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HELP!!! phone heats up ever under mild to moderate usage. why ?

hello friends , i have a lg l90 (d410) that's barely one and a half month old . it's currently running on v10 d stock firmware and is rooted. I am finding it to heating under fairly mild to moderate usage.
Here's a brief overview of my usage patterns:
1. brightness at 30%
2. using single sim and data connection is on edge network throughout
3. have removed all google bloatware, currently have very few apps installed from the playstore & also greenify them post-usage
4. use a nillkin frosted shield hard case
Even after following all precautions, I can't help but find my phone's upper part & the area below the camera (at the back) to be heating up fairly fast, sayif i watch 4-6 mins of hd/full hd video on mx player at brightness "10" & sound "12" under H/W or S/W or say when I am using data-intensive apps & would suddenly have to attend a call in between, i would find the earpiece portion really warm. no matter how many apps i get rid of, thinking it would solve the issue, I always fail ! I use cooler master to determine apps that cause overheating & coolify to cool down but they don't seem to be of any help either!
Any idea about what could be causing this issue on my device? Should this be adjudged as a hardware fault & the unit be taken to the service center? I know this isn't fairly normal because ppl r hailing l90 for not warming up even during moderate gaming but mine even warms up while charging!
Any possible software-hack workarounds to get rid of this issue?

sujitmohanty2012 said:
hello friends , i have a lg l90 (d410) that's barely one and a half month old . it's currently running on v10 d stock firmware and is rooted. I am finding it to heating under fairly mild to moderate usage.
Here's a brief overview of my usage patterns:
1. brightness at 30%
2. using single sim and data connection is on edge network throughout
3. have removed all google bloatware, currently have very few apps installed from the playstore & also greenify them post-usage
4. use a nillkin frosted shield hard case
Even after following all precautions, I can't help but find my phone's upper part & the area below the camera (at the back) to be heating up fairly fast, sayif i watch 4-6 mins of hd/full hd video on mx player at brightness "10" & sound "12" under H/W or S/W or say when I am using data-intensive apps & would suddenly have to attend a call in between, i would find the earpiece portion really warm. no matter how many apps i get rid of, thinking it would solve the issue, I always fail ! I use cooler master to determine apps that cause overheating & coolify to cool down but they don't seem to be of any help either!
Any idea about what could be causing this issue on my device? Should this be adjudged as a hardware fault & the unit be taken to the service center? I know this isn't fairly normal because ppl r hailing l90 for not warming up even during moderate gaming.
Any possible software-hack workarounds to get rid of this issue?
Click to expand...
Click to collapse
Its probably hardware. I have an L90 whose screen flickers. A friend has L90 with poor speaker quality. Its not perfect.
Look at battery temperature using app. Under 37°C is good.
I wouldnt blame. Galaxy S4 goes upto 44°C

@fear2433 thanks for reaching out to me! ...I have seen my phone getting hot up to 47°c Celsius while playing angry birds go for some 2-3 mins. Watching a HD video for say, 5 mins takes the temperature to 41-43°c Celsius. It normally stays at 31-33.9°c. I really don't think this is normal!
Should I take it to the local service centre & request a PCB replacement?
Sent from my LG-D410 using XDA Free mobile app

sujitmohanty2012 said:
@fear2433 thanks for reaching out to me! ...I have seen my phone getting hot up to 47°c Celsius while playing angry birds go for some 2-3 mins. Watching a HD video for say, 5 mins takes the temperature to 41-43°c Celsius. It normally stays at 31-33.9°c. I really don't think this is normal!
Should I take it to the local service centre & request a PCB replacement?
Sent from my LG-D410 using XDA Free mobile app
Click to expand...
Click to collapse
Yes definetly.
But do not foget to uninstall custom recovery and Relock the bootloader, with KDZ method in the forum.
They will be happy to push the blame to you because you "rooted"

@fear2433- ya..sure!

fear2433 said:
Yes definetly.
But do not foget to uninstall custom recovery and Relock the bootloader, with KDZ method in the forum.
They will be happy to push the blame to you because you "rooted"
Click to expand...
Click to collapse
@fear2433 Could you please look here http://forum.xda-developers.com/lg-l90/help/sandisk-ultra-microsdhc-uhs-32gb-heats-t2948117 & tell me your point of view!

