Develop Bugs

lcd screen flashing,help!!

guys,i have a serius problem with my htc tytn.my lcd is flashing,horizontal stripes are going up and down all the time.the screen is for the moment full of grey rounds,but after some sec it is ok for some minutes.it's look's like the software mistake,so i flash my rom and it is the same thing.is lcd out or what? i realy need some usefull advice!
thanks

i forgot to tell,that those flashing stripes are mostly when i chagre the pda.they are on when pda is not charging,but some time to time.when it is on cable,it is aufwul!

c'mon guys,my lcd is blinking like crazy.i need a solution.

need more info...really
It could be a range of things. Does it change when you move it, press the sides,tap the screen? Does it do it by itself.....when it is just sitting there...no external movement. More info needed.

yxgwfty said:
It could be a range of things. Does it change when you move it, press the sides,tap the screen? Does it do it by itself.....when it is just sitting there...no external movement. More info needed.
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Click to collapse
it has minor efects,if i tap on the screen when he is doing this.if i slide him to landscape,screen is turn,but stripes are going up and down like in portrait .it is do it by itself,yes.i put him on table,and suddenly bum,start flashing.
i thought there is some power bricks,you know,like the lcd is touchy for the minor change in power.but it is weird,realy.

i take some pictures with one old vga camera phone.hope anyone can help me with the problem.
http://img145.imageshack.us/img145/7804/slika008qi7.jpg
http://img71.imageshack.us/img71/7509/slika006wl9.jpg
http://img100.imageshack.us/img100/6112/slika010ap3.jpg
http://img74.imageshack.us/img74/1262/slika010qb9.jpg

it sounds as if the connector inside the phone is coming loose. If you are able, try and pressure the connector so the connection is good.
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle05.jpg
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle06.jpg
Thats the connection i am referring to. If you need assistance in dismantling the hermes, try the mod, Mike Channons guide
If it is not this, then i am not sure...
Do this as a last resort as it will void any warranty you may have with your phone... it also sounds as though the screen is on its way out.

miffymiffy said:
it sounds as if the connector inside the phone is coming loose. If you are able, try and pressure the connector so the connection is good.
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle05.jpg
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle06.jpg
Thats the connection i am referring to. If you need assistance in dismantling the hermes, try the mod, Mike Channons guide
If it is not this, then i am not sure...
Do this as a last resort as it will void any warranty you may have with your phone... it also sounds as though the screen is on its way out.
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Click to collapse
ya,i thought it is screen fault,but i doubt,because phone is relising scratchy voices trouht speaker.i will try that conector.i don't have warranty any more,so no big deal if i void this.

duh,i am not realy sure witch connector might be lose? i must say,my pda drop on the floor about 2weeks ago.maybe from there are these problems?

SO FRUSTRATED. New LCD installed, black screen issue.

Hey guys how are you!
So my beloved evo's lcd broke and i just replaced it today. The strangest thing is happening.. the screen turns on fine, but once I turn it off, it wont turn back on. The three buttons at the bottom light up and the screen, i can tell, turns on. But I cant see the UI. It is definitely not a software issue and I have tried reseating the ribbon cable multiple times. What the hell? Is my evo too old? only way i can make it work is with a reboot which is super annoying.

I have one with a shattered screen I will be replacing soon. If my memory serves me correctly there are several different types of ribbon sizes. Hopefully that is not your issue. I would suggest using a bright light and looking into the female receptacle (no dirty jokes please) and make sure that nothing is bent or twisted. Also check cable that none of the connections are not chipped.
Not sure if this will help but it is worth a shot. Other than that I am not sure what could be wrong.
Peace,
Love, and
Happiness
Edit: well fine honda but just one and you have to promise that it will be clean

jlmancuso said:
I have one with a shattered screen I will be replacing soon. If my memory serves me correctly there are several different types of ribbon sizes. Hopefully that is not your issue. I would suggest using a bright light and looking into the female receptacle (no diery jokes please) and make sure that nothing is bent or twisted. Also check cable that none of the connections are not chipped.
Not sure if this will help but it is worth a shot. Other than that I am not sure what could be wrong.
Peace,
Love, and
Happiness
Click to expand...
Click to collapse
Oh come on just one joke... that was too funny...
But on topic yeah check all connections...
Sent from my PC36100 using xda app-developers app

hondafreak513 said:
Oh come on just one joke... that was too funny...
But on topic yeah check all connections...
Sent from my PC36100 using xda app-developers app
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Click to collapse
The screen turns on fine. Its something I've never seen or heard about.

