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[Q] xoom touchscreen issues?

I got my Xoom (WiFi) yesterday... already noticing some weird touchscreen behaviour.
It seems to me that whenever the Xoom is laid down flat, there's a chance that the device will stop responding to touch presses properly. Instead of being able to press-and-swipe, it acts like I tapped the screen (eg, pressed my finger on the screen and then lifted it straight back off) or worse, it causes a screen press in completely the wrong position. When it starts happening, it keeps on happening, but picking the Xoom up and holding it vertical seems to fix the problem.
Half the time it seems fine laid down though, so I'm not sure if it's just coincidence that it stops working at the same time I put it down flat or not, or that maybe picking it up means my hand is in contact with the back of the screen and this somehow changes some sort of electrical variable in my hands that affects the touchscreen operation.
Anyone else seen the same issue? I'm thinking I may need to take it back but want to see if anyone else has experienced anything similar.
Chris.

ok.. judging by the lack of response on this, I may either be on my own or it's just something that nobody is noticing. I've been testing it a bit more - I wrote an app which can show each touch point on the screen so I can see how the screen press/drag is working. This is what I've found.
Holding the tablet upright, screen presses and movements are fine, however I've noticed that if I hold my fingers in the same place for a while, the touch points will prematurely end.
If I put the Xoom down on the couch, there is a strong likelihood that the touchscreen will become incredibly unresponsive. I have had it regularly show up phantom presses where touching one point of the screen makes it appear as if I have also pressed another point of the screen. I also cannot drag my fingers across the screen - the touch points stay where they are until I take my fingers off the screen completely, or they just disappear right away as if I tapped the screen.
When this happens, if I touch the side of the case with either a free finger or my other hand, the touchscreen starts working perfectly! Seriously! I'm not kidding, I've been messing with this thing almost non-stop for the past coulpe of days and it is consistently doing this. So - couch + little finger on side of case = working touchscreen. couch but no contact with metal case = malfunctioning touchscreen.
If I have the Xoom in Motorola's case, it seems to work fine. If I put it on a table, it's a bit buggy but generally works better than on the couch. Any sort of material seems to send it regularly into crazy mode. The only time I've noticed it doesn't do this is if I'm in contact with the device immediately before putting it down and then remain in contact with the screen.
Could some sort of static charge cause this? Is it possible that me touching the back of the case is effectively allowing it to 'conduct' electricity properly on the touch screen? I'm not all that familiar with how capacitative screens work other than I assume they measure capacitance from your fingers. Maybe a static charge could throw it off. Or maybe I have weird fingers.
Anyway, I'm pretty close to taking the Xoom back now. Just trying to figure out if it's actually faulty or whether they're all like it by 'design'.

sorry
need to post to remove my limitations sorry again

This could be a loose touch controller cable. Someone had similar problems and posted a how to fix this, search for it.

It happens with me too, it's incredible annoying when you are developing and the tablet is on your table for debugging..
Did you find how to fix it?

I have a serious unresponsive issue on my Xoom when charging. I've tried several different chargers, (all from Motorola) with no luck. Unfortunately all the ones I tried where at my house so I'm not sure if its a wiring issue in my house.
I also have a similar problem on my Droid Razr so I'm starting to think its definitely the wiring.
Anyone know about this issue or have any recommendations?

kiroiv said:
I have a serious unresponsive issue on my Xoom when charging. I've tried several different chargers, (all from Motorola) with no luck. Unfortunately all the ones I tried where at my house so I'm not sure if its a wiring issue in my house.
I also have a similar problem on my Droid Razr so I'm starting to think its definitely the wiring.
Anyone know about this issue or have any recommendations?
Click to expand...
Click to collapse
Thats weird.. i owned xoom n droid razr too but i dun have any iissue

It could be a wiring issue (try another house, I guess), but a lot of devices are like that where the touch screen stops being as responsive when it's on a wall charger.

Touch cover issues?

After having a duff sd slot on my original surface my replacement arrived today, all good, left it doing updates and installing my apps for a while, all was well, or so I thought..
The keyboard is now not responding after a while, connected, works, close the cover, open it again, screen doesn't come on, press power button screen comes on, keyboard not responding, close cover, screen stays active, disconnect keyboard and reconnect it and it works again..
Had a quick look through the settings and there's nothing I can see that relates to keyboard sleep or power management..
Tried it on my old surface and its fine :\
Wondering if anyone has seen or heard anything similar, otherwise another tech chat with support tomorrow...

