Database Develop

White screen after i replaced it???

i replaced my kaiser screen and the only thing that i got was a white screen so i was wondering if someone here had the same problem and got it working properly again.

Check on the Kaiser thread. Someone posted the same issue, and I think his screen connection wasn't tight, and it came loose.

don't think thats the problem connection seem all okay but if you could find the thread link please post it.

http://forum.xda-developers.com/showthread.php?t=346349&highlight=white+screen

thx but no one posted a solution...

Provide more info...
did it turn white immediately after the screen install or did you try to install a ROM or what?
If white right away, then I have bad news for you... you will need to recheck your connections... all two of them..., I know it is pain in the Ars but it is needed.
If you attempted to install a ROM and then the white screen, then it is a Software issue. To track back, do a hard reset and see if you get somewhere. Look in the wiki section for hard reset instructions.

yeah it turned white immediately after i installed the screen like in the picture
http://img338.imageshack.us/img338/619/clipboard8lm3.jpg
but when i put my old screen back i get the same as the guy in this thread
http://forum.xda-developers.com/showthread.php?t=358310&highlight=washed+up+screen
i even putted a new flex cable in

Ribbon Connector
I had the same thing happen with my wizard a while back. Make sure the ribbon connection is in all the way. Assuming the ribbon on the kaiser has the same type of connector as the wizard, there is a piece of plastic that you lift up to unlatch the ribbon, make sure that bracket is open, then stick the ribbon in all the way (it went in farther than I would have expected) and then push the little bracket back down to clamp the ribbon down to the leads. Make sure the ribbon is perfectly perpendicular to the clamp also (not entering the connector crooked). And maybe check to make sure that you are routing the ribbon correctly, where it is not being pullde out or loosened when you open the screen. I'm pretty confident that your problem lies somewhere in that ribbon connection. Anyhoo, good luck. I'd take you some pics but I just gave my wizard to a friend & I don't wanna open my kaiser. Yet.

i have a similar problem, any ideas on this?

sWuRv said:
I had the same thing happen with my wizard a while back. Make sure the ribbon connection is in all the way. Assuming the ribbon on the kaiser has the same type of connector as the wizard, there is a piece of plastic that you lift up to unlatch the ribbon, make sure that bracket is open, then stick the ribbon in all the way (it went in farther than I would have expected) and then push the little bracket back down to clamp the ribbon down to the leads. Make sure the ribbon is perfectly perpendicular to the clamp also (not entering the connector crooked). And maybe check to make sure that you are routing the ribbon correctly, where it is not being pullde out or loosened when you open the screen. I'm pretty confident that your problem lies somewhere in that ribbon connection. Anyhoo, good luck. I'd take you some pics but I just gave my wizard to a friend & I don't wanna open my kaiser. Yet.
Click to expand...
Click to collapse
hmm i think i already tried it. i even putted a new ribbon in but it doesn't hurt to try it again...

problem solved screen wasn't the same type as the old one a repair store fixed it. so the number on the screen gots to be exactly the same as the old one

Can anyone help me?

Hi i have had an x1 since august but within a month its been dropped and then it was unable to show the screen, i opened my device to try and fix my problem but messed with nothing whatsoever, when i put everything back together it wouldnt even turn on anymore! all it did was charge and when it was fully charged there was a red light. can anyone help me? please im desperate to fix my phone. My first paycheck was spent on this and i loved it despite the numerous flaws! also i havent charged it in over 2 - 3 months. Also when i opened it the tape that connect the rear and the front is kind of messed up, would that effect anything?

The tape that connects the front and the rear is the cable for the screen, so if it's messed up, you might need to get a replacement.

here is a pic, the red part where its circled is where i think the problem is, it looks ripped off, i did have a hard time opening and putting it back together the first time also.

Sounds like (Or rather, looks like) you're screwed, as far as I can tell, if it's really ripped. Otherwise attempt to clean the contact points with some cleaning alcohol and Q-Tips - something might have made it's way in when you disassembled the unit and blocked the electrical signals.

ill try it, but if that doesnt work, would i be able to replace the flex ribbon? would acteone work?

got this checked out by my friend, he told me its the flex ribbon cable, thanks for the help btw. Does anyone know the cheapest place to get a flex ribbon cable from?

Still would like confirmation if its my flex ribbon cable before i spend 40 bucks on a new one. thanks!

