Hey folks,
Just a quick question for anyone that would know. Does anyone have any idea where the keyboard backlight is located within the G1? I have the service manual but it doesn't say anything about the keyboard backlight. Mine has not worked correctly for months (blinks/stutters on and off or stays off completely) and it's a pain to use the kb w/o the backlight.
I'd like to see if there's a torn ribbon, or a wire that's not making contact, to try to fix it, but I need to know where exactly inside the phone is the light. Anyone that can help, I'd really appreciate it.
Anyone? Bueller??
I guess EVERYONE'S keyboard backlight works fine eh?
If its defective why not send it back in to T-mobile?
Also, there may more than one light.
I'd imagine it's a series of SMD LED's.. if the whole thing flickers it could be a damaged ribbon, but if only one side flickers its probably a dry solder joint or something.. you haven't got much hope of resoldering an SMD LED if that's the case.
Related
Hi guys, i'm a big fan of this site, and I'm glad Im part of it since i can use you guy's great roms and tricks. But I have a big problem with my tilt now and I wanted to see if some of you could help me with it. I bought my tilt from a friend with a broken screen, i bought and replaced the screen myself, but after a day or two, the backlight for the screen wouldn't work. The only working solution i found was by squeezing the phone and pressing on the lower left corner above the green call button so the screen wouldnt turn on while i pressed it. I decided to open it, and i put a piece of paper above the connection of the screen and the flex, and this worked for a while. But ever since, i always have to keep putting in new pieces paper or plastic to keep pressure on the connection for the lcd, i was wondering if you guys would happen to know what the possible cause is. And it is hard because when i put those pieces of papers, the call button on the front has so much pressure that it is permanently pressed. I dont know what to do now, i don't know if i should just give up trying to fix my tilt or to just buy a new one. Hope someone can help me thank you.
damn...41 views and no replies....im guessing i should start looking for a new phone
A thorough clean needed
How about carefully cleaning the flex and connector using contact cleaner? If a connection surface isn't perfectly clean, often pressure is needed to push the terminals through the tiny film of grease (eg from fingerprints).
I'd say you bought a bad quality LCD that has a wacky contact inside the module...
im going to buy contact cleaner..if that doesnt work then it's probably a bad lcd like u guys said even though i paid 100 dollars for it ...thank you very much for the replies
ReYCangri said:
Hi guys, i'm a big fan of this site, and I'm glad Im part of it since i can use you guy's great roms and tricks. But I have a big problem with my tilt now and I wanted to see if some of you could help me with it. I bought my tilt from a friend with a broken screen, i bought and replaced the screen myself, but after a day or two, the backlight for the screen wouldn't work. The only working solution i found was by squeezing the phone and pressing on the lower left corner above the green call button so the screen wouldnt turn on while i pressed it. I decided to open it, and i put a piece of paper above the connection of the screen and the flex, and this worked for a while. But ever since, i always have to keep putting in new pieces paper or plastic to keep pressure on the connection for the lcd, i was wondering if you guys would happen to know what the possible cause is. And it is hard because when i put those pieces of papers, the call button on the front has so much pressure that it is permanently pressed. I dont know what to do now, i don't know if i should just give up trying to fix my tilt or to just buy a new one. Hope someone can help me thank you.
Click to expand...
Click to collapse
While replacing the screen you might've shorted something which would then only allow certain function by appling abnormal pressure.
I just got a 2nd hand htc tytn2 today and for some reason when I slide the keyboard out it does nothing. When on the basic today screen the screen doesnt even light up! Any ideas how to fix this guys? I even went as far as flashing a cooked rom to see if its software related but hasn't made a diff. PLEASE HELP as I love my new tytn2 but whats the use if the keyboard doesn't work!
Hopefully all it is is that the cable connecting the keyboard is loose -- you'd have to search these forums for some instructions on how to take it apart and check the cable.
EDIT: or perhaps more likely is that the magnetic sensor is broken.
Man this stinks. Was really looking foward to this tytn as well. Not looking foward to taking it apart and somehow finding a replacement sensor .
Oh, by the way, the keyboard works fine, the phone just doesnt react to the slide at all
OK -- if that's the case then the most likely culprit is the magnetic sensor.
Unfortunately, I seem to recall reading on these forums that it's not easy to change. There could be a missing magnet on one side -- if you take a magnet and wave it around the phone, see if you can get it to switch to landscape mode. If it does, then that's better news -- you just have to replace the magnet to get it to work.
