Unable to start the camera. - HTC Droid DNA

After replacing my cracked display on my DNA, I'm now getting this error.
I know it's hardware related but I don't know exactly where to look to find either a loose connection or which part to replace.
Has anyone successfully corrected this hardware issue or had this problem after a screen replacement?

Icyman said:
After replacing my cracked display on my DNA, I'm now getting this error.
I know it's hardw a r e related but I don't know exactly where to look to find either a loose connection or which part to replace.
Has anyone successfully corrected this hardware issue or had this problem after a screen replacement?
Click to expand...
Click to collapse
One of the motherboard flex cables ( the cable coming from the top assembly where the camera and power button are, attaches to each side of the main board) are not seated properly
Remove the screws and reseat them.

findinghomer said:
One of the motherboard flex cables ( the cable coming from the top assembly where the camera and power button are, attaches to each side of the main board) are not seated properly
Remove the screws and reseat them.
Click to expand...
Click to collapse
That's what I was thinking. Do you think it is the ribbon on the same side as the front facing camera?

I pressed a little harder and the ribbon clicked into place. all good now.

Icyman said:
I pressed a little harder and the ribbon clicked into place. all good now.
Click to expand...
Click to collapse
hi,
can you exactly confirm from where i can press the same? i have the 100% same issue as you faced, i replaced my cracked display all okay except camera its giving error "unable to start the camera".
can you show me some guide or picture from where i can press it after open the handset?
i will really appreciate your cooperation.

deshwani said:
hi,
can you exactly confirm from where i can press the same? i have the 100% same issue as you faced, i replaced my cracked display all okay except camera its giving error "unable to start the camera".
can you show me some guide or picture from where i can press it after open the handset?
i will really appreciate your cooperation.
Click to expand...
Click to collapse
I had taken mobo out to replace battery and afterwards camera was giving me same error message. I think it was the long black wire or one of the whiteboards on that side. I didn't have to take the motherboard out again just unscrewed one black tapelike connector, flipped the whiteboards (1 big 1 small), disconnected the long black wire and reseatted them all and it works now! I'm not sure which one did it but they were all on the volume rocker side of the phone.

