Blacklight screen on motorola photon Q => flex cable ? - Motorola Photon Q 4G LTE

Hi there, i'm French and i bought a motorola photon Q on January 2015. Today, the phone goes into the screen blacklight issue...i ask your help because i don't know what i have to do...a priori it's a well known issue on photon but i didn't success to find a solution...
The phone's screen is black but the phone is in fonction, i can take pictures or receive SMS...just the screen doesn't display anything... i tried to maintain power+vol down buttons but when i reboot i don't have the motorola logo, as instead the screen display a cloud of dots white, black, red during few seconds and turn on black screen again...i can't have the motorola red logo, i don't know what to do...if i have to replace the LCD or not ? re install a ROM by PC or not...the phone is out of order ? that's the flex cable issue ? i don't want to buy a flex cable or a LCD if the problem doesn't come from that...i'm block and i hope you can help me...
Thanks in advance

Did you lose LCD or backlight? I don't know if only backlight could be broken.
If your LCD is completely black and nothing at all, I suspect your flex cable is gone, which is a fairly common problem of this device.
btw, Did you buy a new one? it mostly takes +2 years before you see any problem there, though.

Thanks for the answer,
i lost the LCD, it's completely black...nothing...
i unmounted the phone, check for the plug and i noted that the flex black cable is damaged, the surface becoming bright grey with friction of the keyboard open/close mouvements... Maybe a short-circuit have also damaged the LCD...i'm wondering... i don't know what i have to order... simply the flex cable ? or flex cable + LCD ? i don't want to buy some pieces if they are useless or the phone still goes out of order with...
I used to use all the time, it's my computer, my phone, my organizer... it's maybe the reason that the phone went out of order quickly.
Where can i buy this flex cable for reasonable price in Europe ? with sending and custom fees that cost more than 50€, it's very expensive for an eleven mounths cable lifetime :/

I have to remind you that replacing a flex cable is not easy, unless you are comfortable at these things.
Why don't you get a decent used one from ebay or something? replacing the mainboard will be a lot easier than taking your screen apart.

palmwangja said:
I have to remind you that replacing a flex cable is not easy, unless you are comfortable at these things.
Why don't you get a decent used one from ebay or something? replacing the mainboard will be a lot easier than taking your screen apart.
Click to expand...
Click to collapse
I think i can, i've already repaired hundred times my old droid 2...
i can't buy an other cause it's too expensive...this one already cost me a kidney with sending and custom fees... furthermore in Europe nobody sell this phone... i must replace the flex cable, it's less expansive :s and even like that i think it's too expensive...50€ for a cable it's a power abuse...
Do you know a website that sell spare pieces in Europe ? maybe it will be less expensive to buy it directly here
thanks a lot

Related

FUZE keypad backlight and LCD backlight problem. Please help...

