My screen stays black when i turn the tablet on. It charges fine and boots up normally because i can connect it to my pc and see the internal storage and access it. Is there a way to determine whether it is a bad lcd or another component such as the cable?
PS: I replace the digitizer on my tablet but i removed everything carefully and made sure that nothing was physically damaged as the screen showed no signs of damage on it.
darktwolf380 said:
My screen stays black when i turn the tablet on. It charges fine and boots up normally because i can connect it to my pc and see the internal storage and access it. Is there a way to determine whether it is a bad lcd or another component such as the cable?
PS: I replace the digitizer on my tablet but i removed everything carefully and made sure that nothing was physically damaged as the screen showed no signs of damage on it.
Click to expand...
Click to collapse
You can use the hdmi connection to your tv to check if it is the tf700t...
LetMeKnow said:
You can use the hdmi connection to your tv to check if it is the tf700t...
Click to expand...
Click to collapse
Is there a way to determine from my computer? I currently don't have an hdmi cable for my tablet so i was wondering is an alternative way to see if it's broken.
darktwolf380 said:
Is there a way to determine from my computer? I currently don't have an hdmi cable for my tablet so i was wondering is an alternative way to see if it's broken.
Click to expand...
Click to collapse
I am sorry.. I don't know a method that you can check from your computer... Someone will give you a better advice... Good luck..:fingers-crossed:
LetMeKnow said:
I am sorry.. I don't know a method that you can check from your computer... Someone will give you a better advice... Good luck..:fingers-crossed:
Click to expand...
Click to collapse
ok thank you for the idea. Also i noticed on the digitizer that there is a metal contact looking frame around where the lcd sits and on the original digitizer, the adhesive tape was like a foam that might have been conductive. I'm wondering if that is a possible reason because the adhesive tape I have is not conductive.
I finally got the hdmi cable in the mail and tested my tablet to see that the digitizer works. Although the screen doesn't work so does anyone know where to get a screen for low price
darktwolf380 said:
I finally got the hdmi cable in the mail and tested my tablet to see that the digitizer works. Although the screen doesn't work so does anyone know where to get a screen for low price
Click to expand...
Click to collapse
Are you saying you connected by HDMI to a monitor and you could see you tablets home screen? Then moved your finger around on the tablets screen and saw on the monitor the touch is working?
I think, since you said earlier you have had it apart to fix the digitizer, you might open it again and look for a loose connection. While you're in there you can get the part numbers off the old screen so if you do need a new one you'll have them.
Once you have that part number just google the part number and go shopping.
Yes the digitizer works fine through hdmi and i did look up the screen model number but i was wondering if anyone knew a site to get them for a low price. I remember seeing one for $55 when i was looking for a digitizer but so far the cheapest i could find was around $88.
Related
Hi there,
My tablet wouldn't turned on, but now, It is turning on but the screen is not working. The tablet itself is working, sounds, wifi, even Touch screen.
But the screen, is just a gray screen with a minimum brightness.
Anything guys?
Looks like a dead digitizer to me..... I had to return a 5 day old TF701 and it looked just like your picture there. If you can return and exchange it with your seller, do that. If that is no option and you still have warranty fill out an RMA at Asus and send it in.
You should get all your files off the tablet and Factory Reset it before you do so. MTP should still be working, so you can use your PC to copy everything over.
Another option is to use Asus Backup to back up your stuff and restore it to the new or repaired tablet. You would have to connect the tablet via HDMI cable to a TV for anything you do on the tablet and believe me: It's a PIA to hunt and peck for just the right spot to touch on the tablet's screen while looking at the TV.... But with some persistence a high tolerance for frustration it can be done.
Thank You Berndblb
I backed up all the files, and the warranty is finished. The service here told me they don't have extra motherboard in their warehouse.
I don't know what to do. I can't let this alone.
You don't need a motherboard - just a digitizer.
You could try to find one on ebay from someone selling TF700 parts.
