Hello to everyone
I just brought new keypad (hd2 button : lock,back,home....) and the flex cable and i put it on the keys are not pressing properly. I think the alignment of key flex cable is not correct.... so anyone tell me how to put it properly so that my hd2 key work
Thanx inadvance
rahul.oberoy said:
Hello to everyone
I just brought new keypad (hd2 button : lock,back,home....) and the flex cable and i put it on the keys are not pressing properly. I think the alignment of key flex cable is not correct.... so anyone tell me how to put it properly so that my hd2 key work
Thanx inadvance
Click to expand...
Click to collapse
it is very sensitive. I have changed it recently. there are 2 pinholes on the sides to put it in the right place, but it has near 0 tolerance in dimensions. I pushed the flex with use of medium screwdriver. just oush it to the top, place screen on it's place and try. Tried a few times and it works
yaro666 said:
it is very sensitive. I have changed it recently. there are 2 pinholes on the sides to put it in the right place, but it has near 0 tolerance in dimensions. I pushed the flex with use of medium screwdriver. just oush it to the top, place screen on it's place and try. Tried a few times and it works
Click to expand...
Click to collapse
I triebit too but nothng happn.. anyway dude thanx
could also be due to new button board flex not being that close a copy or digi is off alignment on LCD making buttons sit incorrect.
Some of the 2-3USD button board flexes on likes of eBay are awful quality ...
Related
Hi all, my Trinity's hardware buttons doesn't work.
The 2 softkey hardware buttons, the red and the green button, the ok button and the Start button seems to be broken also if they have backlight. All the others buttons are ok.
I've tried to softreset, hardreset and flash the ROM (I'm using last Ervius ROM). After flashing for the first time the buttons were ok for a littewhile but now they seems to be broken again even after several flash. I've also tried to downgrade to wm5 but nothing change. I think that is an hardware issue and I'm going to try to fix it by opening my Trinity hoping that is just a flat connector pluged out but if someone else has experienced the same problem and has to suggest me something is really welcome.
Campo said:
Hi all, my Trinity's hardware buttons doesn't work.
The 2 softkey hardware buttons, the red and the green button, the ok button and the Start button seems to be broken also if they have backlight. All the others buttons are ok.
I've tried to softreset, hardreset and flash the ROM (I'm using last Ervius ROM). After flashing for the first time the buttons were ok for a littewhile but now they seems to be broken again even after several flash. I've also tried to downgrade to wm5 but nothing change. I think that is an hardware issue and I'm going to try to fix it by opening my Trinity hoping that is just a flat connector pluged out but if someone else has experienced the same problem and has to suggest me something is really welcome.
Click to expand...
Click to collapse
I experienced this myself, and replaced this item:
http://cnn.cn/shop/p3600dopod-d810-keypad-p-1825.html
HPN
keys are stuck
Mine also, but solved it after a couple of days (temporarily). The hardware buttons problem seems to be related with one of the keys stuck. If one of those keys is stuck none of the others work. I tried "fast" double clicking on one key at a time to unstuck and it worked for me. Mine has been working for two weeks with no problem. Anyway I ordered that part "just in case".
So before opening your trinity try to unstuck the keys. It seems to be related with humidity conditions and carrying the phone in the pocket (just a guess).
hpn said:
I experienced this myself, and replaced this item:
http://cnn.cn/shop/p3600dopod-d810-keypad-p-1825.html
HPN
Click to expand...
Click to collapse
Thanks !
n0t said:
Mine also, but solved it after a couple of days (temporarily). The hardware buttons problem seems to be related with one of the keys stuck. If one of those keys is stuck none of the others work. I tried "fast" double clicking on one key at a time to unstuck and it worked for me. Mine has been working for two weeks with no problem. Anyway I ordered that part "just in case".
So before opening your trinity try to unstuck the keys. It seems to be related with humidity conditions and carrying the phone in the pocket (just a guess).
Click to expand...
Click to collapse
I'm going to try this becouse during the last 4 days sometimes the buttons work so.... thanks!
Ok, nothing work.
I've also tried to open the device but looking behind the buttons pad fortunally/unfortunally there isn't an evident hardware problem.
The only solution is to replace the pad.
Hi to all.
I have had buttons not working on my trinity for some time. was tempted to send it back for repair but i did not want to be without my phone and did not want to have to stick the old wm5 rom back on!!
I took my trinity apart too see if i could see anything wrong. and got it down to the keypad. one thing i did notice is that there was a lot of dust. also around the small disks that provide the buttons, there are 3 small holes in the sealing sheet. seems that the construction of the switch array is circuit board at the bottom, with small tin disks on top, all held in place with a thin plastic sheet.
