Download the Hoang Hai Mobile app now to not miss the opportunity to own SIM cards and phones at the best prices! With a friendly, easy-to-use interface, you can quickly search and shop for quality technology products while accumulating points for future promotions. Don't hesitate, download the app today!

--------

In this article, Hoang Hai will guide you in detail on how to set up Docomo calling SIM configuration. The installation method is relatively simple, so you can completely do it.
Note: Must be done in a place with wifi

1. FOR IPHONE

Step 1 : Insert the Docomo SIM card into the phone and check the signal bar.

- Case 1: The signal column displays normally => proceed to the next step.

- Case 2: Signal column is not displayed => Try re-inserting the SIM. If it still does not display, please contact Hoang Hai Mobile staff for support.

Step 2: Check configuration

- Case 1: The device does not have a SIM configuration => proceed to step 3

- Case 2: The device already has a previous SIM configuration => proceed to delete the old configuration:
Enter Setting => General settings => VPN & Device Management => Select the configuration profile you want to delete => Delete configuration

Step 3 : Download SIM configuration

Click on this link to load configuration

When the prompt appears as below, click "Allow"

Step 4: Configuration settings

4.1. Return to main screen

4.2. Select Setting => General Settings => VPN & Device Management

4.3. In the "Downloaded configuration" section

Select the newly downloaded configuration, name CM Link

4.4. Press Setting upper right corner of the screen

4.5. Enter your phone's password (if any) and continue to press Settings

4.6. Continue to click Install again, then click Done top right of the screen to complete the installation.

Step 5: Turn off wifi and wait for the device to reload for a few minutes.

2. FOR ANDROID PHONES

Step 1: Create a new one with the configuration below (note to lowercase the parameters)

- Name: HOANG HAI MOBILE
- APN: cmlink.com
- Username: cmjp@cmlink.com
- Password: cmlink
(Note: all lowercase)

- Authentication Type: PAP or CHAP
- APN type: default, supl, ia