Hi
Forgive me if this has been posted before, but this is my 1st post here & need a little 1to1
My touch screen on my Qtek 9100 stopped working a few days ago, the phone is ok, i can make calls & use the manual keypad.
The phone was left uncharged for a few days & when i went to use it again the touch screen was not working.
There is a dent in the screen that i did not notice before, its only about 1cm, actually its more of a scratch than a dent.
The screen looks fine, no cracks or black spots visable.
No life from the screen, whatever part i touch.
Can someone advise me on what to do to get back up & running.... I have already done this.....
Hard & soft resets
Installed latest ROM.
Phone is currently stuck on the the "touch screen to setup your mobile device screen"
I have already ordered a new touch screen from the net,
should i just change the touch screen or are there other things to try first?
Any advice welcome like
(links to how to change the screen)
Cheers
any luck? im having the same proble but with my atom exec and everyone seems slightly blank on this
When the touchscreen went bad on mine, it turned out the cause was a tiny, almost invisible hairline crack in the touchscreen's ribbon cable which severed one of the wires. I had to use a magnifying lens to see it.
It was possible to test with a multimeter. On the back of the LCD is a piece of clear tape covering where the touchscreen ribbon is soldered to the LCD. You will need to lift the tape to expose 4 wires from the touchscreen. With pressure on the screen, there should be a resistance around 1.2kohms between pins 1&2 and the same between pins 3&4. On mine, pins 3&4 were open circuit.
To fix mine, I didn't change the screen. I removed the touchscreen ribbon from the main LCD (accidentally tearing the solder pads off the ribbon - I wasn't sure how it was attached). Then I used an X-acto knife and scraped off some plastic from each side of the break. Then I soldered a TINY piece of copper wire no thicker than a hair across the break (a single strand from a stranded wire). Since I accidentally tore the solder pads off the ribbon, I scraped off some plastic from the copper traces there and soldered some wire to them and soldered that to the LCD. That did the trick, it's all working now!
i have this same problem.. i was using the qtek with the cracked digitizer but when i did the hard reset it took me to this screen. is there anyway we can get off this screen? help plz!!
Recently I had to glue part of the facing that came off of my housing that covered the front camera. Accidentally some of the glue drip down on the front keypad and got onto the button board underneath it. The left side of keypad started not to work. I disassembled the phone and notice that the D/thumb keypad had adhered to the button board. After separating the keypad from the board, part of the backing that holds the circular metal contacts to the board came off.
Does anyone know where I could get that backing for the button board or where to purchase a replace button board that fits the T-Mobile MDA Vario II?
I'll describe everything from scratch so you'll know what the problem is. So, I had 2 MDA Vario II, both developed a fault (on one when I pressed the button on na hardware keyboard it showed two letters on the screen instead, on the other the backlight under a couple of letters stopped working) so I dissasembled them and out of two faulty, I had one working and one working so-so.
As I wanted the other one to be sorted (the connector to the hardware keyboard was burned in some places on the mainboard and the keyboard tape connector as well), I was shopping for some faulty ones on eBay and yesterday I bought an original TyTN with LCD screen not working. I dissasembled both of them and connected the full LCD fascia with the screen to the mainboard of the TyTN (so that now I've got the LCD housing from T-Mobile, but the rest from HTC) and everything is working perfectly... however I'd like to use TyTN only housing and possibly buy a new one on eBay (but keys on the bottom are different for Vario II and TyTN).
I do know that LCD screens are incompatible, in the TyTN I have the HITACHI and in Vario I got the TOPPOLI (however the whole thing works with the mainboard, as both of them have the same product codes)...
But does someone know if I put the whole LCD from the Vario including the tape and top buttons in the fascia of the TyTN and connect it to the bottom buttons circuit, it will actually work. I will do it anyway, but if someone was doing it in the past that would motivate me to fiddle with it tomorrow
Sorted.
For all those with NOT working LCD screens/keyboards/mainboards...
As I the LCD screens are not compatible and we often do not know what we are going to get off eBay, lots of people face the problem of buying something that may not work with their version.
