Hi, first of all really thanks for this awful forum it helped me a lot in the past. But now i have a huge problem with a device the LG g3s D722 for be more specific i. I have a backlight problem it seems.
The light is at 0 and won't light at all. I can see barely something with some led light trough the display. I tried to restore with hard reset, changed the lcd but nothing. My question is
There is a service manual or someone who know where the backlight ic is located?
If someone could help me would be great :\ Thanks in advice for the replies.
Virgin Vermillion said:
Hi, first of all really thanks for this awful forum it helped me a lot in the past. But now i have a huge problem with a device the LG g3s D722 for be more specific i. I have a backlight problem it seems.
The light is at 0 and won't light at all. I can see barely something with some led light trough the display. I tried to restore with hard reset, changed the lcd but nothing. My question is
There is a service manual or someone who know where the backlight ic is located?
If someone could help me would be great :\ Thanks in advice for the replies.
Click to expand...
Click to collapse
I want to help but I can't figure out what you're saying, 2nd this is the general section and this to me sounds like a question....
Still_living714 said:
I want to help but I can't figure out what you're saying, 2nd this is the general section and this to me sounds like a question....
Click to expand...
Click to collapse
Hi, thanks for trying to help me. If you go on youtube and search for : iPhone 3Gs backlight dim LCD 6R8 coil inductor fix repair. You will know my issues.
In few words i have the brightness at max but i do not have light on the display, seems at 0. I was searching for a schematic PCB of this device for localize the backlight chip without success. If someone here know how to solve this problem or have a schematic of the LG g3 D722 or similar model would be great.
Virgin Vermillion said:
Hi, thanks for trying to help me. If you go on youtube and search for : iPhone 3Gs backlight dim LCD 6R8 coil inductor fix repair. You will know my issues.
In few words i have the brightness at max but i do not have light on the display, seems at 0. I was searching for a schematic PCB of this device for localize the backlight chip without success. If someone here know how to solve this problem or have a schematic of the LG g3 D722 or similar model would be great.
Click to expand...
Click to collapse
Maybee here?:
http://gsm-manuals.com/18-Lg schematics and service manuals.html
Gesendet von meinem LG-D855 mit Tapatalk
tschmid said:
Maybee here?:
Gesendet von meinem LG-D855 mit Tapatalk
Click to expand...
Click to collapse
Hi, sadly i already checked. :\
I would like to post an image of the real motherboard but the forum can not allow me.
Related
I have the dash for two weeks now (wm6.5)... about 3 days ago and out of the blue the lcd started to show this white scanlines. It was just placed next to the pc and connected by the usb cable when i noticed the problem (it wasn´t phisically damaged). I hard reseted it...nothing. Installed wm6 and wm5 and nothing.. the lines are still there. I am pretty upset with this matter
Is it the lcd or something else..?
How can i fix it and prevent this to happen again?
Does anybody know if this problem is covered by the warranty and under which arguments?
Thanks.
Here is a picture of the screen so you can get an idea...
http://www.subirimagenes.com/otros-htc620whitelines-3724327.html
Not a single answer to this post! Come on guys i am desperate...
MProdigy said:
Not a single answer to this post! Come on guys i am desperate...
Click to expand...
Click to collapse
Maybe something is loose regarding your lcd (hardware), If you haven't dropped maybe you should give a shot with your warranty and probably you will get a new dash
sure you have problem with your display.you must change,or if it is new go to store,for change.good luck,and a happy cristmanth
if you say you already did some hard reseting then it's a hardware problem.. if the warranty does not cover it then try to disarm it following the instructions that you can find in this forum.. suerte amigo!
Thanks guys for the advices. I purchased a new lcd, relaced it and now it works right, seems like the problem is solved. I hope i don´t get any more problems in the future cause the dash has everything i want in a mobile phone.
MProdigy said:
Thanks guys for the advices. I purchased a new lcd, relaced it and now it works right, seems like the problem is solved. I hope i don´t get any more problems in the future cause the dash has everything i want in a mobile phone.
Click to expand...
Click to collapse
Good to know that you solved your problem
Hi all. My phone felt on the floor from 1,5 metres and now I get errors while trying to switch on bluetooth or wifi. I wiped all, flashed stock rom with stock boot.img and already done all can I do in terms of software modifications.. Also I deassembled it to be sure any cable is disconnected. In fact seems that all is ok . Surely is an hardware fault but I don't know where wifi and bluetooth hardware is. Can anyone help me telling me where they are ? Maybe with a photo of the internal part of the hox to indicate them.. Maybe I didn't look with attention for a disconnected cable or a broken part..
Also my cpu is unable to go in deep sleep now..
Please help me guys
Mikyno said:
Hi all. My phone felt on the floor from 1,5 metres and now I get errors while trying to switch on bluetooth or wifi. I wiped all, flashed stock rom with stock boot.img and already done all can I do in terms of software modifications.. Also I deassembled it to be sure any cable is disconnected. In fact seems that all is ok . Surely is an hardware fault but I don't know where wifi and bluetooth hardware is. Can anyone help me telling me where they are ? Maybe with a photo of the internal part of the hox to indicate them.. Maybe I didn't look with attention for a disconnected cable or a broken part..
