So I guess I should start with the background info...
I have a MT4GS that I picked up off eBay with a broken digitizer. I replaced the digitizer right away with minimal issues. Once the phone was up and working I discovered that the earphone speaker wasn't working. I purchased a replacement speaker, but that too failed to work. I've used it for several months, making do by using speakerphone mode when I had to make a call. But that's really annoying.
Yesterday I finally had the time to pull the phone back apart and take a look at it. What I found was that the old speaker had been soldered to the board, but the leads had broken off. I scrapped off some of the protective coating on the electrical traces and soldered the original speaker back in place. I had an issue with the black coating that surrounds the LCD, it took several tries before I had everything back in place. But at least when I started the phone back up everything looked good and a test call confirmed that the earpiece speaker worked. (Yay!)
And then last night when I went to play a game, I noticed that the touchscreen seemed off. I quickly downloaded a couple of drawing games and confirmed that the digitizer wasn't working right. I also picked up Z-Device Test and found there are a couple of holes where the digitizer fails to register a touch and several more places where touch registers but weakly.
Are there any thoughts on or experience with digitizer issues?
I don't know if it will help the problem you're having but it WILL tweak the sensitivity some for you. It's probably well worth a try......
http://d-h.st/NeO
So I pulled the phone back apart and I found my issue. I managed to tear a part of the ribbon cable, cutting 7 of the leads.
So it looks a new digitizer is in my future.
Related
A little preface. I've repaired numerous phones and have never had a problem like this.
Foward to now: I had a guy come to me with two evo shift 4g's with cracked screens that were working fine just cracked which to me didn't look like a problem. It's litterally 4 connections alltogether but what I have found is that my digitizer will work for a second then stop. Battery pull then it works for a minute and then back to not working. The problem is that it's both of the phones that are acting the same way.
Question: Is this a common problem because I know all my connections are perfect and I'm getting tired of going back through these phones,
Any help is appreciated.
Drroid said:
A little preface. I've repaired numerous phones and have never had a problem like this.
Foward to now: I had a guy come to me with two evo shift 4g's with cracked screens that were working fine just cracked which to me didn't look like a problem. It's litterally 4 connections alltogether but what I have found is that my digitizer will work for a second then stop. Battery pull then it works for a minute and then back to not working. The problem is that it's both of the phones that are acting the same way.
Question: Is this a common problem because I know all my connections are perfect and I'm getting tired of going back through these phones,
Any help is appreciated.
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Click to collapse
Did you replace the Digitizer as an assembly? Meaning the Digitizer, and the LCD. Or did you just replace the Digitizer Screen? Also when you were in there did you make sure and inspect the Flex Cable thoroughly? I have found that even the small breaks in the Flex Cable will cause, weird issues to occur.
prboy1969 said:
Did you replace the Digitizer as an assembly? Meaning the Digitizer, and the LCD. Or did you just replace the Digitizer Screen? Also when you were in there did you make sure and inspect the Flex Cable thoroughly? I have found that even the small breaks in the Flex Cable will cause, weird issues to occur.
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Click to collapse
I replaced just the digitizer as the lcd screen was fine and working properly. I've got a desk magnifier when I take the phones apart and all the connections were seated correctly, ribbon cables were all in the same shape as they came, no tears and scuffs anywhere. This is why im just aggravated because what else could this be?
What your mentiioning points to a Flex Cable issue. But if your sure, then I'm at a loss. Did you make sure and put all the fasteners back in? Did any of the connectors act weird when being reconnected? That sometimes ends in a bent Pin.
TEAM MiK
MikROMs Since 3/13/11
Well the flex cables looked fine when I took it off the back of the lcd. The flex cable had 4 connector spots. One snap on connector to the board and three push to snap connectors (one at the top where the speaker is and two at the bottom).
My thing is that the digitizer for the shift had a peice that you had to bend on top of itself so it would have the correct length to snap into the connector at the top where the speaker is. If never felt good about bending ribbon cables but thats how the ones before this one came and even in the videos they did that. It just makes me wonder if that could be the reason.