I needed the mainboard and the keyboard in my Vario II (HERM300) and I bought HTC TyTN (the original one, HERM200) with not working LCD (backlight working but nothing could be seen on the screen). As you may be aware that TyTN has got an extra button for 3G and Vario II not, I was wondering whether the whole thing would work. I replaced the full LCD screen with the tape including the two top buttons and connected it to the bottom circuit of the original TyTN. After assembling everything back, I switched it on and it's working without any problems. So if you have the same problem and can get hold of a cheap Hermes for spares on eBay, as long as you replace the whole lcd with tape it'll work regardless of your version...
Useful info thanks. That question was asked before and I don't think anyone gave an answer. Good to know it will work despite the different button layout.
cheers
Mike
Hi guys,
What could be the possible reasons for a touchscreen and the capacitive buttons to stop working?
I purchased my Huawei U8800 only very recently but it was purchased 2nd hand. The phone came pre-installed with a custom rom, which is this one here: http://forum.xda-developers.com/showthread.php?t=1481168
I've had very minimal use of it ever since I received it, due to the reason that I have exams as I'm an UNI student. Therefore, I haven't modified the phone in any way, i.e I have not overclocked it or flashed a different kernel or recovery etc. The only thing I've done is installed GO SMS PRO and used it for txting and calling, that's it.
At first, everything seems to work fine. But on my 2nd day of use, the touchscreen started acting weird, where the right hand side of the screen stops working for no reason, as well as the 2 capacitive buttons on the right half of the screen (HOME and SEARCH). Then after a while, the BACK capacitive button on the left half of the screen stopped working, and eventually all 4 capacitive buttons and the entire screen stopped working.
The phone still turns on, but the entire screen doesn't pick up any finger input and there isn't any haptic feedback or vibration from the capacitive buttons. When I boot into the recovery, this is also the same.
So I contacted the seller about this, and he advised me to flash the Cyanogenmod 7.2 rom to see if this fixes the problem. It didn't, the touchscreen still doesn't work.
I'm wondering if this is related to the digitizer, which is the part of the phone that sense your finger inputs? If not, what are the other parts of the phone that could relate to the capacitive buttons and touch screen?
Definately a digitizer problem. The capacitive buttons are part of the touch screen, the touch screen is extended over the bottom of the display.
You should buy a new one from eBay or similar. If you want to buy it with a frame (black part on the front), you will have to open your phone to see if the front speaker is big or small. There are two types of front speakers and they are not cross-compatible. If you just want to buy the digitizer, you will have to remove the old digitizer from it's frame and add some glue on the new one to make sure it won't stick out.
If you don't want to mess with your phone, I am sure there are paid services that will do it for you, since replacing the digitizer is fairly easy.
Blefish said:
Definately a digitizer problem. The capacitive buttons are part of the touch screen, the touch screen is extended over the bottom of the display.
You should buy a new one from eBay or similar. If you want to buy it with a frame (black part on the front), you will have to open your phone to see if the front speaker is big or small. There are two types of front speakers and they are not cross-compatible. If you just want to buy the digitizer, you will have to remove the old digitizer from it's frame and add some glue on the new one to make sure it won't stick out.
If you don't want to mess with your phone, I am sure there are paid services that will do it for you, since replacing the digitizer is fairly easy.
Click to expand...
Click to collapse
thanks for your reply mate!
Ok so I've found this one here:
http://www.ebay.com/itm/Original-To...Glass-For-Huawei-U8800-Ideos-X5-/170721993712
Since it says it's "original", I don't have to worry about the speaker problem right?
chaoscreater said:
thanks for your reply mate!
Ok so I've found this one here:
http://www.ebay.com/itm/Original-To...Glass-For-Huawei-U8800-Ideos-X5-/170721993712
Since it says it's "original", I don't have to worry about the speaker problem right?
Click to expand...
Click to collapse
They are selling the digitizer, so there will be no problems as it's only the digitizer glass and not the frame around it. The frame itself is holding the digitizer and the speaker so that's why there may be issues when buying the front cover.
If you need a disassembly tutorial, check my Mediafire (signature) -> Documents -> U8800 Basic Maintenance Manual. It's the official disassembly guide so you can be sure you are doing it right .