Related

Folio 100 Disassembly - Pictures

Hi,
I have disassembled my Folio 100.
Here are the pictures of the internal:
http://www.makhutov.org/downloads/folio100/pix
DerArtem said:
Hi,
I have disassembled my Folio 100.
Here are the pictures of the internal:
h t t p :// w w w. makhutov.org/downloads/folio100/pix
Click to expand...
Click to collapse
But, why?!
Is there a simcard slot inside? Im wondering if our Folio is hardware, or software limited to use a simcard.
Regards
statsminister said:
But, why?!
Is there a simcard slot inside? Im wondering if our Folio is hardware, or software limited to use a simcard.
Regards
Click to expand...
Click to collapse
There is just a place on the PCB for a sim-card slot and also a mini-pcie connector for a mini-pcie datacard, but the parts are not soldered to it.
I don't know if it is possible just to solder the connectors to make it work...
moved to device specific sub-forum on OP request
Best, DK
DerArtem said:
There is just a place on the PCB for a sim-card slot and also a mini-pcie connector for a mini-pcie datacard, but the parts are not soldered to it.
I don't know if it is possible just to solder the connectors to make it work...
Click to expand...
Click to collapse
Interessting, do you think it would be possible to mount the LCD upside down? Because i think viewing angles would be better then (like holding the Folio upside down)?
Where's the RAM memory slot?
bastospn said:
Where's the RAM memory slot?
Click to expand...
Click to collapse
The RAM is soldered directly on the PCB next to the CPU. You can see it for example on picture BILD2363.JPG. On the other side of the PCB (Picture BILD2387.JPG) is space to solder additional RAM chips.
Nemo0815 said:
Interessting, do you think it would be possible to mount the LCD upside down? Because i think viewing angles would be better then (like holding the Folio upside down)?
Click to expand...
Click to collapse
I don't know if the LCD cables are long enough. But even if so you must then adjust the software. Otherwise the picture will also always be upside down. The better way would be to replace the LCD completely with a different one.
it´s posible to change the camera??
The one think i will change is the LCD and possible add some ram! I don't think it will work though.
Regards,
Bastospn
bastospn said:
The one think i will change is the LCD and possible add some ram! I don't think it will work though.
Regards,
Bastospn
Click to expand...
Click to collapse
I don't think that adding RAM is possible. There might be not all parts soldered to be able to solder additional RAM. Even if so soldering so small pins is really hard.....
fenixxx said:
it´s posible to change the camera??
Click to expand...
Click to collapse
This should be possible. It looks like it is a standard USB UVC webcam. But you will also have to adjust the software in order to get the new webcam working.
Do you have some images of the connector of the LCD controller? Also, the Touch panel and LCD should be separated, right? (Can't see that on your pictures)
Nemo0815 said:
Do you have some images of the connector of the LCD controller? Also, the Touch panel and LCD should be separated, right? (Can't see that on your pictures)
Click to expand...
Click to collapse
I have not done a dedicated photo of the connector but you can see it on BILD2355. The brown "box" is the touch screen controller and the cable below is for the LCD. It looks like a LVDS interface.
I think it's a great idea to dismount the device. I'd actually dismount the back cover to see the battery and the sim card slot.
I'll post pictures of it later.
Doumaster said:
I think it's a great idea to dismount the device. I'd actually dismount the back cover to see the battery and the sim card slot.
I'll post pictures of it later.
Click to expand...
Click to collapse
Dude... (rofl)
Hi DerArtem
Is you device still working after you opened it and made all these pictures?
I did them same so my Folio 100 to see what's inside, but after assembling it again, the display didsn't work anymore. The device still boots up, I can use it on an external TV (via HDMI) and also the touch screen still works, it just doesn't display anything anymore. Any idea what this could be (and if I could get it repaired somewhere)?
regards,
Mark (NL)
Sure you connect everythink in place? I don't see how it could be broken if you just open the plastic case and remove same screws.
bastospn said:
Sure you connect everythink in place? I don't see how it could be broken if you just open the plastic case and remove same screws.
Click to expand...
Click to collapse
I am afraid that one of the cables that connecto the display with the mainboard was jammed and maybe damaged. It could also be the FFC-cable which has been under some stress (not the cable itself, but the side that entered the connector).
The screen is being connected to the mainboard by 3 cables. A round cable with a board-to-board connector (I'm afraid one of the wires of this one has been damaged), a small FPC connector (flexible PCB) connected with FPC-connector (this one is ok) and a FFC(foil) cable, where I saw that the copper on the edge was damaged. I cut of 1mm of the cable to let the connector grip a little further on the cable, but this didn't help.
So... either the electronics on the display is damaged, but I think it probably is one of the cables connecting the display with the PCB.
Just hope I can get it to work again...
Try to re-fit the cables, if it doesn't work pull the cables one by one and test it against a multimeter. Be carefull not to damage it even further.
Allways connect yourselt to the ground (touch a piece o metal will do the trick ) to avoid static discharges on components.
You can try to send it back to Toshiba, but I am not sure it they will aceppted under guaranty.
If you don't have spares it could be real hard to do troubleshooting. Toshiba (and other manufactures too) will replace the entire parts suspected to be faulty and will charge for it, so if you could do it on your own you will save some bucks.
Good luck!

