Related
Hello, I saw that someone else asked a similiar question before but they did not word the question correctly and got little help.
On my HTC EVO logic board, there's three tan "ports" (I don't know what they are actually called). One for the front camera, one for the LCD, and one for the front panel.
While walking home one day, my screen started showing a dark spot. The spot got bigger, and I decided to take apart my phone (something I'd done before a few times) and try to clean things up. I put everything back together, and the LCD would not come on. After numerous tries, I finally decided the LCD was damaged. As I went back in the phone, I saw that regardless of whether you flipped the black tab on top of the LCD tan 'port' back or forward, the cable was capable of being pulled out, e.g., it was not secure. At the time, I thought nothing of it, but now that my new LCD should be here, I'm worried.
Is my LCD not working because the 'port' is broken? If so, what can I do to repair it? (I heard it is very difficult). I'm worried, because I paid a lot to buy a new LCD and will be unable to send it back.
http://guide-images.ifixit.net/igi/ZYHLZwIIVhjilEpT.large
Also, my front panel cable never sits 'perfectly'..that is, I have to connect everything else first, and then try my best with the front panel. The tape does not stay down flat completely.
These sorts of connectors can be fixed,but there is quite a bit of skill involved. Upload a picture and I can tell you better how hard it is. What I can tell you is that you probably cant do it yourself. I base this on the fact that those who have the necesesary skils will instantly know its going to be a pain. In fact,its easy to screw it up ,and sometimes you do,even if you DO know what your doing. Since I dont want to take my phone apart,Ill need to see a picture of it before I can tell you anything more. One thing to keep in mind is that sometimes the ribbon cable CAN be pulled out anyway,and is making good contact and there is some other problem. If you have not installed the new LCD,install it and see if it all works. If so,your good to go. As a general rule,the connectors are delicate and its not a good idea to pull them out. In fact,dont disconnect them if you dont have to. They have a limited number of connect/disconects they can take and they are very easy to break.
pflatlyne said:
These sorts of connectors can be fixed,but there is quite a bit of skill involved. Upload a picture and I can tell you better how hard it is. What I can tell you is that you probably cant do it yourself. I base this on the fact that those who have the necesesary skils will instantly know its going to be a pain. In fact,its easy to screw it up ,and sometimes you do,even if you DO know what your doing. Since I dont want to take my phone apart,Ill need to see a picture of it before I can tell you anything more. One thing to keep in mind is that sometimes the ribbon cable CAN be pulled out anyway,and is making good contact and there is some other problem. If you have not installed the new LCD,install it and see if it all works. If so,your good to go. As a general rule,the connectors are delicate and its not a good idea to pull them out. In fact,dont disconnect them if you dont have to. They have a limited number of connect/disconects they can take and they are very easy to break.
Click to expand...
Click to collapse
Well, I don't really have a means of taking a quality photo except with my computer webcam but I'll try in a second. I can't really show you because there isn't much to see. The little black bar that flips up and down to 'lock' the port is ineffective; the cable can be pulled out regardless. I know I can't fix the port/connector by myself, so I'm hoping that's not the issue. You have given me a lot of hope though. The new LCD should be here by Wednesday at the latest, so I'll be able to test it then.
Does my front panel affect the LCD? Since I dropped my phone on the corner, even with a new panel it does not sit 'perfectly'. I don't think they're related though.
BluRngerGurl said:
Well, I don't really have a means of taking a quality photo except with my computer webcam but I'll try in a second. I can't really show you because there isn't much to see. The little black bar that flips up and down to 'lock' the port is ineffective; the cable can be pulled out regardless. I know I can't fix the port/connector by myself, so I'm hoping that's not the issue. You have given me a lot of hope though. The new LCD should be here by Wednesday at the latest, so I'll be able to test it then.
Does my front panel affect the LCD? Since I dropped my phone on the corner, even with a new panel it does not sit 'perfectly'. I don't think they're related though.
Click to expand...