Well what caused the problem in the first place? Did ir just stop working or was it an innocent victim lacking the proper protective coverings?
Either way there could be more hardware problems than your screen. Give this a try and tell me what happens. Plug your phone into the charger, if nothing happens with the screen try connecting to your pc, and if still nothing try a rom that has the volume keys to wake aokp/cm are a couple that I know have that option.
If that doesn't work I will see what else I can think of.

jlmancuso said:
I would suggest using a bright light and looking into the female receptacle (no dirty jokes please)
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This is XDA, not gynecology.com
I like to break stuff!

-EViL-KoNCEPTz- said:
This is XDA, not gynecology.com
I like to break stuff!
Click to expand...
Click to collapse
Too bad it won't let me give you two thanks for that one.

I would suggest using a bright light and looking into the female receptacle...[/QUOTE said:
of course if you can't find the receptacle, you'll want to take hold of the dongle and have it cough a couple of times...let us know the outcome, please!
But seriously, so is this what happens?
You turn on the device. Powers up ok. You can see the screen. Then what? How long till it disappears? Are you doing anything when this happens? Can you unlock the phone and see the desktop? How do you know the screen turns on fine? What exactly is giving you this impression?
Sounds to me like another broken lcd. Do you have another phone you can swap out the mainboard and help isolate the problem: mainboard or lcd/digitizer/connectors.
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Click to collapse

mabulok said:
of course if you can't find the receptacle, you'll want to take hold of the dongle and have it cough a couple of times...let us know the outcome, please!
But seriously, so is this what happens?
You turn on the device. Powers up ok. You can see the screen. Then what? How long till it disappears? Are you doing anything when this happens? Can you unlock the phone and see the desktop? How do you know the screen turns on fine? What exactly is giving you this impression?
Sounds to me like another broken lcd. Do you have another phone you can swap out the mainboard and help isolate the problem: mainboard or lcd/digitizer/connectors.
Click to expand...
Click to collapse
It powers up fine and then as soon as the screen turns off (either manually by me or by timeout), it will not turn back on. The screen powers up, the lights at the bottom turns on but its a very dark grey screen. And as you said, isolating the problem would be easy if I had another mother board. I have another one with a wide flex cable IDK if should request a replacement or if i should get a more expensive, OEM LCD.

Ok questions for you.
Stock/rooted
S-on / off
Rom/kernel combo
Min/max governor
Oc/Uv
Everything thing else works
Power button (I say yes)
Volume +/-
All 4 screen buttons
All points of screen responsive
If your on a rom that supports volume wake try it
Auto brightness off/on

jlmancuso said:
Ok questions for you.
Stock/rooted
S-on / off
Rom/kernel combo
Min/max governor
Oc/Uv
Everything thing else works
Power button (I say yes)
Volume +/-
All 4 screen buttons
All points of screen responsive
If your on a rom that supports volume wake try it
Auto brightness off/on
Click to expand...
Click to collapse
I did my research, man. Literally tried everything. Its not software, no setting can fix it.

Think it could just be an issue with waking? The lights coming on but just a dark gray screen has happened to me with several ROMs. Bumping up the minimum CPU speed a notch or 2 usually solves it.

I asked the seller and he said it is not oem. Do you guys think it makes a difference and if I should suck it up and buy OEM?
Six6tring said:
Think it could just be an issue with waking? The lights coming on but just a dark gray screen has happened to me with several ROMs. Bumping up the minimum CPU speed a notch or 2 usually solves it.
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Click to collapse
That's what I though at first. Hours of tweaking and research and I figured it cant be a software issue.

[Q]What went wrong?

I have a huge problem, basically I was sick and tired of my black housing for the phone, so I ordered the white one from ebay. I was so happy it came that I forgot to shut down the phone, well during half way of the work, while I was trying to pry it open I remembered and turned it on and it worked I opened it a bit more open and it suddenly went black and since then everything is working except the LCD.
I have no idea whats the problem is the LCD broke or what?
Also when it shut down and me trying to reconnect the LCD flat cable to see if thats the problem I was nervous and did that which you see in the picture. Now my issue is what if I buy a new screen connect it and it doesn't work because the FPC connector?

Silthrax said:
I have a huge problem, basically I was sick and tired of my black housing for the phone, so I ordered the white one from ebay. I was so happy it came that I forgot to shut down the phone, well during half way of the work, while I was trying to pry it open I remembered and turned it on and it worked I opened it a bit more open and it suddenly went black and since then everything is working except the LCD.
I have no idea whats the problem is the LCD broke or what?
Also when it shut down and me trying to reconnect the LCD flat cable to see if thats the problem I was nervous and did that which you see in the picture. Now my issue is what if I buy a new screen connect it and it doesn't work because the FPC connector?
Click to expand...
Click to collapse
The connection pins themselves do not look damaged, on the plastic shroud. The socket should work fine.
It's a little hard to make out fine detail in the pic...take a magnifying glass to it and check for cracks or splits in the pins.

