LG-H815 (LGG4) - G4 Q&A, Help & Troubleshooting

what's up, any one miss me
so I got another G4 and thought I could fix this buuuuuut I got one issue before I can go forward with a repair for this phone
there is no download mode and no recovery, there is no OS, I tried vol. up plus power etc. and it just sits on LG logo, my PC did not make any noise that is sees the phone, at this point I'm already seeing its already bricked, its been awhile that I messed with a bricked phone (lgg3) but I never messed with a bricked lgg4 before
this phone I just got and it is marked untested so I figured why not lets see what I can do,
I don't mind getting the latest OS and I don't plan to root this phone, just factory reset and go. I did look but anything I seen didn't match what I am facing, I been messing with this thing and looking around ever since I got home so now its time to ask you all. if the phone is a no go from here then that is fine at least I tried to get back in the game here, any help would be great and thank you.
if this comes to a success, I plan to make a phone repair video as I know some/most have missed me, if you don't know who I am, hit me up or look up my username laserwolf452. sorry I haven't been on in forever

(update) managed to find factory reset didn't know had to let go of power and press again but it did not solved the issue, still looking at posts to see if there's anything I'm missing, my vs986 i can hold both power and vol down without letting go of the power button, is there another way to get download mode at least, as for the fact. reset mode, it was just yes no, no other options

(update) dumb moment, so yesterday I tried to work on this phone, long day at work and realized that the USB cord I use was not good, just charging and found that out when I hooked up my vs986 and yes its been a long time that I haven't messed with this phone, so I was right it is bricked I got the qualcomm hs-usb qdloader 9008, there was another one it showed eariler and it was qhsusb_bulk fix
so now I got somewhere. I am trying to find some methods to get this phone at least back to life and factory stock
I did try to go in DL mode but it show the icon but it will not kick over to firmware mode, before more time is put into this phone at this point, is it worth getting it back or is it dead dead,
if its worth it, is anyone willing to help me understand a method that works to fix the phone. I do have hard times understanding how this all works and at this point in my point of view, it feels really really complicated

@LASERWOLF452
You may want to check out this link: https://forum.xda-developers.com/t/...-unbrick-via-external-sdcard-no-qfil.3748946/
You may be able to get some help from steadfasterX (author of the thread and Recognozed Developer) - he's the most experienced in these issue

sdembiske said:
@LASERWOLF452
You may want to check out this link: https://forum.xda-developers.com/t/...-unbrick-via-external-sdcard-no-qfil.3748946/
You may be able to get some help from steadfasterX (author of the thread and Recognozed Developer) - he's the most experienced in these issue
Click to expand...
Click to collapse
thank you, I will give it a shot.

Related

I think I bricked my phone.... Please help!

I have been waiting nearly two months for HTC to get on the ball and release the official version of Windows Mobile 6.5 so I could download it and see if it's worth using as my main phone OS. But they have been lazy and have yet to come out with it. So, I got impatient and began looking into the roms that were already available and how to flash my phone to get them to work. The first step I read that I needed to do was unlock my phone. However, I forgot what the text said at the top of the page (here's the link to the program I used, if that's helpful): http://forum.ppcgeeks.com/showthread.php?t=36062. So I proceeded to use the Diamond Unlocker (as that should have been a huge tip-off to me then, but this was my first ever unlocking experience, so I had no idea what I was doing) Now, my HTC Touch Pro 2 from Verizon won't even turn on. It won't go into a bootloader screen, absolutely nothing happens when I press power button, the reset button, or a combination of any of the buttons on the device.
However, when I plug the phone into my computer, a device does pop up: Qualcomm CDMA Technologies MSM. I can't get anything more than that, though. No software drivers will install, it does try very hard to find some though.
Any help, advice, tips, tricks, random guesses, would be greatly appreciated. Thanks for all your help.
Welcome aboard
try to reflash another ROM
have a deep read here
http://forum.xda-developers.com/showthread.php?t=550540
Good luck,
Buttons don't respond.
I can't get my phone to turn on or even go into bootloader mode. So, without that, I don't understand how I can flash a new ROM onto my phone.
And hello to you as well.
I did read that link, but none of the button codes worked, and my phone isn't responding to the Hard-SPL that I started when my phone was connected. It says that it cannot find the device and I need to resync it. But I start Windows Mobile Device Center and it can't find my phone either.
However, an interesting new development is that my phone, every now and again, starts charging when connected to my computer. The light turns orange, and my computer picks it up. But it does this for a bit, and then it changes back to nothing.
If you can't access the bootloader using any of the methods detailed here, then I hate to say it, but your device is probably bricked. It's really difficult if at all possible to recover when the SPL (AKA bootloader) is severely damaged or completely destroyed. There were some tools a while back to help recover from nuked SPLs, but AFAIK they aren't compatible with the TP2, and you have to be security unlocked, which I can pretty much guarantee you aren't.
Your best bet would be to take it back to the store and play dumb, saying that it "just stopped working" in the hopes that they'll give you a new one, but there are no guarantees it'll work. Best of luck
That's what I need to know
Thanks for the information. I just needed to know what to do. I can't access the bootloader or anything even similar to it, so I am just going to get it replaced and then be much more careful in the future.

