[Q] Tf300t Ghost Touches - Transformer TF300T Q&A, Help & Troubleshooting

Hello there,
I've had several issues with my tf300t that really annoyed me. Well, first off, all of a sudden the touchscreen stopped working. I tried a hard reset, then a cold boot, no success. Then i had it sent to be fixed. After one entire month i got my tf300t back and verified if everything was back to normal. The touchscreen was working properly but after just one hour i noticed that i have ghost touches once again. I know what ghost touches are, i did a lot of research.
I had ghost touches before i had my tf300t sent to be fixed. Is it really a hardware issue? Because theese annoying ghost touches stop everytime after i do a cold boot. Sadly, they come back after a while, mostly after i turn my wifi on. Everything goes haywire.
What should i do? Send it back? The thing is that i rooted my tf300t and this kinda voids my warranty.
Sometimes i even experiment dead zones on my touchscreen. They go away everytime after i do a cold boot but this thing is really starting to piss me off. How did you guys manage to get rid of theese ghost touches?

You could try to update the digitizer firmware. Check out the threads about digitizer replacement. Basically you just need to run the touch_fw_update command. Either with the firmware already installed or download the 4820 version. Could also be a loose cable. Before messing with any cables, turn off your service switch.

I have a nexus5 as well as a TF300T and have noticed on the N5 that when charging you can get ghost images its like the digitizer goes a little mental when charging. It is a known bug (various reports to google) and something they are working on. Could the TF300T have a similar bug?