You might want to try rebooting the new Surface, and make sure the connection port where the cover links up is clean, but otherwise I don't know what would cause that problem. I've had cases where the cover wasn't recognized, but disconnecting and reconnecting it fixed that.

Only issue I ever have with the cover is if I remove it while the tablet is sleeping and when it wakes it thinks it is still attached.

It's been rebooted many times so dont think its that, had a poke thru device managet last night and looked for power saving stuff but nothing relavant..
Connectors are all clean and it works in the old Surface.. :/
Maybe the keyboards just missing the tablet it came with lol

Still nothing, hard reset, power offs nothing, have now noticed that the edges of the touch cover are peeling apart at the corners so might get this replaced as well, so far the support guys have been spot on, the device however while really promising just lacks finish :\

Trig0r said:
Still nothing, hard reset, power offs nothing, have now noticed that the edges of the touch cover are peeling apart at the corners so might get this replaced as well, so far the support guys have been spot on, the device however while really promising just lacks finish :\
Click to expand...
Click to collapse
Two options....
1. Return the cover..
2. Bring your surface bad cover to Microsoft store and let them figure out what is wrong...
I am very happy with my surface and the touch cover...

I have a 5 second delay sometimes when opening and closing. Otherwise, ref let msft know

truffle1234 said:
Two options....
1. Return the cover..
2. Bring your surface bad cover to Microsoft store and let them figure out what is wrong...
I am very happy with my surface and the touch cover...
Click to expand...
Click to collapse
I've had 2 bad units now, don't think its the cover as it worked on the first surface before I returned it.
I'll get onto surface support when they are back, I don't seem to be able to raise a ticket on the new unit, touch cover might end up going back as well at this rate...
Sent from my HTC Desire HD using Tapatalk 2

I've had the same issue with the type cover. Sometimes it works fine throughout. Other times it seems to fall asleep until an adjustment is made.
I've caught the connection off by a few millimeters at times (although that doesn't explain why the initial connection would work), but you can look and check for that as well.
From now on I'll simply restart from the Power button without removing the connection to see if it's really a 100% mechanical issue.

Ha I've had all of these problems you've named

On Live Chat with support now, the MS forums seem to suggest a reset, I've tried it a few times tho, will see if they will fire out another cover..

Right, cover is being swapped out on AR as well now, hope they hurry up and take the hold off the card though, the hold is for more than it would cost to actually buy the bloody thing new again..

[Q] TF700 Dropped Display Issues

I dropped my TF700 with the dock and it fell on its back(tablet). It closed shut and when i tried to restart it i do not see any display
later the display comes up but in jagged lines half black and half display, the touch doesn't seem to respond , i can see that it boots
and i can access it on my computer all the files and entire system but i cannot do anything with touchscreen and lcd. after repeated touching
it has the touch sound that comes not very often.
I opened the screen and i see no physical damage to the screen. Is there an inverter board of LCD that might have gone bad due to that
or has any one faced this problem , so that even if i have to order a replacment part i know which one to order first i thought of
ordering the LCD + Touchpanel but it looks like i am doubting that the LCD has gone bad.
Can anyone please help if they have faced this issue ??

[Q] White screen of death?

Has anyone encountered the following issues with their SHIELD?
Mine was working just fine after updating to 4.3 and rooting with CWM. I performed multiple reboots in this configuration, played games, etc. - everything was fine.
I had a pretty busy weekend so didn't touch the SHIELD at all for a few days. When I got back:
When I opened it up, I saw the screen backlight turn on but nothing displayed on the screen. The SHIELD button was glowing green.
I long-pressed the SHIELD button to turn off the device. When I turn it back on, I get a white screen that is dark around the edges (mostly vignetting around the corners). The brightness of the screen here and degree of vignetting seem to change every time I try and turn on the device.
If I enter fastboot mode via the key combo, the same thing happens - white vignetted screen. The device DOES appear to enumerate as a fastboot device on my PC in this configuration.
At one point I figured it might be due to a low battery, so plugged it into the charger. 30 minutes later, when I opened the lid, I actually came up to a launcher screen with 65% battery.
However, after closing the lid and reopening it again - black screen again, with the "white vignette of death" coming back if I reboot.
Has anyone else seen similar behavior? Searching results in no one complaining about a white screen like this, at least not on this device.

