Hey there,
I have some issues with the MTCB. Someone had these before?
First problem which is already quite annoying is that pictures are kind of burned in and still show shadows on the other screen
Second problem which is even more bad is that the display flickers. This is more or less obvious in different scenes.
When looking closely it seems like there is a grid (coming and going in the same frequence like the music is playing?). The attached video shows it.
Especially with white background the flickering gets very bad.
Don't know if this could be related to the Malaysk Firmware I use. Or is is it a hardware issue?
Also contacted the support. Let's see what they say...
messiah said:
Hey there,
I have some issues with the MTCB. Someone had these before?
First problem which is already quite annoying is that pictures are kind of burned in and still show shadows on the other screen
Second problem which is even more bad is that the display flickers. This is more or less obvious in different scenes.
When looking closely it seems like there is a grid (coming and going in the same frequence like the music is playing?). The attached video shows it.
Especially with white background the flickering gets very bad.
Don't know if this could be related to the Malaysk Firmware I use. Or is is it a hardware issue?
Also contacted the support. Let's see what they say...
Click to expand...
Click to collapse
Sounds like a screen issue to me, have you checked the ribbon connector hasnt come slightly undone ?
Hi, thanks for answering.
Attached is the video I spoke about. I missed to upload it.
You mean to open the device and check the ribbon connector inside, right?
Regards
edit: the video
messiah said:
Hey there,
I have some issues with the MTCB. Someone had these before?
First problem which is already quite annoying is that pictures are kind of burned in and still show shadows on the other screen
Second problem which is even more bad is that the display flickers. This is more or less obvious in different scenes.
When looking closely it seems like there is a grid (coming and going in the same frequence like the music is playing?). The attached video shows it.
Especially with white background the flickering gets very bad.
Don't know if this could be related to the Malaysk Firmware I use. Or is is it a hardware issue?
Also contacted the support. Let's see what they say...
Click to expand...
Click to collapse
This is commom in these units.
It's worst when it's hot.
I kinda fixed mine opening it and adjusting some kind of screw near the screen. You turn it and screen gets darker, you need to find a point between too dark and flickering. But when I park my car at the sun, and it gets hot inside, screen get bright again, so flickering and persistent images.
And here is a video about it.
pczao said:
This is commom in these units.
It's worst when it's hot.
I kinda fixed mine opening it and adjusting some kind of screw near the screen. You turn it and screen gets darker, you need to find a point between too dark and flickering. But when I park my car at the sun, and it gets hot inside, screen get bright again, so flickering and persistent images.
Click to expand...
Click to collapse
Personally I wouldnt say "common" - I ve only hear about 3 people mention it in the last 3 years.
typos1 said:
Personally I wouldnt say "common" - I ve only hear about 3 people mention it in the last 3 years.
Click to expand...
Click to collapse
It's commom. That's why Joying even put a video online to show how to fix it.
I believe that when they produce the unit, it's now well tuned up, or it's cold in the factory and they don't realize, so when someone who lives in a hot weather area install it, the problem appears.
It's a bad hardware design, they use analog potentiometer, they should use some digital and automatic one to regulate screen frequency.
pczao said:
It's commom. That's why Joying even put a video online to show how to fix it.
I believe that when they produce the unit, it's now well tuned up, or it's cold in the factory and they don't realize, so when someone who lives in a hot weather area install it, the problem appears.
It's a bad hardware design, they use analog potentiometer, they should use some digital and automatic one to regulate screen frequency.
Click to expand...
Click to collapse
Well, Like I said, I ve not heard much about it in the 3 years I ve been following the threads on here, but I do remember Joyous having problems with their screens and 5.1.1 - they couldnt get 5.1.1 to work on their 4.4.4 RK3188 units unless the screen was changed !! Sounds like its more a problem with Joyous units.
I agree there's not many complaints about this problem here, that's why I believe that may be some "quality check" sloppiness. It's very simple to solve anyway.
But all units seems to use analog potentiometer, so, bad design. There's nothing to do with Joying only and the fact they changed screen to update to 5.1.1.
And most users in this forum don't live in hot weather areas. In my case, Brazil, is hot must time of the year, above 34 C degrees (93 F), in the shade.
pczao said:
I agree there's not many complaints about this problem here, that's why I believe that may be some "quality check" sloppiness. It's very simple to solve anyway.
But all units seems to use analog potentiometer, so, bad design. There's nothing to do with Joying only and the fact they changed screen to update to 5.1.1.
And most users in this forum don't live in hot weather areas. In my case, Brazil, is hot must time of the year, above 34 C degrees (93 F), in the shade.
Click to expand...
Click to collapse
Thanks for reminding me that its only 4 C degrees here in the UK
typos1 said:
Thanks for reminding me that its only 4 C degrees here in the UK
Click to expand...
Click to collapse
Don't make me jealous!!
UK weather is great. I've been there once, liked very much.