Also my cpu is unable to go in deep sleep now..
Please help me guys
Click to expand...
Click to collapse
Google for a YouTube tutorial on changing screen or something, they often explain what each part is as they are disconnecting or reconnecting
Sent from my HTC One X using Tapatalk 2
nogotaclue said:
Google for a YouTube tutorial on changing screen or something, they often explain what each part is as they are disconnecting or reconnecting
Sent from my HTC One X using Tapatalk 2
Click to expand...
Click to collapse
I tried but didn't find any detailed tear down.. Can u help me please ? I am thinking of changing the mobo by myself..
This site/article may be able to help you
landoftechnology website
htc one x hardware issue causing wifi issues <--- try googling this, and the correct site/link should come up, it is not letting me post a URL
Good luck!
WarpSeeker said:
This site/article may be able to help you
landoftechnology website
htc one x hardware issue causing wifi issues <--- try googling this, and the correct site/link should come up, it is not letting me post a URL
Good luck!
Click to expand...
Click to collapse
It's not this issue.. I mean wi fi is not working anymore.. It doesn't switch on because it felt on the floor..
What about changing the motherboard ? http://www.ebay.com/itm/HTC-ONE-X-S...rd-With-Cameras-AS-IS-For-Parts-/251255883891 with this one ? Is the tegra chip present ? I need only to swap them?
Mikyno said:
I tried but didn't find any detailed tear down.. Can u help me please ? I am thinking of changing the mobo by myself..
Click to expand...
Click to collapse
this video is for screen replacement but it shows how to remove and replace mobo https://www.youtube.com/watch?v=OIeO0DueMcg
I hope you are not thinking of buying the mobo in the ebay link? it states "untested", "moisture sticker activated" and "ripped cable"!!
nogotaclue said:
this video is for screen replacement but it shows how to remove and replace mobo https://www.youtube.com/watch?v=OIeO0DueMcg
I hope you are not thinking of buying the mobo in the ebay link? it states "untested", "moisture sticker activated" and "ripped cable"!!
Click to expand...
Click to collapse
Thanks .. Where I can buy it at a decent price ? It costs like 160 euro..
Mikyno said:
Thanks .. Where I can buy it at a decent price ? It costs like 160 euro..
Click to expand...
Click to collapse
Don't know which country you are in, but they are going for about £70 on UK site. Alternatively have you considered just buying the antenna boards? I have seen those going on UK eBay for just under £15
Sent from my Awesome One X on ViperX 3.5.5 using XDA Premium
nogotaclue said:
Don't know which country you are in, but they are going for about £70 on UK site. Alternatively have you considered just buying the antenna boards? I have seen those going on UK eBay for just under £15
Sent from my Awesome One X on ViperX 3.5.5 using XDA Premium
Click to expand...
Click to collapse
Can u link it in a private message? Both of them please.. I can't use wifi or bluetooth and I am really really sad
Mikyno said:
Can u link it in a private message? Both of them please.. I can't use wifi or bluetooth and I am really really sad
Click to expand...
Click to collapse
PM'ed you
Hello everyone and happy 2014 year! I apologize if the subject site is not correct, but I have a big problem and I hope you can help me. So my problem is recently I got HTC Desire HD, but with a screen in a very bad condition. The problem is that once it is fully charged it does not even vibrate when i turn it on and can not figure out if it works. My question is how can I check is the motherboard work?
PS: Im so sorry for my bad english!
SkHowl said:
Hello everyone and happy 2014 year! I apologize if the subject site is not correct, but I have a big problem and I hope you can help me. So my problem is recently I got HTC Desire HD, but with a screen in a very bad condition. The problem is that once it is fully charged it does not even vibrate when i turn it on and can not figure out if it works. My question is how can I check is the motherboard work?
PS: Im so sorry for my bad english!
Click to expand...
Click to collapse
I don't understand. The problem is that the phone, when fully charged, doesn't vibrate. If I were you I would not bother opening up the phone. If you can't live without the vibration then you can replace it, if it's the faulty part.
Unfortunately it's not possible to determine what is causing your problem from this side
Inviato dal mio GT-I9100
totalnoob34 said:
I don't understand. The problem is that the phone, when fully charged, doesn't vibrate. If I were you I would not bother opening up the phone. If you can't live without the vibration then you can replace it, if it's the faulty part.
Unfortunately it's not possible to determine what is causing your problem from this side
Click to expand...