Related

[Q] TF101 Screen won't turn on

Hi everyone, this is my first post here. Thanks in advance for any help that you folks can provide.
I've had the TF101 for about six months now, and it's been fine. I was using it yesterday on the train and all was good, but when I got home and took it out of my bag it didn't seem to start up. I thought it might have been a battery issue, so I let it charge overnight. Tried starting it up this morning and I got the same results. So I started looking in to other issues.
The tablet is definitely starting, adb will recognize it in its list of devices, and if I plug it in to my tv or desktop monitor w/ HDMI, I can see and interact w/ the Transformer UI (of course this is kind of painful since I have to do some guessing about where to put my fingers).
I had rooted it using rebound821's scripts and directions here, so tried an unroot to see if that was the problem. I ended up with the same results.
Does anyone here have any insights as to what the problem may be? I'm hoping to avoid sending it back to ASUS, so I'm fine w/ opening it up to look for loose cables.
So I thought that brightness might be the problem. Maybe it was set to 0 and I just wasn't seeing anything on my screen. Sadly, that doesn't seem to be the case.
I tried setting brightness at the path below to to 0, 50, 100.
/sys/devices/platform/pwm-backlight/backlight/pwm-backlight/brightness
Still no luck.
Has anyone encountered anything remotely similar to this (even if similar is just a dead screen)?
There have been others with dead screens reporting what you are, at least I have read a few reports, I think they just had to get them RMA'd, I don't recall anyone 'fixing' a dead screen, especially if you still have adb and touch working then the screen itself and backlight seem to have broken completely- some have reported the backlight dying and thinking the screen was broken, but it was just the backlight (I guess in bright light they could see pixels working, but couldn't make out what was on the screen without the backlight). I still think they had to get it repaired either by Asus or by someone who was capable of doing internal repairs with replacement parts..sorry for your luck
Looks like I'll have to send it back. I took it into the brightest light I could find and couldn't see anything at all. Guess it's the screen and maybe the backlight too. I'm pretty disappointed this happened, the only thing I can think of is that the bag I had it in was hanging from the chair in front of me on the train and it was swaying a little, and that shouldn't be enough to dislodge a connection. Either that or just some freak hardware failure. Still, I guess it's not that common of an occurrence. Thanks for the reply, I'll slink off and try to get in touch w/ Asus now.
I have experience same
My TF101 broke in the same way, screen blank. Conected to tv I`ve got image digital touch work. I shut down my TF101 normaly and screen never go back to live again. Tablet was in a protective bag (when I trave by car), just no reason for not working ( no problem at screen, previously, screen perfect - no dead pixels)
Did you guys get this resolved? I had the EXACT same thing happen yesterday. Was working just fine. Put it in its sleeve, into a protective case, into a briefcase, got home and dead.
HDMI works. I tried to call Asus but they say i'm out of warranty.
Thanks in advance.
Must be something wrong with the connections that it decays over time. I've had mine since October last year and its been fine except for today when I brought it home it wouldn't work.
I was able to fix it though. I held it vertically with the bottom edge down and tapped it firmly on my desk a couple of times. The screen came back on. There is a strong possibility that this will happen again and my tap fix won't work, but it's working at the moment
Asus Transformer screen
elementalfire23 said:
Must be something wrong with the connections that it decays over time. I've had mine since October last year and its been fine except for today when I brought it home it wouldn't work.
I was able to fix it though. I held it vertically with the bottom edge down and tapped it firmly on my desk a couple of times. The screen came back on. There is a strong possibility that this will happen again and my tap fix won't work, but it's working at the moment
Click to expand...
Click to collapse
I had exactly the same problem discussed in this thread. I was also able to bring the screen of my TF101G to life by tapping it firmly on my desk with the bottom edge. It works for now. But it is certainly disconcerting to know that some connection in this rather expensive gadget are loose and all this can happen again. I guess I will not carry my transformer around any more - just leave it at home...
spokey said:
My TF101 broke in the same way, screen blank. Conected to tv I`ve got image digital touch work. I shut down my TF101 normaly and screen never go back to live again. Tablet was in a protective bag (when I trave by car), just no reason for not working ( no problem at screen, previously, screen perfect - no dead pixels)
Click to expand...
Click to collapse
Same problem here had my unlocked bootloader tf101 for awhile now, one of the first ones out... had a great life gave it to my girl when i got the transformer prime and the screen just went out yesterday, still goes in apx mode and still recognized by computer, screen just straight up died, think it's too late for a manufacture warranty, maybe ill look but think it's gonna be no dice... sucks obviously something in the design to make this happen to so many of them...
My TF101 appears to have a dead screen. I am rooted and running Revolver Custom Rom. When connected to my pc, I am able to recognize my device. My screen will not turn on so I cannot use recovery to go back to stock. I am set up to use ADB, however, I am not very knowledgable with ADB. I am convinced I have a bad screen and I am still under warranty. Is there a way to return the TF101 back to stock using ADB? If anyone can point me in the right direction, I can probably figure it out. Otherwise, I may just try and replace my screen and see how that works out. Thanks for the help.
My backlight died on Tuesday. Similar situation of working in the morning, headed into work with it in my bag, no brutal knocks or anything but one jolt just must of finished it off after a year and 2 weeks abuse (yes 2 weeks out of warrenty).
Going to attempt to take it apart this afternoon and play with the ribbon cable as reseating it has solved quite a few peoples problems.
Woo! It worked! Very happy chappy.
Sent from my SK17i using Tapatalk 2
Same thing happened too me, first time i sent it to service, but last time i opened it myself and pushed the connector for the screen thightly in place.. worked nicely
Sent from my Transformer TF101 using xda app-developers app
Screen goes derp
I don't know if I have the same problem or not.
Backstory: I own a Transformer TF101 that I got for my birthday from my girlfriend. It was meant for travel and bs'ing around at home. Took it into work and quickly realized that I could use this for work. That went over so well that the rest of the office became intrigued. Once these came on sale on groupon, the office manager went all in on 10. These are all refurbished transformers with docks.
They have all been handed out and I now have a transformer for home and work. Kind of nice...but I do a lot of site observation so using my personal transformer was a risk that I had to take all on my own (survived a 5' fall off of a parapet wall already).
The problem: From the first 5 minutes that I had the thing, the transformer screen went blank. I opened up google play to download a few apps that I could use for work. Scrolling down I saw some choppyness which I considered the processor/memory having issues loading everything on the screen. Before I knew it - boom blank screen. Rebooted and the loading screen stays on for 2 seconds before the screen goes blank. I can tell it's working because it plays a sound at start up. I can also tell the screen is lit up (it's like it's showing a grey screen because it can't show true black colors). If I hit the power button again it goes completely black. I hit the power button again and the screen flashes to the lock screen and immediately goes blank again. I could do this over and over and over again.
Anybody having the same problem? It's refurbished....I'm guessing apparently I got the dud.
I ran into pretty much the same problem. One morning, the tablet screen would just not turn on. Sometimes, it came on and immediately shutdown, but it is still on the "On" mode. Hit the power button again will bring it to the off mode. Toggle it one more time, sometimes, will turn on the screen a off again. I was able to get it back to work with a factory restore. However, it has the following problems.
1) As soon as I adjust the brightness, the screen will go off again. And there is nothing I can do to bring it back except another factory restore.
2) The screen will flicker (and sometimes produces some clicking sound) when charging with the screen on.
Looks like my TF101 is having same issue, screen gone off suddenly (hdmi shows up in TV fine)...I am going give a try on reseating the cable hoping it resolves the issue.
leonpr, is there some tips/things I have to make sure before attempting this. I found a guide here and another youtube video on this issue as a reference...
Thanks..
Screen won't turn on unless factory reset "fix"
My girlfriend has an ASUS TF101. If the brightness goes up to 60%, the screen is blanked (no backlight either) and the only way to get it to turn back on again is to hard reset. This coincidentally happened at the same time as an update from ASUS. After lots of Googling it does not appear to be related. I was hoping it was and installed several custom ROMS which all experienced the same issue.
As a temporary work around, until I get the guts & the money to be able to replace her tablet if I break it, I found and installed AutomateIt. I set a trigger so that when the screen is turned off, the brightness is set to 50%.
Why trigger when the screen is off instead of when the screen hits above 59%? If you have this same problem, hold the brightness and go all the way until the screen blanks and then still holding your finger on the screen, move it all the way to the left and you will notice that the screen did not come back on. Press the power button once to turn it off and then again to turn it on and you will see the screen at the lowest brightness setting.
So, with the trigger in place, if you accidentally (or one of your rotten kids intentionally:angel raises the brightness above the threshold, simply press the power once to turn off the screen and then press it again to turn the screen on.
Just a note, I ended up installing AutomateIt Pro, Available for $1.60 from the Play Market. The free version works fine, but my girlfriend has been struggling with this issue for a couple of months and after so many hard resets, the little app is more than worth the money.
Have you tried Power + Volume Down for 15 seconds, and then leaving it alone for one minute? It will cold boot. Try that and it may work. Just saying; Hope it will help
Sorry for the necro-bump but here's the actual solution.
Problem: The video cable inside the Transformer comes loose and just needs to be pushed back in.
I can't post a link since I don't have 10 posts yet so just search youtube for the following key words:
blank or no display issue on the asus transformer - fix
The user who posted the video is DoCWaSaBe
Tokyudo said:
Sorry for the necro-bump but here's the actual solution.
Problem: The video cable inside the Transformer comes loose and just needs to be pushed back in.
I can't post a link since I don't have 10 posts yet so just search youtube for the following key words:
blank or no display issue on the asus transformer - fix
The user who posted the video is DoCWaSaBe
Click to expand...
Click to collapse
Just fixed my blank display problem on a TF101 which is well out of warranty. Here is the link. I found the connector loose after dropping my TF101.
Thanks!
Fix lasted for a few days, now backlight dead, tried all cables again. No joy . I hate intermittent faults so ordered a Samsung Galaxy TabPRO 10.1.

