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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

[Q] 5158N replaced with 5158N.. no joy

I decided to learn tablets..so I took on a TF300T repair for a friend to start learning.Looks like this TF300T was the wrong choice.
Background.
TF300T Original digi was shattered and was barley working. possible ghost touches
Andriod 4.2.1
Original Digi 5158N FPC-1 06WW 2010 on the sticker JA-DA5158N-IBB 18140-10120500
I did check a few post before I bought a digitizer saw the issues with mixing different versions. So I went with an ebay digi from china with the 5158 model. I received the new on visual inspection it looks exactly the same. New Digi revived no white label but printed in small black ink on the new digi says 5158 12.28 D4\ 11205019701012D. At the bottom in white ink it says 5158N FPC-1 06WW 1225. seems like a match
I replaced the cracked screen went pretty smoothly. I put double sided tape on the digitizer plastic frame after cleaning the old junk off. I did not remove the top cover from the new tape,I just put the unit back together without screw so I could make sure it worked the plan was to test, re tear down then glue/tape the new digitizer down after I tested. Well I get no touch after the 5158N to 5158N swap.
unit loaded the first time and updated the camera firmware but not the touch
I did check the fuse on the main PCB around the LCD/touch connectors and found no burning.
the first time I powered the unit up with the new digi the screen jitterd a bit but no touch. after resetting the cables still no touch. the jitters stopped.. So at this point I ordered a USB adapter to connect a mouse.
This morning I received the mouse connector. went into settings it said. Touchpanel version ELAN-3011-4822 Kernal version 3.1.10-g215ac8bf
Also had a message about DMClient has stopped on first boot. went away after a few reboots.
Today I tried a cold boot after reading some post. It booted up showing the three icons RK/ANDRIOD/WIPE.. up at the top I got the following line:
andriod cardhu-user bootloader <1.00 e> released by "U5_epad-10.6.1.27.5-20130902" A03
key driver not found...booting 05
starting Fastboot USB download protocol
at this point in the cold boot booting the mouse and keyboard seem to be unresponsive. If I hit vol up I get booting kernal recovery image then i get an android logo and big error message sits there and then boots up normal.Still no touch.
After 1st cold boot I went back to check the touchpanel version and now it says ELAN-0000-0000 the Kernal version is a tad different now its 3.1.100-G215ae8bf
Is this normal and Ive missed something? Could it not be working because I ave not glued the new 5158 to the plastic frame?
Do i need to root the device then flash the touch firmware? Seems to me that it should have just accepted the new 5158 and worked that's why i spent the extra cash to avoid this kind of issue.
Any words of wisdom from some TF300T gurus would be a big help!

Forgot to mention at the time i replaced the touch digitizer I did not know to turn the service switch off. the battery was drained as it had ran down to nothing because I could not touch the power off. hopefully this didn't screw me?

CompJock said:
Forgot to mention at the time i replaced the touch digitizer I did not know to turn the service switch off. the battery was drained as it had ran down to nothing because I could not touch the power off. hopefully this didn't screw me?
Click to expand...
Click to collapse
Barring any hardware malfunction, the only way to find out is to root the thing and flash the firmware anew through ADB. This issue has been discussed so many times, it hardly warrants a new thread.

graphdarnell said:
Barring any hardware malfunction, the only way to find out is to root the thing and flash the firmware anew through ADB. This issue has been discussed so many times, it hardly warrants a new thread.
Click to expand...
Click to collapse
Thanks for the response. I apologize for the new thread, most of the other threads seem to deal with swapping mis matched digitizers and then flashing the rom. I thought because mine was an exact digitizer match it may be a different situation. i was just hoping that my experience had rung a bell and someone may point out my error.
At this point I'm pretty sure its not hardware the microsd card reader that shares the touch digitizer board works. and the touch ELAN chanaged to 0000-0000 only after I did a cold boot.