Hmmmm... if the Flex Cable was actually bent, instead of gently curved that could possibly cause issues. But it doesn't seem like that is what's going on here. I would check everything again. Especially the Flex Cable, and connections.
prboy1969 said:
Hmmmm... if the Flex Cable was actually bent, instead of gently curved that could possibly cause issues. But it doesn't seem like that is what's going on here. I would check everything again. Especially the Flex Cable, and connections.
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I'm just fed up with this thing. I just went through it again and I've gotten to the point I'm just gonna buy the phone from my customer and leave it at that. I've never seen a phone give me so much damn trouble. Thanks for all your help!
I was looking back through my notes ( yes I do enough were I have to keep notes ) just now. I found something that might interest you. Had something sort of similar occur a while back. The device was giving me serious headaches. Well I had forgotten to ask how the device was damaged. When I asked the woman how the device was damaged. She explained that it had been dropped on a curb, and then fallen into a puddle. She then dried it out, and bought it to me. I had repaired two phones for her previously. So I never thought to ask how this one was damaged. The thing was being dropped in water, was what ruined it. Caused all kinds of issues I could not resolve. Ended up switching the Mother Board for her. That was the only thing that resolved the issue. So you may want to ask if the device has been dropped in water. But it's not just that easy. Because you then have to deal with Sprint, because in essence it changes the Phones ID .
So I ended up cracking my screen and installed a replacement last night. Everything seemed fine but I noticed, after putting it back together, that any slight bit of pressure or shock to the top causes my N5 to shut off.
I took it apart again to make sure all of the ribbons were properly connected and to take a second look and everything appears fine. I didn't have this problem prior to the replacement and I was very gentle during the tear down and reassembly so I don't the the CPU or anything on it is damaged. Other than the top being hyper sensitive the phone works perfectly.
Any ideas on what the problem is or could be?
SOLVED(sorry, I don't know how to change the title)
I just wanted to fill in anyone curious or running into this problem in the future on how I resolved the issue.
So after some time I narrowed the problem down to the second back cover (the one with the camera lens and beneath the Nexus branded cover) making contact with the motherboard. More specifically, compressing the power management IC with its aluminum cover. You want to make sure that chip is laid flush which was a PITA, for me at least, because the headphone jack and earpiece speaker wants to push it up and out. What I did was put the jack in, lay the board on top, then gradually adjusted the jack with tweezers while gently pushing the motherboard down until the board was flush, then placing the earpiece speaker in.
I then placed the second back cover on and tightened the screws until I could feel them just slightly putting pressure on the cover. I can't stress how light this pressure is as it is the key in resolving this issue. To compare it to changing your oil filter on your car; when you can feel the filter make solid contact with the block and you then turn it about another half turn to seal it; it's like that but without that half turn.
Anyway, I hope this helps anyone else unfortunate enough to both break their screen and then have their phone randomly shut down when any pressure is applied after fixing it.
hello
TCGUK said:
So I ended up cracking my screen and installed a replacement last night. Everything seemed fine but I noticed, after putting it back together, that any slight bit of pressure or shock to the top causes my N5 to shut off.
I took it apart again to make sure all of the ribbons were properly connected and to take a second look and everything appears fine. I didn't have this problem prior to the replacement and I was very gentle during the tear down and reassembly so I don't the the CPU or anything on it is damaged. Other than the top being hyper sensitive the phone works perfectly.
Any ideas on what the problem is or could be?
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Click to collapse
hello where didu buy the screen for your new n5 ? there is any king of intrusion to do it .
thank:good:
josedecuba said:
hello where didu buy the screen for your new n5 ? there is any king of intrusion to do it .
thank:good:
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Click to collapse
I bought mine off of eBay and it cost me $150. I could be wrong but it looked like the screen can't be separated from the frame. You might want to keep that in mind when purchasing because there are sellers that sell the screen without a frame. Tearing down the N5 was pretty simple. The hardest part for me was getting the back cover off as there are 4 (two on each side) large clips. If you end up bending the clips any, you can push them back to shape to keep the back from creaking like every Samsung I've ever owned. There's a nice guide on iFixit if you want to look at the process prior to ordering a new part.
