Database Users

HTC HD2 assembly problem

Hi guys,
I just disassembled my HD2 to replace my broken digitizer and touchscreen.
But now i'm stuck with a problem.
What shall I use to glue both items together again?
And the keyboard makes some issues.
I tried to place both parts over eachother to see if they fit but I can't press the keys after it.
Seems like they are stuck.
That's why I didn't want to use superglue because after assembling it I wouldn't be able to change anything.
Maybe pictures tell more than words.

http://www.youtube.com/watch?v=t8Q7mXdcJ54&feature=player_embedded
hope that helps you

thanks wasn't the information I was looking for but nevermind
I assembled the device now .. but the next problem occured ..
the hd2 is loading without problems (led shows it) but when I try to power it on it's completely dead. nothing happends
with my old touchscreen it was at least possible to power it on.
my question is:
could the new soldered touchscreen + digitizer be broken? or did I break something during disassembly and assembly?
To be honest I didn't see any mistakes I made.
It's not my first time repairing stuff like that because I used to repair notebooks as a hobby.
Still i'm unsure what the heck is going on with my phone atm.

did you check if the flex cable from display is in the port, there is an white stripe that shows how far it must in the port. Did the phone vibrate when you pressed power button?

I checked the cables and found nothing suspicious.
and the phone didnt even vibrate after trying to power it on.
I'm trying to get a new hardkey board (i hope you know what I mean).
Had problems with the keys being stuck and maybe I killed that one by trying to assemble it.
if the phone doesn't recognize me pushing the power on key it's no wonder it won't do anything.
hope this will fix the problem

12dollar said:
I checked the cables and found nothing suspicious.
and the phone didnt even vibrate after trying to power it on.
I'm trying to get a new hardkey board (i hope you know what I mean).
Had problems with the keys being stuck and maybe I killed that one by trying to assemble it.
if the phone doesn't recognize me pushing the power on key it's no wonder it won't do anything.
hope this will fix the problem
Click to expand...
Click to collapse
Most likely something is wrong with your Power button, but you should turn it on with 2nd method:
- pull out battery;
- insert usb cable(connected to PC)/charger in your usb port;
- insert battery.
This way it should turn on whatever OS you have installed on.
If your OS is Android through MAGLDR, connecting it through usb should turn it on by default, unless your battery is not dead!
Check it out!

bib*oops said:
Most likely something is wrong with your Power button, but you should turn it on with 2nd method:
- pull out battery;
- insert usb cable(connected to PC)/charger in your usb port;
- insert battery.
This way it should turn on whatever OS you have installed on.
If your OS is Android through MAGLDR, connecting it through usb should turn it on by default, unless your battery is not dead!
Check it out!
Click to expand...
Click to collapse
I just did as you said and yeah the phone came to life.
so there is definately a dead power button (probably the board is broken)

12dollar said:
I just did as you said and yeah the phone came to life.
so there is definately a dead power button (probably the board is broken)
Click to expand...
Click to collapse
Glad to hear that!
Definitely you should replace your keypad flex!

Did you fix the problem with the hardware keys
Hi,
I have very similar problem.
I changed the touch screen on my HD2 and after reassembling I cannot get the hardware keys clicked.
I ordered a brand new key board and brand new plastic buttons. I received them but situation is the same.
If somebody can explain is there any trick during adjusting the plastic buttons to the clickable "small dots" on the board - please help me.
Best Regards

maznevh said:
Hi,
I have very similar problem.
I changed the touch screen on my HD2 and after reassembling I cannot get the hardware keys clicked.
I ordered a brand new key board and brand new plastic buttons. I received them but situation is the same.
If somebody can explain is there any trick during adjusting the plastic buttons to the clickable "small dots" on the board - please help me.
Best Regards
Click to expand...
Click to collapse
Normally this is always down to glass digitizer not being aligned correctly when stuck to LCD.
0.05mm can make all the difference here.
You need review current digitizer position & pre test assembly to centre chassis without tape for a test run on button function.
Also check button board position is exact & located correctly in the pin holes at each end of the board.
original board quality is normally far better than most of the very cheap eBay pattern parts but one or two sellers offer a decent board around $4.50
Also clean all old tape from back of LCD & centre chassis plate so parts fit flush & once all checked new tape can be added, I also use small spots of up40 adhesive sealant near corners & near middle edges for final build up as holds far better than even the best tapes & gives an original strength & long lasting flush look to final job plus us easily removed with razor blade if repair ever needed again.
Super glue is a BIG no no NO.