If not, then the sensor is broken...
Can you send it back because it's not in complete working order?
Alright, so my problem is that when I slide out the keyboard to type something in, it won't actually rotate the screen. It isn't an issue with the ROM because I have flashed several different ones and it is the same no matter what.
What happens is that I slide out the keyboard, the screen freezes to whatever it was when I slid it out. I type whatever and when I close the phone it just loads up the text that I had typed in. So the keyboard itself works but I can't see what I typed until I close the phone again which is pretty inconvenient. Does anyone know of a way I can solve this? PLEEEAASSSE! help is much appreciated.
unfortunately it looks (almost 100%) like your ribbon cable between the circuit board and the screen needs replacing.
Your symptoms are EXACTLY what mine did. Then it got gradually worse and the screen ended up turning black on sliding it open.
I've replaced the ribbon cable, with some protection on the area that gets worn and so far the phone is fab again!
see this thread (yeah i know it's mine but it's certainly worked for me!)
http://forum.xda-developers.com/showthread.php?t=561151
obviously if your phone is under warranty it needs to go back, but once repaired it WILL do it again at some point. Terrible oversight in the design of an otherwise great handset.
Well, I fixed my old broken G1 with new screen, touchscreen panel, case and keyboard.
Now I have 2 issue:
1) Sometimes my touchscreen goes grazy!! If I use the touch test application I see that sometimes when I touch the screen in an area there is another virtual touch in another zone of the screen. I read that it can depend from the current source when I charge the phone.. but I'm going crazy!! I opened my phone 10 times (I thought there was a problem in the cable that link TouchPanel to LCDPanel, because when I lock the cable with the clip it tends anyway to go out from the connector, now I put some scotch tape to fix but the problem is here.. so I think is another problem).
2) My volume rocker doesn't work!!
I bought 2 new keyboard to fix this problem, but no one of that fixed the problem. I thought the first new keyboard had volume keys broken, so I bought another one, but the problem persists!!
Now the Touch problem rarely happens, but the volume rocker is completely unusable..
Someone have experience about G1 assembling/repairing ?
Thanks and sorry for bad english
if you have put in multiple keypads have the same issue i would assume that it is the connection going to the motherboard. just a guess there but its either that or you have had a bunch of faulty keyboards.
only other thing would be a software problem
does the keypad work in recovery (let you go up down throughout the list) ?
as for the touch screen, probably need a new digitizer or flex cable, both are cheap and it sounds like you have the knowhow to replace them.
Ok, but digitizer is new!! screen also is new, and I have bought a total of 4 flex cable because I see that they are fragile (I broke the first I bought).
I tried to change flex cable but the problem remain the same.
The only thing that can be damaged is the LCD cable that links to the flex cable: it has a small cut where the cable have a curve, but the cut don't reaches the contacts (the cable is transparent). I also use some glue and scotch tape to mantein lock the cable.
The digitizer cable is connected to the LCD cable, and then they go to the flex cable that connect them to the motherboard.
The strange thing is that seems a software issue, because if I turn off and than turn on the screen, the problem is fixed for some seconds, minutes and sometimes hours...
Another strange thing is the possibility to control the screen with some metal objects from the moment that the virtual touch problem appear (I can control the screen also without touch it, with hand and piece of metal)
video:
have you tried a factory reset if you think it may be a software issue? if that dosent work you can try install a whole new rom.
really it sounds like it isnt the hardware since you appear to know what youre doing. i have a had a few phones that had screen (digitizer) issues and a new rom flashed cured it just fine
since you dont mind putting a few dollars into it, and your familiar with the inside, you can always try to pick up a cheap motherboard or spare phone from ebay or what have you, then swap the motherboard and you could then hopefully find out if it is the hardware or software
nagash91 said:
Another strange thing is the possibility to control the screen with some metal objects from the moment that the virtual touch problem appear (I can control the screen also without touch it, with hand and piece of metal)
Click to expand...
Click to collapse
Huh sounds like you got a cheap digitizer than. Most good digitizers use heat to touch. If it's literally touch, then sounds like its a fake/meh digitizer. i hate the digitizers that aren't heat, but press. I see them all the time in those first samsuck touchscreen phones. And they usually die in a bit. I had a Samsung behold with a screwed up digitizer
demkantor said:
have you tried a factory reset if you think it may be a software issue? if that dosent work you can try install a whole new rom.
