yashsingh1/xdaforums huggingface dataset:
[HTC Sensation] midtskogen:
Thanks for sharing your efforts, shawndh. Since T-Mobile is often mentioned, I'd like to add that there is no particular brand on my phone and digitiser. I bought the phone (without any plans) in Norway, and the digitiser was sent to me from a Danish supplier. It all looks original HTC, but one never knows.

Since the grounding is something that has come up several times, one thing I did try was to ground the phone (through the spring thing on the side) by wiring it to true ground (i.e. ultimately to the water pipes), which didn't change a thing.
[HTC Sensation] tangcla:
I gave up and sold my phone on eBay. :p
[HTC Sensation] shawndh:
I'm just about there myself. It's crazy! My personal Sensation works perfectly. But this one is just gone nutz! I'm tempted to buy some from that supplier I linked to but I'd be pissed if that still doesn't fix it. I'm afraid to open my own device now.

BTW, I went to a local supplier to try his Sensation screens. His didn't work either. They were also HTC branded without the T-Mobile logo but from a different source. I told the guy what was happening with them and he said he would let me know how his repair goes on his friends Sensation. '

I'm also going to take my friends Sensation digitizer out and put in my phone to see if the T-Mobile branded digitizer will work better. He's replacing his LCD so that will be a good time to experiment. I'll post back my results.
[HTC Sensation] tangcla:
After slicing the first digitizer's ribbon by accident (sliding it between the chassis and LCD) I'm pretty apprehensive about opening up a phone if there's no need :p
[HTC Sensation] vvv1vvv:
Another way to test if grounding is the issue would be to try and fit back a broken digitizer. This would work if the old digitizer didn't get completely shattered as mine was. I've seen pictures with one crack in the middle or a broken corner.

I bought my replacement from ebay (seller: yallstock) for $27.99, transport included. It is unbranded, but so was the original. It suffers from the same problem reported throughout the thread.
[HTC Sensation] tangcla:
I put my original digitizer back on and it works fine.
[HTC Sensation] vvv1vvv:
These news are disturbing. Not much point in checking grounding issues. We need a proper digitizer then.
[HTC Sensation] thasp:
I had a perfectly working sensation with the original digitizer, even with it in pieces. Upon replacing it, I had the issues everyone states here. I tried fixing grounding issues, but that's not the problem. If it were, my attempts would have worked. More importantly, if it were grounding issues, the digitizer I had threw in the trash minutes earlier would not have worked perfectly in the phone.

The digitizers that say HTC without t-mobile on them are useless trash to us.
[HTC Sensation] Equinox102:
I replaced an HTC-branded international version smashed working digitzer with an HTC-branded one and had the same issues. I don't think it has anything to do with the T-Mobile versions.
[HTC Sensation] Droidicus:
Waiting with bated breath here on the results of different digitizers.... Please report back on one that seems to work. So far its not looking promising!... :-(
[HTC Sensation] eunkipark92:
If I take it to the local phone repair center would same thing happen? They said it will cost me 90 bucks...I'm thinking about trading my phone for nexus one +cash.... darn...stupid crack
[HTC Sensation] vvv1vvv:
Unless your local is associated with HTC (i.e. authorised repair) you can assume the same thing will happen. Unfortunately.
[HTC Sensation] Restrected:
SOLUTION :)

here is the deal, i had the same problem.

i had a broken htc sensation 4g t-mobile broken digi, and as you might assume, i did cut my finger on it before deciding i wanted it fixed.

well, 3 digitizers later (that i changed myself) that i bought in several places online, none worked. ALL of them had the same issue as described. NO response!

it felt very much as if the electromagnetic field created by the net of invisible wires inside the digitizers was broken. i could not get it to unlock.

i thought i broke the phone, since i did not have the original digi in one piece to try it out.

