I have flashed the latest version of CloudyG2 over my D802 CM 12 but just after I have done this I have realized that the ROM was for the Korean version of the device! My Phone is now stuck with a blackscreen with "fastboot started" written on. I seen a lot of threads of issues like this, but most of them have also "udc_start()" and mine doesn't. I can't access recovery or download mode, but I can access hardware buttons mode, I have done the procedure to get to the recovery at least a thousand times with no result. Any suggestion or procedure I can follow?
Saxthebest said:
I have flashed the latest version of CloudyG2 over my D802 CM 12 but just after I have done this I have realized that the ROM was for the Korean version of the device! My Phone is now stuck with a blackscreen with "fastboot started" written on. I seen a lot of threads of issues like this, but most of them have also "udc_start()" and mine doesn't. I can't access recovery or download mode, but I can access hardware buttons mode, I have done the procedure to get to the recovery at least a thousand times with no result. Any suggestion or procedure I can follow?
Click to expand...
Click to collapse
If it's the same problem I had, look in my post here for the link to sort it. You just have the wrong laf installed on the phone, restoring the proper one will allow you to go back to stock again.
Related
Hey all, I figured it was time to make a post and see if anyone could help figure out what I'm missing.
So I recently got my G2 and rooted it, then I installed Team Win Recovery Mod (on accident, actually. Was intending to install Clockwork, but figured it wouldn't hurt anything and it was working fine). Anyway, moved on to install Cyanogen Mod and gapps following the usual factory reset -> flash from /sdcard/ approach. Unfortunately on reboot, it went into fastboot mode.
Since then I've read a ton of stuff about fastboot, and I've reflashed recovery, boot, and system a dozen times, but I'm still stuck in fastboot mode. I've grabbed the CWM for LG G2 (AT&T) from http://www.clockworkmod.com/rommanager and the latest stable Cyanogen Mod from http://wiki.cyanogenmod.org/w/D802_Info. Sadly everything I've seen just tells me to do what I did - reflash recovery and tell it to reboot. I've also tried the "volume down + power until logo, then release and re-hit" method of getting into recovery mode, but the logo is present for literally less than a second, so I just end up back in fastboot.
Perhaps I need to find an flash a stock OS first? The thread on returning to stock firmware scares me :/ http://forum.xda-developers.com/showthread.php?t=2432476 Edit: I gave in and tried playing with this anyway. No good, I can't get the phone to enter "download mode", no matter what I do, it reboots into fastboot.
Any ideas?
Edit: The flash method I used for TWRM: http://forum.xda-developers.com/showthread.php?t=2449670
Edit2: This seems possibly relevant. When I do "fastboot devices", I get "? fastboot". So something is wonky in terms of its detection. But all the commands seem to be getting executed fine...
Edit3: Finally a potentially useful piece of info: If I flash the boot image extracted from the Cyanogen mod zip, then run "fastboot continue" I get "ERROR: Getting device tree address failed". Which is the same message I get when trying to remotely run a boot image without flashing it. Possibly related to the "?" in the "fastboot devices" listing above? I switched to Koush's Universal Adb Drivers, but no change.
Pretty please?
I find it hard to believe I could manage to brick a 2 week old phone just by following the guides posted here
Well, I still have no clue what went wrong, but I was finally able to make use of the reset to stock thread. It was strange and scary and at no point did I really have any idea I was hitting the right buttons, and at the end it said it failed... BUT it rebooted me into a fresh install, apparently even unrooted! My problems along the way appear to have entirely been related to actually getting the phone *into* download mode since I couldn't get it to actually turn off. Once it ran itself out of battery and turned off, I was able to enter download mode while reconnecting it to power.
No to decide if I want to try installing a custom ROM again, or take this as a sign...
Who am I kidding. *re-roots phone and pulls up the mod threads*
Hello,
this could be a silly question, but I'm actually hopeless about it...
I've been using CloudyG3 for 3 days, but I had some problems about it, so I decided I'd revert back to stock. I entered the Download Mode, installed the V20D ROM using LG's Support Tool, and, when the phone restarted, tried to enter the Factory Reset screen. Try as I might, I couldn't do that, so I'm stuck in a bootloop (I mean, the LED indicator is flashing, but no LG boot animation - just the static logo. I think there could've been some problem while flashing the FW, that's why I would like to enter Download mode again, or maybe at least turn my phone off (it can only restart). Nevertheless, while trying to flash the FW again while in a bootloop, everything from model no. to firmware version installed is shown correctly, but it can't boot into Download mode.
