Wednesday, May 24, 2017

How to check the Android SIM count

getprop ro.multisim.simslotcount

or

SystemProperties.getInt("ro.multisim.simslotcount", 1) > 1

How to detect Dual SIM using Android shell ?


getprop persist.radio.multisim.config returns "dsds" or "dsda"   on multi sim Samsung devices

source: https://android.googlesource.com/platform/frameworks/base/+/master/telephony/java/com/android/internal/telephony/TelephonyProperties.java


    public static Boolean isDualSimModel() {
        return (Boolean.valueOf("dsds".equals(SystemProperties.get("persist.radio.multisim.config")))                    Boolean.valueOf("dsda".equals(SystemProperties.get("persist.radio.multisim.config"))));
    }

Tuesday, January 24, 2017

How to install letsencrypt ssl certificate on nginx without Unable to locate package letsencrypt error

Today, I thought of moving some of the websites to ssl. so I looked up for a guide on Google and most of them says

sudo apt-get install letsencrypt


but it ends with

E: Unable to locate package letsencrypt

So, I had to go back to the original repo to fix this problem.


git clone https://github.com/letsencrypt/letsencrypt
cd letsencrypt
./letsencrypt-auto --help

this will show the help. If you are trying to configure to run on nginx.

 sudo ./letsencrypt-auto --nginx

and then select the website number. Make sure you do not have anything running on port 443 now.