Screen of Death
This just happened to me today. Did you find a fix for this problem?
Entropy512 said:
Has anyone encountered the following issues with their SHIELD?
Mine was working just fine after updating to 4.3 and rooting with CWM. I performed multiple reboots in this configuration, played games, etc. - everything was fine.
I had a pretty busy weekend so didn't touch the SHIELD at all for a few days. When I got back:
When I opened it up, I saw the screen backlight turn on but nothing displayed on the screen. The SHIELD button was glowing green.
I long-pressed the SHIELD button to turn off the device. When I turn it back on, I get a white screen that is dark around the edges (mostly vignetting around the corners). The brightness of the screen here and degree of vignetting seem to change every time I try and turn on the device.
If I enter fastboot mode via the key combo, the same thing happens - white vignetted screen. The device DOES appear to enumerate as a fastboot device on my PC in this configuration.
At one point I figured it might be due to a low battery, so plugged it into the charger. 30 minutes later, when I opened the lid, I actually came up to a launcher screen with 65% battery.
However, after closing the lid and reopening it again - black screen again, with the "white vignette of death" coming back if I reboot.
Has anyone else seen similar behavior? Searching results in no one complaining about a white screen like this, at least not on this device.
Click to expand...
Click to collapse

Might be just bad luck for me.....
nmerc001 said:
This just happened to me today. Did you find a fix for this problem?
Click to expand...
Click to collapse
So ive already gotten two shields and they both got the same effect. my guess is the ribbon cable when you open and close the screen, is wearing off? because when i open my shield in a certain way, it works... when i open it at around 100 degrees or open correctly then tilt it forward, the screen tears and slowly shows the white screen. I do admit that i open and close the screen more than i should, but i do it carefully. Ill look over at the ifixit site to see how the cable is connected to the board.

This is what has me worried about buying a shield, the ribbon cable, did you confirmed this was the problem?

DJNinja1625 said:
So ive already gotten two shields and they both got the same effect. my guess is the ribbon cable when you open and close the screen, is wearing off? because when i open my shield in a certain way, it works... when i open it at around 100 degrees or open correctly then tilt it forward, the screen tears and slowly shows the white screen. I do admit that i open and close the screen more than i should, but i do it carefully. Ill look over at the ifixit site to see how the cable is connected to the board.
Click to expand...
Click to collapse
I am a tech by trade and bought one of ebay for 40 bucks cuz it would not power up so the guy claimed. After getting it I found the issue was actually the display was not coming on and once it did. Then went out in a few moments. Connect it to HDMI and the unit runs all day of you want to be cabled. ]
So I tore it down and found that the issue is the flex cable. The problem is that the flex cable is part of the LCD and you cannot just replace the cable. Also since the unit is so new there are no sources as of yet to by the LCD from.
So if you have this issue I suggest just holding out till a source of LCD's at hopefully a reasonable price become available.

So it's soldered to the screen and not replacable right?

nex86 said:
So it's soldered to the screen and not replacable right?
Click to expand...
Click to collapse
That is correct.. The flex cable is actually an integral part of the display and even has much of the driver circuitry placed right on it at the LCD. In the business we call it a flex circuit since it is a flexible circuit board and not just a cable.

I pretty much know what you mean.
On my old Archos Gamepad I ripped the flex that connected the left side of the controler to the logic board by accident.
It was a pain in the ass to fix it by soldering seperate wires, I guess it's impossible to do this with the display connection in the Shield.

nex86 said:
I pretty much know what you mean.
On my old Archos Gamepad I ripped the flex that connected the left side of the controler to the logic board by accident.
It was a pain in the ass to fix it by soldering seperate wires, I guess it's impossible to do this with the display connection in the Shield.
Click to expand...
Click to collapse
Might be possible if you used 32 gauge magnet wire. It is enamel coated so it won't short, but it to will break over time.

hi, flash factory image
Sent from my LT25i using XDA Free mobile app

dragxdk said:
hi, flash factory image
Sent from my LT25i using XDA Free mobile app
Click to expand...
Click to collapse
How are you supposed to flash a factory image when the screen won't let you see what you are doing? When you are in the bootloader screen the HDMI drivers are not loaded yet so not even hooking it to an external monitor will work. You might want to fully read and understand the problem next time before offering advice.:good:

fastboot tells you if you were sucessful or not.
just for relocking the bootloader you have to do some button combinations, you can look up some tutorial videos to see what you have to press.

nex86 said:
fastboot tells you if you were sucessful or not.
just for relocking the bootloader you have to do some button combinations, you can look up some tutorial videos to see what you have to press.
Click to expand...
Click to collapse
Even still, it is not a software problem that causes this. I know because if I move my display to a certain angle it will start to work sometimes. A software issue would not cause this. I also have taken my apart since I am a tech and can actually see the traces in the flex cable that have broken..
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.

