Text messages can't be sent in gray.

According to your description, I suggest you try the following methods:

1. It is recommended that you go to Settings-Applications-All-SMS-Clear Data.

2. Restart the phone to see if it is a signal problem.

3. Check whether the number of the information center is correct: Information-Menu button in the lower left corner-Settings-Information Center.

4. Try to replace another sim card, or wipe the contact point between the mobile phone card and the mobile phone (whether the SIM card is in poor contact or not).

5. It is recommended that you try to upgrade the firmware. (Settings-About Equipment-System Update) If you still can't send and receive SMS through the above method, please bring the purchase invoice, warranty card and machine to Samsung Service Center, and the engineer will check the machine and handle it. Please click the following link to find out the specific location of Samsung Service Center:/support/location/supportservice.do? Page = service. Location and place. cid = cn _ PPC _ support _ service _ repair net _ 120522

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