Then i found this thread. i got sad from all the grim news.

then the good news.

there is a company that has the original second edition digitizers available, but they do not sell them, since there is 3 model numbers that are not interchangeable.

go to www.rossmanngroup.com, call the number, as for the sensation repair service.

i am located in new york city, so i walked there, but they are mail in service based.

well, now i have a brand new looking phone and works like new too.

if any of you try this route, please post your results. i am happy, and i can post pictures if i knew how.

if you live in new york city, or close, just call and go to 30th st and 8th ave. they are nice down there (its a bassement location)

well, they claim they have all the versions available, so try them out. their ratings are good, and i cant complain either. they saved me from buying another 500$ phone.

ps: if you DO walk down there, its a very very shady looking place, but they have a proper setup and all that. even a clean room. but the walk down to the place is very very shady.

also, one of the guys would not stop talking, but nothing bad, just small talk.

anyway, i am happy my phone is working like new finally.
[HTC Sensation] eunkipark92:
How much did it cost you because the pricing is not on their website for sensation.
[HTC Sensation] Equinox102:
Very interesting. Do you have any information about how to identify the three different digitzer versions?
[HTC Sensation] vvv1vvv:
Maybe you can find out who supplies their digitizers...

Can you also please post the version of the working digitizer?
[HTC Sensation] Restrected:
I wish i knew

well, i dont know anything about the versions of the 3 digitizers. thats what i was told. i never got to look at the versions.

but i do know, that their digitizers, at least the one that put in my phone, actually sais "HTC T-Mobile" on the top. my original one did not say that, my original only had HTC in the middle.

i had a friend of mine go there, today, he had a decent experience too.

his phone works fine now, im in the proccess of rooting it now. response is perfect.

i wish i could get those model numbers, would save all of us future problems. but so far, they are the only place that do this right with the right part, AND THEY DO NOT EVEN ADVERTIZE IT!!! i find this odd by the way.

i paid 130+tax since i paid by card, otherwise it was going to be 130. my friend got a 10$ discount since he was refered.

im happy with what they did, and 2 days into it and it works perfect.

thats all i know at this time, and before you ask, NO i will not take apart my phone now that it works :) im too scared to mess it up. after a few days maybe i get over it and open it.

ps: i am running http://xdaforums.com/showthread.php?t=1098849 right now, just flashed it 2 hours ago. it works perfect! i have not tested the gps yet, but everything else seems perfect. and very stable so far and i have done a ton of stuff in it so far.

i cant testify to battery life, but seems ok.

its very responsive and smooth with this room, but i had to update the radio to the recomended version before i got full bars.

---------- Post added at 01:18 PM ---------- Previous post was at 01:11 PM ----------

well, all i saw that was visible while they were installing it infront of me was the chip on the flex. it is 4 times as big as all the ones i bought online. the chip had more conections to the flex and it was almost 1mm by 1mm, unlike the ones i received before which were .5mm by .5mm.

that and the fact that this one said tmobile on the right top corner were the only differences i saw.
[HTC Sensation] coppil:
Arg I just cracked my screen as well. :(

Anyway, I was looking on ebay for a replacement digitizer and I found one from a seller in HK, user name kr-net. (I'd post a link but I'm still new :p )

The seller says that these digitizers are OEM and removed from the original phones. Looks promising but what do you guys think?

Those of you that have taken your phones apart, does your original digitizer look like the one in the listing?
[HTC Sensation] Equinox102:
Ok surely we can get to the bottom of this. :P

Let's look at the part numbers.

what9000 reported that he originally had a digitzer with this part number:

PYD V1.0

SW-10 94V-0

E308252.1117

He replaced it with this:

PYD V1.0

E219454<>1

ruICACichia

94V-0 1112

And experienced the unresponsive issue.

Myself on the otherhand with my Australian delivered Sensation replaced my original digitiser which was:

PYD V1.0

E219454<>1

ruICACichia

94V-0 1112

With:

PYD V1.0

SW-10 94V-0

E308252.1117

And experienced the same issue. Note that my replacement appears to be what what900 had stock and his replacement appears to do be what I had stock.

Does that imply that if we were to swap our replacement digitzers it would work? Has any one of who who has tried to swap yours and failed had the same part number on both the original and the replacement?
[HTC Sensation] Restrected:
i was looking at the ones i got online, and i cant even find those number you are giving here.

where are they located on the digitizer?
[HTC Sensation] Equinox102:
Sorry. Here you go.
[HTC Sensation] nonione:
equinox where did you buy your digitizer?

and what9000 where did you buy yours?
[HTC Sensation] monakh:
Cracked my screen on solid concrete via a 3 feet fall on my way back from the gym.