New Problem :
Please see post #10.
Old Problem ( solved ) :
Hello,
I had told my problem in this thread but got no response so had to create a new thread to see if someone helps.
My problem ( I mean my fuze's ) is :
Firstly my fuze was having few scratches and the digitizer was broken lil in the edge/corner so I thought to replace its digitizer.
Brought new digitizer ( 2 months back ), disassembled the device and while removing the flex cable, broked its buttons strip ( volume and ptt button ) and while removing/separating lcd from digitizer, I destroyed both!
So next I brought new lcd and flex cable. Stupid seller sent touch pro flex cable instead of fuze. Had it return it and the fuze flex cable is on way now.
In the meanwhile, I tried to install new lcd+digitizer and damaged flex cable but I'm getting only backlight and no display/image. Sometimes I get thin RGB/rainbow vertical lines and once or twice I got the display/image too. As the adhesive conductive tapes/fabric/stickers got weaker I brought new copper conductive tape ( Like this ) and sticked them but still I'm not getting display/image and only backlight.
I'm very fedup and stressed about this although spent 100$ and Due to this, I able to cook roms and I'm out of xda dev since 2 - 3 months :'(
If someone could help, you will be greatly appreciated. Please please help!
I don't have money to buy new device either and have no mobile phones to play with since from fuze is dead.
Thanks a lot in advance....
Best Regards
I replaced the lcd in my phone and had the same problem. I later discovered that I didn't have the ribbon connector in all the way. I hope this helps.
you need a working flex cable...the same thing happened with but on a nokia n95...the blacklight was comin but no display changing the flex helped
Cingularman said:
I replaced the lcd in my phone and had the same problem. I later discovered that I didn't have the ribbon connector in all the way. I hope this helps.
Click to expand...
Click to collapse
I'm not a mobile tech.., could you please let me know what/which is a ribbon connector?
Thanks for the help though.
djteotancolis said:
you need a working flex cable...the same thing happened with but on a nokia n95...the blacklight was comin but no display changing the flex helped
Click to expand...
Click to collapse
But had it working once and twice. However, I will get new flex cable in few days.
BTW; I had also tried the new touch pro flex cable and had same issue.
Thanks for the help though.
Best Regards
CRACING said:
I'm getting only backlight and no display/image
Click to expand...
Click to collapse
Hi
I had the same problem last night (wasted 3 hours). Just replaced my LCD as well, broke digitizer was a problem. Anyway, after taking a phone a part 3 time figure out what the problem was.. The two ribbon cables have to touch (mostly likely a ground).. The LCD one and log flex one.. I will try to find you a picture..
Now I have a different problem, can't align the screen properly. The right side on screen is way off.. What a mess..
Green
sadik007 said:
Hi
I had the same problem last night (wasted 3 hours). Just replaced my LCD as well, broke digitizer was a problem. Anyway, after taking a phone a part 3 time figure out what the problem was.. The two ribbon cables have to touch (mostly likely a ground).. The LCD one and log flex one.. I will try to find you a picture..
Now I have a different problem, can't align the screen properly. The right side on screen is way off.. What a mess..
Click to expand...
Click to collapse
sadik007 said:
Green
Click to expand...
Click to collapse
I tried everything but didn't got it working. Though I have doubt on original flex cable that I broken while removing.
I have trouble with getting new flex cable on ebay. First the seller sent wrong flex cable ( TP's which it doesn't fit for fuze ), 2nd time the flex cable lost in shipment and 3rd the seller didn't had stock to resend so refunded.
Now I have brought the flex cable from different seller and its about 14 days and not yet received.
When I tried touch pro flex cable I didn't get the display but only backlight but once or twice I saw the display so I think it was something wrong in my connect. However I didn't had much time to test the device using touch pro flex cable because I had to return it!
This is what I'm playing with my device since 4+ months. Mostly waiting waiting waiting......
Thanks...
Best Regards
I can see that ribbon hold contact.
obaz said:
I can see that ribbon hold contact.
Click to expand...
Click to collapse
The ribbon aka conductive tape/sticker I have is no longer usable. Its adhesive gum is too weak and no longer sticks. I have searched lot to find such conductive tape/sticker and found copper conductive tape/sticker. Using it now.
@sadik007 and all
