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Att Fuze black screen need help please! Not a bad flash issue.

Hi all,
I am at my wits end on this problem if anyone can offer any adivice it would be greatly appreciated. So let me give a recap of what has occured thus far. The water damage tag for some reason turn pink thus i am unable to get warranty exchange. I am pretty certain that the phone has never been expose to any water of anything of that sort, but i do live in houston, tx so might be humidity or what not that cause the tag to turn. Anyways.
1. This all started after i flashed RRE 5.2 RC3. Initially after a successful flash everything seem normal and fine. Then next morning i woke up to a frozen screen with many verticial lines running up and down the screen was almost unreadable. Initially i thought it was a bad flash or just random lock up. I did a hard reset and tried to enter the bootloader. Black screen, it does seem like the backlight is coming up but nothing on the screen. I can hear the phone power on and boot successfully into windows. Activesync connects i can browse the contents of the phone.
2. After flashing to stock att rom and stock htc roms same symptoms. So at this point i am thinking crap bad LCD screen. so I ordered both the digitizer and lcd screen for good measure. I replaced them hoping that a bad LCD was all. replaced both screens and i powered on the phone. same problem. black screen. The phone still powers on and boots into windows. Activesync still connects and i cna still reflash the phone.
3. I work extensively and do both desktop pc and notebook repair. I am not new to dealing with small electronic repairs. but at this juncture i am unable to identify the cause of hte malfunction. i am hoping maybe some of the gurus here might be able to shine some light on the subject.
Thanks in advance for any help.

I would have followed the same approach; your description makes it sound like it might be some kind of backlighting issue at first read. I'm inclined to think it might be a cold connection (bad connector) on the main board.
Silly question, what happens if you power up the phone with the keyboard exposed?
*EDIT* Not sure if you have been here yet: http://www.mikechannon.net/
Cheers,

i just tried to power up the phone with keyboard exposed. Powers up the same as with the keyboard hidden. Still boots up fine but black screen. I already have the service manuel dowloaded. i have checked around with several repair places both local and on the web. Seems like no one has any parts for the att fuze/touch pro gsm except for the lcd and digitizer and a speaker.
its quite possible that it is a main board but as the same time it might be something as simple as a ribbon cable. i have contacted htc about doing a possible repair and they want wayyyy too much for just a main board repair almost $400 USD.
Anyone have a bricked/ non working touch pro they would like to sell ? =P

fkoong said:
its quite possible that it is a main board but as the same time it might be something as simple as a ribbon cable.
Click to expand...
Click to collapse
Could be a bad ribbon cable ... and firmly pressing around the front/back of the unit shows no change?

pressing the phone front and back show no changes to display. in a very dark room I can see that there is light emitting from the display but its just the screen is not displaying anything visable. this occured both before and after i changed out the screens. I'll do another visual inspection of all the boards to see if there is any bad resistors burnt out circuits etc.. but i didn't notice anything mentionable during my first 2 inspections. Maybe 3rd time is the charm.
Thanks for all the feedback thus far Hilaireg it is quite appreciated. All this venting has at least made me feel 1000% better than after i replaced my lcd and still same problem at least i don't feel like a complete idiot!

Sorry I couldn't be of much help ... you've done all the steps a seasoned hardware person would do.
Do post back to let other folks know if you get it back up and running.
Cheers,

you have a pm fkoong.

I have possibly the same problem. Phone got wet, dried it out for 2 days (in a container of rice). Phone worked but had "water marks" on screen that disappeared after two days and everything was fine for about 2 weeks. Then one day (happened to be humid misting rain eve in Charleston) the screen is blank (hint of backlight only). A soft reset and it seems OK for about 1hr, then blank again. The hard resest screen displayed OK (readbale text etc), but didnt work. But as I write this, I retry to document it results correctly and the NATF ROM is reloading and the screen works! We will see how long!!
Well.. not that long, the end of the ROM load and it went blank again, seems like a video driver problem. The Press VoluP to boot does show some red artifact.
Trying hard reset again (No SIM no uSD)
The NATF v4.4 loads and gives me the Tap screen, Align Screen, stylus, loads customization, opera, tf3d, then loads a bunch of files under ...... and then the screen goes blank again, seem like what happened last time, so Ill try loading a fresh ROM copy... later