[Q] Please help!fixed power and now no touch screen

Please help, I miss my tablet.I had the common problem with the power thingy inside the tablet going out so i opened it to solder but did not fix.So i ordered the charging dock and waited for a month and a half.I get it today and was so excited to only plug it it and got power and charging everything is perfect,i go to swipe over on my arrow to unlock the screen and nothing!I have no touch controls on screen what so ever.But the soft keys work,they do not do me any good but they work.The home key takes me to my home page and mag glass goes to the internet.Does any body have any ideas of what could have happened or what i can do to fix this,please????
alcapone1130 said:
Does any body have any ideas of what could have happened or what i can do to fix this,please????
Click to expand...
Click to collapse
First, check for disconnected or loose cables inside the gTab.
Next, if it isn't a HW fault like loose cables, then connect the USB cable to the gTab and run this ADB command (you will have to install and set up ADB if you haven't already done so):
Code:
C:\SOME\PATH> [B]adb shell "echo -n 1 > /sys/devices/platform/tegra_touch/calibration"[/B]
Digitizer Cable/Connection
alcapone1130 said:
Please help, I miss my tablet.I had the common problem with the power thingy inside the tablet going out so i opened it to solder but did not fix.So i ordered the charging dock and waited for a month and a half.I get it today and was so excited to only plug it it and got power and charging everything is perfect,i go to swipe over on my arrow to unlock the screen and nothing!I have no touch controls on screen what so ever.But the soft keys work,they do not do me any good but they work.The home key takes me to my home page and mag glass goes to the internet.Does any body have any ideas of what could have happened or what i can do to fix this,please????
Click to expand...
Click to collapse
The attached pdf contains photos of the digitizer/cables and their connections inside the gtab. Check for loose connection and/or broken wires on both ends.
Al
aabbondanza said:
The attached pdf contains photos of the digitizer/cables and their connections inside the gtab. Check for loose connection and/or broken wires on both ends.
Al
Click to expand...
Click to collapse
Ok,First thank you so much for helping.Ok,One of the cables you shown does have two broken wires,it is the kind of short wire with black cloth like material over it that runs unde the shiny brown plastic piece.Is there a way to fix that or rig it to get me back up and touching again?Thank you again for helping me out,and you already pinpointed my problem,now i am hoping you can fix it,lol.
Where is the break?
alcapone1130 said:
Ok,First thank you so much for helping.Ok,One of the cables you shown does have two broken wires,it is the kind of short wire with black cloth like material over it that runs unde the shiny brown plastic piece.Is there a way to fix that or rig it to get me back up and touching again?Thank you again for helping me out,and you already pinpointed my problem,now i am hoping you can fix it,lol.
Click to expand...
Click to collapse
I assume since you didn't send in under warranty for the power connector that it's no longer under warrantly!
Exactly where is the break? Close to (or at) one of the connectors? Which end (motherboard end or digitizer end) of the cable? Obviously closness to the connector makes it more difficult. I have seen a post where another use had the break pretty close to the connector & fixed it though.
Al
I totally forgot that i made a youtube video yesterday,here is the address http://www.youtube.com/watch?v=kFNRtDhr5EQ I have been so stressed out about getting my gtab back it slipped my mind.Oh, the broken end is what plugs under the silver area not under the brown area.
aabbondanza said:
I assume since you didn't send in under warranty for the power connector that it's no longer under warrantly!
Exactly where is the break? Close to (or at) one of the connectors? Which end (motherboard end or digitizer end) of the cable? Obviously closness to the connector makes it more difficult. I have seen a post where another use had the break pretty close to the connector & fixed it though.
Al
Click to expand...
Click to collapse
I totally forgot that i made a youtube video yesterday,here is the address http://www.youtube.com/watch?v=kFNRtDhr5EQ I have been so stressed out about getting my gtab back it slipped my mind.Oh, the broken end is what plugs under the silver area not under the brown area.
alcapone1130 said:
I totally forgot that i made a youtube video yesterday,here is the address http://www.youtube.com/watch?v=kFNRtDhr5EQ I have been so stressed out about getting my gtab back it slipped my mind.Oh, the broken end is what plugs under the silver area not under the brown area.
Click to expand...
Click to collapse
If you magnify the digitizer circuit (lower photo in the pdf) you will see the label for each of the lines in the cable. Assuming the lines run straight thru, it looks like the ones that broke are the power & ground to the circuit (VSS & GND). That would explain the touch screen not working at all.
Hard to tell from the video where the breakis, but it looks real close to the connector.
