Hello folks,
after I bricked my Z2 LCD Display, Backcover and Bezel I replaced it twice by used parts from a smartphone dealer. Twice everything worked well except for the displays brightness. It is neary black, only visible under strong light irradiation. That lead me to a problem with the logic board or did I have had bad luck two times? Even if it showed crap, the bricked Display shined much brighter.
Any hints or experiences with that problem?
Regards,
-loepen09
Hi Loepen09,
I had the same Problem with my first Z2.
Everything worked without problems and suddenly during browsing or something the display got very very dark like in your description. Only under bright light it was possible to handle with the phone...
I've sent it to a repair Shop in Germany, they have replaced the display with backlight twice but no luck..
He said the the Problem was on the logical Board of the phone, something with the backlight Hardware. But instead of buying a new logical Board I bought a new Z2 and sold the old
Wish you good luck!
Best Regards!
Andreas
loepen09 said:
Hello folks,
after I bricked my Z2 LCD Display, Backcover and Bezel I replaced it twice by used parts from a smartphone dealer. Twice everything worked well except for the displays brightness. It is neary black, only visible under strong light irradiation. That lead me to a problem with the logic board or did I have had bad luck two times? Even if it showed crap, the bricked Display shined much brighter.
Any hints or experiences with that problem?
Regards,
-loepen09
Click to expand...
Click to collapse
Hi @loepen09
It is the LCD Illumination Fusible on the Mother board. there is plenty of threads on XDA talking about this one and it can be shorted and bypassed, it could have been blowed out because of the new LCD electrical parameters that differs from brand to another. Z2 comes with different brands LCD From factory.
http://forum.xda-developers.com/xperia-z2/help/backlight-xperia-z2-off-t2912525
michel090428 said:
Hi @loepen09
It is the LCD Illumination Fusible on the Mother board. there is plenty of threads on XDA talking about this one and it can be shorted and bypassed, it could have been blowed out because of the new LCD electrical parameters that differs from brand to another. Z2 comes with different brands LCD From factory.
http://forum.xda-developers.com/xperia-z2/help/backlight-xperia-z2-off-t2912525
Click to expand...
Click to collapse
Thanks a lot. As I don't have the right tools to bypass the fuse I'd prefer to buy a new Motherboard. Did I understand you right, that the same problem may occur with a new motherboard depending on the LCD brand?
loepen09 said:
Thanks a lot. As I don't have the right tools to bypass the fuse I'd prefer to buy a new Motherboard. Did I understand you right, that the same problem may occur with a new motherboard depending on the LCD brand?
Click to expand...
Click to collapse
bro, do not waste your money for a new mother board. it is a very easy 5 minutes job. you just need a soldering iron. you can take it to mobile or electronic repair shop and they will do the job for you.
You need to be sure that the problem is with this fusible before buying a new mother board. bypassing the fuse wont do any harm to your phone it just helps you to 100% identify the problem.
michel090428 said:
bro, do not waste your money for a new mother board. it is a very easy 5 minutes job. you just need a soldering iron. you can take it to mobile or electronic repair shop and they will do the job for you.
You need to be sure that the problem is with this fusible before buying a new mother board. bypassing the fuse wont do any harm to your phone it just helps you to 100% identify the problem.
Click to expand...
Click to collapse
Well, I called a few electronic repair shops but they all worry about guarantee. As far as I read about it, I have to remove the fuse and bypass it with solder, right?
loepen09 said:
Well, I called a few electronic repair shops but they all worry about guarantee. As far as I read about it, I have to remove the fuse and bypass it with solder, right?
Click to expand...
Click to collapse
yes right,
you can test it with a small jumper before soldering and see if the LCD Light illuminate or no. i don't know if you can manage to connect the battery and display and be able to test with the jumper, i think you need some one to help you with holding the mother board in the right position
If you are willing to buy a new motherboard than you can try and you don't have to worry on the Warranty issue electronic shops are talking about
What kind of jumper are we talking about - a simple piece of solder wire?
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Related
I bought a galaxy s2 recently and the screen fails to register my touches suddenly.
Here the weird part, the screen is able to display everything perfectly.. but half of the screen doesnt register my touches.. left side not working, but right side is working..
so decided to send my phone for warranty and after a month, the distributor said that the LCD Socket is faulty due to the phone is pressed too hard.. they say it needs to replace the whole LCD Screen..
Is it possible to replace the LCD Socket only?
Why would you risk attempting to fix it yourself & voiding your warranty when you can get it fixed for nothing/properly under warranty ?
They are charging me myr700 for replacing the Lcd screen.. how is posible to damage the socket where the Lcd screen is perfectly fine? (no cracks no scratches no dents)
By right they should replace it for me without paying anything right?