Some friends are going to travel there later this month. I'm unable to go because my daughter is too young.
pczao said:
Don't make me jealous!!
UK weather is great. I've been there once, liked very much.
Some friends are going to travel there later this month. I'm unable to go because my daughter is too young.
Click to expand...
Click to collapse
Youre envious of 4 deg C ?! I get 34 deg C is a bit hot, but 4 is a bit cold !
Half way between 4 and 34 @ 19 deg C would be perfect
typos1 said:
Youre envious of 4 deg C ?! I get 34 deg C is a bit hot, but 4 is a bit cold !
Half way between 4 and 34 @ 19 deg C would be perfect
Click to expand...
Click to collapse
Agreed!
pczao said:
Agreed!
Click to expand...
Click to collapse
Lol, meet you in St.Helena, thats about half way init?
typos1 said:
Lol, meet you in St.Helena, thats about half way init?
Click to expand...
Click to collapse
I looked at the map and St. Helena is a little to the south, a direct flight seems a better option.
But feel welcome if you want to come to Brazil someday.
It's a bit messy but it's a good country. I'm not going to take you to meet any favela, by the way. Don't know why tourists are so eager to go in one, it's very dangerous, and I don't think they represent Brazil that much, so many different beatiful places to go.
pczao said:
I looked at the map and St. Helena is a little to the south, a direct flight seems a better option.
But feel welcome if you want to come to Brazil someday.
It's a bit messy but it's a good country. I'm not going to take you to meet any favela, by the way. Don't know why tourists are so eager to go in one, it's very dangerous, and I don't think they represent Brazil that much, so many different beatiful places to go.
Click to expand...
Click to collapse
dont worry, slums were not the first thing on my mind when thinking about Brazil
pczao said:
And here is a video about it.
Click to expand...
Click to collapse
Hey there, thanks but the video is not working.
I did not open the unit yet to check if the screw will improve. But I will test soon when I find some time.
By the way it's around 0°C here. So not very warm
Attached is another video. The flickering of the right white picture is actually visible. It's not a flickering of the camera.
messiah said:
Hey there, thanks but the video is not working.
I did not open the unit yet to check if the screw will improve. But I will test soon when I find some time.
By the way it's around 0°C here. So not very warm
Attached is another video. The flickering of the right white picture is actually visible. It's not a flickering of the camera.
Click to expand...
Click to collapse
Here's the link of the video: https://m.youtube.com/watch?v=GsRriCgZzd4
Just open the unit and fix it, very easy.
Took some time until I tried the fix. But the screw fixed it.
Carjoy recommended a power filter, but since the screw fixed it i prefer this...
The screen is now slightly darker. But I like the crisp image and better saturation of the colors (and of course no flicker).
Thanks!
messiah said:
Took some time until I tried the fix. But the screw fixed it.
Carjoy recommended a power filter, but since the screw fixed it i prefer this...
The screen is now slightly darker. But I like the crisp image and better saturation of the colors (and of course no flicker).
Thanks!
Click to expand...
Click to collapse
Does the unit have to be powered on when tighten the screw?
Sent from my Pixel 2 using Tapatalk
Related
Has anyone noticed any burn-in problems yet? I've seen reports of the problem for some other watches (LG), but so far nothing specific here for the Huawei.
It's so far so good for me, but I've been extremely nervous about this issue. I avoid faces with things like thick tic marks or logos in ambient mode. I know about Wear's built-in "protection," but I don't have a lot of confidence in it. Am I being unreasonable?
improvius said:
Has anyone noticed any burn-in problems yet? I've seen reports of the problem for some other watches (LG), but so far nothing specific here for the Huawei.
It's so far so good for me, but I've been extremely nervous about this issue. I avoid faces with things like thick tic marks or logos in ambient mode. I know about Wear's built-in "protection," but I don't have a lot of confidence in it. Am I being unreasonable?
Click to expand...
Click to collapse
I had the GWR and didn't have any issues with that at all. That said I turn the screen off at night during charging so maybe that helps. I'll keep an eye on the Huawei, but I'm hopeful that it will be fine.
dunjamon said:
I had the GWR and didn't have any issues with that at all. That said I turn the screen off at night during charging so maybe that helps. I'll keep an eye on the Huawei, but I'm hopeful that it will be fine.
Click to expand...
Click to collapse
I had the GWR for almost a year too. Always used watchfaces that are 'always on' (so no dimmed mode without background) and always had the charging animation on by night. Never experienced any burn-in.
I just powered mine on for the first time last night. I played with it for a few hours, then put it in the charger for the night and this morning it has burn-in!! How could it happen so fast??
mszach said:
I just powered mine on for the first time last night. I played with it for a few hours, then put it in the charger for the night and this morning it has burn-in!! How could it happen so fast??
Click to expand...
Click to collapse
Whoa! What got burned in? The little charging icon?
improvius said:
Whoa! What got burned in? The little charging icon?
