[Q] No Screen after Digitiser replacement. LCD replacement did not resolve. Mobo? - XPERIA X10 Q&A, Help & Troubleshooting

I recently replaced a cracked digitiser in my X10. After replacement, the LCD no longer displays an image (but it lights up).
I thought maybe the LCD ribbon was damaged as a result of the repair, so I got a new one and replaced the LCD to no avail.
I also found the vibration motor had came off, and I soldered that back on (the motor is working again), but I'm thinking that maybe it ripped some of the board off with it, as the bottom of the motor as some green board on it, and it's slot on the mobo has some brown board showing in that area. This could just be a convenient seating for the motor, but I'm not sure, as I don't have another to test with.
The phone boots, and it makes a sound when I hit the volume keys, and it vibrates when I unlock it (even though I cannot see anything).
Does anyone have any further experience with the X10 that could help me diagnose my issue?
Thanks

Bump?

look for broken circuit traces and check the display connecton the board it may have pinns ripped out of place pictures would also help

I desoldered the motor again so that I could show you.
and re-soldered it (The motor still works, btw).
I also cleaned around the board with isopropyl alcohol.
As far as I can see, there is no further damage to the board, and the screen is new, so it shouldn't be an issue.
The digitiser, and the sound works, (I can hear sounds with the volume keys, and I can feel the vibration of unlocking).
I removed and re-inserted the pins on the removable connector on the LCD screen, with no avail. They seem ok.
I'm outta ideas. Anyone?
(Images attached)

Cable? Whats wrong with the old one
Sent from my X10i using XDA

[email protected]_me said:
Cable? Whats wrong with the old one
Sent from my X10i using XDA
Click to expand...
Click to collapse
What cable are you referring to?
This?

What happens when you press in the connector while booting up you ha be exposed copper fix that one too will lead to corrosion
Sent from my X10i using XDA

[email protected]_me said:
What happens when you press in the connector while booting up you ha be exposed copper fix that one too will lead to corrosion
Sent from my X10i using XDA
Click to expand...
Click to collapse
Which cable? I tried pressing down on all 4 of the connectors (one at the top next to the USB, and the three on the sides on the bottom next to where the battery sits.
I also tried pressing on the motor. Nothing.
Anything else?

Yup remember a PSP screen acting erratically cuz it's cable is damaged
Sent from my X10i using XDA

Could you desolder the board stuck to the motor see if there are traces leading to the LCD connector if it is then repair is least likely since there are no traces left below or the whole layer holding the traces are ripped off
Sent from my X10i using XDA

Do you have another board or another flex cable?
Sent from my X10i using XDA

I don't think it's a good idea to de-solder the board attached to the motor, as there is no fixing fixing it that part anyway, and it will just risk further damage.
I have 2 LCD screens. This one is new. Both don't work. I don't think the LCD screen itself is the issue, which makes me believe the problem is the mobo.
Thanks for your help so far. If you or anyone else has any more ideas, then I will listen, otherwise, I'm gonna try cook this board as a last resort... got nothing to lose, really and in a rare-case, maybe it will help fix some loose solder joints I can't get to

Are you using the old cables
Sent from my X10i using XDA

The trace underneath the motor seems to damaged try inspecting that first before throwing it in the oven
Sent from my X10i using XDA

Are those caps/resistor beside the motor on the ripped of board?
Sent from my X10i using XDA

[email protected]_me said:
Do you have another board or another flex cable?
Click to expand...
Click to collapse
[email protected]_me said:
Are you using the old cables
Click to expand...
Click to collapse
I don't have another mobo, but the cables on the LCD are new. The other cables are old, but seem to be working. Everything but the LCD works.
[email protected]_me said:
The trace underneath the motor seems to damaged try inspecting that first before throwing it in the oven
Click to expand...
Click to collapse
I'll have to desolder the motor again. I'll have a look soon.
[email protected]_me said:
Are those caps/resistor beside the motor on the ripped of board?
Click to expand...
Click to collapse
I cannot see any components on the ripped-off piece of the board.
Thanks for all your help so far