Before I splurge on some unknown eBay dude's goods, I'd love to get to the bottom of this issue so just keepin' the thread alive!
[HTC Sensation] Equinox102:
Hong Kong-based eBay seller with a (basically) flawless feedback profile with 55,000+ sales.
[HTC Sensation] derksend:
same problem here put in a wrong digitizer can someone tell me where to buy this one

PYD V1.0 This is the original version with is in my Sensation

E219454<>1

ruICACichia

94V-0 1112
[HTC Sensation] Equinox102:
Here's someone in Singapore selling

PYD V1.0

E219454<>1

ruICACichia

94V-0 1115

Very close to yours...

http://bit.ly/pSKK4S

What was the model number of the replacement you tried which didn't work?
[HTC Sensation] derksend:
I going to try that one my replacement screen was a sw10 the original is a ruicacichia 94v
[HTC Sensation] nonione:
Any success???
[HTC Sensation] jriv:
just replaced mine with one from eBay and lock screen problems with mine too
[HTC Sensation] Equinox102:
Can you quote the part numbers of both your original digitzer and the replacement for us?
[HTC Sensation] derksend:
My sensation is going to htc tomorrow i will see what digitizer there going to use. I will post the specs of there replacement digitizer when I've got itback
[HTC Sensation] shawndh:
I got one to work!!!

I bought one from Hong Kong with the T-Mobile logo and it worked! I told a local supplier about it and he ordered some but from a different supplier and his screens worked too. They were on ebay for $39 but they bumped the price up to $45 and they take forever to get here. I waited like 2.5wks. But they do work. Here is the supplier in Hong Kong:

http://www.ebay.com/itm/TOUCH-SCREE...545?pt=LH_DefaultDomain_0&hash=item2a110247c1

And here is a US supplier here in GA that has them:

http://www.ebay.com/itm/OEM-NEW-T-M...279?pt=LH_DefaultDomain_0&hash=item3f0dbea7e7

You're better off getting them from AskTronics since they're a US seller and the price is now the same anyway. But I've been to their shop and tried their screens and they work.

Another twist to this issue is that this same shop had a guy come in and install the plain HTC digitizer on a T-Mobile Sensation and it worked perfectly. So I don't know. Some work, some don't. I've got two Sensations and they only work with the T-Mobile branded digitizers.
[HTC Sensation] nonione:
and both of your sensations are from tmobile? Did you by any chance got to see the numbers of the digitizers? The originals and the ones u bought?
[HTC Sensation] shawndh:
Yea, both of the phones are T-Mobile Sensations. I have both screens. Here are the part#'s I have:

HTC branded:(written on cable)

PYD V1.0

E21945 1

ICAC ichia

94V-0 1112

(written on chip)

8CTMA340

1043 D 04

-48LQI-09

CYP656805

PHI

HTC/T-Mobile branded:

(written on cable)

PYD V1.0

E21945 1

ICACichia

94V-0 1115

(written on chip)

8CTMA340

48LQI-09

1107 D 04

CYP608303

PHI

164

This is my best interpretation. These letters are small as heck!
[HTC Sensation] shawndh:
Do we know what the actual part# is? I have a bunch of lines of numbers but I'm not sure which one is the actual part#. It seems it will depend on which screen version you had originally. Unfortuately, I don't have the original screens to compare. I just have some screens that work and others that don't work on my two Sensations.
[HTC Sensation] nonione:
well it seems that from what ive read on this thread that t-mobile sensation uses:

PYD V1.0

SW-10 94V-0

E308252.1117

(the digitizer replacement doesnt necesarily say t-mobile on the top)
[HTC Sensation] deschenes:
ok guys i have few question for you...

i broke my digitizer on my sensation so bougth a new on

my oem digizitizer part number is

pyd v1.0

sw-10 94v-0

ew08252 1111

and i bougth this one that you linked from asktronic

if i understand what you said... i have a t mobile sensation beacause of th part number of the digitizer but i don't have the t-mobile logo on the corner of the oem digitizer?

i don't realy understand what is the diference whit t-mobil phone and no t-mobile phone and how to indentify them

just want to be sure that bougth the good digitizer!
[HTC Sensation] jriv:
So if I buy the one with the T-Mobile logo it will work properly.cause I installed the HTC one and the lockscreen is laggy
[HTC Sensation] conner727:
same problems here. The digitizer i ordered off ebay had tmobile in the upper right and htc in the upper left. same unresponsiveness as everyone else though. must be a fake from china or something. Heads up if your buying on ebay.
[HTC Sensation] nonione:
ok guys mine came in the mailbox today bought it off ebay from seller "yallstock" which has been mentioned here before and i received:

PYD V1.0

E219454<>1

ruICACichia

94V-0 1112

and mine is:

PYD V1.0

E219454<>1

ruICACichia

94V-0 1115

anddddd it didnt work same problem as everyones

someone mentioned here yallstock sends the 01115 one but i received a 01112 one :(

im gonna try buying another one cept this time ask the seller for a 01115 one it has to work!!!
[HTC Sensation] Droidicus:
Thank you Guinea pigging this! ;)
[HTC Sensation] vvv1vvv:
Got it working too!

