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[Q] "squares" signs on the Xoom screen?

Hey everyone,
I just noticed something weird on the screen of my xoom (with the screen off it's much more visible). I can see some strange "squares" filling the whole screen when looking at it from a low angle and I can't remember if it was there since I got th device... so I don't know wheter it's normal or not. Do you see such signs on your xoom too?? Or should I ask for a replacing unit? Mmm.
What I see looks slightly like this: h**p://ny-image0.etsy.com/il_170x135.214590012.jpg (sorry, can't post external links yet)
I hope someone can help me
Thanks!
Yuvi

I havnt seen your picture but does it look like its image, as in displayed on the pixels or physical. It could st be the mesh of te touch panel, for e.g. on my desire I can see a diamond shaped mesh in sun light. Can't see anything on my xoom screen though, but its got the crappy factory screen cover on still.
Macbots drool as I XOOM through the Galaxy to my hearts Desire on the back of a Droid.

Yeah it's there on mine too, I also noticed it when I first got it. I'm not 100% sure what it is, but I'm assuming it's related to the capacitive screen.

Its the touch screen digitizer.
Sent from my SPH-D700 using XDA Premium App

Kcarpenter said:
Its the touch screen digitizer.
Click to expand...
Click to collapse
Thanks for the info. Do you think then that it's normal that it's visible?
I searched around and found this link h**p://ezinearticles.com/?Touchscreen-Digitizer---Symptoms-and-Cheap-Replacements&id=6047548 where it says:
Usually, the digitizer is not visible unless the screen has been damaged or cracked.
Click to expand...
Click to collapse
mmm....so maybe I should try to get a replacement device? (
Yuvi

yuvidroid said:
Thanks for the info. Do you think then that it's normal that it's visible?
I searched around and found this link h**p://ezinearticles.com/?Touchscreen-Digitizer---Symptoms-and-Cheap-Replacements&id=6047548 where it says:
mmm....so maybe I should try to get a replacement device? (
Yuvi
Click to expand...
Click to collapse
It's normal that you should see a glint of it in light, don't worry about it, nothing wrong with it unless u can see it straight on in any light.

alias_neo said:
It's normal that you should see a glint of it in light, don't worry about it, nothing wrong with it unless u can see it straight on in any light.
Click to expand...
Click to collapse
I can see it pretty easily in my room without any particular/strong light...even when the screen is on it's quite visible. Grrrrrrrrr

yuvidroid said:
I can see it pretty easily in my room without any particular/strong light...even when the screen is on it's quite visible. Grrrrrrrrr
Click to expand...
Click to collapse
Go exchange it for a new one

We have 4 Xoom's in our office and you can see it on all of them when the screen is off - and the light is on. But we are software developers, we live in the dark so it's hard to see most of the time.

Common Problems with tf300

I'm planning on buying this tablet soon and I just wanted to know what I should test out on the tablet first to still be eligible for returns if ever something is wrong. So what are some problems that usually occur with the tf300 so that I can test it out as soon as possible? And what are the usual things I should look out for? By the way, I'll be getting the one bundled the keyboard.
Another question, with the white tf300, does dirt get stuck easily on the back of the tab because of the circular texture? Thanks
Edit: In simpler terms, can you write down the common problems with the tf300 for us to look after for?

Mine had a slightly loose back-cover and made a sound when pressed firmly on the sides. Although most people probably won't be bother by it.
I haven't had any other "problems" with it, but i would suggest checking the screen for dead pixels and if the touchscreen functions properly.
Also search through the forum here for people reporting problems and check for those.