[Q] TF101 unresponsive touchscreen

So one day my TF101's touchscreen just became unresponsive. No matter what I try, I cannot get any kind of response from the touchscreen. However the track pad still manages to work. Any thoughts or ideas on how to fix this problem, or is anyone having a similar problem? I am currently running the latest Revolver Rom and a stock kernel. There is also no physical damage to the tablet that would lead me to believe that it is a hardware issue.
Unresponsive touchscreen
flyinbrian2229 said:
So one day my TF101's touchscreen just became unresponsive. No matter what I try, I cannot get any kind of response from the touchscreen. However the track pad still manages to work. Any thoughts or ideas on how to fix this problem, or is anyone having a similar problem? I am currently running the latest Revolver Rom and a stock kernel. There is also no physical damage to the tablet that would lead me to believe that it is a hardware issue.
Click to expand...
Click to collapse
My TF101 suffers from this and it had me stumped for a while. I determined it was a hardware problem when I got so frustrated, i started doing "impact engineering." I gently pressed on various places along the back of the tablet and somehow reengaged the touchscreen connectivity. To this day, it still cuts in and out, but pressing the back of the tablet in different places ultimately reengages it. I'd send it back for repair, but the tablet is about 18 months old and I am probably just going to buy something new in the next 6 months or so anyway. If yours is newer, you should probably RMA it.
FWIW, the area on the back that seems to reengage the touchscreen is the rear upper left when you are holding it in landscape mode with the front camera top/center.
Good luck!