Hard to get hardware buttons clickable
Mister B said:
Normally this is always down to glass digitizer not being aligned correctly when stuck to LCD.
0.05mm can make all the difference here.
You need review current digitizer position & pre test assembly to centre chassis without tape for a test run on button function.
Also check button board position is exact & located correctly in the pin holes at each end of the board.
original board quality is normally far better than most of the very cheap eBay pattern parts but one or two sellers offer a decent board around $4.50
Also clean all old tape from back of LCD & centre chassis plate so parts fit flush & once all checked new tape can be added, I also use small spots of up40 adhesive sealant near corners & near middle edges for final build up as holds far better than even the best tapes & gives an original strength & long lasting flush look to final job plus us easily removed with razor blade if repair ever needed again.
Super glue is a BIG no no NO.
Click to expand...
Click to collapse
It is not the case in my case , because I ordered full set (digitizer + display) and they arrived factory assembled.
But you are definitely right - 0.05 mm make the difference. I think the problem comes from the fact that the board with buttons cannot be firmly fixed to the 2 small juts on the chassis. You know the plug of the buttons board is on the tail like extension. Probably when I try to cover the buttons board with the LCD+digitizer - the frame of the LCD slightly pushes the buttons board and the juts on the plastic buttons cannot be fixed exactly on the top of the actual buttons on the board. Anyway we are speaking about precise fixing something around 0.05 mm over something else, which is exactly same size... and in the same time you have to fix this without any visibility.
I will continue trying. If you can give me any other ideas - I will appreciate this.
Thanks

maznevh said:
It is not the case in my case , because I ordered full set (digitizer + display) and they arrived factory assembled.
But you are definitely right - 0.05 mm make the difference. I think the problem comes from the fact that the board with buttons cannot be firmly fixed to the 2 small juts on the chassis. You know the plug of the buttons board is on the tail like extension. Probably when I try to cover the buttons board with the LCD+digitizer - the frame of the LCD slightly pushes the buttons board and the juts on the plastic buttons cannot be fixed exactly on the top of the actual buttons on the board. Anyway we are speaking about precise fixing something around 0.05 mm over something else, which is exactly same size... and in the same time you have to fix this without any visibility.
I will continue trying. If you can give me any other ideas - I will appreciate this.
Thanks
Click to expand...
Click to collapse
Do not rule out the LCD/Digitizer assembly as the china combos are prone to not the best accuracy of assembly as sounds like maybe LCD is mounted just a fraction too low on the digitizer perhaps.
Button board should be fixed via 3M style tape & most replacement boards come with tape ready for fitting.
worth making effort with button board to centre chassis to mount securely then mounting lcd to chassis without tape for a trial assembly & try and check for possible issues such as bent chassis or old tape not removed sufficiently or new assembly alignment not the best.
I would also recommend using original plastic button strip as the copy ones are not always good & have had experience with them before.

[Q] Touch screen and capacitive buttons not working!

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

[Q] nexus 7 broken screen question

So here goes. The glass on the top corner of my nexus 7 has cracked, rendering the top 5mm of the touchscreen inoperable. Luckily i am in a position where i have the resources to manufacture a custom housing for the hardware with a larger screen and touchscreen. My question is, does anyone have a pinout for the screen cable to allow me to make a cable to plug a different screen onto the mobo or is this not possible. Any answers are much appreciated. Cheers, andy

[Q] HTC HD2 Black screen after falling

My HTC HD2 with kitkat os falling from my hand and after that the screen shows nothing, my phone is alive and everything works like ringing vibrate alarm even touch screen and touch vibrate, but i see nothing and the display is dark.
whats my problem? can i fix it?
thanks for reply me

any body ????
muhama said:
My HTC HD2 with kitkat os falling from my hand and after that the screen shows nothing, my phone is alive and everything works like ringing vibrate alarm even touch screen and touch vibrate, but i see nothing and the display is dark.
whats my problem? can i fix it?
thanks for reply me
Click to expand...
Click to collapse
any body ????

probably need new screen assembly!
needs opening to check lcd connector to mainboard & if all connections good then new screen should be tried.
LCD & digitizer pre built assembly is only about $30 these days for decent ones but indeed not easy fit with some experience or good read up on procedure & good care when doing it.

Mister B said:
probably need new screen assembly!
needs opening to check lcd connector to mainboard & if all connections good then new screen should be tried.
LCD & digitizer pre built assembly is only about $30 these days for decent ones but indeed not easy fit with some experience or good read up on procedure & good care when doing it.
Click to expand...
Click to collapse
Thanks for reply me:good:
How can i open my phone? And where is connector located?
Do you have a link to view that?

Have a read of this thread for start
http://forum.xda-developers.com/showthread.php?t=1566179
Plenty more if do a search
Basically be very very careful, use plastic pry tool ONLY to remove back, start at top. 2 clips about 7mm in from top edges then once released work down right side, DO NOT stick any tools in near the volume key, if doing it right the back comes of very easy (2 pry tools are better as can keep one in top sstopping it clipping back in)
Once back off handle with care, rough handling breaks th spring contacts for antenna etc.
LCD from mainboad can be disconnected from mainboard without fully removing flex & is absolute best way do it.
I did write few posts on it so will try dig them up & link you.
If buy lcd/gigi assemble also buy a button board ribbon as they like only $3USD, with spare button ribbon you can easily plug new lcd/digi in & plug new button board ribbon into mainboard & hold a battery on it to do a test befoe sticking things together.
Also you likely damage ribbon if not careful so spare likely get used on rebuild.
Parts link is in HD2 Wiki
http://forum.xda-developers.com/wiki/HTC_HD2#Fixes.2C_Hints_.26_Tips

Need Help-Backlight only after new LCD Screen on G530

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