1 Check your coverage area to make sure that you're in an area with cellular network coverage. 2  Restart your iPhone or iPad. 3  Check for a Carrier Settings Update. 4  Take out the SIM card and then put it back in. 5  If the SIM card is damaged, or doesn't fit in the SIM tray, contact your carrier. Check for a Carrier Settings Update. 2  Take out the SIM card and then put it back in. 3  If the SIM card is damaged, or doesn't fit in the SIM tray, contact your carrier.
Tinnitus is the medical term for hearing noises in your ears when there is no outside source of the sounds. Tinnitus is often called ringing in the ears, but it may also sound like blowing, roaring, buzzing, hissing, humming, whistling, or sizzling. The noises you hear can be soft or loud. You may even think you are hearing air escaping, water running, the inside of a seashell, or musical notes.
People with tinnitus hear noises in their ears. Each person with tinnitus experiences it differently. Tinnitus is from the Latin word for ringing, and to some people the noise does indeed sound like ringing. Others describe their ear noise as roaring, rushing, hissing, chirping, beeping, buzzing, whistling, or clicking. The sound might be high-pitched, low-pitched, or multi-toned, or it might sound like static.