[q] semi brick

Hello, I wanted to ask if anyone knows how to resolve a SEMI-BRICK. There is no way to enter recovery mode or fastboot.
Was installing a ROM when I got an error and never could turn on the phone. Only I get the screen with the mobile and pc with an exclamation mark in the middle.
Appreciate your help.
PS: sorry for my English
Javier
If you can't get to download mode you might be screwed. Can you get into download mode? If you can then you can just use odin or fastboot to push the factory rom to the phone and it will work again. Obviously you lose root but you can re-root afterwards. Good luck.
I find no way to enter download mode. in any way that I only try to turn the screen appears to indicate in the query.
There is no way to fix it?
thanks
Hey, in all the time on here I have never heard of a bricked Nexus.
Ok so just to be sure when the phone is off and you hold volume down and the power button it does nothing? Sorry just want to be sure this is the case...
probe all possible combinations and all leading me to the same, the screen with the exclamation mark. and on volume +, volume - and power and volume + and - and on
Ah no dude. That sounds bad. I might be wrong but you may need to go back to your provider and tell them it just switched off and wont work anymore.
Do you see the Google logo and the lock symbol when you turn it on or just this exclamation mark?
Obviously if you go back to your provider don't mention anything about roms or rooting as that voids your warranty but if they can't see the Google logo with the lock then they wont know you were rooting and romming it.
That would drive me crazy so I hope you get sorted soon.
The issue is that here in Argentina is not this phone. I bought online and sent me the U.S.. I have therefore not who wear it.
have you tried the usb jigs? i tried it on my nexus and it boots it into download mode
IINexusII said:
have you tried the usb jigs? i tried it on my nexus and it boots it into download mode
Click to expand...
Click to collapse
That might be worth a shot!
That I'll see if I can prove it today night. It is the only hope left for me.
Yeah, good luck man.
Well folks, with all the pain of the soul I confirm that I have is a full-BRICK. Last night at the JIG probe, and the only thing it does is turn on the phone and see the same screen BRICK. Since I can not think what else to do, only use it as a paperweight as they say
Any chance you try leaving battery out for a while, give it at least a good 10 minutes
Neither. I've left it up all night without battery and nothing.
javiiperez said:
Neither. I've left it up all night without battery and nothing.
Click to expand...
Click to collapse
Bad news Javii! So what are you going to do next?
Today I will try to recognize me either linux, so maybe you can do a fastboot to install the original rom. Because I said if you see the exclamation point is because it is a semi-brick
I used to get that screen with my Galaxy Tab when flashing the wrong ROM.
If the ODIN and original files are available for you to use, just use that and it should fix your phone.