I got the flex cable today and after testing, I' getting same problem. No display but only backlight. I see some minor rainbow lines which haven't saw before but as said, I checked the grounding and everything seems correct.
Fed up of this and desired to sell it as parts or repairable...
Best Regards
Finally my fuze is back alive.
Got Correct Flex cable and new LCD. Now its working perfectly.
However, a minor problem if anyone can help.
The brightness setting of LCD in settings -> System -> Power -> Backlight seems to work only till 40% and then after it doesn't increase the brightness of the lcd.
In auto mode, its same. I think the brightness is working only upto 40% and then it doesn't increase.
Cannot understand whats but I guess its because the seller gave me diamond lcd instead of touch pro/fuze. As I can see, diamond lcd doesn't have variable resistor and my friend say its a brightness setting.
But the hardware setting should be atleast full and we could decrease through software.
Can body help me how to solve this problem? I guess its not possible.
P.s the brightness from 0% to 40% is not bad to use but may have trouble in sunlight.
Thanks a lot for all your helps...
Best Regards
p.s My problem is something like this but the backlight is working fine.
Edit;
I don't think my FUZE stops giving troubles. New problem started since last night and today.
As the backlight was lil dim on sun light, I went to try Lumos app. Didn't saw any difference, just sucked at 40%
Today when I booted my fuze morning, it started to do some malfunction in LED lights ( LCD backlight and front penal keypad backlight light ). Backlight of keypad is no longer working when pressed its button but buttons work fine. And also if I slide out the hw keyboard, the home button backlight turns ON. and also the d pad circular light and back button backlight.
Cannot under stand what the hell is going on. If I get any SMS or EMail, d pad circular light rounds fine but if I connect USB to charge, d pad circular light doesn't work.
I removed the Lumos app, softrebooted, hardrebooted, and reflashed but still same problem.
Any idea?
I guess I'm stupid or the device is fooling me.
Thanks again...
Best Regards
Bump...
I don't think my FUZE stops giving troubles. New problem started since last night and today.
As the backlight was lil dim on sun light, I went to try Lumos app. Didn't saw any difference, just sucked at 40%
Today when I booted my fuze morning, it started to do some malfunction in LED lights ( LCD backlight and front penal keypad backlight light ). Backlight of keypad is no longer working when pressed its button but buttons work fine. And also if I slide out the hw keyboard, the home button backlight turns ON. and also the d pad circular light and back button backlight.
Cannot under stand what the hell is going on. If I get any SMS or EMail, d pad circular light rounds fine but if I connect USB to charge, d pad circular light doesn't work.
I removed the Lumos app, softrebooted, hardrebooted, and reflashed but still same problem.
Any idea?
I guess I'm stupid or the device is fooling me.
Thanks again...
Click to expand...
Click to collapse
Same problem.
Backlight setting changes only 1-4 interval and does not brighten 5 and more.
I had heard that problem one sells his tp which's lcd replaced.
Options:
1) while replacing, flex can be damaged. I do change screens for 6 years and hard to beleive it.
2) keypad membrance can be damaged while replacemnt of lcd. More harder than option 1.
3) eBay sellers sells fake lcd screen.
I handle over 5 diamond and tp screen far away and still keep some cracked ones. They all different from each other. Somehow there must be different versions of these lcd's.
By the way I also tried a diaond lcd and it gives same error.
first 4 step is ok but no more 5 to 10 steps working.
Problem was solved:
HTC P3700 LCD and P4600-T7272-touch Pro LCD screens are different.
here is the differences illustrated on photos:
@sokomind
nice find. Yeah I do see the changes from touch pro lcd and diamond lcd. touch pro lcd has 10 led levels and diamond has only 5.
Part No :
Diamond LCD with 5 LED brightness levels : 60H00130-00M
Touch Pro LCD with 10 LED brightness levels : 60H00129-00M
29 is what we need for Touch Pro but in ebay sellers don't know the difference of these lcds. They ship what ever stock they have. I had requested to send Touch Pro LCD and also said the part no but they sent the diamond LCD.
Damaged 3 times in shipping and when I got the working one, it was diamond lcd.
Anyways, now I'm using the device has a 3g data card and 3g router. Working g8.
Thanks...
Best Regards
I still have the problem as #"10 cracing.
I got a diamond lcd and then ordered a touch pro lcd.
Yes TP LCD is brighter but it is still working 4/10 on brightness. And then I see that my flex cable has lost one of the way. I try to fix it but it still give me 4/10. I do not know if it fixs a new flex. I do not want to spend $20 more.
Have you spare TP flex not fuze?

