
Click to expand...
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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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Click to collapse
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.
Related
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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Click to collapse
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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Click to collapse
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.
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.
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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.
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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.
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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.
i rooted my us cellular uk410, got in a hurry and installed TWRP zip to the boot image zip slot and never boots. now it's essentially soft bricked. is there any way to recover my tablet?
Does it go into Download mode and do they provide KDZ files for your device?
roirraW "edor" ehT said:
Does it go into Download mode and do they provide KDZ files for your device?
Click to expand...
Click to collapse
when I try, it displays the TWRP launcher screen where the LG logo should come up. the screen is unresponsive. I tried using the lg recovery tool. doesn't work. however the tablet does show up on my in my menu and I can get to internal storage.
I cannot turn the tablet off, I have to let it die on it's own. it never goes to sleep either.
magnumglock said:
when I try, it displays the TWRP launcher screen where the LG logo should come up. the screen is unresponsive. I tried using the lg recovery tool. doesn't work. however the tablet does show up on my in my menu and I can get to internal storage.
I cannot turn the tablet off, I have to let it die on it's own. it never goes to sleep either.
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I'm sorry mate. If you can't it into Download mode I don't know any other options. You installed the right drivers for your device on Windows? Rebooted the PC after installing the driver (with the tablet disconnected)? Attempt to put the tablet in Download mode - it can take up to 10 minutes for Windows to load the driver every time you try to connect the same device to a different USB 2.0 port. Are you using a USB 2.0 port? Preferably one right off the motherboard and not through a hub? Using the original USB cable?
Those are my last ideas. If it shows up at all it should show up in the Modem or Ports section of Device Manager. If it shows up as QHSUSB_BULK, google that term and you might find a way to recover.
I was able to install CM boot animation, then install CM 12.1 for v410 and so far so good.
magnumglock said:
I was able to install CM boot animation, then install CM 12.1 for v410 and so far so good.
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Well awesome!
i installed cm14.1 today from the cyanogenmod website i had everything running fine until i reboot into recovery. i got a black screen and it didnt bot into recovery at all so i held my power button and volume down and nothing happens. i cant even boot up into fast boot or anything. nothing is turning my phone on. when i connect it to my pc nothing happens. is there anything i can do?
There's a mega unbrick guide for the OnePlus 3, use that then install the correct firmware and install the custom TWRP and re flash the ROM
i tried that method but the device doesnt even show up on my pc
envious86 said:
i tried that method but the device doesnt even show up on my pc
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Click to collapse
Get this sorted yet? You'll need a modified TWRP recovery for the newest CM based builds. I went through the same thing yesterday or the day before. Try holding volume down and power for like 30 seconds until you feel it vibrate that it is rebooting. Then hold volume *UP* while it reboots or if you see the "your device is not safe..." flash screen hurry and press volume down and go into fastboot. From there you can fastboot flash a new recovery.
I had the same problem as well, in device manager go to ports (com & LPT) and it will show up there under qualcum device. Don't forget to go and turn off certificate verification
Thanks guys I'll try this after work. Hopefully it works. If not sure oneplus are hopefully releasing a new phone soon
No it didn't work. I have a feeling I deleted something I shouldn't have because I was clearing out my files before I restarted and that was that.
you gotta use special twrp recovery for cm14.1...
https://www.androidfilehost.com/?fid=385035244224394867
Just use the recovery rahditzz provided you with a link, if your phone is stuck on black screen with white led hold your power button until it turns off, then boot to fastboot and flash the recovery and you will boot...
rahditzz said:
you gotta use special twrp recovery for cm14.1...
https://www.androidfilehost.com/?fid=385035244224394867
Click to expand...
Click to collapse
thanks didnt work. when i fastboot flash recovery and boot again it just goes into a black screen again
Then use unbrick method 2..
rahditzz said:
Then use unbrick method 2..
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Click to collapse
neither method works. all i can do is get into fastboot mode thats it. it wont show up on my pc at all
Method 2 workshop 100%, unless its a hardware fault..
Are you pushing volume up while plugging in cable?
I am. To be honest its very complex too me. I'm new to android and all this is so hard. I follow steps but I'm not 100% sure what I doing. Also my computer isn't great. Do these methods work on vista? Is there a video tutorial or anything? Sorry for annoying you and you don't understand how thankful i am for your help.
I jeep getting the sahara communication failed error
envious86 said:
I am. To be honest its very complex too me. I'm new to android and all this is so hard. I follow steps but I'm not 100% sure what I doing. Also my computer isn't great. Do these methods work on vista? Is there a video tutorial or anything? Sorry for annoying you and you don't understand how thankful i am for your help.
