Hisense E30 User Manual page 36

Impossible to receive or send SMS and photos
Ensure that the storage is sufficient. Delete some
messages in your phone.
Files cannot be opened
Check the supported file formats.
Phone has no sound
Check the settings status in the sound menu to ensure
that the phone is not in vibration or silent mode.
Phone hangs up or freezes
Update your software through the website.
Contacts display doubly
Contacts are saved in both phone and SIM card. Check
contacts saved.
App cannot be installed
• Not supported by service provider or registration
required.
Contact your service provider.
• Your phone has insufficient storage. Delete some
messages from your phone.
Phone cannot be connected to computer
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