Broken lcd screen/digitizer

So, a few weeks ago my phone started acting weird. When I would open the keyboard, my screen would turn off. It did this for a few days, then it got worse. I couldn't even use my keyboard. Then, my screen would randomly start flickering... and now it just won't come on at all. The phone comes on, I can see the notification light blinking, but the screen won't come on at all.
I'm going to buy a replacement part for it, but I'm not sure if it's the digitizer or lcd screen. Anyone know which one it would be?
...at first...no digitizer, no display.
open the phone and check flex cable connection - maybe is poor connected.
If this not help then check flex cable.
CornholioGSM said:
...at first...no digitizer, no display.
open the phone and check flex cable connection - maybe is poor connected.
If this not help then check flex cable.
Click to expand...
Click to collapse
yeah i was thinking it could be the flex cable, but i haven't played with it much yet. maybe i will tonight and see if my flex cable is disconnected/bad... but i couldn't find any replacement flex cables (without a lcd display or digitizer) anywhere.
IF it was the lcd, what would the symptoms be?
check flex connection and let me know
Was you photon disassembled?
CornholioGSM said:
check flex connection and let me know
Was you photon disassembled?
Click to expand...
Click to collapse
previous to the screen ****ing up it was never disassembled
Where would you be finding replacement parts?
Thanks
the internet is an amazing tool
Someone in the forums directed me to this: http://www.etradesupply.com/motorola/android-models/motorola-photon-q-4g-lte-xt897.html
Maybe it'll help.
Egoista said:
Someone in the forums directed me to this: http://www.etradesupply.com/motorola/android-models/motorola-photon-q-4g-lte-xt897.html
Maybe it'll help.
Click to expand...
Click to collapse
hmmmmm good prices - keyboard with cover for $12 is very good.
....or you can simple use ebay
i have a spare Photon Q in working order for parts.
Because simcard mod didn't work, it's a pda lol hahahah
if you still need a screen, let me know, we work a prize out incl sending
Gojira-r32 said:
i have a spare Photon Q in working order for parts.
Because simcard mod didn't work, it's a pda lol hahahah
if you still need a screen, let me know, we work a prize out incl sending
Click to expand...
Click to collapse
....why not work???
Resistor gone after fail sim mod
Gojira-r32 said:
Resistor gone after fail sim mod
Click to expand...
Click to collapse
...this is not big problem...post me photo on PM
PM will send tonight after an hour or 2
flex cable
Corn,
Can i post photo of my flex cable, to let know what you think if its broken or not,
the black coating of the cable were ripped off caused by the heat and friction to the metal clip and body,
often i play game application and while xt897 condition is heat i slide it to reply an incomming message,
and im about also to but the parts from etradesupply.com is it recommended or is there another supplier you recommend for xt897 flex slide cable, this damage also happen to my xt862 the previous year.
CornholioGSM said:
...this is not big problem...post me photo on PM
Click to expand...
Click to collapse
jspdjanggo said:
Corn,
Can i post photo of my flex cable, to let know what you think if its broken or not,
the black coating of the cable were ripped off caused by the heat and friction to the metal clip and body,
often i play game application and while xt897 condition is heat i slide it to reply an incomming message,
and im about also to but the parts from etradesupply.com is it recommended or is there another supplier you recommend for xt897 flex slide cable, this damage also happen to my xt862 the previous year.
Click to expand...
Click to collapse
yessss no problem
i've always wondered if there is actually some way to buy flex cables replacements in case they break... so far, i have only found the whole frontal assembly which costs quite a lot and that includes the flex cables, turning what would have been a couple $ repair into a very expensive (and probably not worth) one
i got an old working photon q that i was keeping myself for spares in case...
if you want a part then PM me. x
need advise
CornholioGSM said:
yessss no problem
Click to expand...
Click to collapse
helo corn,.
can you please have a look to this http://forum.xda-developers.com/showthread.php?t=2580958
i'm confused how to release replace my flex cable
Is there a tutorial how to replace the flex cable with front camera as selled by parts4repair? Or is it really foolproof?
It seems to me like I'm facing the same issues as described in the start post, only in an earlier stage of degeneration of the flex cable:
1. Suppose, the Photon Q is turned on and in operation. When sliding out the keyboard only some millimeters, the screen goes black. If I press the power button at this stage (keyboard slid out some millimeters, screen black), the phone seems to crash and reboots.
2. Suppose again, the Photon Q is turned on and in operation. This time I slide out the keyboard all the way (no matter how fast). The screen goes black. Pressing the power button at this stage doesn't show any effect. Only after pressing it a second time, the Photon Q is awake again, showing me the lock screen - apparently no crash and no reboot!
3. Suppose, the Photon Q is turned on and in operation. I turn the screen off by pressing the power button once, then I wait for some seconds and slide out the keyboard all the way. When I turn on the screen this time by pressing the power button, the lock screen appears as expected and everything is working fine.
All these scenarios also work the other way round, i.e. you assume the keyboard is already slid out all the way and you perform the slide-in movement. Also, this is not a software issue as it behaves analogously during reboot or in recovery mode. Furthermore, I opened my phone. The flex cable was connected properly and I couldn't see any damage to the flex cable. So it seems to be an internal loose connection of the flex cable.