Note Taking Lag with s-pen?

I just got the Note9 512 8gb version. When taking notes I get an annoying lag or delay. Is this normal? I thought it would be super smoother. Also the delay time varies a bit too. Its like sometimes letters I write show up late and I'm already on the next letter. You have this happening? Especially when writing fast
I rebooted and cleared cache in storage maintenance. Thanks for feedback.
EDIT: I FOUND OUT THE ISSUE - GO TO PAGE 2

On the Note8, there was ZERO lag when writing. I write constantly on here and have never seen lag once. So I doubt that's normal on the Note9.

PsiPhiDan said:
On the Note8, there was ZERO lag when writing. I write constantly on here and have never seen lag once. So I doubt that's normal on the Note9.
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Click to collapse
Damn! I mean Good! I mean damn my phone has lag taking handwritten notes :/ I wonder if its another feature that is turned on or another app interfering. But I havent installed much....

I've taken loads of notes in the week or so that I've had the Note 9 and never noticed any sort of lag whatsoever.
Sent from my SM-N960F using Tapatalk

hackdrag0n said:
I've taken loads of notes in the week or so that I've had the Note 9 and never noticed any sort of lag whatsoever.
Sent from my SM-N960F using Tapatalk
Click to expand...
Click to collapse
I did online support with Samsung.... we factory reset and I believe it fixed the problem. I still have to do a full restore though... hope it doesn't come back!

SovRoxx said:
I did online support with Samsung.... we factory reset and I believe it fixed the problem. I still have to do a full restore though... hope it doesn't come back!
Click to expand...
Click to collapse
After my restore... the lag is back. ITs back :/ and I'm not sure if changing phones would help

It is not lag. It is called input latency. And the people claiming there is no latency on note 8 or 9 need to watch closer and see some demos of input latency. I skipped the Note 8 for this among other reasons. If I had to guess the input latency is about 15ms ±5ms. Pretty damn good. If you write fast you're going to notice it more.
Lag, latency, stuttering and frame drops are all completely different things. People are just using adjectives to describe their experience when things are more technical. It is kind of like many people don't understand lower case and upper case B's when talking about megabits and megabytes per second or giga-. Latency is a big deal for online gaming and steam link. That is why the hard core gamers will use Ethernet instead of wifi for gaming and the same for steam link. That 40-100ms or even more saved is a huge deal. It is obvious when you use steam link over WiFi and then go to Ethernet.
As far as the OP I don't know if you have a legitimate case of input latency or your expectations are too high. As I mentioned there are many videos to show input latency. I believe Microsoft has one of the better ones with a demonstration board that can dial in the input latency demonstrating over 100ms, ~50, 10 and 1ms. When under 10ms starts happening on every phone is when it really becomes game changing for not just flagship owners but people across the world that use these marvellous mobile devices. iOS used to much smoother for years than Android but input latency was still a thing. Now iOS and Android are competing head to head as far as latency, scrolling, frame drops and lag. It has become something Apple could not ignore anymore even though their SOC has been more powerful than Qualcomm and Samsung the last couple of years. All that power and it was dropping frames, scrolling janky, and input latency was noticeable despite their claims. Features have been put aside for iOS12 and focus has been put on performance. As you can see Samsung did this with Oreo and the Note9. The note 4 input latency was horrible but the phone was still ahead of it's time.

