[Q] fix hard brick - Galaxy S II Q&A, Help & Troubleshooting

Is there a way similar to the method shown in this link, http://forum.xda-developers.com/showthread.php?t=1916796 to fix a hard bricked sg2?

What happened to your device?
Sent from the little guy

gastonw said:
What happened to your device?
Sent from the little guy
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Hard bricked. The device didn't turn on after restoring ROM/ flashing new ROM from CWM (can't remember because it was a long time ago). The download mode/ recovery mode doesn't work.

Shiniix3 said:
Hard bricked. The device didn't turn on after restoring ROM/ flashing new ROM from CWM (can't remember because it was a long time ago). The download mode/ recovery mode doesn't work.
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Click to collapse
So you wiped/restored while on 4.0.4....yeah, you can bring it back by getting a new mobo.

gastonw said:
So you wiped/restored while on 4.0.4....yeah, you can bring it back by getting a new mobo.
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Click to collapse
Why get a new motherboard instead of JTAG

Because it's unlikely a JTAG would work. If the NAND is stuffed, it needs to be replaced. Samsung don't sell NAND's separately (or new motherboards without an authorised service centre performing the swap), so you replace the whole board; either a service centre putting a new board in, or you get a 2nd hand board from a broken/donor phone & you swap it yourself.

MistahBungle said:
Because it's unlikely a JTAG would work. If the NAND is stuffed, it needs to be replaced. Samsung don't sell NAND's separately (or new motherboards without an authorised service centre performing the swap), so you replace the whole board; either a service centre putting a new board in, or you get a 2nd hand board from a broken/donor phone & you swap it yourself.
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Can I use a i9100g motherboard instead of i9100?

No. Read up on the differences between the i9100 and i9100G. They have different processors for a start.
Sent from my GT-P7510 using Tapatalk 4 Beta

Hi guys,
I bought an i9100 with cracked screen, it would turn on and welcome sound could be heard but nothing would be displayed, not the boot logo. I replaced my motherboard with it. But now the problem is, LCD seems to be not working. When I turn on the device, welcome sound can be heard and I can unlock the phone but can't see anything. While the phone is still on and I lock&unlock my phone using power button, the screen kinda flashes white. Do you think the problem is with my LCD or motherboard itself?:crying: Screen was perfectly fine before I hard bricked my phone.
Thanks.

LCD is Damaged!!
Shiniix3 said:
Hi guys,
I bought an i9100 with cracked screen, it would turn on and welcome sound could be heard but nothing would be displayed, not the boot logo. I replaced my motherboard with it. But now the problem is, LCD seems to be not working. When I turn on the device, welcome sound can be heard and I can unlock the phone but can't see anything. While the phone is still on and I lock&unlock my phone using power button, the screen kinda flashes white. Do you think the problem is with my LCD or motherboard itself?:crying: Screen was perfectly fine before I hard bricked my phone.
Thanks.
Click to expand...
Click to collapse
Nah!!! :silly: this cant be a motherboard problem as you can hear the lock and unlock sound and the screen is flashing... this means that the motherboard is fine and working but looks like the LCD is not working.
oops!! This means the only solution to the problem is to change the LCD Screen as there is no other way to fix this!!
Sorry!!

ksjd said:
Nah!!! :silly: this cant be a motherboard problem as you can hear the lock and unlock sound and the screen is flashing... this means that the motherboard is fine and working but looks like the LCD is not working.
oops!! This means the only solution to the problem is to change the LCD Screen as there is no other way to fix this!!
Sorry!!
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Click to collapse
Oh, I was thinking that maybe the part of the motherboard where we connect the LCD flex cable was damaged because my screen still kinda lights across the screen when I unlock it and my screen was fine before hardbrick/replacing mobo.