Replacement touch screen unresponsive

I'm fixing an infuse for a friend who needed the screen replaced simple enough job so I thought as I repair phones and electronics as kind of a hobby. However the replacement screen isn't responding to any kind of touch at all. It displays the puzzle piece lock screen and everything else even shows there's been some missed calls ect. yet will not respond to any kind of touch. I think it's a calibration issue but I can't get passed the lock screen so there's no way to change the setting. Honestly I'm most worried about all the media on the phone most (pics, videos, contacts, ect )
If there is a way I can retrieve that off the internal storage I'll feel better about taking drastic measures. Other things I've noticed is an unusualy long boot up time hanging at the white Samsung letters but this is the first time I've dealt with an infuse so I'm not to sure on that.
Any advice is appreciated.
Thanks,
s1im

There are different versions of screens or maybe it was revisions. At least for the LCD +digitizer assembly. Rev.6.1 and 6.2 and 6.3 if I remember correctly.
Edit....here is a link for reference, also two of the screens were interchangeable but not all three. Sorry I don't remember which ones.
http://item.mobileweb.ebay.com/viewitem?itemId=180914982430&siteId=0&isClassified=false
Edit....my statement regarding interchangeability may not be true. The screen I bought could be used as a replacement for two of the rev numbers. That could mean that it is backward compatible but the other one isn't forward compatible.

The link said this item has been removed, but to be clear your saying not all revisions of screens can be used as replacements that you must find out which rev your original screen is?

s1imch4anc3 said:
The link said this item has been removed, but to be clear your saying not all revisions of screens can be used as replacements that you must find out which rev your original screen is?
Click to expand...
Click to collapse
Correct mine had a sticker on it.

Bummer I have no idea what kind of screen she had I threw it away as a jumbled mess is there any other way to find out what screen it was... either way thanks for the replies

Wish I could answer that, but here is another screenshot. It shows one for 6.0/6.1 and another for 6.2 so my original numbers were off. Did the new one say what it is?

Do you know of any way to retrieve the pics and other media off the phone without being able to unlock the screen

s1imch4anc3 said:
Do you know of any way to retrieve the pics and other media off the phone without being able to unlock the screen
Click to expand...
Click to collapse
Just guessing but maybe adb. You could try to edit the title of your thread or start a new one about this question.
Edit..I have an idea but first a few questions , is this phone stock, and would you be comfortable flashing a kernel if it is? This will give you CWM recovery which has mount USB storage as an option in it. All this can be done with the physical buttons, power and volumes.

I found something that may work without having to make software modifications so I'm going to try that first and if not I'll get back to you...
To answer your questions tho the phone is stock and I've rooted /flashed a couple phones with no problems before so I'm OK with giving it a try
Again I'd like to thank you for your continuous help

You should be able to pull everything you need with adb...but the problem is, is adv enabled? And can you pull a whole directory? I doubt you know individual file names for each media file, not to mention that would be a long tedious process as there are likely well over a 100 if not in the 1000s of music/pics/vids
Well..looks like you can pull a whole.directory (sdcard)
this thread may help http://forum.xda-developers.com/showthread.php?t=744454
Btw...you don't have to be rooted to adv pull
Sent from my HTC PH39100 using Tapatalk 2

