yashsingh1/xdaforums huggingface dataset:
[Transformer TF300T Q&A, Help & Troubleshooting] Nils2008:
When I dropped my TF300 the touchscreen stopped working immediately. The device could be controlled by the dock and it still is.

My digitizer was a 5158N-FPC1 with 60OK0GTC1001C01 2A rev 1.3 as touch PCB.

I replaced it with the G01 digitizer and surprise it does not respond. But I think, that my PCB is broken.

When i understood it correct I could reorder the same PCB and it should work in this constellation, or not?
[Transformer TF300T Q&A, Help & Troubleshooting] dreadzikpl:
It's stock rom with unlocked bootloader only, I'm looking for how to downgrade but i don't find anything what copuld help me :( I'm scared next brick ;/ I have a "WW_epaduser_10_4_2_20_UpdateLauncher" rom and "JB_kernel_10_4_2_20" , I read about put it on root of sd and run RCK on tablet, it's god way to downgrade or no ?
[Transformer TF300T Q&A, Help & Troubleshooting] graphdarnell:
If you have cold feet about rooting, best thing to do would be to generate NVflash blobs first to render your tab brick-proof, then do what the heck you want to experiment, knowing that you have something to fall back on.

Read This Thread, follow the instructions closely. Once you have those blobs, you're safe. Thereafter, you can downgrade with this guide. Have fun!
[Transformer TF300T Q&A, Help & Troubleshooting] dreadzikpl:
I've done downgrade but touchscreen still doesn't work :/ I found something about calibratin and reprograming touchscreen pcb, it's possible to do in home on my pc or only in specialized service?
[Transformer TF300T Q&A, Help & Troubleshooting] graphdarnell:
Did you flash the firmware again? If you did and it still doesn't work, then there's something wrong with the hardware. I don't know of any G01, G03, and no label that doesn't work with the 4820 reflashed. Vadim also confirmed that it worked with the 5158. You might want to check page 12 on about the coil being fried. There are so many possible causes for the touchscreen not working you'd have to troubleshoot from the ground up. Your friend has a TF300. Can you check the combo digitizer+touchscreen board on his machine to see if they function?
[Transformer TF300T Q&A, Help & Troubleshooting] pshyco20042004:
Asus touchscreen replacement and rooted device

Hy.

I have a tablet Transformer tf300tg with jb 4.2.1 version epad 10.6.2.8 -20130719.

The original touchscreen was 5158 (hard to find) and expensive too.I change this one with a G01 version with too holes.

I used the procedure from Vladimbrk but the first problem was rooting the tablet.I tri with all version of unlock from asus website 07 and 08 version without a succes.

Eventually I found a very good tutorial that was presented a Chinese software knows how to root and this version of android on asus transformer.

I put the following link in the idea that someone has problems with root tablet

Attach the file to install Vroot_1.6.0.3690_Setup.exe.7z :)
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
Hi Experts !

I'm experiencing exactly the same problem as tagemuro.. Wrong firmware for my touchscreen... :crying:

Do I have to change my ts pcb ?

Is there a way to bring back the 02-3011-4820.ekt firmware softly ?

Thanks in advance for help
[Transformer TF300T Q&A, Help & Troubleshooting] graphdarnell:
What exactly did you do? Unless you flashed a firmware for another model, you don't need to delete anything; I never had to. Just flash 4820 over it again. What touch firmware do you have that shows at settings/about tablet?

If you decide to remove a firmware, you should only do it after successfully flashing the correct firmware, not before.
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
Ok, first thank you for answering

I've recently change my TF300T TS for a G01 model.

I think I flashed the wrong firmware....

The firmware shown in settings is : ELAN-3021-7038

=> OK for next time but what's my next step ??

THX

:confused:
[Transformer TF300T Q&A, Help & Troubleshooting] yuraterm:
Nobody had a luck to reflash ts pcb after programming 7038 firmware from asus tf700 model yet.

Your next step is to buy working ts pcb with original firmware and reflash it with 4020.

I myself have two such boards and waiting for soluton.
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
Ok understood ... :(

Thanks again for answers

2 more questions :

- is pcb easy to replace ?

- where can I buy one for my TF300T

Regards
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Hey guys! (Mostly Graphdarnell)

I decided to buy ! digitizer again.

What tape did you guys use, as you GD might remember I had those random touches all over the screen with doublesided scotch tape...

I came to think that the tape in question did not ground the screen properly and caused some kind of electric "impulses".

When digitizer was lifted up from the tablet itself no ghost touches appeared.

