Change LCD Cable - MDA III, XDA III, PDA2k, 9090 General

Hi there!
While replacing the speakre of my BA the lcd cable broke. But I already changed the lcd some time ago and now i have one broken lcd with a good cable and one good lcd with a broken cable.
Does anyone know how i change the cable?

Sorry friend, I had made the the same mistake; there's no way to replace it.
You have to buy a new BA lcd screen.

Well....
Some of those ribbon cables are attached to the glass via what amounts to glue. Electrical contact is done just by touch (no soldering).
At this point, I'd take apart one of the LCD's to see. It's not like you are going to make things worse if you break the glass on the dodgy LCD, it's already dead, correct?
Just try to post the results so the rest of us know as well!

yeah please post your results...
better if you have pics for it.
... im interested in "frankensteining" our BA's

Related

NO NEWBIE! FOR PROS only!!

I've accidently cutted the PCB cable that connects the LCD to the motherboard.
How to replace it? Were to get it? anyone has a spare or used?
Please... I really need help, can't afford to buy the hole screen, need to fix this one.
Thanks guys!
flyboy_____ said:
I've accidently cutted the PCB cable that connects the LCD to the motherboard.
How to replace it? Were to get it? anyone has a spare or used?
Please... I really need help, can't afford to buy the hole screen, need to fix this one.
Thanks guys!
Click to expand...
Click to collapse
cables that fragil and are mainly a plastic with either a conductive paint or copper cladding is not a repairable thing other then replacement, a few have suggested searching ebay as you can get a replacement screen cheap this may also apply to getting the cable only if it's detachable. but believe me I've tried this and i'm great with surface mount on the PCB direct soldering on the ribbon is possible but the wire type adn tools needed out weigh the cost of the LCD used or new

blueangel glassdisplay cracked!

