Question about the S5 Logic board/ LCD - Galaxy S 5 Q&A, Help & Troubleshooting

My wife dropped her phone, the lcd screen went completely black but the phone would still respond to swipes, volume buttons etc, everything worked BUT the screen. I insisted on fixing my wife's phone myself but she wanted to be hard headed and take it elsewhere. Long story short, the guy told her he couldnt fix her phone because it wasnt the screen that was dead, it was the LOGIC board. I am thinking the guy didnt know how to repair the S5 properly so he gave that excuse. MY thinking is, if the logic board was dead, it wouldnt boot nor respond to touches ( I can hear the camera take pictures when I press the button where it was located on the screen.) So now I am doing the repair myself and I just wanted to get some clarification on the logic board not being dead due to obvious reasons stated above.

..

Here some help to you
https://www.youtube.com/watch?v=7pROEuvGIOQ
https://www.youtube.com/watch?v=_sYLMKdumjw
hope it helps

Were you able to get the device to work? I have a similar situation and didn't know if the board is actually bad or just the LCD.
Thanks

Related

display problems

Hey there!
my friend has one of these HTC Touch, accidentally it fell on the floor when she was partying..
the display broke down... I changed the display but it works like 5 minutes and than it says that it needs to be calibrated, so we perform the calibration, but at this time I can´t even pass through the calibration. Have to do the calibration a couple of times and than it works fine again...
another time it when I tried to send some sms another calibration request came out, but this time it worked again after first recalibration..
It´s not very user friendly when you have to do the display calibration again and again....
Please any solutions??
touchscreen is probably loose because of the fall
try pushing the sides of the screen, it might snap itself in its position
yes i hadbsame problem....sometime it worjk and sometimes not.
(google translate):
not a few minutes, even the first problem, I thought the silvery on top of the screen display would be a film, it had settled a bit now, I have noticed that the touchpad is probably a way which responds to the stylus, it only reacts even if I pressures on the htc logo, otherwise, as indeed are among the contacts, how can I re-ordered or re-stick?
LCD-Screen is broken or its the motherboard (maybe it's that little strip which is connected to the LCD-screen and the motherboard or the LCD-Screen itself is broken), the digitizer is probably fine, if you've a warranty on your phone then send the phone to them and say that the phone stopped reacting on your taps (tell the story in a way that it wasn't your fault, so yes I request you to lie about the issue). If you've no warranty call your insurance and tell the story (again). If that didn't worked buy a OEM LCD-Screen and find a tutorial how to replace it (calling your insurance is the best one of all 3).
lcd replacement
yes yes... I did replace the LCD display, but nothing happened. It behaves in the same way as I wrote in the first post. Think the motherboard could be broken. I gave up on it. There was no warranty so I looked for another HTC but thx a lot to all here....
Please post in the correct forum, as your problem solved closed and moved.