Related

Titan LCD lights up but no Windows/text/pictures/

My Titan slipped, the screen broke. The screen broke but the phone was functioning.
I tried and replaced the digitizer.
Now, when I power up, nothing comes on the screen (no windows etc).
The phone boots fine, LCD is lit, I can hear the sounds during boot, phone is charging etc etc.
Anyone know what might be the issue ? Only thing that went wrong during repair was the volume control cable broke. I thought I cannot use the volume control but can that me the cause ?
Any help is appreciated.
Thanks
Not sure what is wrong with your phone, but wondering where you got a new digitizer?
Woodway said:
Not sure what is wrong with your phone, but wondering where you got a new digitizer?
Click to expand...
Click to collapse
From eBay (China Shipped) for $35. Can get from US sellers for about $48.
Search "320885889472" on ebay
If the screen doesn't turn on at all check to see the bottom ribbon cable is not damaged and inserted correctly.
If it turns on but the touch doesn't register correctly check that the top ribbon cable is inserted right, and also that "ALL" of the pins in the connector are in place!!
Sent from my PI39100 using XDA Windows Phone 7 App
Thanks for the reply.
The screen turns on a but its all white light.
I don't see anything else like windows loading, logos etc. I checked both ribbons, it can hears the sounds while booting, basically cannot see anything related to software.
IronMan1289 said:
If the screen doesn't turn on at all check to see the bottom ribbon cable is not damaged and inserted correctly.
If it turns on but the touch doesn't register correctly check that the top ribbon cable is inserted right, and also that "ALL" of the pins in the connector are in place!!
Sent from my PI39100 using XDA Windows Phone 7 App
Click to expand...
Click to collapse
Did you also replace the LCD?
Have you tried a hard reset if it's a software issue?
Also with the original digitizer on did it boot up?
Sent from my PI39100 using XDA Windows Phone 7 App
IronMan1289 said:
Did you also replace the LCD?
Have you tried a hard reset if it's a software issue?
Also with the original digitizer on did it boot up?
Sent from my PI39100 using XDA Windows Phone 7 App
Click to expand...
Click to collapse
As I wrote the volume ribbon is broken and therefore, I can't hard reset it. I think that is the issue.
So if you are assuming it is in fact a software issue try connecting to Zune and restoring!
Sent from my PI39100 using XDA Windows Phone 7 App

[Q] Damaged display ribbon connecter! Help needed

I opened my tablet to try and fix the signal strength on my wifi and gps. everything was going great until my screen turned a little and bam... the ribbon cable came out of the connector. When I went to pry the lock up it broke(very cheap connector). I tried to insert the ribbon back in but I noticed when some of the black plasctic that broke away there were wires that seemed to run through it. Anyway long story short. Can I remove the connector and wire the ribbon to the board? Is there anyway to fix it other than ordering a new pcb board? Any ideas would be appreciated. It is working now but there are spots on the screen that do not accept input or touch. I have used electrical tape to tape it in place for now. Thanks inn advance!
Sorry bro I think your s.o.l. those ribbon s are not really repairable and the main display one j think has 24 connectors or so. Soldering those is next to impossible. Same with the touch panel ones.
Sent from my SGH-T989 using XDA