Touchscreen defect?

Hi,
today I discovered something weird with my TF700.
Some part of my screen seems to be "dead". No reaction if I touch this particular part.
I downloaded a simple Draw App to see, which part is affected...
Here is the result:
http://s7.directupload.net/images/121112/ncc5hb2u.jpg
Could this be a software Issue by any chance? I'm using my TF700 for Unisversity, so I really need it.
And after hearing the horror stories about Asus RMA, I'm struggling with myself to send it back.
Has anyone made a similar experience or has a solution for this?
Thanks for reading
F me. I had the same problem. Took it apart thinking a ribbon cable was loose, and broke the damn thing in the process. PS... don't take it apart. If its not unlocked send it in.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Same problem. I have a dead spot about 1/2" wide running vertically in the center of the screen from the top to the bottom (held in landscape mode). Definitely a h/w problem. I would send mine in for a fix but for the many Asus repair horror stories I have read - I'm afraid of getting something back in worse shape (or no change) from what I send them. Plus, having had it for 3 months I don't know what they might charge me for a repair. I can live with it as I only notice it with a few apps/games.
Dave
after turning off my tablet over the night everything seems to work again ???
the dead spot vanished ...
so this is a software issue? what the hell is wrong with my tf700 ??
Strange. I would monitor it. One possibility is that there is a a loose/dicey connection that causes intermittent loss of functionality. Mine is not intermittent and I went so far as to try a factory reset, all to no avail.

[Q] Infinity Self Brick?