Thanks in advance!
a5943 said:
Hello,
this could be a silly question, but I'm actually hopeless about it...
I've been using CloudyG3 for 3 days, but I had some problems about it, so I decided I'd revert back to stock. I entered the Download Mode, installed the V20D ROM using LG's Support Tool, and, when the phone restarted, tried to enter the Factory Reset screen. Try as I might, I couldn't do that, so I'm stuck in a bootloop (I mean, the LED indicator is flashing, but no LG boot animation - just the static logo. I think there could've been some problem while flashing the FW, that's why I would like to enter Download mode again, or maybe at least turn my phone off (it can only restart). Nevertheless, while trying to flash the FW again while in a bootloop, everything from model no. to firmware version installed is shown correctly, but it can't boot into Download mode.
Thanks in advance!
Click to expand...
Click to collapse
Have you got a power source connected ?
timlad said:
Have you got a power source connected ?
Click to expand...
Click to collapse
Thanks for your reply!
No, I don't.
EDIT
I'm really grateful to you for your suggestion. Having plugged the device in, the Download mode came up with no problems. Now I'm trying to flash the previous version - V20B, which might make my device usable again.
Thank you very much!
Hi,
I have a LG G2 D800 (ATT Black version) which I was running with cm 11 for a long time.. Last week I got curious and tried to install CM12 on it and that's where started my nightmare.
To begin with, I think I flashed the wrong twrp version (d802) instead of d800.. So I was stuck for a while.. I finally was able to recover from that and Installed CM12. The install went ok, but the phone would freeze and turn off.. It wouldn't turn back on unless I did a soft reset.. I tried a few times and then gave up.. With the nandroid backup that I had, I went back to cm11, but the problem started to follow me in CM11 as well.. The phone was constantly rebooting.. Sometimes the phone would stay on for 2-3 hours and sometimes it wouldn't stay on for 2 minutes.. So I got frustrated and went thru' different threads and finally went back to Stock Rom using the LGFlashtool method.. In stock rom, the phone booted up fine, but the rebooting issue started happening there as well.. The phone was definitely much stable under stock rom than CM11/CM12 but it won't still power off all of a sudden and I could go a couple of hours before noticing that it had turned off.. Frustrated with it, I started all over again to root and install twrp and that's when it went from Bad to worse.. Something happened with my TWRP flash and I was not able to go to recovery or download... I was stuck...
I tried several methods. 1 ) Using ubuntu was my first try.. I followed the initial steps (ls devices and gdisk -l command) and after I ran the first step (dd if=/home/med/Desktop/sbl1.img of=/dev/sdb2), my phone went into fastboot mode and ubuntu couldn't recognize my device. after that.. I couldn't run the remaining commands..
2) since I was stuck in fastboot, I followed the fastboot method from another thread by downloading the fastboot and laf.img.... The phone was responding and said recovery erased successfully, but it kept going back to fastboot.. When I tried a different laf.img file, that's when the phone rebooted and now wouldn't turn on at all..
No LG image, no recovery, no response.. I've tried all button combinations (holding vol down and power, power alone, all 3 buttons, vol+ and power)... nothing happens with the phone... Windows doesn't recognize the phone.. It says 'lg g2 qhsusb_bulk' but that's pretty much it..
Atleast until today morning I had a LG image flashing that tells me that the issue is a software / partition issue.. Now I don't know if I have fried something..
I bought the fone in november 2013 and hence its out of warranty.. . I'm not eligible for upgrade till November and I'm stuck with using a iphone 4s (ouch...) until then... It sucks big time to go from the g2 to the 4s... any thoughts or ideas?
I had the same problem when I flashed the wrong kernel.... This link helped me http://forum.xda-developers.com/showthread.php?t=2582142 one of these 7 solutions should help you....