Replacing I717 USB Charging Port and Flex Cable Ribbon

Does anyone have any experience with removing a damaged charging port/flex cable? I made a thread about a week ago saying that mine was messed up and one of the wire strip on the charging slot was broken, but and didn't allow it to connect to my computer for file transfer. I talked to ATT and they said the store couldn't do anything and that I would need to call in. I don't want to take the risk of a huge charge, and found a single order part here www.etradesupply.com/oem-samsung-galaxy-note-sgh-i717-charging-port-flex-cable-ribbon.html
It is cheap, and I have e removed the back of my Note before, and removed most of this piece except for the ribbon, and which I have no idea how to. Are there any resources out there to help me with this? I don't want to mess up a new part trying to install this one.
(PS how do I start a new thread on the desktop site? I couldn't find anywhere to do it and SwiftKey isn't faster than using a real keyboard on my PC lol. I am obviously new)
Sent from my SAMSUNG-SGH-I717 using xda premium
Youtube is your friend. Watch the video and see the steps it takes. If you feel it's too much then try searching on your local Craigslist for a shop that may be able to fix it.
http://youtu.be/pD9R-YUT69Q
MrEous said:
Youtube is your friend. Watch the video and see the steps it takes. If you feel it's too much then try searching on your local Craigslist for a shop that may be able to fix it.
http://youtu.be/pD9R-YUT69Q
Click to expand...
Click to collapse
Thanks a lot! It totally slipped my mind to check out YouTube.
Sent from my SAMSUNG-SGH-I717 using xda premium
Bought 1 from ebay. Will try to do it myself when it's arrived.
Sent from my phablet ★★★Galaxy Note★★★
Good luck. I did it myself as well. It is not that difficult.
Sent from my MB860 using Tapatalk 2
Has anyone tried replacing just the digitizer on our phones? My friend's LCD is fine, it's just the glass that is cracked.
On my old HTC HD2 the digitizer was glued to the LCD, so swapping it out was pretty tough. I'm wondering if it's the same for this phone.
So it didn't charge also?
Sent from my SAMSUNG-SGH-I717 using XDA Premium HD app
Snarksneeze said:
Has anyone tried replacing just the digitizer on our phones? My friend's LCD is fine, it's just the glass that is cracked.
On my old HTC HD2 the digitizer was glued to the LCD, so swapping it out was pretty tough. I'm wondering if it's the same for this phone.
Click to expand...
Click to collapse
Yup, will be rough, it's glued.
Lcd and digitizer are fused on the note as well. Cheapest I seen it go for is like 250
Sent from my SAMSUNG-SGH-I717 using xda premium
gagejbond said:
Does anyone have any experience with removing a damaged charging port/flex cable? I made a thread about a week ago saying that mine was messed up and one of the wire strip on the charging slot was broken, but and didn't allow it to connect to my computer for file transfer. I talked to ATT and they said the store couldn't do anything and that I would need to call in. I don't want to take the risk of a huge charge, and found a single order part here <clipped URL because XDA won't let me quote it>
It is cheap, and I have e removed the back of my Note before, and removed most of this piece except for the ribbon, and which I have no idea how to. Are there any resources out there to help me with this? I don't want to mess up a new part trying to install this one.
(PS how do I start a new thread on the desktop site? I couldn't find anywhere to do it and SwiftKey isn't faster than using a real keyboard on my PC lol. I am obviously new)
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
Did you receive the part from that supplier? Was it the correct part? I ask because I need the same part for my Note. (Samsung told me that is not a part covered under warranty)
JeremyLC said:
Did you receive the part from that supplier? Was it the correct part? I ask because I need the same part for my Note. (Samsung told me that is not a part covered under warranty)
Click to expand...
Click to collapse
Just to follow up on my own post. I ordered the part, it arrived quickly, and it was DOA Waiting to hear from customer service now.
Be careful doing this I found the new part had the wrong antenna and my reception was gone afterward. Ended up replacing my phone because of that.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
I tried 3 charging ports from ebay,all from diffrent sellers and they were all DOA... Check out parts4repair, I ordered mine and 2 weeks later, my phone is fixed!
http://www.parts4repair.com/samsung-galaxy-note-i717-at-t-dock-charging-port/
I replaced mine, easy, just don't loose the screws, took about 5-10min
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
endine said:
I tried 3 charging ports from ebay,all from diffrent sellers and they were all DOA... Check out parts4repair, I ordered mine and 2 weeks later, my phone is fixed!
http://www.parts4repair.com/samsung-galaxy-note-i717-at-t-dock-charging-port/
Click to expand...
Click to collapse
its took you that long to get the replacement port?
just replaced mine as well with the ebay one from ezletroniks(or something like that). $15 shipped, arrived in less than a week from California to Wisconsin.
Took around 10 minutes to replace. Charging up fine again which makes me very happy.
So it seems apparent that this is not a singular occurrence by any means, which is a little disheartening. But I just wanted to chime in and say that I'm currently on my 3rd charge port.
Fortunately, there's an awesome place a few miles away (I would trust the tech there with my life...he's fixed everything I've thrown at him thus far) that has been able to replace the part for me each time - but every damn time, it works perfect for about 2 weeks and then it goes back to the way it was before, which is always the same symptom: phone doesn't charge (or stay connected to the PC) unless I push the phone UP from back, and simultaneously push the end of the cable DOWN. And even then, sitting perfectly still, I get a sporadic connection.
Needless to say, the 2 extra OEM batteries/chargers (that you can charge just the battery with) and ADB over WiFi have become my best friends
So I'm wondering: (a) has anyone else had this problem multiple times like I have? And (B) has anyone else experienced the same thing as far as the "manual" method I have to use to keep it charging? I'm trying to, as much as possible, rule out the possibility that there's something else wrong with it
Replaced mine
Got the part, took about 15 minutes to replace. Hardest part was prying the bezel off the phone.
After replacing, putting it back together and making sure everything worked, I put the old port under a 30X loop to look at it.
on the board side, where the pins exit the plug, and go to the circuit boar, if you flex the port, I could see the pins LIFTING
off the pins on the board at the solder connection. If I had a micro solder iron & steady hand it would be a simple fix, but
since it took a 30X loop just to see it, and I don't have a micro iron, it was easier to spend less than 15 bucks, and 20 minutes
time to replace the thing :victory:
p51d007 said:
Got the part, took about 15 minutes to replace. Hardest part was prying the bezel off the phone.
After replacing, putting it back together and making sure everything worked, I put the old port under a 30X loop to look at it.
on the board side, where the pins exit the plug, and go to the circuit boar, if you flex the port, I could see the pins LIFTING
off the pins on the board at the solder connection. If I had a micro solder iron & steady hand it would be a simple fix, but
since it took a 30X loop just to see it, and I don't have a micro iron, it was easier to spend less than 15 bucks, and 20 minutes
time to replace the thing :victory:
Click to expand...
Click to collapse
That's actually exactly what the repair shop told me was wrong with it...although I couldn't recall exactly until you said this. I'm pretty sure he's just re-soldered if each time, and never actually replaced the board.
So to a non-hardware person...is that problem due to faulty manufacturing/poor quality parts on the Samsung end? Or does that just end up happening to all devices with a MicroUSB connection as they get used?
p51d007 said:
Got the part, took about 15 minutes to replace. Hardest part was prying the bezel off the phone.
After replacing, putting it back together and making sure everything worked, I put the old port under a 30X loop to look at it.
on the board side, where the pins exit the plug, and go to the circuit boar, if you flex the port, I could see the pins LIFTING
off the pins on the board at the solder connection. If I had a micro solder iron & steady hand it would be a simple fix, but
since it took a 30X loop just to see it, and I don't have a micro iron, it was easier to spend less than 15 bucks, and 20 minutes
time to replace the thing :victory:
Click to expand...
Click to collapse
I have a couple of guesses. One picture showed the connector was loose. It looks to me that the case tabs aren't soldered in. The other thing is I have one cable where the metal part sticks so far out that the plastic never touches the phone. It like sticking a screwdriver in the socket because you can wiggle the socket up and down. I now use a cable the plastic part touches the phone and doesn't wiggle the socket very easily. Wiggling any wire will eventually break it because of metal fatigue.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