I should start by saying I'm not that new to android, but I am by no means an expert and have not been able to figure out how to get out of a very confusing situation.
My tf700 is currently running 4.1.1 Jelly Bean and the newest firmware version 10.4.4.23. Before the firmwarm update, I had unlocked my device thinking that I would try out some of the newer roms based on many recomendations from the facebook Infinity group. I never got around to rooting and installing TWRP, and a few days later I updated to the current stock firmware version manualy (downloading zip from website, flashing from stock recovery). Everything worked great for the first 2 days, and I had compeltely forgoten about rooting/romming thinking that the risks far outway the reward as my device was already near perfect. This morning my infinity began to act funny. Touch responseiveness was awfull (about 1/3 times I pressed, it would react) and it would sporadically stop charging while connected to a power supply. Some time later, while I was watching a flash video my screen turned completely blue and I force restarted it by holding the power button. From then on, I could not turn on my infinity and I tried EVERYTHING (pushing the reset button with a pin, trying a cold boot, holding power for 30 sec etc.). When i tried any of these combinations, the device would start vibrating and the vibrations would not stop. Also, the screen remained black the whole time and nothing I did would even get me a faint glimmer of any sort of screen response.
Has anyone had this sort of issue? I do not think this is a firmware problem seing as it worked fine for 2 days with this firmware and I am at a complete dead end as to what to do. Because I am unlocked, I can not send in my infinity for repair as my warranty is gone. Any help with this issue would be greatly apreciated!
~ Rock
rock1324 said:
I should start by saying I'm not that new to android, but I am by no means an expert and have not been able to figure out how to get out of a very confusing situation.
My tf700 is currently running 4.1.1 Jelly Bean and the newest firmware version 10.4.4.23. Before the firmwarm update, I had unlocked my device thinking that I would try out some of the newer roms based on many recomendations from the facebook Infinity group. I never got around to rooting and installing TWRP, and a few days later I updated to the current stock firmware version manualy (downloading zip from website, flashing from stock recovery). Everything worked great for the first 2 days, and I had compeltely forgoten about rooting/romming thinking that the risks far outway the reward as my device was already near perfect. This morning my infinity began to act funny. Touch responseiveness was awfull (about 1/3 times I pressed, it would react) and it would sporadically stop charging while connected to a power supply. Some time later, while I was watching a flash video my screen turned completely blue and I force restarted it by holding the power button. From then on, I could not turn on my infinity and I tried EVERYTHING (pushing the reset button with a pin, trying a cold boot, holding power for 30 sec etc.). When i tried any of these combinations, the device would start vibrating and the vibrations would not stop. Also, the screen remained black the whole time and nothing I did would even get me a faint glimmer of any sort of screen response.
Has anyone had this sort of issue? I do not think this is a firmware problem seing as it worked fine for 2 days with this firmware and I am at a complete dead end as to what to do. Because I am unlocked, I can not send in my infinity for repair as my warranty is gone. Any help with this issue would be greatly apreciated!
~ Rock
Click to expand...
Click to collapse
Update:
I can now rarely get it to vibrate for even a second holding the power for a long long time. Screen does not come on at all. Looks completely dead.
By your description sounds like a dead or dying LCD.
Sadly RMAing to Asus may cost you out of pocket.
Where did you get the tablet and how long ago?
Thats OK said:
By your description sounds like a dead or dying LCD.
Sadly RMAing to Asus may cost you out of pocket.
Where did you get the tablet and how long ago?
Click to expand...
Click to collapse
I was hoping it wouldn't lead to something like this. I got my tablet from Amazon around the first week of september. I have treated it very well.
I'm not quite sure how it could have burned out, my brightness is usualy <50% and I have used the super IPS+ more less time than I can count
on one hand. If this is the case, Is it possible that a technical problem like this would still be repaired on warranty seeing as it has nothing to do
with the bootloader?
Also I'm not sure how this explain the constant vibrating that does not turn off untill the battery runs out. The way I see it is you could be right, the tablet is trying to tell me it's not going to work, or there is really some kind of software glitch.
Have you ever had LCD problems with a tablet? any idea how much this could cost?
rock1324 said:
Have you ever had LCD problems with a tablet? any idea how much this could cost?
Click to expand...
Click to collapse
I've not had any manufacturing problems with my tab.
I don't see anything you may have done that caused the screen to go bad.
Sounds odd yet a few folks have had their tablet just start working again after seeing similar dead LCD's.
The vibrate thing is weird...almost like a bootloop with no screen.
There's a chance Asus may co-operate if you contact them for an RMA.
It's worth a shot...not sure if Asus has any standard repair rate for this sort of thing.
Curious do you see the back-lights in a darkened room?
Thats OK said:
I've not had any manufacturing problems with my tab.
I don't see anything you may have done that caused the screen to go bad.
Sounds odd yet a few folks have had their tablet just start working again after seeing similar dead LCD's.
The vibrate thing is weird...almost like a bootloop with no screen.
There's a chance Asus may co-operate if you contact them for an RMA.
It's worth a shot...not sure if Asus has any standard repair rate for this sort of thing.
Curious do you see the back-lights in a darkened room?
Click to expand...
Click to collapse
Thanks for the advice, I have heard some terrifying stories of Asus customer support (never had a problem with them myself) and of devices just being completely lost in their care.
To answer your question, no the back lights are not visible at all. The only way I know the Infinity is somewhat alive is by the led coming on while charging and the somewhat random vibrating patterns that happen when trying to boot up.

Touchscreen issues

My wife and I both have the VZW M8, hers is stock and mine is stock rooted. A lately we've both been having issues with the touchscreen getting crazy.
While texting, the gesture typing trail will show up on screen when we aren't using it. Easily fixed by turning that off. However both phones are having issues with phantom touches or complete unresponsiveness. Turning the screen off and then on after a few fixes it briefly, rebooting and letting it sit off for a bit works as well. Just trying to type this up I've had to continuous issues.
Can't do my daily crossword puzzles because it jumps around the board constantly and that's bull****. Anyone else having problems or ideas as to how to fix this?
Well I spent some time on the phone with a tier 2 tech from Verizon. He claimed that it may be leftover data from when I restored my Google contacts...
I humored him and factory reset without anything syncing it restoring. It still happened.
Any ideas at all?
i am having this same exact issue and it is driving my crazy. I have done a factory reset, gone back to stock rom and no luck yet. Beginning to believe it's hardware related but don't know what might have caused it, and these phones are so hard to tear apart that i'm afraid to do so.
I have the same issues, its random. Start typing and its like multiple taps all over the screen. Really annoying
Sent from my HTC6525LVW using Tapatalk

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