Low Brightness after changing the LCD - Zuk Z1 Q&A, Help & Troubleshooting

Hello there,
After my phone fell down from my pocket, screen broke completely and display stopped working. I got the display replaced by a local vendor and to my surprise the phone is very dark. Though I increased my phone brightness it stayed the same not what it previously used to be.
How should I proceed from now
Please help me in this regard

Javed454 said:
Hello there,
After my phone fell down from my pocket, screen broke completely and display stopped working. I got the display replaced by a local vendor and to my surprise the phone is very dark. Though I increased my phone brightness it stayed the same not what it previously used to be.
How should I proceed from now
Please help me in this regard
Click to expand...
Click to collapse
You replaced it with the original one? Because it maybe caused by a low quality replacement.

Related

S5 Screen Flicker Problem.

So My S5 worked great for 2 months or so but then the screen started flickering at very low brightness. As time passed the flickers increased and now whenever the brightness goes below half, the screen shows yellow flickers. That's not even the biggest problem, when i lock my phone and then press the lock/home button to turn on the screen, it shows a flash on the screen and goes dark again. This takes around 15-20 tries everytime almost (sometimes even A LOT more) to turn back on.
There was no water or fall damage.
I've tried factory/hard resetting, disabling hardware acceleration, disabling google chrome (worked for some people on the internet) still not solved.
I don't have warranty, and i'm willing to pay for some repairs but can someone help me out here and tell me where exactly is the problem? Cause i really don't want to pay for a new LCD. It's kinda costly. Thank You
ApexPredator01 said:
So My S5
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Click to collapse
I have the exact same problem but only at the bottom of the screen...I am sure is not a software problem because I tried everything (from reinstaling soft with odin from4.4 to 5, with kies, to CM12/13). If you find which is the hardware please let me know.
Thank you. I also don't have warranty and i got this flicker from November.
oia12344321 said:
I have the exact same problem but only at the bottom of the screen...I am sure is not a software problem because I tried everything (from reinstaling soft with odin from4.4 to 5, with kies, to CM12/13). If you find which is the hardware please let me know.
Thank you. I also don't have warranty and i got this flicker from November.
Click to expand...
Click to collapse
I also have this problem. I did bring my S5 for repair under warranty (but have knox tripped) and they REFUSED to repair it,because they think the problem is caused by ME. I did go to a lawyer, and I am gonna sue them. Will update you if I have new info. I am sure it is NOT a Software problem caused by the user,I also tried changing OS,reinstalling Stock,nothing solved my problem.
any update dear as i have the same problem but for me it happened when there was low light means in darkness so when i un tick the auto brightness it will be okay no more flickering issue
Same here. Flickers, stays black. Tho I can fiddle around and it will pick up touches, and have gotten it to reboot.
It will work fine charging. Batt icon works. It only seems to be an issue while its running.
Happens on stock and cyanogen 14.
I have noticed it seems to happen more when cold.
Same problem here on cyanogen 13.0, tried factory reset to no avail. I'm about to try flashing another ROM, just need to figure ou what.
Just done wiping and reinstalling new ROM, bumped up to 7.1 and the problem is still the same.
- Screen has difficulty turning and flickers when the brightness setting is low.
I guess it must be a hardware issue.
My fix for the moment is to disable automatic brightness and never set the brightness too low, so as to avoid have trouble turning on the screen.
Same here. It's a typical problem.
Same...
Sent from my SM-A520F using Tapatalk
I have a feeling that the problem is caused by overheating when charging. I fell asleep and woke up with the phone underneath me, it was blazing hot. It has been doing what the rest of you describe since then.
I am not 100% sure, but I've heard that it's due to the low voltage (brightness) being applied to the screen which is causing the flickering. Unsure why it's only the bottom half (Also happens on mine).
A work around for this is to install a screen-dimmer such as Darker, set the brightness on your phone to be above the flickering amount, then use Darker (or whatever app you use) to lower the brightness down.
Because Darker (or whatever app you use), is a filter, it won't change the voltage, thus no flickering.
do any of you have the always on feature enabled on the screen?
This problem is soooooooo often. Internet full of it.
Is AMOLED designed only to work for 2 years???
Anyone any information about that?
try downgrade firmware back to Android 4.0
Edit: nevermind, this didn't work
Perhaps AMOLED life time is short.
I will buy a LCD display next.
Same here only below the screen. It happened last month
BarrettBear said:
I am not 100% sure, but I've heard that it's due to the low voltage (brightness) being applied to the screen which is causing the flickering. Unsure why it's only the bottom half (Also happens on mine).
A work around for this is to install a screen-dimmer such as Darker, set the brightness on your phone to be above the flickering amount, then use Darker (or whatever app you use) to lower the brightness down.
Because Darker (or whatever app you use), is a filter, it won't change the voltage, thus no flickering.
Click to expand...
Click to collapse
How can we up to low brightness voltage? Is this possible?
It happens only at low temperatures. When you make your phone warmer, the flickering at low brightness stops.
Has anyone tried to check if some kind of cleaning the flex connector helps? I'm thinking about buying LCD sticker and give it a try.
I have the exact same problem and its related to temperature, I never face this problem in the summer.
ApexPredator01 said:
This takes around 15-20 tries everytime almost (sometimes even A LOT more) to turn back on.
Click to expand...
Click to collapse
Maybe your power button is broken?

