Xiaomi MIJIA Laser Projector 4K version with 4K resolution launched. - Page 36 - AVS Forum | Home Theater Discussions And Reviews
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post #1051 of 1558 Old 07-05-2019, 07:01 PM
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Haven’t setup yet since I still have some painting to do but wondering if anyone with a screen has a recommendation for setup? Did you have better luck setting the screen first and then trying to get the picture to match, or did you project the picture and try to match the screen placement?

Are the the measurements in the manual good enough to use for placing the screen?


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post #1052 of 1558 Old 07-05-2019, 08:08 PM
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Dead Pixel

Quote:
Originally Posted by DamionR View Post
I had the same problems with my original 1080P version of the Xiaomi laser projector, eventually it got so many dead pixels that I couldn't bare to use it anymore. It lasted for about 9 months before it developed dead pixels, progressively acquiring more. I took a loss on the return to the vendor after literally taking 4 months of back & forth conversations.

After 15 months my projector also has a dead pixel near the middle of the screen. Attempted to max RGB as well as doing the same on the engineering menu (setting them to 1023). Unfortunately no results so I just ordered a new vava 4k. However for reference to others production week of my DLP is 1735, version ENFM1735000489.
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post #1053 of 1558 Old 07-06-2019, 01:56 AM
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Originally Posted by Robert Yoo View Post
Hi,

Yes i made sure to enable HDMI 2.0 on the input in am on from the projector settings. I am able to display 3820 x 2160 @ 60hz fine at 4:4:4 (limited) color settings. Are you connecting your projector to a PC running win10 + nvidia gpu? if so can you check that you are running 3820 x2160 @ 60Hz FULL RGB or 4:4:4 (limited)? If you are able to get FULL RGB, my question to you is which cable are you using? Your help (or anyone else reading this) is greatly appreciated!

Regards,

Rob
Hi Robert, I am having the same issue as well, tried with many different HDMI 2.0 cables with different lengths to no avail. My unit can also display 3820 x 2160 @ 60hz at 4:4:4 but not full RGB. I tried a laptop and a desktop with windows 7 and 10 and both show the same issue at 3820 x 2160 @ 60hz with full RGB. By the way i am using a Nvidia gtx 970, tried using different drivers also doesn't solve the problem. 3820 x 2160 @ 50hz with Full RGB works just fine though on my unit.
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post #1054 of 1558 Old 07-06-2019, 07:00 AM
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It is set that low. It has to be to fill as much real estate on the screen as possible.
What about shifting the top of the screen forward and the bottom back and up so the screen is tilted like this \ then use keystone correction to align the projector with the screen? You probably will get full use of the screen and you wont notice the tilted screen in the dark.

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post #1055 of 1558 Old 07-06-2019, 08:54 AM
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What about shifting the top of the screen forward and the bottom back and up so the screen is tilted like this \ then use keystone correction to align the projector with the screen? You probably will get full use of the screen and you wont notice the tilted screen in the dark.
I tried to do this I just couldn't get it right. The keystone with this projector isn't very good.
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post #1056 of 1558 Old 07-06-2019, 09:43 AM
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Quote:
Originally Posted by xoredkiller;58263844
Quote:
Originally Posted by Robert Yoo View Post
Hi,

Yes i made sure to enable HDMI 2.0 on the input in am on from the projector settings. I am able to display 3820 x 2160 @ 60hz fine at 4:4:4 (limited) color settings. Are you connecting your projector to a PC running win10 + nvidia gpu? if so can you check that you are running 3820 x2160 @ 60Hz FULL RGB or 4:4:4 (limited)? If you are able to get FULL RGB, my question to you is which cable are you using? Your help (or anyone else reading this) is greatly appreciated!

Regards,

Rob
Hi Robert, I am having the same issue as well, tried with many different HDMI 2.0 cables with different lengths to no avail. My unit can also display 3820 x 2160 @ 60hz at 4:4:4 but not full RGB. I tried a laptop and a desktop with windows 7 and 10 and both show the same issue at 3820 x 2160 @ 60hz with full RGB. By the way i am using a Nvidia gtx 970, tried using different drivers also doesn't solve the problem. 3820 x 2160 @ 50hz with Full RGB works just fine though on my unit.


