[Q] Optimus Black real brick recovery? - LG Optimus Black

Hey all
I just flashed the new V30B Europe Open on my OB, but I thought I'd give it a try via the CWM Inject method, also, so I could have CWM.
Do not bash me....I did not read the stuff about the locked bootloader sh** LG has sticked in. And now I am sorry.
Fact: I now have a really black Optimus Black. Nothing pops on screen, looks completely dead, no SW recovery, nothing. No LG Security Error screen.
Is there any way I can fix this?
I'm not sure I want to go in service as LG Romania are complete idiots. They wanted to do a phone mobo change on a phone that just needed a plain fw reflash via sw upgrade mode, for three of my friends.
I am not afraid of tearing stuff apart, and other hobby electronics voodoo, but I need to know if I can fix this somehow without a mobo/chip replacement.
Many many thanks,
Val.

vali.cheche said:
Hey all
I just flashed the new V30B Europe Open on my OB, but I thought I'd give it a try via the CWM Inject method, also, so I could have CWM.
Do not bash me....I did not read the stuff about the locked bootloader sh** LG has sticked in. And now I am sorry.
Fact: I now have a really black Optimus Black. Nothing pops on screen, looks completely dead, no SW recovery, nothing. No LG Security Error screen.
Is there any way I can fix this?
I'm not sure I want to go in service as LG Romania are complete idiots. They wanted to do a phone mobo change on a phone that just needed a plain fw reflash via sw upgrade mode, for three of my friends.
I am not afraid of tearing stuff apart, and other hobby electronics voodoo, but I need to know if I can fix this somehow without a mobo/chip replacement.
Many many thanks,
Val.
Click to expand...
Click to collapse
Download mode working?
Sent from my LG-P970 using xda app-developers app

N00BY0815 said:
Download mode working?
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
Hey, no, that's exactly the problem, it's in dead boot state. No download mode, no charging screen, nothing.
From what I see by looking online, I can only hope for a jtag rewrite of the stuff in this case.
I don't have the tools/skills for a jtag rewrite with pads so small, so I will find a service that will do it with proper hardware.
As I was just saying, I found some LG service technician (friend of a friend of a friend...etc), and he confirmed that they would only do full mobo change, and charge me with the price of the new piece, even though most of the time they use refurbished service replacements.
Oh, well.....I do smthg for ONE time without documenting....and look what I get.
Cheers,
Val

Related

[Q] Is my Captivate bricked? Guys, I need your help !