HTC HD2 Screen Unresponsive

Hello Gents and Gals. I am trying to fix my friends HD2, I flashed his ROM with Energy couple of months ago and all was working fine. He gave the phone back to me saying that it is locked.
I tried unlocking the phone but it seems that the screen is unresponsive, so I flashed it again by going into the boot loader screen "Volume Up + Power Button". The phone stated that it is starting for the first time but the screen was still unresponsive. Any ideas on how to fix this issue? Or do I need to tell him to send the phone back to HTC for repairs?
Sounds like the touch screen died ....
Time for a repair ..
Also this really should have been posted in general , as it is not a ROM release , just an FYI
Aww okay. I'll let him know. Thanks.
I'll post like this in General next time. Tks.
HI, I have now the same problem after ROM Flashed, did you solve the problem by yourself, or really the touch screen died.
Rgds
Same thing with me. I ordered new digitizer+LCD and changed them, but the screen is still unresponsive. Other ROM didn't help.
Some advices?
i seen this happen with several phones, reflash to stock and send to HTC they will repair it for free.
I have same problem,yet my phone was bought 18 months ago...worked perfectly until now.
Can a touch screen get defective after normal usage ?
alexandruvlad said:
I have same problem,yet my phone was bought 18 months ago...worked perfectly until now.
Can a touch screen get defective after normal usage ?
Click to expand...
Click to collapse
Yes it can, if your touch functionality of your HD2 has stopped working then your digitizer has probably went out.
T-Macgnolia said:
Yes it can, if your touch functionality of your HD2 has stopped working then your digitizer has probably went out.
Click to expand...
Click to collapse
Yeah,that's what i thought too - but i read some situations where replaced LCD + Digitizers didn't solve this problem.....
alexandruvlad said:
Yeah,that's what i thought too - but i read some situations where replaced LCD + Digitizers didn't solve this problem.....
Click to expand...
Click to collapse
This is usually due to the replacement components not being properly installed. Also when one is working with the internals they have to be very careful as some of the internals are very easy to break without you even knowing you did. So the cases you spec of are more than likely not because it was not the Digitizer or LCD was not the problem, but human error.
i fixed mine and it didnt cost me
the unresponsive screen maybe the digitizer buts its more likey the end call button, believe it or not dirt can get behind the contact or because the back button is next to we use the far edge of the end call button thus leading to bending the contact, when any of this happens your screen will be unresponsive
you can either take it to a shop and pay for a new screen and digitizer or take it apart and clean the contacts
go to ifixit for step by step guides
hope that helps
Intrigued
dgr1983 said:
... buts its more likey the end call button, believe it or not dirt can get behind the contact or because the back button is next to we use the far edge of the end call button thus leading to bending the contact, when any of this happens your screen will be unresponsive
Click to expand...
Click to collapse
I have no idea what are you talking about, that doesn't make sense, as far as I know is no direct relation between END button and (non-working/responding) touchscreen: you may even disconnect/replace bottom buttons ribbon/flex from motherboard and touchscreen will work if OK(or not, if defective).
Is there anybody who can confirm this(or not)?
3 weeks ago I had a LCD/digitizer replaced (cracked screen, but was still working) all was great till 2 days ago. Screen stopped working - took it back to the place I had replace the screen and they tried 3 brand new screens and still no go. Ended up being my main board - luckily I had a spare HD2 and they pulled that board and all is well again.
Believe it or not your LCD/digitizer might be fine - find someone or a way to test main board would be where I would start after the last 3 days.
Good luck
PS - I did NOT try the end button idea prior to the repair.
Zergalot
zergalot said:
3 weeks ago I had a LCD/digitizer replaced (cracked screen, but was still working) all was great till 2 days ago. Screen stopped working - took it back to the place I had replace the screen and they tried 3 brand new screens and still no go. Ended up being my main board - luckily I had a spare HD2 and they pulled that board and all is well again.
Believe it or not your LCD/digitizer might be fine - find someone or a way to test main board would be where I would start after the last 3 days.
Good luck
PS - I did NOT try the end button idea prior to the repair.
Zergalot
Click to expand...
Click to collapse
If still in your possession, I would be interested to buy the motherboard you just replaced!
PM me if interested!
htc hd2 screen died
I also have a 2009 htc hd2 on which screen does not work.
I'd like to know if it's
- a common problem
- is it possible that it's a software (flashing) issue
- can it be replaced and for how much
martinmartiini said:
I also have a 2009 htc hd2 on which screen does not work.
I'd like to know if it's
- a common problem