Click to expand...
Click to collapse
The outline of the watch face. If I change the watchface and swipe left, you can see the outline of the other face as the background instead of white.
mszach said:
The outline of the watch face. If I change the watchface and swipe left, you can see the outline of the other face as the background instead of white.
Click to expand...
Click to collapse
hell no, wtf!!
it is very bad, sorry for that, were you using this watchface long time ago? what is the watch face look like in ambient mode? maybe the watch got really hot, and screen on while charging. i started to worry about the screen quality of this watch.
Edit:
i have seen this is your first day, i think maybe a faulty screen
Yeah, I'm wondering if your watch just froze in full display mode overnight.
mszach said:
The outline of the watch face. If I change the watchface and swipe left, you can see the outline of the other face as the background instead of white.
Click to expand...
Click to collapse
That deserves an RMA and you deserve a new replacement watch.
I sometimes get lag on mine, im not sure if it's actual lag or whether im doing something wrong but as someone mentioned if the watch went full brightness and is charging then the heat might have done it?
I returned it yesterday to best buy. Lucky me though. . they had cyber Monday deals and it was on sale for $50 less! !
I noticed that when the minute hands on mine move (ie every minute) that the whole screen kind of does a refresh. I'm using a custom watch face called InstaWeather, and in the settings there's an option to help with screen burn. I wonder if this is it? So every minute, every pixel would have been off/on or on/off?
dieselboy said:
I noticed that when the minute hands on mine move (ie every minute) that the whole screen kind of does a refresh. I'm using a custom watch face called InstaWeather, and in the settings there's an option to help with screen burn. I wonder if this is it? So every minute, every pixel would have been off/on or on/off?
Click to expand...
Click to collapse
yes, this is an android wear burn in protection buy moving a few pixels in all directions, works very good if you don't have large objects in the ambient mode, and won't help much if you have.
improvius said:
Has anyone noticed any burn-in problems yet? I've seen reports of the problem for some other watches (LG), but so far nothing specific here for the Huawei.
It's so far so good for me, but I've been extremely nervous about this issue. I avoid faces with things like thick tic marks or logos in ambient mode. I know about Wear's built-in "protection," but I don't have a lot of confidence in it. Am I being unreasonable?
Click to expand...
Click to collapse
In my opinion, yes, you are being overly worried. First the technologies itself has improved and we see less burn-in even when we set screens on to test such a thing. Second, the ability to move(write) a watch face or screen is not some huge leap, in fact it's really super easy to add to an OS to simply move the screen pin outs when in any long display mode. Beyond all that, app makers, watch face builders, now have the old data and make sure they write to avoid any long same display visual mode.
Easy to add to an app, when write same display, write 2 pixels, change.
Then after all that we have face on mode and ambient mode, which in my daily use changes my watch face enough that I would never get burn in. Agree that I am a heavy user of the watch, I tend to have to change twice a day. Perhaps someone that used the watch much less would have more of a concern?
I have the same problem
http://cl.ly/183c0O2m0m2q/amoled_vypaleny.jpg
Huawei Watch - after four days of use.
dj.kure said:
I have the same problem
http://cl.ly/183c0O2m0m2q/amoled_vypaleny.jpg
Huawei Watch - after four days of use.
Click to expand...
Click to collapse
****. What kind of messed up face watch/app did u use?
rusty.gh said:
In my opinion, yes, you are being overly worried. First the technologies itself has improved and we see less burn-in even when we set screens on to test such a thing. Second, the ability to move(write) a watch face or screen is not some huge leap, in fact it's really super easy to add to an OS to simply move the screen pin outs when in any long display mode. Beyond all that, app makers, watch face builders, now have the old data and make sure they write to avoid any long same display visual mode.
Easy to add to an app, when write same display, write 2 pixels, change.
Then after all that we have face on mode and ambient mode, which in my daily use changes my watch face enough that I would never get burn in. Agree that I am a heavy user of the watch, I tend to have to change twice a day. Perhaps someone that used the watch much less would have more of a concern?
Click to expand...
Click to collapse
Wrong. You must not understand what screen burn in is. No new technology has come out that will stop screen burn in. The software that moves the pixels over only works if the object is 1 pixel wide other wise it doesn't work screen burn in will still happen. And they do not have it where the same pixels won't be used otherwise in ambient mode it would jump around not wiggle.
dj.kure said:
I have the same problem
http://cl.ly/183c0O2m0m2q/amoled_vypaleny.jpg
Huawei Watch - after four days of use.
Click to expand...
Click to collapse
Reset the watch. It may not be burn in. I saw a bug like this from using too high Def of an image on a watch face. It got stuck in the cache even after I changed watch faces. I reset the watch and haven't had any issues since
Lepa79 said:
****. What kind of messed up face watch/app did u use?
Click to expand...
Click to collapse
Default watchface "Explorer".