I can confirm the digitizers that worked for shawndh are working for me too. No more delays!

Check post #66 on this thread. I bought the one from the US supplier (e-bay member ask_tronics) as i didn't want the t-mobile logo on it. Took 10 days to get it in Europe.

Many thanks to shawndh for spotting them and posting here.

Here's the part no. (on cable) of the working digitizer:

PYD_6042A_FPC REV: A

mK VS T<>2

VTM-0 XT6043C09A
[HTC Sensation] Equinox102:
What were the numbers on your original smashed digitizer for reference?
[HTC Sensation] vvv1vvv:
Sorry, i didn't keep the original. I only have the second digitizer that lagged (bought on ebay from yallstock), see details below.

Avoid this one:

PYD 1.0

E219454<>1

ICAC ichia

94V-01112
[HTC Sensation] hello00:
can anyone else confirm that?
[HTC Sensation] RChadwick:
I broke my HTC Sensation screen as well. I bought a screen on Ebay from Mengtorusa in California. It's labeled with HTC and T-Mobile, but based on the numbers, it looks like it won't work. Here's the new digitizer details:

(Numbers were on the opposite side of the cable, not the black side)

PYD_6042A_FPC Rev ?? (Covered by warranty sticker)

nK VS T<>2 VTM ???? (Covered by warranty sticker)

My original screen is:

PYD V1.0

SW-10 94V-0

E308252 1113

I've also noticed there are minor differences in the traces on the back of the screen. If anyone's interested, I'll post pictures.

When discussing screen compatibilities, it might help if everyone mentions what country you're from. Different version phones likely went to different countries, and saying a certain screen works in your phone might not be so helpful to someone in the States if you're from Europe. BTW, I'm in the US.

Also, I don't remember where, but in my hours of trying to research this, I came across a mention there was a difference between an HTC Sensation, and an HTC Sensation 4G. Maybe the 4G is T-Mobile only? Or US only?

I'm wondering if a screen recalibration might fix things? I'm using a Dell Streak as my spare until I get my Sensation working, and if you hold certain buttons while turning on, and enter a code, you get to a menu where you can check and calibrate just about everything, including the touch screen. Maybe this delay is really a recalibration when the phone realizes the stored parameters are not working? It would make sense, as I'm sure power is cut to the digitizer when the screen goes black, and if the stored parameters don't work, the screen recalibrates on the fly, and those settings may last until it loses power. Does anyone know if the Sensation has a Diag menu?
[HTC Sensation] nonione:
havent heard from that menu, hope there is a menu like that
[HTC Sensation] vvv1vvv:
Well, I'm in Ireland and i bought the one of the digitizers shawndh recommended. He/She is from US and it worked. He's got the one with T-mobile logo from KH supplier and I got the one from the US supplier, unbranded. I'm sure our phones can't be from from same batch.

It looks like it's only a version problem rather than a combination of batch+digitizer.

There's a software on the market that does some calibration, I tried it when i had a troubled digitizer, but no joy.
[HTC Sensation] Droidicus:
Ok. What is the number for HTC repairs in the US? I'm sick of this stupid cracked screen.
[HTC Sensation] Droidicus:
Hey, I hope my comment didn't kill the thread! Keep posting with results people! Weneed to find a solid, working screen replacement! ;)
[HTC Sensation] jem_diamond_pancake:
So I replaced my digitizer before I found this thread, and I got a random, unbranded digitizer off of Amazon.

The flex cable on the replacement says:

PYD v1.0

E21954[symbol]1

ru ICAC ichia

94V-0 1112

I have no idea what the original, T-mobile branded, digitizer had on the cable as I threw it away.

Since replacing the digitizer, I have had the same problems reported by others in this thread. The lock screen is minimally responsive for 15-20 seconds, then every thing is fine; ditto when the screen is blanked by the proximity sensor.

I found it difficult to replace the digitizer so I don't really want to try again. I thought I would see if there was a software solution.