@rbiter said:
It is not lag. It is called input latency. And the people claiming there is no latency on note 8 or 9 need to watch closer and see some demos of input latency. I skipped the Note 8 for this among other reasons. If I had to guess the input latency is about 15ms ±5ms. Pretty damn good. If you write fast you're going to notice it more.
Lag, latency, stuttering and frame drops are all completely different things. People are just using adjectives to describe their experience when things are more technical. It is kind of like many people don't understand lower case and upper case B's when talking about megabits and megabytes per second or giga-. Latency is a big deal for online gaming and steam link. That is why the hard core gamers will use Ethernet instead of wifi for gaming and the same for steam link. That 40-100ms or even more saved is a huge deal. It is obvious when you use steam link over WiFi and then go to Ethernet.
As far as the OP I don't know if you have a legitimate case of input latency or your expectations are too high. As I mentioned there are many videos to show input latency. I believe Microsoft has one of the better ones with a demonstration board that can dial in the input latency demonstrating over 100ms, ~50, 10 and 1ms. When under 10ms starts happening on every phone is when it really becomes game changing for not just flagship owners but people across the world that use these marvellous mobile devices. iOS used to much smoother for years than Android but input latency was still a thing. Now iOS and Android are competing head to head as far as latency, scrolling, frame drops and lag. It has become something Apple could not ignore anymore even though their SOC has been more powerful than Qualcomm and Samsung the last couple of years. All that power and it was dropping frames, scrolling janky, and input latency was noticeable despite their claims. Features have been put aside for iOS12 and focus has been put on performance. As you can see Samsung did this with Oreo and the Note9. The note 4 input latency was horrible but the phone was still ahead of it's time.
Click to expand...
Click to collapse
After we did the factory reset it worked perfect, I could not replicate the delay I am complaining about.... if it was what you are saying, wouldn't I see it all the time? I could not recreate the issue at first, only till after I did a restore of my data did the problem come back. If I handwrite... sometimes its a one letter delay.. or even 2 letters will appear after I write or once in a while 4 letters!! so that is like a stutter.

Have you tried clearing the cache data in the storage maintenance menu? That might help

Note 9 factory software is lagging much than s9+.
Hope samsung will resolve lag issues soon

iceepyon said:
Have you tried clearing the cache data in the storage maintenance menu? That might help
Click to expand...
Click to collapse
Yea I tried that and also factory reset. Like I said... after reset I couldn't recreate the problem until I restored some of my backup. OR it may only seem to happen in certain note views... as far as I know there are 2 view screens ... it seems to have less 'lag' in creating new note right away. The edit screen with the default lines on the "paper" the view is a bit different and that is where I get the most lag it seems when I write.

So I just got my replacement. Before I did my restore I tried notes. I was SOOOOO relieved as note writing was perfect... no lag.. no delay.. I could write smooth.. awesome!!!! BUT . I did my restore and my problem is back! What the hell is going on? ^%$ . So now I will factory reset, AGAIN, and just build up my phone without a restore :/ and see if I can get around this problem. Will report back.

SovRoxx said:
So I just got my replacement. Before I did my restore I tried notes. I was SOOOOO relieved as note writing was perfect... no lag.. no delay.. I could write smooth.. awesome!!!! BUT . I did my restore and my problem is back! What the hell is going on? ^%$ . So now I will factory reset, AGAIN, and just build up my phone without a restore :/ and see if I can get around this problem. Will report back.
Click to expand...
Click to collapse
I found the problem! And reported it to Samsung. Can you recreate this issue on your phones?
So my backup settings had option for Accessibility > Vision > Magnification > Triple Tap Screen to magnify if this is turned on = I get wicked lag while writing notes. Its not that I am triple tapping getting a bigger size either. Just something with the gestures while writing is interfering with Accessibility Magnification settings. Turn the setting off and all is good.
Can anybody confirm?