Click to collapse
I dont think so. I bet your ok. Just dont keep playing with the connector. I know,Ive done it. I sit there messing with it,wondering,is it broken? Is it good? Then the little black peice comes off in your hand or the plastic breaks and "well its sure broken now!" Remember,that little latch does not so much hold the cable in place as hold the cable against the contacts,if its making contact,its good to go.
Hi, all. The new LCD I receieved did not work. There are very minor differences in the two; such as some type of blue gunk on the silver part of the LCD, the connector is more of a dark orange on the new one while the original is a yellow-orange, etc. Also, again, the connector does not 100% fit in the slot. It goes in, but a small corner sticks out a bit and you have to either hold it in or clip it in [which I can't, because the black clip is broken].
The only possibilities I can think of are
A] Because the little black thing is damaged, no LCD will work in it. Therefore I need a new phone.
B] The LCD does not work.
C] The LCD is the wrong size.
At this point I want to just give up and get a new phone, which is very heart-wrenching because I love my EVO and I doubt I can afford the only other phone I like, the Samsung Galaxy S II Epic Touch 4G.
Is anyone able to identify what connector is used on this phone for the LCD? I broke a pin on the connector while trying to repair a cracked screen. I would like to buy it and re-solder it on to fix the phone.
Can someone link the correct connector maybe from digikey.com?
Broken latch
I too have a problem with the connector... the plastic part that connects the ribbon cable to the main board has broken. There must be a place to buy these tiny plastic latches... does anyone know? Your assistance will be greatly appreciated!
Mac-
Hi all. In need of a bit of advice here. Hope this is in the right forum.
My beloved DHD has suffered from one too many falls. Despite being protected in an Otterbox Commuter case, he now lies on his deathbed. Even though I was considering an upgrade, I'm thinking I might want to stretch out his life for as long as possible instead. So I've come here to ask for repair advice.
- The phone seems structurally sound from the outside, no damage besides minor aesthetic scratches from before the phone was protected by the Otterbox.
- It appears to boot. Makes the vibration noise etc. Heck the alarm even went off the other morning, at the set time of 0630.
- Screen does not function at all. Lifeless. But not broken in any way externally. Because of this, had to pull the battery to shut the alarm off.
- When plugged in to charge, charging light indicator does not illuminate.
Any ideas?
Sent from my nipple running windows 95 NT.
Cheers, although I'm gonna try a different approach for now.
Any ideas? Can anyone point me in the right direction of some advice?
Sounds like 2 things. Broken lcd and a broken charging port. It wouldn't be worth repairing. You could buy one second hand on ebay for aboot £120.
Sent from my nipple running windows 95 NT.
Thanks for that. Considering trying to sell it broken, for parts. Only thing that concerns me is any sensitive data that may be readily accessed by someone who knows how to get to it.
Is there a way to wipe it?
You could use another dhd with the same firmware and copy the key/button presses and reset it in bootloader mode.
Sent from my laser emitting mammary glands.
Could also be that the connector for the screen has been dislodged due to being drop to many times you mite try opening it up and see if it is that.
lincolnep said:
Could also be that the connector for the screen has been dislodged due to being drop to many times you mite try opening it up and see if it is that.
Click to expand...
Click to collapse
Hi, thanks for the response. So I assume you're referring to this part here?
http://www.parts4repair.com/htc-desire-hd-lcd-screen-fpc-connector/
Seen in this disassembly video from the 3:05 minute mark?
http://www.youtube.com/watch?v=JfatoeWbMRk
bump...
I have a problem similar to yours. But in my case, I'd turned the phone off to go to the cinema and the LCD and touch never turned on again.
In order to erase your data, did you try overwriting a stock rom? (In case it's just the charging LED that is broken)
That sucks! Self detonating phone. Does yours still vibrate and 'turn on'?
Haven't actually managed to clear the data. I'm ordering this part here (http://www.parts4repair.com/htc-desire-hd-lcd-screen-fpc-connector/) and I'm going to attempt to pull it apart and fix it.
If I can get it to work again I'll sell the One V I'm using and go back to the old faithful!
Well this saves me from starting a new thread haha
Anyway i am having the exact same problem as you have.
My dad brought home a Desire HD from work wich was not working so i am trying to fix it.