So now I am in need of proper tape...
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Update the firmware again and post dmesg output. I'll give another try at this.
[Transformer TF300T Q&A, Help & Troubleshooting] clon74:
Thanks for your help

I just want to thanks all of you for helping with my broken TF300t, I carefully followed all the instructions, manuals, tips in this and other threads and my tablet is up and running. This is what I had to do:

enable developer options on TF300

Install JDK and ADB (there should be a dozen links here in XDA)

Install USB driver

unlock bootloader

flash ClockworkMod Recovery

Root my tablet

Download new touchscreen firmware to my PC (02-3011-4820.ekt, page 14 of this thread)

copy the firmware file to the tablet:

# adb push 02-3011-4820.ekt /data/local/tmp/

# adb shell

# su

# touch_fw_update command -u /data/local/tmp/02-3011-4820.ekt

follow a youtube video to replace the touchscreen

I'm sorry I can't post external links but I'm a new user (PM if you want the links)
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
What kind of tape did you glue your digitizer with?
[Transformer TF300T Q&A, Help & Troubleshooting] clon74:
I used the original tape.
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
Here we are !

Joined here the log file of my last attempt...

Thanks in advance [MENTION=5171897]vadimbrk[/MENTION]
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Actually what I want is dmesg output right after you flashed the firmware
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Did you buy a new, if so from where?

If not then how did you manage to get it stick again?
[Transformer TF300T Q&A, Help & Troubleshooting] nelson8403:
I just did this today, replaced my touchscreen with a G01 and then flashed the firmware and everything works perfect! Thank you very much for this
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
dmesg !

Sorry [MENTION=5171897]vadimbrk[/MENTION]

Here is the dmesg...

Thanks again
[Transformer TF300T Q&A, Help & Troubleshooting] graphdarnell:
Sorry for the belated reply, Stem. Been busy helping a kid with the same problem as yours. Turned out easy: Digitizer hairline crack.

I did refer some people to a seller on ebay who has the exact kind of tape for this chore. Here's the link. The tape is thin and strong enough and is perfect for the digitizer. Just you have to be precise with a steady hand when putting it into the bezel since once it sticks, it's difficult to pull out.

What I did was line up the top with camera opening first, then went to the sides and eventually the bottom. The bezel snug-fits, there's no margin for error. You have to fit the digitizer all the way in because the tape is so thin, it won't stick otherwise. Have fun.
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Okay, thank you again so very much!!

I guess the new dig won't hopefully have that crack... I will look into that tape and report back...
[Transformer TF300T Q&A, Help & Troubleshooting] LostBrit67:
Time for a summary write up?

I am coming to this thread late (after 60+ pages), and need to swap a TS with an unmarked ribbon. Seems like I can get one of these "no version" on ebay for ~$43 and swap without any firmware upgrades. I will be ordering one today.

Thanks to everyone that has worked this problem, as always XDA is an excellent resource. Rather than have everyone scan through this thread, I though it might be time for a summary write up as a sticky in the troubleshooting thread, or added to the wiki.
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
Hi, Ive got the exact same error :( with the same firmware on my touchscreen pcb 5158N FPC-1 (7038) but with a G01 digitizer, supposedly the only thing i know of right now is to replace it "the TS PCB" with 60-OK0GTC1001-C01 from asusparts.eu since that one seems to be compatible with the G01 digitizer, also it's fairly simple to replace "just remove the back cover, look for a small black switch near the camera but same side as the ts pcb, just move it to the off position before you go any further and back to on once you're done" but you should always use caution & be careful. once its off there should be and orange pcb ribbon on the bottom right with two pieces connected to the TS pcb if you look carfully there's a flap on each of the sides on the pcb were the digitizer ribbon goes too carefully move them to release the digitizer ribbon them, (there might be some black foam on them if so simply remove it, it's also on the cable from the motherboard to the TS pcb just remove it the same way like the digitizer ones) then remove the 3 screws holding the TS pcb in place, replace it with the new one, put the 3 screws back in, connect the 3 ribbon cable's "big one = motherboard to TS pcb nearer to the top" "two small orange ones = from the digitizer to the TS pcb nearer to the bottom" once done feel free to put back on the black foam pads and carefully move the small black switch "from earlier" at the top near the camera" to the on position re-connect the back plate i.e case. then power on, it should ether (1) flash the proper firmware automatically or (2) the touch will work as it should. but in-case it doesn't try Vadimbrk's method again which is bound to work ;)

Good Luck :good:
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
Thanks a lot [MENTION=5611350]uw07[/MENTION] !!

