Do you own Samsung’s Galaxy S7 smartphone? In normal conditions, you should be able to send a message to any number format as long as your carrier supports the messaging app you’re using and the number format itself. I never heard of such limitations up to now, yet this is happening to many Galaxy S7 Edge owners and something seems to prevent the handset from sending SMS to a particular number format.
As far as device troubleshooting is concerned, you should better reset the messaging app’s settings to defaults. The Cache partition is a special and separated region in the storage where Android saves frequently accessed data and app components in a special format.
The regular purpose of cache partition in Android is to make the system faster by serving data and files in a special format from a specific location, yet there are also times when cache partition turns into a problem system stability and you may want to wipe cache partition on Galaxy S7 Edge.
Note: Unlike a master reset, wiping the cache partition does not delete your personal data. In other words, Cache partition is separated from the internal storage you can access in Settings–Storage.
How to Fix the 5-digit Number Format SMS error:
- For the start, you have to open the Settings menu;
- Navigate down to Apps. This may be renamed to something like Applications or Application Manager in all OEM skinned versions of Android 6 or 7;
- Once in there, you have to look for the application and tap it;
- You’ll now see a list of stuff that gives you information about the app, including Storage, Permissions, Memory Use, and more. These are all clickable items, but you’ll only have to click on the one that says Storage;
- At this point, you should see the Clear Cache and Clear Data buttons for the application. Do not hesitate to tap them to solve the problem right away.