Black Screen But Phone Is Still Working??

Hey guys
Just bought my moto x play. And on the same day it screwed on me. So after i got the phone i updated to Marshmallow, And left it in my room to charge. On my way back I realized my phone was not turning on. I turned it off and turned it back on but nothing happened. I only felt the vibration of the phone and seeing the screen light up black pixels (no idea what the proper term is)?
I can still use the camera with the twist gesture and i can still hear the phone taking photos when i click the volume rocker. But the screen is black and i cannot ue touchscreen to take phtos. I also noticed that the LCD lights up black again if i lift my phone up. Just like moto display would do with notifications. I also hear notifications on my phone but nothing else. I have serached for a fix but nothing anyone else have this porblem?
Danny_Cai said:
Hey guys
Just bought my moto x play. And on the same day it screwed on me. So after i got the phone i updated to Marshmallow, And left it in my room to charge. On my way back I realized my phone was not turning on. I turned it off and turned it back on but nothing happened. I only felt the vibration of the phone and seeing the screen light up black pixels (no idea what the proper term is)?
I can still use the camera with the twist gesture and i can still hear the phone taking photos when i click the volume rocker. But the screen is black and i cannot ue touchscreen to take phtos. I also noticed that the LCD lights up black again if i lift my phone up. Just like moto display would do with notifications. I also hear notifications on my phone but nothing else. I have serached for a fix but nothing anyone else have this porblem?
Click to expand...
Click to collapse
Most likely it's a hardware issue.Are you able boot into bootloader mode with screen working?
boot into recovery and factory wipe it.
black screen solution, check this out. https://motorola-global-portal.custhelp.com/app/answers/prod_answer_detail/a_id/97329/p/30,6720,9050
effingbadluck said:
Most likely it's a hardware issue.Are you able boot into bootloader mode with screen working?
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Click to collapse
No I cant load anything. The screen turns of and on the same way moto display turns my screen on when i lift my phone up. But i can see the lcd is on but nothing is actually being displayed on my screen.
Danny_Cai said:
No I cant load anything. The screen turns of and on the same way moto display turns my screen on when i lift my phone up. But i can see the lcd is on but nothing is actually being displayed on my screen.
Click to expand...
Click to collapse
Most probably hardware issue. Get it checked in care center .
Sent from my XT1562 using Tapatalk
I faced similar issue with my previous droid maxx, phone was on but only the screen's backlight came up. It happened all of the sudden when I was watching youtube. I thought the LCD ribbon connection was loose so I disassembled the whole phone and put it back on but no success. I ended up leaving it on the desk and one day the screen woke up on its own. The battery was at 1%, not sure if that triggered anything that fixed the problem. Maybe you could leave the phone until it drains out the battery and see if it could work for you.
Another way is to get into fastboot or recovery and do a factory reset
Maybe the flex cable is loose or disconnected
Assuming you haven't unlocked the bootloader,ask for replacement.
effingbadluck said:
Assuming you haven't unlocked the bootloader,ask for replacement.
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Click to collapse
Yea I am. I have to wait until Monday for a reply
Hi Danny_Cai. I'm currently experiencing the same issue with my Moto Z play smartphone. So I wanted to ask, did you just replaced the phone in the store? And what was an actual cause of this problem?
Possible solution Motorola X-Play Back light Problem
Hi Danny,
I had a similar problem with my phone. Not under warranty so took the back cover off using a T3 star bit.
Radio Shack probably has it also.
Link:amazon.com/TORX-Driver-Phones-Small-Electronics/dp/B001BIEIA8(can't post active external links on xda yet)
Link:imageshack.com/a/img922/2433/ZC8f0f.jpg
At the bottom of my phone, there are two spring contacts. One was sitting loose and must have been causing some kind of problem. It fell out, and I did not reattach it. Haven't had a problem since.
Link:imageshack.com/a/img924/364/5cOdgc.jpg
It may be something as small as that. Not sure what it was for but haven't noticed any difference in the phone.
Hope you find your solution.
Craig
Guys i also have this issue, did u figured it out what exactly it is?