---------- Post added at 11:08 AM ---------- Previous post was at 11:06 AM ----------
ShrekOpher said:
Reset the watch. It may not be burn in. I saw a bug like this from using too high Def of an image on a watch face. It got stuck in the cache even after I changed watch faces. I reset the watch and haven't had any issues since
Click to expand...
Click to collapse
Do you mean "Factory reset"? I did it, but nothing has changed.
ac16313 said:
Wrong. You must not understand what screen burn in is. No new technology has come out that will stop screen burn in. The software that moves the pixels over only works if the object is 1 pixel wide other wise it doesn't work screen burn in will still happen. And they do not have it where the same pixels won't be used otherwise in ambient mode it would jump around not wiggle.
Click to expand...
Click to collapse
Fare enough, just my opinion, & you have yours. Too bad you had to start by saying wrong.
Samsung has made changes to light output and color to reduce burn in, and we all know there is some type of display movement now to also reduce burn in, so it's odd you claim there has been nothing.
Anywho, I don't get burn in so yea, maybe with your attitude if you do, you deserve it?
rusty.gh said:
Fare enough, just my opinion, & you have yours. Too bad you had to start by saying wrong.
Samsung has made changes to light output and color to reduce burn in, and we all know there is some type of display movement now to also reduce burn in, so it's odd you claim there has been nothing.
Anywho, I don't get burn in so yea, maybe with your attitude if you do, you deserve it?
Click to expand...
Click to collapse
I'm not going to start it by saying you're right, am I? Samsung didn't make changes to anything in light output the only thing that's changed is adaptive screen color which is meant to adapt the screen contrast to show what's on screen in the best possible colors. There is no new technology that will stop burn in. You must not have understood me. The image wiggle is a software attempt to stop screen burn in from happening but it won't stop it just slow it down. Screen burn in will continue to be a thing until the panels we use change technology. I didn't say that nothing has been made to prevent it.
And if you sense attitude in a straightforward response that's on you. I'll let karma deal with that comment. I personally don't get screen burn in and I've had a SAMOLED device since the Samsung Epic. I just understand how to prevent it. But just because I've never had it I won't tell people that they're overly concerned about screen burn in.
hello friends,
I am having weird issue from yesterday.
my phone was too hot while charging and i was gaming.
I felt that colors are shifted too much on upper part where device heat.
then i tested with screen tester app, all colors were looking fine, but when dark gray comes, there was warm shade on upper part and cool shade on lower part.
I thought this will recover after device cool down, but now 1 day passed, 90% screen recovered but 10% still remain different.
I am going to RMA this and did not expected this from oneplus, oneplus 7 still far better in display department..
.
you guys, please test this as I mentioned above and reply here.
RohanAJoshi said:
hello friends,
I am having weird issue from yesterday.
my phone was too hot while charging and i was gaming.
I felt that colors are shifted too much on upper part where device heat.
then i tested with screen tester app, all colors were looking fine, but when dark gray comes, there was warm shade on upper part and cool shade on lower part.
I thought this will recover after device cool down, but now 1 day passed, 90% screen recovered but 10% still remain different.
I am going to RMA this and did not expected this from oneplus, oneplus 7 still far better in display department..
.
you guys, please test this as I mentioned above and reply here.
Click to expand...
Click to collapse
tested 2 hours fortnite - epic settings with charger.
nothing happens
maybe cool down the 10% with some ice? but be carefull - maybe a "frostshock" recover the damaged displaypart.
if not, rma.
Yeah I have a little bit of that as well. It comes and goes on mine. It was much worse when I first got the phone. I was checking off the bat because I had the same (but much much worse) on the pixel 4.
Many MANY people have the same issue, enable DC Dimming in the OnePlus Laboratory to fix this
I decided to return my handset to retailer.
Great device, the smoothest i've ever used with huge potential for future development, but this panel is bit disappointing. I mean in normal light conditions it's so pretty you don't miss qhd at all. Once you step into dark room you can forget about dark theming.
RelicUser said:
Many MANY people have the same issue, enable DC Dimming in the OnePlus Laboratory to fix this
Click to expand...
Click to collapse
It does fix the issue but then the contrast sucks. I just decided to deal with it. Hopefully it's fixed in a future update because overall I love this phone.
I am afraid it's hw issue.
ChongoDroid said:
Yeah I have a little bit of that as well. It comes and goes on mine. It was much worse when I first got the phone. I was checking off the bat because I had the same (but much much worse) on the pixel 4.
Click to expand...
Click to collapse
RelicUser said:
Many MANY people have the same issue, enable DC Dimming in the OnePlus Laboratory to fix this
Click to expand...
Click to collapse
forever_lol said:
I decided to return my handset to retailer.
Great device, the smoothest i've ever used with huge potential for future development, but this panel is bit disappointing. I mean in normal light conditions it's so pretty you don't miss qhd at all. Once you step into dark room you can forget about dark theming.