You find tear down instructions and videos on ifixit.com. Also search YouTube for instruction videos. Check them out and decide if you think you can do it yourself. Or you have to find someone to do it for you.
Asus will do it, but that is going to cost a pretty penny.....
berndblb said:
You don't need a motherboard - just a digitizer.
Click to expand...
Click to collapse
The digitizer is the touch screen. If there is no picture, something else is broken.
Thanks guys, I can do it, I can open the tablet and do the stuff.
I don't know digitizer, and as I said, the touch screen is working and fully responsive. The only thing is the screen which shows nothing but a high brightness page.
It might just be that one of the ribbon cable connections has come loose.
Sent from my ASUS Transformer Pad TF700T using Tapatalk
vt220 said:
It might just be that one of the ribbon cable connections has come loose.
Sent from my ASUS Transformer Pad TF700T using Tapatalk
Click to expand...
Click to collapse
No, I checked the ribbons myself. They are all correct.
If you need to see the tablet's desktop you can connect it to an HDMI input on a TV. This might also indicate if it is a motherboard or GPU or other problem if the TV won't display the video signal.
flhthemi said:
If you need to see the tablet's desktop you can connect it to an HDMI input on a TV. This might also indicate if it is a motherboard or GPU or other problem if the TV won't display the video signal.
Click to expand...
Click to collapse
Thanks!
If the TV won't display the output, so the problem is not the motherboard right?
asus_boy said:
Thanks!
If the TV won't display the output, so the problem is not the motherboard right?
Click to expand...
Click to collapse
Your statement confuses me....might be a translation?
If the TF700 is connected to the TV with a proper HDMI cable and you do not see anything (make sure the TV has the correct HDMI input selected with your remote) then I would say there are "other" video related problems.
Did you connect HDMI? Did the video show on the TV screen?
flhthemi said:
Your statement confuses me....might be a translation?
If the TF700 is connected to the TV with a proper HDMI cable and you do not see anything (make sure the TV has the correct HDMI input selected with your remote) then I would say there are "other" video related problems.
Did you connect HDMI? Did the video show on the TV screen?
Click to expand...
Click to collapse
Well, I got it,
Not yet, I should find the cable and the TV.
Thanks
UPDATE
Guys,
When I connect the Tablet to TV via HDMI, it shows on the TV.
So the problem is the Digitizer? What should I do?
asus_boy said:
Guys,
When I connect the Tablet to TV via HDMI, it shows on the TV.
So the problem is the Digitizer? What should I do?
Click to expand...
Click to collapse
Check if the ribbon cable to the screen has come loose? (If you haven't done so already). Will require you to pop the back off carefully. See you tube vids for TF700 tear down.
Thank you so much, but I done that before, they are fine. Anything else?
asus_boy said:
Thank you so much, but I done that before, they are fine. Anything else?
Click to expand...
Click to collapse
Sorry sounds like a hardware failure then.
asus_boy said:
Thank you so much, but I done that before, they are fine. Anything else?
Click to expand...
Click to collapse
(1) The lcd (display) is bad. (2) If you can still see the display (icons and stuff) in a dark room with a flashlight shining on it, the backlight is bad. In the former scenario, the lcd is around 80 USD on Ebay; in the latter, you might be lucky to find a cracked lcd display for cheap. Buy it and disassemble the thing. Salvage the backlight strip and the back frame and pop your lcd into it. Should work. Just be very careful with taking it apart. Find some detailed instructions on how to do it, like HERE. I've done it with the TF300T, busted cables on 2 of them. Cost some bucks, needless to say, but worthwhile nevertheless.
Hello.
I am in need of board-level repair for my XT926. The connector that the FFC ribbon cable from the LCD screen plugs into was damaged and is missing pins. It will probably need to be replaced.
I have called and searched and can find no repair company that will fix it. Even Motorola (as they will just send me a replacement).
I am worried about the data/pictures I have stored on the phone, so I would like to get this up and running.