Nasty Bootloop after Flash on Sprint G2

Last night I installed geefree on my phone from the app store and used it to install TWRP. I downloaded a nightly CM11 and an appropriate gapps. Using geefree I rebooted to recovery (never figured out the button combination to boot to recovery "naturally") and installed both of the zips. This could be where I made my mistake, I installed both at the same time.
Now my phone loops, displaying the LG logo for a few seconds, then shutting off and rebooting before repeating the process. I can't seem to get it to go into download mode or the recovery menu. I've tried power+up, power+down, down+up and each of those while plugging the device in, etc. I can get the device to a hardware key control mode, though it doesn't seem too useful.
How can I save my phone? This forum has been a great resource in the past and I'm very grateful for the many tutorials I've followed rooting other devices. Hopefully you guys can save the day once again!
Volume up plus power is how to access recovery on sprint.
What stock sw version were you on before you flashed cm?
Did you wipe data before flashing?
Sent from my LG-LS970 using xda app-developers app
I was using stock 4.2.2, I believe. I didn't wipe the data (shame on me), a bad habit that I picked up from my first rooted device, the Samsung Moment. It didn't ever matter on that one, afaik. Thanks for the reply!
Edit: Volume up and power whether plugged in or not takes me to the hardware key control mode screen.
Second Edit: http://forum.xda-developers.com/showthread.php?t=2432476&page=35 I also found this thread where someone seems to be experiencing similar issues and they fix it with "LG Utility." Is that a PC application? It's a little vague to google, but I've been trying!
I have a bootloop issue every time i flash a rom i have to wipe all but sd flash roms and gapps the i do a restore from twrp and oly restore my boot image only and they boot no prob
I'm kind of starting to suspect my power button doesn't work at all for whatever reason. I have a lot of difficulty getting the phone to shut down, then it doesn't seem to easily power up. It's a strange collection of problems. Would a Sprint repair place be able to fix this?
If they have parts on hand if not either a swap out or a sendoff
Same problem here - bootloop and no download mode - CWM works! - urgently need help
I guess I have the same problem as InlineFourPower (apart from that my power-button has no problem).
I am stuck in bootloop since I tried to upgrade to Kitkat a few days ago. Now I can´t get into download mode any more, nor into fastboot or anything else. Only CWM works.
From within CWM I can successfully flash ROMs but that doesn´t help, since afterwards I am still stuck in bootloop. It is possible, however, to push files via adb-commands while I am in CWM.
Does anybody have an idea how to go from here or how to get download-mode back?
Device is recognized but can´t be mounted - bricked forever?
Parinibbana said:
I guess I have the same problem as InlineFourPower (apart from that my power-button has no problem).
I am stuck in bootloop since I tried to upgrade to Kitkat a few days ago. Now I can´t get into download mode any more, nor into fastboot or anything else. Only CWM works.
From within CWM I can successfully flash ROMs but that doesn´t help, since afterwards I am still stuck in bootloop. It is possible, however, to push files via adb-commands while I am in CWM.
Does anybody have an idea how to go from here or how to get download-mode back?
Click to expand...
Click to collapse
I tried a few things on Linux.
After terminal-command "ls /dev/sd*" when the device is unplugged from the computer I get "/dev/sda".
When the device is connected via USB, I get: "/dev/sda /dev/sdb"
So sdb is my LG G2.
So I went on to the next command: "gdisk -l /dev/sdb"
As a result I get: "Problem opening /dev/sdb for reading! Error is 123."
Does it mean that the phone isn´t mounted or what? Now I´ve connected my phone to another Linux machine with the same result. It is recognised (p.e. as sdd), but there is no sdd1. Seems as if it is recognized, but can´t be mounted. Does that mean my device is bricked for good? That´s it?
to get the phone into download mode you have to plug the usb cord in and hold VOL+, so to get this right as I have a case on mine, plug the usb into the phone first then hold VOL+ and plug into usb port on the computer.
it does take a loooong time to power down the phone with the button when stuck in a boot loop, just keep holding it until it shuts off, it will shut off eventually!!
plug the phone in while in download mode to install drivers and set com ports, then unplug before you begin your flash with LGFlashTool, hope this helps you out.
Cronic2009 said:
to get the phone into download mode you have to plug the usb cord in and hold VOL+, so to get this right as I have a case on mine, plug the usb in first then hold VOL+ and plug into usb port.
it does take a loooong time to power down the phone with the button when stuck in a boot loop, just keep holding it until it shuts off, hope this helps