I found this link on YouTube which is exactly like your case
http://m.youtube.com/watch?v=_d5b_osUTug
And the second link which I didn't try is
Sent from my Lightning D802 G2
Supracer said:
I had the same problem when I flashed the wrong kernel.... This link helped me http://forum.xda-developers.com/showthread.php?t=2582142 one of these 7 solutions should help you....
I found this link on YouTube which is exactly like your case
http://m.youtube.com/watch?v=_d5b_osUTug
And the second link which I didn't try is
Sent from my Lightning D802 G2
Click to expand...
Click to collapse
Thanks. I looked into that thread before. Unfortunately in my case the phone is not recognized in adb or fastboot. Adb shows no device listed whereas fastboot says waiting for device.
Lg flashtool doesnt do anything either.
Only thing is that fone was showing up as unknown device and by me pressing vol up and power and vol down, it shows up as qhusb bulk..
askthiru said:
Thanks. I looked into that thread before. Unfortunately in my case the phone is not recognized in adb or fastboot. Adb shows no device listed whereas fastboot says waiting for device.
Lg flashtool doesnt do anything either.
Only thing is that fone was showing up as unknown device and by me pressing vol up and power and vol down, it shows up as qhusb bulk..
Click to expand...
Click to collapse
Go to the Device Manager => device properties of the "unknown device" => Details => Hardware ID and search the value on the internet for a driver... Maybe with a driver you can get the phone to be recognized
Folks,
I finally was able to get my G2 working from a hard brick..
My final non working symptom : Blank Screen.. No download.. No recovery.. No LG logo… Windows was showing device as unknown device sometimes and sometimes as qhusb_bulk.
Steps that I followed: You need to know how to use fastboot.
1) Kept trying different combinations of the 3 buttons (power, vol + and Vol -). The one that worked for me was to unplug the phone from pc… Press all 3 buttons together for 15-20 seconds and will keys pressed, plug into the PC.
2) This put me in the fastboot mode.. Here I tried flash laf.img with several laf files. My phone was a lg g2 d800 (ATT variant). Nothing really worked..
3) So I downloaded the Stock Rom files (aboot, boot, dbi, laf, misc, modem, persist, recovery, rpm, sbl1, and tz images) from http://downloads.codefi.re/autoprime/LG/LG_G2). I flashed all these files using Fastboot and then after flashing, rebooted the phone.
4) The phone automatically went into AT&T update and at 3% failed with an error and booted into safe mode. (This is probably because when it got bricked, I accepted a OTA update on a rooted phone and I didn’t have twrp recovery either).
5) I came out of safe mode and booted normally and voila, I got the stock rom 4.2.2 on my phone.
Thanks so much to the various threads in XDA developers that I was able to fix this.. Much thanks to etm34 for this thread: http://forum.xda-developers.com/showthread.php?t=2681089
Also to Partager.info for this thread: http://forum.xda-developers.com/showthread.php?p=48765620#post48765620
And cms88168 for this thread http://forum.xda-developers.com/showthread.php?t=2477595
I had to use all these 3 threads above to get my g2 back to working..
Thanks for sharing
askthiru said:
Folks,
I finally was able to get my G2 working from a hard brick..
My final non working symptom : Blank Screen.. No download.. No recovery.. No LG logo… Windows was showing device as unknown device sometimes and sometimes as qhusb_bulk.
Steps that I followed: You need to know how to use fastboot.
1)Kept trying different combinations of the 3 buttons (power, vol + and Vol -). The one that worked for me was to unplug the phone from pc… Press all 3 buttons together for 15-20 seconds and will keys pressed, plug into the PC.
2)This put me in the fastboot mode.. Here I tried flash laf.img with several laf files. My phone was a lg g2 d800 (ATT variant). Nothing really worked..
3)So I downloaded the Stock Rom files (aboot, boot, dbi, laf, misc, modem, persist, recovery, rpm, sbl1, and tz images) from http://downloads.codefi.re/autoprime/LG/LG_G2). I flashed all these files using Fastboot and then after flashing, rebooted the phone.
4)The phone automatically went into AT&T update and at 3% failed with an error and booted into safe mode. (This is probably because when it got bricked, I accepted a OTA update on a rooted phone and I didn’t have twrp recovery either).
5)I came out of safe mode and booted normally and voila, I got the stock rom 4.2.2 on my phone.