Hello everyone,
One day, I upgraded a ROM firmware (I don't remember which ROM exactly..) on my Captivate..
I formated everything before update (data, cache, AND system !).
During update I was making a coffee, and when I came back on the phone,
it was absolutely dead.. Only a full black screen.. Not detected on USB, just nothing.
After that, I tried everything that was possible (a lot of combo's, Odin3..)
Then, I bought a JIG, but still nothing, I tried with some different combo's (I can't remember which ones..)
Now, I would like to recover my Captivate! But.. how ?
If someone find the final good solution, I would like to donate via Paypal
Thanks, in advance!
Need more info. Which rom? Did you use 3 button fix? Have you tried adb? What about holding volume down while plugging in usb? Are you sure battery isn't just dead (dont laugh, its happened)?
If you did all that, its most likely a hard brick. There are developers here that offer JTAG service.
As I said, I don't remember the ROM. I was trying every new ROM, so, I really can't remember.. Sorry
About 3 button fix.. I don't know what it is exactly !? If it is vol down+up+Power, yes I did !
Nope, I did not try ADB.. I tried to find informations about this, but I cannot find! If you can help me about this, u'r' welcome !
Vol down does nothing..
I think my battery is still alive. Because when I plug my charger on it, it becomes a little warm after some hours, so I guess it's still alive..
I saw some JTAG infos, but I don't know what to do.. Do I need to send my Captivate to a JTAG's owner in USA !? It's like 40$ to send a secured shipping to USA..
Thanks for trying to help me!
If a jig will not turn it back on you may need the jtag. There are threads about it.
zelendel said:
If a jig will not turn it back on you may need the jtag. There are threads about it.
Click to expand...
Click to collapse
Is that possible to buy a JTAG ? I think I can't make one..
I made some searchs on eBay but I found nothing.
Thanks for helping
EDIT : I installed ADB on my computer, now I would like to connect it to my phone, but.. Don't know how!? What combo do I need to do, for my captivate be recognized by ADB ?
Thanks.
zebra363 said:
Is that possible to buy a JTAG ? I think I can't make one..
I made some searchs on eBay but I found nothing.
Click to expand...
Click to collapse
JTAG is not something you can buy on ebay. As mrhaley said, you need to send your phone to one of the developers who offer JTAG service. They will fix it and send it back to you.
Download AIO toolbox, go to advanced and clock reboot into download mode with your phone on and it will go to download mode, no jig needed. it worked for me just now.
malicenfz said:
Download AIO toolbox, go to advanced and clock reboot into download mode with your phone on and it will go to download mode, no jig needed. it worked for me just now.
Click to expand...
Click to collapse
the problem is that he can't get his phone on...so toolbox won't work.
i'm no expert, but it sounds like a brick to me
Send it to a dev offering Jtag our try ur luck with samsung warranty. Worked for me.
Sent from my SAMSUNG-SGH-I897 using XDA App
Yeah mine wouldn't turn on either but I got it into download mode with the AIO toolbox
Sent from my SAMSUNG-SGH-I897 using XDA Premium App
Thank you guys for these answers.
* The problem is that I cannot send my Captivate to a JTAG's owner in USA,
because it's approximately 40$ fees to send it ! Then, with a return, it makes a total of 80$..
* Another problem is that I bought my captivate on eBay, and it's not under warranty..
* Maybe it remains the "ADB" solution (I never tried this), but I don't know how to connect my phone? because it stays turned off, then if I connect, I just get nothing..
Adb doesn't work unless you can get into the OS. You have a brick, jtag is your ONLY option of getting a working phone.
studacris said:
Adb doesn't work unless you can get into the OS. You have a brick, jtag is your ONLY option of getting a working phone.
Click to expand...
Click to collapse
Ok, I understand, but .. How could i use a JTAG if I cannot send my Captivate to USA ? (too much expensive!). Thanks
It's either bricked forever or you pay for jtag. Those are your only options.
studacris said:
It's either bricked forever or you pay for jtag. Those are your only options.
Click to expand...
Click to collapse
Is there not any other way for JTAG ?
Is that possible to make one myself ? I will never buy a Samsung anymore
How are you at soldering? The captivate is one of the hardest phones to jtag, the solder points are smaller than the width of a dime, it would be really easy to fry the circuit board trying to jtag it yourself.
studacris said:
How are you at soldering? The captivate is one of the hardest phones to jtag, the solder points are smaller than the width of a dime, it would be really easy to fry the circuit board trying to jtag it yourself.
Click to expand...
Click to collapse
I think I will not try, I'm really a noob with this
Thanks for help.
Do you think I can still sell my Captivate, for those who want to repair/fix or use parts? If I can, what kind of price? (my captivate is in perfect state, like new)
There's a user from XDA forums,Mcguyver1980. In one of his posts says he's in Belgium and can fix bricked phones. I don't know anything about this guy personally, but since you're about to scrap your phone I figured it wouldn't hurt for you to check if this guy is legit. Just make sure he understand it's a hard brick.
Sent from my SAMSUNG-SGH-I897 using XDA App
Don't think it matters where it was bought. Samsung has a one year warranty
Sent from my HTC Vision
cfmarque said:
There's a user from XDA forums,Mcguyver1980. In one of his posts says he's in Belgium and can fix bricked phones. I don't know anything about this guy personally, but since you're about to scrap your phone I figured it wouldn't hurt for you to check if this guy is legit. Just make sure he understand it's a hard brick.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Ah, thank you very much ! I will look about him..
I really hope he can do that ! Thank you again.
Pirateghost said:
Don't think it matters where it was bought. Samsung has a one year warranty
Sent from my HTC Vision
Click to expand...
Click to collapse
I bought my phone in december/january 2011.. But the seller did not say it was under warranty I received the original box .. So, do you think its under warranty ? But I guess postage is at my expense..

