Develop Bugs

Keys Pressing, and whitey screen problems!!

I do not know if somebody faced this problems before or not:
1- The soft-keys, dial key, call drop key, and the scrolling keys; are always while pressing them for long time does not response until turning off the screen by pressing the power button then turning on again to keep working for awhile then same thing happen again.
2- The screen is sometimes fade to be completely white & brightness more, and everything hidden until turning off the screen by pressing the power button then turning on it again
If anybody knows how to fix this matter please provide me with the solution.
Thanks for all concerned

I had the same exact problem... I fixed it by getting a warranty exchange from AT&T!

I have the same problem! Unfortunately my phone is not covered by warranty. I think it's a hardware issue because I changed a number of ROMs and the problem persisted. I don't know what to do, it's driving me nuts!
Help anybody???

Good news!
Ok, as far as the key problem goes, using the PDF file about HTC TyTN where you can see how EXACTLY to disassemble and assemble the TyTN I took the courage to open up my TyTN and pull up the motherboard and clean everything up and close it tightly back. However I did not completely disassembled it as the manual shows because I did not want to remove any stuff that's glued like the rubber parts and the metal tape that holds the keyboard connector. So basically, I did not reach the part where the soft keys are, but somehow miraculously my keys are working nice again! I guess the problem was just loose connections and probably it was loosing contact somewhere because keys worked sometimes and then suddenly stopped.
Anyways, it's been 2 days now and the keys work perfectly and my TyTN is not so loose like it's going to fall apart as it was before!
P.S.
I haven't noticed the white screen problem also but it's been only 2 days and it wasn't happening so often before anyways.

This issue is known -there are threads in hermes section, search for white screen..
Its a harware issue with XILINX coolrunner(if I remember it right) on the front keypad below screen.. It propably has some bad solders under it -mine went so bad that it showed only white screen until I disassemled the unit and pressed directly the chip with my fingers
Then I bought a new circuit from cnn -at the moment it had those boards for sale, not anymore. That fixed my problem.
Among the threads someone got his/her phone to operate again by putting something between the cover and the chip..

I had the problem on my handset and managed to fix it by cutting up a piece of card..be it and old credit card or whatever to the size of the recess that the chip fits in...this pushes against it nicely and since then only had the problem reoccur once...then it was cured by just putting the handset into standby mode and back to normal again

screen problem when keyboard is slid out

hi all! couldn't find a similar thread here.. so here goes..
my BA has been working fine until yesterday, when i slid the keyboard out,
the screen turns reddish!
but it only happens when the keyboard is slid about 75%, beyond the top roy of keys..
when i slide it back, then screen turns back to normal!
i'm guessing there's a cable loose in there, some hardware prob?
haven't dropped it, nor installed any programs recently..

yes it is very probably flex cable malfunction

same problem here.... haven't dissambled it or anything, but when i slide the KB out like even just a bit, sometimes the screen whites out.. have to turn it off and on again for screen to return to normal (sometimes it works). and always, when the slide is moved even a few millimeters, the TS would be misaligned.

Same problem The screen turns white almost always now.. Think it will die soon. The flat cable to the screen can't be changed. I think the only way to solve this is by opening the cable and drawing broken contacts with liquid silver (used for tv remote control buttons).
Anyone got any other solution??????

same problem...in fact its growing nearing the part where i jus touch the slider to move out....im gonna be in helluva trbl wen this thing breaks....anyone help....

To be honest, I think that the only solution is to glue it when it's closed... :baby:

have the same problem here. i know its a flex problem. i just dont use the keyboard anymore so that it wont get damaged further.