UPDATE: I took the phone back apart finally after some grueling hours of adb research that lead me almost in circles and found that the replacement LCD is a rev 6.2 and that the revs 6.0/6.1 are the universal more common screens in the u.s. infuse. I decided to return the screen and get the other rev in hope it will be that easy...
I'd like to thank the 2 above members that gave me help especially adfergurson for sticking with me and my ?s I will post back when the next screen comes in to confirm it worked for anyone else needing this as future reference

s1imch4anc3 said:
UPDATE: I took the phone back apart finally after some grueling hours of adb research that lead me almost in circles and found that the replacement LCD is a rev 6.2 and that the revs 6.0/6.1 are the universal more common screens in the u.s. infuse. I decided to return the screen and get the other rev in hope it will be that easy...
I'd like to thank the 2 above members that gave me help especially adfergurson for sticking with me and my ?s I will post back when the next screen comes in to confirm it worked for anyone else needing this as future reference
Click to expand...
Click to collapse
ADB was the first thing I thought of, but flashing a kernel with custom recovery in Odin should allow you to get into USB storage. I am not familiar with the stock recovery but you could see what options are there. I believe it would be from device powered off hold volume up+volume down+ power buttons then release power at Samsung screen.

Were you able to resolve the screen issue with the different version? I am having the same problem.

Nexus 5 Screen issues - Erratic

Hello!
I have a Nexus 5 with no warranty (according to LG, I need a receipt which I don't have) and the display is acting up. I noticed if I slightly bend the phone, the display flickers, sometimes fixes the problem, or it turns off. Over the last 6 months, the touch screen has been erratic and sometimes I have to hard reboot the phone to get it working again. Also on startup, sometimes I get the rainbow coloured "static noise" on the screen and then I push on the screen a bit and it is working again. Does anyone have any ideas what might be the cause and how to fix it? I feel like it's a ribbon cable problem but I have no clue. I went into Bootloader and factory reset it multiple times, pushed the factory image, pushed TWRP and Cataclysm.
Thanks for any and all help!
Jon

atom bomb said:
Hello!
I have a Nexus 5 with no warranty (according to LG, I need a receipt which I don't have) and the display is acting up. I noticed if I slightly bend the phone, the display flickers, sometimes fixes the problem, or it turns off. Over the last 6 months, the touch screen has been erratic and sometimes I have to hard reboot the phone to get it working again. Also on startup, sometimes I get the rainbow coloured "static noise" on the screen and then I push on the screen a bit and it is working again. Does anyone have any ideas what might be the cause and how to fix it? I feel like it's a ribbon cable problem but I have no clue. I went into Bootloader and factory reset it multiple times, pushed the factory image, pushed TWRP and Cataclysm.
Thanks for any and all help!
Jon
Click to expand...
Click to collapse
Replace the flex cable. It's fairly cheap.
If that doesn't solve your problem, then it's a screen or motherboard issue (i'd recommend paying LG for a repair rather than guessing between the two and possibly wasting money).

Elluel said:
Replace the flex cable. It's fairly cheap.
If that doesn't solve your problem, then it's a screen or motherboard issue (i'd recommend paying LG for a repair rather than guessing between the two and possibly wasting money).
Click to expand...
Click to collapse
Thanks for the info. I have been looking for a while but I'm not sure which flex cable to replace? From the iFixIt teardown, it doesn't look like getting to the display cable is easy/possible. Do you have any links for what I should purchase? I'm comfortable with taking it apart and doing the work, just want to make sure I buy the right piece .
Thanks!

http://www.amazon.com/ePartSolution-LG-Charging-Connector-Microphone-Repair/dp/B00K7F2NW6

I've the same problem. atom bomb, did that work for you ? how did you end up fixing your phone ?

Nexus 5 water damage - screen's all black - motherboard related?

Hello guys,**
Well few days ago I accidentally dropped my Nexus 5 in a glass of water for just 1 sec. So I immediately switched it off and wait a bit to let dry then restarted it, and all seemed to work fine. But just some days later and up to now the phone boots up all fine as usual to the lock screen, and from there I can pull down the notification bar (and navigate through it, activate/deactivate wifi, etc..) but when I unlock it to get to the home screen it becomes all back and nothing appears on the screen even though the phone is still on.*
It's really confusing and weird. When I call the phone it rings (so no signal or sound problem) but I can't still access the screen to take the call as it's all back and unresponsive.
Following some suggestions I disassembled the phone and cleaned it dry but same results again! So now I think the problem is somehow related to the motherboard, coz as you might notice on some of the pictures attached, it seems that some plastic parts have melt down to cover other smaller parts. Anyway guys,*I'm just wondering if some of you guys had experienced something like that and if you were luckier*to find a solution or any directives that could help. Or you even think that's a motherboard problem like, do you know any ways to fix that o buy a new one somewhere??
PLEASE!!