Waiting for an answer from [MENTION=5171897]vadimbrk[/MENTION] then if hardware replacement is the only way, i will follow this great detailed procedure !!
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
If you are bored, desperate or just filling adventurous, flash the attached kernel. If it boots...Load the touchscreen driver then try to flash the firmware. Post dmesg output after flashing.

flash the kernel from recovery. rename ektf3k.zip to ektf3k.ko

To load the driver:

copy it to device -

adb push ektf3k.ko /data/local/tmp

load it -

insmod /data/local/tmp/ektf3k.ko
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Installed dig and now this same thing again...
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Turn the screen off. Press on the touchscreen in different locations. If you see "watermarks", take it of and put some filling between the edges of the lcd and touchscreen.
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
I cant see any, and if i place my finger (not pressing at all) just putting one finger onto both the dig connectors the random touches will disappear.

For a moment I got it working and could use the tab normally until I turned the screen off. Then they appeared again....
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Try putting a sticker or something between the flex cable and the bezel.
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Im sorry but what do you mean with bezel?
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
The metal/plastic frame. Don't let the flex cable touch anything other that the connectors. Check if the bezel is straight and flat and the corners are not bent.
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
If that is what you meant, then no that did not work either...
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Another option that works is to switch between two ts pcbs. What's not working on one device may work on another. It's asus we're talking about. ..;)
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
But I have no warranty left....

And if you would be kind and try if there is any problems if you take off those foam nubs from the flex connectors as I do not have them?
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
My best guess is that the foam is there to filter some "electric noise", should work as good with out it.

Find a friend with tf300. Swap ts pcbs. Flash both of them. Should work.
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Haven't got a friend with a tf300 :(

It is still quite wierd that just putting the finger on the connectors makes the touches stop BUT does on the other hand not recognise any of my own touches then....
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Well, its time to get that old dusty phone book out ;)

I've replaced hundreds of various asus digitizers, there is only one rule: there are no rules.

Asus engenering is the worst! Try to find another ts pcb (not new, just a swap), if the installation was proper it will work.
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Where??!?!?!??!??? :)
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
Try ebay or asuspats.eu they seem to have a few TS pcb's for the tf300t, or if you're looking or a digitizer i got mine from ebay (they have loads) its a G01 :)
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Problem is that I do not want to pay for that pcb if my own still properly works...

I wonder it has something to do with the bezel touching the dig...
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
It could be that, try resitting the digitizer ribbon (orangery brown pcb ribbon) check to make sure the white lines on them are fitted all the way in the ts pcb, If fitted I'd personally boot it on without the back plate on with all the cables connected too see if the problem is gone but that's just me if you want i could upload a photo of how the digitizer ribbon connecter should look connected to the ts (TouchScreen) pcb. :)
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
I have done that a hundred times already ;)
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
i see, what type of digitizer do you have and was it working before? i.e previous one or is it new? i ask cause it might just need the right firmware flashed for it to work, but that's just a guess :confused:
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Yes yes yes I know. First dig was the 5***N and now I have GO1 and the right firmware is flashed about ten times now...

Listen!

When the dig WAS NOT glued into anything, just connected to the TS PCB it worked FLAWLESSLY!!!

Upon glueing the random touches appeared... tested on TWO different GO1 digs...
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
I just went back and read your previous post's, my apologizes :( ,looks like the glue is the culprit, I'd suggest to try removing the glue on the digitizer see if it works again and if it does use double sided adhesive tape instead, the best way to remove the glue would probably be with a hair dryer or something simulator but not too hot. again my apologies :(
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Hahh no problem! :)

But it is glued with doublesided scotch tape (I used word glue).

And my task tomorrow is to remove the dig and try out...
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
:cowboy: ,I gotcha, i used a heavy duty one, it works but it kinda pushed out the digitizer a little bit but the tablet is in a leather case and it all seems alright for the time being :fingers-crossed: ,Good Luck ;) I hope it works out for you alright :good:
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Thankss! :)

Have you got a link to the heavy duty tape?
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
Here you go ;)

http://www.ebay.com/itm/230983102051
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
That specific item does not ship to Finland :( but thanks anyways...
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
No risk, No fun !

I'll try this tonight... Hope it won't brick !

Tanks
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
I didn't know - sorry, but I had another look and found this, it ships worldwide :good:

http://www.ebay.co.uk/itm/390415432001
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
Took of the taping and it still shows the touches :(!! Now I am really clueless...
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
Hmm, if the touchscreen was working fine before I'd say there might be something wrong with the digitizer [might have a defect or might need a re-flash of the firmware], I'd say to re-flash the touchscreen firmware for the digitizer first since that should re-calibrate & clear things up :fingers-crossed: - for the firmware for the G01 Digitizer (4820) it should be on post 14 (i think) but if that doesn't work for whatever reason and there's no tape residue on the glass of the digitizer, and the flex has been refitted till the white lines are fitted all the way in the ts pcb then I would assume the digitizer might have a defect :( , but if you re-flash the firmware be careful not to flash the one with 7038 at the end since that one's for the asus tf700 (i made a mistake of flashing it once by mistake) :crying:

also if you or [anyone] would like any photos of how mine's is (flex cable installed in pcb or firmware on my tf300t) I'd be more than happy to post some :)
[Transformer TF300T Q&A, Help & Troubleshooting] Stempanssi:
I have reflashed about 5 times...

