Multi Touch Screen Problem identified in the Chinese Xiaomi Forum - Redmi K20 Pro / Xiaomi Mi 9T Pro Guides, News, & D

Good day people out there!
I`m in the position currently of trying to buy a new phone, and the K20 pro seemed like a really good option for its CP ratio. Being a long time Xiaomi user I knew there will be tons of issues with the first production run so I have been actively monitoring the Xiaomi CN forums.
Currently, there is a big controversy going on about a range of Multi-Touch Screen Problems when more than 1 or 2 fingers placed on the screen. Shaky screen, what they are calling it now, happens when you hold 1 finger down and swipe the other one around, the stationary finger`s input is often interrupted and moves. This kind of behaviour is most obvious in games such as PUBG when you are trying to move, shoot and adjust aim at the same time, which happens a lot in close quarter combats. Supposedly there has been a new small scale release of firmware 10.30.0 that aims at optimising (not resolving from the words the devs are using) this issue and people are reporting mixed results.
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Another interesting thing is that this shaky behaviour is vastly reduced if you take the case off the phone and have your palm touch the midframe directly when gaming, or when you put the phone on the charger, and if you put the phone on the table and test it that way it shakes badly. Seems like a static noise issue if you ask me, and some other 1+7 users are also experiencing a similar issue.
So, for those that have access of a K20 pro, would you be able to test this and see how widely spread it is? Also, if you are on EU Rom, please also do test and see if this is resolved in the EU release! If yall want me to keep updating interesting info I found over at the CN forum please do let me know!:laugh:
Cheers, and stay awesome!
edit: Info update
After some research around the issue, apparently this is not a K20 series specific issue. Galaxy s10, Mi9, IQOO, and Blackshark users are all experience similar issues, just as widespread as the K20, but is there for sure. The similarity here is that all of these phones have Samsung AMOLED, so.....

I haven't seen any reports of this from OnePlus 7 users, can you link me to that?

nice Information

It's not that bad
Chinese MIUI 10.3.11
With a plastic screen protector (waiting for a glass)

Related

Get or not?

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Hey guys, im thinking of getting a LG Optimus One(p500), is it worth the money? (170 euros over here), does it slow down, is the camera good, etc? or should i get something else?​
It's generally decent for the price, there's plenty of roms in the development section for it, the camera is USELESS in the dark though. everything else works perfectly though.
However, there's a few issue you have to take note of.Even though it's froyo aka Android 2.2, because of the hardware, it does not support Adobe Flash Player.And there is a bug in this phone and that is when you touch the screen when playing games or doing anything else, the frames will drop and the phone will lag.It's a touch screen bug I believe.Just hope that Android 2.3 will take care of this problem.Take note of all those things.
Its a great device for the price I bought it in Germany for 242€ on Amazon.
It does have some software issues.
On the Hardware side the device is pretty good.
The Screen is a LCD screen compared to the OLED of the i5700 it doesnt have any pixel problems.
The camera is more then enough for making pictures except in the dark I think even an LED Light wouldn't make so much differences. And who is making pictures late at night? Outside even and LED light wouldnt make a difference.
On new year I will try to make some pictures with it. ^_^
The device does have enough RAM and besides the software-issues its a great device.
I'm sure LG will fix this for their most successful android smartphone.
And we will get Gingerbread...
My first post in here... well...
im using this phone since 2nd December ... i bought it at 205euros [device only, unbranded etc etc...] with car charger + windshield stand.
I previously had an iPhone 3G and sold it because i got bored with that... so actually that's my 1st android device.
For the ammount of money i've spent ... the accesories i got along + a bluetooth stereo that i use for music, i have to say that it's the best phone i've seen!
I've been searching the market after selling my iphone for a new one with android [2.2froyo from the box!] with a price around 200euros and that's the only one i found!
This phone is a bargain and for me the only disadvantage is the Screen lag when being touched [software problem, may be fixed on gingerbread] and the fact that it doesnt have v7 processor so it doesnt support flash [no big deal but... :/]

Is it worth buying?

Hey everyone, was thinking of buying this phone (snapdragon version) from aliexpress, read the other thread but it didn't answer my questions. I would be upgrading from an i9300 samsung (yeah it's old as heck, but it still works kinda flawlessly (messed up the gsm/3g network antenna)). I understand that performance wise the difference will be night and day, but after looking at a few reviews online i'm starting to wounder about the camera quality. If i compare to the 13mpx camera on the mtk version the photos in average lighting and video in average lighting look worse than those same samples taken on the 8mpx i9300 ones. I take videos a few times a week and i usually take out my phone to shoot photos of some modeling projects (usually parts and combinations of then, less often girls), cars and other stuff i like and want a good amount of detail (at least as much as i can get from my S3).
Also how is the network reception? I'm usually at places where network reception is poor for me (again, f-ed up a bit with my phone).
=And a side idea=
Any chance you can fit the 4.1Ah li-ion from the redmi 3/ 3 pro? I have had a few times on some other phones where li-po batteries are in use get hot to an unpleasant degree while charging and never had those issues with li-ion's.
My answer is yes it is worth it, for the money you will not find much better. However it is still a budget phone and it has compromises, the camera is good but not the best, low light performance is grainy as you might expect.
However in good light it can capture very nice detail.
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I havent tested video yet but there are some nice video demos of this phone on youtube. It is capable of recording in 4k but the frame rate is a bit choppy.
Reception is fine for me, I cant comment how it will be for you if you usually experience poor signals, my area is usually very good.