Sorry apparently, I can't publish links until I get like 10 posts or plus..
But anyway guys, I'd really appreciate your help.

Why did you power it on and short circuit it on purpose for??

Bump

@SekouCheikh

Maybe it's a coincidence that you dropped it in water and this happened a few days later. Once in a blue moon mine does something similar to this (although not usually as start up only after lots of use), but I think it's related to an app or xposed. I only notice it after installing a bunch of crap again. Maybe try a factory reset (do it though the computer) just to see if it is somehow not hardware related? That's what I would try first.

Help please

Ttt

Wait... Are you seriously posting from 2 different accounts??
<...>
First, simply try to factory reset or flash a new rom. There is not enough evidence to be sure it's a hardware problem, it could just as well be a coincidence that it started happening just now.

-SmOgER said:
Wait... Are you seriously posting from 2 different accounts??
<...>
First, simply try to factory reset or flash a new rom. There is not enough evidence to be sure it's a hardware problem, it could just as well be a coincidence that it started happening just now.
Click to expand...
Click to collapse
No, I just like to help

Help Op solve the problem please

Ttt

Nexus 5 Audio and Black Screen Issues

Hi everyone, I'm have an issue with my Nexus 5 and hoping someone here can tell me whats going on.
It started off with the sound always cutting out, and I have to press the back part near the "S" logo for it to return.
Eventually the screen would go black but I can clearly see a back light is on. Now not only does the sound cut out, and screen goes blank.
It has become very sluggish to reboot it. I hold the power button until the phone reboots "Google" logo appears and the android animation. Now during this time the phone will be so slow to the point of being crippled out and i have to reboot it again and again until it is normal speed returns. Often it will black out during this time.
I'm just trying to understand what is failing. I tried safe-mode and it still has the issue. I cleared cache, reset the phone everything, nothing appears to fix the issue at all.
edit: I forgot to add, when I'm on YT or listening to music or browsing the web, even though the screen is blank with just the back light on, the sound is still going (when it works). I get text/call notifications still during this time.
My Phone Details.
Nexus 5
Android version, 6.0.1 (MOB30Y)
no ROOT

No replies at all, I guess I may have to garbage the phone. Idk what else to do with this device to fix it.

Please don't throw it away.
You said that pushing at a specific spot fixes the problem (or improves the audio situation). This means that it's a hardware problem. I have disassembled it many times and I know the layout. Behind the 'S' of NEXUS is actually the motherboard cover, and under it are 2 connectors; one for the battery and one for an extra 'board' that is located right underneath the LG logo on your back cover. On that 'board' is your screen connector, and also the speaker rests on there, as well as the primary microphone, 3G and 4G antennas and of course the USB port. The connector for this extra board is actually located a bit to the left on the 'S' (when you look at your phone from the back, it's more below the camera).
Now I have to note this: While using my phone, I have experienced some UI hiccups. At random times (very rarely) everything would just freeze for a few minutes, though music would still play. The power button was useless apart from the hard reset, it was so badly stuck. This was a software problem, although it appeared MOST at one point when my motherboard was faulty. Since I got a new device, it happened again but only once. I'm not sure that this is what you are experiencing. If this is the case, then it's a software fault. Never happened on CM so you can give it a try.
But since it's probably a hardware problem, you can always check it out yourself. Obviously if you have warranty you are covered. Otherwise, you can try disassembling it, at least take the back cover and the motherboard cover off, it's ridiculously easy, there is a disassembly guide from ifixit (I think) online, just be careful not to break the clips of the back cover (xp talking). If you open it, keep away metal things and the first thing you do after you remove the motherboard cover is remove the battery (xp talking again). Obviously turn off the phone properly before you attempt anything. Everything is sensitive in there so be careful. What you should look for is the long connector that connects the extra board that is located at the bottom of the phone with the motherboard. That's what you are pushing so if it's not sitting correctly, then that's your problem.
Plus, everything in there, apart from the motherboard, is cheap and can be found on eBay so don't worry if something is broken (unless it's the motherboard, then no hope ).
I hope I helped.