I've read from others that you can send your phone into LG and they'll repair the screen for you. When you send it in they'll email a quote to you within a day. The price I keep seeing is $146 and I have no idea what the turn around on that is.
I purchased this replacement Screen/Digitizer/Frame assembly for the Nexus 5 after dropping my phone and cracking the glass front. While the glass was cracked, the digitizer and screen work fine and I can use the phone as-is apart from the shards of broken glass all over the touch surface.
When I received the part, I disassembled my phone (with much help from this guide), swapped over the parts to the new housing, hooked everything up, and the digitizer doesn't recognize any touches on the screen. I went around a couple cycles of swapping parts back into my broken phone and everything works like it should. Swap back, no touch.
I figured this must just be a defective unit, so I returned the parts and ordered another. I swapped everything into the new frame and I get the same result - screen works, digitizer doesn't.
I'm willing to accept that I'm doing something terribly wrong here. What troubles me is that every time I switch back to my existing phone screen, everything works like it should. If I was somehow plugging things in wrong or assembling the unit incorrectly I'd expect that it would apply to my existing screen too. At this point I've disassembled my phone, swapped the innards to the replacement screen, then swapped everything back 5 or 6 times now. Each time I do this, my existing screen works and the replacement screen won't register touch. As such, I find it hard to believe that I'm just assembling things wrong because somehow it works every time I put the old parts in, but never works with the new screen.
Does anyone here have any experience with screen swaps? The whole thing is really a straightforward procedure and there's not much to goof up that I can see. Does it even seem possible I could have received 2 screen assemblies with non-working digitizers?
Judging by the reviews, stay away
Looks non-oem as well lol
Most of the negative reviews there look to be fit issues. There are a number of little adhesive pads and rubbery bits that need to transfer over from the existing frame, and I strongly suspect that the people complaining about light leaks or fit issues probably didn't notice that the replacement part didn't include all those bits. None of the reviews that I read mention any problem with touch not working.
Exchange
I sent the vendor an email similar to my OP to see what they say, but I paid extra to get the Amazon Prime vendor on this part so returning it (again) should be no problem. I'll give them a chance to figure this out, but if not, maybe third time's a charm?
I recently decided to fix a cracked screen myself for the first time. It went pretty flawlessly, love how easy it was. Only one problem. I didn't check every part to make sure it was functioning (because it went so easily!), and I found out a couple days after that the earpiece wasn't working. Speaker and earphone jack work fine but not the earpiece. After Googling, I found that a lot of people had this problem, that it was apaprently because there is a small plastic piece that goes behind the earpiece that does something like raises it up and holds it into place against the contacts on the circuit board. Wellllll, I don't have that piece anymore. I contacted LG and according to them that's not a piece they have to sell. Anyone else have this problem and able to fix it without that piece? I'm thinking of just stuffing something in there beneath the earpiece to raise it up, but wanted to see if anyone else had done it and what worked best if so.
Thanks!
Hi,
Hope somebody can help me. I purchased a second hand oneplus one of which the screen was broken. I purchased a replacement screen and replaced it without any issues. After powering it back up and starting to use it I noticed there was an horizontal band around the middle of the screen not picking up touches. I opened it again and tested the same without the cover (camera lens and flash) and it worked fine. When putting everything back and closing it, the problem reappears. I noticed from looking at the tear downs pictures I was missing a small plastic piece sitting to the right of the connector and above the ear piece. No idea what it's is purpose but it is missing. I've read that some users have grounding issues and maybe this missing piece is important to ensure the connector and flex don't touch other parts of the body.
Anybody knows what the function of this plastic piece is and where I can purchase one. All resellers I found don't sell this piece. Agreed it doesn't look like it could get faulty but in my case I or the previous owner lost it.
Thanks.
Just put some tape where the piece should be and you should be fine.
I have the exact same issue, but my plastic piece isn't missing. Did you manage to solve it?