Click to expand...
Click to collapse
lendawg said:
It does fix the issue but then the contrast sucks. I just decided to deal with it. Hopefully it's fixed in a future update because overall I love this phone.
Click to expand...
Click to collapse
forever_lol said:
I am afraid it's hw issue.
Click to expand...
Click to collapse
Does anyone of you try RMA ?
Maybe they have updated panels from oem if this issue is too widespread.
Had same experience with poco with touchpanel. 1st novatek touch panels were worse in touch response, then they replaced it with focaltek touch panels for newer batches.
Yeah maybe they should but mine is barely noticeable. If yours bugs you then return it for sure but mine is barely noticeable.
Hello everyone,
I got my device some time ago and wanted to highlight the things that rarely ever get mentioned by your average youtuber.
-) Yes, vibration motor noise is there.
But it feels really intentional, not like it is broken.
For me personally I don't mind it really, just wanted to share it since this is dicussed in this forum.
I don't have the "crackling" that has been mentioned, it feels more like when you set the alarm on an iPhone and rotate the hours/minutes wheel - satisfying.
-) Screen PWM'ing
The display is great, gets decently bright especially when viewing HDR content on YT.
Also the 120Hz is definitely a game changer, you can trust me on that.
What I however noticed coming from my F1 is the PWM.
Feels like they do 240-280Hz PWMing the brightness.
I feel like it is causing me headaches and sore eyes, but might just be the exhaustion after coming home from office work on Thursday's
Will see how it develops - my F1 has also PWM, but at around 4000Hz (!) which is definitely not noticeable.
Anyone of you have noticed the PWM? I might be an isolated case, even all high-end Samsungs's have 240Hz and no one complains ...
If you know a hack to enable DC dimming just shoot me a PM please
Hope I don't have to send it back because of this, would be really a shame.
-) Green tilt
Yes, I have noticed some green tilt at the upper half of the screen.
Only happens at really low brightnesses and with certain silver/grey'ish colors in dark mode with reading mode on.
But it is really minor, you really have to focus to make out a slight green shift.
That is no issue for me really, but wanted to highlight it because of the ongoing discussin.
Actually that was all.
The rest is great so far.
Extremely fast, premium build, nice AOD, battery is good so far, camera is more than enough for me and the sound quality is excellent.
If you want to me to test/check out something just let me know, as long as it doesn't involve ADB
Motor noise?
djuroue1 said:
Motor noise?
Click to expand...
Click to collapse
The vibration motor for the haptic feedback.
GeForce66 said:
The vibration motor for the haptic feedback.
Click to expand...
Click to collapse
Ah ok.I didnt hear that.
About Dc dimming:
I have read that they had problems with it, so it might not come to the stable version but it can be enabled in the developer version.
darkb7 said:
About Dc dimming:
I have read that they had problems with it, so it might not come to the stable version but it can be enabled in the developer version.
Click to expand...
Click to collapse
Any link you can share with me? Maybe there is a chance I can give it a try.
GeForce66 said:
Any link you can share with me? Maybe there is a chance I can give it a try.
Click to expand...
Click to collapse
It was stated about the K40 on Weibo by a Xiaomi official, but since it is the same phone as Poco F3 I guess the situation is no different.
Here is a link: https://en.xiaomitoday.it/redmi-k40-poco-f3-dc-dimming.html
Yeah so I have packed it up again and will send it back to Amazon.
Unfortunately the PWM does not go along with my eyes/brain.
But other than that, great device - can definitely recommend, just make sure you are not sensitive to PWM.
When does PWM kick in according to the brightness settings?
From what I have seen as soon as you are below 100%
PWM?
_j3roen said:
PWM?
Click to expand...
Click to collapse
This should explain very well: https://www.oled-info.com/pulse-width-modulation-pwm-oled-displays
Can you please help me.. I don't know if my eyes are sensitive to pwm or not as I've always used an ips and I don't have the option of returning the phone, I used to get a headache behind my eyes while using my old pc for a long time, so does it relate to it or did you have the same problem?
Well yes, it could be - or you just were in front of the screen too long in general.
For me only my eyes start to burn when i have work in front of the pc all day, but no pain behind the eyes. This only happens with PWM'd OLEDs it seems.
What monitor have you been using with your pc?
GeForce66 said:
Well yes, it could be - or you just were in front of the screen too long in general.
For me only my eyes start to burn when i have work in front of the pc all day, but no pain behind the eyes. This only happens with PWM'd OLEDs it seems.
What monitor have you been using with your pc?
Click to expand...
Click to collapse
samsung monitor b1930n, I used to get the pain after playing for long time. I then switched to a laptop (lenovo z50-70) and the frequency of the pain decreased a lot
I couldn't really find much information. If you have the chance just point a camera at the screen when set to medium/low brightness, if you see the flicker then your screen uses PWM.
