Problems and Troubleshooting

If Your Phone Is Lost or Stolen

Information about suspending and resuming your service if your phone is lost or stolen and features that prevent third parties from accessing your phone.

Troubleshooting and Repairs

Information about troubleshooting your phone to check for malfunctions, and what you need to do to get it fixed.

If You Forget Your PIN or Password

Check the PINs and passwords you need to access different services and functions.

Problems with Spam Mail / Nuisance Phone Calls

Detailed information about dealing with spam email and nuisance phone calls.

Learning How to Use a Product or Service

Instructions on how to use DOCOMO products and services.

If you do not know how to use a product

Using your mobile phone or smartphone to check on status information in the event of a disaster

DOCOMO provides Disaster Message Board Service and Disaster Voice Messaging Service (both Japanese and English versions) to check on the safety of relatives and friends by mobile phone in the event of a disaster.

Go to top of the page

Footer Navigation