Tigerlight said:
The connection pins themselves do not look damaged, on the plastic shroud. The socket should work fine.
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Click to collapse
Hmm it seems like it goes one small one then longer one, its hard to see from he picture but I think two of the longer ones are missing. And what should be the problem with the LCD because that happened before I damaged the socket.
Between thank you for the fast reply.

Silthrax said:
Hmm it seems like it goes one small one then longer one, its hard to see from he picture but I think two of the longer ones are missing. And what should be the problem with the LCD because that happened before I damaged the socket.
Between thank you for the fast reply.
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Click to collapse
Well I don't see any missing pins, but you'll have a better view.
As for you LCD...no idea. Generally it's a good idea to turn everything off before you open electrical equipment. You could have caused a short in the process of opening it live.

Tigerlight said:
Well I don't see any missing pins, but you'll have a better view.
As for you LCD...no idea. Generally it's a good idea to turn everything off before you open electrical equipment. You could have caused a short in the process of opening it live.
Click to expand...
Click to collapse
Would that be on the motherboard or the LCD, basically should I bother repairing it or just sell it for spare parts thats my issue right now.

Silthrax said:
Would that be on the motherboard or the LCD, basically should I bother repairing it or just sell it for spare parts thats my issue right now.
Click to expand...
Click to collapse
If you try to power it on does the vibrate activate...basically does it do everything you'd expect EXCEPT the screen doesn't work or does it do nothing at all?

Tigerlight said:
If you try to power it on does the vibrate activate...basically does it do everything you'd expect EXCEPT the screen doesn't work or does it do nothing at all?
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Click to collapse
Like I said earlier everything works, I can still receive SMS, phone calls (I can answer them since the digitizer works), e-mails, Facebook msgs, vibrations, sound, microphone... Everything works except the LCD.

Silthrax said:
Like I said earlier everything works, I can still receive SMS, phone calls (I can answer them since the digitizer works), e-mails, Facebook msgs, vibrations, sound, microphone... Everything works except the LCD.
Click to expand...
Click to collapse
You might try replacing the LCD and hope you haven't damaged the connector. If you have, a self-repair is unlikely given its size and that of the pins.
Or you dump it and buy a new phone.
Either way it's gonna cost you money. The first is cheaper but may not work.
I think that's your only options.

Yeah I knew from the start it was gonna cost me money, but I wanted the cheapest way out
Thanks a lot for the help I think I am gonna try to fix it. Get some experience while doing it too

Silthrax said:
Yeah I knew from the start it was gonna cost me money, but I wanted the cheapest way out
Thanks a lot for the help I think I am gonna try to fix it. Get some experience while doing it too
Click to expand...
Click to collapse
Hey did you ever figure out the connector issue? Same problem

N7 screen went black

Yes, like it turned itself off but it did not go off as I was still getting audible email notifications. Tried everything speaking with Google support and then even Asus support who told me to go to their website and fill in an RMA form. This unit is 13 months old-out of warranty. There is nothing on the form relevant to the nexus to fill in so you cannot continue with it. So I am stuck right now and do not know what to do if anything. Any help would be appreciated.

claypoole said:
Yes, like it turned itself off but it did not go off as I was still getting audible email notifications. Tried everything speaking with Google support and then even Asus support who told me to go to their website and fill in an RMA form. This unit is 13 months old-out of warranty. There is nothing on the form relevant to the nexus to fill in so you cannot continue with it. So I am stuck right now and do not know what to do if anything. Any help would be appreciated.
Click to expand...
Click to collapse
Normally, 3 things can go wrong:
1. The cable is not connected properly. This could be caused by any impact. You take off the back cover and reseat it. It's the amber cable that runs the length of the battery. Be sure to check both ends. The one on the motherboard's end is in plain sight. The other end is hidden beneath the daughter board at the bottom of the tab, so you need to remove it to inspect the connection.
2. The backlight which illuminates the display went out. You can check this by turning the tab on and taking the tab to a dark room and shine a flashlight on the screen. If you can see the icons or the boot page, the back light is bad. The bad news is that you'd have to remove the lcd/touchscreen unit to replace the backlight. 10 times out of 10, when you do this on an original tab, you will break the touchscreen. Since it's glued to the lcd with LOCA (liquid optically clear adhesive), you will have to separate them, fix the backlight, buy a new touchscreen, then reassemble the whole thing. Most people would find it simpler to just buy a new lcd/touchscreen combo. If you're game though, I can give you an lcd back with a working backlight strip.
3. The video circuit on the motherboard went belly up. To test this, you need a micro usb to HDMI adapter like the one here , and a newer lcd TV. If nothing shows on your TV, the GPU is probably dead, in which case the only practical solution is to replace the motherboard since it's impossible to replace the GPU at home.
Good luck.

