Replaced the digitizer, Smartphone only boots when not in housing - HD2 General

Hi guys,
hopefully somebody can help me with the problem I have with my beloved HD2. I've successfully replaced the digitizer within my HD2. My problem is though, that the phone only boots when it's not in its housing. When I take the mainboard out of the phone's housing, the phone boots just like it should. But as soon as I put the mainboard back in, the phone doesn't boot, it only vibrates and then shows a black screen (with the backlight turned on).
Any ideas on this? I'm kinda desparate right now . Any help is highly appreciated.
Thanks in advance

propably bad used screen without scratches! happened same.. just digitizer dont working when in housing..

HD2
HD2 the best of the best

May a bad cable connection be the reason?
Or a slack joint?

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hi
hi i too have the same problem i spent 3k to change its display and touch pad and now he sasys theres a problem with a strip and demanding 1k . now i feel like thrashing the phone . dies any body know the solution for this ... it boots magldr and then showsup android logo and restarts this is what it happens continuosly

Related

Broken screen, where can i get a replacement?

Guys,
My partner just closed my phone in her car boot. It works fine which is good however, half the screen is cracked and dead not good. Will it be chaeper to find a replacement screen, by another Trinity or move to something new.
Where could I by a new screen?
I appricated your comments.
Rich
think i have answered my own question...
http://cnn.cn/shop/p3600dopod-d810-screen-p-1734.html?osCsid=d538dc0645483ca7551cfc78c4c9fab2
anyone now anywhere in the uk?
do I need special tools to fit this?
Hello just for information,
I broke my trinity screen and I baught a new screen to a HK seller and i replace it.
I had already flash the firmware (faman 3.6 full) before changing the screen.
So everything seems ok when I put the phone power on but As soon as I put the creen off, I am unable to put it on it appears every time in a complete white screen !!!! to have something on the screen I have to reboot the phone.
I just reflash the phone again with faman 3.6 and it's still the thame problem completly white after turn the screen off then on ...
I try also an official orange WM5 (gps active) and the screen work's well i try after to switch again in WM6 and it doest work :white screen again ...
Can every one help me ?
@ Rich: Check the 'How to dissamble the Trinity' thread. Are your sure that the LCD is broken ? Could also be just the digitizer (USD 8 at cnn.cn.shop).
If you succeed to dissamble the display you should be able to attach a new digitizer.
The only problem are the two black levers ... (one for the display cable, one for the digitizer).
Good luck
Christian
I cracked my Trinity screen with a bad golf swing. Then I bought a replacement screen on ebay, found a disasembly guide, took my trinity apart, replaced the screen, put everything back together, and it works fine! cost me 70 EUR to fix it.
do it following the disassembly guide - taking the trinity apart is rather complicated, you will not figure it out by yourself.
Sometimes I wonder what the engineers drink before designing such complex assemblies!

Dropped my Wizard - White screen

Hi to everyone.
I dropped my wizard and lcd broke so I bought a new one and put it on. The problem is that although it takes phone calls and it syncs to pc, the screen is always white with nothing written..only a white screen. I do not know whether another problem occured besides the broken lcd. I tried to disassemble and reassemble it again but with no success. Any help please?
Hi, If my understanding is correct there are 2 versions of LCD for the Wizard. Are you sure that you have the right one? I'm sorry that I am unable to offer any further advice except to say that if the phone 'phones' and 'syncs' the basics must be working. Also the white screen means that the backlight is working - the problem is the LCD drive. Perhaps worth checking with your replacement supplier that they sent you the correct part?
Good luck!