Click to expand...
Click to collapse
Yes I flashed 3 or 4 roms after a wipe (I tried also super-wipe.zip), but the problem is here..
The digitizer works well some times, but sometimes get crazy (you can see in the video).
I don't that my new digitizer is fake, but I really don't know!
BTW I'm trying to repair my phone for fun (now I have desire z) and because I am fascinated by my old G1.
PS:
I see another strange issue--
If I touch the screen when the phone is on a table the screen digitizer is not very sensitive and can't take input from fingertips.
If I touch the screen when the phone is in my other hand, the screen digitizer is a lot more sensitive and it take input from fingertips.
My impression is that there is an electric field or something similar that disturbs the digitizer, and when I take the phone in my hand I discharge that field to ground. Also when I turn off the screen, seems that the electric field discharge so when I turn on the screen is ok, but after some seconds the field returns to disturbs the screen.
I really don't know, but is the impression that I have.. something that is not shielded.
Now I'll try to use my phone in airplain mode.
Thanks guys, I'm happy to see that this forum is still very active
Hey Everyone!
I am new to this site so pl bear with me if I am posting some wrong thing.
Got MOTO X Verizon running on HSPA in INDIA. Everything seemed to work good.
Suddenly after 3 days of normal use (no dropping, no dumping, no water damage), screen started to garble at uneven intervals.
With all the pain to search for the problem all over the internet I at last (i think) solved the problem.
For this I had disassembled the screen and motherboard and just pressed the golden sticker (above the inter-connecting cable on the back of the screen)
Screen works fine now, but I guess I screwed up the proximity sensor mounted on the motherboard (seemingly irreplaceable.)
When calling the screen goes black etc...( i know this issue has been cited many times...mine is different I believe)
This was working when i got the phone (waving my hand always used to start the active display).
I checked my settings for Active display, got numerous apps for the the proximity sensor testing. [ Phone Tester shows proximity FAR and does not change that value whatever i do; "Proximity Sensor Finder" shows 3.0 cm last value and does not change ever either]
Then I tried everything from the rubber gasket installation to a hard reset, factory reset and what not.(thanks to tonnes of websites and people helping all over the world)
NO LUCK!
I also noticed that the LED beside the sensor used to blink which has actually stopped. LIGHT sensor and all others are working nicely.
This is where my issue lies :silly: : " Has anyone got this type of problem? Has the golden sticker on the right top corner on the back of the screen anything to do with the RED LED of the proximity? I tried all dialers, all possible ways to bypass the Proximity but invain. I am not wishing to root this phone and I am not good with coding either. Can this be a software issue? (running 4.4.4).Is there a calibrator out there to rejuvenate my proximity?
PLEASE HELP!!
For the time being I am using bluetooth headsets (where the screen remains open).
In Kitkat?
V Limaye said:
Hey Everyone!
I am new to this site so pl bear with me if I am posting some wrong thing.
Got MOTO X Verizon running on HSPA in INDIA. Everything seemed to work good.
Suddenly after 3 days of normal use (no dropping, no dumping, no water damage), screen started to garble at uneven intervals.
With all the pain to search for the problem all over the internet I at last (i think) solved the problem.
For this I had disassembled the screen and motherboard and just pressed the golden sticker (above the inter-connecting cable on the back of the screen)
Screen works fine now, but I guess I screwed up the proximity sensor mounted on the motherboard (seemingly irreplaceable.)
When calling the screen goes black etc...( i know this issue has been cited many times...mine is different I believe)
This was working when i got the phone (waving my hand always used to start the active display).
I checked my settings for Active display, got numerous apps for the the proximity sensor testing. [ Phone Tester shows proximity FAR and does not change that value whatever i do; "Proximity Sensor Finder" shows 3.0 cm last value and does not change ever either]
Then I tried everything from the rubber gasket installation to a hard reset, factory reset and what not.(thanks to tonnes of websites and people helping all over the world)
NO LUCK!
I also noticed that the LED beside the sensor used to blink which has actually stopped. LIGHT sensor and all others are working nicely.
This is where my issue lies :silly: : " Has anyone got this type of problem? Has the golden sticker on the right top corner on the back of the screen anything to do with the RED LED of the proximity? I tried all dialers, all possible ways to bypass the Proximity but invain. I am not wishing to root this phone and I am not good with coding either. Can this be a software issue? (running 4.4.4).Is there a calibrator out there to rejuvenate my proximity?