Go Ahead
Shiniix3 said:
Oh, I was thinking that maybe the part of the motherboard where we connect the LCD flex cable was damaged because my screen still kinda lights across the screen when I unlock it and my screen was fine before hardbrick/replacing mobo.
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hmm... so this problem can be fixed... so are you going buy a new mobo or your going to go ahead fixing this issue?
well i suggest its better you fix this issue as it wont cost you much and looks like the motherboard is working fine... so there is no problem

ksjd said:
hmm... so this problem can be fixed... so are you going buy a new mobo or your going to go ahead fixing this issue?
well i suggest its better you fix this issue as it wont cost you much and looks like the motherboard is working fine... so there is no problem
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Yeah I tried to fix this issue and ordered a new LCD but it also does not show anything on the screen so I guess mobo is the problem?

Related

[Q] motherboard replacement

Hello guys.
My x10i has got a faulty motherboard and is now being repaired. The motherboard is being replaced with a new one. Now my question is that whether the handset will behave normally?
Is the in ear speaker will be also replacaed or not. Is it attached with the motherboard or not.
Wat are the precautions shd i take care of before taking the handset from the service centre?
Thanks guys.
Hey guys. I got my x10 back today. Its motherboard has been replaced.
Now the problem im facing is that the hardware buttons except the power button stop working after 3-4 mins.
They work alright after every restart for 3-4 mins. Pls tell me wats going on.
Im trying to re update the software but its not working.
Thanks guys.
Sounds to me you can go back to the repair centre...there is no setting in your phone which controls it after a clean flash, so something is wrongly programmed I assume...
Sent from my X10i using Tapatalk
tinny9 said:
Now the problem im facing is that the hardware buttons except the power button stop working after 3-4 mins.
They work alright after every restart for 3-4 mins. Pls tell me wats going on.
Thanks guys.
Click to expand...
Click to collapse
Do you have a case on your phone? I bought a stupid cheap one, and couldn't for the life of me figure out why my bottom buttons weren't working....Did a factory reset and everything..Even though the case didn't cover the buttons, still messed them up
Took the cover off, no problems.
Why have you replaced your motherboard? What kind of problems did you had(i just want to know; maybe it can help me )

[Q] Atrix Hardware Problem Touchscreen

The top part of my Atrix would not fully respond to touch, and so I ordered a replacement digitizer for it. I installed the digitizer today and instead of the problem being fixed, the area of non responsiveness has increased, the 1 inch or so below the initial deadspot is also not responding. Also, the proximity sensor fails to turn off when I'm in a call and the phone is not near my face. What other hardware problem could it be that's causing the dead spot on my touchscreen and how to fix it?
I had the same exact problem when I first got my atrix and When I did a research on the issue I found out that I wasn't the only one and it turned out that it was a factory defect...if your atrix is still under warranty you shouldn't have any problem of getting a replacement
Oh man,
The problem is the boot loader is unlocked and I did go and replace the digitizer myself, so I'm pretty sure the warranty is voided. Any solutions or am I dead in the water?
BlackKnight12 said:
Oh man,
The problem is the boot loader is unlocked and I did go and replace the digitizer myself, so I'm pretty sure the warranty is voided. Any solutions or am I dead in the water?
Click to expand...
Click to collapse
hehe! Its kinda weird solution but it'll work! Just hard brick your device! If you are in gingerbread & flash any lower SBF the phone will be hardbricked. So you won't be able to go the bootloader state.
So then you talk to Motorola & say them you screwed things up while updating the set to GB. (Be a stupid in front of them)
They'll replace your phone.
Its not the great solution but it may work perfectly!
saiftheboss7 said:
hehe! Its kinda weird solution but it'll work! Just hard brick your device! If you are in gingerbread & flash any lower SBF the phone will be hardbricked. So you won't be able to go the bootloader state.
So then you talk to Motorola & say them you screwed things up while updating the set to GB. (Be a stupid in front of them)
They'll replace your phone.
Its not the great solution but it may work perfectly!
Click to expand...
Click to collapse
i did this..works:]
Had a cracked screen so I ordered a new digitizer. the old digitizer worked but was cracked all across the screen. I carefully removed the broken screen and replaced it. its now not responsive at all. I checked for damage to the ribbons but see no tearing crimping or other signs of damage, is it possible the replacement i ordered was defective? I mean lcd works great, volume rockers work in recovery but no touch response on screen.
http://forum.xda-developers.com/showthread.php?t=1295542&page=3
wozhere said:
http://forum.xda-developers.com/showthread.php?t=1295542&page=3
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Click to collapse
I don't think thats the case because my screen was responsive with the damaged screen. I connected the ribbon clip several times to no avail. I am leaning towards faulty replacement digitizer. thanks for your response though.
Edit: the digitizer I ordered was damaged, I have since replaced it and it works great

