Tablet on, screen backlight on, no display, HDMI out working - Eee Pad Transformer General

LTL, but I have an issue now and search isn't helping.
So, I have had my AT for about 3 weeks. No problems. Forgot to charge it overnight, no big deal. Charged it for several hours and then turned it on. Nothing. The screen lights up, but there is nothing on it. Ok, says I, I restart it. Nada. I did the hard restart (10 seconds holding the power button, 2 seconds off, 10 seconds holding it again) and still nothing. Then I noticed it made noise if I touched something that makes noise. I plug in an HDMI, and low and behold, the tablet is working fine, the screen just isn't. Now, keep in mind that the backlight is on, the screen just doesn't display anything. Any ideas?

Good2BCh13f said:
LTL, but I have an issue now and search isn't helping.
So, I have had my AT for about 3 weeks. No problems. Forgot to charge it overnight, no big deal. Charged it for several hours and then turned it on. Nothing. The screen lights up, but there is nothing on it. Ok, says I, I restart it. Nada. I did the hard restart (10 seconds holding the power button, 2 seconds off, 10 seconds holding it again) and still nothing. Then I noticed it made noise if I touched something that makes noise. I plug in an HDMI, and low and behold, the tablet is working fine, the screen just isn't. Now, keep in mind that the backlight is on, the screen just doesn't display anything. Any ideas?
Click to expand...
Click to collapse
If you never dropped it, then the ribbon cable connecting the screen to the motherboard probably got loose and isn't making a proper connection. Your choice is to RMA or try taking it apart yourself and re-connecting the ribbon cable.

I have exactly the same issue. I wish i can tear apart my transformer, but i don't know how.
Sent from my SGH-T959 using XDA App

martabakeju said:
I have exactly the same issue. I wish i can tear apart my transformer, but i don't know how.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
There have been posts with pictures detailing the tear down steps people did to take it apart, but it can't be said for certain that the ribbon got loosen. The screen could've very well just died. I know for a fact that some LED powered screens draws power for the LED backlight from the same ribbon cable, if the Transformer's IPS screen does the same then the screen must've died cause the back light is still on indicating the ribbon cable is still in place.

frosty5689 said:
If you never dropped it, then the ribbon cable connecting the screen to the motherboard probably got loose and isn't making a proper connection. You choice is to RMA or try taking it apart yourself and re-connecting the ribbon cable.
Click to expand...
Click to collapse
Thanks I might just do that. It is case-kept and it was inside a computer bag, so even if it was dropped (I didn't, but I have a dog/cat/wife who might have bumped it ) it should have been fairly protected. I am still within my return/replacement window with Amazon, but they can only refund me due to lack of stock

I was also thinking that maybe it thinks an HDMI cable is still attached and won't put the tablet display on? I have never hooked up an HDMI cable up until this issue arose so I am unsure what my AT's screen would do when I plug an HDMI in. Does the screen turn off? Does the backlight stay on?

I don't think thats the issue...before my screen totally died, it discolored for some time...then i kinda shook my AT quite strongly, then the screen totally died. I think it is the ribbon issue.
Sent from my SGH-T959 using XDA App

martabakeju said:
I don't think thats the issue...before my screen totally died, it discolored for some time...then i kinda shook my AT quite strongly, then the screen totally died. I think it is the ribbon issue.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
I think a tear-down thread has pics of the display connections, if there's a separate backlight power cable then yah, ribbon is loose.

So, after a minor teardown, I ensured all wires were re-seated, not just what I think was the power and display cables. Still nothing So, since I was still in the window of return/replacement with Amazon, I did that. But, as it is abundantly clear, the Transformer is sporadically in stock at best, I couldn't get a replacement, only a refund. Also, since I need a tablet by Tuesday at the latest, I am now the reluctant owner of a Samsung Tab. I am going to miss my microsd slot, my IPS screen, and my extra $100 bucks
Thanks everyone for the suggestions!