Solarenemy68 said:
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.
Click to expand...
Click to collapse
I agree, they used flex in the Nintendo DS and 3Ds as well, but they don't break that fast.
I find it still better if they have used recular cables like what they use for Laptops.

Solarenemy68 said:
Even still, it is not a software problem that causes this. I know because if I move my display to a certain angle it will start to work sometimes. A software issue would not cause this. I also have taken my apart since I am a tech and can actually see the traces in the flex cable that have broken..
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.
Click to expand...
Click to collapse
What you are saying is the EXACT same thing that happened to my SHIELD. I can tell its a hardware problem because when I tilted my screen it would work, and sometimes it wouldn't. Now my SHIELD's display does not even show any signs of picture. HDMI still works, however. Like one of the previous posts said, there is not a screen available for purchase, so my next step is NVIDIA customer support. Maybe if they would sell these screens, I wouldn't even have to have a warranty claim. sigh.

White screen of death?
yes mine too same as
i tried connecting my via HDMI from power cable to large HDMI to plug it works fine on my galaxy tab
thought id be clever try it on nvidia shield never worked sould of bought mini HDMI so now White screen of death
i cant get into recovery or anything i had this on charge for 12 hrs yesterday still no green button on charge only orange .. i too cant find anything on internet to help with this White screen of death situation

Solarenemy68 said:
How are you supposed to flash a factory image when the screen won't let you see what you are doing? When you are in the bootloader screen the HDMI drivers are not loaded yet so not even hooking it to an external monitor will work. You might want to fully read and understand the problem next time before offering advice.:good:
Click to expand...
Click to collapse
This. I'm having a similar issue. My wife's SHIELD has an unresponsive touch screen. So I tried to flash the factory image (It was never rooted to begin with) and I got the white screen issue when in the bootloader screen. I have to keep restarting it to get the screen to show up as normal when the device boots to the home screen. But the bootloader screen is still blank and white. I was able to watch a video and mimick the steps to flash the factory image but that did not fix the issue. It's definitely a hardware issue. I live in Cincinnati OH, anywhere I can go to have this fixed? I have a portable myself and i know this is going to happen to mine soon.

[Q] is the screen of the I9105 the same as I9100 is?

Well the unfortunate happened and my lcd is dead. How do I know that the its just the lcd? the phone itself works beside the screen. I was suprized to see that the soft keys light up when I tried to see if it has any life left. had face lock on so I was able to get into it and hear the max volume bump noise. Tried to perform a blind call by pressing the screen in places that I think i should be able to make a call and whatdo you know? it calls! so I sat down to investigate more and i was able to get the adb running. problem was that with 4.2 you need to allow adb connection by clinking on a prompt on the thing it self to authorise it. so after a couple of minutes of just poking the screen I got adb running so I was able to screen cast it. :victory: couple minutes later I got Teamviewer working on it so I was able to controll it that way.
Anyway so much for that story. so I dropped it while walking a dog and it was in a leather case so atleast it landed somewhat softer. the screen does not seen to be cracked, the touch screen/digitizer still works, but no light can be seen from the screen.
I did took it apart cause I have no warranty. Sadly I'm no expert so I can't say whats wrong with the insides, but the lcd/digitizer connector looked to be sitting tight in its place. I did took the motherboard out and put it back after a quick look. Checked all the ribbon cables, everyting seemed to be sitting tight. So no luck there and I'm assuming that the lcd is just dead. Currently I have it in blind mode so it speaks out everyting I press
I was looking for some screen replacements and noticed that there is quite the difference between the I9100 and the I9105 screen prices. BUT the I9105 is basically I1900 with a different chipset? So I'm wondering if the screen form/chasi/cable placement is the same? if so than the prices are just obviously jacked up for the newer model.
P.S. writing this on a tablet and I type like a moron on this thing so sorry if your grammar nazi inside you flickers while reading this

Bump, seriously? noboby?