Click to collapse
The vibrate is`t a problem i can replace it, i can opening phone (4 times i do it in one day :laugh: ) The problem is: i cant determninate is the motherboard work or not. It isn`t vibrate, start light or something to show it is live... Thats why i search for other ways to determining motherboard problem with tools. I want to know this other ways :laugh: maybe molticet (multitool) + power supply maybe i dont know
SkHowl said:
The vibrate is`t a problem i can replace it, i can opening phone (4 times i do it in one day :laugh: ) The problem is: i cant determninate is the motherboard work or not. It isn`t vibrate, start light or something to show it is live... Thats why i search for other ways to determining motherboard problem with tools. I want to know this other ways :laugh: maybe molticet (multitool) + power supply maybe i dont know
Click to expand...
Click to collapse
When it's not showing any sign of life, check the battery
Inviato dal mio GT-I9100
totalnoob34 said:
When it's not showing any sign of life, check the battery
Click to expand...
Click to collapse
Its checked... works fine Volts and Ampers are OK...
SkHowl said:
Its checked... works fine Volts and Ampers are OK...
Click to expand...
Click to collapse
Then you will probably have to replace the whole motherboard, or maybe JTAG yours. It's strange though, phones don't usually die.
Did you pull the battery while the phone was on?
Inviato dal mio GT-I9100
totalnoob34 said:
Then you will probably have to replace the whole motherboard, or maybe JTAG yours. It's strange though, phones don't usually die.
Did you pull the battery while the phone was on?
Click to expand...
Click to collapse
No. I dont pull the battery. I think i need to replace the motherboard to but my question was: thare is a way to test the motherboard with some tool like multitool (multicet) because i really want to know is the motherboard broke or not (BTW i know some way with changing with other HTC Desire HD phone but i dont have other...)
SkHowl said:
No. I dont pull the battery. I think i need to replace the motherboard to but my question was: thare is a way to test the motherboard with some tool like multitool (multicet) because i really want to know is the motherboard broke or not (BTW i know some way with changing with other HTC Desire HD phone but i dont have other...)
Click to expand...
Click to collapse
Testing the motherboard is theoretically possible, for example with a JTAG or Riffbox, but I assume you son't have one, otherwise you would be running a mobile repair shop and you would know more than most people here as far as mobile tech goes. There is no way of testing the phone otherwise, the only way of having an usable phone again is replacing the motherboard.
totalnoob34 said:
Testing the motherboard is theoretically possible, for example with a JTAG or Riffbox, but I assume you son't have one, otherwise you would be running a mobile repair shop and you would know more than most people here as far as mobile tech goes. There is no way of testing the phone otherwise, the only way of having an usable phone again is replacing the motherboard.
Click to expand...
Click to collapse
Im i student in Electrical university with electrical engineering (but for my luck with high voltage... not low voltage profile ) but in my university i think i can find JTAG or Riff box
SkHowl said:
Im i student in Electrical university with electrical engineering (but for my luck with high voltage... not low voltage profile ) but in my university i think i can find JTAG or Riff box
Click to expand...
Click to collapse
Nice, but then you will need to use them
Inviato dal mio GT-I9100
Well i will try it. My hopes are to repair the phone
Sent from my HTC Desire using XDA Premium 4 mobile app
Ok so I was on the way to the mall and I plugged my phone to charge in my cousins car and it was charging when I tried turning on the phone the buttons turned on but no screen I took the battery out and put it back in and it took 5 mins for the buttons to light up but still no screen. When I look at the screen in sunlight I can see that it's on but there's no back light. So I'm wondering if anyone knows how or why this would happen? I had to buy a new one because I need my phone on a daily basis. I have 14 days to return it so please help me out if anyone knows anyway to fix it. Please
Sent from my LG-E980 using Tapatalk
Request you to change the subject to no backlight or something like this. Generic help subjects don't receive comments from senior members. I don't know about this issue. I am sorry
Sent from my LG E988; click thanks if i helped you. it will be appreciated
Backlight Problem
clotveins said:
Request you to change the subject to no backlight or something like this. Generic help subjects don't receive comments from senior members. I don't know about this issue. I am sorry
Sent from my LG E988; click thanks if i helped you. it will be appreciated
Click to expand...
Click to collapse
My LG OPT G PRO E988 having backlight problem pls...provide any solution
hey i watched on youtube videos of lg g3 fading problems and screen display flickering, i worried because i wanna buy USED FROM PEOPLE G3, and i dont know its happend to me or no, maybe lucky phone without any isues?? on yours g3 same problems or dont you haved any problems on your G3, pls answer, i worried .
i looked this video.... here problem https://www.youtube.com/watch?v=xQHMFVesYeM
Hi, I had 2 G3 phones one is good after 3 Year, one had the problem, one not.
Does this answer help you?
If you have this issue maybe this thread can help you..
https://forum.xda-developers.com/lg-g3/general/g3-hardware-problems-solved-bsod-screen-t3597086/page5
As always everything you do is on your own risk.
Regards
3di
I bought a used one for cheap because it had screen fading problem. I knew I could fix it and now I have working G3! Basically you need to put pressure on the RAM chip because it lost some solder connections to the soc. I recommen using something thermally conductive.