Blefish said:
They are selling the digitizer, so there will be no problems as it's only the digitizer glass and not the frame around it. The frame itself is holding the digitizer and the speaker so that's why there may be issues when buying the front cover.
If you need a disassembly tutorial, check my Mediafire (signature) -> Documents -> U8800 Basic Maintenance Manual. It's the official disassembly guide so you can be sure you are doing it right .
Click to expand...
Click to collapse
Wait, that doesn't have the frame around it? I thought the black part surrounding the glass is the frame? I'm confused.......
I just want something that looks exactly like shown in that Ebay listing photo, where it has that bit of the connector part that you push into the motherboard (or whatever it's called on the phone).
chaoscreater said:
Wait, that doesn't have the frame around it? I thought the black part surrounding the glass is the frame? I'm confused.......
I just want something that looks exactly like shown in that Ebay listing photo, where it has that bit of the connector part that you push into the motherboard (or whatever it's called on the phone).
Click to expand...
Click to collapse
On your listing, it does not have frame.
If it's without frame, it is simply the front glass with connector. If it is with the frame, it has the black curve too (and speaker with led).
See this:
Without frame.
With frame.
Hope it makes sense now
Blefish said:
On your listing, it does not have frame.
If it's without frame, it is simply the front glass with connector. If it is with the frame, it has the black curve too (and speaker with led).
See this:
Without frame.
With frame.
Hope it makes sense now
Click to expand...
Click to collapse
Ahh ic ic.....so would I need to use glue to stick the digitizer glass onto the frame?
chaoscreater said:
Ahh ic ic.....so would I need to use glue to stick the digitizer glass onto the frame?
Click to expand...
Click to collapse
Yeah, but not much. Maybe you don't need to add any glue at all, the old one might hold it too.
u8800-51 touch screen bottom not responding
Blefish said:
On your listing, it does not have frame.
If it's without frame, it is simply the front glass with connector. If it is with the frame, it has the black curve too (and speaker with led).
See this:
Without frame.
With frame.
Hope it makes sense now
Click to expand...
Click to collapse
hi blefish
just posted a similar question:
http://forum.xda-developers.com/showthread.php?p=39201328#post39201328
is it the same solution? (the 4 buttons at the bottom do not work as well as the lower half of screen)
my speaker is 15 mm by 5 mm long (i looked inside). is it big or small?
all the ebay posts do not mention a frame - i will be happy not to mess with the glue
thanks
huwaei G 510
Hi guys,
I did have the same problem with a Huawei G 510. Digitizer broken and replaced, but still not working.
I have no action on screen. It lits but i can't press any button. Either the 3 buttons are working.
Checked the plug, checked some voltage in the pins.
Any other ideas ?
Thanks in advance,
Miltos Matt
I have a G530, the Tmobile version, though fully unlocked, rooted, etc. I had cracked the digitizer and while waiting for a new one I dropped it again and the LCD popped out with the digitizer, disconnecting itself and would come back on after that. I got a new LCD and attached it to the board (disassembled) and all worked. I mounted the board back in the case and reattached everything but then only the backlight would turn on during initial boot. The connection seemed loose and after 2-3 reconnects I got my display to work, but while attaching the digitzer, the glass at the very top, just before the lcd starts broke... So I got ANOTHER lcd and digitizer (They're cheap) This LCD only gives the backlight at initial power on, with no display response, but no matter what I do, I can't get it to kick on like the last one.
I'm trying to get an idea if it is the new LCD, or if my connector on the board is broken, It looks like maybe a bit of plastic at the top broke off.. and is making the connector a bit loose. Since I get a backlight, anyone have any experience as to which is more likely broken? I'm not sure if power from the connector goes straight to the backlight, or if it goes to the LCD first, and if I would get a backlight with a bad LCD. These are cheap $25 LCD & Digitizer bundles from Amazon, like 'Mencia' brand so good chance I could have gotten a new one that is dead.
I'll try to get another up close shot of the connector, this magnifying app didn't focus in as well and you cant see the individual connectors as well, but they are fine, its the very top part of the connector looks a bit smaller. The bottom part has a piece of metal sandwiched between the plastic, but the top doesn't have a bit of plastic after the metal tab, of course, it could be absolutely nothing :s