Thanks for your response. After doing some further research it looks like it is something which is common when connecting a pc to tv’s, in this case the projector. The display will accept up to a specific resolution, in this case 3820 x 2160 @60hz @4:4:4/4:4:2/4:2:0......I’ve read people say that it’s a limitation of HDMI 2.0 but im pretty sure I have used monitors In the past using HDMI 2.0 without this issue....I just can’t confirm because lately I’ve been using 100+hz monitors which require DP. Anyways, unless someone knows of a way around this I think I’m happy with the picture quality after tweaking the settings abit. Also just an fyi I was able to increase my pc resolution to 4096 x 2160 @60hz @4:4:4 without issue but as soon as I set the colour output to RGB, I get the white flickering again so all signs are pointing that the projector is not capable of handling FULL RGB colour output at the any resolution above 1080p....
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post #1057 of 1558 Old 07-06-2019, 10:19 AM
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Quote:
Originally Posted by Robert Yoo View Post
Quote:
Originally Posted by xoredkiller;58263844
Quote:
Originally Posted by Robert Yoo View Post
Hi,

Yes i made sure to enable HDMI 2.0 on the input in am on from the projector settings. I am able to display 3820 x 2160 @ 60hz fine at 4:4:4 (limited) color settings. Are you connecting your projector to a PC running win10 + nvidia gpu? if so can you check that you are running 3820 x2160 @ 60Hz FULL RGB or 4:4:4 (limited)? If you are able to get FULL RGB, my question to you is which cable are you using? Your help (or anyone else reading this) is greatly appreciated!

Regards,

Rob
Hi Robert, I am having the same issue as well, tried with many different HDMI 2.0 cables with different lengths to no avail. My unit can also display 3820 x 2160 @ 60hz at 4:4:4 but not full RGB. I tried a laptop and a desktop with windows 7 and 10 and both show the same issue at 3820 x 2160 @ 60hz with full RGB. By the way i am using a Nvidia gtx 970, tried using different drivers also doesn't solve the problem. 3820 x 2160 @ 50hz with Full RGB works just fine though on my unit.


Thanks for your response. After doing some further research it looks like it is something which is common when connecting a pc to tv’s, in this case the projector. The display will accept up to a specific resolution, in this case 3820 x 2160 @60hz @4:4:4/4:4:2/4:2:0......I’ve read people say that it’s a limitation of HDMI 2.0 but im pretty sure I have used monitors In the past using HDMI 2.0 without this issue....I just can’t confirm because lately I’ve been using 100+hz monitors which require DP. Anyways, unless someone knows of a way around this I think I’m happy with the picture quality after tweaking the settings abit. Also just an fyi I was able to increase my pc resolution to 4096 x 2160 @60hz @4:4:4 without issue but as soon as I set the colour output to RGB, I get the white flickering again so all signs are pointing that the projector is not capable of handling FULL RGB colour output at the any resolution above 1080p...
Correction: pointing that the projector is not capable of handling FULL RGB colour output at the any resolution above 1080p @60hz...
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post #1058 of 1558 Old 07-06-2019, 10:43 AM
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Quote:
Originally Posted by Robert Yoo View Post
Thanks for your response. After doing some further research it looks like it is something which is common when connecting a pc to tv’s, in this case the projector. The display will accept up to a specific resolution, in this case 3820 x 2160 @60hz @4:4:4/4:4:2/4:2:0......I’ve read people say that it’s a limitation of HDMI 2.0 but im pretty sure I have used monitors In the past using HDMI 2.0 without this issue....I just can’t confirm because lately I’ve been using 100+hz monitors which require DP. Anyways, unless someone knows of a way around this I think I’m happy with the picture quality after tweaking the settings abit. Also just an fyi I was able to increase my pc resolution to 4096 x 2160 @60hz @4:4:4 without issue but as soon as I set the colour output to RGB, I get the white flickering again so all signs are pointing that the projector is not capable of handling FULL RGB colour output at the any resolution above 1080p....
I am able to get a full RGB output on 4k 50hz and currently using this configuration, maybe you can try that? I have also observed that setting to 4k 60hz 4:4:4, text are more blurry and harder to see compared to Full RGB.
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post #1059 of 1558 Old 07-06-2019, 11:34 AM
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Quote:
Originally Posted by Robert Yoo View Post
Thanks for your response. After doing some further research it looks like it is something which is common when connecting a pc to tv’️s, in this case the projector. The display will accept up to a specific resolution, in this case 3820 x 2160 @60hz @4:4:4/4:4:2/4:2:0......I’️ve read people say that it’️s a limitation of HDMI 2.0 but im pretty sure I have used monitors In the past using HDMI 2.0 without this issue....I just can’️t confirm because lately I’️ve been using 100+hz monitors which require DP. Anyways, unless someone knows of a way around this I think I’️m happy with the picture quality after tweaking the settings abit. Also just an fyi I was able to increase my pc resolution to 4096 x 2160 @60hz @4:4:4 without issue but as soon as I set the colour output to RGB, I get the white flickering again so all signs are pointing that the projector is not capable of handling FULL RGB colour output at the any resolution above 1080p....
I am able to get a full RGB output on 4k 50hz and currently using this configuration, maybe you can try that? I have also observed that setting to 4k 60hz 4:4:4, text are more blurry and harder to see compared to Full RGB.