FYI I had a similar issue after accidentally bumping and dropping my transformer about 1 foot onto my mattress. Turned it on and backlight was on but no visual. Heard email notifications etc suggesting it was working. I haven't been able to get hdmi out working yet so didn't get to confirm that.
Amazon bought, but returned it to Asus service centre in Sydney. Got it back today with repair report stating "Reconnected LVDS cable". Presumably if the repairers knew you had disassembled it yourself and attempted to fix it they would say your warranty is void, would that be correct?

Related

No image after lcd replacement

Hi, I've unfortunately broken my hd's lcd.
I've replaced it at home, but after I turn on the device, it vibrates one time, then I hear the htc opening sound, but there is no image or light.
So I guess the device itself is functional, but there is a problem with the lcd.
Somebody told me, that if I put on it a new stock rom it would fix the problem.
But when I connect the hd with an usb cable to my computer, nothing happens, there is no connection estabilished, the computer doesn't see the hd.
When I plug the device to charge, it charges.
So how can I replace the rom on my hd? :S
I've also tried to update the device from an sd card, I've formatted an 8gb sd card under win7,put on it an official rom, with the device turned off pressed the vol down button+the power button,then release the power button,the the vol down button,then press the power button.
But it's the sam: vibrateing when turning on,then after 30secs the htc sound,but no update..
Have you taken your HD apart again and checked the physical connection of the ribbon connectors for the LCD and Digitizer? They have to be pushed all the way into the socket and the sockets must be locked in a couple of different methods depending on the connection type. If they aren't in properly, you would probably experience the problem you've described.
Before trying to explore software issues, make 100% sure that you don't have a hardware issue.
I had the sync connection issues, then I found this thread. http://forum.xda-developers.com/showthread.php?t=524619 I followed the instructions and was able to get connected again. It's worth a try.
if you change the lcd and don't get any image on the device
I would think
the lcd you got is dead
or the image display port of your motherboard is dead
Rudegar said:
if you change the lcd and don't get any image on the device
I would think
the lcd you got is dead
or the image display port of your motherboard is dead
Click to expand...
Click to collapse
I also have the same no image issue. I have also tried a second LCD with no luck. Once I was able to connect to the phone again, I flashed the stock rom from HTC, still no LCD. Tried leaving the battery out overnight, still nothing. I have been able to get the phone display to work by putting the phone body minus battery by an exterior window for about 1/2 hour, its cold in my neck of the woods. Pop the battery back in and I have a screen again, for about 5 minutes... One time I was able to get the phone to stay on for over an hour by doing the above steps and then right after putting battery back in cool phone, I immediately synced up with my PC and it stayed alive.. I don't know what the deal is.
Update for those who care. I have been playing with the cold phone/battery and have found out the following:
Cold battery/warm phone = no LCD
cold phone/warm battery = no LCD
cold phone/cold battery = working LCD every time.
I have also been able to use the phone, after both batt. and phone are cold, for as long as I want as long as it stays active and does not go to sleep. The phone will not come back on if I let the screen turn off by itself or if I push the power button to turn it off unless I cool it off again. I plan to call HTC in the morning to see about a repair, but have had fun playing with this weird situation.
So,I've opened up my HD and found out, that the data cable that is connected to the volume button has been detached from it.
Is it possible to solder it back without changing the piece?
My hd is still in the srvice shop for a price offer, but after I will get it back, I will try your cold lcd/battery thing.
Will it work with the fridge too? Because it's getting warm up here
So,if I undertand you correctly: after the lcd and the battery is cold, the lcd works, and if you connect it with the pc, it's stays alive until you put the screen to sleep,than it's dead again?
Zirowe said:
My hd is still in the srvice shop for a price offer, but after I will get it back, I will try your cold lcd/battery thing.
Will it work with the fridge too? Because it's getting warm up here
So,if I undertand you correctly: after the lcd and the battery is cold, the lcd works, and if you connect it with the pc, it's stays alive until you put the screen to sleep,than it's dead again?
Click to expand...
Click to collapse
The cold trick has worked every time for me. I only hooked it up and had it on while connected to the pc once, but I think it should work again.
On another note, I heard back from the repair center and they wanted to replace the LCD (for $300) and I then explained to them that the LCD was not the problem and then was informed if it was indeed the mainboard that needed replacement then it would cost even more... I tried to plead with them that it is a common problem with HD's and even though the warranty is void I think they should cover it, didn't work.. It's times like these that I curse my curiosity and ability to repair my own things.
Zirowe said:
My hd is still in the srvice shop for a price offer, but after I will get it back, I will try your cold lcd/battery thing.
Will it work with the fridge too? Because it's getting warm up here
So,if I undertand you correctly: after the lcd and the battery is cold, the lcd works, and if you connect it with the pc, it's stays alive until you put the screen to sleep,than it's dead again?
Click to expand...
Click to collapse
As far as the fridge goes, it should work just don't leave it in too long.. if it gets too cold then you might get condensation when it heats back up.
Forgot to add that I got my HD back from HTC yesterday. Got excited thinking they went ahead and fixed it for me!! But no... It worked just fine for about 5 hours after I unboxed and put my battery back in. Was turning on and off like normal, then after bout 5 hours it was back to the usual working phone with no LCD. I did notice that the screen was pulsing, for lack of a better term, it would dim then come back up to full brightness, then dim and repeat. There has got to be a way to fix this! (other than the mainboard replacement)