CompJock said:
Thanks for the response. I apologize for the new thread, most of the other threads seem to deal with swapping mis matched digitizers and then flashing the rom. I thought because mine was an exact digitizer match it may be a different situation. i was just hoping that my experience had rung a bell and someone may point out my error.
At this point I'm pretty sure its not hardware the microsd card reader that shares the touch digitizer board works. and the touch ELAN chanaged to 0000-0000 only after I did a cold boot.
Click to expand...
Click to collapse
Hi, i have the exact same issue. Also the system/etc/firmware/touch folder does not exist. I made it and put inside fw. The device whenever reboots it doesnt automatically update fw from the touch folder as it should. Through adb shell i always get error. Seems like the mobo not recognising digitizer. I also put the old broken one and still the same ELAN-0000-0000 i also forgot the off switch but i cant find any "weird" coil. Any help would be appreciated. I have read the other thread and learned a lot but nothing specific to this problem. Also my micro sd port was not working and i really thought was the pcb, but then i manually updated to the latest asus fw (from 4.1.1 to 4.2.1) and instantly micro sd works. When it wan on 4.1.1 i could find the touch folder and 04-3021-7038.ekt was inside (no label digitizer was the broken one and the new i bought as well). After the 4.2.1 update the touch folder disappeared and had to remake it. Tried with 04-3021-7038 and 02-3011-4820

[Q] I Screwed Something Up

A friend of mine had a Galaxy S3 Amber with a broken (and blank) screen and wanted her data from it's internal memory that is locked and not in debugged mode. I did a lot of research and found the best, most efficient way was to do a motherboard swap with another gs3. I had a Galaxy S3 Blue. I watched a couple of videos and it seemed rather easy. I gathered the proper tools and was EXTREMELY careful not to break or rip anything (and to my knowledge i did not). When i put her motherboard from the amber one into the blue one and the screen would not come on. My first thoughts were it must be her motherboard that went bad. Well when i went to put my blue gs3 back together (again being very careful this entire time) I'm now having the same issue as she was. Black screen, no back light. The bottom lights DO come on and i feel it vibrate when i get a message. There was also no power on chime...
I know its hard to tell with out looking but any ideas on what could be wrong or what i might have screwed up? i checked all the connections and everything looks perfect. Nothing is bent or connected wrong and I didn't force or break anything.
update: so i found that the touch part of it still works fine. i can hear the ripple unlock as well as all the other sounds and such when i touch around and i can here it opening apps. the only issue lies in the screen itself being blank with no back light what so ever,

First of all remove the battery and attempt to power on, then leave without battery for 1 min, I know this sounds silly but it worked on an old iPhone 3G so anythings worth a shot.
If that doesn't work go back into the S3 and make sure all the data clips are firmly in place and locked down but not twisted in anyway. Also make sure their is no moisture or dust on the ribbons. You may not realise it but even the smallest imperfection with this can cause massive issues down the line.
If all else fails her phone may have broke your screen, I don't know how but it is a possibility
Hope I could help and good luck

TechMinerUK said:
First of all remove the battery and attempt to power on, then leave without battery for 1 min, I know this sounds silly but it worked on an old iPhone 3G so anythings worth a shot.
If that doesn't work go back into the S3 and make sure all the data clips are firmly in place and locked down but not twisted in anyway. Also make sure their is no moisture or dust on the ribbons. You may not realise it but even the smallest imperfection with this can cause massive issues down the line.
If all else fails her phone may have broke your screen, I don't know how but it is a possibility
Hope I could help and good luck
Click to expand...
Click to collapse
so i took it apart again today to double check and clean everything and under inspection i noticed a teeny tiny slit on the edge of the lower, bigger ribbon. i know the smallest bit could be horrid. Any fix and would that cause just the screen to not show? i don't know if that is the led connection but i think it may be.

amshook said:
so i took it apart again today to double check and clean everything and under inspection i noticed a teeny tiny slit on the edge of the lower, bigger ribbon. i know the smallest bit could be horrid. Any fix and would that cause just the screen to not show? i don't know if that is the led connection but i think it may be.
Click to expand...
Click to collapse
If theirs a slit I'm affraid that could be it for the screen, like I said even the smallest imperfection can cause massive issues. The slit is probably in the one of the data sections of the ribbon cable which is why data for the screen isn't being carried.
For the fix I don't think their is one unless you can fit a new ribbon on to yout S3's screen
Sorry about the screen

So I took it all apart again. Cleaned ever little thing I could and now it works again. ?