Click to expand...
Click to collapse
Your running vista???? Good god update your OS!!
Maybe your fastboot drivers got updated? There were some reports around this. You could try reinstalling the drivers and following the unbrick guide without an internet connection.
Sent from my ONEPLUS A3003 using Tapatalk
Cool u can boot into Fastboot, what error do you get when you type Fastboot devices? Nothing shows up?
So I got my lg G3 a while back, and until a couple of weeks ago it worked perfectly fine, rooted, custom recovery and custom ROM's(currently running Fulmics 6.9 on it).
Then, I noticed it started to fade to black(a well known problem, not the subject of this thread), and I want to send it to a care taker, since technically the time period of warranty isn't over.
So, I began to try and unroot it according to multiple internet guides, failing time after time. then, I noticed I don't have download mode, and it goes into safe boot mode instead. On top of that, I can't access my bootloader. I tried several methods, some including LGFlashTool and LGMobile support tool but with no success. So, considering I'm not exactly an expert in this matter(I'm clueless about what to do) I come here with a request for help. Any help is much appreciated and I'd be happy to provide any extra information if needed. Thanks a lot in advance.
ScUbA1405 said:
So I got my lg G3 a while back, and until a couple of weeks ago it worked perfectly fine, rooted, custom recovery and custom ROM's(currently running Fulmics 6.9 on it).
Then, I noticed it started to fade to black(a well known problem, not the subject of this thread), and I want to send it to a care taker, since technically the time period of warranty isn't over.
So, I began to try and unroot it according to multiple internet guides, failing time after time. then, I noticed I don't have download mode, and it goes into safe boot mode instead. On top of that, I can't access my bootloader. I tried several methods, some including LGFlashTool and LGMobile support tool but with no success. So, considering I'm not exactly an expert in this matter(I'm clueless about what to do) I come here with a request for help. Any help is much appreciated and I'd be happy to provide any extra information if needed. Thanks a lot in advance.
Click to expand...
Click to collapse
Take a look here, if you haven't seen that thread already. Since you are on MM right now, you need to use LGUP tool. The full instructions are in the Post #3 in the thread; just follow them. Note that you don't need to enter the DL mode - just keep your phone turned on, and plug into your PC. As long as you have proper drivers installed, your device will be recognized when you launch LGUP, and you should be good.
I personally haven't tried this going back to stock from Fulmics, but I did successfully use this method several times when I was playing around and trying to root my phone and install TWRP.
kt-Froggy said:
Take a look here, if you haven't seen that thread already. Since you are on MM right now, you need to use LGUP tool. The full instructions are in the Post #3 in the thread; just follow them. Note that you don't need to enter the DL mode - just keep your phone turned on, and plug into your PC. As long as you have proper drivers installed, your device will be recognized when you launch LGUP, and you should be good.
I personally haven't tried this going back to stock from Fulmics, but I did successfully use this method several times when I was playing around and trying to root my phone and install TWRP.
Click to expand...
Click to collapse
so I tried following the instructions in the thread you provided, but LGup doesn't recognize my phone so i cant enter it.
tried looking for a solution but i cant find anything. I'd appreciate it if you could help me.
Thanks.
EDIT: I've figured out the identification problem but lgup does require Download mode, it just enters it by itself.
this brings me to the original problem-I don't have download mode hence I cannot use lgup.
ScUbA1405 said:
so I tried following the instructions in the thread you provided, but LGup doesn't recognize my phone so i cant enter it.
tried looking for a solution but i cant find anything. I'd appreciate it if you could help me.
Thanks.
EDIT: I've figured out the identification problem but lgup does require Download mode, it just enters it by itself.
this brings me to the original problem-I don't have download mode hence I cannot use lgup.
Click to expand...
Click to collapse
Hold VOLUME UP while connecting phone to pc and it will enter download mode. Then start LGUp and flash kdz by following instructions
Saky22 said:
Hold VOLUME UP while connecting phone to pc and it will enter download mode. Then start LGUp and flash kdz by following instructions
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Click to collapse
When I try and start download mode it writes fastboot mode and then the screen goes black and the led flashes red and blue. I tried to look for a solution for it but couldn't find anything.
ScUbA1405 said:
EDIT: I've figured out the identification problem but lgup does require Download mode, it just enters it by itself.
this brings me to the original problem-I don't have download mode hence I cannot use lgup.
Click to expand...
Click to collapse
OK, this I don't know how to fix, sorry... I was thinking that you just can't enter the DL mode manually for some reason, so the LGUP tool would do it for you. But from what you are saying, it appears that your phone can't enter the DL mode, period. That's really weird, and I have no idea what can be done in this case...