The tin disks 'pop' inside out when you press the buttons, making the contact for the switch. On the old nokia phones, these disks got deformed and this would make the button work but with no click. I had a click but no button operation, and with the holes, and all the dust i found, i figured that it must be dusty contacts.
so here is how i managed to fix my buttons for free:
1, strip the phone to get to the keyboard circuit (i used this link clicky)
2, clean all the dust from the buttons
3, start to tease the plastic film from the front of the board (i used a sharp knife but mind your fingers and take care not to damage the board)
4, once one corner is up you should be able to slowly pull the film up (take care not to damage the disks as the plastic comes up but make sure the disks stay on the plastic sheet)
5, dont pull the sheet totally off otherwise you will have a job getting it all to line up after.
6, get some alcohol or head cleaning fluid on a cotton bud and clean all the gold contacts, as well as the insides of the discs.
7, slowly rub the plastic film to put it back where it came from, taking care to get the disks in the center of the gold contacts.
8, rebuild and test
All being well you should have working buttons again!!! It seems the design of the buttons lets dust inside the workings.
Hope this helps someone with clicking buttons but no action!!!
Hi all, my volume buttons stopped working after I ripped that part of the flex ribbon cable when I opened it up to replaced the touchscreen.
Anyone know where the pins for the volume buttons are located? I don't want to spend $ on a new flex ribbon, and I have all the soldering tools lying around...
Thanks.
Hahutzy said:
Hi all, my volume buttons stopped working after I ripped that part of the flex ribbon cable when I opened it up to replaced the touchscreen.
Anyone know where the pins for the volume buttons are located? I don't want to spend $ on a new flex ribbon, and I have all the soldering tools lying around...
Thanks.
Click to expand...
Click to collapse
You can identify your needed pins on main flexboard connector with a digital multimeter...
Regarding soldering, I wish you "Best luck"!
Hahutzy said:
Hi all, my volume buttons stopped working after I ripped that part of the flex ribbon cable when I opened it up to replaced the touchscreen.
Anyone know where the pins for the volume buttons are located? I don't want to spend $ on a new flex ribbon, and I have all the soldering tools lying around...
Thanks.
Click to expand...
Click to collapse
The volume buttons are parts of the main flex and cannot be resoldered. There are no pins and you cannot reattach torn flex. You need to replace the main flex, it is a large part and contains the side volume flex. But of course, if you believe you can locate the pins and solder - by all means, go for it!
http://www.ebay.com/itm/HTC-HD2-FLE...328?pt=LH_DefaultDomain_0&hash=item2a12a3a2a8
enigma1nz said:
The volume buttons are parts of the main flex and cannot be resoldered. There are no pins and you cannot reattach torn flex. You need to replace the main flex, it is a large part and contains the side volume flex. But of course, if you believe you can locate the pins and solder - by all means, go for it!
http://www.ebay.com/itm/HTC-HD2-FLE...328?pt=LH_DefaultDomain_0&hash=item2a12a3a2a8
Click to expand...
Click to collapse
It can be done if he's a soldering wizzard!
Here is how soldering volume keys
Hi . I changed my tmobile hd2's screen .
After change volume keys not working. So I can't update any rom.
Because I can't enter recovery.
How can I upgrade any rom without volume keys.
Can "CWM recovery touch" solve my problem.
Can I upgrade any rom with cwm touch recovery without volume keys
im not really sure about how to initally get into the recovery withour the volume keys, but if you can some how, a touch CMW recovery will work
it has directional keys on the bottom of the screen for you to navigate around
just flash it like you wud a normal recovery with what ever set-up size you need!
http://forum.xda-developers.com/showthread.php?t=1419733
On the non touch cwm (some of them anyway) you can use home and menu hard keys to scroll as well as volume.
But as already mentioned,you can't get into recovery so having touch or alternate keys won't help.
matcoder said:
Hi . I changed my tmobile hd2's screen .
After change volume keys not working. So I can't update any rom.
Because I can't enter recovery.
How can I upgrade any rom without volume keys.
Can "CWM recovery touch" solve my problem.
Can I upgrade any rom with cwm touch recovery without volume keys
Click to expand...
Click to collapse
DO NOT FLASH ANYTHING WITH DAMAGED VOLUME KEYS!!
I flashed a splash screen on mine after damaging ribbon to volume keys and now I have a main board that will NOT recognize these keys even after replacing the broken part, I cant say yours will do this, but mine did soo...
I have replaced two screens on mine, the ribbon to the volume rocker is very delicate i tore two of them on my first screen replacement ( i buy bricked HD2s' for screens). I have had my HD2 now almost two years and no parts are original. Just recently i FINALLY bought one with a busted out screen so i could replace just the main ribbon assembly and a main board that can use volume keys.
This main ribbon sits under your regulatory label ( with the FCC shiz and serial #'s) its integral with your GPS radio, camera assembly, and of course volume rocker keys.
This can be replaced with only moderate difficulty, there are videos even from HTC that explains how to disassemble/reassemble everything safely and in order.