The phone boots, it vibrates ones and after a minute it makes the boot sound.
But nothing responses and the lights wont turn on.
Also no charging light..
Also it does not charge but usb does connect.
Could this be the FPC connector or the screen?
Hmmm...interesting, exact same issue as mine.
Well, I've ordered the FPC connector replacement part I linked above...going to attempt to play around with it when it arrives and see if I can breathe new life into the phone. So I can tell you how that goes...
Although:
1. Would the charging light and screen problem be connected? Is this feasible? Or does it suggest something else is likely shot?
2. I believe the FPC connector requires a solder to replace. This could be a bit ambitious on my part to attempt to repair...any ideas on what sort of a solder would be suitable?
Sent from my HTC One V using xda premium
suitup said:
Hmmm...interesting, exact same issue as mine.
Well, I've ordered the FPC connector replacement part I linked above...going to attempt to play around with it when it arrives and see if I can breathe new life into the phone. So I can tell you how that goes...
Although:
1. Would the charging light and screen problem be connected? Is this feasible? Or does it suggest something else is likely shot?
2. I believe the FPC connector requires a solder to replace. This could be a bit ambitious on my part to attempt to repair...any ideas on what sort of a solder would be suitable?
Sent from my HTC One V using xda premium
Click to expand...
Click to collapse
no clean flux core solder would work best, preferably something very thin (about .015"). A small bottle of noclean flux would also help and you probably will need lead free solder as that is likely what they used on the board to begin with, and lead and leadfree dont typically mix as well.
Thanks for the quick reply...
Something like this?
http://www.oritech.com.au/productDetail.aspx?productID=23244
What sort of iron would be suited? Would any of these suit?
http://www.oritech.com.au/categories.aspx?categoryID=321
Would you say it'd be a difficult process? I've soldered before, but a that was a while ago in high school...
Also the cost of all this equipment will far outweigh the cost of the $3 FPC connector spare!
suitup said:
Thanks for the quick reply...
Something like this?
http://www.oritech.com.au/productDetail.aspx?productID=23244
What sort of iron would be suited? Would any of these suit?
http://www.oritech.com.au/categories.aspx?categoryID=321
Would you say it'd be a difficult process? I've soldered before, but a that was a while ago in high school...
Also the cost of all this equipment will far outweigh the cost of the $3 FPC connector spare!
Click to expand...
Click to collapse
yes, those should both work fine. ya it is costly for equipment. i have a edsyn iron i use at home and solder i get from work. i would say it can be tricky, i havent seen the connector but im sure its similar to other inline ribbon connectors. remember, short burst soldering, heating it for too long will take the pad off the pcb, and repairing THAT can become very difficult.
suitup said:
Hmmm...interesting, exact same issue as mine.
Well, I've ordered the FPC connector replacement part I linked above...going to attempt to play around with it when it arrives and see if I can breathe new life into the phone. So I can tell you how that goes...
Although:
1. Would the charging light and screen problem be connected? Is this feasible? Or does it suggest something else is likely shot?
2. I believe the FPC connector requires a solder to replace. This could be a bit ambitious on my part to attempt to repair...any ideas on what sort of a solder would be suitable?
Sent from my HTC One V using xda premium
Click to expand...
Click to collapse
Thanks. We have a spare DHD with broken glass here wich my sister is using unter her SGS is back from repair. Will swap the motherboard when her phone is back.
Sent from my HTC Vision using xda premium
Hi everyone,
I am new (noob) user of XDA Deceloppers. If this thread is posted in the wrong category, I'm sorry but I did not know which one to chose D:.
To start, I have a Galaxy Nexus GSM. It is rooted. Stock ROM and stock Kernel.
It is running an OTA 4.1.1 Jelly Bean.
I recently installed a Skinomi wet applicated screen protector on my Gnex. I watched a lot of videos on how to apply wet applicated screen protectors. I am very prudent with applying those stuff. I followed all Skinomi's instructions. I know I did everything right. After applying it, I waited two full days (48 hours) before booting my Gnex back up.