my touch shows only white screen

hay from today morning my htc touch shows a white screen and a crack on the bottom corner of the screen.i am sure that it dint fell down.
then what may be the problem?
anyone knows pls tell me...
white screen?
When you turn on your phone, there is no smart mobility.
Crack?
Is that an LCD problem?
i have the same problem with the WHITE SCREEN. bought my ELF 3450 second hand over the net. i am from the Philippines by the way and HTC units are not yet very common here and also the parts/accessories. it worked fine for about 3 months with minor problems such as Auto-Restart/Auto Power On/OFf which was solved using the "plastic on the OMAP chip method" - tnx for the forum for the info by the way and charging problems which was also solved by buying me a aftermarket charger. but recently the problem of AUTO OFF occurred again until it did not work at all. so, i tried to check the Plastic over my chip but to no avail the fone was dead. so, i decided to head to one of our local cellphone repair shops and have my OMAP heated thinking that maybe there are just contact points inside who became loose. when we tried to power on it was good for a few minutes then i noticed the screen went darker and darker and then it was all WHITE. we restarted it but it's just WHITE. tried to send messages and call it but there is no response from the fone. i'm afraid i toast it bad or may be it's just the LCD who got toasted, i am clueless.
CAN SOMEBODY PLEASE HELP ME WITHMY PROBLEM. CAN I GIVE LIFE BACK TO MY ELF? WHAT'S THE CHEAPEST & BEST SOLUTION TO THIS? THANX ...
Generally white screen problem are caused by defects in flex connecting the LCD to the mainboard or the connector itself. Try to disconnect and reconnect the LCD, if doesn't work - replace the LCD.
kimberhunt said:
i have the same problem with the WHITE SCREEN. bought my ELF 3450 second hand over the net. i am from the Philippines by the way and HTC units are not yet very common here and also the parts/accessories. it worked fine for about 3 months with minor problems such as Auto-Restart/Auto Power On/OFf which was solved using the "plastic on the OMAP chip method" - tnx for the forum for the info by the way and charging problems which was also solved by buying me a aftermarket charger. but recently the problem of AUTO OFF occurred again until it did not work at all. so, i tried to check the Plastic over my chip but to no avail the fone was dead. so, i decided to head to one of our local cellphone repair shops and have my OMAP heated thinking that maybe there are just contact points inside who became loose. when we tried to power on it was good for a few minutes then i noticed the screen went darker and darker and then it was all WHITE. we restarted it but it's just WHITE. tried to send messages and call it but there is no response from the fone. i'm afraid i toast it bad or may be it's just the LCD who got toasted, i am clueless.
CAN SOMEBODY PLEASE HELP ME WITHMY PROBLEM. CAN I GIVE LIFE BACK TO MY ELF? WHAT'S THE CHEAPEST & BEST SOLUTION TO THIS? THANX ...
Click to expand...
Click to collapse
You warmed the OMAP? Interesting....
This problem sounds really complicated.
And im quite surprised of your 'warming' method.
I've had the exact same problem combined with the fact that my touch was resetting constantly. I was about a minute away from throwing it out of the window when I tried the plastic-piece-on-omap processor-technique described in one of the threads here. It solved the rebooting problem, but not the white screen issue. After a very frustrating couple of days where the screen started to blink and shake and then eventually turned to white alltogether, I lowered my brightness to the second stop from start, and since then I haven't experienced the white screen anymore. I believe it is heatrelated.
Whilst not being a full solution to the problem, at least it renders the phone usable.
Hope this helps anyone.
Heating the device very seldomly solves anything, but causes more problems that you originally started with.
iam using htc touch (p 3450) for nearly 18 months . (bought & using it in india ) my hand set fell two times in water and about 15 times fell on the floor (from shirt pocket) . still its working fine .
and iam using "opera mini " for browsing the internet . for some sites iam using "opera mobile " . when iam on opera mini , continueously for long ours , suddenly it turns white . never come to normal screen unless restarted . but it happens sometimes , may be because of memory or heating up of some H/W .
Hi hotchamo,
my htc touch elf hat a similary issue, and my father just "wringed" it gently until the white screen disappeared. You should try it carefully, since it may help and it won't harm. Just take in in both hands and turn them in the opposite direction, so that the case gets slightly twisted.
If that doesn't help you should open it and check the LCD flat cable connector...
Best regards,
scheutak
Again - flex connector problem. 'Wringing' it gently will eventually result in your LCD cracking, by all means - go for it, it will solve your white screen problem. Permanently.

[Q] Unknown Error please help

hello everyone , i have a mytouch 4G that had the good chip and good display , so that has nothing to do with the problem . my actual problem is that i attempted to do a digitizer repair on my own , and it went successfully , i put the phone back together and i turn it on , the phone vibrated and made boot sound but the screen did not light up, it remained black , i opened the phone like litterily more than 6 times to try disconnecting and connecting the lcd connector and nothing.
to this day it still doesnt light up at all, and now after trying at it one more time the phone doesnt even boot anymore , i cannot turn it on by power button , and when i connect the charger the light is orange , phone vibrates once , then turns green . this is the most i can get out of my phone .
when i was repairing my phone i used a hair dryer to soften up te adhesive , which is the correct way to do it right ? i put the hair dryer directly to the lcd if that probally done anything . and there is a chance i probally scraped a ribbon thats above the lcd on the front when i tried to pry it out
should i just give up on my phone ? or should i try to get professional help and get ready to chuck up 100 bucks for a repair , i am asking if there is nothing i can do.
p.s. i would realllllly like to avoid buying a lcd , cus it would suck if i spend 20-something bucks on a lcd and just to have find out its something else (since the phone currently wont even boot)
the phone probably won't boot b/c you may have ripped out the flex cable for the power button. i made this mistake myself a couple month ago and it cost me like $20 to get a new one. as for the lcd, i'm not sure. you may have to get a new one

HTC HD2 Touch screen stopped working

So I bought a HD2 with bad touch screen. The issue was the very common one that every one knows, red button that was poking into the touch screen flex cable. I opened up the phone and fixed the issue and touch screen was working perfectly fine. In the process, unfortunately, I chipped a little edge of the front glass/digitizer. It was not a big deal as phone was still working fine. But I decided to buy a new front glass.
When my new front glass arrived, I separated the digitizer/front glass from LCD, but then half of my LCD got corrupted. So I ended up buying an LCD too!!!
Now comes the issue: when I put the phone together, touch screen doesn't work at all. I have tried all combinations of NEW / OLD digitizer and NEW / OLD lcd. Nothing works. I wonder if anyone can help me figure out why?
P.S. When testing, I happened to connect the phone to my 5w wall charger directly connecting it to power pins (without battery installed). Would that be why I lost touch? Is the touch issue now because of motherboard that was directly connected to adapter, not getting power from its designated battery?
have you tried the old lcd with old digitizer (which was working)?
tried it before replacing?
did you made some change to the software before replacing?
I currently have this problem too while trying to revive my old- almost 3 years inactive- HD2 with new touchscreen, and still trying to figure out where is the problem
b3rvirus said:
have you tried the old lcd with old digitizer (which was working)?
tried it before replacing?
did you made some change to the software before replacing?
I currently have this problem too while trying to revive my old- almost 3 years inactive- HD2 with new touchscreen, and still trying to figure out where is the problem
Click to expand...
Click to collapse
Yes I had tried the old LCD, and that didn't work either.
I installed a WiFi Keyboard on it.
Did you resolve this issue?

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