I haven't made much headway, but I did find this:

There is a directory in the root of the file system at /sys/android_touch that contains a variety of files related to the digitizer. These files are periodically created, usually, but not always after the screen is reactivated from being asleep/powered down by the proximity sensor. Among those files is a file called "calibration." This file contains several rows of numbers that change each time the file is created. When I moved calibration to calibration.old the touch screen stopped responding until I put the screen to sleep with the power button and woke it back up. Upon waking, the /sys/android_touch folder was repopulated and calibration.old was gone.

Anyone know how /sys/android_touch is created? It seems to me that whatever is generating the files in that folder may be responsible for the lag with our mildly incompatible touch screens. I've trolled through dmesg and I can't find any obvious action creating those files...
[HTC Sensation] RChadwick:
OK, more results. I replaced my screen today, and there's no delay. However, the screen seems a little messed up. Sometimes it's hard to unlock the lock screen, or play Angry Birds without prematurely shooting the bird. I was concerned that, unlike the insides of any other phone I've seen or heard of, the tape between the digitizer and display was black, and seems to wrap around the display. I thought it could have been impregnated with carbon or something else conductive, and might be some kind of shielding, so I did my best to reuse it. Maybe I would have been better off ripping it out completely and using 3M tape.

Also, I haven't seen this mentioned anywhere (Wish it was before I took out the old screen), but there is a ribbon cable at the bottom of the screen. If you run your pry tool all the way around (Like I did), you have a good chance of cutting the cable in one or two places. This piece has the sensors and lights for the hard buttons, as well as the Microphone. Fortunately, the assembly is also available on Ebay.

Another note... Before my screen broke, the one thing I really hated about my phone was that everyone kept telling me to speak up. After I replaced the microphone/touch cable assembly, everyone can hear me fine.

Back to the digitizer... I noticed a few of the sellers on Ebay were bragging about how their digitizers were A quality, without bubbles. I used to think that was BS, but after putting in the screen, I realized there's an imperfection. I thought at first I missed a speck of dust, but you can see the surface is curved around the spot. Fortunately, it's barely visible, especially with a screen protector. I got my screen from Ebay seller MengtorUSA. The price was right, although it recently went up $10. It's marked with T-Mobile.

So, what has everyone done with the black tape around the display? Rip it out? Reuse?

Also, after replacing the digitizer, did it work perfectly? Minor issues? Something else?
[HTC Sensation] nonione:
I reused my black tape as much as I could but since my digitizer was not the.correct one I ordered a new one along with a bunch of 3m tape (2mm)

This time I sent a bunch of message to some eBay sellers to make sure I order the same original one, will post results as soon as I replace the digitizer
[HTC Sensation] vvv1vvv:
Had to replace mine twice, first replacement was laggy at first use. I reused the original tape. The problem was it started to gather dust. Much as i tried, the reused tape wasn't sealing the screen properly. When i bought the second digitizer, i got some 2mm wide 3M tape as well and i replaced completely the old one. I taped both the LCD and the side of the housing. No more dust now.

And yes, the second digitizer works perfectly, no lag or any other issues.
[HTC Sensation] RChadwick:
Thanks for the response. That was pretty much what I was hoping to hear. So, for the second time, you removed the black tape? It looks like the tape is in the shape on an L, with tape on the front and sides of the LCD. Did you cut the front part off, leaving the sides? Or did you pull the tape out?

Also, what did you do with the four buttons? Mine aren't working as well as before, almost the same as the screen. I taped around that strip, but not on it. I'm wondering if that was a mistake.
[HTC Sensation] jem_diamond_pancake:
Ok, so I've gotten a little further with a possible software solution to the lagging lock screen problem. I'm pretty sure /sys/android_touch is created by the kernel. After looking at HTC's source (from htcdev.com), I found a section of touch screen code specific to touch screen manufacturers.

On looking at the vendor file in /sys/android_touch, I got this:

CY8CTMA340_x0008_30

The internets informed me that this a Cypress touch screen identifier, and the HTC source has code for Cypress TMA 300 touch screens. I have a theory that the problem is that my touch screen is a Cypress 340 screen. I'm getting a copy of the AOSP kernel source now to look for Cypress 340 code.

To follow up on this, I'd like to be sure my phone is reporting the id of the touch screen correctly. Does anyone else have this version of the screen working without the lag? With the lag?