Now, the problem. My volume button is getting weird. Pressing down is flawless, but when I press up, it works only 1/2. The rest works fine. I dont know why it gets like that.
The second problem. I have all the accessories that came with the phone, but not the receipt. I bought it used...
I emailed Skinomi and the seller for help, but no reply up to date.
I love this phone but... this problem is pretty annoying.
Please help me!
Water and phones are not good together.
Sent from my Xoom using xda premium
Winesnob said:
Water and phones are not good together.
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
Yeah, I knew that, but after reading a lot of success from others, I wanted to try. This would be my lastvl time with wet screen protectors. Too much to worry for it, and its expensive. Any solution guys?
tonytober said:
Yeah, I knew that, but after reading a lot of success from others, I wanted to try. This would be my lastvl time with wet screen protectors. Too much to worry for it, and its expensive. Any solution guys?
Click to expand...
Click to collapse
See if you can take the battery out and leave the phone in a ziplock bag packed with rice for a few days.
Or you can try taking the battery out and using a hair dryer to blow hot air into the volume rocker.
Was this a full body protection kit or just the screen? A ton of people have had issues with the power button and volume rocker after applying a wet screen protector, and I have no idea why these companies don't tell you to cover both with a piece of tape or something before hand, as water getting into the crevices of the device is never a good thing.
MMcCraryNJ said:
See if you can take the battery out and leave the phone in a ziplock bag packed with rice for a few days.
Or you can try taking the battery out and using a hair dryer to blow hot air into the volume rocker.
Was this a full body protection kit or just the screen? A ton of people have had issues with the power button and volume rocker after applying a wet screen protector, and I have no idea why these companies don't tell you to cover both with a piece of tape or something before hand, as water getting into the crevices of the device is never a good thing.
Click to expand...
Click to collapse
Thanks for a fast response
I will try to put my phone in rice, because hairdryer might be too strong.
Its a screen only protector.
They never told me to tape the buttons! What a good idea.
What would be the worst solution if everything fails?
Is replacing the volume flex hard?
Im so scared!!! I love my phone so much. :'( please help me!!!!
Same thing has been happening with my phone for 6 or so months now. Spilled a small amount of water on my phone. Wiped it off and everything works fine but the volume up button is very finicky, not a huge problem just have to tap up 2 or 3 times sometimes to get the volume on.
Sent from my Galaxy Nexus using Tapatalk 2
Still using your phone like that?
I really respect you as you can use your phone like that. I just can't stand it. Help!
My recent move
I just bought a new flex volume cable off ebay (cannot link yet, don't have the permission). The seller is 123phone.
I am pretty sure that the cable is damaged, and 5$ is worth a try. Does anyone here tried to solder it? It will be my first time soldering a flex cable, but I have already dont some soldering before. Any tips for the replacement of the flex cable?
Thanks for helping guys. I'm really stressed :S
tonytober, I have the exact same issue, only the volume up rocker and it intermittently works.
Did you try to install the flex volume cable, did it work?
tonytober said:
I just bought a new flex volume cable off ebay (cannot link yet, don't have the permission). The seller is 123phone.
I am pretty sure that the cable is damaged, and 5$ is worth a try. Does anyone here tried to solder it? It will be my first time soldering a flex cable, but I have already dont some soldering before. Any tips for the replacement of the flex cable?
Thanks for helping guys. I'm really stressed :S
Click to expand...
Click to collapse
Winesnob said:
Water and phones are not good together.
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
Well my phone got wet and was laying in water for a day or so ( Just a little pool) And i just waited for a week or something and then it started and everything worked so water + gnex = Nothing bad, but nothing good
Please read forum rules before posting
Questions go in Q&A
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator
baruf12 said:
tonytober, I have the exact same issue, only the volume up rocker and it intermittently works.
Did you try to install the flex volume cable, did it work?
Click to expand...
Click to collapse
Sorry for a late reply. Yes I replaced the flex cable and now it works fine.
I will never buy a wet screen protector anymore. Worriness for nothing!
Replacing the flex is not that hard and can be found on eBay for under 8$ so it was pretty fine for me.
tonytober said:
Sorry for a late reply. Yes I replaced the flex cable and now it works fine.