main screen doesn't turn on

Hello,
My wife dropped on floor her yotaphone 2 and now main screen remains always off and only back screen works.
In mirror mode I don't find a way to check if screen definitely broken. Can you suggest me a way to check if screen is gone?
Is there a way to try to reset everything from the back screen just to check if phone can be saved?
FandangoL said:
Hello,
My wife dropped on floor her yotaphone 2 and now main screen remains always off and only back screen works.
In mirror mode I don't find a way to check if screen definitely broken. Can you suggest me a way to check if screen is gone?
Is there a way to try to reset everything from the back screen just to check if phone can be saved?
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Click to collapse
I have exactly the same problem, have you found a solution yet?
mahfysh said:
I have exactly the same problem, have you found a solution yet?
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Click to collapse
Unfortunately not.
I checked with a local yotaphone service and the cost would be higher than actually the cost of a new yotephone.
I checked Yotaphone site and there the cost would be higher considering the cost of sending the phone there.
Actually my wife is using the EFD screen thanks to mirroring but I'm thinking to buy a new phone.
FandangoL said:
Unfortunately not.
I checked with a local yotaphone service and the cost would be higher than actually the cost of a new yotephone.
I checked Yotaphone site and there the cost would be higher considering the cost of sending the phone there.
Actually my wife is using the EFD screen thanks to mirroring but I'm thinking to buy a new phone.
Click to expand...
Click to collapse
right, the cost from their website is astronomical, I thought maybe there could be some light in the dark but I think I'll just sell the phone
Similar case here, but mine didn't fall: its front display was on for more than 2 hours, when upper side got very hot and switched off. Now, when I touch the on/off button, the display only briefly flashes in green. E-ink panel and phone both work correctly. I've tried to default reset and reflash firm without results.
Mine is a YD201 bought last october. Have you heard of other cases of front display low realibility?
Same
I do hear rattling inside so I’m gonna open up. I highly suspect something has disconnected in the phone itself. Though poor quality for breaking at one drop without any damage. (Other than the front panel won’t turn on)
Rattling could be due to the side buttons...
BTW I sent mine to repair to the seller -under warranty- and received a new one after 6 long months...