Samsung 9 is not available in my country right now. Hope this will available soon, I am waiting :cyclops::cyclops::cyclops:

SovRoxx said:
Yea I tried that and also factory reset. Like I said... after reset I couldn't recreate the problem until I restored some of my backup. OR it may only seem to happen in certain note views... as far as I know there are 2 view screens ... it seems to have less 'lag' in creating new note right away. The edit screen with the default lines on the "paper" the view is a bit different and that is where I get the most lag it seems when I write.
Click to expand...
Click to collapse
The problem is that you are importing your notes made using the old S Note app onto the new Samsung Notes app. There appears to be a compatibility issue between the two. Which Samsung never addressed.

iceepyon said:
The problem is that you are importing your notes made using the old S Note app onto the new Samsung Notes app. There appears to be a compatibility issue between the two. Which Samsung never addressed.
Click to expand...
Click to collapse
No I fixed my particular problem ! I explained above. It has to do with the Accessibility > vision > tripple tap magnifier interferes with notes if turn on. Doesn't matter if its an old note app or new note being created. I thought something like you at first, but no my issue is this bug. And it is a bug. Turn on "Triple Tap" on your phone and create notes and report back to me how crappy it feels .
)

Just tried it. I can't seem to replicate your issue

iceepyon said:
Just tried it. I can't seem to replicate your issue
Click to expand...
Click to collapse
Note 9 you turned on triple tap magnifying? Your new notes are all smooth? Weird I have 2 notes in front of me today .. both factory reset and I can recreate the issue. Both are the 8 GB 512 version unlocked us phone.

SovRoxx said:
Note 9 you turned on triple tap magnifying? Your new notes are all smooth? Weird I have 2 notes in front of me today .. both factory reset and I can recreate the issue. Both are the 8 GB 512 version unlocked us phone.
Click to expand...
Click to collapse
Guess it must be a bug that affects the US variant. As I am using my company's Exynos variant and everything is super smooth.

I just recreated the issue on my new S4 I got from Korea. So that is 3 devices I tested on. Try turning on tripple tap mag. Then write a note writing fast.. example try. The word THIS lot. The IS will ghost and delay thus screwing up brain to write neater etc.

Hardware Super Boost and Force GPU rendering

Hello redmagic3 fellows,
I mainly play pubg mobile everyday and only turn on GameSpace and set it to Super Mode.
The in game graphic settings that I use is Smooth Extreme.
Whilst under Developer Options, there are this feature called Hardware Super Boost (with red font warning "This optimization is experimental only and could impact some functions) and Force GPU rendering.
Have any of you tried above features? If yes, does it really improve gaming experience and smoothness?
Thank you

Can't you just display frame rate on screen, apply the change and see if it goes up? If you are already hitting the fps limit for the game then try it with some benchmarks. (i don't have this device yet)

crusnikmachine said:
Can't you just display frame rate on screen, apply the change and see if it goes up? If you are already hitting the fps limit for the game then try it with some benchmarks. (i don't have this device yet)
Click to expand...
Click to collapse
I dont have the frame rate app installed on my phone becausse I read the review, it said that my phone has to be always connected with a laptop/pc, to me it is such a nuisance on gaming wise, too many cables hanging around, earphone cable is already enough for the mess.
Anyway, I will wait for those who have already tried before.

That feture was bisabled in new version, it won't bring any improvement for your phone. However, if you can find the V2.24 Chinese version, it will work

JerryYin said:
That feture was bisabled in new version, it won't bring any improvement for your phone. However, if you can find the V2.24 Chinese version, it will work
Click to expand...
Click to collapse
Hi Jerry, thanks for your reply, so it does give improvement on gaming wise on V2.10 ?

lius90 said:
I dont have the frame rate app installed on my phone becausse I read the review, it said that my phone has to be always connected with a laptop/pc, to me it is such a nuisance on gaming wise, too many cables hanging around, earphone cable is already enough for the mess.
Anyway, I will wait for those who have already tried before.
Click to expand...
Click to collapse
Wait what.. You don't need to be connected to anything to display refresh rate on screen. If there is no option in debug settings to show refresh rate on screen, then i would use GLTools or something to display it. If you are not rooted its probably not worth messing with.

lius90 said:
Hi Jerry, thanks for your reply, so it does give improvement on gaming wise on V2.10 ?
Click to expand...
Click to collapse
If you are using the global version ROM, IT WON'T HELP. If you are using Chinese ROM and the version is V2.24, it will help and improve the performance.

