when I deploy the app in android, it not working on some device.
really need help
Is it showing a blank screen after the splashscreen? Are you getting any alert messages? Please tell which android version you are using. Hopefully you might’ve used kitkat or below
yes a blank screen after the SplashScreen, I use android 4.2.2 but not work on less than 4.3, but I don’t receive any alert message.
Share your
ionic info
cli packages: (/usr/local/lib/node_modules)
@ionic/cli-utils : 1.19.0
ionic (Ionic CLI) : 3.19.0
global packages:
cordova (Cordova CLI) : 7.1.0
local packages:
@ionic/app-scripts : 3.1.0
Cordova Platforms : android 6.3.0
Ionic Framework : ionic-angular 3.9.2
System:
Node : v6.11.0
npm : 5.5.1
OS : macOS High Sierra
Xcode : Xcode 9.1 Build version 9B55
Environment Variables:
ANDROID_HOME : not set
Misc:
backend : legacy@akr_rajkumar really need help to resolve this problem .
@amedoss, I too faced the same issue with my application, it is working fine for android 4.4 and above, but showing white screen for the below version. Initially I got a message that
the connection to the server was unsuccessful.
Then I tried a solution by giving a line in config.xml
<platform name="android">
<preference name="loadUrlTimeoutValue" value="700000" />
As of my knowledge, the ionic native plugins which you are using might not be supporting the lower versions of android.
same problem 
what is your
ionic cordova plugins list gives?
Are you using a Webview that supports Android versions that old?
cordova plugin ls
cordova-admob-sdk 0.11.1 “AdMob SDK”
cordova-plugin-admob-free 0.11.0 “Cordova AdMob Plugin”
cordova-plugin-app-version 0.1.9 “AppVersion”
cordova-plugin-buildinfo 2.0.1 “BuildInfo”
cordova-plugin-device 1.1.4 “Device”
cordova-plugin-inappbrowser 1.7.2 “InAppBrowser”
cordova-plugin-ionic-webview 1.1.16 “cordova-plugin-ionic-webview”
cordova-plugin-market 1.2.0 “Market”
cordova-plugin-splashscreen 4.0.3 “Splashscreen”
cordova-plugin-whitelist 1.3.1 “Whitelist”
cordova-promise-polyfill 0.0.2 “cordova-promise-polyfill”
ionic-plugin-keyboard 2.2.1 “Keyboard”
i dont use a Webview
vs.
Good luck fixing your problem.
sorry 