1. Why can’t I send an SMS message?
2. How do I start sending SMS again?
3. Will this affect MMS function?
The simple answer is NO.
4. How to convert SMS to MMS?
The simplest way is by typing the words in your Note app and then making a screenshot.
5. Can I add some words to the existing pictures?
Yes. It is achievable by putting text in a picture when you are editing it in the Gallery.
6. How do I add emoji to pictures?
When you are editing the picture in Gallery, insert the emoji as a tag over the original one. Some social media apps also support this practice, so you may edit the picture on a social media app you are comfortable with and take a screenshot without posting the picture.