Finally, i got hard bricked...

Hello. Sorry for my english.
I've been living on the edge, like many of us LOL, and i finally got hard bricked. No battery charge, logo, download mode. Nothing. Just a black screen.
I was using ICS stunner 1.4.26 and decided to flash Catastrophic Meltdown 9 (CM9 for friends). The problems was that my battery died when it was installing the kernel, or the boot, i dont know.
So, i have been reading a lot those days but nothing seems to work. I have ordered a Jig but i think is not going to work. Yesterday i used windows, and something was detected when i plugged in the usb, but Odin not.Today it does not work, and windows doesnt play any sound. Any idea? A Jag?
I should say this is the best mobile phone i have ever touched. I would be eternal grateful with all of you if we could fix this mess. I was aware that there were risks. Im aware now maybe i cant fixit and im not gonna blame anyone because it was my responsability, but any help would be appreciated. Thanks.
Same thing happened to me, nothing worked (tried the JIG). I had to send it in for repair, but they didn't see that it was my fault (still had warranty).
nasdak10 said:
Hello. Sorry for my english.
I've been living on the edge, like many of us LOL, and i finally got hard bricked. No battery charge, logo, download mode. Nothing. Just a black screen.
I was using ICS stunner 1.4.26 and decided to flash Catastrophic Meltdown 9 (CM9 for friends). The problems was that my battery died when it was installing the kernel, or the boot, i dont know.
So, i have been reading a lot those days but nothing seems to work. I have ordered a Jig but i think is not going to work. Yesterday i used windows, and something was detected when i plugged in the usb, but Odin not.Today it does not work, and windows doesnt play any sound. Any idea? A Jag?
I should say this is the best mobile phone i have ever touched. I would be eternal grateful with all of you if we could fix this mess. I was aware that there were risks. Im aware now maybe i cant fixit and im not gonna blame anyone because it was my responsability, but any help would be appreciated. Thanks.
Click to expand...
Click to collapse
From my experience the only way u can get ur phone back in service is go to ssc and make some reasonable reason why ur phone is dead, so u can still claim for warranty and I am sure they will replace ur engine/mobo like my friends did a month ago.
Sent from my GT-N7000 using xda premium
nasdak10 said:
Hello. Sorry for my english.
I've been living on the edge, like many of us LOL, and i finally got hard bricked. No battery charge, logo, download mode. Nothing. Just a black screen.
I was using ICS stunner 1.4.26 and decided to flash Catastrophic Meltdown 9 (CM9 for friends). The problems was that my battery died when it was installing the kernel, or the boot, i dont know.
So, i have been reading a lot those days but nothing seems to work. I have ordered a Jig but i think is not going to work. Yesterday i used windows, and something was detected when i plugged in the usb, but Odin not.Today it does not work, and windows doesnt play any sound. Any idea? A Jag?
I should say this is the best mobile phone i have ever touched. I would be eternal grateful with all of you if we could fix this mess. I was aware that there were risks. Im aware now maybe i cant fixit and im not gonna blame anyone because it was my responsability, but any help would be appreciated. Thanks.
Click to expand...
Click to collapse
No download mode when you use the jig?
I feel your pain. Best wishes on resurecting that thing.
sorry to know. hope things will be Ok soon for you.
nasdak10 said:
I was using ICS stunner 1.4.26 and decided to flash Catastrophic Meltdown 9 (CM9 for friends). The problems was that my battery died when it was installing the kernel, or the boot, i dont know.
Click to expand...
Click to collapse
It has nothing to do with your battery dying and everything with trying to flash CM9 directly from super-dangerous LP5 or LP6 leak ICS kernel.
No jig or JTag will revive your phone now.
However, if your Note refuses to go into download or recovery mode, you are in luck - if you have a warranty, that is. Just take your phone to the service center and tell them that it died when updating via Kies. There is no way for them to tell what had really happened and they will have to replace your motherboard free of charge.
Sadly, jig didnt solve the problem. Battery isnt hot when plugged in, is my motherboard fried by flashing the note?
Could a jtag solve the problem?
Try to take it back in for warranty before attempting a JTAG and voiding the warranty (that they can tell)
Sent from my Nexus 7 using xda app-developers app
nasdak10 said:
Sadly, jig didnt solve the problem. Battery isnt hot when plugged in, is my motherboard fried by flashing the note?
Could a jtag solve the problem?
Click to expand...
Click to collapse
Yeah, that's a classic superbrick, need replacement mobo. Sorry dude. As mentioned just say you were updating ics ota or through kies.
Sent from my GT-N7000 using xda premium
I got the same problem few days back..I went to service center and said that i got an ota update and after downloading had completed,it started rebooting and there i got some errors and finally my phone is dead
They were unable to find the exact reason why it got bricked as it was unable to enter download or recovery mode
So they replaced the motherboard under warrenty
Better this it once
All the best :good:
I dont think that warranty thing is gonna work, because i have lost some inside cover screws... yeah, thats a long story trying to fix it. If i borrow a motherboard... could i recover my data? because thats all i want at the moment. Or, is there any website where i can buy it? Otherwise, im going to try it with the warranty...
nasdak10 said:
I dont think that warranty thing is gonna work, because i have lost some inside cover screws... yeah, thats a long story trying to fix it. If i borrow a motherboard... could i recover my data? because thats all i want at the moment. Or, is there any website where i can buy it? Otherwise, im going to try it with the warranty...
Click to expand...
Click to collapse
What cover screws??
If you change your motherboard,you will lose all your data
I just came back from the service center and they are covering it under warranty . Similar symptoms and they are going to replace the whole board. Just take it to the service center and say "Yo man your **** died on it own" :fingers-crossed:
Mr Colt said:
I just came back from the service center and they are covering it under warranty . Similar symptoms and they are going to replace the whole board. Just take it to the service center and say "Yo man your **** died on it own" :fingers-crossed:
Click to expand...
Click to collapse
Ivjust tried it bit couldnt get brick to occur no matter how hard i tried. Nm glad you got yours fixed
Sent from my GT-N7000 using xda app-developers app
Mr Colt said:
I just came back from the service center and they are covering it under warranty . Similar symptoms and they are going to replace the whole board. Just take it to the service center and say "Yo man your **** died on it own" :fingers-crossed:
Click to expand...
Click to collapse
Good to hear
Sent from my GT-N7000 using Tapatalk 2