Hi, I am new to this forum. Sorry for posting here but I think I have similar or same problem with my xperia. Few days ago I drooped my xperia and then I could not turn it ON. I opened unit, the flex cable was detached.
After attaching the flex cable. I could turn the unit and it booted normal but no response on touching screen I even tried to align it but it did not respond. I turned off the unit. After trying turning it back ON only back light of the screen turned on (no sony logo, no xperia logo no winmo).
I tried to turn it on few times but same result. Even tried to soft reset and hard reset it but no difference only back light. Is it because of flex cable or because some thing else? I can`t even go in to 3 color screen. Please help. Sorry for my bad eng. Thanks.

HD2 Repair

Hey guys,
The USB port of my HD2 broke off and I was forced to replace the motherboard. When I assembled the HD2 again, I could immediately see that there was something wrong with my screen. The screen couldn't display full color (only bright red/orange/white/dark green/cyan accents). Also, the 'hang-up button isn't responding anymore after I replaced the motherboard (and flexcable).
What happened? Is there something wrong with the lcd display or did something go wrong when I (dis)assembled the phone? I took the motherboard and the flexcable from another HD2 that had a broken display.
Thanks in advance.

bilaba70 said:
Hey guys,
The USB port of my HD2 broke off and I was forced to replace the motherboard. When I assembled the HD2 again, I could immediately see that there was something wrong with my screen. The screen couldn't display full color (only bright red/orange/white/dark green/cyan accents). Also, the 'hang-up button isn't responding anymore after I replaced the motherboard (and flexcable).
What happened? Is there something wrong with the lcd display or did something go wrong when I (dis)assembled the phone? I took the motherboard and the flexcable from another HD2 that had a broken display.
Thanks in advance.
Click to expand...
Click to collapse
So you completely voided your warranty through HTC and tried to fix the device yourself, then screwed it up. I'd still say send it to HTC and ask for a repair. I don't know if they'll do it or not, unless you used official parts. I know they do out-of-warranty repairs, but they'll charge you.....

Yep you screwed up the repair, those ribbon cables need a delicate touch & any handfisted moment ends up with what you have got now ...
Another careful strip & inspection of all ribbon connectors is needed ...

I bought it as a second-hand phone. The guy didn't give me a reseat and the HD2 was flashed a WP7 ROM.

For the button problem, how are you turning your phone on without that button? do you hear/feel it click when you press it? If not its just misaligned.the buttons are on a flex ribbon cable with two holes on each side. it fits on the plastic middle frame of the phone which has two small spikes coming out of it... it has to be perfectly placed for your buttons to actually click..
if the flex ribbon is broken however you can buy one off ebay for arround 10$ any will do, mine is not original works fine..
for the screen you could have messed up the lcd, did you separate from the glass-digitizer? if you did you probably screwed it up.. its not a easy thing to do.. also was not necessary for your repairs
the connection to the motherboard might not be all the in and clipped which might cause your problem... (being that two of the little pins provide voltage and ground while all the others provide data information if one of those pins is not in all the way a piece of data might not be displaying for example a color. Never seen that happen its theoretically possible thou)
well I have only opened my phone 3 times and dont claim to be a expert.. but this is my take on it... Good luck!

@pablow Thanks for the detailed response.
The HD2 is only turned on, after I place the battery. Otherwhise it won't start.
I hear a click on the (broken) 'off' button, everytime I press it. I also noticed that the inside of not all of the 'spikes' are empty. I can see a bit of the flexcable in the spike of the broken 'off' button. The spike of the (working) 'call' button is empty.
I think that the flexcable hasn't been connected securely to the motherboard. I'll try connecting everything again tonight.

not that it makes much difference but HTC wouldn't of fixed it through warranty because of usb damage anyway

I thought so, thanks for the heads-up anyways.

[Solved] Display is fixed
Update:
I disassembled the HD2 and reconnected everything (from coax to flexcable). Fortunately it worked! The display is how it should be.
I have another problem now. All of the buttons don't work now, exept for the dial button. Do these buttons break so fast? It's annoying as fuark, because I have to disassemble it another time in the future to fix the buttons.
I also couldn't re-attach the volume control tab when assembling the HD2.