amshook said:
So I took it all apart again. Cleaned ever little thing I could and now it works again. ?
Click to expand...
Click to collapse
Excellent, must have just had some dust or gunk on the cable
Glad you got it working again:victory:

TechMinerUK said:
Excellent, must have just had some dust or gunk on the cable
Glad you got it working again:victory:
Click to expand...
Click to collapse
As am I. Thanks alot for helping. I appreciate it. id buy you a beer if I could lol.

amshook said:
As am I. Thanks alot for helping. I appreciate it. id buy you a beer if I could lol.
Click to expand...
Click to collapse
No problem, thats what XDA is here for:laugh:

[Q] No Service after Battery Replacement

I changed my battery in my Nexus 5 today and I thought everything went smoothly until I booted up and had no service. Does anyone have any experience with this problem or have a solution?
I have already flashed back to factory, removed and inserted my sim card, and tried putting my old battery back in. I didn't remove any antenna cables either (the black and white ones on the sides of the battery).
I googled and ran into this thread, but I'm not sure if the OP ever fixed his problem, and seems to have gone inactive since the post.
https://www.reddit.com/r/Nexus5/comments/2v3cqx/no_service_after_battery_change/

You probably forgot connect antenna, this is similar issue https://www.ifixit.com/Answers/View/199531/No+HSPA++since+teardown
Oat23 said:
I changed my battery in my Nexus 5 today and I thought everything went smoothly until I booted up and had no service. Does anyone have any experience with this problem or have a solution?
I have already flashed back to factory, removed and inserted my sim card, and tried putting my old battery back in. I didn't remove any antenna cables either (the black and white ones on the sides of the battery).
I googled and ran into this thread, but I'm not sure if the OP ever fixed his problem, and seems to have gone inactive since the post.
https://www.reddit.com/r/Nexus5/comments/2v3cqx/no_service_after_battery_change/
Click to expand...
Click to collapse

Thanks for the reply. I made sure everything was connected even though I didn't touch the antenna cables when replacing the battery. I'm trying to figure out what it possibly could be.

Yeah something isn't connected properly

I made sure everything was connected properly. I only removed the battery cable and the ribbon cable next to it to replace the battery. I'm really wondering what it could be. The black and grey antenna cables seem to be properly and snuggly connected. Is there something else on the phone that can effect cell service?
The phone reads that a sim is inserted and can read the phone number off of it, but cannot draw cell service for some reason.

Replaced battery, now no cell signal

Hello xda!
I replaced my own battery, I followed some tutorials on the YouTube to see how to do it and was pretty easy! I was SUPER careful while i was doing it so I don't believe i have broken anything. After reassembling the device is working great but i had no cellular signal!
popped open the back, everything appeared to be in order.
Any ideas and/or suggestions?

RodMyers said:
Hello xda!
I replaced my own battery, I followed some tutorials on the YouTube to see how to do it and was pretty easy! I was SUPER careful while i was doing it so I don't believe i have broken anything. After reassembling the device is working great but i had no cellular signal!
popped open the back, everything appeared to be in order.
Any ideas and/or suggestions?
Click to expand...
Click to collapse
Try reconnecting the network antenna(connected to daughter board and motherboard).

Mr.Ak said:
Try reconnecting the network antenna(connected to daughter board and motherboard).
Click to expand...
Click to collapse
unless it was under the battery, no other connectors were disconnected.
Can I "assume" it's one of the many in row with the battery? If so, I'll go back in and make sure that they are seated properly
Thank you

RodMyers said:
unless it was under the battery, no other connectors were disconnected.
Can I "assume" it's one of the many in row with the battery? If so, I'll go back in and make sure that they are seated properly
Thank you
Click to expand...
Click to collapse
Even if you haven't touched it,just try reconnecting it.It is the main thing responsible for network/signal.The WiFi will still work fine without it though.

The network antenna is actually contained within the back cover of the OPO, as is the NFC antenna. If you look closely, you'll see contact points where the back cover makes contact with the 'main' body of the phone via pairs of small brass springs. If it were me in that situation of not having cell signal after battery replacement, I would remove the back once again, and carefully clean the contact pads on the inside of the back cover. I would most likely use a pencil eraser and VERY lightly 'erase' each and every pad, wiping them off afterwards. Then closely inspect all of the brass springs on the main body for any signs of being bend or somesuch.
Not saying that will take care of the problem, but I do feel that you have a very good chance it will solve it.