Thank you for the suggestion, and you’re right text is blurry at [email protected]@4:4:4, the way I worked around that is win10 scaling.....I set it to 175% and it seems to make things much clearer....the only reason I prefer 60hz is because I actually do casual gaming and prefer the higher refresh rate in general.
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post #1060 of 1558 Old 07-08-2019, 01:06 AM
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Thought this would be helpful for some, but I compared my PF-1000u vs the Xiaomi Mijia

Also the patches are samples from screen manufacturers. I had been using my own home made screen for a long time and decided to try the ALR route. Let me know if you have any questions. The samples posted up on the screen (left to right) are the XY PET Crystal, Carl's ALR Fabric, and XY PET Grid. I'm still waiting on some other samples to come in and will post those later on.
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post #1061 of 1558 Old 07-08-2019, 08:29 AM
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just ordered mine on eBay with a 135" silver tickets screen from Amazon.

Anyone have any current PQ settings they're happy with ?
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post #1062 of 1558 Old 07-08-2019, 10:00 AM
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just ordered mine on eBay with a 135" silver tickets screen from Amazon.

Anyone have any current PQ settings they're happy with ?
Congrats! That is exactly my set up and honestly I am very happy with the out of box settings.
Hopefully you have some good 4k content to throw up there!
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post #1063 of 1558 Old 07-08-2019, 03:25 PM
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What is the best screen to pair with this projector? The Viewsonic, Silverticket, XY PET, SI? I am leaning toward the Viewsonic, but I'd like the best performing screen with as little artifacting as possible.

