The criteria to be observed in delivering the Message of Allah is communicating the verses of the Quran to people in a language they understand. Those that did not read or listen to the Quran in a language that they know are NOT counted as “informed of the Quran”. It does not suffice to be informed of Islam through the media.
You can also see many imams, sheikhs, or hafiz who continuously read and memorize the original Arabic form of the Quran. Some of those people recite the Quran every day but never understand a word of It, because they are not even advised to do so. All of these people are also considered “uninformed of the Quran”, that is “ummi”, because they do not know Its meaning. Such people have not received the Message of God, and therefore they are only responsible for:
1- Not attributing any equals to God, not joining others with the one and only God.
2- Doing what is naturally right and just (being honest, equitable, etc.),
3- Avoiding what is naturally wrong and unlawful (lying, stealing, adultery, etc.).
Please see also the link below for more detail: