[Q] Touchscreen - GT540 Optimus General

My screen is all weird, I press to go to her right and go left, I press the menu and she goes left. What do I do?

1) Try another ROM
2) Try to fix/replace the screen
3) Buy new phone (but please don't if you want to become developer )
Sent from my GT540 using Tapatalk

It work
I tried two roms was in third, thanks

try to find
Try to find touch screen calibration for lg gt540 on xda forums i found it somewhere but i dont rember where

I would attempt to find something to calibrate the screen if that doesn't work the digitizer might needs replacing, you can get them cheap on eBay, and three are vids on YouTube with instructions.
Sent from my GT-I9300 using xda premium

Well, That's a touchy situation lol
Anyway, Try replacing the digitizer
Sent from my Sony Tablet S using xda premium

Related

DZ: capacitive buttons unresponsive

litterally out of the blue about 2 days ago, the 4 capacitive buttons on the front simply do not respond to touch...
and EVERYTHING else is working fine, keyboard, display, trackpad, everything else is working w/o a problem...
the lights behind the buttons come on, but no response when pressed...
its currently running Unity 1.27 (since released)
ive tried the patch via CWM to remap the keys to no avail... i am going to try and get into titanium to run a backup of apps, then wipe and flash version 1.31 of unity hoping its a software issue...
the closest thing i found to my issue (DZ related) was an issue with the light sensor causing the backlght to act up, but that isnt whats going on here, so as of now im at a total loss...
any help or direction would be greatly appreciated...
Ok, I wiped, flashed and installed 1.31 and same thing... Crap it has to be HW related then...
Ideas?
Sent from my MB860 using XDA Premium App
johng75 said:
Ok, I wiped, flashed and installed 1.31 and same thing... Crap it has to be HW related then...
Ideas?
Sent from my MB860 using XDA Premium App
Click to expand...
Click to collapse
If you are sure its hardware related, then try to unroot your phone and see if you can get a replacement from your carrier.
Sent from my HTC Vision using XDA App
You need to buy them and replace them. They come as a set with microphone and vibrator attached. Very cheap on ebay. Middle plate has to be separated from glass to get to them.
Sent from my SGH-T959 using XDA App
evilcuber said:
If you are sure its hardware related, then try to unroot your phone and see if you can get a replacement from your carrier.
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
only reason im leaning towards HW is because i already reflashed, and wiped the phone, and they still dont respond...
only problem is,im in FL-USA, and this came from canada... lol
buttons can be bought on ebay huh?
EDIT: would this be what im looking for?
http://www.ebay.com/itm/BUTTON-TRAC...232?pt=LH_DefaultDomain_0&hash=item3cb6a583b8
EDIT: wouldnt i be lookking at getting a digitizer? but if that were bad wouldnt i have more areas besides jus the buttons none responsive?
Can anyone help clarify the part I should be looking for?
Our even have other ideas I could test?
Thank you-
Sent from my MB860 using XDA Premium App
Yes? No? Maybe?
Can anyone help clarify the part I should be looking for?
Our even have other ideas I could test?
Curiously enough, my four capacitive buttons (apps/menu/back/search) have stopped working too
I take good care of my phones
HTC CRAP ??
I'll find out...
I replaced both parts... Back to working condition
Sent from my MB860 using xda premium
And what to parts were those? I have the same issue. The button trackpad flex cable and digitizer were bad?
thanks

Screen Flicker Issue

Anyone else got this? Basically, when the phone screen isn't moving, such as when I'm reading some text, the screen flickers. For example, whenever I'm reading a post on xda, the white background around the text starts to flicker, and it is really noticeable in the dark while just reading posts in my rom thread, and its very distracting. (Happens when keyboard is open and closed)
Anyone else have this? Anyone know what part I should buy to replace it?
Sent from my HTC Vision using XDA
i had this a few months ago and now the phone is on low all the time cant turn up, the brightness it still flickers a bit brighter every now and then.
if you have the same as me it isnt the screen i was thinking its was the ribbon cable and couldnt find a cheap replacement based on a hunch,
now i seen more people getting this i would guess its the driver board for the screen,
not looked in to this though and dont want to folk out money on a phone i am looking to replace as soon as the driod 4 gets GSM.
niai_mack said:
i had this a few months ago and now the phone is on low all the time cant turn up, the brightness it still flickers a bit brighter every now and then.
if you have the same as me it isnt the screen i was thinking its was the ribbon cable and couldnt find a cheap replacement based on a hunch,
now i seen more people getting this i would guess its the driver board for the screen,
not looked in to this though and dont want to folk out money on a phone i am looking to replace as soon as the driod 4 gets GSM.
Click to expand...
Click to collapse
Ahhh man, it's so noticeable when it's on low brightness my ribbons going too, I see screen tear when I open the keyboard ;( thanks
Sent from my HTC Vision using XDA
xT4Z1N4TRx said:
Ahhh man, it's so noticeable when it's on low brightness my ribbons going too, I see screen tear when I open the keyboard ;( thanks
Sent from my HTC Vision using XDA
Click to expand...
Click to collapse
Does this mean no more taz roms?
Sent from my HTC Vision using xda premium
MarkyG82 said:
Does this mean no more taz roms?
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
No it doesnt just means I need to save up for a new ribbon cable thing :')
Sent from my HTC Vision using XDA
xT4Z1N4TRx said:
No it doesnt just means I need to save up for a new ribbon cable thing :')
Sent from my HTC Vision using XDA
Click to expand...
Click to collapse
Happy days. Kinda :}
Sent from my HTC Vision using xda premium

[Solved] Backlight Screen Problem

I have a backlight problem with my HTC EVO Shift. The backlight has stopped working consistently. I believe it has something to do with the cable in between the slider part. When my phone is completely shut, the backlight is not working. When my phone is completely open (keyboard exposed) the backlight is not working. when my phone is in the halfway position (keyboard partly exposed) the backlight illuminates the screen and I am able to use the phone. It is very difficult to continue to use the mobile device in the halfway point. I have another mobile device on the way but I will need to see the screen in order to get the rest of my data off, or at least make a nandroid backup and go from there.
If it is not the cable then can someone point me in the right direction. If it is the cable/screen could someone tell me where to get a replacement. I am capable of doing repairs. I would rather not if it is avoidable.
thank you xda community.
Re: Backlight Screen Problem
Main flex cable could be your issue. Grab the part from eBay
Sent from my Nexus 4 using Tapatalk 2
Re: Backlight Screen Problem
I have one on the way. Thank you. Funny thing. When i took it apart the cable itself looked okay. I guess there may be damage within i cannot see. I do use the keyboard ALOT.
Thanks again
Sent from my XT897 using xda app-developers app
Re: Backlight Screen Problem
humbleheadbanger said:
I have one on the way. Thank you. Funny thing. When i took it apart the cable itself looked okay. I guess there may be damage within i cannot see. I do use the keyboard ALOT.
Thanks again
Sent from my XT897 using xda app-developers app
Click to expand...
Click to collapse
It could be a tear a fold a crease anything really man. Like mine is bad and only copper showing and its useless to me and has been for a while
Sent from my Nexus 4 using Tapatalk 2
Re: Backlight Screen Problem
Right now i do not have my photon q registered so i need my evo shift in the interim. I wish i could let it go, but i need it right now. I cannot even forward my calls . 2-3 more days and i should be back in business.
Sent from my XT897 using xda app-developers app
Re: Backlight Screen Problem
I would like to mark this solved and add a thanks. Is it possible?
Sent from my PG06100 using xda app-developers app
Re: Backlight Screen Problem
humbleheadbanger said:
I would like to mark this solved and add a thanks. Is it possible?
Sent from my PG06100 using xda app-developers app
Click to expand...
Click to collapse
If you're using the xda app, just add "solved" in the subject line. You may need to scroll up to see it...
Re: Backlight Screen Problem
humbleheadbanger said:
I would like to mark this solved and add a thanks. Is it possible?
Sent from my PG06100 using xda app-developers app
Click to expand...
Click to collapse
If you edit your first post, the best way is to just add "[SOLVED]" to the beginning of your thread title
To give thanks, from the app either tap on the persons post and then hit the thanks popup, or on the computer theres a Thanks button under their name

Hard bricked Nexus 7 Screen not working,

Device : Nexus 7
Running : Android 4.1.2 Rooted
Problem : I was trying to unroot it and flash a 4.2.2 ROM to the device and i ended up bricking it somehow. I looked around a lot on here and youtube. I found one solution i had not tried which was to get into recovery mod. But the device was stuck on the boot loaded. So i hard shut it down, and pressed the key combination to load the boot loader. And, the screen wasn't loading. I heard the little chimes my computer makes when ever a USB device is active, so i heard the thing load into the boot loader. But its not showing on the screen!
Please help i really shouldn't have done this. But i am literally about to cry.
I tried using Wugfresh's Nexus toolkit to flash the ROM, and it would stop on sending system.
I dont know if i did something wrong, if the kernel was messed up, if the kit wasnt right, please as the video said there is 4 million members here. someone has to know what to do...
-Sean
That is not the bootloader. You need to have your device disconnected from your pc. Then go to your bootloader.
Sent from my SPH-D710 using xda premium
graydiggy said:
That is not the bootloader. You need to have your device disconnected from your pc. Then go to your bootloader.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Okay. I disconnected it and started the tree button combination.
Annnnd Nothing is happening.
Should i try plugging it into the wall outlet?
Volume up and power. Its not a 3 button combo.
Sent from my SPH-D710 using xda premium
graydiggy said:
Volume up and power. Its not a 3 button combo.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I feel kind of stupid.
Nope. Not working. And its not the battery. its plugged into the wall.
Just a noob guess, Is it possible the device isnt even using the display? Like its so messed up that its per say not even realizing it has a screen?
Try volume down and power. It is possible that the screens flex cable came loose. Pop the back off and check. You should be getting some visual queue. If all else fails hold the power button for awhile. Like around 15 to 20 seconds. I have had to do that a few times. That should fix it.
Sent from my SPH-D710 using xda premium
graydiggy said:
Try volume down and power. It is possible that the screens flex cable came loose. Pop the back off and check. You should be getting some visual queue. If all else fails hold the power button for awhile. Like around 15 to 20 seconds. I have had to do that a few times. That should fix it.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
OKay. Whats the best tool i should use to get it open?
Also thank you so much for your help.
You can use a fingernail really. The best thing is a plastic spuger. A guitar pic works nicely. Just start at the bottom and work your way around.
Sent from my SPH-D710 using xda premium
---------- Post added at 11:56 PM ---------- Previous post was at 11:53 PM ----------
Have you dropped the device at all or sat on it? If you are getting no visual queues, either you have a loos flex cable, or the lcd is cracked or just non functional all together. The best way to check that is to shine a flashlight at an angle into your screen. Look for any odd lines that have a slight or significant curve to them.
Sent from my SPH-D710 using xda premium
graydiggy said:
You can use a fingernail really. The best thing is a plastic spuger. A guitar pic works nicely. Just start at the bottom and work your way around.
Sent from my SPH-D710 using xda premium
---------- Post added at 11:56 PM ---------- Previous post was at 11:53 PM ----------
Have you dropped the device at all or sat on it? If you are getting no visual queues, either you have a loos flex cable, or the lcd is cracked. The best way to check that is to shine a flashlight at an angle into your screen. Look for any odd lines that have a slight or significant curve to them.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Assuming i found the right cable which was under a copper shielding that was running up from the metal frame under the battery. It was yellow.
It was tucked all the way in.
I didnt see any cracks or lines. I did sit on my pillow was under it.
That could possibly break the device. I just recently broke mine the other day in similar circumstances. The cable is right by the battery on the right. Should be almost centered by the batt.
Sent from my SPH-D710 using xda premium
graydiggy said:
That could possibly break the device. I just recently broke mine the other day in similar circumstances. The cable is right by the battery on the right. Should be almost centered by the batt.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Oh. But it was working the other day. Does it just do that?
and Yes i got the right cable. So what can i do now? It was rooted so i cant send it back, Is there anything i could do?
You technically could send it back... They can't confirm it is rooted unless you unlock the bootloader and the little lock thing shows up on the splash screen. And since your screen doesn't work, they can't see it unless they test the device after replacing the screen assuming they don't replace the whole unit. But I don't know their procedures. Most companies just replace the whole thing. The screen shouldn't just go out. Not saying it doesn't happen, but it shouldn't.
Sent from my SPH-D710 using xda premium
graydiggy said:
You technically could send it back... They can't confirm it is rooted unless you unlock the bootloader and the little lock thing shows up on the splash screen. And since your screen doesn't work, they can't see it unless they test the device after replacing the screen assuming they don't replace the whole unit. But I don't know their procedures. Most companies just replace the whole thing. The screen shouldn't just go out. Not saying it doesn't happen, but it shouldn't.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Alright. Ill call Google in the morning. I actually was following a guide i saw on a google forums thing where it said to flash the ROM if its not updating as it should. Which is what was happening.
Seanwoodfin99 said:
Alright. Ill call Google in the morning. I actually was following a guide i saw on a google forums thing where it said to flash the ROM if its not updating as it should. Which is what was happening.
Click to expand...
Click to collapse
Well good luck. Never thought one could fully brick a Nexus 7. From my understanding, it is damn near impossible. Tell them that you were updating to 4.2.2 and it won't boot up at all now. That should avoid them replacing the screen and checking everything ultimately getting you a whole new device. I know you said it's not the battery, but try charging it overnight and the try to boot it up. I have seen so many people think they bricked, but discovered later on down the line 'up to 6 months later' that their battery was just dead.
Sent from my SPH-D710 using xda premium
graydiggy said:
Well good luck. Never thought one could fully brick a Nexus 7. From my understanding, it is damn near impossible. Tell them that you were updating to 4.2.2 and it won't boot up at all now. That should avoid them replacing the screen and checking everything ultimately getting you a whole new device. I know you said it's not the battery, but try charging it overnight and the try to boot it up. I have seen so many people think they bricked, but discovered later on down the line 'up to 6 months later' that their battery was just dead.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Yep its charging now.
Ill call in the AM if its not going. I got a case number and everything and i have Asus's number.
But seriously thanks for all the help youve given me.