Galaxy Note bricked after JB flash

Hey everyone
I'm a bit lost as to how to get started with fixing my hard bricked phone. It occured when flashing a leaked JB rom and now won't turn on, not even in Download mode.
I'm in Australia but bought my phone in Malaysia so the local Samsung shop is refusing to repair it without replacing the main PCB. They advised that a repair would be possible without the hardware replacement, but it would be illegal for them to perform because of issues relating to the IMEI (WTF?).
I haven't been able to get any response out of the phone. The battery was very low when I flashed (terrible move, I know), is it possible that the battery now isn't charging and this is why I'm not able to go into Download mode? I have a few mates with the same phone so I could potentially try a charged battery in it...
All up - I'm guessing that I have to manually write to the EMMC.... Is this just a matter of obtaining a JIG cable and using Odin? I'd like to avoid opening the phone up, but I can do if it's my only option.
Cheers in advance
Paul
zeski said:
Hey everyone
I'm a bit lost as to how to get started with fixing my hard bricked phone. It occured when flashing a leaked JB rom and now won't turn on, not even in Download mode.
I'm in Australia but bought my phone in Malaysia so the local Samsung shop is refusing to repair it without replacing the main PCB. They advised that a repair would be possible without the hardware replacement, but it would be illegal for them to perform because of issues relating to the IMEI (WTF?).
I haven't been able to get any response out of the phone. The battery was very low when I flashed (terrible move, I know), is it possible that the battery now isn't charging and this is why I'm not able to go into Download mode? I have a few mates with the same phone so I could potentially try a charged battery in it...
All up - I'm guessing that I have to manually write to the EMMC.... Is this just a matter of obtaining a JIG cable and using Odin? I'd like to avoid opening the phone up, but I can do if it's my only option.
Cheers in advance
Paul
Click to expand...
Click to collapse
Try this:
http://forum.xda-developers.com/showthread.php?t=1667886
zeski said:
Hey everyone
I'm a bit lost as to how to get started with fixing my hard bricked phone. It occured when flashing a leaked JB rom and now won't turn on, not even in Download mode.
I'm in Australia but bought my phone in Malaysia so the local Samsung shop is refusing to repair it without replacing the main PCB. They advised that a repair would be possible without the hardware replacement, but it would be illegal for them to perform because of issues relating to the IMEI (WTF?).
I haven't been able to get any response out of the phone. The battery was very low when I flashed (terrible move, I know), is it possible that the battery now isn't charging and this is why I'm not able to go into Download mode? I have a few mates with the same phone so I could potentially try a charged battery in it...
All up - I'm guessing that I have to manually write to the EMMC.... Is this just a matter of obtaining a JIG cable and using Odin? I'd like to avoid opening the phone up, but I can do if it's my only option.
Cheers in advance
Paul
Click to expand...
Click to collapse
Thought you may need this..
http://forum.xda-developers.com/showthread.php?p=25869754
Sent from my SPH-D710 using xda premium
I'm assuming you only get an LED? ,If you are suffering Erase Cap there is very little that can be done at the stage you're at.
All information regarding Ecap can be found in that thread.
You may say hello in there and get somebody far wiser than me to pick it up..
Thanks for the suggestions guys.
Unfortunately the phone is completely unresponsive (although it does warm up when plugged in!)