Not sure if anyone else has this issue but the screen appears to register touch before you actually touch the screen, it's only when your finger is extremely close to touching thescreen that this occurs ( maybe mine has a fault or I am too electrically charged :cyclops: ) .. Also I put on a wet type screen protector and thought my screen was faulty but found out later it can take a day or so for the screen protector to settle in ?
Works fine now though...

chriwu said:
Mine had a slightly loose back-cover and made a sound when pressed firmly on the sides. Although most people probably won't be bother by it.
I haven't had any other "problems" with it, but i would suggest checking the screen for dead pixels and if the touchscreen functions properly.
Also search through the forum here for people reporting problems and check for those.
Click to expand...
Click to collapse
Regarding the cover, does dirt get stuck easily when you slide your fingers around the back cover?

o0o.paw said:
Not sure if anyone else has this issue but the screen appears to register touch before you actually touch the screen, it's only when your finger is extremely close to touching thescreen that this occurs ( maybe mine has a fault or I am too electrically charged :cyclops: ) .. Also I put on a wet type screen protector and thought my screen was faulty but found out later it can take a day or so for the screen protector to settle in ?
Works fine now though...
Click to expand...
Click to collapse
I think the touch screen problem is normal from time to time since that happens to my phone as well at times.
Are wet screen protectors too thick to be able to dock the tablet? I read a couple of users had trouble docking. I was thinking of getting the acase screen protector just to be safe since it's dry.

Another thing to watch out for is software related. Many of the TF300s, mine included, have invalid serial numbers. They can't get automatic updates, use the Asus device locator, or validate registration on the Asus webpage.
Hope this helps,
Dave

CodeLion said:
Another thing to watch out for is software related. Many of the TF300s, mine included, have invalid serial numbers. They can't get automatic updates, use the Asus device locator, or validate registration on the Asus webpage.
Hope this helps,
Dave
Click to expand...
Click to collapse
How did you get an invalid serial?

I just returned my TF300 16 GB to Best Buy because after 2 months the touchscreen went haywire...It registered all sorts of touches I never made. I'm hoping its just a manufacturing issue and not a design issue. I normally keep it docked and hope that's not the cause.
Props to Best Buy who made the exchange very painless...for $20 more they gave me the 32 GB despite being past the return date.:laugh::good:

Ulric099 said:
Regarding the cover, does dirt get stuck easily when you slide your fingers around the back cover?
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Click to collapse
Not that I've noticed.
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app

It comes that way. It would appear Asus' factories failed to register quite a large percentage of the tablets with the update server.
One way to check is to use the Asus device locator. If it refuses to let you use your serial number, then yours is one of the invalid ones.
Dave
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

Screen Disassembly

Hi,
had anybody changed his Screen on a A700 ?
I can't find any guide and I'd prefer to prepare it before disassemblying it.
My screen have been broken, but the LCD is ok, then I'm buying just a digitizer.
If you have any clue or hint to provide, thanks in advance.

Hi laloutre!
That sucks to hear.
Fortunately, I did some research and found the thing you'd want.
On this page you'll find a video in which is explained on how to open up the tablet in big steps.
In the service guide you'll find a complete teardown specifically for the A700, starting at page 5-5.
You can download the service guide from a nice guy who didn't mind to upload it, so please thank him:
http://forum.xda-developers.com/showpost.php?p=29643591&postcount=6
When you are done replacing the thing, I'd be happy to hear how it went.
Good luck!
Edit:
------ Removed content: ------
I tried to find such a guide, but there are not so many good resources out there.
Since the A510 is practically the same, but with a less awesome screen (I wonder if you could change the screen of the A510 to a 1900x1200 screen (A700's screen)), you could use that guide to change it.
I read that the LCD and digitalizer are sticked to each other:
- Fused LCD and front panel: The A510’s LCD screen is permanently joined to the front panel with what appears to be a form of thermoplastic staking. This process eliminates the need for screws, but makes it nearly impossible to replace one without replacing the other.
Click to expand...
Click to collapse
(Source: click here)
Of course, this might be different on the A700, but I don't expect it to be.