i've got this big ass crack on my display last night. the touchfunction dosn't work so I can't press my PINcode to access the telephone. how, where and how much can i replace the display?
gnops said:
i've got this big ass crack on my display last night. the touchfunction dosn't work so I can't press my PINcode to access the telephone. how, where and how much can i replace the display?
Click to expand...
Click to collapse
The best price I've seen for the touchscreen is on ebay. But, there are a few catches...
First issue: There are two different LCD/touchscreen assemblies that were used on the angel. One is made by Sony, the other by Toppoly. The touchscreen or LCD from one can not be used on the other due to programming and physical layout.
Second issue (and this is probably the biggest): The way they touch screen and the LCD are connected is a major pain in the arse to fix. It's a plastic ribbon cable that has been soldered to a point on another ribbon cable. Unless you are very good at soldering, it's not something I'd attempt due to the largish chance of melting the cables and making things worse, not to mention the potential to hurt the LCD itself.
If you look in the wiki under the hacks and tweaks, the Technical Stuff (including disassembly) link has two pages to look at:
Blue Angel/PPC6600 Disassembling Procedure with Pictures
Blue Angel Spare Screen
While they are not the best pictures, the last image under the disassembling section shows the ribbon cables I'm referring to, and the touchscreen assembly picture for the spare screen page shows a sony touchscreen ribbon cable detached from the LCD cable, which will show the connection points I'm referring to.
I've got this exact issue as well on my O2 branded angel. Due to the cost of a new LCD/touchscreen assembly (almost the cost of a working angel), I'm considering trying to solder a new touchscreen. If I ruin it, well, I've got parts for the next one I get.
I replaced a touch sreen today, its not that bad if you have soldered before. Unfortunatly the screen i got of ebay is not perfect and will need replacing. I have contacted the seller to see if he will send me another one.
Its worth doing!
Gary
Dimlow_uk said:
I replaced a touch sreen today, its not that bad if you have soldered before. Unfortunatly the screen i got of ebay is not perfect and will need replacing. I have contacted the seller to see if he will send me another one.
Its worth doing!
Gary
Click to expand...
Click to collapse
I've soldered plenty of times (a bit out of practice tho), but never something like that.
Any tips and suggestions? My main worry is melting the ribbon cables.
Well, no real tips, just take you time and don't rush it. The plastic can stand quite a bit of heat, i never managed to melt it, The job looks harder that it realy is. you will need a steady hand! Also , taping the connector down before you solder helps.
Gary
Dimlow_uk said:
Well, no real tips, just take you time and don't rush it. The plastic can stand quite a bit of heat, i never managed to melt it, The job looks harder that it realy is. you will need a steady hand! Also , taping the connector down before you solder helps.
Click to expand...
Click to collapse
Ok, that's good to know. The plastic didn't look all that durable, but if it's stouter than it looks, I may check with the house controller (aka CFO aka my wife ) and see if we can spare the dosh to pick one up.
I have to be careful as she wants it once it's fixed!
how do i separate touch screen and lcd? i only need to solder the new touch screen, right?
any help? thanks
pVilaça said:
how do i separate touch screen and lcd? i only need to solder the new touch screen, right?
Click to expand...
Click to collapse
There is a disassembly guide in the wiki.
What kind of screwdrivers are needed to remove those tiny screws on the LCD/ digitizer casing. I have 2 SX66's with broken LCDs and one with a broken digitizer. Time for some repairs.
jdc said:
The best price I've seen for the touchscreen is on ebay. But, there are a few catches...
First issue: There are two different LCD/touchscreen assemblies that were used on the angel. One is made by Sony, the other by Toppoly. The touchscreen or LCD from one can not be used on the other due to programming and physical layout.
Second issue (and this is probably the biggest): The way they touch screen and the LCD are connected is a major pain in the arse to fix. It's a plastic ribbon cable that has been soldered to a point on another ribbon cable. Unless you are very good at soldering, it's not something I'd attempt due to the largish chance of melting the cables and making things worse, not to mention the potential to hurt the LCD itself.
If you look in the wiki under the hacks and tweaks, the Technical Stuff (including disassembly) link has two pages to look at:
Blue Angel/PPC6600 Disassembling Procedure with Pictures
Blue Angel Spare Screen
While they are not the best pictures, the last image under the disassembling section shows the ribbon cables I'm referring to, and the touchscreen assembly picture for the spare screen page shows a sony touchscreen ribbon cable detached from the LCD cable, which will show the connection points I'm referring to.
I've got this exact issue as well on my O2 branded angel. Due to the cost of a new LCD/touchscreen assembly (almost the cost of a working angel), I'm considering trying to solder a new touchscreen. If I ruin it, well, I've got parts for the next one I get.
Click to expand...
Click to collapse
Hey MATE!! damn why didnt i ask this before!!!
i have the o2 xda IIs.. same problem, display works fine.. but tapping doesnt! after it was dropped!
Now, i got a guy to get a spare MDA T-mobile (blueangel) which doesnt work, but its lcd/touchscreen works.. i connected that LCD to my O2, it didnt WORK! how can i differentiate b/w the two LCDS?
i mean, how can i know that the LCD is made by Toppoly or Sony?! that'd be a great HELP!
SyNcViEw said:
i mean, how can i know that the LCD is made by Toppoly or Sony?! that'd be a great HELP!
Click to expand...
Click to collapse
Part numbers on the back or the cable design.
http://wiki.xda-developers.com/index.php?pagename=BlueangelLCD
TD035STED1
this is the code written behind my LCD. I have the O2 XDA IIs.
Is there anything else I need to look at aswell? or should I just buy a LCD with that code?!
SyNcViEw said:
TD035STED1
this is the code written behind my LCD. I have the O2 XDA IIs.
Click to expand...
Click to collapse
Interesting. Looks like the LCD used varies depending on when the phone was made.
My O2 has the Sony LCD.
SyNcViEw said:
Is there anything else I need to look at aswell? or should I just buy a LCD with that code?!
Click to expand...
Click to collapse
Cables and the wiki. The link I posted shows the difference between the two.
And yes, you will have to get the same LCD assembly/glass cover as what you have now. The two are not interchangeable.
There is a tool set you can purchase at radioshack that has the proper tip. Its a cheaply made tool but does the job. It is one of the kits with many bits. It would be the star tip. You can also order the tool online. I've taken mine apart a few times. Its sort of a pain but gets easier the more times you do it (replaced my screen three times). I have however, never been able to get the touch to work again because I can't really see how I would be able to solder such a fine ribbon. Ive had my mogul for almost a year and if my memory serves me the metallic strips are only about an 1/8th of an inch thick or less. I got lazy and put a piece of tape across the ribbon and put a small amount of glue to hold it down. Still didnt work. Didn't really expect it to either, but it was worth a shot. I turned it into insurance said I lost it and ended up with a broken 6600 and when I called to complain they sent me a mogul. So it's been awhile but I loved the phone. Hope this helps out.
dont scare the people
it can be replaced in 15 minutes with proper tools (screwdrivers)
i ve found some russian manual with pictures how to disasemble the BA (just look for it on the net) and its very easy, no need for soldering
there are 2 versions of displays, one have silver ribbon and the other have golden
when you opet your BA you ll see the display and the ribbon, also there is serial number of the display so you can check it too... all BA displays on the ebay have info about the ribbon and the serial number
I bought it for about 30$ and works perfectly, as original one...
buy digitizer and screen in one piece
you have to be total noob to have problems with changing of the display, so go for it !
If you are planning to replace the digitiser YES you do need to some fine soldering, all you need is the correct soldering iron tip for fine soldering and it is possible, done it about 4 times so far and everytime I promise myself not to brake it again but hahaha,
You can buy the LCD + digitiser together if you are unable to do soldering,
I use a razor which i took out from my shaver and thats what I use to seperate digitiser from lcd.
There are very cheap digitiser panels on EBAY, However some of these are not so good and ( digitiser is a 2 layer glass assy.) sometimes little area of this 2 layers stick together making touch screen non responsive.
Alternative is look out for spares, repairs sales if the screen is good buy it replace it, if you are a novice when it comes to these things, just take your time and dont rush it, even if it helps make little notes when you are opning the device as it ll make it easy when it comes to puting it back together.
And if you can get your hands on one keep a spare screen
Im sooo sad
I just cracked my screen I really hope I get a replacement cus I got more attached to my BA ever since I found out I could upgrade it. I thought it was not a biggie crashing it because I have dropped so many times and nothing happened but today something happened...
screen is 30$ at ebay, and no need to be sad, in few days it can be fixed