Question Current usability of the xiomi 11t pro

Hey guys i was thinking of getting the 11t pro,and for a few reasons i can only go for a mi phone at the moment ( i actually am getting quite a large discount from mi store in India). So my question have most of the issues like the overheating been ironed out or are there still issues with it and what other minor/major issues are there with the phone cuz for some reasons finding issues with this phone seems quite difficult on YouTube or else where. And how is the display and have there been any cases of black crush issue on the display. Thank you

Got the phone in January and have no issues whatsoever. The last update we got and I have no more heating issue. Screen has never given a problem either.

HellBringer81 said:
Got the phone in January and have no issues whatsoever. The last update we got and I have no more heating issue. Screen has never given a problem either.
Click to expand...
Click to collapse
I am glad to know that. Is there any other quirk to the phone? And I would also like to ask you is there an option to disable the 120watt charging and like limit it to like 60 or something?

Freegeeek said:
I am glad to know that. Is there any other quirk to the phone? And I would also like to ask you is there an option to disable the 120watt charging and like limit it to like 60 or something?
Click to expand...
Click to collapse
That option only exists in xiaomi.eu rom, and it's an option to either turn on or off, you can't adjust the voltage, with stock rom then no. If you want slower charge just get a slower charger imo.

sushuguru said:
That option only exists in xiaomi.eu rom, and it's an option to either turn on or off, you can't adjust the voltage, with stock rom then no. If you want slower charge just get a slower charger imo.
Click to expand...
Click to collapse
Ok i see. I believe the 11i had an option hence was curious

HellBringer81 said:
Got the phone in January and have no issues whatsoever. The last update we got and I have no more heating issue. Screen has never given a problem either.
Click to expand...
Click to collapse
Do you game on your phone much? I'm thinking of picking up an 11t pro, and wondered what temps were like for gaming when playing something heavy like genshin or similar. I was wondering if lowering the graphics/screen rate would prevent the phone from overheating....?

Geekfest84 said:
Do you game on your phone much? I'm thinking of picking up an 11t pro, and wondered what temps were like for gaming when playing something heavy like genshin or similar. I was wondering if lowering the graphics/screen rate would prevent the phone from overheating....?
Click to expand...
Click to collapse
Same all the reviews said there isn't overheating but there is heavy throttling. But those were from months ago hence i am not sure if that is still the case or they fixed the issues with a software update.

Amazing phone for the price but also annoying and bad. The screen is horrendous. Proximity sensor is the biggest let down of this phone. I'm constantly tapping the screen to wake the phone up. It's just not responsive to wake and also unusable while making a call. Every single app is pressed with your ear while making a call, then it becomes impossible to hang up or go back to phone dialer. This is a deal breaker for me, I would not recommend this phone. Running the latest global 13.0.4 MIUI.
At this moment I'm thinking of getting a 12 Pro but I'm afraid it might have the same issue due to virtual proximity sensor. Might need to go for a OnePlus 9 pro or 10 pro. But this phone needs to go cause the screen will drive you insane

Evo400 said:
Amazing phone for the price but also annoying and bad. The screen is horrendous. Proximity sensor is the biggest let down of this phone. I'm constantly tapping the screen to wake the phone up. It's just not responsive to wake and also unusable while making a call. Every single app is pressed with your ear while making a call, then it becomes impossible to hang up or go back to phone dialer. This is a deal breaker for me, I would not recommend this phone. Running the latest global 13.0.4 MIUI.
At this moment I'm thinking of getting a 12 Pro but I'm afraid it might have the same issue due to virtual proximity sensor. Might need to go for a OnePlus 9 pro or 10 pro. But this phone needs to go cause the screen will drive you insane
Click to expand...
Click to collapse
I have both models (EEA rom flashed in Global then EU rom) and never had this problem.