To anyone wondering about PWM in the future, notebookcheck measured it at 490Hz. This should be fine for almost anyone.
My current phone Mi 9T has 240 and I did not even know it, so I'm good. Had me scared for a bit with the headaches and whatnot
This is a great phone and I am actually impressed by its display. It's so clear to the point that I enjoyed watching cricket matches on this phone. Great sounds as well, especially for the fact that it's not expensive.
Need assistance !
I'm planning to buy this phone since I'm done with my mi 10T .
Mi 10T having 1 issue which is the only reason i will let it go . The earpiece
has the ultrasonic technology which is annoying and unstable causing a lot of calling issues since there's no a proximity sensor . Even the WhatsApp voice notes having the same issues .
I have looked around for newer phone which i think poco F3 might be the one!
I have tried to look around if xiaomi still using that stupid technology init ! But no luck.
If ur facing proximity sensor issues please confirm since my birthday is coming on sept 18th and I will gify my self a new
Thanks
If you want to change because of the proximity sensor, give the F3 a wide berth. Whether the problem can ever be solved via software is written in the stars - and it is cloudy, very cloudy... I don't think Xiaomi will ever fix this issue.
Picked up a used PX30 with a funny issue that I think might be HW related, but just want a second opinion before I do anything.
It is like it displays white where a shade of black should be, see attached picture, is this HW?
Model: ICE/HU/IN9053BL
Thanks for reading
unubtanium said:
Picked up a used PX30 with a funny issue that I think might be HW related, but just want a second opinion before I do anything.
It is like it displays white where a shade of black should be, see attached picture, is this HW?
Model: ICE/HU/IN9053BL
Thanks for reading
Click to expand...
Click to collapse
Is it an MTCD/E device?
marchnz said:
Is it an MTCD/E device?
Click to expand...
Click to collapse
It is a MTCE_LM_V3.42_1
I would venture that it's software. The reason I say this is that the colors on the ruler for the reverse camera are correct. I believe there are display adjustments that you could try in the factory settings. perhaps. Or it could be as simple as maybe in the accessibility settings that it's set for high contrast.
Maybe a factory reset might be something to try first?? Also are the colors jacked up when the system reboots like for the Android splash screen?
jlbooth said:
I would venture that it's software. The reason I say this is that the colors on the ruler for the reverse camera are correct. I believe there are display adjustments that you could try in the factory settings. perhaps. Or it could be as simple as maybe in the accessibility settings that it's set for high contrast.
Maybe a factory reset might be something to try first?? Also are the colors jacked up when the system reboots like for the Android splash screen?
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Click to collapse
The unit had been reset when I got it, but can not hurt by trying again.
The boot splash also has the issue on the animated logo, and it moves with the animation.
Before I do another reset, I will try to changing options in the factory settings, think it is the Display LCD type option i need to try changing, it is my first android head unit, but been android user for long time so will try flicking options and if all goes wrong a reset it is
It's wild that the ruler colors (red yellow and green) on the reversing screen were correct but nothing else is. Wow. If it's happening on the Android boot logo, that's kind of before Android has even loaded so maybe it's not necessarily software. I was kind of hoping maybe if logo was correct then something was getting flipped after boot up.
The color and display settings in the factory settings, I would think would be applicable regardless of whether Android has booted or not since those settings typically change settings in the MCU or main board.
Sorry for putting out more maybe's than answers. Hope you can get it sorted and report back what the solution is.
jlbooth said:
It's wild that the ruler colors (red yellow and green) on the reversing screen were correct but nothing else is. Wow. If it's happening on the Android boot logo, that's kind of before Android has even loaded so maybe it's not necessarily software. I was kind of hoping maybe if logo was correct then something was getting flipped after boot up.
The color and display settings in the factory settings, I would think would be applicable regardless of whether Android has booted or not since those settings typically change settings in the MCU or main board.
Sorry for putting out more maybe's than answers. Hope you can get it sorted and report back what the solution is.
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Mate, nothing to be sorry about, very grateful that your reading and trying to help
I 100% agree with that it might be some setting that can change the MCU or MB, but still have a naging feeling it is HW, so after work today, I wil take the unit out and take it apart and see if i can "see" anything, maybe a loos connection or something.
I did look in the factory setting and it does not have the color settings, its android 9.. So maybe custom rom and if problem still there then take apart.. Hummm..
I will share with you that the TFT board used by Dasaita is one of the many weak points of these head units. That's the board that has ribbon cables between the main board and the display. I suppose it's not impossible that one of those ribbon cables could not be seated properly.
I got Dasaita to send me a replacement TFT board for one of the units that I installed in my truck. It got the display going again but unlike your issue the backlight wouldn't light up. I found the actual component on the TFT board that was smoked. There is a zener diode that is used to control the backlight voltage. It overheated as a result of having the screen brightness at 100%. Interesting that they set the brightness to 100% from the factory, imagine that...