Thanks so much to the various threads in XDA developers that I was able to fix this.. Much thanks to etm34 for this thread: http://forum.xda-developers.com/showthread.php?t=2681089
Also to Partager.info for this thread: http://forum.xda-developers.com/showthread.php?p=48765620#post48765620
And cms88168 for this thread http://forum.xda-developers.com/showthread.php?t=2477595
I had to use all these 3 threads above to get my g2 back to working..
Click to expand...
Click to collapse
Happy to see you solved.
All,
Even though I resolved my bricked G2, it is still giving me issues by turning off automically after a while... It looks like a hardware failure to me where it ceases to operate at times.. The phone has stayed on sometimes for an entire day and sometimes it goes off in 5 minutes.. I'm sending it to LG repair service.. Hopefully they fix it for me under warranty (even though it has been 13 months since i bought it)..
Hello everyone!
I really hope I can find help here. I wanted to install Cyanogenmod 13 on my LG G2 D802 32GB. In the end I think I bricked my phone. I want to mention that I already searched for help on the Internet and tried many tutorials, but nothing helped.
First, I rooted my phone using this One click root method (before, I tried doing that other ways but it didn't work). So far, so good.
Then, I installed TWRP via Autorec. And here came the first problem. I booted into recovery mode and then the phone wouldn't start anymore. I started getting "Security error" along with Lg logo, when I wanted to turn on the phone. Actually I can't remember if I wiped everything in Recovery mode before or after getting this error, but I did anyway. Then I didn't get this security error message anymore, just stuck with lg logo.
Anyway I was still able to get into recovery or download mod, so I tried installing CM. But I couldn't acces my phone memory through PC and I didn't have CM installer zip on the phone. I tried copying CM installer into the phone using ADB push command. It did copy, it said it succesfully installed but since then every time I turn on my phone Lg logo just blinks for a fraction of a second and the phone will not turn on. The screen is black, but it remains "on" (there's nothing on it but you can see it's not totally turned off).
After that I tried every tutorial I could to install CM or stock ROM. I tried downloading different LG firmwares, including one found on a page where I had to enter my IMEI. But it's always the same problem: when I use LG Flashtool ( 1.0.54 ) it gets stuck. After clicking on System Upgrade I'm not asked about the language (as tutorials suggest), but it just opens LGMobile Support Tool, which says that my system is up to date.
OK, I think that's all I can say. So, the main problem is that I cannot use LG Flashtool, which is neccessary to install stock ROM in all the tutorials I have seen. Of course, I would like to install CM 13 still, but now th emost important thing is to get my phone to work again, even on stock system.
I hope we can solve this problem. Thank you all in advance!
Can you boot in download mode?
If you have download mode you can easily reflash stock
http://forum.xda-developers.com/showthread.php?t=2432476
If you cant get to download mode you have to reflash all the partitions here is thread
http://forum.xda-developers.com/lg-g2/general/mega-tut-how-to-fix-bricked-lg-g2-t3055033
or
http://forum.xda-developers.com/lg-g2/general/file-unbrick-qualcomm-9006-qhsusb-t3056800
After reflashing all partition you should be able to boot in download mode, then you can flash stock
xarekusu said:
Can you boot in download mode?
If you have download mode you can easily reflash stock
http://forum.xda-developers.com/showthread.php?t=2432476
If you cant get to download mode you have to reflash all the partitions here is thread
http://forum.xda-developers.com/lg-g2/general/mega-tut-how-to-fix-bricked-lg-g2-t3055033
or
http://forum.xda-developers.com/lg-g2/general/file-unbrick-qualcomm-9006-qhsusb-t3056800
After reflashing all partition you should be able to boot in download mode, then you can flash stock
Click to expand...