Need help from an expert

So my phones earpiece began to cut in and out, which I found to be a chafed and broken flex cable. No biggie, I ordered a replacement piece and waited for it to show. As I waited the phone began to get worse, I lost the earpiece entirely, the leds stopped working as well as the sleep button. The screen, now only able to be woken by sliding, would not come on when slid out, but only once it returned..also the screen would shut off when I would slide it out again.
I have seen disassembled the phone again and installed the new cable and all is well, with one exception. The slide function of the screen no longer works, period. It will not wake, it will not rotate, and the keyboard doesnt illuminate unless I press a key. I have been through this phone 4 more times now and I simply cannot pin down exactly what tells the phone that it has been slid. I have heard talk of magnets, but found no sensor or magnet, I saw small contacts..that are all functioning properly. There is no cable or connection to the screen portion that connects to any sort of switch that I can see.
Does anyone know what triggers the slide?!

Sorry mate, im not an expert but I thought this may help.
https://fjallfoss.fcc.gov/oetcf/eas...e=N&application_id=259614&fcc_id='NM8RHOD300'
The link is to the FCC website showing links to internal photos of the phone, SAR values, micellaneous stuff, etc.
Maybe a different perspective of the phone might help.
Hope this helps you

An alternate way to 'Power On' HTC Desire?

Hi!
I managed to break my Power-button, while phone was off, and how I can't' really get it on again.
So my question is; Is there any alternate way of turning my HTC Desire on, instead of the Power Button?
Thanks in advance;
CjC

i dont know much about hardware hacking on the desire
but i think there isnt much you can change because this is so low level that no software hack could fix it
so your only opinion is you let it fix by customer support or by disassemble and fix it by yourself
as i said i am not very into that materia, so i could be wrong to but i dont think so ^^
best wishes

Hi!
Thanks for answer : )
Ye I already tried do disassemble it on my own, and from that I bent one of the pins to the battery haha : (
But I fixed it, but my power-button is still f***ed...
So I have a working non-working Deisre atm ^^

a buton is just a button.. if you can locate the button (well not the plastic, the phisical hardware) you will see that there are 2 wires coming out from it.
you just need to short circuit them (hey that's not a bad thing! that means making a bridge for let current pass even if the button is opened)
That can be DIFFICOULT, the solderings can be small or there cannot even be soldering but just copper pattern under fiber. In that case you can use a tiny knife to peel off the glass fiber for reveal the copper but can be dangerous, you can cut the copper extending the damage.
if you are good in electronic if you can turn it on with just a whire or a screwdriver as I says you can take a mouse button (as this http://www.soselectronic.com/a_info/img_data/h/dts31.jpg) and make it your default one, but it will be ugly, difficoult and maybe it will need some maintenance.
trying with the warranty is free and I think that it is valid!
let us say what they tell to you.
hope I helped you mate! ask more if you need

if you manage to boot your desire you are safe
that and in the boot menu is the only thing you realy need the power button
after that you can simply mod a trackpad to wake/unlock into your rom and use a widget to go to lockscreen
than you only have to watch your battery so your desire doesnt run out of power

Dallatorre said:
a buton is just a button.. if you can locate the button (well not the plastic, the phisical hardware) you will see that there are 2 wires coming out from it.
you just need to short circuit them (hey that's not a bad thing! that means making a bridge for let current pass even if the button is opened)
That can be DIFFICOULT, the solderings can be small or there cannot even be soldering but just copper pattern under fiber. In that case you can use a tiny knife to peel off the glass fiber for reveal the copper but can be dangerous, you can cut the copper extending the damage.
if you are good in electronic if you can turn it on with just a whire or a screwdriver as I says you can take a mouse button (as this [LINK]) and make it your default one, but it will be ugly, difficoult and maybe it will need some maintenance.
trying with the warranty is free and I think that it is valid!
let us say what they tell to you.
hope I helped you mate! ask more if you need
Click to expand...
Click to collapse
Yes you did help alot with this answer, but unfortunately, I ain't no electrician!
Your advice with the picture was good, but I don't really know where to get one of thoose. I ain't no genius when it comes to smarth-phones, and my I broke the void on my phone so...
But I didn't quite udnerstand the short-circuit thing.
can you explain?
There are no wires coming out of the button :\
crendot said:
if you manage to boot your desire you are safe
that and in the boot menu is the only thing you realy need the power button
after that you can simply mod a trackpad to wake/unlock into your rom and use a widget to go to lockscreen
than you only have to watch your battery so your desire doesnt run out of power
Click to expand...
Click to collapse
Hehe, I know, but how can I boot it with no powerbutton?
Nor can I enter recovery-mode with no powerbutton!
But thansk for your answer!