Disassemble
http://www.youtube.com/watch?v=cL-jnUKufC4
Reassemble
http://www.youtube.com/watch?v=t8Q7mXdcJ54&feature=channel&list=UL
I found those after I ripped not one but two volume key ribbons....
To do this you need to pay attention to how the coaxial cables for bluetooth(white) and GPS(black thin) sit, to avoid a few hours of trial and error. getting everything to fit again.
First disconnect the coaxial from blutooth be gentle now, its the white cable at the left of my first image, that phone is nowhere near assembled remember how your cable was positioned. remove and unplug the speaker as well as the vibrator as you move the white cable out of the way, stop pulling it when you hit the screw hole at the top right corner of regulatory label.
Just above where the screw hole is you should see another plug like the blutooth coaxial only black disconnect that and leave it there. try to leave the thicker black cable that leads to camera connected, its ok if it comes out but its a pain to get connected again.
When the top right of your phone looks like my second pic your ready to remove the screw keeping the gps in place thats the top right screw, silver.
disconnect the camera cable from the main board its right next to the battery terminals, the only plug there and hard to miss behind where your simcard goes.
This is important..... right behind the volume keys is the groove thats keeping those coaxial and camera cables in place, under those is the ribbon leading to volume rocker. taking note of how they fit remove these cables from the groove 4th pic
Sorry about the detail cameras are less than perfect on ICS builds and im a terrible photographer on top of that. you must understand that there is a black tape holding those wires together near the mother board, thats right where the volume ribbon is so be careful when you get to that. i just cut/tear the tape holding wires in place, also one of the coaxial cables plugs under the main board right there as well be careful not to disconnect that, you wont hurt anything but its a pain to get it back.
after cables are free from groove you can remove volume rocker. rocker board is held with adhesive just like the camera up top. using fingernail pry the board away from its housing, when its loose from the housing its glued to just let it sit loose, be gentle while getting that loose.
now for the gps/camera, you can fit a small flat head screwdriver between edges of gps board and the plastic of the phone casing, the gps board has clip holding left side so go from the right or the same side that screw was in.
the camera is only adhered so you can put pressure to wherever you feel comfortable its actually pretty solid i have done it a few times and never harmed it.
peel it like you would a sticker down to the main board where it connects under the sdcard then pull it straight back. the last image is what the assembly looks like in tact so have an idea of where not to put too much stress when peeling it.
again DONT FLASH ANYTHING IF YOU RIPPED RIBBON TO VOLUME ROCKER!! This may wreck your main board as it did mine and you'll be stuck on sd builds until you find another main board....
HD2's with busted screens go for about $60-80 off ebay shipped. send me message if you have any q's, also that ribbon/camera/gps assembly in last picture is tested by me and fully functional, also much cheaper than a busted screen HD2 ........
Hi mrbox23,
I believe I have flashed my HTC HD2 (or at least tried) and now I can't get past the HTC splash screen and can't initiate the bootloader!
Hi opened the HTC HD2 and found that the ribbon/flex to volume rocker is cutted!
Now, according to your post it's probable that if I replace the whole main flex I won't be able to initiate bootloadr because the mainboard won't recognise the volume buttons?
Another question is: you said "This may wreck your main board as it did mine and you'll be stuck on sd builds until you find another main board...." this means that I can still use my HTC HD 2 using the sd memory card only with some build? If so can you tell me, or at least, point out some post where to do it? Because in every post that I saw it is necessary to be able to initiate the bootloader!
I would be very gratefull if you could help me on this.
Best regards,
calcaneo
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.
Hi,
I just recently disassembled my HTC HD2 to replace the digitizer + lens and now it works, but I believe I may have scratched the LCD during process because now there are scratches/blurring on the top right portion of the screen (as seen in this pic imgur.com/vYjbn)
I just want confirmation that it definitely is the LCD that's causing the issue as I'm about to order one to fix my mistake, or if it's some other component that I overlooked.
Also, the up volume button doesn't work but the down one does. I've tried probing it with tools (since I lost the yellow/black bumper thing), but it's unresponsive no matter what. Anything I can do about that?
Thanks in advance!
cracked LCD, new LCD needed ...
Yellow black popper cap is needed as that is the button ...
Mister B said:
cracked LCD, new LCD needed ...
Yellow black popper cap is needed as that is the button ...
Click to expand...
Click to collapse
The bottom one works without a button however, when I probed it with a flathead. For some reason the top one doesn't work. I don't think not having the button is the sole reason, perhaps a link was broken or shorted.
Black part in cap is the contact pad to bridge the points on the button board, without the cap the button has no feel & no function. Never seen volume work when missing & I come across a few that have been missing or temporary missing during assembly.
Mister B said:
Black part in cap is the contact pad to bridge the points on the button board, without the cap the button has no feel & no function. Never seen volume work when missing & I come across a few that have been missing or temporary missing during assembly.
Click to expand...
Click to collapse
Either way, thank you for the quick replies.Your help is appreciated.