I'm trying to download a mobile credit card app and it requires the resolution be this. How can I change my screen resolution to 1024x768 on a Samsung Galaxy S3?

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    Hi and welcome! Which mobile credit card app are you trying to download? From which website? – unforgettableidSupportsMonica Sep 11 '15 at 7:49
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    Which Android version are you running? Is the device rooted? – Firelord Sep 11 '15 at 13:03
  • Ditto on Android version as per Firelord pointing out. You should always specify what Android version your are running! – moonbutt74 Sep 11 '15 at 14:23

You may need to be rooted. You will need to install terminal emulator. You may also need to install some type of script management tool.

in terminal run:

to display current window manager settings run

wm size && wm density

Output ,for my device, yours will vary,

Physical size: 800x1280
Physical density: 180


To set to required size , [landscape]

wm size 768x1024
stop && start


NOTE: You WILL need to repeat the process to set your screen back to normal so, keep note of your original screen size. This is why i suggest a script management tool.

To return screen to original size; [my device, landscape]

wm size 800x1280
stop && start

You may need to reset your lockscreen wallpaper, mine doesn't seem to restore to proper size when i perform these commands.

| improve this answer | |
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    Given that OP hasn't mentioned which Android device is installed would you mind mentioning am display-size as well? wm was introduced only in JB 4.3 and it doesn't need root access when used with adb shell but am does. But I get your point why you wrote "may need root access". – Firelord Sep 11 '15 at 14:00
  • @Firelord , i assume the version running is JB as the S3 released bothe ICS and JB. As I only own KK->LP devices wm is my option. If and when the user clarifies which Android version, then they will accept the given answer or request additional information. – moonbutt74 Sep 11 '15 at 14:09
  • @Firelord , isn't it a horror that devices are still running GB? xD – moonbutt74 Sep 11 '15 at 14:22

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