Thanks for the input.
Your last point scares me but I keep some hope as the front screen is sold separately.
For now I'm waiting a few weeks I guess because the screen will come directly from China...
Be sure I'm gonna post my results when the process will be finished.
In the meanwhile, I'm gonna Google again and again...
See ya
Sent from my GT-N7100 using xda premium

[Q] Crazy screen !

i got a tf300 from ebay , with a broken digitizer opened it up to see the model (of the digitizer) and left it with out a one for the meanwhile
i also ordered a keyboard and a digitizer ( 5158N) , the key board got to me first .
i connected it so ill be able to use the tablet
but the screen seems as some one is touching it all over all the time !
i dont know what to do ,
it open apps on its own , move screens and so on ...
any ideas ?

natifr said:
i got a tf300 from ebay , with a broken digitizer opened it up to see the model (of the digitizer) and left it with out a one for the meanwhile
i also ordered a keyboard and a digitizer ( 5158N) , the key board got to me first .
i connected it so ill be able to use the tablet
but the screen seems as some one is touching it all over all the time !
i dont know what to do ,
it open apps on its own , move screens and so on ...
any ideas ?
Click to expand...
Click to collapse
Hehe, that did happen to some of us. In my case, I first flashed the 4820 TS firmware. If that doesn't stop the mad behaviour, then carefully remove the TS ribbons from the board, and tape them on top of the connectors, making sure they don't touch any conducting metal parts.

graphdarnell said:
Hehe, that did happen to some of us. In my case, I first flashed the 4820 TS firmware. If that doesn't stop the mad behaviour, then carefully remove the TS ribbons from the board, and tape them on top of the connectors, making sure they don't touch any conducting metal parts.
Click to expand...
Click to collapse
so from what you say i need to root it first , right ?

so i open it up and toke out the part thats connect the main board and the TS ( i dont have the TS anyway)
and now im using it with the keyboard and its find !!!
so now i want to know what thus it mean ?
that part is broken ?
it dosnt work w/o a tuch screen connected ?

natifr said:
so i open it up and toke out the part thats connect the main board and the TS ( i dont have the TS anyway)
and now im using it with the keyboard and its find !!!
so now i want to know what thus it mean ?
that part is broken ?
it dosnt work w/o a tuch screen connected ?
Click to expand...
Click to collapse
Nothing is broken apart from the TS. But when you have it connected, it acts crazy. Replace it and it should be fine.

natifr said:
so i open it up and toke out the part thats connect the main board and the TS ( i dont have the TS anyway)
and now im using it with the keyboard and its find !!!
so now i want to know what thus it mean ?
that part is broken ?
it dosnt work w/o a tuch screen connected ?
Click to expand...
Click to collapse
You do know you can use a G01 which is much much cheaper right? Mine was a 5158N originally and I got my replacement G01 for 42 USD.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

I get the phantom touches constantly, so it's just bad ribbons and taping them will definitely stop it?
Sent from my ASUS Transformer Pad TF300T using XDA Premium 4 mobile app

MrKite4 said:
I get the phantom touches constantly, so it's just bad ribbons and taping them will definitely stop it?
Sent from my ASUS Transformer Pad TF300T using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Not sure what the question is, but taping the ribbons to the connectors is just a stopgap measure when you for some reason must keep the broken digitizer on (as in waiting for the replacement to come in the mail). It might work or not (does in my case, where if ghost touches hit, all I need do is reboot). So I wouldn't say "definitely." What's your situation?

graphdarnell said:
Not sure what the question is, but taping the ribbons to the connectors is just a stopgap measure when you for some reason must keep the broken digitizer on (as in waiting for the replacement to come in the mail). It might work or not (does in my case, where if ghost touches hit, all I need do is reboot). So I wouldn't say "definitely." What's your situation?
Click to expand...
Click to collapse
sometimes the screen goes crazy and starts zooming in and touching areas when I'm not touching the screen, when I put it back in to sleep and then unlock it again its fine, and then also somewhere in the upper right portion of the screen it's send like out didn't react to the touch so well especially when I'm scrolling and hit that part of the screen it'll stop then either act as if I did a long press or act as if I clicked on the browser url.
Sent from my LG-E980 using XDA Premium 4 mobile app