Click to expand...
Click to collapse
Thanks Cronic2009 for your advice.
There are, however, szenarios where download-mode is not accessible any more. Neither by using the hardware-keys, nor by using the adb-command.
After four days of resarch and a lot of trial and error, I finally unbricked my F320L using the two adb-commands outlined at the beginning of that thread: http://forum.xda-developers.com/showthread.php?t=2451696
Worked like a charm.
Thanks everyone for your advice.
no problem buddy, glad you got it figured out, good luck to you from here on out!
FYI, that link doesn't work
I just wanted to ask anyone who might know, since the bootloader of the LS980 is locked, we cannot "break" this correct, so no matter what commands we decide to run through root, we cant touch the true bootloader there for LS980 fail safe? (Besides Acts of God, EMP, ect)
Cronic2009 said:
no problem buddy, glad you got it figured out, good luck to you from here on out!
Click to expand...
Click to collapse
Thanks for letting me know. I corrected the link in my previous post.
Be sure if you use a aosp based rom to flash the ZV8 modem. Your can use dr87 or furnance kernals after you flash the zva modem althought i have encountered soft brick due to this.
so i'm having this exact issue and i don't know how to get out of it. i just need to transfer the radio to my phone somehow but nothing shows up under adb devices. i'm trying to the lg mobile support tool now. its downloading the software. but if it doesn't work does any one have any fixes?
edit: i fixed it by following this http://forum.xda-developers.com/showthread.php?p=51637410&highlight=download+fail#post51637410
pitbullmommy45245 said:
so i'm having this exact issue and i don't know how to get out of it. i just need to transfer the radio to my phone somehow but nothing shows up under adb devices. i'm trying to the lg mobile support tool now. its downloading the software. but if it doesn't work does any one have any fixes?
edit: i fixed it by following this http://forum.xda-developers.com/showthread.php?p=51637410&highlight=download+fail#post51637410
Click to expand...
Click to collapse
Thank You for sharing you fixed your issue pittbullmommy but the link you posted points back to a post about a failed run on LGFlashTool, will you please fix the link and point it to the post/guide you used to fix your phone, it may help others stuck in a similar situation, glad to hear you got it fixed and working, best of luck with it from here on out!
Hi all
was just about to start a new thread but didn't want to get into trouble..anyway I am in need of some assistance please.my ls980 has been bricked for some time now been searching all over the internet for a solution to be stuck back at square one.found this video on youtube which is pretty much exactly what my phone is doing.I have used lg flash tool to revert to stock and still nothing I lost root doing that but last night,I managed to regain root access I have no idea how but it happened when i clicked ioroot batch file i went into download mode and it stated bottom left ROOTED in red so i managed that but that is it still doing what is being shown in the video its on youtube
watch?v=PjLF-pBhZSY
please if anyone has the know how I would like to fix this phone rather then bin it thank you all happy 4th everyone
After using tot and flash tool to get back to stock, did you try going into stock recovery and do a factory data reset? I know it sounds stupid especially after a tot but try it. Couldn't hurt
Sent from my LG-LS980 using Tapatalk
Borderline noob here, so please bear with me...
I have been using TWRP 2.7.0.0 to do all my work, and I was able to get the Lego ROM installed with ZVA. I got into too big of a hurry and forgot to make a backup of stock. I've also been unsuccessful in trying to install ZVC modem and firmware. Thankfully ZVA works as does the LEGO ROM, but I'd like to have stock there to access as well. The stockZVC that's on the Android Development page has been getting stuck (bootloop?) on the Sprint Spark logo. I've done TWRP's factory reset with no success. Any help would be great.
Thanks in advance!
Yes sir I've tried that and more to no avail is there anything I can do through adb I'm on stock recovery phone doesn't stay on long enough to install anything
sarfdawg said:
Borderline noob here, so please bear with me...
I have been using TWRP 2.7.0.0 to do all my work, and I was able to get the Lego ROM installed with ZVA. I got into too big of a hurry and forgot to make a backup of stock. I've also been unsuccessful in trying to install ZVC modem and firmware. Thankfully ZVA works as does the LEGO ROM, but I'd like to have stock there to access as well. The stockZVC that's on the Android Development page has been getting stuck (bootloop?) on the Sprint Spark logo. I've done TWRP's factory reset with no success. Any help would be great.
Thanks in advance!
Click to expand...
Click to collapse
You ever get her fixed?