Can anyone confirm whether or not these characteristics of my G5 are normal?

Hi, although my unit is not exactly a G5 (it's a G5 SE H845) I would like to know whether or not the following characteristics are normal/common:
1.
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The lowest pa_therm0 temperature I saw in CPU-Z at idle (no apps opened) was 74*C. In the screenshot, there were about 5 apps (LINE, Whatsapp, Instagram, gmail, browser) opened and running in the background so the pa_therm0 temperature raised that high.
2. There is an uneven gap between the chin (the battery module) and the main body on my G5 SE with the one near the chin lock being the larger one that I can even see light coming through it. The other side is actually pretty tight that I can barely see light getting through it.
Please confirm whether or not those characteristics are normal.
Thanks in advance
I also have the G5 SE H840, the one that its being sold in latín America, but i dont have any of those issues you are mentioning, even the GPS its working as It should, i traveled like 1000km without movil data causr i had no network, but GPS worked very well, maybe your unit its an unlucky one , go to your móviles provider and ask for a change or get a refund
marveloz said:
2. There is an uneven gap between the chin (the battery module) and the main body on my G5 SE with the one near the chin lock being the larger one that I can even see light coming through it. The other side is actually pretty tight that I can barely see light getting through it.
Click to expand...
Click to collapse
I can't say if this is normal or not, but my G5 also has this characteristic. The left side of the battery module sits slightly lower than the main component, making a noticeable bump. I've been wondering myself for quite some time if it was worth exchanging over.
Sorry guys I forgot to mention pa_therm0 which is a temperature parameter in CPU-Z application so I edited my first post.
Thank you anyway for confirming you earned my Thanks!

Weird mark on screen on brand new phone

Hello, I just got my S9+ (less than a week ago) and I discovered after 4 days of use, a very strange mark on the screen that has no depth.
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It's very noticeable when I try to clean the phone with a bit of water. The droplets pattern changes:
I haven't exposed the phone to any miss-use and I'm baffled by this, is hard to see when the screen is on but it's forever in my mind now.
Could this be the oleophobic coating or am I looking at something else?
Do you see the line when the display is turned on? Try to dial *#0*# and test the display. It seems like the oleophobic coating, because of the water, but I never seen something like that before.
arnes_king said:
Do you see the line when the display is turned on? Try to dial *#0*# and test the display. It seems like the oleophobic coating, because of the water, but I never seen something like that before.
Click to expand...
Click to collapse
It's very hard to notice when the screen is on in most conditions. I'm returning this phone and hopefully it will pass Amazon quality checks, wish me luck.
In all 10 years of having smartphones, I never had a phone with this kind of flaw.
Hello I am having the same reaction on my phone. Did you find out what it was?
Same issue here
Only visible with screen off in direct sunlight or water is on the phone
I returned the device with an attached letter to it where it stated what was the problem.
I got the return, no questions asked. I would recommend reaching Samsung or your retailer to get this fixed or another device. If asked, just explain that the scratch has no depth, so it couldn't have been your keys or something in your pocket, also stress your phone is new.
Similar issues were reported for the Galaxy note 8 and I found a YouTube video with an S9 and a similar problem.
If you don't return the device, I would expect the problem to get worse.

Xperia X Starts Burn-in

Hello guys. I bought my Xperia X on May 2017. 1 year and 4 months passed away. It started to burn-in. So I just want to ask:
Anyone gets the same issue? or Im the one?
How can I fix this?
Here is a burn-in (photo isnt mine but same issue)
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its ok dude my xperia x dual screen like u when the temperature rises dont worry
I fixed this issue I think but how long its goin I dont know. Here a video https://www.youtube.com/watch?v=kfNJi_LoAK4 , I put this video on my sd card and run the video for 4-5 minutes. And ghosts are gone.
Unfortunately, that seems a common issue with Xperia X. I bought mine in June 2017, the display didn't show any image retention, not even when hot. In May 2018 I noticed it started to show this issue when the phone was hot, so I sent it to warranty. They replaced the whole mid frame + screen (it seems they treat this as a single part) then sent the phone back to me. After the service, I got no image retention issues, not even when hot. Fast forward to today and I'm now experiencing this temporary image retention again when the phone is hot (but this time it's way less pronounced than before).
My warranty already expired, so I won't bother replacing the screen again since now I would need to pay for the repair and after experiencing exactly the same issue in two different displays I think it's safe to assume the problem would appear again sooner or later if I replaced the screen once more. Fortunately the issue isn't permanent and at least on my case the image retention is very faintly (you need to put brightness at maximum and display a solid gray image to really notice it), and you just need to let the phone cool down for some minutes to make the image retention go away...
Mine does it quite bad now, but it's old and tired I've had my x since release it is doing well for how it gets used.
I have same problem too.i recommend you to set white balance at another rate.
I add nightly mode to my phone and it fix.so i don't need any tools.

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