I will never buy a wet screen protector anymore. Worriness for nothing!
Replacing the flex is not that hard and can be found on eBay for under 8$ so it was pretty fine for me.
Click to expand...
Click to collapse
Hi Tonytober,
I also need to replace mine but have never soldered before. Can you advise how you did it and what tools i would need? is it just the 3 soldering points? i saw the volume flex cable is cheap enough on ebay, its the soldering im worried about!
Thanks
DC
dcsworld said:
Hi Tonytober,
I also need to replace mine but have never soldered before. Can you advise how you did it and what tools i would need? is it just the 3 soldering points? i saw the volume flex cable is cheap enough on ebay, its the soldering im worried about!
Thanks
DC
Click to expand...
Click to collapse
Soldering is not hard unless you shake a lot. Lol!
For soldering, you need a soldering iron, some lead and your brain (actually, just be careful not to burn yourself).
Sold soldering promoter could help (it's a paste that you could put on the phone to help the lead stick on the phone)
Watch out to not let the iron on the phone too long (stop soldering every 10 seconds lets suppose, rest 10 sec, solder 10 sec) as you don't want to damage your logic board to repair an 8$ ribbon! :laugh:
So yeah.
Open the soldering iron, let it heat up (2 minutes to be safe and chill)
-Heat up the spots where you have to solder on the Gnex's board (3-5 seconds)
-Apply some paste with a Q-tip or a toothpick on the heated spot on the Gnex's board
-Here's a tricky part: use BOTH hands for this (only "hard" part which is not hard, just be careful to not use too much lead):
One hand holds the soldering iron and apply heat on Gnex's board, while the soldering iron's tip is STILL on the Gnex's board, with the OTHER hand, apply lead DIRECTLY on the spot where you need to bond the ribbon-board with the lead. Just put enough that it sticks.
**Tip: When the liquid lead between the ribbon+board (where you soldered) hides the space between them (like glueing paper), blow on the liquid lead. It will make it bond one shot and Voila, it is done.
Just do it nice and slow if it is your first time. The only dangers:
-Don't burn yourself, don't kill yourself. I'm not responsible for any injuries, or Death. ...
-Don't burn the Logic Board (like I told you, 10 seconds solder, 10 seconds cooldown...)
-Don't oversolder (If you boot up with oversolder you might bond two connections and short your phone's Logic board and... your phone will RIP.
In case if you oversolder, don't panic, lead is like a magnet to the iron. Just take your soldering iron and heat up the lead. The iron will suck it up.
After that, take a damp cloth and wipe the soldering iron's tip. Don't burn yourself!!!
When everything's done, before you mount your phone, test it. Don't waste your time screwing and unscrewing the phone
If the phone works, clean the soldering iron's tip with a damp cloth when it is still warm-hot.
If the phone works, ENJOY!!!!!!!!
Hope it helps. Keep me updated with your phone.
Nexus lover, Tony
tonytober said:
Soldering is not hard unless you shake a lot. Lol!
For soldering, you need a soldering iron, some lead and your brain (actually, just be careful not to burn yourself).
Sold soldering promoter could help (it's a paste that you could put on the phone to help the lead stick on the phone)
Watch out to not let the iron on the phone too long (stop soldering every 10 seconds lets suppose, rest 10 sec, solder 10 sec) as you don't want to damage your logic board to repair an 8$ ribbon! :laugh:
So yeah.
Open the soldering iron, let it heat up (2 minutes to be safe and chill)
-Heat up the spots where you have to solder on the Gnex's board (3-5 seconds)
-Apply some paste with a Q-tip or a toothpick on the heated spot on the Gnex's board
-Here's a tricky part: use BOTH hands for this (only "hard" part which is not hard, just be careful to not use too much lead):
One hand holds the soldering iron and apply heat on Gnex's board, while the soldering iron's tip is STILL on the Gnex's board, with the OTHER hand, apply lead DIRECTLY on the spot where you need to bond the ribbon-board with the lead. Just put enough that it sticks.
