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I recently dismantled my BA to work on the LCD. I originally thought it would be necessary to disconnect the keyboard ribbon from the main board, so I removed the tape and black clip from the surface mount connector. However, it turned out I could leave the ribbon in place, so I didn't remove it.
After reassembly, only a few of the keyboard keys now work, and the blue LEDs no longer work at all.
I was careful not to force or twist the ribbon at all as I worked, so I don't think it's damaged, but I haven't been able to make the black clip go back on properly. I suspect this is the problem. I have tried to reseat the clip but without success and the keyboard is still the same.
Can someone please explain the role of this black clip and tape, and their relevance to the electrical connection. And can anyone direct me to a 1000x magnified picture of how the clip is supposed to fit!
Thanks in advance...
Hi there,
I had a similar problem when dissasembling one of my PPC6600 phones. The ribbon is quite dellicate, and I wound up ripping the outer conductor (it is the thicker one, and it happens to power the backlight LED's). Needless to say, I had to use a very fine tip soldering iron and some hair-fine wire to fix the mess. When I got my hands on a scrap one from EBAY (for like, 75 bucks because the ESN was locked out), I pulled the keyboard from it and replaced my hack.
Also, I have added to the WIKI a procedure to take apart the BA. I think you can find that HERE -> http://wiki.xda-developers.com/index.php?pagename=DIS_BA_PICS
Check out the one pic that is big that shows you how to flip up the clip.
The connector you are talking about has a little black (brown?) clip that flips up 90 degrees to allow the ribbon to come out. If you didn't flip it up, you might have been able to remove the ribbon, but tough luck getting it back in. You can stick your fingernail in there where the ribbon goes, and lift up on the clip. It should pop up ad remain connected quite easily. Also, when you re-insert the ribbon, you want to make sure that the two protruding tabs on the ribbon 'seat' fully against the connector before you push the clip back down onto the ribbon.
Have fun!
When I did the work I had already seen your exellent pics (thanks ) and my black clip came right off when I lifted it. So my problem is getting the black clip back on, so that it can be flipped up and down normally again. At no time did I try to remove the ribbon so I don't think it's damaged - but I'm wondering if the black clip needs to go back properly before the electrical connection is good again.
PS to anyone dismantling BA - remember to remove both the SIM and the SD card/blank, as these both jam the cover and prevent removal - shame if someone missed this and snapped something . (I tried to add this info to the page with pics but the Edit button wouldn't let me do it - gives a "page not found" error.)
Hi again,
My phone doesn't have a SIM card (is this a European thing or are there some carriers in USA that use SIM cards?)
Anyhow, I think I remember dealing with connectors like these before and having that clip pop off. There are two little tabs on the clip that have little round buttons on each side of the clip tabs, and these buttons prodtrude off the sides of the clip. They match a slot on the connector part that is surface mounted to your mainboard. So, you have to align the clip properly so that these protruding bumps 'pop' back into the white housing on both sides. Now, if these tabs broke off.... then I guess you're outa luck, unless I guess you find some very thin plastic that you can shove in on-top of the ribbon (underneath the part of the housing where the clip SHOULD have gone), so that it pushes the exposed conductors of the ribbon down onto the connector.
Hope this helps!
Many thanks, this helps a lot by confirming (a) how the clip fits and (b) its role in the electrical connection. This information is much appreciated as it gives me a fighting chance when I next have a go at fixing the thing!
How do you get by without SIMs? Does that mean a phone is forever tied to the one provider and phone number?
yodafreak said:
My phone doesn't have a SIM card (is this a European thing or are there some carriers in USA that use SIM cards?)
Click to expand...
Click to collapse
It's a GSM thing. GSM phones (like the PDA2K or SX66) use SIM cards, CDMA phones (like the PPC6600) don't.
I am having probems with my touchscreen and want to pull the case off it so that I can check connections.
The service manual states that after having undone the screws along the bottom edge of the screen that you should use a screwdriver to push into the hole in the bottom left hand edge of the screen case to release the catch to separate the two halves, but pushing the screwdriver in there doesn't seem to release anything.