Ahhhh. They're charging you. OK. I don't know what the warranty covers in your country or what your rights are with regard to same.
I know in Australia if my screen started to die like that after a month Samsung would be paying to replace the screen/the phone. At worst I'd end up paying postage to send the phone in to them.
It might well be worth your while/cheaper replacing it yourself in that case. Not sure if it's possible to replace just the socket, you may have to replace the whole screen. Plenty of tutorials to show you how to do this online, and you can get the screens from a plenty of places online as well (eBay might be a good start).
Thanks for the suggestion..
I searched internet for the i9100 LCD Socket but no results found.. I guess I have to replace the whole LCD Screen already.. ebay selling them around myr600+ also.. So is it better to DIY or pay a little bit more and letting the professionals to do it?
There are some doubts that I would love to ask you.. I always place the phone inside my jean's pocket and they said the pressure of jean's is high enough to cause damage to the phone's internals. Is that true? The jeans Im wearing is not very tight either..
I guess whether worth saving MYR 100 is worth it or not depends on how technically adept you are, I.E, do you think you can swap the screen out successfully based on having a look at the video tutorials that show you how to do it ? If you're in any doubt, you'd probably want to have it done professionally. I cracked the screen of my Nokia N958GB about two weeks after I got it a few yrs ago, ended up having it done professionally as the saving if I did it myself would have been similar to your situation now (I would have saved maybe $50-$60 AUD). I'm just not dexterous enough to do a job like that perfectly
I keep my SGS2 in my front jeans pocket when I wear them & haven't had a problem, tho I do have a fake leather flip case. I'd be surprised if the pressure from having them in a not tight jeans pocket would be enough to damage the phone, unless you put pressure on the phone while it was in your pocket maybe ?
Sounds like they're trying to weasel their way out of repairing it under warranty to me, but the problem is (which other people have found on here over the past few mths I've been visiting here) trying to prove that they should repair it under warranty which would probably cost you as much/more than the repair is worth to have an 'expert' (someone who works with small electronics) examine your phone & who is prepared to issue a report or similar saying it's definitely a fault with the phone & wasn't caused by you.
Tricky situation you're in man Maybe contact a consumer organisation in your country and ask for advice if they still refuse to repair it under warranty ?
Hope you get it sorted under warranty.
aqblood said:
Thanks for the suggestion..
I searched internet for the i9100 LCD Socket but no results found.. I guess I have to replace the whole LCD Screen already.. ebay selling them around myr600+ also.. So is it better to DIY or pay a little bit more and letting the professionals to do it?
There are some doubts that I would love to ask you.. I always place the phone inside my jean's pocket and they said the pressure of jean's is high enough to cause damage to the phone's internals. Is that true? The jeans Im wearing is not very tight either..
Click to expand...
Click to collapse
Alright, thanks a lot for the information. I think I better let them repair the phone because if I repair the phone myself, its pretty risky and i might even damage the phone further.
I will try to discuss/talk to the distributor and try to solve this under warranty. tqvm. appreciate that.
No probs Good luck with it. Let us know how you get on.
aqblood said:
Alright, thanks a lot for the information. I think I better let them repair the phone because if I repair the phone myself, its pretty risky and i might even damage the phone further.
I will try to discuss/talk to the distributor and try to solve this under warranty. tqvm. appreciate that.
Click to expand...
Click to collapse
So my girlfriend dropped her s3 the other night , the screen stays off ( does not light up ) but the touch sensors still work, we can answer calls on it by knowing the approximate location of the answer button, any thoughts on what the issue is ? I would prefer to repair this at home rather than make her pay money through a shop, thanks in advance
Darknod66 said:
So my girlfriend dropped her s3 the other night , the screen stays off ( does not light up ) but the touch sensors still work, we can answer calls on it by knowing the approximate location of the answer button, any thoughts on what the issue is ? I would prefer to repair this at home rather than make her pay money through a shop, thanks in advance
Click to expand...
Click to collapse
It is easy to replace broken GLASS.
but i think you will need to replace screen.
If you purchase assembly of glass, digitizer and screen it will be very easy to replace by yourself.
quaker1985 said:
It is easy to replace broken GLASS.
but i think you will need to replace screen.
If you purchase assembly of glass, digitizer and screen it will be very easy to replace by yourself.
Click to expand...