L9 P760 LCD screen not turning on

I got a realy stupid problem on the lg l9 P760. It's my girlfriends phone and she droped it once and now the lcd screen won't turn on, but the phone itself turns on. Trying to repair it i bought a new screen for 50€ and replaced the old one and it still doesn't work. What coould be the problem? Did i throw 50€ out of the window? I hope you guys can help me out, thx.
Edit: Any way of accessing the phone to delete content? Or is there a way to install a new firmware on it via pc without using the screen on the phone?
Would be nice if anyone had any idea what i should do or try next.
dna² said:
Would be nice if anyone had any idea what i should do or try next.
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Click to collapse
I think you should send it to LG service center. They can check and identify the problem. I think it's hardware problem.
artit said:
I think you should send it to LG service center. They can check and identify the problem. I think it's hardware problem.
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The problem is will they do it? I already opened the phone and replaced the lcd screen wouldn't that void the warranty?
dna² said:
The problem is will they do it? I already opened the phone and replaced the lcd screen wouldn't that void the warranty?
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Click to collapse
I think so. But hardware problem is hard to solve in this forum and it's good to try LG service center even you already void the warranty. You may have to pay for their service.
Yeah but if they do it they are gonna bill me like 100€ and considering i already paid 50€ for a new screen that's 150€ repair costs for a 250€ phone not counting any shipping costs. I just emailed them and told them what happened.
I sent the 50€ lcd back and got a refund, bought another one from a different seller. This lcd screen doesn't work either. Only the led lights turn on, the lcd stays dark
Everything else works! The phones turns on, vibrates plays the starting sound and reacts to touch input. What the hell could it be? Is it again a bad lcd screen or maybe it's not event the lcds fault?! I am realy out of ideas and need help.
Edit: A repair website in my country that i wrote a email to said there's a chip on the mainboard that is responsible for the backlight on the screen. That chip must be dead or something, because no screen worked.
DNA89 said:
Edit: A repair website in my country that i wrote a email to said there's a chip on the mainboard that is responsible for the backlight on the screen. That chip must be dead or something, because no screen worked.
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Click to collapse
I have same problem. Did you solve this? I have one motherboard for spare parts, but i dont know what chip to replace??

