Go to the current URL: https://prc-saltillo.com/texting. Check "I agree" to the end user license agreement, then click the "Download" button.
When the download is complete, go to the app listing and then go to Settings.
Go to Security.
Find the setting Unknown Sources and turn it on. When a pop-up box appears, tap OK. Note: This step will vary with the device. If your device does not have the Unknown Sources setting, the setting will probably appear when you install the AeroText.apk file.
Tap on the home button at the bottom of the phone.
Tap Apps > File Manager. Note: This will be named differently depending on your brand of phone. If your phone does not have a file manager, Google Play has several to choose from. Choose the one that best fits your needs.
Find the AeroText.apk in the phone’s download folder and tap on it.
Tap Install.
If the Google Protect pop-up box appears, tap Allow.
When the AeroText.apk is installed, tap the home button.
Go to the app listing and then Settings.
Go to Security.
Find the setting Unknown Sources and turn it off.
Tap the home button.
Tap Apps > AeroText.
If you see the message “An app wants to turn Bluetooth ON for this device”, tap Allow. Or, if you see the message “This app was built for an older version of Android…”, tap OK.
When AeroText opens, tap on AeroText is not your SMS app at the top.
Tap Yes on the “Change SMS App?” pop-up box. This will make AeroText the primary texting app on phone.