[Q]Transformer Possibly Bricked

Hey got my transformer today but no joy, It wont even power on . I charged it via wall socket for an hour, still wont power on so I tried charging it through usb on my desktop and still no dice. I tried the button combinations listed here http://forum.xda-developers.com/showthread.php?t=1032374 and was able to get a reproducible click noise but no screen movement what so ever. I unplugged it once in the beginning and it made a low battery noise but have not been able to make that happen again. Any ideas?
Thanks
timinator94
P.S. Should I try this? http://tabletroms.com/forums/showthread.php?976-Nvflash-Unbricking-and-forever-root!
It couldn't hurt to try. It supposed to unbrick bricks.
Sent from my HTC Vision using XDA Premium App
Tried it. Windows does not recognize the device. Then clicking on properties it states that the device is not working. I'm guessing faulty cable. Will look for a replacement tonight.
As per the instructions charge it for 8 hours with the OEM charger and cable. Charging via the USB is pretty worthless. The charger is rated at 1.2 Amps at 15 volts. A USB port is .5 Amps at 5 volts, way less.
You need to install the Windows drivers to have ir recognized.
Sounds like a dead screen.
Does the power adapter feels hot/warm when you do your charging? Did you push in the power adapter until you hear a click sound?
@greeny2010 Yes and yes,
I will let it charge all night tonight and let you all know in the morning.
Ok I let it charge overnight and attempted to power it on. First I pressed the power button for ~10 seconds then waited ~5 seconds and pressed power again. This time the speakers made a pop noise and I heard the camera click but still no screen D:
Any other ideas? I really don't want to rma I have my final essay due Thursday and I stupidly sold my laptop to get this thinking it would get here and just work.
I read in another post where someone had a similar issue which was due to a bent pin where the transformer connects. I would inspect that carefully.
timinator94 said:
Ok I let it charge overnight and attempted to power it on. First I pressed the power button for ~10 seconds then waited ~5 seconds and pressed power again. This time the speakers made a pop noise and I heard the camera click but still no screen D:
Any other ideas? I really don't want to rma I have my final essay due Thursday and I stupidly sold my laptop to get this thinking it would get here and just work.
Click to expand...
Click to collapse
do you have a mini hdmi? IF so see if you get a picture on your tv. I was able to get a picture on my tv but not on my TF. Turned out my display was dead.
Dead screen The backlight is out. Is there any fixing this or is rma the only option?
sux, RMA it yo
timinator94 said:
Dead screen The backlight is out. Is there any fixing this or is rma the only option?
Click to expand...
Click to collapse
Within 30 days you can always return it, if you can find another one in stock somewhere. Otherwise RMA is your only option
bricked transformer
i have asus tranfrormer 9.x.x.x, recovery 5.8.x.x, after i did superwipe , every thing is gone and i cant flash any rom through adb/nvflash saying cant write to sdcard (read only). any suggestions?