My Home Theater
Screen: DNP Supernova BLADE (08-85)
Projector: Espon 5040ub
Receiver: Yamaha RX-671
Speakers: DefTech 8060-ST
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post #1064 of 1558 Old 07-08-2019, 03:54 PM
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What is the best screen to pair with this projector? The Viewsonic, Silverticket, XY PET, SI? I am leaning toward the Viewsonic, but I'd like the best performing screen with as little artifacting as possible.
Still waiting on my last set of samples, but from what I've seen so far the XY PET Crystal is pretty nice. If you see the image I posted a little above, the PET Crystal comes out pretty damn nice. I'm still waiting on some samples to come in so will post those when they do.
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post #1065 of 1558 Old 07-08-2019, 06:15 PM
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Anyone know of a ALR screen maker that do custom sizes larger than 120’? I asked August from XY screens and the largest height they have available for PET crystal is 59’. I requested 127 x 69....
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post #1066 of 1558 Old 07-08-2019, 09:56 PM
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Anyone know of a ALR screen maker that do custom sizes larger than 120’? I asked August from XY screens and the largest height they have available for PET crystal is 59’. I requested 127 x 69....
Nope.. Unfortunately, I too have been looking for a 150" ALR PET Crystal, but didn't find any
I have tried 2-3 ALR PET Crystal screen manufacturing firms. No one makes more than 120" screens..
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post #1067 of 1558 Old 07-08-2019, 10:01 PM
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After 15 months my projector also has a dead pixel near the middle of the screen. Attempted to max RGB as well as doing the same on the engineering menu (setting them to 1023). Unfortunately no results so I just ordered a new vava 4k. However for reference to others production week of my DLP is 1735, version ENFM1735000489.
That's very concerning.. Especially for potentially buyers who are keeping a watch on this pj & just waiting to click on the buy button.
Can you post some pics if possible pls?
Wondering how many such cases are there where dead pixels have developed.. Anyone else facing this issue? Any way out of this?.. Other than changing the lamp (dlp chip)... Which we will have to do, post 25k hours of burn in anyway.
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post #1068 of 1558 Old 07-09-2019, 03:03 AM
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Anyone know of a ALR screen maker that do custom sizes larger than 120’? I asked August from XY screens and the largest height they have available for PET crystal is 59’. I requested 127 x 69....
i recently purchased a custom 145" (diag) 2.35:1 scope screen from "sams av-tech screen pro" through alibaba, it's scheduled to arrive this thursday - the screen fabric i chose was their "t prism" which is an ust alr lenticular screen fabric similar to pet crystal.... they were great to deal with and their prices were very fair, much less than xy (xy's quote for my custom screen was more than double sams' quote)... hopefully, once it arrives, i'll find that their screen quality matches their service and pricing!

anyway, i believe they make the "t prism" alr screens up to 145"-150" (diag) for 16:9, which works out to 71"-74" inches high.

http://www.samsav.com/smasscreenpro2.../12220212.html
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post #1069 of 1558 Old 07-09-2019, 03:19 AM
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Quote:
Originally Posted by luisdans View Post
After 15 months my projector also has a dead pixel near the middle of the screen. Attempted to max RGB as well as doing the same on the engineering menu (setting them to 1023). Unfortunately no results so I just ordered a new vava 4k. However for reference to others production week of my DLP is 1735, version ENFM1735000489.
i had a dell s718ql 4k laser ust that arrived with a cluster of dead pixels in the dead center of the screen, dell had me just send it back for a replacement... anyway, from what i've read, dead pixels don't seem to be uncommon with these ust laser projectors... anyway, some folks have had luck removing them:

https://forum.xda-developers.com/and...3#post77826453

dead/black/white pixels
One owner of the chinese version here (french) who had a dead pixel managed to fix it by increasing RGB custom settings above 1500 for some time (don't know how long). When reverting to previous values, the white pixel had disappeared. Didn't work out for another user, but it might be worth a try.
This might change in the future (in this case, please keep me informed), but trying to manually repair by changing the chip is a dead end. It's not the usual Texas Instrument DLP4710FQL, but the DLP4711FQL (source), which is not compatible(source) and can't be bought online.
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post #1070 of 1558 Old 07-09-2019, 05:57 AM
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I have the Xiaomi 4k UST MJJGTYDS01FM projector and have zero dead pixels, the image quality is great.
Of course I have only had it a short time and I am really hoping I do not get any dead pixels as I cannot afford another projector in a year.
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post #1071 of 1558 Old 07-09-2019, 07:30 AM
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Just got mine today from China. Paid two hundred bucks in customs duty. Ouch!

First thing I noticed was the whine (of the fan?) My XGIMI H1S is dead silent in comparison! The sound is most annoying.

I am gonna root it next and see if we can get the whole English menu thing going. But it does look lovely out of the box.
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post #1072 of 1558 Old 07-09-2019, 07:35 AM
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Quote:
Originally Posted by Robert Yoo View Post
HI...just got my projector today and hooked up to a pc with a Titan V gpu using HDMI 2.0. Purchased an HDMI 2.0 cable and wondering if anyone else having issues running at 3820 x2160 @ FULL RGB? Basically i get flickering lines going up and down my screen and i can fix it by going to nvidia control panel > resolution and change the color settings to YCbCr444 but the picture looks a bit blurry and washed out. Anyone else has the same issue and if so how did you fix it? Fiber HDMI cable?