MrKite4 said:
sometimes the screen goes crazy and starts zooming in and touching areas when I'm not touching the screen, when I put it back in to sleep and then unlock it again its fine, and then also somewhere in the upper right portion of the screen it's send like out didn't react to the touch so well especially when I'm scrolling and hit that part of the screen it'll stop then either act as if I did a long press or act as if I clicked on the browser url.
Sent from my LG-E980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
If you have an undamaged digitizer that acts on its own, you're not alone. Most of the time, the remedy is in reflashing the TS frmware. You need to know what type it is so you can select the correct firmware though. Pop the back cover open and look. Check this thread for troubleshooting tips.

graphdarnell said:
If you have an undamaged digitizer that acts on its own, you're not alone. Most of the time, the remedy is in reflashing the TS frmware. You need to know what type it is so you can select the correct firmware though. Pop the back cover open and look. Check this thread for troubleshooting tips.
Click to expand...
Click to collapse
Would be nice if someone has any NEW light to this matter "Crazy screen"
Me too have this problem and been reading everything in here to remedy that problem.
that 50 page long thread has gone to more questions than answers.
it seems that replacing the TS and the board and the 4820 firmware still gives the "Crazy screen"
I've seen even a brand new TF300T without any visible defect that has the same fault.
has anybody found other firmware to TF300T than 4820.. maybe it isnt 100% compatible with all cheep china TS?

unob said:
Would be nice if someone has any NEW light to this matter "Crazy screen"
Me too have this problem and been reading everything in here to remedy that problem.
that 50 page long thread has gone to more questions than answers.
it seems that replacing the TS and the board and the 4820 firmware still gives the "Crazy screen"
I've seen even a brand new TF300T without any visible defect that has the same fault.
has anybody found other firmware to TF300T than 4820.. maybe it isnt 100% compatible with all cheep china TS?
Click to expand...
Click to collapse
I ordered a cheap g01 for 43 bucks. I then flashed 4820 firmware. No problem at all and its more responsive than the original 5158n.
The boards do also go bad apparently. You can pick one up for 15 usd on ebay. Regardless what version the board came from, you will have to flash.
I recommend every one with issues go with the g01 as its firmware is readily available and actually has a proven track record of working. Its also the cheapest version available ( mine was also an original Asus part for that price )
Just make sure you have root access first.
Sent from my SGH-T889 using xda app-developers app

pyraxiate said:
I ordered a cheap g01 for 43 bucks. I then flashed 4820 firmware. No problem at all and its more responsive than the original 5158n.
The boards do also go bad apparently. You can pick one up for 15 usd on ebay. Regardless what version the board came from, you will have to flash.
I recommend every one with issues go with the g01 as its firmware is readily available and actually has a proven track record of working. Its also the cheapest version available ( mine was also an original Asus part for that price )
Just make sure you have root access first.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Glad to hear happy stories.. too little of them here
i replaced mine TS g01 without changing firmware (i had 4822).
i ran it about 9-10 hours straight and no glitch at all before it began to ghosting.
and then flashed the TS firmware to 4820 with no difference (still ghosting)
i think people have triggered the same problem when replace their TS. (it wasn´t "the cap" problem) and will not necessarily engage immediately after the replacement.
it's really a ghost story.

unob said:
Glad to hear happy stories.. too little of them here
i replaced mine TS g01 without changing firmware (i had 4822).
i ran it about 9-10 hours straight and no glitch at all before it began to ghosting.
and then flashed the TS firmware to 4820 with no difference (still ghosting)
i think people have triggered the same problem when replace their TS. (it wasn´t "the cap" problem) and will not necessarily engage immediately after the replacement.
it's really a ghost story.
Click to expand...
Click to collapse
In that case its either a bad board, or a bad digitizer. There were reports of new screens that looked intact actually having micro fractures that dont act up until the unit had been on and running ( heating up ). I'd try the TS / Micro SD daughterboard first though as its cheaper and easy to access. Worst case scenario is you get a spare or see if someone here wants to pick it up from you. For $15 its worth a shot.
Heres the exact OEM G01 I ordered ( It does have the Asus Logo )
http://www.ebay.com/itm/360697697608?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I cant find any cheap boards on ebay right now but they are frequently listed in the 15-20$ range. You will just have to keep your eyes peeled I guess.