I do not think two digitizers from two different manufacturers would have faults?!!
[Transformer TF300T Q&A, Help & Troubleshooting] uw07:
It's possible but very unlikely - (one in a million chances), it's probably ether the bigger cable from the motherboard to TS pcb isn't in all the way, something with the flex cable - digitizer one, or a bad TS pcb. when the tape was removed from the digitizer was the digitizer clean or did it have some residue from the tape left on? (since that could mess with the calibration & touch screen)
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
"If it boots..". but it didn't... :(

I'm on 10.4.2.20 stock ROM
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
at what point it get stuck?
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Ok, Try this one. Should work.

Just flash the kernel and try to flash the firmware.
[Transformer TF300T Q&A, Help & Troubleshooting] MaNuXdaDev:
Nope... :(

Round points turning forever...............
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Hmm...can you adb shell to it?
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
It's may be ramdisk issue. Took the ramdisk from the latest update while the kernel source is different from the kernel in the update. Don't know if it matters anyway...

I'll use Anykernel.zip to pack the kernel.

Let's move this testing to PM's to not flood the thread.
[Transformer TF300T Q&A, Help & Troubleshooting] bcombel:
I have the tf300 with 5158n digitizer and my daughter cracked the screen about 2 months ago. The lcd wasn't damaged and was still working fine. So I ordered the g01 and I took the cracked digitizer out and I was putting back together last night and turned it on but I got nothing. So I held the power button for 30 seconds and then it turned on but to my surprise I could barely see anything on the screen(very faint). I took it back apart and made sure all my plugs were plugged in all the way but nothing changed. When I took everything apart the first time I didn't turn the service switch off but I don't see any burn spots around the coil. I'm at a loss as to what the problem is. Any help would be appreciated. Thanks
[Transformer TF300T Q&A, Help & Troubleshooting] graphdarnell:
The LCD and the touchscreen operate independently of one another. Hence, they should be troubleshot separately. If you can only see the screen (or what shows up on it) in a dark room with the help of a flashlight, then your LCD backlight doesn't work. How did you remove the LCD? There was a youtube video showing that you remove the back frame and pour everything out before scraping off the LCD front frame. If you followed that, chances are you did something to the LCD board or internal ribbons. And when you reassemble, you must do it in the exact order in which everything was originally stacked. That method has never worked for me. Even if you're successful, the frames are so flimsy if you bend them even slightly, it would result in light bleeding afterwards.

A damaged backlight is not repairable, I'm afraid.

Without a working LCD, the only way to test or calibrate the digitizer would be to plug the tab into a monitor via HDMI. I'd say you should work on the LCD first, unless you're ok with using your tab on a tv monitor. It's a pain, as you always have to guess where to touch. Is the digitizer working at all? If not, try reflashing the firmware through ADB. Report back if you still have issues.
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
Remove the black cover around the lvds connector on the lcd. Find the fuse. It's a white little component near the connector. Chech for continuity. If the fuse is burned, bridge with solder. If the fuse is ok, measure voltage on it. If it's not getting power, trace it to the motherboard. You probably burned the coil that feeds the backlight.

---------- Post added at 11:32 AM ---------- Previous post was at 11:07 AM ----------

I'm not familiar with that youtube video but replacing backlight is easy and should take about a few minutes. The proper way to do it is taking two identical LCD's, disconnecting the backlight ribbon, disconnecting the electronics from the frame, removing the metal bezel and switch between the lcd+electronics only.

Don't bother to pull the backlight and all other defusers and polarizers. Just swap the lcd itself.
[Transformer TF300T Q&A, Help & Troubleshooting] graphdarnell:
Let me make sure I understand you correctly, Vadim. I didn't see a way to remove and change just the backlight on this thing. What one needs to do is to replace the whole lcd with its board attached. If that's the case, then for laypeople like us having no access to the material source, it's the same as buying a framed lcd in terms of price. Do you know otherwise?
[Transformer TF300T Q&A, Help & Troubleshooting] vadimbrk:
I don't know what(or who) you mean by laypeople. If you in the need for a new backlight for your lcd you can try to pull the led strip from some old screen and try to replace with you current not working one. The method I suggest is not to replace the strip itself but the whole lcd assembly other the lcd itself. It's easier and produce more success rate. Obviously, you need a broken screen for parts first.

---------- Post added at 09:27 PM ---------- Previous post was at 09:23 PM ----------

You need to reuse your original lcd+attached electronics.