**Tip: When the liquid lead between the ribbon+board (where you soldered) hides the space between them (like glueing paper), blow on the liquid lead. It will make it bond one shot and Voila, it is done.
Just do it nice and slow if it is your first time. The only dangers:
-Don't burn yourself, don't kill yourself. I'm not responsible for any injuries, or Death. ...
-Don't burn the Logic Board (like I told you, 10 seconds solder, 10 seconds cooldown...)
-Don't oversolder (If you boot up with oversolder you might bond two connections and short your phone's Logic board and... your phone will RIP.
In case if you oversolder, don't panic, lead is like a magnet to the iron. Just take your soldering iron and heat up the lead. The iron will suck it up.
After that, take a damp cloth and wipe the soldering iron's tip. Don't burn yourself!!!
When everything's done, before you mount your phone, test it. Don't waste your time screwing and unscrewing the phone
If the phone works, clean the soldering iron's tip with a damp cloth when it is still warm-hot.
If the phone works, ENJOY!!!!!!!!
Hope it helps. Keep me updated with your phone.
Nexus lover, Tony
Click to expand...
Click to collapse
Thanks a lot for the advice. It gives me more confidence to try it. Really annoyed that i didnt notice the volume cable was soldered onto the main board, i was following the wrong youtube video which was disassembling a different nexus variation
I'm glad you mentioned that the lead is applied to the soldering point, i always thought the a bit of lead was first melted onto the iron and then transferred onto the soldering point.
I'll give it a shot once i have all the parts and update the thread on the results
Thanks
DC
dcsworld said:
Thanks a lot for the advice. It gives me more confidence to try it. Really annoyed that i didnt notice the volume cable was soldered onto the main board, i was following the wrong youtube video which was disassembling a different nexus variation
I'm glad you mentioned that the lead is applied to the soldering point, i always thought the a bit of lead was first melted onto the iron and then transferred onto the soldering point.
I'll give it a shot once i have all the parts and update the thread on the results
Thanks
DC
Click to expand...
Click to collapse
No problem at all. The Gnex should rather be fixed than be thrown away, auch a good phone
Tell me when you did it! Hope you get it fixed soon. If something goes wrong or you have any questions, ask!!! Xda'a here for that.
Tony
I finally got round to attempting this and it ended up a failure
First of all i noticed i only had 2 soldering points (metal bits) on the main pcb board (the middle one was missing) and the new volume cable had 3, so the middle one must have been pulled off with the old volume cable, Anyway, i decided to go ahead and try soldering the 2 outer connections.
1st attempt, i managed to make the 2 connections, although it looked very messy. Tested them and the volume down button was working! unfortunately the volume up button was not. So i heated the iron up again and attempted to apply more solder to the connections hoping this would improve the connection. Result: both buttons not working! the whole area is black now on both the main board and the volume cable, so i must have damaged all the soldering points and broken the working connection in the process. i found the solder was sticking to the iron forming blobs of hot solder rather than where i wanted the connection to be made. i must have been doing something wrong
Hmm i think im just going to live without the buttons now and rely on the volume controls within the rom until the next nexus is out. Might even volume cable and attempt this again at that point.
Thanks a lot for your help anyway, it was useful experience!
I have a huge problem, basically I was sick and tired of my black housing for the phone, so I ordered the white one from ebay. I was so happy it came that I forgot to shut down the phone, well during half way of the work, while I was trying to pry it open I remembered and turned it on and it worked I opened it a bit more open and it suddenly went black and since then everything is working except the LCD.
I have no idea whats the problem is the LCD broke or what?
Also when it shut down and me trying to reconnect the LCD flat cable to see if thats the problem I was nervous and did that which you see in the picture. Now my issue is what if I buy a new screen connect it and it doesn't work because the FPC connector?
Silthrax said:
I have a huge problem, basically I was sick and tired of my black housing for the phone, so I ordered the white one from ebay. I was so happy it came that I forgot to shut down the phone, well during half way of the work, while I was trying to pry it open I remembered and turned it on and it worked I opened it a bit more open and it suddenly went black and since then everything is working except the LCD.
