Hello, I have problem with lcd on samsung galaxy s3... When I turn my lcd on, it just flashes. Touch screen and everything else is doing normal, but lcd act like it loses power immediately when is turn on. I haven't dropped it or anything before that happened. I already tried to remove battery and pressing the power button and tried if the connector is loosen, but everything seems normal.
https://youtu.be/J_R707i9WNc
Boot into download mode, if still the same then it's hardware.
First replace the battery, if still the same then dismantle the phone, check screen connector. After that it's time for a new screen/phone.
I can't get into the download mode, screen is blank after flash... Battery and connector are fine.
Related
Hello everybody!
I have an LCD issue with my phone. It seems that whenever the phone goes into sleep or deep sleep, if I push the power button to turn it on and unlock the screen, the LCD would not turn on. The digitizer does work and I am able to unlock, but the screen is black.
After this happens I can get into Recovery and Download modes without taking out the battery (just rebooting, using the power button), but the Phone mode would still stay black. To work around this I usually let it sit without the battery for 10-15 minutes and then it all comes back fine, until the next sleep
This does not seem to be a firmware issue, as it happens with stock and custom firmwares.
1. Has anybody tried to reflow their Vibrant board? I suspect that there are some bad soldering points on the board which cannot bare LCD startup currents. The LCD starts to work fine after the board is cooled down.
2. How can I turn off the Deep Sleep?
I figured that another non-invasive workaround at this point is to turn off deep sleep and keep the phone running at a higher Voltage. Which partially worked for me, I increased the Voltage for 100-400Mhz modes and that let me run the phone fine, I was able to turn the phone back on after it goes to sleep. However I was not able to prevent the phone from going into the Deep Sleep yet.
Thanks,
CJ
Hi everyone.
I dropped my phone today, and the screen broke.
The phone still seems to work properly, but the classic signs of a broken LCD are present: purple screen with many many lines and nothing legible.
I have ordered a replacement screen already, but I cannot get the phone to shut down and stay turned off.
Since the screen is broken internally, it does not respond to my touch.
I can hold down the power button for 15 seconds but that does a reset, and the phone automatically turns back on.
Is there anyway to keep the phone off other than by draining the battery completely?
I need to keep it powered down so that I can disassemble it safely.
Any ideas?
Thanks!
whatchamacallit said:
Hi everyone.
I dropped my phone today, and the screen broke.
The phone still seems to work properly, but the classic signs of a broken LCD are present: purple screen with many many lines and nothing legible.
I have ordered a replacement screen already, but I cannot get the phone to shut down and stay turned off.
Since the screen is broken internally, it does not respond to my touch.
I can hold down the power button for 15 seconds but that does a reset, and the phone automatically turns back on.
Is there anyway to keep the phone off other than by draining the battery completely?
I need to keep it powered down so that I can disassemble it safely.
Any ideas?
Thanks!
Click to expand...
Click to collapse
I don't know of any way, but as long as you are careful while disassembling you should be fine. You should be able to pry the screen out enough that you can disconnect the battery before disconnecting the screen. I doubt disconnecting the screen with the phone on would damage anything anyway. I believe people do this iPhone screens all the time to test them.
I just finished replacing the LCD/Digitizer assembly on my phone and when it is plugged with a battery it appears to be trying to boot but briefly displays a battery then shuts off. If the battery is out and it is plugged in it flashed the row of buttons once every 3 seconds.
The phone is stock and after the damage it appeared to function fine other than the lcd and digitizer. I could receive calls, texts and play sounds for email and so on.
I've reseated all the connections multiple times and made sure I didn't miss anything in the process. I have no idea what could be wrong. Any help is greatly appreciated.
EDIT:
I was just able to get it into download mode on the second try. On the first try it was flashing the buttons.
Hi All,
I was out a couple of days back and my battery died. No trouble, come back home and charge it up. Worth noting that in recent months battery performance has been poor with a full charge only lasting about 8hours or so. I put this down to a new ROM I flashed as well as natural deterioration (18 month old S3).
Plug into the wall, red charging LED comes on, but the battery splash screen does not. Tried another charger...same. Thinking nothing of it I go to bed and wake up next morning to be greeted by a green charging LED. However, still no battery splash screen. I try to boot...it doesn't. When I "power on" the bottom LED buttons do light up white and go off after a few seconds. When I press the hold button again, they also come on for a few seconds. If i press the hold button while the button LEDs are on, they go off.