Qtek 9090 LCD problem

Hello! I need an answer to a question: what is the problem to my Qtek 9090 LCD? I cracked only the touchscreen glass (not the entire LCD screen). I had another Qtek 9090 that was not working, but that glass was OK. I changed the glass (this one had a wider cable and I soldered it) and it is working just fine. But the display isn't showing all its colours, it show only a few (I think 16 colours ). What can I do to solve this problem? Can it be a problem to the LCD's ribbon cables? Please help me! I need a solution as soon as possible. It's enough if you tell me where is the problem and I can do the fixing. Thank you very much!
With the cracked touch screen, lcd show all colours? maybe when you soldered the new glass you soldered another thing also.. i don't know.
I changed the glass (this one had a wider cable and I soldered it) and it is working just fine.
You can tell what you do to change the touch screen and how you solder it? All touch screen need to be soldered?
thanks and good luck with your problem.
any help? thanks
AIN1
I'm electronic technician, let me explain you, the flex wire need an especial low termic solder past cause it need 0 resistance to pass the little signal through the flexible line, when you damage the flex wire the resistance was incresed and the signal it afected, oviusly the image gonna afected.

need a cheap Motherboard

Got my brothers old mytouch 4g with a shattered screen. upon replacing the lcd and digitizer I somehow broke the connector for the lcd ribbon cable. not sure how I did that it just seemed to crumble. does anyone happen to have a used one sitting around that they can sell?
just in case you can't find a cheap motherboard. can i buy your mt4g accessories? i need a cheap original accessories.
Kaz_7454 said:
Got my brothers old mytouch 4g with a shattered screen. upon replacing the lcd and digitizer I somehow broke the connector for the lcd ribbon cable. not sure how I did that it just seemed to crumble. does anyone happen to have a used one sitting around that they can sell?
Click to expand...
Click to collapse
I have six of them, but they all have the bad emmc chip and have failed... So i dont think you would be too interested in those. so i highly doubt you will find what you are looking for as well, if it is in good shape, then why would they want to sell it, and there are few, if any other than me that have tried anything like hardware hacking these things...
is it possible to swap the emmc chip from one board to another?
Kaz_7454 said:
is it possible to swap the emmc chip from one board to another?
Click to expand...
Click to collapse
not that i am aware of, check ebay for a board though...
the board i have now has a good emmc chip in it and works great except for the lcd connection point. the top plastic broke off to the ribbon cable is loose and it causes the screen to flicker real bad. ive looked online and a new board is around $120 new. im trying to get a broken phone off of ebay but so far they have all had bad chips.
Epoxy might be the dirty fix you need...
Me too!
Kaz_7454 said:
Got my brothers old mytouch 4g with a shattered screen. upon replacing the lcd and digitizer I somehow broke the connector for the lcd ribbon cable. not sure how I did that it just seemed to crumble. does anyone happen to have a used one sitting around that they can sell?
Click to expand...
Click to collapse
I have the same problem. The LCD connector is all messed up after attempting to replace the screen. Did you find a solution?
Me too! Let us know if you figure out either how to fix it or where to get some good motherboards.