NOSS8 said:
I have both models (EEA rom flashed in Global then EU rom) and never had this problem.
Click to expand...
Click to collapse
I'm going to do a complete reset and try an EU ROM and see if there's any improvement. Cause apart from the screen issue I have this phone is a good phone, especially for the price and spec

Evo400 said:
I'm going to do a complete reset and try an EU ROM and see if there's any improvement. Cause apart from the screen issue I have this phone is a good phone, especially for the price and spec
Click to expand...
Click to collapse
You will have to unlock the bootloader and wait 1 week.

NOSS8 said:
You will have to unlock the bootloader and wait 1 week.
Click to expand...
Click to collapse
Yeah have this done. The phone is rooted already

Question can Spen option cause screen flickring?

Hello friends
i have S21 ultra exynos version, when i turn on Spen option in setting the top off screen is start to flickring (Small white horizontal lines difficult to see easily with the eye but it is visible when i focusing vision) its like vibrations when we bring a metal object closer to an old TV screen.
when i turn off the spen setting the screen its become normal
so any one can confirm that for me its normal that i see this or not? tnx in advance

I think it needs degaussed
Not normal for Notes. May be a firmware glitch, try at different refresh rates.
Try a hard reboot and clear the system cache.

blackhawk said:
I think it needs degaussed
Not normal for Notes. May be a firmware glitch, try at different refresh rates.
Try a hard reboot and clear the system cache.
Click to expand...
Click to collapse
hahaha tnk for your answer
i try what you writing :
1: i try 120 hrz and the screen become normal i try my spen and all is normal no flickring after 120 hz
2 : i try to back to 60 hz and the surprise is all is normal all thing is good
3 : i back to 120 hz and i try turn on and off (spen) in setting the screen is norml
4 : i try back to 60 hz and try to turn on and off (spen) the problem is back again but when i put the s pen in the screen the white line is disappear when I pick up the spen the problem is back again(just for 60 hz)
i dont know whats the probleme here my friend

znayver said:
hahaha tnk for your answer
i try what you writing :
1: i try 120 hrz and the screen become normal i try my spen and all is normal no flickring after 120 hz
2 : i try to back to 60 hz and the surprise is all is normal all thing is good
3 : i back to 120 hz and i try turn on and off (spen) in setting the screen is norml
4 : i try back to 60 hz and try to turn on and off (spen) the problem is back again but when i put the s pen in the screen the white line is disappear when I pick up the spen the problem is back again(just for 60 hz)
i dont know whats the probleme here my friend
Click to expand...
Click to collapse
CRT's were fun. Got shocked more than once.
One time when I was replacing a huge one even though I had discharged it several times to no spark. Capacity memory is scary. Fortunately I didn't drop it, that could've ended up badly.
Sounds like firmware. The variable refresh rate displays are extremely hard to calibrate. It's bad enough trying to color/gamma calibrate at fixed rate display through its brightness range. It's near impossible on variable refresh rate displays.
I would just ignore it unless it gets worse*. If under warranty maybe then otherwise the cure maybe worse than the disease. There maybe other work arounds or use the one you found or the easiest... just ignore it. If it's not a major issues don't go too nuts.
*It's possible the rom got corrupted (single event upset) or one of millions of the transistor or mosfet junctions failed in the mobo or display matrix. Every wonder what happens when one or two fail?