Bottom screen not responding well

So I have this weird issue. The very bottom of my screen does not respond well! At first I thought it was a bug with the navigation bar, tried several roms and tried PIE controls until I figured that there is something wrong. I have the navbar now set at 48 dpi and I have to press at middle of it to work, where the very bottom is dead. I activated 360 rotation so that my statusbar now is at the bottom of the screen instead of navbar and it does not respond at all! Anyone can explain ?
Sent from my Nexus 4 using xda app-developers app
Anyone please ?
Sent from my Nexus 4 using xda app-developers app
Ensifolk said:
Anyone please ?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I think you should try a clean flash.. I never had such problem... about you
From when this problem has been started? please share more information so that we can help you..
Rohit02 said:
I think you should try a clean flash.. I never had such problem... about you
From when this problem has been started? please share more information so that we can help you..
Click to expand...
Click to collapse
I have Tried like lots of different roms with clean fresh installation and the problem is still there ! I think its a hardware problem. For ezample right now if I set my navbar to 32 dpi it wont respond at all because the bottom of my screen have lost the touch sensitivity. I have droppes my phone several times, could that be it ? I cant really remember when I exactly started noticing the issue...but just few days ago...I have tried PIE and same **** :s I have to set the trigger area to max for it to respond...and yes im talking about experiments after a clean install before installing ANY third party app
Sent from my Nexus 4 using xda app-developers app
Ensifolk said:
I have Tried like lots of different roms with clean fresh installation and the problem is still there ! I think its a hardware problem. For ezample right now if I set my navbar to 32 dpi it wont respond at all because the bottom of my screen have lost the touch sensitivity. I have droppes my phone several times, could that be it ? I cant really remember when I exactly started noticing the issue...but just few days ago...I have tried PIE and same **** :s I have to set the trigger area to max for it to respond...and yes im talking about experiments after a clean install before installing ANY third party app
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
okays... Now I think it surely a hardware problem,as you said you havr also dropped your phone several times.. All the best goto the service centre for the repair.. dont tell them that you have dropped your phone else they will charge you badly even if you are under warranty.. You are welcome..
Rohit02 said:
okays... Now I think it surely a hardware problem,as you said you havr also dropped your phone several times.. All the best goto the service centre for the repair.. dont tell them that you have dropped your phone else they will charge you badly even if you are under warranty.. You are welcome..
Click to expand...
Click to collapse
Think Im gonna give no damn about it and of course buy the nexus 5, which I would have done either way..but im surprised how can a touchscreen lose a part of its sensitivity somewhere on the screen ?
Sent from my Nexus 4 using xda app-developers app
If you look closely at your screen at an angle with the screen off you will be able to see the digitizer matrix that is fused to the screen.
It is a series of squares.
Each of them squares has 3 horizontal lines and one vertical.
Behind the bezel there will be the circuitry that connects every horizontal and vertical line
If say for instance after one of your phone drops it has damaged one of the connectors at the side, you will lose the entire row of touch detection. Which is probably what has happened
Sent from my Nexus 4 using xda app-developers app
Ensifolk said:
Think Im gonna give no damn about it and of course buy the nexus 5, which I would have done either way..but im surprised how can a touchscreen lose a part of its sensitivity somewhere on the screen ?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Alex240188 said:
If you look closely at your screen at an angle with the screen off you will be able to see the digitizer matrix that is fused to the screen.
It is a series of squares.
Each of them squares has 3 horizontal lines and one vertical.
Behind the bezel there will be the circuitry that connects every horizontal and vertical line
If say for instance after one of your phone drops it has damaged one of the connectors at the side, you will lose the entire row of touch detection. Which is probably what has happened
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Alex is right i had this happen to my moto defy. I'd say get it done under warrnty no matter if youre keeping or selling. Improve your resale value and protect you from having the entire digitizer die on you

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