[Q]Tablet not turning on after digitizer replacement

So I broke my digitizer glass a few weeks ago. I ordered a new digitizer off ebay... I made sure I ordered the correct version (it was the "no model version" or whatever). Installed it which was really annoying because of all the nasty glue.
Now I can't get the tablet to turn on at all. Before at least the LCD was functional. The red charging light comes on when I plug in the charger but that's it.
Any way I accidentally broke a cable or something when I was taking it apart? I checked it all and everything seems fine... I really don't know what to do.
Assuming I can't get it fixed, think I could sell the broken tablet for anything?
Thanks!
zaner123 said:
So I broke my digitizer glass a few weeks ago. I ordered a new digitizer off ebay... I made sure I ordered the correct version (it was the "no model version" or whatever). Installed it which was really annoying because of all the nasty glue.
Now I can't get the tablet to turn on at all. Before at least the LCD was functional. The red charging light comes on when I plug in the charger but that's it.
Any way I accidentally broke a cable or something when I was taking it apart? I checked it all and everything seems fine... I really don't know what to do.
Assuming I can't get it fixed, think I could sell the broken tablet for anything?
Thanks!
Click to expand...
Click to collapse
Of course you can resell the tab in its current state. Quickly or slowly depending on the asking price. But before doing that, you should check one more time. The fastest way is plug it to a TV monitor via the micro HDMI port. If it comes on, at least you know the system is working except for the video. Past that, there can only be two possibilities. (1) Bad lcd: something might have happened when you pried it off the broken digitizer; and/or (2) the video cable is bad, or improperly connected - by that, I mean you need to make sure it fits all the way in at both ends (mainboard & LCD). Check connection with a magnifying glass, You won't believe how many times people forget to reconnect the cable or connect it wrong. Lastly, if you did turn the service switch off, make sure it's turned on again. Good luck.
LCD to Mainboard connection...can it be connected "wrong"? Or simply not as snug as it should be?
Also, what is the service switch?
zaner123 said:
LCD to Mainboard connection...can it be connected "wrong"? Or simply not as snug as it should be?
Also, what is the service switch?
Click to expand...
Click to collapse
Here's the link to the relevant thread. Search for the necessary information within it. The cable that goes from LCD to mainboard is labeled: "MB" end goes to mainboard. The service switch is located at the top of the mainboard looking from the back, to the left of the power button ribbon (top right corner of tab), and is labeled "on"/"off". You should turn it off before doing anything. It cuts off all current to the boards and prevents accidental shortcircuitings. If you don't and mess around with the digitizer board, you might burn a fuse that controls the dig's operations. But this is for later. Go to the thread and browse it.

[Q] nexus 5 colorful dots all over screen... PLEASE HELP!?!?!?

Hello, I am a newbie on this forum.. I have been having issues with my Nexus 5 and was wondering if yall could help me figure out what is going on.
When I turn my Nexus 5 on sometimes the display comes on and sometimes it doesn't. When it does come on, all I get is a screen full of dots. Tiny little dots covering the entire screen. It also doesn't usually go into fastboot mode, but it has twice in what seems like 100 million times trying since this happened. I just replaced the display as it was shattered from a drop, I thought that could be the issue but that didn't help.. So maybe the gpu? I don't know... I'm much more familiar with desktops than phones.. So please help, I'll do anything at this point, even if it takes forever.
Pull it apart again and check all connections.
Sent from my Nexus 5 using XDA Free mobile app
In order from most likely to least likely, as well as cheapest repair to most expensive:
- Flex cable
- Screen
- Motherboard
A lot of people have had such issue and it's mostly been the flex cable.
Lethargy said:
In order from most likely to least likely, as well as cheapest repair to most expensive:
- Flex cable
- Screen
- Motherboard
A lot of people have had such issue and it's mostly been the flex cable.
Click to expand...
Click to collapse
Thank you so much, I hadn't even thought about that. I will get back to you after I order a flex cable. hope you're right. thanks again.
Nothing has changed. I got a new flex cable and the exact same thing is happening. What do I do now?
dvandevelde1 said:
Nothing has changed. I got a new flex cable and the exact same thing is happening. What do I do now?
Click to expand...
Click to collapse
Then its the screen or motherboard. I would just send it in to LG for repair rather than guessing between the two and possibly wasting money.

Flex cable broke and screen replacement

Good day everyone. It's about midnight here in Germany and I hope some of you can help me. The problem is I wanted to replace the display from my girlfriend's mi mix 3. After I spend about 150€ for the display and glue (which kinda sucks, need to buy another one) and getting a used broken screen replacement. I'm trying about a month to replace it. Finally I got all my parts but I turned of the DC dimming in settings an the display turned black. Twrp and co is working but as soon as the system starts the screen is getting black and I can't switch DC dimming on again. But even better, the flex cable from the LCD broke and I can't find a replacement part for it !!! I'm so frustrated. I hope some of you guys could help me with the DC dimming problem and maybe a seller for the cable :/.

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