I'm guessing it's the EMMC bug rearing it's ugliest form and it now needs me to bit a JIT kit to rewrite to it directly... but it'll take me weeks to learn up on that and get the parts...
I'm guessing I need one of these bad boys to proceed:
http://www.ebay.com.au/itm/RIFF-Box...ltDomain_0&hash=item25755f5616#ht_15039wt_909
Can anyone confirm/deny/comment? I'm gonna go out and grab myself an Ideos X5 to hold me over, but would love to go back to my Galaxy Note.
Leaked JB rom from where did you get that
Actually there is no leaked jb rom
Try using jig to enter download mode
Before flashing what ROM and Kernel are you on?
zeski said:
Thanks for the suggestions guys.
Unfortunately the phone is completely unresponsive (although it does warm up when plugged in!)
I'm guessing it's the EMMC bug rearing it's ugliest form and it now needs me to bit a JIT kit to rewrite to it directly... but it'll take me weeks to learn up on that and get the parts...
I'm guessing I need one of these bad boys to proceed:
http://www.ebay.com.au/itm/RIFF-Box...ltDomain_0&hash=item25755f5616#ht_15039wt_909
Can anyone confirm/deny/comment? I'm gonna go out and grab myself an Ideos X5 to hold me over, but would love to go back to my Galaxy Note.
Click to expand...
Click to collapse
Sorry to learn about your mishap. I suggest you should not waste money on RIFFBOX as there is little chance you will be able to revive your device in the condition it is, and if you are not into electronics, and don't have hands on experience of soldering (i mean really thin wires), this will be useless for you. I am telling this from my experience as I have same bricked note with me. Had it jtagged, but could not get it revived because the bootloader in eMMC is damaged, so the only option is to replace eMMC, which is physically impossible without sophisticated high tech machinery, or to replace the motherboard carrying eMMC chip. That is not available anywhere (not even on eBay last I checked), except Samsung Service Center, and at least in my country, they are charging like USD400 for the motherboard. I read in another thread here (cannot find it now) that it cost another guy about US$200 for the same thing else where (I think it was in India).
How much are they charging for motherboard replacement? I think you should go for this option as even if somehow you get your note revived without mb replacement, it is highly likely you'll still end up with partially damaged eMMC chip.
how did you know that it s the emmc brick?, i have my phone hardbricked before when i tried to use swap partition, and i get no responce from the phone also, i though it was the emmc brick bug, but i get it worked only with jtag, and costed me around 20$ only, and it wasn't the emmc brick, it was hardbrick but without emmc chip corruption.
the only way the emmc brick ocures is by:
wiping or formatting while on unsafe kernel
any thing else isn't emmc brick, and i think this your condition, you have to try jtag dear.
Thanks for the responses guys It's much appreciated.
I've ordered myself a little USB JIG, will see how that goes and proceed from there!
Emmc big is still present in the note 2 with jelly bean?
Sent from my GT-N7100 using xda app-developers app
u should ask this in the Note || forum mate.. there u will get more response... although.. the emmc was specific to ICS kernels..
nokiamodeln91 said:
u should ask this in the Note || forum mate.. there u will get more response... although.. the emmc was specific to ICS kernels..
Click to expand...
Click to collapse
Right, ICS kernels that are being modified to use on JB for phones that dont have jb kernel source... Like a samaung phone
Warning: hideous sig acomin..
Need a change of pace?
Odexing Data with a simple script
or
Change your boot splash-screen in two steps
Ya thats cuz there is no official uodate for note yet