Your best bet may be looking for someone who has a broken digitizer (outer glass) or gTab and is selling it for parts. I looked in the Marketplace forum here on XDA & there is one non working gtablet someone is asking $55 for. I also saw another one up for bid on ebay ($40 latest bid). You my have to ask if the cable is good on them.
Not a whole lot of options for repair. As you've already experienced, the cable is small & fragile.
If the connector has removable pins then you could remove the pins, solder the wire to it & reinsert the pins, BUT from the picture it doesn't look like they are removeable.
You could solder the 2 wires to the pins coming out the back of the socket but they look too small to easily solder to.
The last option would be to rigg the cable to work. There are a couple of possibilites but I would rather you consider the other options before suggesting a repair of the cable itself. If you can, see if you can take a closeup, high res photo of the back fo the connector where the wire broke. PM me & I'll send you my email address to send it too.
Al
aabbondanza said:
If you magnify the digitizer circuit (lower photo in the pdf) you will see the label for each of the lines in the cable. Assuming the lines run straight thru, it looks like the ones that broke are the power & ground to the circuit (VSS & GND). That would explain the touch screen not working at all.
Hard to tell from the video where the breakis, but it looks real close to the connector.
Your best bet may be looking for someone who has a broken digitizer (outer glass) or gTab and is selling it for parts. I looked in the Marketplace forum here on XDA & there is one non working gtablet someone is asking $55 for. I also saw another one up for bid on ebay ($40 latest bid). You my have to ask if the cable is good on them.
Not a whole lot of options for repair. As you've already experienced, the cable is small & fragile.
If the connector has removable pins then you could remove the pins, solder the wire to it & reinsert the pins, BUT from the picture it doesn't look like they are removeable.
You could solder the 2 wires to the pins coming out the back of the socket but they look too small to easily solder to.
The last option would be to rigg the cable to work. There are a couple of possibilites but I would rather you consider the other options before suggesting a repair of the cable itself. If you can, see if you can take a closeup, high res photo of the back fo the connector where the wire broke. PM me & I'll send you my email address to send it too.
Al
Click to expand...
Click to collapse
Wow,Thank you so so much,Can you get me in contact with the guy with the gtab for $55.00,i will buy it and transfer the cash to him immediately,that sounds like the best bet.I will msg you a really good photo still,incase i can not get my hands on the one for sale,but if i can let him know or maybe you could let him know that i will buy it quick enough maybe i can end up with it.I would really feel better just swapping the cable out with another.I will talk back with you tomorrow and again thank you for your time and great help,i really owe you.
Marketplace & Non Working Tab Links
alcapone1130 said:
Wow,Thank you so so much,Can you get me in contact with the guy with the gtab for $55.00,i will buy it and transfer the cash to him immediately,that sounds like the best bet.I will msg you a really good photo still,incase i can not get my hands on the one for sale,but if i can let him know or maybe you could let him know that i will buy it quick enough maybe i can end up with it.I would really feel better just swapping the cable out with another.I will talk back with you tomorrow and again thank you for your time and great help,i really owe you.
Click to expand...
Click to collapse
Here are several link for you
1. XDA Marketplace http://forum.xda-developers.com/forumdisplay.php?f=1321
2. Link to "Wanting to sell" subformum where I found the non working gtab (used forum search for gtablet) http://forum.xda-developers.com/forumdisplay.php?f=476
3. Link to not working gTab http://forum.xda-developers.com/showthread.php?t=1436549&highlight=gtablet.
Take a look at this post & email him to make sure you want it.
Al
aabbondanza said:
Here are several link for you
1. XDA Marketplace http://forum.xda-developers.com/forumdisplay.php?f=1321
2. Link to "Wanting to sell" subformum where I found the non working gtab (used forum search for gtablet) http://forum.xda-developers.com/forumdisplay.php?f=476
3. Link to not working gTab http://forum.xda-developers.com/showthread.php?t=1436549&highlight=gtablet.
Take a look at this post & email him to make sure you want it.
Al
Click to expand...
Click to collapse
Its amazing what a couple of stripped bread ties will doo,lol.I took a bread tie and stripped the paper off of it,cut it to the length I needed and wrapped the remaining wire to one end and pushed the other end of the tie inside the pin hole,lol.It worked like a champ! MY Grab has been up and running for over a month,I just knocked on my coffee table,lol.Thank you for helping me out I really appreciated you trying everything to help me.I am so happy to have it back,now if I can just figure out why I keep seeing black boxes on my games when I play them I will really be doing fine.Thank you again.