- is it possible that it's a software (flashing) issue
- can it be replaced and for how much
Click to expand...
Click to collapse
From my own experience :
1. It's a common issue, there are hundreds of reports in this forum and I read them all because I had the same problem some months ago
2. Probably not. It's generally hardware-related and often the digitizer (touch responsive screen) . Brief explanation : There's a flaw in the design of the HD2, the thin cable wiring the digitizer to the motherboard, is just below the power button. After some extensive use of your powerbutton, it might happen that the power button touches the cable and cause some kind of shortcut in it which makes the digitizer unresponsive to the motherboard.
3. I replaced mine here : http://www.htcphonerepairs.co.uk/ . Fast repair, secure shipping to Belgium, good price and excellent customer support. (Sounds like advertizing but I swear to be only a happy customer )
There are also multiple videos on youtube explaining how replacing the digitizer yourself if you dare !
Also, I read answers saying that you can somewhat "play" with your buttons (especially the power one) to turnaround the problem. That's correct, BUT it's absolutely inevitable that the problem with come back again if you use the buttons, and you'll have to force more and more to unblock again and repeat again and a again... and that will damage your button bar.
I did this during almost 2 months and that put down all my buttons and now they are really close to the chassis which is very annoying. If only I knew it before I would have replaced the digitizer directly !
For 6 months with my new digitizer + using ICS with soft buttons, I have no problem at all !
bib*oops said:
I have no idea what are you talking about, that doesn't make sense, as far as I know is no direct relation between END button and (non-working/responding) touchscreen: you may even disconnect/replace bottom buttons ribbon/flex from motherboard and touchscreen will work if OK(or not, if defective).
Is there anybody who can confirm this(or not)?
Click to expand...
Click to collapse
Just because this dude has "no idea" it doesn't mean he knows it better.
It IS the END button that gets pressed too often and at some point it begins to mess with the digitizer connection. It can be dirt. It can just be the cable came lose and needs tightening, it can be wear-out.
whatever it is, it is caused by the end-key being too close to the connector cable.
If you guys only searched for this on the HD2 Forums before posting this Thread hat not been necessary. It is the most well known design flaw of the HD2 and as such well documented and commented here.
Sneakyghost said:
Just because this dude has "no idea" it doesn't mean he knows it better.
It IS the END button that gets pressed too often and at some point it begins to mess with the digitizer connection. It can be dirt. It can just be the cable came lose and needs tightening, it can be wear-out.
whatever it is, it is caused by the end-key being too close to the connector cable.
If you guys only searched for this on the HD2 Forums before posting this Thread hat not been necessary. It is the most well known design flaw of the HD2 and as such well documented and commented here.
Click to expand...
Click to collapse
This is truth. Save yourself some time and frustration and repair it or get it repaired. It's a great phone.
Sneakyghost said:
Just because this dude has "no idea" it doesn't mean he knows it better.
It IS the END button that gets pressed too often and at some point it begins to mess with the digitizer connection. It can be dirt. It can just be the cable came lose and needs tightening, it can be wear-out.
whatever it is, it is caused by the end-key being too close to the connector cable.
If you guys only searched for this on the HD2 Forums before posting this Thread hat not been necessary. It is the most well known design flaw of the HD2 and as such well documented and commented here.
Click to expand...
Click to collapse
You didn't get it right or at all:
END key may determine touchscreen failure along the time(being the CAUSE! of this), but the EFFECT is an unusable touchscreen, which cannot be repaired in any other way than replacing it(the touchscreen!!, I mean).
Any other attempt to repair, clean, bend, press, cut or whatever WILL NOT FIX an already faulty touchscreen (even caused by END button excessive or not usage) and who thinks otherwise, no problem with me: SWEET DREAMS!
You sound like my comment hurt you. Sorry if it did. I'm not one hundred percent sure that this issue can be fixed without replacing the screen, yet fairly certain. I've now disassembled two HD2 and couldn't quite find the precise spot where the damage occurred, yet after properly assembling the devices again, one came back alive, the other not. The one which has the screen and buttons not working right is the one that got thrown at me by a kind person. It most likely has physical damage somewhere, although I couldn't locate it. The other one didn't get damage and has screen and buttons work well after complete disassembly and assembly.
Both devices also have different screen types.
I now gave up both devices and am withdrawing myself from the HD2 world. Too many issues with the devices getting old.
sent from the tip of my finger