Does anybody know of a shop that can do this? I know it isn't a "common" repair, but am willing to pay for it being done to save my data.
Thanks in advance...
spatton1025 said:
Hello.
I am in need of board-level repair for my XT926. The connector that the FFC ribbon cable from the LCD screen plugs into was damaged and is missing pins. It will probably need to be replaced.
I have called and searched and can find no repair company that will fix it. Even Motorola (as they will just send me a replacement).
I am worried about the data/pictures I have stored on the phone, so I would like to get this up and running.
Does anybody know of a shop that can do this? I know it isn't a "common" repair, but am willing to pay for it being done to save my data.
Thanks in advance...
Click to expand...
Click to collapse
I'm still looking for this, if anybody has the skills or no where I can get this done. Money talks.
Thanks.
spatton1025 said:
I'm still looking for this, if anybody has the skills or no where I can get this done. Money talks.
Thanks.
Click to expand...
Click to collapse
It would require serious equipment (hot air soldering station with proper nozzles) and a new part, probably from another motherboard. It's by no means an easy fix.
But why don't you try this:
If the phone boots up, hook it up to a TV or monitor with a HDMI cable.
You should see your phone screen on the TV once it booted.
Connect a mouse with a USB OTG cable to the phone.
You can now either enable bluetooth, connect a bluetooth mouse, so you can free up the microUSB for connecting the phone to the PC to save all your data/pictures/etc.
Or you can leave the mouse connected through the USB and insert a microSD card into the phone to save your data there.
So I bought a second hand Nexus 5 with a defective spekaer (the one for making calls) and microphone. I wanted to fix it so I bought replacement parts from Aliexpress (the earpiece speaker and the charging flex cable since that is what the microphone is connected to). When I had repleced them the screen wouldn't turn on anymore.. It stayed black no matter what I did. I noticed there was some backlight though.. I noticed some things:
1. It vibrated when I turned it on.
2. It gave a low battery notification sound when it was finished booting.
3. My computer plays the sound like it detects something when I connect it but nothing appears in explorer or device manager.
I tried putting the old flex cable in but that didn't work..
What could I try?
Look carefully at the connections on the motherboard and the connecting cables to see if there are any damaged parts.
audit13 said:
Look carefully at the connections on the motherboard and the connecting cables to see if there are any damaged parts.
Click to expand...
Click to collapse
Nope I checked that
Look in the attachement to see how everything is connected..
Maybe something happened when you were changing the flex cable as that seems to be the only explanation since the screen doesn't work with the original and replacement part.
audit13 said:
Maybe something happened when you were changing the flex cable as that seems to be the only explanation since the screen doesn't work with the original and replacement part.
Click to expand...
Click to collapse
What could be damaged then?
First thing that comes into my mind is that you did not/forgot to connect the LCD flex cable or the lcd cable is broken or the lcd is broken.
The backlight and the lcd display should be two separate things, 1 might work but the other might not.
You can try tapping on the screen to see if anything happens to it or try to call your phone and see if you can pick up the call.
Also, did it work before you change the cables? are you sure the microphone and speaker are the only thing broken in the phone?
ck.chunkeat said:
First thing that comes into my mind is that you did not/forgot to connect the LCD flex cable or the lcd cable is broken or the lcd is broken.
The backlight and the lcd display should be two separate things, 1 might work but the other might not.
You can try tapping on the screen to see if anything happens to it or try to call your phone and see if you can pick up the call.
Also, did it work before you change the cables? are you sure the microphone and speaker are the only thing broken in the phone?
Click to expand...
Click to collapse
I will try that. I just plugged it into my pc to charge it and it detected it and showed it in the device manager. This is without the plates over the PCB's, I don't know if that matters..
Yeah I tested it before I took it apart and it worked fine except for the speaker and microphone.
The cable leading from the motherboard to the LCD is in the upper right hand corner of the phone, near the headphone jack.