I have no idea whats the problem is the LCD broke or what?
Also when it shut down and me trying to reconnect the LCD flat cable to see if thats the problem I was nervous and did that which you see in the picture. Now my issue is what if I buy a new screen connect it and it doesn't work because the FPC connector?
Click to expand...
Click to collapse
The connection pins themselves do not look damaged, on the plastic shroud. The socket should work fine.
It's a little hard to make out fine detail in the pic...take a magnifying glass to it and check for cracks or splits in the pins.
Tigerlight said:
The connection pins themselves do not look damaged, on the plastic shroud. The socket should work fine.
Click to expand...
Click to collapse
Hmm it seems like it goes one small one then longer one, its hard to see from he picture but I think two of the longer ones are missing. And what should be the problem with the LCD because that happened before I damaged the socket.
Between thank you for the fast reply.
Silthrax said:
Hmm it seems like it goes one small one then longer one, its hard to see from he picture but I think two of the longer ones are missing. And what should be the problem with the LCD because that happened before I damaged the socket.
Between thank you for the fast reply.
Click to expand...
Click to collapse
Well I don't see any missing pins, but you'll have a better view.
As for you LCD...no idea. Generally it's a good idea to turn everything off before you open electrical equipment. You could have caused a short in the process of opening it live.
Tigerlight said:
Well I don't see any missing pins, but you'll have a better view.
As for you LCD...no idea. Generally it's a good idea to turn everything off before you open electrical equipment. You could have caused a short in the process of opening it live.
Click to expand...
Click to collapse
Would that be on the motherboard or the LCD, basically should I bother repairing it or just sell it for spare parts thats my issue right now.
Silthrax said:
Would that be on the motherboard or the LCD, basically should I bother repairing it or just sell it for spare parts thats my issue right now.
Click to expand...
Click to collapse
If you try to power it on does the vibrate activate...basically does it do everything you'd expect EXCEPT the screen doesn't work or does it do nothing at all?
Tigerlight said:
If you try to power it on does the vibrate activate...basically does it do everything you'd expect EXCEPT the screen doesn't work or does it do nothing at all?
Click to expand...
Click to collapse
Like I said earlier everything works, I can still receive SMS, phone calls (I can answer them since the digitizer works), e-mails, Facebook msgs, vibrations, sound, microphone... Everything works except the LCD.
Silthrax said:
Like I said earlier everything works, I can still receive SMS, phone calls (I can answer them since the digitizer works), e-mails, Facebook msgs, vibrations, sound, microphone... Everything works except the LCD.
Click to expand...
Click to collapse
You might try replacing the LCD and hope you haven't damaged the connector. If you have, a self-repair is unlikely given its size and that of the pins.
Or you dump it and buy a new phone.
Either way it's gonna cost you money. The first is cheaper but may not work.
I think that's your only options.
Yeah I knew from the start it was gonna cost me money, but I wanted the cheapest way out
Thanks a lot for the help I think I am gonna try to fix it. Get some experience while doing it too
Silthrax said:
Yeah I knew from the start it was gonna cost me money, but I wanted the cheapest way out
Thanks a lot for the help I think I am gonna try to fix it. Get some experience while doing it too
Click to expand...
Click to collapse
Hey did you ever figure out the connector issue? Same problem
Hi
Sorry for my english, I'm hungarian, this is the best I can do.
So I bought a cheap (but not too cheap) SM-P905, but I can't get the screen to work properly.
The touch layer, the spen, the backlight works well, I managed to mirror the screen on my pc and everything else seems to be okay.
I got off the back cover, I tried to unplug and reattach every flex cable, even the battery. I tried to look everything under magnifying glass to see what could be the problem.
The lcd flex connector looks like this under my lens.
(Upload it in the next post, not working from the android app)
I tried to clean it with a needle, but it still looks like it is corroded or melted.
Is it possible that replacing this connector will get the screen back to normal? (I found flex connector replacement on the internet)
Or is it possible to repair it with some jumpers or something like this?
Is it melted because of some shorted circuit somewhere else, or because of a bad micro capacitor?
