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
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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!
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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.
The first time I've allowed my battery to get very low since installing CM7 on my HTC Merge and I'm now having all sorts of problems.
Firstly my screen won't light up. It's just completely black. The phone is on and the 4 buttons at the bottom light up but that's all. The phone is still responding to my touch as I can load apps and hear noises if I happen to touch the correct parts of the screen. It's almost as if the brightness has been turned way down, but I'm unable to see the controls to try turning it up again. I have tried booting to recovery mode but that doesn't display either.
Secondly the battery won't charge. Since the battery is drained I can only get the phone on when it is plugged in, but the orange "charging" led at the top of the phone never lights up. It just casually flashes like it ordinarily would have done when it was running from the battery. I have two batteries and they're both doing this.
I can't be 100% sure that these problems are due to the installation of CM7 but I've never experienced it before so i'm guessing they're connected.
Does anybody have any suggestions on how I can get my phone working again.
It's also worth mentioning that it is also no longer recognised by my computer
Sounds like a hardware fault, if you have the same issues in recovery as you do in your os then its very unlikely its ROM/software related
I don't your device nor have I taken it apart so its only guesses I could give you on which component needs to be replaced, LCD or flex cable are best guesses
Sent from my Nexus 4 using Tapatalk 2
Want to update on this as I've just had another look at it after a while.
With the battery having completely drained, I connected the phone to charge via my PC and the orange charge light lit up and the phone went into recovery mode without any assistance from me. After about 2 seconds the screen went off again.
When the battery has charged sufficiently, I am once again able to turn the phone on and it boots up... but the screen remains blank.
If I discharge the battery and then plug it into my PC, I am able to repeat the appearance of the recovery screen, but it always vanishes before I am able to do anything.
The screen must be surely be functional or how would I get those 2 seconds of display ?
Does anybody have any ideas of what I can do to get the phone working again?
I acquired a new battery and after fitting it the phone immediately worked again. The battery was completely without charge but the phone charged it up without any problems. However, as soon as the power ran low the same thing happened; the screen has stopped working and the battery doesn't seem to charge anymore.
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.
Hello incredibly helpful internet people! NEW ROM NEW PROBLEMS!
So I love my experia z, but it has a problem. When it has become fully charged 87% charged, it wakes from sleep, turns on the screen. The screen then dims and goes black like it's going back to sleep only to instantly wake up again. This even happens if I press the power button to lock it. The processor seems to run hot during this time for hours at night while my phone is charging which can't be good, and I can't charge to 100%. In other news my phone turns on by itself when you turn it off. So my guess is that I have a buggered USB connection somewhere?
Any ideas what this could be? I had this on a SlimKat, and now on scrubber port.
Thanks!
Hello.
Try to change usb cable/ charger.
Are you even using stock one?
But before that I would recommend to check on your software, maybe some of the programs causing wake locks.
You can search for "wake locks", maybe you will something useful.
This problem started happening two weeks ago and it's quite annoying. Running Android 5.11 Archidroid with the latest Archikernel version on my phone.
The problem is that my Galaxy S3 seems to freeze when the screen turns off. If the screen is turned off for maybe half an hour or more, pressing the power button will not wake the device. In an attempt to figure out if it's a broken power button, I set the home and volume buttons in the settings menu as keys that will turn on the screen, but that doesn't work either. The only way to fix the issue is to hold the power button to restart the device and doing that every couple of hours gets really annoying. Trying to turn on the screen literally does nothing, as if the phone is turned off.
When the phone is not charging, the interval between the freezes seems to be much longer. The phone will work perfectly for a couple of hours without the above mentioned problem but when on a charger it quickly screws up.
Now, I don't believe my device turns off during this "process". I've turned on the LED for charging and whenever I'd get the screen freezing problem I'd unplug the charger and the LED wouldn't go away, it'd still light up as if the phone is connected to the charger, which it isn't.
Anyone have any idea on what the problem is? I've never experienced this before and it started happening all of a sudden.
How low is the kernel clockspeed running in sleep mode?. Should be at 200mhz at the very minimum!.
Beamed in by telepathy.
If this does not happen on a stock ROM, it would be a problem with the ROM and the phone.