Thanks in advance guys!
Titan V! I am Jelly, I am still rocking 4 Titan X cards (Maxwell).

Reciever: DENON AVR-X7200WA using 7.2.4 with two center speakers (one behind the screen and one below it).
Amplifier: Emotiva XPA-5 Gen1
Projector: Xiaomi UST Laser Projector 4k (2019 edition).
My current setup: https://imgur.com/gallery/RnRc98a
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post #1073 of 1558 Old 07-09-2019, 07:36 AM
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Quote:
Originally Posted by Robert Yoo View Post
Anyone know of a ALR screen maker that do custom sizes larger than 120’️? I asked August from XY screens and the largest height they have available for PET crystal is 59’️. I requested 127 x 69....
i recently purchased a custom 145" (diag) 2.35:1 scope screen from "sams av-tech screen pro" through alibaba, it's scheduled to arrive this thursday - the screen fabric i chose was their "t prism" which is an ust alr lenticular screen fabric similar to pet crystal.... they were great to deal with and their prices were very fair, much less than xy (xy's quote for my custom screen was more than double sams' quote)... hopefully, once it arrives, i'll find that their screen quality matches their service and pricing!

anyway, i believe they make the "t prism" alr screens up to 145"-150" (diag) for 16:9, which works out to 71"-74" inches high.

http://www.samsav.com/smasscreenpro2.../12220212.html
Thank you so much this is exactly what I’m looking for....thanks again!!
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post #1074 of 1558 Old 07-09-2019, 07:48 AM
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So here are my five cents.

This is my second Xiaomi UST projector and I loved both of them.

My main usage is gaming and movies and I have to say that this projector works just as good as my two LG OLED tv's when it comes to gaming and latency.
When people see XXX ms in latency and instantly call it unplayable don't know what they are talking about. If you want 1ms latency stick to your computer monitors and gsync setup.
No TV has anywhere near to a monitors latency.

As for movies, I am waiting for the weekend to watch my new UHD blurays but I have been binge watching Stranger things season 3 and I love how this projector runs.

The consoles I tested are:

PS4 pro
Xbox one X
Nintendo Switch

These ran without any issues.

My Apple 4k TV is what I use for my daily driver when it comes to streaming and I have not had any issues with it.

Hardware pending testing:

Samsung UHD player for both movies and 3D.


TLDR: I love this projector and I am very happy for buying both my Xiaomi (white) and now Black.

Reciever: DENON AVR-X7200WA using 7.2.4 with two center speakers (one behind the screen and one below it).
Amplifier: Emotiva XPA-5 Gen1
Projector: Xiaomi UST Laser Projector 4k (2019 edition).
My current setup: https://imgur.com/gallery/RnRc98a
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post #1075 of 1558 Old 07-09-2019, 08:10 AM
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Quote:
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Just got mine today from China. Paid two hundred bucks in customs duty. Ouch!

First thing I noticed was the whine (of the fan?) My XGIMI H1S is dead silent in comparison! The sound is most annoying.

I am gonna root it next and see if we can get the whole English menu thing going. But it does look lovely out of the box.
> if you're talking about the "whoosh" at startup and shutdown, i think that's pretty common with these 4k ust lasers, the $5k dell s717ql 4k ust that i had did exactly the same thing, but if you're talking about a loud fan during the course of operation, i don't have that, mine is surprisingly quiet.

> $200 in customs duty? how did you pay it, did the guy/company that delivered it to you ask for it, c.o.d.? i paid a total amount at checkout and that was it.

> you can go into the stock menu settings and change the language to english.