[Q] HD2 Screen Trouble, Looking for an answer to buy the right part

Greets all,
I know probably this is the wrong section but I thought I would get a quicker response to my dilema. I was testing out my rom on my Test HD2 phone (I have two of them) and this one has the infamous end key issue, and tested my patience, so I read that if you use a very small flathead screw driver and push a certain place, you can get it to unstick, being that I tried all my methods that usually worked, I decide to try, well, the screwdriver slipped under the button part between the end key and the back key and screwed up my screen where I have all funny colors all over. So I was wondering if any could tell me if this is a LCD problem or a digitizer problem. There is no running liquid on the screen. The screenshot below is exactly what my screen looks like, and I want to buy the replacement, but I dont want to buy the wrong part and waste money, so can someone please let me know what it is that I have to replace? Thanks!
AngelDeath said:
Greets all,
I know probably this is the wrong section but I thought I would get a quicker response to my dilema. I was testing out my rom on my Test HD2 phone (I have two of them) and this one has the infamous end key issue, and tested my patience, so I read that if you use a very small flathead screw driver and push a certain place, you can get it to unstick, being that I tried all my methods that usually worked, I decide to try, well, the screwdriver slipped under the button part between the end key and the back key and screwed up my screen where I have all funny colors all over. So I was wondering if any could tell me if this is a LCD problem or a digitizer problem. There is no running liquid on the screen. The screenshot below is exactly what my screen looks like, and I want to buy the replacement, but I dont want to buy the wrong part and waste money, so can someone please let me know what it is that I have to replace? Thanks!
Click to expand...
Click to collapse
Its definetly an LCD issue, anyways not a major issue, as long as you can dismantle the phone and clear up the area btw the LCD and Keypad, i guess it should be back to normal
When you say Clear up the area, mind clarifying what that means? I can dismantle the phone, at this point it would probably be cheaper then sending for repair especially that its most likely out of warranty anyway.
I'm pretty much under the impression I am going to need to buy a lcd/digitizer combo to fix this. Unless I dont have to, cause like I said there is no bleeding and the phone works fine (minus the touchscreen issue caused by the end key) I can navigate thru the phone using droid explorers Screencast.
well what i intened to say was that there could be particles of dust or debris that is causing the LCD ribbon to come out a little, Coz i had a similar issue with "Dead touchscreen workin hard press end key " , later when i dismantled the phone and put it back again my screen looked exactly like yours, all i had to do was open it again and fix the LCD flex to the Main board properly thats all.
on a side note:
Well the touchscreen issue eventualy died all together, and i now have a replaced LCD from HTC and the screen is dull

IEMI Number

hi there just a question
i dropped my s4 in for a screen repair, bairing in mind that i had a fault on the phone already where there was no sound in my other posts.
they bought the phone back out to me without a changed screen and said when they swapped the screen it flashed up white and he suspected a fried motherboard
which i find hard to believe since before he swapped the screens it booted in my hand, i told him to replace the screen anyway, i plugged the phone into a charger and nothing, not even an LED indicating charge? how can this be possible when prior to screen change the phone booted? if anything there was still power there
so im looking for any way of identifying the motherboard? im kinda thinking hes changed that out too to get me to pay for a motherboard i dont need
Cheers!
if theres any other advice please dont hesitate!

Half of screen showing static, carrier refused to repair. Can I fix it myself?

Hi there,
A couple of weeks ago, my Note 4 began to act up. Every so often the right hand side of the screen would freeze up and eventually show static.
These pictures aren't mine, but they show the exact issue: http://imgur.com/a/LqoeA
Anyway, I decided to go to my phone carrier (EE) to get it repaired as it was still in warranty. They agreed that this would be covered and sent it to their repair center. The repair center then contacted me and told me that the fault was due to water damage (which is impossible as my Note has never touched water) and sent it back, refusing to fix it. When I got it back, it was in a complete state. They had broken the LCD and Digitizer to the point where the screen wouldn't even turn on anymore, and it was hanging out by the ribbon cables (The home button and flex cables for the soft keys were also extremely loose).
Because of this, I decided that I'd have a go at fixing it myself. I went online and bought a new LCD + Digitizer. I've just fit it and now whilst the screen powers on again, I've come full circle as the static issue still is present.
Is there any more I can do or is there no way of getting this fixed without professional aid? I'm unable to send it in for repairs because the repair center obviously are unwilling to work on it, and even if they were now, I wouldn't trust them as they inflicted even more damage to the phone and sent it back to me in a worse state. I've already sank £100 on a replacement part, so I'm not to keen on paying for repairs either (I could put the money towards a new phone instead).
The help is much appreciated! Thanks!

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