Database Develop

New shell destroyed my G1 digitzer?

I had a black g1 that had a broken power button and sticky keys, but its digitizer and touchscreen were intact. I purchased a white shell, installed everything, making sure the ribbons were fine, and now, I have a working g1 with power and good keys, but the digitizer isn't functioning.
Any way to diagnose this prior to me getting a new digitizer?

Recheck the ribbons.. they can pull out when you stick the case back together.

goldenarmZ said:
Recheck the ribbons.. they can pull out when you stick the case back together.
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Looks like it won't seat firmly, and in my attempt to, the little black flip switch broke off ; would I have to get a new display or replace the ribbon port somehow? I'm bidding on some ebay bids for broken G1's so maybe I can salvage some components such as that ribbon to get the g1 back up to snuff.

New digitizer and screen later, I'm not having much luck. Same issue, screen works, digitizer nada.
Is there any other thing to check besides the connection between the display and digitizer and the display to the long ribbon extending down to the phone's motherboard?

princedwi said:
...
Is there any other thing to check besides the connection between the display and digitizer and the display to the long ribbon extending down to the phone's motherboard?
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Click to collapse
Indeed you may check for damaged components on your mainboard...
E.g. there's a level shifter for I2C interface with integrated ESD protection.
First check the output of your kernel with dmesg to make sure that the synaptics touchcontroller get's recognized during boot up.
If your kernel fails to register the driver for synaptics controller, there's something wrong with your hardware.
See the attachment for the location of the touch controller level shifter.
Regards,
scholbert

[Q] Touch screen doesn't respond when in Portrait Mode

Recently my Tilt started acting up, when in Portrait Mode the touch screen does not work. But when I slide the keyboard out and it goes to Landscape Mode the touch screen works. What could it be?
I performed a Hard Reset to try and fix the problem..
but nothing. It still persists.
Any suggestions and information would be appreciated.

This could be a problem with the cable connecting the LCD to the main unit... i think its called LCM connector or flex cable.
This cable has to move everytime you slide open the keyboard, so after a lot of use, the cables dont last and can cost LCD not working, touch not working, earpeice not working, LED not working, etc... could be just a loose connection also.
Have it checked out... and hope its something else not the cables

[Q] Repairing/assembling G1 -> broken volume rocker and touch panel

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)
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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.
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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

Screen cracked - only upper half reacts to touch. Help!

Hello all,
so my brother threw down his phone. Now it has big crack on the back and a light one on the display.
Despite this display looks ok, but only the upper half reacts to touch ...
So the idea is now to do some backups and then sent it in for repair.
The phone is stuck at the lock screen and cannot be unlocked because the number are in the lower half of the screen.
My first idea is to enable the "Glove modus" (Settings -> Display -> Enable Gloves) and maybe the display will still react to pressure touch... (?)
However how can I enable this modus, is it possible via adb and how?
Any help appreciated, cheers
PS:
The phone is rooted, btw.

Use mouse

hohosanta said:
Use mouse
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Click to collapse
What do you mean, exactly?

Maybe he meant to plug a mouse using an OTG cable. I haven't tried myself so i can't vouch for the method

He's right. Buy any cheap USB OTG adapter and plug any USB mouse (even wireless) to Your phone. Tested and working.

Thanks, USB OTG adapter did the trick.

Recovering water damaged z3 compact

Hi All
The GF's z3c recently took a bath in a sink full of washing up liquid, and as it was suffering from the common screen lift issue we suspect that was where water got in.
It was sent off to imend and they cleaned up the corrosion and dried it out, however they found (via replacing the screen) that the water had damaged the display chip on the motherboard and they couldn't risk replacing it.
I've purchased a MHL to hdmi adaptor off ebay (here) and can get the phone screen to display on the TV however the touch screen is erratic and unresponsive. As I cant unlock it I cant mount it as a drive or get at it via ADB (fastboot works but I cant do much with that & it is rooted on the stock 6.x rom).
My next thought was to connect up a USB mouse as I cant pair a bluetooth one and use that but in reading up on it, it would appear that the usb port can be used for MHL or USB OTG not both simultaneously. Has anyone successfully connected a usb device and MHL display on this phone & if so how? My thought is a micro usb hub, mhl adaptor in one side, mouse in the other. Something like this this
Failing that is there any way to get into ADB or pull a backup with only fastboot access?
Thanks