Has anyone here managed to dismantle the screen and have any tips on how to do it?
:lol: youv'e probaly sorted by now
anyhow ur need to obtain a plastic ended screwdriver (unless you fancy damaging case) insert at join wilst using a fine screwdriver, gently push in hole lever outwards while prising and i'tl 'pop' out do same at other end and use plastic srewdriver to pop open along join all around until it pops of.
had to change screen on mine took about 25mins total, advise u use anti static wrist band (lot of sensitive stuff near screen).
Where did you get your screen from? and how much?
:lol: i brought unit off ebay (internally damaged) for the screen (lucky). theres a taiwanese company, selling them, but not seen on ebay for a while, if you look through archives theres also a usa company, but only repair.
Hi,
Just had an MDA Pro screen replaced by these chaps in Wimbledon:
http://www.xdarepairs.co.uk
Cost quoted was about £110 +VAT + Postage fitted, or £90 +VAT for the part on its own. All in, the screen, including fitting, was not much more than the screen on its own from ebay.
Posted to them on Tuesday at 16:45 and received back on Thursday at 08:45. Working beautifully again.
May be worth a try.
Did a search can't find anything specific to my issues.
So I had to replace my amoled screen (Samsung brand), did the replacement everything works fine. But...
now it seems my touch screen has a mind of it's own. It will jump out of apps on me or it's favorite is to jump to the recent apps screen (the screen when you hold the home down). It first seemed to do this when I held it's sides with a little pressure, now it's doing it less. Now it jumps to the screen when I gently set it down on it's back.
I have opened the phone back up washed my hands with dish soap, then disconnected all the ribbons and q-tipped them with rubbing alcohol to clean any oil off. (this seemed to help the side squeeze issue)
I also applied clear tape to the back side of the new screen like how it was on the OEM screen since it didn't come with any kind of shielding like to OEM screen (ie that weird metal fabric like tape).
I still get issues and am not sure what it could be or I could do, taking it to VW is not an option.
Oddy enough, hitting it seems to help it, I am not sure if something is shorting or what it could be. I have removed the screen and reset it back on the touch pad still nothing helps.
I am about to try cm7 to see if it's a software or hardware thing but I suspect hardware.
Thanks guys
Try a new rom, like you said. This will 100% determine if it is hardware or software. If it still jumps around on cm7, then there is something wrong with the hardware
Sent from my HTC Incredible
I don't know a great deal about replacing hardware on a phone, but is it possible that the screen type is different than the stock type? Some Incredibles have AMOLED screens and others have SLCD. I know with computers, if you replace a part that't not compliant with the original then you have issues.
So maybe the screen you put in isn't compatible with the rest of the hardware?
Just a guess...take my advice with a grain of salt lol
No its the right screen, like I said its the Samsung screen just like oem, the slcd is a Sony product used on 2nd gen dincs. plus the screen and the digitizer are two different parts, the screen is not touch sensitive.
Ah ok. Sorry...like I said, never messed with changing phone hardware....was just tossing out an idea.
I've repaired laptop parts like the LCD, touchpad, and such and had issues with the parts not being exactly the same as OEM, that's why I was asking.
It sounds like a loose connection to me... I havent had any problems with my glass unless its greasy or something. It could also be an issue with the touchpad (button), there is a rubber piece surrounding it that apparently MUST be there... Not sure what would happen if I didn't replace it tho I didn't wanna test it out
So I CM7'ed the phone, it defiantly runs better but it does still bug out.
seems to do it more at work when it's set on my plastic type desk.
I'll pull it apart again and double check the rubber gasket, blow out the optic track button and shim the ribbon connections.
seems something is defiantly shorting just a little bit and it all seems to happen down at the 4 menu buttons side of things
so I pulled it apart one last time. removed the screen and reset it in the case, this time for what it was worth I tried very hard to make sure the screen was mounted as high up toward the top as i could for what it was worth. I also made dbl sure the screen was then firmly pressed back in place and all edges were nice and recessed into it's case.
put the mother board back on and dbl checked all the ribbon connection to make sure they were nice and securely seated and not crooked, then snapped the ribbons down.