well sorry i'm half electrician so i can explayn things in difficoult way.
well starting on the short circuit thing:
it means close the contact, in simpler words when you press the button it just makes 2 contacts to touch each other
so the sys will see that there's a current flow and he thinks ("uhm button is closed better startup")
I'm watching some photos at desire breakoff and i can see that it is a sort of smd in a small case.
So now I may suggest you to don't make nothing, finding the contacts for who have a medium knoweleadge of electronic devices can be pretty simple, and using a screwdriver it can turn your phone on.
I cannot tell to you if it's possible coz I haven't teared it apart yet.
BTW after the first startup you will need an application that will let you lock and unlock the phone via the volume key (it exist) and eventually some jumpers for turning it on again. it will be pretty scary for who is not "in the field"
by the way i found this thing
http://mobilehq.com.au/productDetail.aspx?productID=20225
it may interest you... and the photos are too small for see the button type, especially from behind where is there thay maybethe button is soldered on the board by Those things (URL)
just locate the correct 2 and it's done. usually ther are just 2 on mouses.
oh the micro buttons are reperible in any electric store (even smaller but without the "push and he will come up by himself" effect) or inside a pc mouse (broken is better) switch never* broke down on a mouse and there are at least 3
but they may be too big.
what about the warranty?
_
thanks button if i'm helping helps

Possible temporary solution
So i know this is quite late but I stumbled on this trying to find a solution and I'm sure there's a chance others might too. I have this issue on my HTC 610, and I found that pressing and holding down the volume buttons at the same time turned it on. Hope this helps anyone else who has a similar issue

[Q] Screen not working after opening back panel

Hi everyone.
So Ive been having problems with my glide keyboard being loose. everything else was working fine tho. today it completely fell off, only the screen cable/ribbon were holding the two pieces together. so i decided to take apart the back panel and reattach the keyboard. a few screws to take take out and put in. a simple fix right? wrong! after finding the screws to replace the missing ones that caused the keyboard to fall away, and putting everything back in place... THE SCREEN WOULDNT TURN ON! the phone did light up and vibrate but the screen is completely not alive. i took everything apart again and even double checked the screen connection, tried again and lo, the screen still wasnt working...
i dont know what to do....is there a possibility that i damaged the ribbon, or i need to reset something... what could be wrong?
been searching for fixes all day and came up with nothing... any help would be appreciated :fingers-crossed::fingers-crossed:

ribbon
Try to change the ribbon if it's not that expensive. Maybe because of the stress on it, it went bad.

The ribbon cable is around 60$ us, i broke mine trying to replace my ear speaker
Sent from my SGH-I927 using xda app-developers app

Monad_Mind said:
Hi everyone.
So Ive been having problems with my glide keyboard being loose. everything else was working fine tho. today it completely fell off, only the screen cable/ribbon were holding the two pieces together. so i decided to take apart the back panel and reattach the keyboard. a few screws to take take out and put in. a simple fix right? wrong! after finding the screws to replace the missing ones that caused the keyboard to fall away, and putting everything back in place... THE SCREEN WOULDNT TURN ON! the phone did light up and vibrate but the screen is completely not alive. i took everything apart again and even double checked the screen connection, tried again and lo, the screen still wasnt working...
i dont know what to do....is there a possibility that i damaged the ribbon, or i need to reset something... what could be wrong?
been searching for fixes all day and came up with nothing... any help would be appreciated :fingers-crossed::fingers-crossed:
Click to expand...
Click to collapse
What was the result? I have the same issue and replaced both screen and ribbon but the display does not light. Only the lower shortcut lights up (home, search, back etc.).