Those ribbon cables are very cumbersome to get seated into their sockets and they didn't leave but very very little slack to work with.
I just find it odd that the colors for the ruler on the reversing screen are correct. The color settings I was referring to before should be found under the "other" category across the top in the factory settings. You might need to scroll down that list of settings to find them. Also the factory settings are not necessarily tied to the Android version. Those are tied to the MCU firmware version. If indeed your unit does not have these settings, it could be one of the differences between your PX30 and my PX6. It's possible these might be made available on your system using an alternate password instead of 126 to get into the settings, but I have no idea what that password could be.
jlbooth said:
I will share with you that the TFT board used by Dasaita is one of the many weak points of these head units. That's the board that has ribbon cables between the main board and the display. I suppose it's not impossible that one of those ribbon cables could not be seated properly.
I got Dasaita to send me a replacement TFT board for one of the units that I installed in my truck. It got the display going again but unlike your issue the backlight wouldn't light up. I found the actual component on the TFT board that was smoked. There is a zener diode that is used to control the backlight voltage. It overheated as a result of having the screen brightness at 100%. Interesting that they set the brightness to 100% from the factory, imagine that...
Those ribbon cables are very cumbersome to get seated into their sockets and they didn't leave but very very little slack to work with.
I just find it odd that the colors for the ruler on the reversing screen are correct. The color settings I was referring to before should be found under the "other" category across the top in the factory settings. You might need to scroll down that list of settings to find them. Also the factory settings are not necessarily tied to the Android version. Those are tied to the MCU firmware version. If indeed your unit does not have these settings, it could be one of the differences between your PX30 and my PX6. It's possible these might be made available on your system using an alternate password instead of 126 to get into the settings, but I have no idea what that password could be.
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Click to collapse
Hi Friend, were you able to solve your problem? I have the same problem with my PX-30 multimedia. I'm thinking about opening it and seeing if the cables are connected correctly. Did you need to change something? or can I change the factory settings in CAR?
unubtanium said:
Mate, nothing to be sorry about, very grateful that your reading and trying to help
I 100% agree with that it might be some setting that can change the MCU or MB, but still have a naging feeling it is HW, so after work today, I wil take the unit out and take it apart and see if i can "see" anything, maybe a loos connection or something.
I did look in the factory setting and it does not have the color settings, its android 9.. So maybe custom rom and if problem still there then take apart.. Hummm..
Click to expand...
Click to collapse
Friend, were you able to fix your problem?
Could you give some details of what was done?
I have the same problem here in my PX30 (6 months of use)
makamine said:
Friend, were you able to fix your problem?
Could you give some details of what was done?
I have the same problem here in my PX30 (6 months of use)
Click to expand...
Click to collapse
Hi mate, I have not been able to fix it. The only thing I "did" was to unlock the factory settings and looked around in there, but was unable to see anything that might help. Also I did take the unit a bit apart to check for loose cables but did not find any. My next step is to install a custom rom "just to see" if it is a software issue or not.
How did your problem come about? Did it just happen one day?
6 month of use? is that from new or second hand? Or was it just in the car you bought?
unubtanium said:
Hi mate, I have not been able to fix it. The only thing I "did" was to unlock the factory settings and looked around in there, but was unable to see anything that might help. Also I did take the unit a bit apart to check for loose cables but did not find any. My next step is to install a custom rom "just to see" if it is a software issue or not.
How did your problem come about? Did it just happen one day?
6 month of use? is that from new or second hand? Or was it just in the car you bought?
Click to expand...
Click to collapse
Thank you for the clarifications.
I bought new on aliexpress in March/2021 it worked fine until 3 weeks ago, suddenly for 2 days it was alternating the color "Normal x negative screen"..
Right from the start I suspected some HW problem, since in my neighborhood, there are many holes and the car shakes a lot.
Right now I'm talking to the seller requesting permission to disassemble the multimedia and see if there's anything loose.
I have a hunch that it might be something in FLAT or BGA since the car is in the sun and several times when I got into the car I saw that the screen was super hot (even off)
As soon as I move forward, I'll share it here with everyone.
*I'm sorry for my English.
makamine said:
Thank you for the clarifications.
I bought new on aliexpress in March/2021 it worked fine until 3 weeks ago, suddenly for 2 days it was alternating the color "Normal x negative screen"..
Right from the start I suspected some HW problem, since in my neighborhood, there are many holes and the car shakes a lot.
Right now I'm talking to the seller requesting permission to disassemble the multimedia and see if there's anything loose.
I have a hunch that it might be something in FLAT or BGA since the car is in the sun and several times when I got into the car I saw that the screen was super hot (even off)
As soon as I move forward, I'll share it here with everyone.
*I'm sorry for my English.
Click to expand...
Click to collapse
Thanks for the info and update mate, I hope you have luck with them giving you permission to open it and check.
I might do that with mine again as I did not take of the circuit boards, just took off cover and checked LCD cables.