Firstly thanks for the reply. I did manage to remove the back and get to the connector you were saying. I reseated this and noticed the phone was working much better. I noticed the following still.
When it starts acting slow/crippled pressing this connector fixes the issue. However once the screen goes black with just a backlight this method is rendered useless. Also sometimes when I plug in the wire to charge it will cripple and or go black. So I wondering if the board is shot as you suggested to order a new one, or is it the connector strip ?
Again thank you for the response.

It seems like this board is causing everything. First, check the connector on the motherboard. Make sure that nothing is wrong on the motherboard. Then you can remove the bottom black plastic thing that has the speaker on it and 2 antennas. Then, inspect this board. Check the connector of the display. There is only one big connector on it. This board is glued on the frame of the phone. You can remove it but do it carefully. Do it slowly so that you don't break it. First, remove the antennas extension cables from either this board or the motherboard, and then pull it out.
This board is definately responsible for the black screens and audio issues (unless your display is faulty, check its connector), but I'm not sure about the phone being sluggish. Since this board offers input to the motherboard, I suppose that it could be its fault.
Remove it and inspect everything. Then, if you want, you can order a new one. If you come across D820 and D821 models, I don't think that this part of the phone has anything to do with it so don't worry.

I will take a further look into this for sure, and report back. If you can provide which motherboard is required for my device, so I can also read into this and so that I may order it right-away. Is there any model number or something that indicates which board to order once it is open?
Thanks again!

omega59 said:
I will take a further look into this for sure, and report back. If you can provide which motherboard is required for my device, so I can also read into this and so that I may order it right-away. Is there any model number or something that indicates which board to order once it is open?
Thanks again!
Click to expand...
Click to collapse
You don't need to change the motherboard, not to mention it's very expensive and hard to find. What you need to replace is probably the flex cable that goes below the battery. For example this.
This is not model specific, you can use it with all available Nexus 5 models (D820/D821, 16/32GB) so it doesn't matter what device you have.
FYI, if you think that you should replace your motherboard (you probably shouldn't), you need to take into account the storage (16/32GB) and the network differences (D820 or D821, the only difference is about the 4G networking, the american version has some bands enabled and some others disabled, and vice versa)

Okay, I just ordered the replacement flex cable. It is going to take about a month before it arrives from HK , I hope it fixes the issues. I will respond to this post once it is here and installed. Thanks again.
http://www.ebay.com/itm/271660361300?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

omega59 said:
Okay, I just ordered the replacement flex cable. It is going to take about a month before it arrives from HK , I hope it fixes the issues. I will respond to this post once it is here and installed. Thanks again.
http://www.ebay.com/itm/271660361300?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Click to expand...
Click to collapse
in the meantime, pray it isn´t a motherboard issue, the conector can go bad and lose a few solder joints

I have exactly the same problem... I unmounted motherboard and clean everything but didn't help to much... did you find any solution ??

Siamer no solution just waiting for my delivery of the part. However it is getting worse with the blackscreens and crippled lag.

omega59 said:
Siamer no solution just waiting for my delivery of the part. However it is getting worse with the blackscreens and crippled lag.
Click to expand...
Click to collapse
my is the same. sometimes is working for few hours without any problems and than starting again, on the biggining it was power button problem but not I don't even touch that button (I use vol button to turn on) and sometimes screen getting black (with backlight on) and can't do anything so have to reboot... it's so anoying! Hope that parts will fix it, please let me know if you will find some solution. Today I will open phone and clean all connections etc...
Thanks,
siamer

I believe the part may fix it. I noticed if i run my finger along the strip the phone may uncripple itself or just turn black all together. I'm hoping it fixes it. I will report asap but this HK shipping is so slow it will be a month. Also there is no tracking
ATM i'am just trying to becareful with it trying not to trigger the issue. I just did an OTA update using FlashFire (6.0.1 (MOB31E) i wish v.7 will be available for my Nexus 5 ha ha!
Also if the Nexus 7p arrives I may just buy it to replace this Nexus5.