For some time I had problems with the mic, flickering display and non-responsive touch. I have opened the phone to reseat the flex connection and it has only worsened the problem: the display would not turn back anymore.
I have ordered a new flex cable and the problem persists... but I have a problem with diagnosis. The thing is the motherboard seems to work correctly, as I can find the phone with the Google site (although I cannot play the sound?). On the other hand, before the flex replacement the display would show colorful static, so it does not seem to be physically damaged by my repairs. What else could it be, then? For a while I thought that maybe it is the flex plug on the motherboard, but then the phone is seen as Nexus 5 through USB, so at least some of the data are going through from the USB port to the motherboard...
Without having another working screen, it would be tough to pinpoint the problem.
I do not have another working screen... or so I thought. I have connected the phone through HDMI to my TV and it seems to work, except it is very, very slow. This makes the screen issue more likely.
I agree.
Even a screen that shows scrambled images or static doesn't necessarily mean it's functional.
I've gone through this myself in trying to decide which to buy first: a screen or motherboard.
I have ordered a new display - no luck... It turns out it was the motherboard after all, more specifically, the port for the flex cable. It became more evident when part of the port fell off during the screen replacement...
JabberwockPL said:
I have ordered a new display - no luck... It turns out it was the motherboard after all, more specifically, the port for the flex cable. It became more evident when part of the port fell off during the screen replacement...
Click to expand...
Click to collapse
Sorry to hear that.
I recommend looking for a cheap Nexus 5 with a broken screen and working motherboard for a cheap price.
Hi,
I have my U12+ with dev Options enabled, and last week my display is broken, no chance to made any input with it. Last backup is some moth ago, but I'd made a several week long travel, all pictures are gone, any things I stored on it.
Yes, I know, if I'd made an backup .... But this doesn't help me in this case, afterwards you're everytime smarter....
If there is a chance to copy the data on my Laptop? May sideload TWRP? Is it possible on U12+?
If you have any idea, please help! Also I would pay for it.
When you say the display is broken, does that mean it won't recognize your touch input (per your description), or won't turn on and display anything at all?
Japp, total smashed, just can see some light, but it won't register anything I think -because can't see anything. But light is switched on if I use the Fingerprint sensor at the backside.
:edit: Just zsed a USB-C to HDMI converter -it does not recognize anything.
usb-c adapter to hdmi and usb to connect a mouse
Like this one?
https://www.amazon.de/Adapter-uni-M...ywords=usb-c+hdmi+maus&qid=1596085284&sr=8-10
But how to get further? Because if the Adapter is enabled, and mouse put in, I can't connect the Laptop for transfering the needed data.
edit: bought one from Fitfort with 3 USB Ports, and works fine. Thank you very much for the hint!
Nevertheless I'd repaird it afterwards with new Display and new (unfortunately the blue backcover isn't avaiable anymore, so I have now a black one) Backcover.
Groby said:
Like this one?
https://www.amazon.de/Adapter-uni-M...ywords=usb-c+hdmi+maus&qid=1596085284&sr=8-10
But how to get further? Because if the Adapter is enabled, and mouse put in, I can't connect the Laptop for transfering the needed data.
edit: bought one from Fitfort with 3 USB Ports, and works fine. Thank you very much for the hint!
Nevertheless I'd repaird it afterwards with new Display and new (unfortunately the blue backcover isn't avaiable anymore, so I have now a black one) Backcover.
Click to expand...
Click to collapse
Where did you bought the screen? I need to buy one too but can't find an original anywhere
dioggo92 said:
Where did you bought the screen? I need to buy one too but can't find an original anywhere
Click to expand...
Click to collapse
I'd bring in it to a local reparation center (free, not from HTC itself), cost were (with original spare parts, and I think they are thrustable, because they also do jobs for German gouverment) 130,- with guarantee. Not to much, and I'd can wait for it.
They told me that it is hard to find original spare parts because of HTCs history.