Oblias said:
The network antenna is actually contained within the back cover of the OPO, as is the NFC antenna. If you look closely, you'll see contact points where the back cover makes contact with the 'main' body of the phone via pairs of small brass springs. If it were me in that situation of not having cell signal after battery replacement, I would remove the back once again, and carefully clean the contact pads on the inside of the back cover. I would most likely use a pencil eraser and VERY lightly 'erase' each and every pad, wiping them off afterwards. Then closely inspect all of the brass springs on the main body for any signs of being bend or some such.
Not saying that will take care of the problem, but I do feel that you have a very good chance it will solve it.
Click to expand...
Click to collapse
Just did that. I noticed that the push pins had made indentations in the back case. I cleaned them, and they function correctly. Still No cell signal. SIM card is recognised when inserted.
Maybe a new back case?

RodMyers said:
Just did that. I noticed that the push pins had made indentations in the back case. I cleaned them, and they function correctly. Still No cell signal. SIM card is recognised when inserted.
Maybe a new back case?
Click to expand...
Click to collapse
Before you do that, double check the connection at the point indicated in the photo I'm linking to below:
https://d3nevzfk7ii3be.cloudfront.net/igi/EjAVJtVZoJ2NGtYb.medium
https://d3nevzfk7ii3be.cloudfront.net/igi/EjAVJtVZoJ2NGtYb.huge
The solution came from the forum located at:
https://forums.oneplus.net/threads/...creen-replacement.275078/page-2#post-10020028
Let me know if it works for you, yes??

Oblias said:
Before you do that, double check the connection at the point indicated in the photo I'm linking to below:
https://d3nevzfk7ii3be.cloudfront.net/igi/EjAVJtVZoJ2NGtYb.medium
https://d3nevzfk7ii3be.cloudfront.net/igi/EjAVJtVZoJ2NGtYb.huge
The solution came from the forum located at:
https://forums.oneplus.net/threads/...creen-replacement.275078/page-2#post-10020028
Let me know if it works for you, yes??
Click to expand...
Click to collapse
Thank you for the link
Pulled apart, found the connector your link pointed out. Was connected. unplugged and reinserted it. still no go.

RodMyers said:
Thank you for the link
Pulled apart, found the connector your link pointed out. Was connected. unplugged and reinserted it. still no go.
Click to expand...
Click to collapse
I'm at a loss at to what the problem could be then.. And all you did was to remove the back, remove those 9 screws, pop that cover off, unplug the battery, swap batteries, then re-assemble? There's no scenario I can think of that would have caused your network signal to stop functioning.
The very last thing I can think of, and it's what I would do if it happened to me, is to flash the firmware for the radio using TWRP. Just check in your settings to find out what version firmware is being used for your broadband, grab a copy, and re-flash it. It's quick and painless, and just might to the trick. Don't know until you try, and it certainly won't hurt anything.

Oblias said:
I'm at a loss at to what the problem could be then.. And all you did was to remove the back, remove those 9 screws, pop that cover off, unplug the battery, swap batteries, then re-assemble? There's no scenario I can think of that would have caused your network signal to stop functioning.
The very last thing I can think of, and it's what I would do if it happened to me, is to flash the firmware for the radio using TWRP. Just check in your settings to find out what version firmware is being used for your broadband, grab a copy, and re-flash it. It's quick and painless, and just might to the trick. Don't know until you try, and it certainly won't hurt anything.
Click to expand...
Click to collapse
My bad, that was it. I "had connected" it. and that's when I replied. Took it to a cell repair shop. tech opened it up, and connector was off again. Took some time, and he got it snapped in place for good,
I have signal
Thank you for pointing out the link

RodMyers said:
My bad, that was it. I "had connected" it. and that's when I replied. Took it to a cell repair shop. tech opened it up, and connector was off again. Took some time, and he got it snapped in place for good,
I have signal
Thank you for pointing out the link
Click to expand...
Click to collapse
Glad you got it sorted!! You are most welcome!