pyraxiate said:
In that case its either a bad board, or a bad digitizer. There were reports of new screens that looked intact actually having micro fractures that dont act up until the unit had been on and running ( heating up ). I'd try the TS / Micro SD daughterboard first though as its cheaper and easy to access. Worst case scenario is you get a spare or see if someone here wants to pick it up from you. For $15 its worth a shot.
Heres the exact OEM G01 I ordered ( It does have the Asus Logo )
http://www.ebay.com/itm/360697697608?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I cant find any cheap boards on ebay right now but they are frequently listed in the 15-20$ range. You will just have to keep your eyes peeled I guess.
Click to expand...
Click to collapse
Thanx for your help. i got lucky coz my seller agrees to send me a new TS and it has been on the road for 2 weeks now...
meanwhile i have found too many people having the same problem so my faith is failing
i will report back.

unob said:
Thanx for your help. i got lucky coz my seller agrees to send me a new TS and it has been on the road for 2 weeks now...
meanwhile i have found too many people having the same problem so my faith is failing
i will report back.
Click to expand...
Click to collapse
Sounds like a plan Hopefully it's just a bad digitizer then.
Sent from my SGH-T889 using xda app-developers app

I was on CM10.2, So I change to asus stock rom and than I lost my root.
How do I root my TF300T without touch screen?
I am on 10.6.1.27.1 with TWRP 2.5.0.0 and I have a docking station.

mwvarela said:
I was on CM10.2, So I change to asus stock rom and than I lost my root.
How do I root my TF300T without touch screen?
I am on 10.6.1.27.1 with TWRP 2.5.0.0 and I have a docking station.
Click to expand...
Click to collapse
i did it with cheap "OTG Host Kit Adapter tf300t" from ebay and usb mouse.. easy as with working TS.

here is the report.
Now i have replaced the new TS. and the Ghost Story is still there?
But it is not random anymore. Now it is only one dot ghosting all the time? (top right corner). I assembled it twice but no avail.
by the way, they sent me "White label" version instead of G01 and i think it worked better (less ghosting).
interesting to hear opinions?

pyraxiate said:
Sounds like a plan Hopefully it's just a bad digitizer then.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
sorry to reply like this.. but i thought maybe you respond if it is to your own response.
hope someone has some light to my discovery.??
only one dot left now .. any suggestions ??

[Q] Screen

Hello.
I reccently bought a NVIDIA Shield Tablet, and after 2 days i had it replaced becase the screen kind of had a "brownish" color tone on one of the bezels. The new one they gave me does not have that problem but the screen is different. When turned off you can see kind of a squared patern on it, and when on you can see that patern on some viewing angles. Is this possible?
Hope to get a quick awnser so i can present this complaint on the seller.

I'm pretty sure you're talking about the digitizer matrix. Is it really visible under bright light at about a 45°angle. Lots of little horizontal striations as well reflecting off the glass?

jaredmorgs said:
I'm pretty sure you're talking about the digitizer matrix. Is it really visible under bright light at about a 45°angle. Lots of little horizontal striations as well reflecting off the glass?
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Click to collapse
That's it. But the first one i got, i'm 99% sure it didn't had that. I believe it was a more recent model because it already came with lollypop instaled.
But tell me is it normal that screen on the Shield?
Thanks

PedroPecos said:
That's it. But the first one i got, i'm 99% sure it didn't had that. I believe it was a more recent model because it already came with lollypop instaled.
But tell me is it normal that screen on the Shield?
Thanks
Click to expand...
Click to collapse
Yeah it's like that on my LTE. And my Nexus 5.

jaredmorgs said:
Yeah it's like that on my LTE. And my Nexus 5.
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Click to collapse
But still kind of strange that the previous one didn't have or at least is was not noticeable?!?
It's the first time i see that on a tablet or smartphone.