Physical buttons do not work well after change screen

Yesterday I changed the screen, everything works correctly except the display buttons, the backlight does not work nor the short press, the long press yes.
Someone can tell me what the button connector is, because I let one loose. I attach a photo of the connector thati dont know how to connect
http://imgur.com/a/KwFOA
I let one loose right now
But, seriously.. you attached the screen but did not connect one of the flat cables? How do you expect everything to work properly?
Tomo123 said:
I let one loose right now
But, seriously.. you attached the screen but did not connect one of the flat cables? How do you expect everything to work properly?
Click to expand...
Click to collapse
im not idiot. Sorry for my english.
The red circled connector in the photo that i attached, has no pins or cables, its only glued to the chasis. I dont know the propper way to connect it

Very Poor Wifi after LCD screen replacement ??

Hello
I swapped my screen on my H850 with another phone and now I have very weak / non existent Wifi signal.
Does anyone know what the solution is ?
Thanks
dickybow said:
Hello
I swapped my screen on my H850 with another phone and now I have very weak / non existent Wifi signal.
Does anyone know what the solution is ?
Thanks
Click to expand...
Click to collapse
Hello Dickybow,
I don't know whether this would help you, but according to the HCT FCC document mentioned at https://forum.xda-developers.com/lg-g5/how-to/gps-issues-demystified-t3707934 the wifi antenna is ANT5. So if you could check out whether the motherboard contact points is touching the rear cover's wifi antenna or not. And also check that the phone is tight screwed so there won't be any gap.
I think that since you replaced the screen, that maybe the back cover isn't seated good or perhaps screws not tight enough (hopefully)
You could also try to push the rear cover on that antenna spot :silly:
Thankyou for your response - now fixed
One end of the black ribbon cable that runs across the mainboard must have come unattached during disassembly - refitted and now back to normal !
dickybow said:
Thankyou for your response - now fixed
One end of the black ribbon cable that runs across the mainboard must have come unattached during disassembly - refitted and now back to normal !
Click to expand...
Click to collapse
hallo, i have a same problem, where is that black cable? no black cable in my US992

My Screen, Please help ☹️

Guys please help. The touchscreen still works on the checkered half when I touch it. I'm just not sure why this is appearing
Link to a picture I took:
https://drive.google.com/file/d/1K092kBzvTuA9ODTBZI060-R5ujtbIYxf/view?usp=drivesdk
none24 said:
Guys please help. The touchscreen still works on the checkered half when I touch it. I'm just not sure why this is appearing
Link to a picture I took:
https://drive.google.com/file/d/1K092kBzvTuA9ODTBZI060-R5ujtbIYxf/view?usp=drivesdk
Click to expand...
Click to collapse
That looks like a hardware issue. It could be a loose ribbon cable to the display. That would require a teardown to check and fix. If your tablet is still under warranty that would be the place to start.
jd1639 said:
That looks like a hardware issue. It could be a loose ribbon cable to the display. That would require a teardown to check and fix. If your tablet is still under warranty that would be the place to start.
Click to expand...
Click to collapse
I was able to open the backside and i reseated the LCD cable that runs to the board connector near the camera, but it still does the same thing.
Could it be possible that the opposite end of the ribbon cable is disconnected? i've never seen an android tablet that has 2 connectors for the display

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