omega59 said:
I believe the part may fix it. I noticed if i run my finger along the strip the phone may uncripple itself or just turn black all together. I'm hoping it fixes it. I will report asap but this HK shipping is so slow it will be a month. Also there is no tracking
ATM i'am just trying to becareful with it trying not to trigger the issue. I just did an OTA update using FlashFire (6.0.1 (MOB31E) i wish v.7 will be available for my Nexus 5 ha ha!
Also if the Nexus 7p arrives I may just buy it to replace this Nexus5.
Click to expand...
Click to collapse
Hi Omega59.
Today I bought air compressed can(name: air dust) and open my nexus 5 as much as I could. I clean everything, every connector, every cable etc. and last few hours is working fine... even power button is working ok. I will let you know in next few hours how it will be, hope will be still ok
Good luck!
siamer
[edit]
there is still same problem, working better than before, black screen not showing so often but still showing... I think tomorrow I will order oneplus3... Would be nice wait to see new nexus but how... :/

Yeah I'm not sure when the Nexus 7p will arrive, they not even advertised much. I will assume next year?
OnePlus 3 looks nice, but compared to Galaxy 7 it's a bit better slightly. You should check out comparison charts
Maybe they are making a OnePlus 4 soon.

oneplus 3 already ordered. I don't like samsung. I would say nexus "7p" or "pixel xl" will be launch october as always prabaly 4th of october - leaks saing that... next oneplus will be launch around july next year as I know. the only phone that I was thinking about was oneplus, htc10 or new nexus but can't wait to see nexus...
today by excident I broke screen in my nexus 5, got a little bit angry
Regards,
siamer

omega59 said:
Siamer no solution just waiting for my delivery of the part. However it is getting worse with the blackscreens and crippled lag.
Click to expand...
Click to collapse
You probably don't want to hear this, but if it's getting worse, it's probably because of the pressure you apply to it, you make it worse. Be careful when you apply pressure around the motherboard since it's very sensitive. You REALLY don't want to break the motherboard. So if you find yourself pushing on the motherboard too often, you might want to leave it and wait for the replacement part so you won't ruin it.
Waiting for your news...

My part arrived yesterday. I put it in was pretty easy, however the first attempt i had to redo the top connector bc it was still black screen and no audio. After I disconnected the top connector ran some alcohol over it, re-put the top part things are working okay.
Just a note, the little USB connector (charger slot) seems to be very tight compared to the old one. Maybe bc it's new and not as worn down. But even just to put the wire in, requires more of a push, same with removing it.
I will see how it goes before I can really say that was the issue. I will report after a few days about it.

siamer said:
oneplus 3 already ordered. I don't like samsung. I would say nexus "7p" or "pixel xl" will be launch october as always prabaly 4th of october - leaks saing that... next oneplus will be launch around july next year as I know. the only phone that I was thinking about was oneplus, htc10 or new nexus but can't wait to see nexus...
today by excident I broke screen in my nexus 5, got a little bit angry
Regards,
siamer
Click to expand...
Click to collapse
I don't think N7P will be out this year, they have not advertised anything and we are almost in Oct. Right now they are all rumors.

omega59 said:
My part arrived yesterday. I put it in was pretty easy, however the first attempt i had to redo the top connector bc it was still black screen and no audio. After I disconnected the top connector ran some alcohol over it, re-put the top part things are working okay.
Just a note, the little USB connector (charger slot) seems to be very tight compared to the old one. Maybe bc it's new and not as worn down. But even just to put the wire in, requires more of a push, same with removing it.
I will see how it goes before I can really say that was the issue. I will report after a few days about it.
Click to expand...
Click to collapse
When I changed my screen and housing it was difficult to slide the USB connector in too. Just make sure that everything is in place, there is a rubber think for the microphone, maybe that's what's in the way. Don't stress the connector too much.