D851 Wont Boot into TWRP or Into Android after flashing Fulmics D855 ROM

As the title says, i mistakenly selected D855 in Fulmic ROM(Noob mistake). Just this morning my friends suggested Fulmic ROM so i decided to download and flash it. I already had root and TWRP 3.0.0-0 installed. After the download was done, i copied it onto my SD Card and booted into TWRP. In TWRP, i backed up my data as i had already done a full backup a month a go. I was on Stock KK 10C.
When i selected Fulmic's zip, it asked me to select my device but i noticed there was no D851, but there was the at&t version, Verizon version, D855 etc... So i selected the D855 as i taught somehow the D855 and the D851 were somewhat similar and that it would run on my D851, (yea... i now know it was such a stupid assumption i made). So i flashed the D855 onto my D851 and once it was done, i hit the reboot button and the device went off and never came on. I tried booting into TWRP but nothing worked, then i took out the battery and pressed vol up and inserted the USB and it showed me an empty battery sign with a yellow triangle on the lower right side of the empty battery.
When i connect the device to Windows, it shows up as LGE AndroidNet USB Serial Port.
I am pretty lost here, i dont know what to do right now. I have been reading lots of threads but i havent found any thread that explains how to deal with such a situation.
Any Help is appreciated.
Regards Mickey.
Wow! No replies so far?
People, i am loosing it here. Any suggestions are welcomed. I have no idea what i should do
Cry...and be very angry. Jk
You more than likely hard bricked like others are doing because they're flashing the wrong things...
It's like using diesel in a petrol motor and vice versa. You're gonna have a bad time.
Honestly I don't know how to help because I don't flash things that don't go with my device, I am not being a jerk but just saying, i'd take a look at the hard brick Q&A's ive seen a few of them. They might have what you are looking for ?
Gytole said:
Cry...and be very angry. Jk
You more than likely hard bricked like others are doing because they're flashing the wrong things...
It's like using diesel in a petrol motor and vice versa. You're gonna have a bad time.
Honestly I don't know how to help because I don't flash things that don't go with my device, I am not being a jerk but just saying, i'd take a look at the hard brick Q&A's ive seen a few of them. They might have what you are looking for ��
Click to expand...
Click to collapse
Thanks man, I need all the help i can get.
Getting really desperate here.
Hey amigow
Are you able to get into download mode?.. If so you can always flash back to stock kk using lg flash tool ... Search how to downgrade here on xda that'll get you back to normal as long as you're able to get into download mode
djgyo12 said:
Are you able to get into download mode?.. If so you can always flash back to stock kk using lg flash tool ... Search how to downgrade here on xda that'll get you back to normal as long as you're able to get into download mode
Click to expand...
Click to collapse
Thanks but i cant get into download mode.
mickeyasamoah said:
Thanks but i cant get into download mode.
Click to expand...
Click to collapse
If all else fails, you should be able to restore by following the instructions for a hard brick recovery. I warn you it is not a procedure for the faint of heart, but it saved my bacon (AKA, LG D850).
It involves shorting two pins on a chip (can't remember if it's the SOC or not, but it hardly matters). I managed it with a pair of needlepoint tweezers, but the guide instructs you to use a fine wire. I can't imagine doing it that way, but maybe you can.
In any case, the guide that worked for me is here, "http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359" . Just follow it to the letter and don't compound your earlier mistake. (Not trying to be a jerk; just advising against rushing the process or second guessing any steps. You might think it can't get any worse or you've got nothing to lose, but it's still possible to make it worse by doing something wrong.)
Good luck!

[H815] Stuck on lg screen, no bootloop, access to download and recovery ok [SOLVED]