Suddenly purple smudges on the screen

Hello,
So my S7 edge got a replacement display due to being broken like 2 months ago. Today purple smudges started to appear, when I used the device for quite some time heavily and it got quite hot. They disappear when I change display mode or when brightness changes. But sometimes reappear. Is this a defective Display, should I get it replaced via warranty again?
Mine does the same thing, but it has never been repaired or suffered any kind of serious damage. It's not that annoying either.
Could it be some kind of factory defect?
When googling I found it clearly is a hardware display fault. As I had my display swapped by a third party mobile repair shop, they would be the ones to make accountable.
It only occurs at certain brightness settings, and not in all apps/states of display - mostly in those which are really bright like chrome browser without tab open, or dict.cc dictionary app.
I'll keep an eye on the issue and just demand warranty, as this display isn't even 2 months old now. They give 6 months of warranty on exchanged parts. So if it does not go away, I'll just get it replaced again.
It just occured today out of the blue, after flashing custom rom / flashing some stuff and constantly playing on the phone, and it became a bit hot.
It occurred exactly the same to me, after flashing a custom Rom. Now I can't remember which one, but it changed the screen's aspect ratio to simulate the S8's.
After that I flashed stock and the problem kept happening
But I don't think this can be caused by a custom rom... it's a hardware fault.
I hope so because I really wanna install a custom rom ;(
Google the issue - it happened a lot apparently and there is literally no connection to custom Roms - it's a defective Display. I did not have the issue anymore BTW.
I have to get back at this again. I recognized that I can Only see these smudges under certain conditions. I can not see them when I am inside. Only outside, and Only from specific angles - also dependant on screen brightness. When I cover the screen with my hand they disappear.
At first I thought it could also be some fault with the transparent protection skin I also applied one day before first noticing this purple screen problems. But the thing is - they move when scrolling, Only in a small portion of the screen but they go up and down.
The fact I can Only see them in daylight makes me wonder if it's got anything to do with the surrounding brightness sensor that does the automatic brightness and display mode for you.
I find it very strange that I can not provoke the issue indoors, also not if I set up brightness to max.

Redmi K20 Pro Screen Brightness and Ghost Touch malfunction after screen replacement

I recently replaced the screen on my K20 Pro and I noticed that there are a few malfunctions. Screen brightness suddenly goes max for a few seconds when using opening the phone from lock screen and usually when using fingerprint to unlock (I have my Auto-Brightness set to off). Ghost touches when tapping but none when swiping. I was wondering if this is a common malfunction after replacing the screen (calibration or something) or did the installation of the screen went wrong or is it because the LCD used to replace the original one was defective. Thanks for the insights.
i just replaced my screen four days ago and so far i got no problems of some sort..
so, i think it's probably the installation or the unit's fault. idk tho
I'm just annoyed by the sudden screen brightness max. To be honest I think the ghost touch thing is because of a defect LCD, but I think the brightness problem is from the system. It's like the phone does not recognize or remember the previously set brightness. I hope there's a solution for this. Do factory resetting the phone solve any brightness problems?
hello! did you managed to solve this problem? I have the same problem
if you removed foil and it still touch in random parts of screen,. then send it back. i had the same symptoms with a few screens that I repaired. just Chinese quality
yaro666 said:
if you removed foil and it still touch in random parts of screen,. then send it back. i had the same symptoms with a few screens that I repaired. just Chinese quality
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Click to collapse
i did the replacement with not 100% compatible display...because it was way cheaper than the display I needed...(from an oppo phone) i know it sounds weird but the display was 200 dollars( the 100% compatible from oppo) and i payed like 70 for this display that flickers the bringtness..but they told me a factory reset can solve it?
what do you think?
try, but I doubt it. looks like fauly/not compatible to me.
try flashing latest miui to make sure you did everything to get it to work, if that doesn't make it better just don't waste your time. if you have more technical data on both anoled and lcd with connections described (every pin) then you could make research a d bypass if needed. otherwise send it back
vincedrian said:
I recently replaced the screen on my K20 Pro and I noticed that there are a few malfunctions. Screen brightness suddenly goes max for a few seconds when using opening the phone from lock screen and usually when using fingerprint to unlock (I have my Auto-Brightness set to off). Ghost touches when tapping but none when swiping. I was wondering if this is a common malfunction after replacing the screen (calibration or something) or did the installation of the screen went wrong or is it because the LCD used to replace the original one was defective. Thanks for the insights.
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managed to solve? I have the same problem, besides sometimes the screen seems to lose sensitivity, I saw in some groups people recommend buying parts from the dragon-tt store....I'm thinking of taking a chance....

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