[Q] S3 screen/led replacement issue

I recently bought a galaxy s3 off ebay that just needed a glass screen repair. Having done several of these with other models I thought no biggie ill ju st change out the digitizer and have a heck of a deal lol until I started looking into how the phone was made and the screens being fused together like they are. I followed a youtube video and heated the screen with a hairdryer and proceeded to try and carefully tried to remove the outer glass without harming the digitizer or lcd screens fused behind it. Unfortunately when I removed the glass screen the digitizer came with it. I thought id ripped the digitizer's flex cable til I read this phones digitizer doesnt connect that way. It didnt crack the lcd screen in any way tho, so Im pretty sure I can just clean the lcd rly well and make sure all the adhesive and glass is cleaned off and use new 3m adhesive to install a new digitizer then the glass screen over it.
The only thing im questionable about is a thin brown ribbon/wire that was pulled out of its original place iand tore a little while doimg this removal. Some of the adhesive from the factory apparently stuck to it while I was heating the glass and attatched itself to the digitizer somewhat or enough to work its way out and initially tear as I was pulling the glass off. Its not the buttons or the small cable that attatches them but it is right beside them. Can anyone with some experience working on these galaxy 3s please tell me what this hooks up, controls, or what other replacement part I would have to buy that would have this ribbon included in it? Or with this ribbon being the way it is, am I going to have to buy the lcd,digitizer, &glass screen replacement that comes preassembled? I know its not the lcd flex cable amd doesnt go to the digitizer so im at a loss.
Im attatching pics so u will know what im referring to. Thanks for any help its greatly appreciated.
Pics after screen removal.
That's why I paid more and got the LCD+Digitizer. Cost more but made it a million times faster.
Sent from my Freeza MD4 Stock Rooted Galaxy S3
Yeah i understand i was just tryin to save a few. I can still do that and not lose but 10 bucks so notjhing hurt if i cant find a solution to this or just make double certain that ribbon being the way it is in the pic isnt going to hurt anything.
rbroyles528 said:
I recently bought a galaxy s3 off ebay that just needed a glass screen repair. Having done several of these with other models I thought no biggie ill ju st change out the digitizer and have a heck of a deal lol until I started looking into how the phone was made and the screens being fused together like they are. I followed a youtube video and heated the screen with a hairdryer and proceeded to try and carefully tried to remove the outer glass without harming the digitizer or lcd screens fused behind it. Unfortunately when I removed the glass screen the digitizer came with it. I thought id ripped the digitizer's flex cable til I read this phones digitizer doesnt connect that way. It didnt crack the lcd screen in any way tho, so Im pretty sure I can just clean the lcd rly well and make sure all the adhesive and glass is cleaned off and use new 3m adhesive to install a new digitizer then the glass screen over it.
The only thing im questionable about is a thin brown ribbon/wire that was pulled out of its original place iand tore a little while doimg this removal. Some of the adhesive from the factory apparently stuck to it while I was heating the glass and attatched itself to the digitizer somewhat or enough to work its way out and initially tear as I was pulling the glass off. Its not the buttons or the small cable that attatches them but it is right beside them. Can anyone with some experience working on these galaxy 3s please tell me what this hooks up, controls, or what other replacement part I would have to buy that would have this ribbon included in it? Or with this ribbon being the way it is, am I going to have to buy the lcd,digitizer, &glass screen replacement that comes preassembled? I know its not the lcd flex cable amd doesnt go to the digitizer so im at a loss.
Im attatching pics so u will know what im referring to. Thanks for any help its greatly appreciated.
Click to expand...
Click to collapse
I'd go check out this thread and ask some of these guys. A lot of them seem to have attempted repairs already, and many of them have had to troubleshoot different issues. http://forum.xda-developers.com/showthread.php?t=1890708&page=78

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