Nexus one wont power back on after reassembly xpost from QA. Please advice.

Hey guys, my LCD broke, It was a AMOLED not SLCD, I bought this piece off ebay:
http://www.ebay.com/itm/260900702599?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I put everything back for the second time now, first of all the device doesn't come on, but when I plug the AC power it shows charging light.
I'm pretty sure my old screen is AMOLED..
I made sure all the connectors where tight on the board. any help?
It wont power on, did I break something?
I'm pretty screwed guys, been at it for like 5 hours I'm done for tonight
Here is what I've conluded. I detached the digitizer from the lcd I made a mistake and removed the factory "tape"
Is and in the process the little power button came off.
So what are my chances now?
Can the digitizer be taped back to the lcd? or Do I need to get a new digitizer which includes an LCD? so as to preserve the factory tape?
As far as the power button goes, I'm not talking about the plastic bit, I'm talking about the actual button underneath. It seemed to be holding on my a little thread anything. Is that "thread" a connector or the button functions fine without it?
I put iit back and sealed the phone up, it seems to be pressing. But of course the phone wont still come on :/
Have you tried the "jump start" method for people with broken power buttons? ie, plug the phone into the wall with the battery out and insert the battery. It might take a few insertions for it to work.
evilkorn said:
Have you tried the "jump start" method for people with broken power buttons? ie, plug the phone into the wall with the battery out and insert the battery. It might take a few insertions for it to work.
Click to expand...
Click to collapse
How many seconds? It didn't work :/, the charging light just comes back on.
S_Dot said:
How many seconds? It didn't work :/, the charging light just comes back on.
Click to expand...
Click to collapse
Might have to give it a few tries. Like up to 10.
Sent from my Nexus One using XDA App
evilkorn said:
Have you tried the "jump start" method for people with broken power buttons? ie, plug the phone into the wall with the battery out and insert the battery. It might take a few insertions for it to work.
Click to expand...
Click to collapse
this happened to me last weekend when i replaced my trackball. my power button gave out.
That cable is a major issue with our N1s. You can order a replacement on ebay (or other sites) for usually around $40. It is called the flex cable.
The jumpstart method should work assuming nothing else is screwed up. But it isn't an exact science. Usually if you have your charging cable plugged in, you pull out the battery and put it back in, the phone will vibrate after a few seconds and start booting. If it doesn't, pull the battery out and try again.

[Q] New screen/digitizer, now nothing happens

I replaced the screen and digitizer but when I tried to power up, nothing happens. I thought it was a low battery issue so I left it charge overnight. Still nothing. I put this battery into another Nexus 7 to see if it is a battery problem. That Nexus booted up and shows the battery at 100%. So the battery did charge as it should. I tried putting the battery from the second Nexus into the first Nexus and It does nothing. I have checked all of my connections several times and everything seems to be fine. It did power up before I replaced the screen and digitizer.Any ideas?
haymeadowfield said:
I replaced the screen and digitizer but when I tried to power up, nothing happens. I thought it was a low battery issue so I left it charge overnight. Still nothing. I put this battery into another Nexus 7 to see if it is a battery problem. That Nexus booted up and shows the battery at 100%. So the battery did charge as it should. I tried putting the battery from the second Nexus into the first Nexus and It does nothing. I have checked all of my connections several times and everything seems to be fine. It did power up before I replaced the screen and digitizer.Any ideas?
Click to expand...
Click to collapse
This might be a hike but try using the old digitizer. It's very possible you have a bad digitizer since the battery charged full.
I tossed the old screen and digitizer already.
Its possible it has turned on but the screen isn't working try plugging into a computer and see if it recognises anything
Sent from my Nexus 7
Plugged into my laptop and nothing happens.
haymeadowfield said:
Plugged into my laptop and nothing happens.
Click to expand...
Click to collapse
OK if you have two nexus try swapping the motherboard over try not to bend the springs on the mb for the circuits on the back they are made of phosphor bronze and break easily
Sent from my C5303 using XDA Free mobile app
That's going to be my week-end project. The "good" N7 is one I use every day.
One thing I would like to add. When I was charging the battery, I did not have the back cover on completely and I could faintly a voice saying "alert". When I snapped the cover back on I could no longer hear it and it charged. Does that "alert" mean anything?
haymeadowfield said:
One thing I would like to add. When I was charging the battery, I did not have the back cover on completely and I could faintly a voice saying "alert". When I snapped the cover back on I could no longer hear it and it charged. Does that "alert" mean anything?
Click to expand...
Click to collapse
I've never heard of that before. The nexus should function without the back although WiFi NFC and Bluetooth won't work as the antenna's are attached to the back
Sent from my C5303 using XDA Free mobile app
I did get my laptop to recognize the N7.
I got a new LCD flex cable and still nothing.
I put the new S/D into my working N7 and all I get is a screen that is half black on left side and half on right side looks like the backlight is on and nothing else. So is the S/D defective?
haymeadowfield said:
I did get my laptop to recognize the N7.
I got a new LCD flex cable and still nothing.
I put the new S/D into my working N7 and all I get is a screen that is half black on left side and half on right side looks like the backlight is on and nothing else. So is the S/D defective?
Click to expand...
Click to collapse
Sounds like the screen/digitizer is defective. Return it for a refund or exchange.
deltatux