Will also post updates if I do make a 2nd attempt and good luck with yours.
Your English is all all good mate, nothing to think about
makamine said:
Right now I'm talking to the seller requesting permission to disassemble the multimedia and see if there's anything loose.
Click to expand...
Click to collapse
If your unit is Dasaita, no need to ask them for permission. It is common practice for them to provide replacement parts for us customers to "fix" issues which most often requires opening the unit. The warranty on these units is for the most part worthless as it would cost more to ship the whole unit back to Dasaita than it's worth as they typically expect you to pay shipping cost both ways. Just saying.
The seller returned me and asked to do a firware update, I performed the procedure he instructed me to do, but it had no effect on the screen (I just noticed an improvement in the audio/equalization)
I'm waiting for the next steps, they asked some more day to evaluate with the manufacturer.
Hope that they can resolve the issue to your satisfaction. Please keep the community here updated.
Sorry for bothering guys, I dropped my Z fold 4 from waist height to the carpet I guess it landed on the hinge and afterwards I noticed this;
LINK OF THE VIDEO ON REDDIT
Sorry for the reddit link, and sorry for the inconvenience.
Can you guys eloberate? Also I can hear some "gear" noises when I am unfolding at exactly 20%. Am I being paranoid?
Welcome to XDA.
Looks/seems like hardware damage... maybe a loose or damage hinge cable.
blackhawk said:
Welcome to XDA.
Looks/seems like hardware damage... maybe a loose or damage hinge cable.
Click to expand...
Click to collapse
Can you also check if you have same issue?
razorego said:
Can you also check if you have same issue?
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Click to collapse
I don't have the phone. Is the anomaly only present in that mode? Run some more tests.
If the hinge is not operating smoothly and especially if out of alignment it should be repaired soon... to avoid collateral damage to the display.
blackhawk said:
I don't have the phone. Is the anomaly only present in that mode? Run some more tests.
If the hinge is not operating smoothly and especially if out of alignment it should be repaired soon... to avoid collateral damage to the display.
Click to expand...
Click to collapse
The only problem is this and it happens on that specific screen, doesn't happen on any other screen pixel test application, it unfolds 180 degrees with no alignment issues that I can see.
razorego said:
The only problem is this and it happens on that specific screen, doesn't happen on any other screen pixel test application
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Click to collapse
That's the test mode so it might be it detecting a hardware fault. There's no reason it should be glitching on its own if you're not providing any inputs. A Samsung Experience center at best buys can run additional diagnostic tests on it.
blackhawk said:
That's the test mode so it might be it detecting a hardware fault. There's no reason it should be glitching on its own if you're not providing any inputs. A Samsung Experience center at best buys can run additional diagnostic tests on it.
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Click to collapse
Sorry for that, there is an artifact when I change the screen color there happens a horizontal line for 1 second on top half of the screen. But why it doesn't happen on any other test software?
EDIT: I am the one pressing the colors btw
razorego said:
Sorry for that, there is an artifact when I change the screen color there happens a horizontal line for 1 second on top half of the screen. But why it doesn't happen on any other test software?
EDIT: I am the one pressing the colors btw
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Click to collapse
I wouldn't be concerned with that then. As long as everything else is operating normally.
Screen Test gives a better look at display performance.
You may need a newer version then this:
blackhawk said:
I wouldn't be concerned with that then. As long as everything else is operating normally.
Screen Test gives a better look at display performance.
You may need a newer version then this:
Click to expand...
Click to collapse
Tried this app and nothing wrong, were able to understand what I mean by artifact line ?
razorego said:
Tried this app and nothing wrong, were able to understand what I mean by artifact line ?
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Click to collapse
That is perfectly normal, happens on mine too. It's some sort of bug or glitch in the app?
TheWorldYT said:
That is perfectly normal, happens on mine too. It's some sort of bug or glitch in the app?
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Click to collapse
Maybe, I really don't know. What is perfectly normal btw? Video is quite stupid so it might be hard to understand but its on top half of the screen a horizontal line happens when I change the screen color to black.
razorego said:
Maybe, I really don't know. What is perfectly normal btw? Video is quite stupid so it might be hard to understand but its on top half of the screen a horizontal line happens when I change the screen color to black.
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Click to collapse
That horizontal line is perfectly normal.
TheWorldYT said:
That horizontal line is perfectly normal.
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Click to collapse
I really wonder if we are talking about the same thing that happens for 1-2 seconds and disappears. But thanks mate!
razorego said:
I really wonder if we are talking about the same thing that happens for 1-2 seconds and disappears. But thanks mate!
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Click to collapse
Strange... must be a Fold thing. Don't see that on my N10+ when I run device test. As long as it passes the tests it's just a harmless Fold anomaly.
I would keep a close eye on the hinge though. Probably should have it looked at.
Mine does this to its nothing to worry about it must be part of the vibration test