> also, without rooting, you can also get rid of pretty much all of the chinese bloatware, and replace the stock chinese gui with a familiar one such as the android tv launcher (leanbacklauncher) or atv launcher.

the only reason to root as far as i can tell is if you want to install google apps and services in order to use the google playstore, voice assistant, and a few other things.., but i've found that these things are pretty hit and miss after rooting, for example i couldn't get voice assistant to work, and youtube won't play in 4k hdr because the pj's processor doesn't support vp9.

in fact, shockingly and very disappointingly, this pj can't really stream anything well at 4k from within its gui envitronment, natively, using installed apps, which kind of makes you wonder why xiaomi even bothered with a gui instead of just offering a typical projector settings interface... anyway, after playing around with a lot of the gui possibilities (trying different launchers, changing the background, installing different apps, etc.), i really can't find any use for it so i'm sure i'll end up just launching into hdmi 1 at startup and never see the gui.

> almost forgot... using spocky12's tool from xda (found in his tutorial) you can access the projector's service menu which gives a lot of additional image settings, looks very interesting and promising, look forward to playing around with the settings when i finally set up my pj.
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post #1076 of 1558 Old 07-09-2019, 08:19 AM
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TLDR: I love this projector and I am very happy for buying both my Xiaomi (white) and now Black.
i have to say that when it comes to first impressions, the 4k xiaomi hits it out the park in terms of build quality and sleekness, it's a damn good looking pj that looks and feels expensive, ha ha! what i also very much appreciate is it's manageable size - as i mentioned before i owned the dell s718ql 4k ust which was an absolute monster, it weighed over 33 pounds vs the xiaomi's 15 pounds, and mounting it was no picnic given its weight and bulk.
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post #1077 of 1558 Old 07-09-2019, 08:21 AM
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i recently purchased a custom 145" (diag) 2.35:1 scope screen from "sams av-tech screen pro" through alibaba, it's scheduled to arrive this thursday - the screen fabric i chose was their "t prism" which is an ust alr lenticular screen fabric similar to pet crystal.... they were great to deal with and their prices were very fair, much less than xy (xy's quote for my custom screen was more than double sams' quote)... hopefully, once it arrives, i'll find that their screen quality matches their service and pricing!

anyway, i believe they make the "t prism" alr screens up to 145"-150" (diag) for 16:9, which works out to 71"-74" inches high.

http://www.samsav.com/smasscreenpro2.../12220212.html
Keen to see daytime & night time performance of this screen.. I am doubting it will be similar to PET Grid screen material (which is also a ust alr lenticular), and not PET Crystal.. The videos on youtube show a heaven & hell of difference between the two in daytime light.
Did you order a sample first & test it out on how it looks? Please do post pics/vids once you get your hands on it.
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post #1078 of 1558 Old 07-09-2019, 08:50 AM
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Originally Posted by Nihar P View Post
Keen to see daytime & night time performance of this screen.. I am doubting it will be similar to PET Grid screen material (which is also a ust alr lenticular), and not PET Crystal.. The videos on youtube show a heaven & hell of difference between the two in daytime light.
Did you order a sample first & test it out on how it looks? Please do post pics/vids once you get your hands on it.
pet grid isn't lenticular (horizontal sawtooth pattern) - and like black crystal, pet grid is a considerably less expensive alr screen (or as xy puts it, pet grid is an "entry level alr screen")... pet crystal and t-prism screen i purchased are both ust lenticular screens (horizontal sawtooth).
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post #1079 of 1558 Old 07-09-2019, 09:35 AM
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Originally Posted by aeneas01 View Post
pet grid isn't lenticular (horizontal sawtooth pattern) - and like black crystal, pet grid is a considerably less expensive alr screen (or as xy puts it, pet grid is an "entry level alr screen")... pet crystal and t-prism screen i purchased are both ust lenticular screens (horizontal sawtooth).
Ah.. Thanks for clarifying. Would you be able to post some pics comparing both the screens once you get your hands on them?
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post #1080 of 1558 Old 07-09-2019, 10:56 AM
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Originally Posted by aeneas01 View Post
pet grid isn't lenticular (horizontal sawtooth pattern) - and like black crystal, pet grid is a considerably less expensive alr screen (or as xy puts it, pet grid is an "entry level alr screen")... pet crystal and t-prism screen i purchased are both ust lenticular screens (horizontal sawtooth).
Ah.. Thanks for clarifying. Would you be able to post some pics comparing both the screens once you get your hands on them?
Got this from August from XY
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