graphdarnell said:
Normally, 3 things can go wrong:
1. The cable is not connected properly. This could be caused by any impact. You take off the back cover and reseat it. It's the amber cable that runs the length of the battery. Be sure to check both ends. The one on the motherboard's end is in plain sight. The other end is hidden beneath the daughter board at the bottom of the tab, so you need to remove it to inspect the connection.
2. The backlight which illuminates the display went out. You can check this by turning the tab on and taking the tab to a dark room and shine a flashlight on the screen. If you can see the icons or the boot page, the back light is bad. The bad news is that you'd have to remove the lcd/touchscreen unit to replace the backlight. 10 times out of 10, when you do this on an original tab, you will break the touchscreen. Since it's glued to the lcd with LOCA (liquid optically clear adhesive), you will have to separate them, fix the backlight, buy a new touchscreen, then reassemble the whole thing. Most people would find it simpler to just buy a new lcd/touchscreen combo. If you're game though, I can give you an lcd back with a working backlight strip.
3. The video circuit on the motherboard went belly up. To test this, you need a micro usb to HDMI adapter like the one here , and a newer lcd TV. If nothing shows on your TV, the GPU is probably dead, in which case the only practical solution is to replace the motherboard since it's impossible to replace the GPU at home.
Good luck.
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Click to collapse
Did anyone else read this response and want to hit the edit button, and then type in huge letters "Time to buy a new Nexus!"

Thank you for your detailed reply. I checked the cable from the MB at both ends. Seems OK on the connections. I am unable to turn on the tab to check the backlight. That's about as far as I can go with it at this point. I am thinking that this tab is toast and to make matters worse, the abominably bad Asus customer service. I am considering replacing this with a Samsung and be done with it.

claypoole said:
Thank you for your detailed reply. I checked the cable from the MB at both ends. Seems OK on the connections. I am unable to turn on the tab to check the backlight. That's about as far as I can go with it at this point. I am thinking that this tab is toast and to make matters worse, the abominably bad Asus customer service. I am considering replacing this with a Samsung and be done with it.
Click to expand...
Click to collapse
Hey, don't lose hope! Samsung is not any better specs or quality-wise (especially the display). If you're gonna butcher the thing anyway, might as well find out. I was gonna suggest to lend you a used lcd for you to test, but I realize people for some reason are extremely wary of gratuitous offers so I won't. But if you value it, try to get a screen with a good lcd but broken digitizer on Ebay. They wouldn't cost more than 15 bucks. Once you can determine it's not the motherboard, we can go from there. I can guide you on the replacement part if you want. I'm just a hobbyist, but I have messed around with this thing enough to tell.

Graph, you are kind to offer. I also have noticed that the glass has a few cracks in it as well. At this point, I can't turn it on. It seems like when I punch the on button in there is extremely little movement if at all. So I don't know if it is still on which I don't this it is or it shut itself off. When it was black screen and on, I was getting my email notifications audibly but since yesterday-none. I am not looking to spend big bucks on these things as essentially all I do mostly is use for reading. I do want to stick with android if I replace this. I know samsung does not have as good resolution but seems to get good reviews from users.

Black screen with a lightning volt

Hi, i have a 610G if i recall corectly, was going to charge it, but it fell off my hands, maybe 2 feet high, nothing happened to the phone, screen didint break, but it didnt turn on anymore, i just have this black screen with a little lighning bolt inside a circle and it turns on and off, could go torecovery one time and i did a hard reset, didnt work, could go to download mode ones and flashed identicall firmware than the one installed, didnt work, keeps going on and off and its not charging, could it be that something hardware related could have broken? Any ideas?

Displaced connector, or damaged mobo or jack pcb.

blackhawk said:
Displaced connector, or damaged mobo or jack pcb.
Click to expand...
Click to collapse
So, no other choice but to open it up huh

skoopster said:
So, no other choice but to open it up huh
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Click to collapse
Corrupted firmware is probably the last probable cause simply because you know it was dropped.
Unless the mobo or a chipset was damage by the G loading it normally won't effect the flash memory retention.

i guess your right, ill open it tomorrow, thanks