[Q] Need Help with screen

So it looks like a small part of the top of my screen is dead, already tried everything and no luck, The draw line test shows about a 10% of the screen not working. I think this might be a hardware problem, but not sure.
If its the hardware, is it possible to only replace the Digitizer glass, without replacing the LCD screen?
Where can I buy the part (hopefully Original, I read that third party replacements are usually disappointing, because of quality.)? I tried searching in ebay and amazon and was only able to find for the HTC one X not the plus version.
Is it too hard to replace or i'm better saving for a new phone?
Do you mean the area where the status bar is? My HOX+ also doesn't recognize touches there. It happened suddenly 5 months ago when I was playing games . However, I used to it and it is not a big problem, I will give it to repair when I get on vacation .
I already made some researches on the internet and it is not an uncommon problem for touch screens. Yes, it is the digitizer's fault.
/\/\ said:
Do you mean the area where the status bar is? My HOX+ also doesn't recognize touches there. It happened suddenly 5 months ago when I was playing games . However, I used to it and it is not a big problem, I will give it to repair when I get on vacation .
I already made some researches on the internet and it is not an uncommon problem for touch screens. Yes, it is the digitizer's fault.
Click to expand...
Click to collapse
Exactly the same problem, upper part of the screen (all notification bar). I have an OCD and this tiny things bug me a lot. I guess now I need to find a digitizer to replace it, the problem is that on ebay and other sites there are not HOX+ available, all are for the HOX.
Is there any difference between HOX and HOX+ digitizers? I thought both got the same screen.
I'm not an expert so I won't fix it on my own, better send it back to service .
Btw. I've read one time that you can put a piece of paper between the bezel and grill to clean some mess up which could get inside the phone. I was wondered that I was able to slip the paper there, but it didn't work .
Arcano30 said:
So it looks like a small part of the top of my screen is dead, already tried everything and no luck, The draw line test shows about a 10% of the screen not working. I think this might be a hardware problem, but not sure.
If its the hardware, is it possible to only replace the Digitizer glass, without replacing the LCD screen?
Where can I buy the part (hopefully Original, I read that third party replacements are usually disappointing, because of quality.)? I tried searching in ebay and amazon and was only able to find for the HTC one X not the plus version.
Is it too hard to replace or i'm better saving for a new phone?
Click to expand...
Click to collapse
Hi you will find your parts here they sell OEM parts. (http://www.etradesupply.com/htc.html)
Goodluck!
Dont forget to hit the thanks button
Optimus said:
Hi you will find your parts here they sell OEM parts.
Goodluck!
Dont forget to hit the thanks button
Click to expand...
Click to collapse
Anyone tryed to replace screen with digitizer? it helps?
Screen replacement
edenlt said:
Anyone tryed to replace screen with digitizer? it helps?
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Click to collapse
Hi goto youtube and see a video how to replace..
Optimus said:
Hi goto youtube and see a video how to replace..
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Click to collapse
Hi, i know how to replace it, my question was if i replace screen dead zone will dispier?
edenlt said:
Hi, i know how to replace it, my question was if i replace screen dead zone will dispier?
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Click to collapse
yes it will work, but you can't only change the digitizer, it's too hard glued together. I broke my LCD connector while replacing the screen although
I was really careful, so it's not as easy as everyone says.
Thx, i will keep that in mind.

[Q]flickring screen problem

hello, i broke my screen lately and i replaced it at a lab,after the repair my screen is sometimes flickering.
i think it was flickering from before the repair but after the repair it got worst,i am not sure.(if it was it was only at the top of the screen now..its every where)
does anyone have any ideas about the source of the problem ?
or if anyone know how to solve it even better
thank you for your help...
If still problem exist after screen replacement then I think there is problem in new screen, try again another screen if still it exist then may be there is serious problem with GRAPHIC IC ( I am not sure about this), You may have to change 220 in your Graphic IC which include soldering but seriously this is very(x3) risky, because any wrong thing can put your phone in nothing.
In case If you brought your screen from online site, then contact to seller and ask them for refund or another screen
Best of luck
veer.killerboy said:
If still problem exist after screen replacement then I think there is problem in new screen, try again another screen if still it exist then may be there is serious problem with GRAPHIC IC ( I am not sure about this), You may have to change 220 in your Graphic IC which include soldering but seriously this is very(x3) risky, because any wrong thing can put your phone in nothing.
In case If you brought your screen from online site, then contact to seller and ask them for refund or another screen
Best of luck
Click to expand...
Click to collapse
first of all thank you for your reply,
as i said i replaced my screen at a cellphone lab so you think i should go there again and ask them to replace the screen?
as i also said its not happening all the time... it can be flickering for 15 min and then nothing for another hour ( on & off)
no way its just a loose cable/connector some where?
xzfzx said:
first of all thank you for your reply,
as i said i replaced my screen at a cellphone lab so you think i should go there again and ask them to replace the screen?
as i also said its not happening all the time... it can be flickering for 15 min and then nothing for another hour ( on & off)
no way its just a loose cable/connector some where?
Click to expand...
Click to collapse
Stock ROM or custom one? Cause my screen flickers sometimes too, but I'm fairly sure it's due to adaptive backlight feature in most of the AOSP roms around
aardappel12 said:
Stock ROM or custom one? Cause my screen flickers sometimes too, but I'm fairly sure it's due to adaptive backlight feature in most of the AOSP roms around
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Click to collapse
viper ROM, any known issues?

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