Hi,
I've searched over xda and google before but haven't found anything relevant so I've decided to post my own problem.
My G4 freezed unexpectedly while listening to music, I had to remove the battery to put it off.
But it never passed the LG logo again.
So, i've been stucked on this LG logo, looking for an answer and found about this hardware issue but I'm not certain to get the same error.
It's not a bootloop (even if I sometimes got stuck in bootloop while trying everything to revive my phone), I have been able to get to the download mode and TWRP (which I don't have anymore because I went back to stock using LGUP and LG bridge), even though I hardly get to the download mode now (I sometimes manage to do it though). I've also managed to save my data when I've managed to enter TWRP (plug in, remove battery, push volume down + power while putting battery in) which, people with hardware issue haven't, as far as I know.
I've tried everything I could and wouldn't even be able to describe it all.
Do you guys know how I could be sure if it's hardware or software related ?
Last try: update via Lg Bridge, succeed but still stuck on LG screen.
Thanks a lot !
Flash a lollipop kdz via LGUP, then try the ILAPO (works only with lollipop, no marshmellow) metod, there is a thread on xda.
There is a video on youtube too
alinnsts said:
Flash a lollipop kdz via LGUP, then try the ILAPO (works only with lollipop, no marshmellow) metod, there is a thread on xda.
There is a video on youtube too
Click to expand...
Click to collapse
Thanks, I'm going to try this and let you know !
I gave a look on what you've suggested, but is that going to let me use the phone or only backup ?
From what I understood (and I might be wrong), this only allows to backup because the phone would be worthless...
bbsugar said:
I gave a look on what you've suggested, but is that going to let me use the phone or only backup ?
From what I understood (and I might be wrong), this only allows to backup because the phone would be worthless...
Click to expand...
Click to collapse
You'll be abble to use the phone, but it would be slower duo to the fact that with ILAPO you disable the "2 more powerfull" cpu cores... this metod let only 1 core active from the other 4, if you want to use the other two you have to gain root permissions and install an .apk to reactive the other 3. It's a litle triky but better than nothing I guess ��
PS: if you dont want to deal with all this bulls**it send it to LG
Same problem
This morning my Lg G4 also got stuck in boot Lg screen. Did you manage to fix your issue or got the data backup ?
sometimes flashing stock LP firmware fix it.. sometimes you must send it back to LG for repair..
localgh0st said:
This morning my Lg G4 also got stuck in boot Lg screen. Did you manage to fix your issue or got the data backup ?
Click to expand...
Click to collapse
I managed to backup, it's a weird trick and you need to have TWRP installed I guess:
- Remove the battery
- Plug your phone (I used my laptop but I'm guessing it also work directly from the charger)
- Push volume down + power
- Insert battery holding those buttons
I managed to enter TWRP and backup with this.
It didn't work at first, I had to try it several times.
I also read you have to keep holding volume down + power until the phone reboot itself once, and then you get access to TWRP but I tried so many times differently I don't remember which one worked best. Anyway, it worked for me that way.
I didn't fix the issue and I sent it to LG... I'm so frustrated, it's been 10 years I'm into this stuff and I always managed to fix everything
Hi guys,
So my G4 just came back from LG, they replaced the motherboard and that's it... A bit disappointed to not having been able to fix it myself but at least, it worked.
I didn't have to pay anything since it was a hardware defect, LG took care of it.
Thanks for those who tried to help, I hope this post would be useful for some with the same issue.
bbsugar said:
Hi guys,
So my G4 just came back from LG, they replaced the motherboard and that's it... A bit disappointed to not having been able to fix it myself but at least, it worked.
I didn't have to pay anything since it was a hardware defect, LG took care of it.
Thanks for those who tried to help, I hope this post would be useful for some with the same issue.
Click to expand...
Click to collapse
I'm having this same issue out of the blue. Is your serial number one of the infamous "before 509" ones? I'm on TMo with the H811, so it may not be similar at all....but I'm at my wits end. I've never had a spontaneous boot loop happen to me before now. It was always something I'd done.
Dramatdude said:
I'm having this same issue out of the blue. Is your serial number one of the infamous "before 509" ones? I'm on TMo with the H811, so it may not be similar at all....but I'm at my wits end. I've never had a spontaneous boot loop happen to me before now. It was always something I'd done.
Click to expand...
Click to collapse
Indeed, my serial number was 505 something.
I've been there too, if it's spontaneous, it must be this hardware defect...
bbsugar said:
Indeed, my serial number was 505 something.
I've been there too, if it's spontaneous, it must be this hardware defect...
Click to expand...
Click to collapse
Interesting... Especially since mine was a 509 or something. I guess they missed some units. Oh well, I just JUMP'ed early with my TMo plan to the G5. That was my second G4 after a similar issue 13 days into owning the first one back in November. Having your phone spontaneously die is quite a fun way to spend your anniversary -____-. I wasn't about to give that model a 3rd try. Thanks for replying.

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