[Q] M7 no display after replacing battery

Hi
I tried to replace my battery and after assemble it back i only get a black display when turning my m7 on.
I broke this little plastic thing from the display cable off (look in attachment)
Is this thing essential for a working display? (i thought i can fix it with a drop of glue)
Should the display work when the backcover is off the device? Because there are some connectors on the backcover....
cheers

00Nuclear00 said:
Hi
I tried to replace my battery and after assemble it back i only get a black display when turning my m7 on.
I broke this little plastic thing from the display cable off (look in attachment)
Is this thing essential for a working display? (i thought i can fix it with a drop of glue)
Should the display work when the backcover is off the device? Because there are some connectors on the backcover....
cheers
Click to expand...
Click to collapse
Shouldn't have done that, I think you accidentally broke something. I'd send it to a HTC service center. But that's gonna cost you probably.

nah, official repair isn't worth it. The phone is more than 2 years old...
and yes i think i broke something... thats why im asking

You're gonna have to be good with a solder and a couple of tiny wires if you want to revive your phone.

00Nuclear00 said:
Hi
I tried to replace my battery and after assemble it back i only get a black display when turning my m7 on.
I broke this little plastic thing from the display cable off (look in attachment)
Is this thing essential for a working display? (i thought i can fix it with a drop of glue)
Should the display work when the backcover is off the device? Because there are some connectors on the backcover....
cheers
Click to expand...
Click to collapse
You definitively need this clip to be intact so the flex cable sits firmly in place otherwise you'll have bad contact between the cable and the pins.
If you don't want to send to HTC for repair you'll need at least to send it to your local electronic repair shop so someone skilled with the proper soldering tool (not the standard iron you have at home) can replace the connector. BTW some of these clips must be lifted from the cable side and some other from the opposite side of the cable, so next time use tweezers and apply very light force on each side you'll find from what side it must be lifted.
LCD should work fine with the back cover removed, afaik. Connectors in the back cover are often for antennas but I wouldn't recommend to run the phone with antennas disconnected to avoid damaging the radio chips (reflected power).
If you are from the US, you can easily find this connector on ebay for about 10$. I'm sure it won't be that much expensive to repair if you bring the new connector and the phone already disassembled to your local repair shop.
Btw are you sure its only the LCD? When trying to boot the phone can you here the HTC theme or does it vibrate? Recognized by your computer when connected with usb?

thx for your response
I found an replacement part on ebay but first i have to look for someone who can solder this for me.
When i try to turn it on it only vibrates without a htc theme sound and there is no display reaction.
The other thing i mentioned is that the phone gets very hot in the middle (should be the cpu) where i dont know if it should get that hot.
I have to try the pc connetion again and let you know asap.

00Nuclear00 said:
thx for your response
I found an replacement part on ebay but first i have to look for someone who can solder this for me.
When i try to turn it on it only vibrates without a htc theme sound and there is no display reaction.
The other thing i mentioned is that the phone gets very hot in the middle (should be the cpu) where i dont know if it should get that hot.
I have to try the pc connetion again and let you know asap.
Click to expand...
Click to collapse
I'm not really worried about the absence of HTC sound when booting, if your phone is on silent / vibration mode, it will only vibrate when booting. If your computer does detect it once booted, then I guess the broken connector clip is the problem.
---------- Post added at 09:49 AM ---------- Previous post was at 09:27 AM ----------
Here is a video about the connector replacement, it doesn't look that hard to replace but wouldn't recommend to do it yourself if you never soldered electronics before. Soldering isn't that hard but you need some practices and knowledge to make good joints. I don't think your phone motherboard is a good candidate to practices yourself if you never did it before. You'll also need a really tiny tip for your iron, probably a type "L", 50/50 solder + some flux. Flux must be cleaned after use to avoid corrosion. The most difficult when soldering on motherboard, imo, is to find the right temperature. If your iron is to hot, you'll damage your connector. If its not hot enough, solder will take more time to liquefy and some heat will be absorbed by surrounding components which can cause irreversible damage.

Easy fix mate
You don't need to replace the connector, I've done this before, it is just the connector clip that has come off and it goes back on reasonably easily.
You will need a good magnifier.
You will need a good light source.
The phone held securely on its side with the socket pointing up.
Some masking tape on the loose part because it WILL go "ping" into the distance if you don't and you will not find it.
Look at the other connectors to see the proper orientation for the part, mark it with a permanent marker on top and at one end.
The insertion looks difficult, it isn't too bad, keep the part nice and straight and the motion is kind of like clicking it down on the ribbon.
Forget replacing the connector, that is 100 times harder.
If you do lose the loose part I have one or two laying around.
Good luck.

Replaced battery now phone won't power on

After getting reboots at ~20% battery life I went ahead and tried to swap mine out. Everything seemed to go fine... I was very careful and didn't break (at least I think) any ribbon cables. I put the phone back together and now it won't boot. Plugging in the usb cord does not give any indication it's charging either.... It's just dead.
I cannot see anything that seems wrong. I tried putting the original battery back in and it's still dead. Can anyone think of what I may need to check? Any suggestions? I'm travel a lot and dead in the water without a phone....

