[MOD] Change Default Resolution to 4k - No root needed!

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Illux

Senior Member
Nov 6, 2010
148
74
Hey there,

Daki from www.androidkosmos.de published a short article that the resolution can be changed to 4k by default (so Kudos to you man). As it's in German and not exactly step-by-step, I felt like posting a short how-to.

Step 1: Turn on Developer Options.

- Settings -> About -> Click 5x on Build-Number

Step 2: Allow USB debugging

- Settings -> Developer Options -> USB Debugging [X]

Step 3: Open ADB, (always without the " ofc!)

- Type "adb devices", click on "allow request" on your phone

Step 4: Change Resolution and DPI

- Type "adb shell"
- Type "wm size 2160×3840"
- Type "wm density 807 (after a little tinkering, I found 721 to be the best DPI. Yea, really, 721)"

There is no information so far as to how battery life is affected!

Back to default:

Repeat steps 1-3

Step 4: Change Resolution and DPI (back to default)

- Type "adb shell"
- Type "wm size 1080×1920"
- Type "wm density 403"

Best

IlluX
 
Last edited:

sev7en

Senior Member
Jul 10, 2006
1,179
272
www.maccopoli.net
Xiaomi Mi MIX 4
Hey there,

Daki from www.androidkosmos.de published a short article that the resolution can be changed to 4k by default (so Kudos to you man). As it's in German and not exactly step-by-step, I felt like posting a short how-to.

Step 1: Turn on Developer Options.

- Settings -> About -> Click 5x on Build-Number

Step 2: Allow USB debugging

- Settings -> Developer Options -> USB Debugging [X]

Step 3: Open ADB, (always without the " ofc!)

- Type "adb devices", click on "allow request" on your phone

Step 4: Change Resolution and DPI

- Type "adb shell"
- Type "wm size 2160×3840"
- Type "wm density 807 (after a little tinkering, I found 721 to be the best DPI. Yea, really, 721)"

There is no information so far as to how battery life is affected!

Back to default:

Repeat steps 1-3

Step 4: Change Resolution and DPI (back to default)

- Type "adb shell"
- Type "wm size 1080×1920"
- Type "wm density 403"

Best

IlluX
Thanks, when I set the 4k res, I get the error message "bad resolution"... why?
 

DakiX

Senior Member
Mar 11, 2012
668
391
Haha look at that. Nice and thanks for share :)
I also published on talk.sonymobile.com forum.
 
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Phat-T

Senior Member
Apr 24, 2013
273
54
How's the battery for you guys? When I do this to my Z5P, the battery doesn't even last a few hours
 

tanipat

Senior Member
Nov 22, 2011
344
105
got the aame result did not see any different on battery anyway, i think it is just mock, the desity shown in cpu z is same. but resolution is making at 4k in cpu z. need to change back due to phone app force closing though
 

MiniDemonic

Senior Member
Oct 18, 2010
85
25
aren't the ui supposed to be 4k unlike the z5 p? or did they changed it?

They said during CES or something similar that you would be able to change the resolution in settings, so you could run 4K all the time if you wanted to. But that isn't the case on the phone right now.

Either the people from Sony that made the claim had their information wrong or Sony changed their mind afterwards. Either way, it sucks that you can't control your resolution in the settings.
 

tanipat

Senior Member
Nov 22, 2011
344
105
They said during CES or something similar that you would be able to change the resolution in settings, so you could run 4K all the time if you wanted to. But that isn't the case on the phone right now.

Either the people from Sony that made the claim had their information wrong or Sony changed their mind afterwards. Either way, it sucks that you can't control your resolution in the settings.

yes i do not know they give us independently, like s8 did. easily for them to control like that actually.
 

Trehjulingsleffe

Senior Member
Jun 11, 2013
124
37
Has someone used this for a while and can tell us about eventually battery effects of this? Does the phone app force closes etc?
 

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  • 19
    Hey there,

    Daki from www.androidkosmos.de published a short article that the resolution can be changed to 4k by default (so Kudos to you man). As it's in German and not exactly step-by-step, I felt like posting a short how-to.

    Step 1: Turn on Developer Options.

    - Settings -> About -> Click 5x on Build-Number

    Step 2: Allow USB debugging

    - Settings -> Developer Options -> USB Debugging [X]

    Step 3: Open ADB, (always without the " ofc!)

    - Type "adb devices", click on "allow request" on your phone

    Step 4: Change Resolution and DPI

    - Type "adb shell"
    - Type "wm size 2160×3840"
    - Type "wm density 807 (after a little tinkering, I found 721 to be the best DPI. Yea, really, 721)"

    There is no information so far as to how battery life is affected!

    Back to default:

    Repeat steps 1-3

    Step 4: Change Resolution and DPI (back to default)

    - Type "adb shell"
    - Type "wm size 1080×1920"
    - Type "wm density 403"

    Best

    IlluX
    10
    Further to this, if you're a weirdo like me and want everything reset rather than a set value due to your own personal OCD, you can use "wm size reset && wm density reset" :good::fingers-crossed::silly:
    7
    Possible solution

    I have been experimenting with combinations of resolution/dpi, try 1890x3360 @ 720 dpi - phone app is stable, lock screen is slower on startup but fine on subsequent screen lock/un-locks (I assume the phone's software is not optimised for this resolution)

    It seems that whatever you override the density setting to be using the adb when you go into the phone's Settings>Display>Display Size the built in range is from 408 to 720 max in increments of 80* even though it allows a custom value to be set. I think 720 may be some kind of limit that phone app is bugging out on.

    1890x3360 is chosen as it is in 16:9 ratio and for a 5.46" screen comes in at 706 dpi which is just below the 720 dpi limit.

    *The built-in values are:

    408** - Small
    480 - Default
    560 - Large
    640 - Larger
    720 - Largest

    As previously posted by another contributor I also found that UHD 1440x 2560 @640 also works well

    ** not sure why 408 is chosen for 'Small' but Full HD should be 403 dpi for 5.46"
    7
    You can do the same also on your Z1, Z2, Z3, Z4 Tablet, Z5, Z5 Compact ..... and on your crapold device, because this is not changing the display resolution :)

    Seriously guys..... this is changing the resolution of the VIRTUAL display (not the physical one), so like this you are getting 4k emulation on 1080p physical resolution.
    To change the physical display resolution you need to do "quite a few more steps", which cannot be done in a simple way like this (and surely not without root).

    Moreover, even if -- yes, there is a way -- it's not doable on stock ROMs, as it misses the required implementation.
    I am almost done here so, on Open Devices, you will be able to get real [email protected] whenever you want.


    Cheers!
    -- AngeloGioacchino Del Regno
    7
    finally find the way to work fully for 3rd party dialer, here is my step

    1. change to max resolution and dpi according to OP.
    2. install this dialer,i do not know for other one but this is i pick up because apart from default one i love using Google Pixel dialer so i use patch one just download and install normally.
    https://drive.google.com/open?id=0B-YrlXZxM0jhSHM2NURhNE1XZGs
    3. Change default apps for phone to the one we install (see photos)
    4. See photos for it all works, good thing in my opinion is you do not have to start calling using the one you just install. you just use the stock one as normal it will link to use the one we install automatically. in the meantime before anyone know how to work out for stock dialer (which i prefer more anyway)

    Happy using, hit thanks for me if it works for you
    http://imgur.com/a/42zHL