screen retention problem? - Redmi Note 9S / Note 9 Pro (Indian Model) Question

I'm thinking of buying note 9 pro global (joyeuse), but I've been hearing it has some problems. I don't have problem with software bugs, but some people said it uses Tianma panel which has bleeding and image retention problem.
If it is a gardware bug, it'll cause problems. Can anyone guide.
Thank you

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Faheemarif252 said:
I'm thinking of buying note 9 pro global (joyeuse), but I've been hearing it has some problems. I don't have problem with software bugs, but some people said it uses Tianma panel which has bleeding and image retention problem.
If it is a gardware bug, it'll cause problems. Can anyone guide.
Thank you
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Click to collapse
yes its a serious hardware fault, tianma panels have burn in issues + there is a WIFI related hardware issue as well, I made the mistake and bought the phone thinking these won't affect me and now I have to put up with a phone which loses wifi everytime it goes to sleep. SKIP THIS PHONE IF YOU CAN.

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dork997 said:
yes its a serious hardware fault, tianma panels have burn in issues + there is a WIFI related hardware issue as well, I made the mistake and bought the phone thinking these won't affect me and now I have to put up with a phone which loses wifi everytime it goes to sleep. SKIP THIS PHONE IF YOU CAN.
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Click to collapse
Mine doesn't have that issue. Did you try test with a different router? I have no screen issues other than slight bleed from the hole punch which is barely noticeable unless you look from a side angle on white background. I love this phone and have no complaints.

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dork997 said:
yes its a serious hardware fault, tianma panels have burn in issues + there is a WIFI related hardware issue as well, I made the mistake and bought the phone thinking these won't affect me and now I have to put up with a phone which loses wifi everytime it goes to sleep. SKIP THIS PHONE IF YOU CAN.
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Click to collapse
What is a better alternative? My current phone is no longer usable and i have to buy a phone in this price segment.

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Trancemania said:
Mine doesn't have that issue. Did you try test with a different router? I have no screen issues other than slight bleed from the hole punch which is barely noticeable unless you look from a side angle. I love this phone and have no complaints.
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Do you have the tianma panel or the hauxing one?

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Faheemarif252 said:
Do you have the tianma panel or the hauxing one?
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Click to collapse
Where can I see that?
EDIT: Found it it's huaxing

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Mine is a huaxing too, and I have no problems with it.
Also my WiFi is working normally with my router, but have read many comments complaining about the WiFi bug, most of them seems to use a router from Fritz.

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Trancemania said:
Mine doesn't have that issue. Did you try test with a different router? I have no screen issues other than slight bleed from the hole punch which is barely noticeable unless you look from a side angle on white background. I love this phone and have no complaints.
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Click to collapse
I don't know which version you have but all Global note 9s and indian note 9 pros have the wifi issue, numerous threads @ Mi community and even on xda there is a thread with many pages. About the screen issue just google "Xiaomi note 9s screen burn in" you will see many videos about this.
Most people who are saying they don't have the problem may not be checking their router logs, because the issue is hard to notice on 11.0.8 and above firmwares, the phone disconnects from the wifi but reconnects automatically after a few seconds so the end user does not know whats going on ..... unless he checks the router logs or uses whatsapp web with this phone, whatsapp web will actually disconnect from the phone after its wifi 'disconnects' during standby...it may take 10 minutes or 40 or an hour but it happens its a well documented issue even the Mi community Moderator for 9S confirmed this as a "documented wide spread problem" but has not been able to give a confirmation if/when it will be resolved his last response mentioned waiting for MIUI12.

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dork997 said:
I don't know which version you have but all Global note 9s and indian note 9 pros have the wifi issue, numerous threads @ Mi community and even on xda there is a thread with many pages. About the screen issue just google "Xiaomi note 9s screen burn in" you will see many videos about this.
Most people who are saying they don't have the problem may not be checking their router logs, because the issue is hard to notice on 11.0.8 and above firmwares, the phone disconnects from the wifi but reconnects automatically after a few seconds so the end user does not know whats going on ..... unless he checks the router logs or uses whatsapp web with this phone, whatsapp web will actually disconnect from the phone after its wifi 'disconnects' during standby...it may take 10 minutes or 40 or an hour but it happens its a well documented issue even the Mi community Moderator for 9S confirmed this as a "documented wide spread problem" but has not been able to give a confirmation if/when it will be resolved his last response mentioned waiting for MIUI12.
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I have the EU version. Look I had similar issue with my previous Note 5 and Note 8 but it was fixed by not using that router. I plugged a cheap router in my main router as access point and never had the issue again. I'm 99% sure it's some routers that don't work well with Redmi phones. And as India had millions of people a lot of them will be using the same routers. That is why I asked if you tested on a different type of router so we can confirm

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Faheemarif252 said:
I'm thinking of buying note 9 pro global (joyeuse), but I've been hearing it has some problems. I don't have problem with software bugs, but some people said it uses Tianma panel which has bleeding and image retention problem.
If it is a gardware bug, it'll cause problems. Can anyone guide.
Thank you
Click to expand...
Click to collapse
is this affecting simple note 9 to?
---------- Post added at 02:50 PM ---------- Previous post was at 02:33 PM ----------
Trancemania said:
Where can I see that?
EDIT: Found it it's huaxing
Click to expand...
Click to collapse
and do u u have this screen persistance on your panel?

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FYI: Tested my joyeuse, manfucatured Aug 2020, with a Tianma display. Using a checkered pattern, full brightness, for up to 20 min. or so. No ghosting/image retnetion whatsoever.

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I bought a note 9s with tianma panel with no lightbleed at the edges. There is also no lightbleed at the selfie camera cutout but on a white background I notice a slight area of reduced brightness (not grey but a little bit not as white as the general panel color) at the bottom part of the cutout. It is very small and curves with the cutout shape and I also have to look from an angle to notice it.
If I'm to nitpick, if i put on a white background and set brightness really high, i can notice some areas of slightly less brightness at the left and right bottom extremes extending about 0.2mm from the curved part. These are so far from anything that no app has any content there so it doesn't bother me. I also have to look at it from an offset angle (about 100°). Who uses their phone looking at it from this extreme angle? Like i said, the display issue is nitpicking.
I can't say anything about wifi because I'm mostly on 4G. That's a worse issue than the screen but apparently it could also be eliminated by changing wifi routers.
I bought mine (6+128 GB) for $200 and compared to other phone brands, this is a lot of phone for $200 so I'd recommend it to anyone and everyone. This os my first Xiaomi phone and I'm already a fan.
Sent from my Redmi Note 9S using XDA Labs

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I use Redmi Note 9s 6/128 vatiant and it does have screen burn. Whenever i play cod for a couple hours some of the buttons still appear and will appear for a few hours. I also read alot of Manga and the edges of the screen would turn yellowish/orangey on gray shades. Still not fixed and been suffering for months already. It's less visible on white screen but very apparent on gray ones