Click to collapse
The glass isnt broken, perfectly clean with no scratches cracks or nicks , it just wont light up;
i had the same problem once, had to be sent to samsung (or wherever) by the shop where i bought it
buying a display and metal frame (obviously you can't buy them seperatly) plus glass would have cost almost the same
i wanted to find out whether the screen still works and it's a problem with my motherboard or vice versa so i unscrewed all bolts to access where the screen is plugged in on the motherboard but i didn't have another s3 to do the same and check it :silly:
still don't know how amoled displays work so it might be possible that whatever's responsible for backlighting the display broke
w0rinal said:
i had the same problem once, had to be sent to samsung (or wherever) by the shop where i bought it
buying a display and metal frame (obviously you can't buy them seperatly) plus glass would have cost almost the same
i wanted to find out whether the screen still works and it's a problem with my motherboard or vice versa so i unscrewed all bolts to access where the screen is plugged in on the motherboard but i didn't have another s3 to do the same and check it :silly:
still don't know how amoled displays work so it might be possible that whatever's responsible for backlighting the display broke
Click to expand...
Click to collapse
My thought was that the backlight broke or maybe the entire display system is disconnected , I might just have to take it apart for an exploratory operation,
before it went completely black there was a purple stain which grew until two thirds of my display were purple, the lower part where it started was black.
then i managed to open this samsung hardware debugging menu where you can check for dead pixels by letting your display light up in red, green and blue. there i found out that only blue and green pixels very working correctly in the upper third. the next day every purple pixel was dead.
so 2 months after this little stain appeared my whole display was in the same state as your girlfriend's seem to be now.
so i don't think this plug (it sits in place pretty tight) got loose and that's why it doesn't work anymore.
and my sister had exactly your problem. she dropped her s2 and it immediately went black
she hat to sent it in as well ...
good luck
if you find out what's the problem and want to share it, i am curious about it as well
If possible, check for loose connectors first.
I don't know about replacing the screen. The sheer amount of LOCA makes it a messy job.
Probably the display is dead. You'd need to replace the screen+glass.
There is no back light on an oled screen.
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Good evening!
My S3 has just fallen down. Now only physical buttons, back and menu are working. Screen has no physical damage but the digitalizer is not getting ANY of my touch. This makes me thing that it can be the internal connections. If it was broken I believe some screen zones would be still recognised. Then, I believe (and hope) digitalizer is in a well state. What are your thoughts about this?
Apart from this, how can I open the phone to check the connection. I've seen videos in which they replace the screen but I don't know if I can follow this procedure since, if it is still working, I don't know if I could re-glue it again.
Please, what can I do?
Thanks!
paco_ramirez said:
Good evening!
My S3 has just fallen down. Now only physical buttons, back and menu are working. Screen has no physical damage but the digitalizer is not getting ANY of my touch. This makes me thing that it can be the internal connections. If it was broken I believe some screen zones would be still recognised. Then, I believe (and hope) digitalizer is in a well state. What are your thoughts about this?
Apart from this, how can I open the phone to check the connection. I've seen videos in which they replace the screen but I don't know if I can follow this procedure since, if it is still working, I don't know if I could re-glue it again.
Please, what can I do?
Thanks!
Click to expand...
Click to collapse
It is very possibly your digitizer can be broken but not show any physical damage. If it happened right after a fall then this is a real possibility.
Do not try to pull the screen sections apart you will damage it. Get a new whole screen assembly
Thank you very much for the answer!. Could you please send me a reference of the whole screen assembly I need? You mean digitalizer plus lcd? just digitalizer? Could you provide me a good but cheap one?.
paco_ramirez said:
Thank you very much for the answer!. Could you please send me a reference of the whole screen assembly I need? You mean digitalizer plus lcd? just digitalizer? Could you provide me a good but cheap one?.
Click to expand...
Click to collapse
You will need the glass, lcd and digitizer. The term "whole screen assembly" should be enough.
Thanks for the info. I've seen prices of this replacement set and it's about 100$ (80€). I don't think I should pay so much for a 2-year phone. I am thinking about taking a Xiaomi redmi note 4g for 169€.
paco_ramirez said:
Thanks for the info. I've seen prices of this replacement set and it's about 100$ (80€). I don't think I should pay so much for a 2-year phone. I am thinking about taking a Xiaomi redmi note 4g for 169€.
Click to expand...
Click to collapse
Yer it is pricey, atleast in my country almost just as expensive to by a new s3 rather than get a new screen when you way up the aspects of a new phone plus the warranty
Hello guys, I hope for you expert opinion here. Yesterday I picked up my beloved Note 4 Global version and saw lines all of the screen, and it flickers all the time. It is definitely a hardware issue because the lines can be seen on the boot and in the TWRP. Also if I apply a bit of pressure on the phone on different sides, sometimes you can see the lines changing, ones they diapered for 5 minutes completely. I have dropped it a day before, from my trousers pocket, but it was fine for a while after that...
I bought this phone from www.gearbest.com and I live in Germany. After reading all the reviews about the warranty procedure I decided that I don't want to send it back to gearbest, because in the best case scenario I will get the phone in half a year, in the worst I won't get it at all.
My question is, do you think the fault is in the motherboard or LCD screen itself? I could buy a new LCD for 25 euros and replace it myself.