I also extended the little grounding? fingers (the ones that press against the copper pads) to make sure they would be firmly in contact with the copper pads. I only extended the ones down by the 4 menu buttons.
I con report it's been about 36 hours and nothing has bugged out yet.
not sure exactly what the issue was but i'll keep you posted if it comes back.
Hello,
I happened to fix the touch screen issues by opening the device and electrical taping the display cable and put small 1 by 1/2 inch paper of a stack of 4 covered with electrical tape to add pressure to the display connecter on the board and screen. So 2 squares and now the screen does not really stick to the adhesive. It barely pops out but I don't know how to seal it up. I applied pressure for awhile which sticks but pops out. Also I reheated it but no results.
That's really interesting. I don't know of any Pixel C specific adhesive but I have seen different kinds of smartphone adhesive or double sided tape on Amazon (I imagine iFixit should have something suitable as well).
Am in the same boat - need to fix the screen. Wondering how you managed to get the screen to pop out...have tried heating and suction cup but the screen refuses to budge. Any pointers?
i3en140 said:
Hello,
I happened to fix the touch screen issues by opening the device and electrical taping the display cable and put small 1 by 1/2 inch paper of a stack of 4 covered with electrical tape to add pressure to the display connecter on the board and screen. So 2 squares and now the screen does not really stick to the adhesive. It barely pops out but I don't know how to seal it up. I applied pressure for awhile which sticks but pops out. Also I reheated it but no results.
Click to expand...
Click to collapse
Did you put the tape over the connector?
I started losing half of my screen, but after disassembly and reassembly I'm now getting no more output so trying to figure out where to go next.
With regards to the adhesive, I saw 3M 300LSE bundled with people selling digitizers: https://www.amazon.com/300lse-Adhesive-Transfer-Attaching-Digitizers/dp/B00LWFO5R6
blackmamba said:
Am in the same boat - need to fix the screen. Wondering how you managed to get the screen to pop out...have tried heating and suction cup but the screen refuses to budge. Any pointers?
Click to expand...
Click to collapse
Heating and suction cup worked for me. Started on a corner until that one moved up a enough for a pick to slide in, then slowly around the rest of the screen. Slowly but steady.
My screen was half-working before disasssembly and now is completely dead, so maybe I heated it too much.
Hi guys,
I have got a fold 3 but when I open it up it seems to be at about 175 degree rather than 180. If I look down the line along the top of the phone when open with one eye I can see it slightly bend off. Should the device open completely straight?
If I look at the back of the device when it's open, I can just see some of the samsung logo on the hinge, like a fingernail gap. Should the two edges of the phone be touching each other when open.
I will try add photos later.
^ Agree - mine does not sit perfectly flat on a desk either. There is always the slightest wobble. If you press down, it will go flat but then the small gap returns.
Yeah, I would worry about that as mine opens flat, you cannot see the Samsung Logo at all.
Yeah, it wobbles a little when open and laying flat because of the camera bump. That's normal. It should be open a full 180 degrees. Unless there is something wrong with mine. LOL!
Like @Talderon said, it should sit flat. When mine is unfolded I cannot see the hinge and the two edges touch.
HOWEVER... When I took it out of the box it was not like that! Like you said, mine didn't quite fold open to 180 degrees. Mine opened to about 178.5 degrees. Just not quite flat unfolded. I think the hinge may need a break in period, IDK?
But I did notice the same thing you did and when I went to check again, I noted it was reaching 180 degrees now. After two months of use is seemingly more fluid than when I originally folded it so I think the break in period is real thing with this hinge.
Mine stopped opening fully and I logged this with Samsung UK through the customer service app. I had to send them some photos and they arranged for an engineer to come round and do a home repair. He ended up changing the inner screen, outer screen and batteries, under warranty. He said he basically just put my Fold's motherboard in a new chassis.
Took him about an hour and it now folds completely flat, is stiffer and opens with a small snap as it becomes flat. Way different to the way it was before he changed everything over. The inner screen crease is also a lot less noticeable now than it was.