[Q] LG Optimus Black Bricked

Hello All,
My OB is bricked, i was flashing it with smartflash tool and installing official lg optimus gb image, but suddenly it was bricked. Now it is not starting, not even in download mode, no signal of power.
Any ideas?
It caused bcoz of loose cable connection.
While flashing any ROM, cable should have intact connectivity..
usrelam types
sekhar13515 said:
It caused bcoz of loose cable connection.
While flashing any ROM, cable should have intact connectivity..
Click to expand...
Click to collapse
first of all thanks for replying.
I am not sure about loose cable connection, but what we can do in this case?
bandishjilka said:
first of all thanks for replying.
I am not sure about loose cable connection, but what we can do in this case?
Click to expand...
Click to collapse
Probably a hard brick, bring it to a lg service center. Tell them you tried to update your phone and all of a sudden the update stopped and now it doesnt react anymore.
Sent from my LG-P970 using xda app-developers app
ndittlo March
N00BY0815 said:
Probably a hard brick, bring it to a lg service center. Tell them you tried to update your phone and all of a sudden the update stopped and now it doesnt react anymore.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
ok, but is there any other way?
In case of hard rest, as N00BY0815 said, only way is to take the phone to LG service center, but you have to take precaution regarding:
Take out the memory card and keep at ur home, in case you rooted the phone, otherwise they will know that U rooted the phone and reject the warranty.
i dont think rooting is against warranty everywhere does your pc recognises it when you plug it in while holding p
volume+ ?
(check in manage computer)
theaks30 said:
i dont think rooting is against warranty everywhere does your pc recognises it when you plug it in while holding p
volume+ ?
(check in manage computer)
Click to expand...
Click to collapse
He already said, it doesnt even turn on in download mode, so there is no chance to revive it. LG will not know, if it was rooted or not, since noone can turn it on and check it. So just do what i told you above and everything should be good again
Sent from my LG-P970 using xda app-developers app
N00BY0815 said:
He already said, it doesnt even turn on in download mode, so there is no chance to revive it. LG will not know, if it was rooted or not, since noone can turn it on and check it. So just do what i told you above and everything should be good again
Click to expand...
Click to collapse
hi N00BY0815, sorry for offending, u r wrong, lg will definitely know what installed even on hard brick
I had this same happened months ago, lg recognised and rejected the warranty, I had to buy new board..
sekhar13515 said:
hi N00BY0815, sorry for offending, u r wrong, lg will definitely know what installed even on hard brick
I had this same happened months ago, lg recognised and rejected the warranty, I had to buy new board..
Click to expand...
Click to collapse
Then tell me how please. Not taking it as an offense glad if somebody knows it better, than me
Sent from my LG-P970 using xda app-developers app
sekhar13515 said:
hi N00BY0815, sorry for offending, u r wrong, lg will definitely know what installed even on hard brick
I had this same happened months ago, lg recognised and rejected the warranty, I had to buy new board..
Click to expand...
Click to collapse
This is software error not hardware error. They can't charge you buying new free software.
If its hardware error, in this case, then the problem is not caused by the root and they can't reject warrenty (at least in Europe, I'm pretty sure in most places they'll get away with it.)
EDIT
@Nooby
If they can't access it through new bootloader they have to use JTAG equipement and then you can read and write to flash memory.
Sent from my LG-P970
xonar_ said:
This is software error not hardware error. They can't charge you buying new free software.
If its hardware error, in this case, then the problem is not caused by the root and they can't reject warrenty (at least in Europe, I'm pretty sure in most places they'll get away with it.)
EDIT
@Nooby
If they can't access it through new bootloader they have to use JTAG equipement and then you can read and write to flash memory.
Click to expand...
Click to collapse
I have not much knowledge like xonar and N00BY0815,
Maybe they used JTAG or something ..bcoz at first they try to know whether it is rooted and non-rooted to get reject the phone here.
At that time, I contacted the most senior developers here in XDA, they also suggested that there is nothing to do if the phone is not turning on, & take it to service center...(the case is of LG P500)
That's strange. When I hard bricked mine, they kept my phone 3 weeks to finally say that it was the motherboard which died (I flashed a P990 rom by mistakes, it was for a friend but I forgot it in my sdcard).
Sent from my LG-P970 using xda premium
11 days ago i installed cm10 nightly 11-14-12 after using the rom about 4 days, suddenly while charging my phone turn off and didn't turn on again. It can't enter sw upgrade. When i send it to the lg service center they said that it was a motherboard problem and need to replace it. It cause P9,000 (about $214). What the F**K! The brand new Optimus black here cause around P13,000 ($309). My warranty is already expired so i decided not to replace the motherboard and wait for the release of nexus 4 here in my country.
That time i'm using blackberry charger 5v output. Do you guys think that the hardbricked has also something related to the charger?