NiKiToS-04 said:
Hello guys, I hope for you expert opinion here. Yesterday I picked up my beloved Note 4 Global version and saw lines all of the screen, and it flickers all the time. It is definitely a hardware issue because the lines can be seen on the boot and in the TWRP. Also if I apply a bit of pressure on the phone on different sides, sometimes you can see the lines changing, ones they diapered for 5 minutes completely. I have dropped it a day before, from my trousers pocket, but it was fine for a while after that...
I bought this phone from www.gearbest.com and I live in Germany. After reading all the reviews about the warranty procedure I decided that I don't want to send it back to gearbest, because in the best case scenario I will get the phone in half a year, in the worst I won't get it at all.
My question is, do you think the fault is in the motherboard or LCD screen itself? I could buy a new LCD for 25 euros and replace it myself.
Click to expand...
Click to collapse
from the teardown video, the screen removal is not that hard but not sure if you can get the screen for 25 euros tbh. Best of luck~
asusm930 said:
from the teardown video, the screen removal is not that hard but not sure if you can get the screen for 25 euros tbh. Best of luck~
Click to expand...
Click to collapse
I know it's not hard, I've done it to other phones as well. The question is if it's the screen, or the motherboard.
Found a screen here, as far as I know, the 4X screen is compatible with Global version.
https://www.amazon.de/HYYT-Touchscr...30886&sr=8-1&keywords=xiaomi+redmi+note+4+LCD
NiKiToS-04 said:
I know it's not hard, I've done it to other phones as well. The question is if it's the screen, or the motherboard.
Found a screen here, as far as I know, the 4X screen is compatible with Global version.
https://www.amazon.de/HYYT-Touchscr...30886&sr=8-1&keywords=xiaomi+redmi+note+4+LCD
Click to expand...
Click to collapse
yweah ur concern is more on wether its a motherboard problem or screen problem right? gotta be tough buying a phone from china @ your place
asusm930 said:
yweah ur concern is more on wether its a motherboard problem or screen problem right? gotta be tough buying a phone from china @ your place
Click to expand...
Click to collapse
That is correct, I don't want to buy a new LCD to find out that some controller somewhere on the motherboard is dead.
Actually buying the phone was very easy. Having any kind of service is much harder. And you can't buy this phone in Germany. They don't sell them here.
NiKiToS-04 said:
That is correct, I don't want to buy a new LCD to find out that some controller somewhere on the motherboard is dead.
Actually buying the phone was very easy. Having any kind of service is much harder. And you can't buy this phone in Germany. They don't sell them here.
Click to expand...
Click to collapse
Can You Tell how the issue got resolved? Did replacing the LCD Work for You? I have the Same issue....
grc_king said:
Can You Tell how the issue got resolved? Did replacing the LCD Work for You? I have the Same issue....
Click to expand...
Click to collapse
Yeah, replacing the LCD did the trick, except I got my new screen cracked and have to replace it again :cyclops:
I decided to change camera as it has lost its focus. But some of my local shop say that this Phone can be opened thorugh front ie display. There say 80% changes that display+touch might break. I don't have idea about.
Is it true ? Or my local shop are noobs.
pranjalm said:
I decided to change camera as it has lost its focus. But some of my local shop say that this Phone can be opened thorugh front ie display. There say 80% changes that display+touch might break. I don't have idea about.
Is it true ? Or my local shop are noobs.
Click to expand...
Click to collapse
It is not, yes there is risk but not that much..., leeco glue can go off nicely afre some heat, i already changed my camera
I tried replacing camera from repair shop but focus issue is still present. He said it might be a motherboard issue. BTW tested on aex pie.
kihope12 said:
It is not, yes there is risk but not that much..., leeco glue can go off nicely afre some heat, i already changed my camera
Click to expand...
Click to collapse
How? I'm afraid that I breake the screen.
The screen, from info gathered on XDA & around the internet, is notoriously fragile. My X829 needs a new battery, so I bought a battery and a screen replacement kit just in case. I'll let you know how it goes, but I won't be able to do it until later this week, possibly not until the weekend.
Finally got the battery replaced. I DID break the screen though, even after applying heat and taking 20 minutes to slowly pry it off. So I'm glad I bought a replacement screen when I bought the battery. The new screen seems the same but (except the bezels are a different color ?). I'm definitely not a professional phone repair person, and in the past I have replaced already broken screens so I wasn't saving them for re-use.
If you've done a lot of phone repair and you have semi-professional equipment you might be fine, but my advice is to buy a screen too just in case.
I was afraid to i used some cheap repair kit from aliexpress, very big help is small glass swing and something like thin card what u pull between screen and frame. In any cases u can check YT there are planty of tutorials.