blackhawk said:
CRT's were fun. Got shocked more than once.
One time when I was replacing a huge one even though I had discharged it several times to no spark. Capacity memory is scary. Fortunately I didn't drop it, that could've ended up badly.
Sounds like firmware. The variable refresh rate displays are extremely hard to calibrate. It's bad enough trying to color/gamma calibrate at fixed rate display through its brightness range. It's near impossible on variable refresh rate displays.
I would just ignore it unless it gets worse*. If under warranty maybe then otherwise the cure maybe worse than the disease. There maybe other work arounds or use the one you found or the easiest... just ignore it. If it's not a major issues don't go too nuts.
*It's possible the rom got corrupted (single event upset) or one of millions of the transistor or mosfet junctions failed in the mobo or display matrix. Every wonder what happens when one or two faiso
Click to expand...
Click to collapse
blackhawk said:
CRT's were fun. Got shocked more than once.
One time when I was replacing a huge one even though I had discharged it several times to no spark. Capacity memory is scary. Fortunately I didn't drop it, that could've ended up badly.
Sounds like firmware. The variable refresh rate displays are extremely hard to calibrate. It's bad enough trying to color/gamma calibrate at fixed rate display through its brightness range. It's near impossible on variable refresh rate displays.
I would just ignore it unless it gets worse*. If under warranty maybe then otherwise the cure maybe worse than the disease. There maybe other work arounds or use the one you found or the easiest... just ignore it. If it's not a major issues don't go too nuts.
*It's possible the rom got corrupted (single event upset) or one of millions of the transistor or mosfet junctions failed in the mobo or display matrix. Every wonder what happens when one or two fail?
Click to expand...
Click to collapse
no my friend i dont have warranty now..but the phone is in a good condition 99% i just bought it last 2 weeks i do a factory reset when i bought it iam at the latest firmware android 12 october security patch.
when i try your solution ..when iam at 120 no probleme at all condition all is good and normal see my old post.
when i switch from 120 to 60 no probleme but if i turn on and off (spen) the probleme is here..i cant describe the screen hhahaha its like when we get close to an old tv and your phone is near to tv and you receive a call the screen start to flickring with horizontal lines..but its not easy to see it you should focus a little bit in the screen

znayver said:
no my friend i dont have warranty now..but the phone is in a good condition 99% i just bought it last 2 weeks i do a factory reset when i bought it iam at the latest firmware android 12 october security patch.
when i try your solution ..when iam at 120 no probleme at all condition all is good and normal see my old post.
when i switch from 120 to 60 no probleme but if i turn on and off (spen) the probleme is here..i cant describe the screen hhahaha its like when we get close to an old tv and your phone is near to tv and you receive a call the screen start to flickring with horizontal lines..but its not easy to see it you should focus a little bit in the screen
Click to expand...
Click to collapse
If you take a screen shot of it:
If it shows on the shot it's the firmware or mobo
If it doesn't show it's the display
Can you return it do a charge back on the card used to buy it?

blackhawk said:
If you take a screen shot of it:
If it shows on the shot it's the firmware or mobo
If it doesn't show it's the display
Can you return it do a charge back on the card used to buy it?
Click to expand...
Click to collapse
I take screenshot and screen recorder..its not shows...
yes i can change it but he dont have another s21U...iam just asked here to be sure its a display or fimware problem or just a probleme off 120hz and 60 hz and its normal to see it...if all people have this its not a good idea to change my S21U...bcz the problem not appear in 120hz and not appear at 60 hz in some conditions Just like I explained to you ..so i need a friend here to do a test in a same phone at white screen like notes application or messages and at this time i choose my decision to change it or not

znayver said:
I take screenshot and screen recorder..its not shows...
yes i can change it but he dont have another s21U...iam just asked here to be sure its a display or fimware problem or just a probleme off 120hz and 60 hz and its normal to see it...if all people have this its not a good idea to change my S21U...bcz the problem not appear in 120hz and not appear at 60 hz in some conditions Just like I explained to you ..so i need a friend here to do a test in a same phone at white screen like notes application or messages and at this time i choose my decision to change it or not
Click to expand...
Click to collapse
It may be the display. The active matrix is packed to the gills with mosfet junctions.
Try some Google searches; it will likely show up on Samsung members forum if it's an issue.
Take an image of it and do a Google image search if possible.

blackhawk said:
It may be the display. The active matrix is packed to the gills with mosfet junctions.
Try some Google searches; it will likely show up on Samsung members forum if it's an issue.
Take an image of it and do a Google image search if possible.
Click to expand...
Click to collapse
okeey my friend ill try and i post here any news..tnx a lot for your help