Make sure the shape of the battery matches the curve of the back. You shouldn't have to use a lot of effort to put things together. Use a small tool (like a dental pick) and a magnifying glass to examine the connections for each ribbon cable to the board. They should be locked in place in the connectors. Double check the mid-frame and power button connection.

I think the power and volume buttons are attached by a small ribbon cable. If this cable is not connected or is damaged, the phone will not power on.
The phone should give indication of charging though, plugged in or wirelessly?

I've tried the old battery and still nothing. The power on ribbon seems intact and in good shape but who knows. I may try buying a new button / ribbon assembly and see if that helps.
Is there any way to jump the power to try and get power on? I've got another phone to use but the real tragedy of the situation is the loss of my Magikarp.

Well, I've got a new power button cable assembly on order. No idea if it's the problem or not but for $15 shipped I figure it's worth a try.
I've checked the different connections and cannot find anything that seems out of sorts. Frustrating!

Update on my saga....
New power button assembly came in (both the button module and the part that connects to the mainboard). I've got that installed, all the screws in and still it won't power on. This is with both the old and new battery. Gentle pressing around the back when trying to boot doesn't make any difference either. I've inspected the different mainboard ribbon cables and have not found any that look damaged or loose.
Plugging the phone in to my computer and pressing the power on button never indicates any attached device so it's not like it's booting with a broken screen.
I miss my N6 =(
Can anyone think of any other options? There are a few files I'd like to get off of it but it's not the end of the world if I can't.

Lost Dog said:
Update on my saga....
New power button assembly came in (both the button module and the part that connects to the mainboard). I've got that installed, all the screws in and still it won't power on. This is with both the old and new battery. Gentle pressing around the back when trying to boot doesn't make any difference either. I've inspected the different mainboard ribbon cables and have not found any that look damaged or loose.
Plugging the phone in to my computer and pressing the power on button never indicates any attached device so it's not like it's booting with a broken screen.
I miss my N6 =(
Can anyone think of any other options? There are a few files I'd like to get off of it but it's not the end of the world if I can't.
Click to expand...
Click to collapse
Did you hook up the power button flex ribbon correctly?
I wish my S8 plus was rooted?
---------- Post added at 09:17 PM ---------- Previous post was at 09:13 PM ----------
BigM69 said:
Did you hook up the power button flex ribbon correctly?
Click to expand...
Click to collapse

BigM69 said:
Did you hook up the power button flex ribbon correctly?
Click to expand...
Click to collapse
Yeah, it's in correctly. I made sure of that (several times).
Either there is a ribbon cable somewhere that is loose (but I've checked them all as far as I can tell) or somehow the motherboard got fried when I took it apart.
Anyone else ever bring theirs back from the dead?

Lost Dog said:
Yeah, it's in correctly. I made sure of that (several times).
Either there is a ribbon cable somewhere that is loose (but I've checked them all as far as I can tell) or somehow the motherboard got fried when I took it apart.
Anyone else ever bring theirs back from the dead?
Click to expand...
Click to collapse
Hmmmm sounds like its time for a new logic board. Just a word of advice. You will have almost as much in a mint conditiin N6 as you will in a new/refurbished logic board! I have a mint condition nexus 6 im getting ready to list on swappa. If youre interested i can send you some picture's of it.
I wish my S8 plus was rooted?

BigM69 said:
Hmmmm sounds like its time for a new logic board. Just a word of advice. You will have almost as much in a mint conditiin N6 as you will in a new/refurbished logic board! I have a mint condition nexus 6 im getting ready to list on swappa. If youre interested i can send you some picture's of it.
I wish my S8 plus was rooted
Click to expand...
Click to collapse
Thanks, but I have a backup phone I'm using right now that will get me by until the Pixel 2 is released. I really do miss my N6 but mostly I'd like to get some files off of it. If I could just get one last boot I'd be happy.
It's also kind of a challenge at this point... see if I can make it work!

Lost Dog said:
Thanks, but I have a backup phone I'm using right now that will get me by until the Pixel 2 is released. I really do miss my N6 but mostly I'd like to get some files off of it. If I could just get one last boot I'd be happy.
It's also kind of a challenge at this point... see if I can make it work!
Click to expand...
Click to collapse
If you are tech savy then i have faith in you brother! Dont give up buddy!
I wish my S8 plus was rooted?