LG G4 H811 T- Mobile Bootloop issue

Hello every one
I am new on this forum. Recently I am using my phone and open Bluetooth mistakenly and then my phone automatically restarted and then freeze and LG logo I took out the battery and put in then its start working and suddenly after sometime that happen again and I did the same process and did the factory reset and after factory reset the same problem happen.. Now its not working completely just freeze at lg logo and restart (Bootloop). Can anyone help me how to fix it. I find some solution on google that we have to stop 2 cores then this will work. Any one know how to do it? Right now I don't have money to buy another phone also.. I bought this phone in used Condition don't have any warranty. Phone Model LG G4 H811 T-Mobile.
Thanks in Advance.
lgg4h811 said:
Hello every one
I am new on this forum. Recently I am using my phone and open Bluetooth mistakenly and then my phone automatically restarted and then freeze and LG logo I took out the battery and put in then its start working and suddenly after sometime that happen again and I did the same process and did the factory reset and after factory reset the same problem happen.. Now its not working completely just freeze at lg logo and restart (Bootloop). Can anyone help me how to fix it. I find some solution on google that we have to stop 2 cores then this will work. Any one know how to do it? Right now I don't have money to buy another phone also.. I bought this phone in used Condition don't have any warranty. Phone Model LG G4 H811 T-Mobile.
Thanks in Advance.
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why dont you try to see if LG would fix it. theres no tot or kdz to disablle big cores..
or maybe search on baked motherboards it may work. maybe for a while..
raptorddd said:
why dont you try to see if LG would fix it. theres no tot or kdz to disablle big cores..
or maybe search on baked motherboards it may work. maybe for a while..
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Click to collapse
I am living in Pakistan, but don't know where I find LG office and would they help me because I bought it from local shop which selling only used phone and their is no warranty for the mobile. :crying:
lgg4h811 said:
I am living in Pakistan, but don't know where I find LG office and would they help me because I bought it from local shop which selling only used phone and their is no warranty for the mobile. :crying:
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Click to collapse
if its tmobile you need LG of america. only way is to bake or heat the motherboard or buy a new one.
I read many threads in this forum.. Just find this that if I use this procedure (in this thread https://forum.xda-developers.com/g4/general/howto-flash-models-tot-file-avoid-tot-t3282938 ) to edit the tot file and make to useful for my phone model. Will this work for me or not.. Please someone help me.
I am using MM.
Disabling cores on defective LG G4
lgg4h811 said:
I read many threads in this forum.. Just find this that if I use this procedure (in this thread https://forum.xda-developers.com/g4/general/howto-flash-models-tot-file-avoid-tot-t3282938 ) to edit the tot file and make to useful for my phone model. Will this work for me or not.. Please someone help me.
I am using MM.
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Click to collapse
Even if this works, and it has been known to work, it will result in greatly diminished performance on the part of the phone. You'll probably want to get a different phone after recovering the data.
robertpdx said:
Even if this works, and it has been known to work, it will result in greatly diminished performance on the part of the phone. You'll probably want to get a different phone after recovering the data.
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Click to collapse
Any good tutorial to do this will be appreciated. Actually I did baked my mobile motherboard but its still in bootloop. Help my Phone
lgg4h811 said:
I read many threads in this forum.. Just find this that if I use this procedure (in this thread https://forum.xda-developers.com/g4/general/howto-flash-models-tot-file-avoid-tot-t3282938 ) to edit the tot file and make to useful for my phone model. Will this work for me or not.. Please someone help me.
I am using MM.
Click to expand...
Click to collapse
someone edited with hexx and equal hard bricked.. dont know if he did something wrong. but he reported it bricked phone.
raptorddd said:
someone edited with hexx and equal hard bricked.. dont know if he did something wrong. but he reported it bricked phone.
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Click to collapse
Raptorddd is their any other way that will help me to disable big cores? Any tutorials? I really want to use this phone :/
lgg4h811 said:
Raptorddd is their any other way that will help me to disable big cores? Any tutorials? I really want to use this phone :/
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no that i know only h815.. i dont understand why rest of G4 cant.
only way. i think its freez it.. then disable ..main core.. ust a suggestion.. maybe itll work maybe not.. by freez i meant use freezer method and disable big cores.
raptorddd said:
no that i know only h815.. i dont understand why rest of G4 cant.
only way. i think its freez it.. then disable ..main core.. ust a suggestion.. maybe itll work maybe not.. by freez i meant use freezer method and disable big cores.
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Click to collapse
Well tell me the freezer method Now I will try this.
Now I try daily bake my phone motherboard but not enable to on the phone from bootloop maybe freezing method will work
lgg4h811 said:
Well tell me the freezer method Now I will try this.
Now I try daily bake my phone motherboard but not enable to on the phone from bootloop maybe freezing method will work
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https://forum.xda-developers.com/tmobile-g4/help/how-to-recover-data-boot-loop-defect-t3297766
lgg4h811 said:
Hello every one
I am new on this forum. Recently I am using my phone and open Bluetooth mistakenly and then my phone automatically restarted and then freeze and LG logo I took out the battery and put in then its start working and suddenly after sometime that happen again and I did the same process and did the factory reset and after factory reset the same problem happen.. Now its not working completely just freeze at lg logo and restart (Bootloop). Can anyone help me how to fix it. I find some solution on google that we have to stop 2 cores then this will work. Any one know how to do it? Right now I don't have money to buy another phone also.. I bought this phone in used Condition don't have any warranty. Phone Model LG G4 H811 T-Mobile.
Thanks in Advance.
Click to expand...
Click to collapse
Depending where you bought it LG will repair it with proof of purchase.
I bought mine from ebay and purposely made it bootloop so LG cud replace motherboard.
Sent from my LG-H811 using Tapatalk
Hello, a few years ago I successfully rooted Mt LG G4 H811 (T-Mobile) and everything was fine, except for a strange issue of not being able to boot into TWRP except by performing a button assisted hard reset. Then one day, as the old thing was grumbling through its routine, the signing remained. I then pulled the battery and permanently ceased it to function at all. Until this very night, more than two years later. I decided for gits & shiggles to plug in the charger and lo! Out started to take a change. Sorta. I knew it wouldn't fully boot, do I did the ol pill the battery truck and boot to recovery manually. I made it to the factory reset screen and moved the cutie the the "yes" position, but the power button would not engage the reboot. I tried several times with no luck. In fact, its lying here beside me, mocking me with that "Select yes to delete" line.
Any ideas whatsoever??

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