Phone doesn't charge the battery - scratched PCB

Hi! At first I wanted to say I didnt find any other thread which could solve my problem.
My battery stats doesnt work correctly. I mean, instead of battery status on my display I can see just a question mark.
But before everything I opened the phone to get to PCB and i scratched it near the antenna pins. Now I cant even charge my battery. It seems that the usb connecter doesnt work at all. However I dont think I broke the usb connecter when I opened my phone.
Do you know what could be the problem? Any advice?
Thank you!
Two photos of my device
scratched pins:
imageshack.us/scaled/landing/9/odbiornik.png
usb connector:
imageshack.us/scaled/landing/685/usbot.png
i think the tin just broken
If it is a hardware issue, why don't you take it to the repair services?
Sent from my Xperia Mini using xda app-developers app
Mysteryagr said:
If it is a hardware issue, why don't you take it to the repair services?
Sent from my Xperia Mini using xda app-developers app
Click to expand...
Click to collapse
You're probably right and I should have done it alredy. Im just wonder if it's because of scratched pins that my USB port doesn't work. Thx anyway. : )

Replacing usb port on s3

I recently bought a s3 to repair and resell.
The phone has 2issues
Broken digitizer
The usb port doesn't charge or is recognized by the pc.
Does anyone know how i replace the micro usb port?
What i know:
it's not connected via flex cable, is soldered to the board. so will need soldering
To replace i need a hot air blower, my soldering gun has that function.
Please tell me more
Sent from my GT-I9300 using xda app-developers app
that's pretty much it. desolder the old one, solder a new one on there.
Does anyone have good resolution pictures of the usb port on the motherboard, so i could know what im getting myself into.
Sent from my GT-I9300 using xda app-developers app
yes, use google. hope you're familiar with SMD soldering
maxcoliban said:
Does anyone have good resolution pictures of the usb port on the motherboard, so i could know what im getting myself into.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Here: http://www.ifixit.com/Teardown/Samsung+Galaxy+S+III+Teardown/9391/1
Good luck!
Glebun said:
yes, use google. hope you're familiar with SMD soldering
Click to expand...
Click to collapse
Dear Glebun and other users,
I'm thinking of replacing the Micro USB port on my black GT-i9300. I've had charging issues some time now. First I had to some ' tricks' examples: Turning off, getting it to charge then turn on. Repeatedly jack the cable in and out. Rebooting and what not.
However now it wont charge at all. When plugged in to the wall socket it just stays at the level it is (when not using and screen off) when plugged in and using it the battery drains. Also my laptop won't reconize the device. (also won't charge when pluggen in the laptop).
I got this phone from my brother who has installed Cyanogenmod on it.
Now what kind of equipement do I need exactly? And do I need to work with some anti-static armband?
I am more interested in how you plan to fix the digitizer and make money on it?

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