PLEASE HELP!!
For the time being I am using bluetooth headsets (where the screen remains open).
Click to expand...
Click to collapse
(waving my hand always used to start the active display).
This feature is gone with Lollipop though...
And I read you're on kitkat, but really there was a LED blinking there???
I own an xt1060. There is an LED there, but its always been less than useless for me. It never turns on. Ever. Not for calls (missed or otherwise), notifications, or charging. I've often wondered why it's there.
I can make it work in Cyanogenmod. Any stock ROM renders it useless.
when you said you checked gasket are you referring to the tinny black rectangle gasket around the led and prox censer? when i first starting working on the x i had smiler issue, the little gasket fell off and i did not notice it
hugh a said:
when you said you checked gasket are you referring to the tinny black rectangle gasket around the led and prox censer? when i first starting working on the x i had smiler issue, the little gasket fell off and i did not notice it
Click to expand...
Click to collapse
Exactly the same small thing I m taking about.. God knows I dropped it or not... But when I opened it for the 4th tym... I noticed was not there.. Then I did not get it anywhere in sale and so replaced it with a small white rubber piece with 2 similarly cut holes. No luck. Where did u get it from?
BTW I believe it will make the proximity work only if the led on its left side blinks. That works like a transmitter and receive I guess.
My led won't even flash for once..
I plead to all the genius developers to device an app for proximity bypass.
V Limaye said:
Exactly the same small thing I m taking about.. God knows I dropped it or not... But when I opened it for the 4th tym... I noticed was not there.. Then I did not get it anywhere in sale and so replaced it with a small white rubber piece with 2 similarly cut holes. No luck. Where did u get it from?
BTW I believe it will make the proximity work only if the led on its left side blinks. That works like a transmitter and receive I guess.
My led won't even flash for once..
I plead to all the genius developers to device an app for proximity bypass.
Click to expand...
Click to collapse
it must be there to function properly, it fits very snug around both, seals off all light, i had the exact same issue you described, i have extra, pm me
hugh a said:
it must be there to function properly, it fits very snug around both, seals off all light, i had the exact same issue you described, i have extra, pm me
Click to expand...
Click to collapse
I did replace it with a white rubber gasket almost cut into same pattern after an exhaustive search on internet for its replacement. And I am still stuck.
Also what I believe is that if the LED does not transmit at all, How is it going to help any way?
>>Sorry I am new to XDA could not find the option to PM you.
Thanks
V Limaye said:
I did replace it with a white rubber gasket almost cut into same pattern after an exhaustive search on internet for its replacement. And I am still stuck.
Also what I believe is that if the LED does not transmit at all, How is it going to help any way?
>>Sorry I am new to XDA could not find the option to PM you.
Thanks
Click to expand...
Click to collapse
You seem to not understand that even you have cut a replacement gasket, it may look perfect to you, but it can easily block the proximity and that's about it.
You should try with original one, then start pulling off conclusions if the sensors are defective or not.
Why don't you run a dry test without the gasket?
V Limaye said:
I did replace it with a white rubber gasket almost cut into same pattern after an exhaustive search on internet for its replacement. And I am still stuck.
Also what I believe is that if the LED does not transmit at all, How is it going to help any way?
>>Sorry I am new to XDA could not find the option to PM you.
Thanks
Click to expand...
Click to collapse
click on my profile pic and you will see send message, you must have the gasket, if you dont that is you issue for sure been working on these sense they came out, you can not make the gasket, pm me
liveroy said:
You seem to not understand that even you have cut a replacement gasket, it may look perfect to you, but it can easily block the proximity and that's about it.
You should try with original one, then start pulling off conclusions if the sensors are defective or not.
Why don't you run a dry test without the gasket?
Click to expand...
Click to collapse
"Dry test?" can you please elaborate this?
BTW I had tried using without the gasket too. Same values on the tester apps.
If sensor is working each time the value should change at least a bit when open to light without gasket.
V Limaye said:
"Dry test?" can you please elaborate this?
BTW I had tried using without the gasket too. Same values on the tester apps.
If sensor is working each time the value should change at least a bit when open to light without gasket.
Click to expand...
Click to collapse
By dry test I meant to test it without putting the display/frame over the board and test it that way. If it's not defective you should get proper readings off it.