Click to collapse
Thanks a lot. I followed the instructions in the first post on the first site that you linked, using kdz file. Everything seemed to go well and I was already happy, but... It seemed that the stock flashed (on the computer it said that the installation was correct, on the phone the screen showed Update Software and it went to 100% percent), then the phone restarted and started updating apps for Android. And that is normal I suppose. But then, after it finished, it turned off, turned on and started installing those apps again. After that it turned off. When I wanted to turn it on, it showed me LG logo and then android logo for a fraction of a second. Then sometimes it would turn off completely and sometimes turn on again and show logos again. I assume that's what is called bootloop. So I followed the tutorial which said I should do factory hard reset. I entered the screen (power+vol down buttons), confirmed two times that I want to do the reset. It said the reset will start automatically, but nothing happened. The phone just turned off immediately and the same situation with logos (Bootlooping?) appears. So the problem now is that I cannot factory reset the phone.
pagi111 said:
Thanks a lot. I followed the instructions in the first post on the first site that you linked, using kdz file. Everything seemed to go well and I was already happy, but... It seemed that the stock flashed (on the computer it said that the installation was correct, on the phone the screen showed Update Software and it went to 100% percent), then the phone restarted and started updating apps for Android. And that is normal I suppose. But then, after it finished, it turned off, turned on and started installing those apps again. After that it turned off. When I wanted to turn it on, it showed me LG logo and then android logo for a fraction of a second. Then sometimes it would turn off completely and sometimes turn on again and show logos again. I assume that's what is called bootloop. So I followed the tutorial which said I should do factory hard reset. I entered the screen (power+vol down buttons), confirmed two times that I want to do the reset. It said the reset will start automatically, but nothing happened. The phone just turned off immediately and the same situation with logos (Bootlooping?) appears. So the problem now is that I cannot factory reset the phone.
Click to expand...
Click to collapse
I'm having a similar problem on my vs980 except I can't access recovery anymore but everything else is the same.
Edit: I actually can access recovery
You messed up pretty bad before you fixed a problem, you created another.
Have you tried to go back to stock using downoad mode and kdz?
Use this tool : http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
iubjaved said:
You messed up pretty bad before you fixed a problem, you created another.
Have you tried to go back to stock using downoad mode and kdz?
Use this tool : http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
Click to expand...
Click to collapse
OK, well, this is strange. The phone is working again, but actually I have no idea why I downloaded the tool from your link, installed it and ran. Then, following the yt tutorial, I went to the step where I was supposed to "look and remember the disk number that have so many partitions". I didn't anything there, though. And then, all of the sudden the phone started updating Android apps and then turned on as after factory reset. Weird, but it's working fine
By the way, can someone post a link to a tutorial on how to install Cyanogenmod 13 on LG G2 D802 32GB? I would still like to install it, but I want to avoid all the problems that I had now. So is there any good step by step tutorial that I could use to install CM?
Anyway, thanks all for help
pagi111 said:
OK, well, this is strange. The phone is working again, but actually I have no idea why I downloaded the tool from your link, installed it and ran. Then, following the yt tutorial, I went to the step where I was supposed to "look and remember the disk number that have so many partitions". I didn't anything there, though. And then, all of the sudden the phone started updating Android apps and then turned on as after factory reset. Weird, but it's working fine
By the way, can someone post a link to a tutorial on how to install Cyanogenmod 13 on LG G2 D802 32GB? I would still like to install it, but I want to avoid all the problems that I had now. So is there any good step by step tutorial that I could use to install CM?
Anyway, thanks all for help
Click to expand...
Click to collapse
Sure.
Download the rom from cyanogenmod website and put it on your phone memory.
Download Gapps from opengapps.org and place on the phone memory.
Go to recovery.
Make a full nandroid backup( all the partitions) , wipe all except internal storage.
Flash the rom along with the gaaps zip.
Reboot.
A few days ago I installed an erroneous rom, after that the phone went black. I have not been able to enter either recovery mode or fastboot. What I can do?
ArepaDeChoclo said:
A few days ago I installed an erroneous rom, after that the phone went black. I have not been able to enter either recovery mode or fastboot. What I can do?
Click to expand...
Click to collapse
what have you done specifically
dr.troll said:
what have you done specifically
Click to expand...
Click to collapse
I tried to install the nitrogenOS rom but it threw me an error during the installation in the twrp (error 7), as with the gapps (I don't remember the number of this error), I tried several solutions but nothing worked. I tried to update the firmware and there were no problems with the installation. However, I tried to install another rom (taken from this forum) and there were no problems with the installation. Then, I restarted it to start normally and the phone stopped working, it turned black. I will put all the links tomorrow.