Help! Battery drained, phone won't turn on, battery charging icon flashes on and off?

My phone had been working perfectly fine, as well as charging perfectly fine. Recently, I accidentally let it drop to 0%, which I don't usually do. I went to plug it into the same wall outlet as always, but instead of the usual charge process, the battery icon with the lightning bolt in the middle simply flashes on the screen and then turns off, which happens over and over again.
It should be noted as well that about 3 weeks ago my phone get fairly wet. After that incident, I turned it off till it dried, powered it up, and everything appeared to be totally ok. No problems since then until this.
Other facts:
-I can safely get into the recovery menu (power + vol down), which is stable, but any menu selections result in the Motorola splash screen for a quick second and then the phone powering down.
-The computer will recognize the connection to the phone.
Attempts to resolve:
-New cable, new usb hub, new wall outlet
-Trickle charge from the computer (same flashing)
-Phone in rice to remove moisture
-Toothbrush cleaning of Micro-usb port (suggestion from another thread)
I'm pulling my hair out, and I am considering prying off the back and replacing the battery. I have searched other threads, but have seen various solutions none of which worked for me. If anybody has any idea how I can fix this please help!!!
Thanks in advance.
Unfortunately most probably is the hardware problem. I had similar issue with razr. Splashed it on the beach, quickly washed with tap water, dryed it and for couple of days like nothing happened. Then suddenly digizer stopped working. It was motherboard. Luckily one xda member donated me the same phone with broken screen so I replaced motherboard by myself.
Sent from my LG-V940n using Tapatalk
Zeljko1234 said:
Unfortunately most probably is the hardware problem. I had similar issue with razr. Splashed it on the beach, quickly washed with tap water, dryed it and for couple of days like nothing happened. Then suddenly digizer stopped working. It was motherboard. Luckily one xda member donated me the same phone with broken screen so I replaced motherboard by myself.
Sent from my LG-V940n using Tapatalk
Click to expand...
Click to collapse
Thanks for the suggestion. Well, I got it back working again, by charging it for 5 hours straight and then not charging it for an hour. Now it appears to be functioning alright, with the exception that it once went from 40% bat to 15% to 0% in a matter of seconds and I had to repeat the procedure to get it back on. I have another turbo with a broken digi that I could cannibalize but I have no idea what to replace... the battery? Bizarre issue, but I guess that comes with the territory of water damage.
Maybe some part is still wet. If another Turbo has only broken screen, then is probably the easiest solution to take screen from the (ex)wet and put to another one. You just have to have proper screwdriver.
Replaced battery now Droid turbo flashing when I charge?

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