How and where can I locate and resolve this problem (s)? Maybe is it still the lcd that is simply dead and I can't bring it back to life?
I dont want to buy a screen, and a motherboard (neither only one of them )
Thank you for your help!
Okay the forum doesnt let me to insert links or photos, because I'm new here -.-
/s/53oab9sykbihn32/20151021_175009.jpg?dl=0 write dropbox dot com in front of link
https://www.dropbox.com/s/53oab9sykbihn32/20151021_175009.jpg?dl=0
In my opinion it died!!
I hoped for better opinions
I wanted to know how this thing can die?
It has to be caused by something.
Bad resistor/capacitor? Is it on the motherboard or on the lcd's circuitboard?? Or is it only the corroded flex connector??
I dont want to throw the whole tablet in the trash. Everything else is just operating fine.
If nobody can answer this, where should I write, where people can help with these very small components / resoldering / measuring what gone wrong here?
Alan-B said:
In my opinion it died!!
Click to expand...
Click to collapse
So today I measured the pins in worst condition. There are 2 pins that I tought can cause the problem and looks corroded. (Number 5 and 9 from the right) Both of them !are not used!. (There is a total of 3 pins that are not used on the connector/cable)
They are not lead through the flex cable, they have no function here.
So the problem comes from somewhere else, but I still don't know why they look like this.
Maybe I will try to seperate the screen from the body and look at it closer and its connectors/smaller circuit boards.
Sent from my SM-N9005 using XDA Free mobile app
Hmm, that pic does not make me think its a corrosion problem. At best, it can lead to a finicky connection, but there seems to be enough there for proper electrical contact. If this were a headphone jack, for example, I would say apply pressure near the cable to see if the headset works properly, and if it does, then I know its a cable problem. No idea if you can try to apply pressure to the cable and see if the LCD turns on.
If the screen mirrors on the TV successfully, then there are a bunch of Samsung Service Codes you can use to test the LCD. Unfortunately I do not know them for this model, but google should get you the service menu very easily. There is definitely a test in there for the LCD that should give you a better idea what to expect.
If the cable is pretty cheap, I would also just pick up one and try replacing. Nothing to lose! AND if you have access to another identical device, you can try to stick this LCD on that device to see if its the LCD thats the problem or the motherboard.
Lastly, I would want to know if the glass on that LCD has ever been replaced. If they did a glass only replacement, its possible they overheated the LCD ... OR used too much LOCA glue that shorted the connectors.
Many possibilities, so I wouldn't call it a day yet. First, look for the service menu, thats the best place to begin.
I will try the service codes.
Unfortunately I don't have more devices. The easiest way would be to test the identical parts on a working one, but I don't know anyone who would risk his/her tablet for this
The other thing I can do is to get another lcd-glass unit from ebay or from ifixit and try it. If the problem was the lcd, it should work, I'm happy, but if its black, I will have (maybe) 2 working lcd units for sale. Or I have to get a new motherboard (sounds expansive).
I don't think that they replaced the glass on this device, it looks very used and scratchy, so it was working before.
Thank you for taking your time for me and answering my dumb questions!!
Sent from my SM-N9005 using XDA Free mobile app
There are more good news than bad, so I'm very happy.
So 1-2 days ago I started to get off the screen to see if I can seperate the LCD from the receiver. Turned out its not that hard. The only hard thing is to get it off the body in one piece. Lots of heating with a hair drier, and a LOT OF PATIENCE. If you can get it off in one piece you are on your way.
Seperating the glass from the LCD is very easy, did it in 10 minutes, I don't think it needs heating...
So I did it, then I saw some water damage (white things) on the back side of the LCD. There is a small board here too, so I cleaned the white thing off with some alcohol.
Then I put the lcd back and voilá, Its WORKING!!!
The only problem is that I damaged the touch screen glass, so I need to order a new one, but its under 20$ so no problem.
Thank you all for your help, I hope that I finished here
Sent from my SM-N9005 using XDA Free mobile app
Good to know! Thank you for the update
Other solution is remove battery five minute and reconnect battery