This makes me think the screen has broken as both the hold button and the charging LED is doing what it would do...but without any screen activity. However, it was not dropped or put under any pressure in any way. I have opened it up and also made sure the ribbon is undamaged and connected properly. I have tried calling the phone to no avail. It also does not vibrate or make any noises. Perhaps the battery doesn't have enough juice? Its as if its on the battery splash screen, I just cant see it.
I should mention the screen is infact cracked from an incident about 6-8 months ago. It was however, fully functional. Presumably, this will unfortunately stop me from sending it in. It was also using a flashed rom (CM11) and a flashed kernal (Boeffla).
I used a multimeter and measured 3.96v across the battery so that's fine. I can't test the current as I cant break into the S3 circuit and I dont have a resistor on hand to put some load on it.
Next steps?
adamscybot said:
Hi All,
I was out a couple of days back and my battery died. No trouble, come back home and charge it up. Worth noting that in recent months battery performance has been poor with a full charge only lasting about 8hours or so. I put this down to a new ROM I flashed as well as natural deterioration (18 month old S3).
Plug into the wall, red charging LED comes on, but the battery splash screen does not. Tried another charger...same. Thinking nothing of it I go to bed and wake up next morning to be greeted by a green charging LED. However, still no battery splash screen. I try to boot...it doesn't. When I "power on" the bottom LED buttons do light up white and go off after a few seconds. When I press the hold button again, they also come on for a few seconds. If i press the hold button while the button LEDs are on, they go off.
This makes me think the screen has broken as both the hold button and the charging LED is doing what it would do...but without any screen activity. However, it was not dropped or put under any pressure in any way. I have opened it up and also made sure the ribbon is undamaged and connected properly. I have tried calling the phone to no avail. It also does not vibrate or make any noises. Perhaps the battery doesn't have enough juice? Its as if its on the battery splash screen, I just cant see it.
I should mention the screen is infact cracked from an incident about 6-8 months ago. It was however, fully functional. Presumably, this will unfortunately stop me from sending it in. It was also using a flashed rom (CM11) and a flashed kernal (Boeffla).
I used a multimeter and measured 3.96v across the battery so that's fine. I can't test the current as I cant break into the S3 circuit and I dont have a resistor on hand to put some load on it.
Next steps?
Click to expand...
Click to collapse
Try to put it in odin mode (power+vol down+home then press vol up to agree that you are now in odin mode). You should see it in odin.
If you dont see it, your battery or energy system of your phone is broken. Otherwise your screen is probably broken?.
_Beni_ said:
Try to put it in odin mode (power+vol down+home then press vol up to agree that you are now in odin mode). You should see it in odin.
If you dont see it, your battery or energy system of your phone is broken. Otherwise your screen is probably broken?.
Click to expand...
Click to collapse
I've managed to get it into download mode and too show up in odin. I can also get it to show the files in Windows if i wait after holding the power button.
This all indicates it is in fact booting up and the screen is broken...
...BUT...no sound...no vibration...and no calls received
Its as if its only half on. Beginning to suspect a catastophic motherboard failure. Is it possible the battery is at fault? Its as if a whole power rail providing for the phone receiver, loudspeaker, vibrator and screen has gone.
adamscybot said:
I've managed to get it into download mode and too show up in odin. I can also get it to show the files in Windows if i wait after holding the power button.
This all indicates it is in fact booting up and the screen is broken...
...BUT...no sound...no vibration...and no calls received
Its as if its only half on. Beginning to suspect a catastophic motherboard failure. Is it possible the battery is at fault? Its as if a whole power rail providing for the phone receiver, loudspeaker, vibrator and screen has gone.
Click to expand...
Click to collapse
Can you try this?
https://www.google.com/android/devicemanager
and let it ring?
have recently replaced the battery in my Huawei Nova CAN-L01, along with the power circuit (the USB dock etc.).
The replacement wasn’t really hard but I have a major problem now.
I have tried to boot the phone, and the screen is just black. The backlight works, the OS boots fine (PC detects it), it responds to pressing the power button (backlight turns on or off), BUT no image is displayed.
My first thought was that the LCD got damaged since replacing the battery requires a lot of flexing around it, but It was not - I have tested another working LCD and it is also black.
I have also cleaned the LCD connector with IPA.
I have tried disconnecting the battery and holding the power button for over 5 minutes - didn’t work.
I cannot hard reset the phone since the screen is black and I can’t see the hard reset menu.
I have also tried booting with the old battery and old power circuit, but the result is the same.
Any clues of what could I do?