How does Samsung I9220 access to 3G network? 10

Hello dear Samsung users:

According to your description, the i9220 model phone supports China Unicom 3G network. If you need to use the 3G network, you need to insert the Unicom mobile phone card to use it, if you can't search for the Unicom 3G network. We recommend that you try the following steps:

1.Turn your phone on and off again.

3.Try changing a SIM card.

4.Update the system version of the phone to see if there is any improvement.

5.Back up your phone's data (book, SMS, multiple files, etc.) and restore factory settings.

If the problem persists, we recommend that you take your phone to the nearest Samsung service center for testing and repair.

It is recommended that you apply for "appointment to store" on Samsung's official website to enjoy priority repair services

After the appointment is successful, please bring your machine, invoice and warranty card to the service center where you made the appointment on time.

Comments, suggestions, complaints, please click:

Incomprehensible, 9220 is a WCDMA network by default, can you use TD's 3G network? I also want to learn.

Yes, dear, I use i9220. Presumably you already know how to turn on the data network mode, turning on 3G is the same button.

Based on your description, it is recommended that you:1The mobile phone uses China Mobile, Unicom, and Telecom 3G cards2You can use 3G Internet access with local coverage of 3G network signal, no setup required.

OK. As long as it's not a mobile customizer.

Hello, Samsung i9220 how to adjust wifi operation as:

1.Turn on the wireless signal of the wireless router and make sure that the router network is functioning properly.

2.Turn on the Wi-Fi function of your phone.

4.If the password entered is invalid (confirm that there are no mistakes), it is recommended to change the encryption type, for example, with WEP encryption.

5.Through password verification, the phone will automatically get the IP address with the router, if you can't get it, please confirm that the router is turned on. DHCP function can be obtained correctly after turning on If you still can't get it, it is recommended to confirm the number of IP addresses in DHCP Restart the mobile router and try.

6.If you can't access the Internet, please confirm the transmission bandwidth of the router (the bandwidth supported by the supported router is 40MHz, and it is recommended to set it to 20MHz) Confirm whether the router network is normal, and confirm that the router has IP filtering and MAC filtering set up in the router.

7.If the message indicates that DNS fails and is not available, it is recommended to confirm whether the DNS settings in the router are automatic Dynamic If the DNS is static, you need to manually fill in the DNS in the mobile phone.

8.It is recommended to reset or replace the router.

9.If the above test is still non-devastation, it is recommended to send it for repair.

Settings Then select Wireless & Network Settings.

Set up Wifi and network wifi settings.

According to the situation you described, if your machine is used normally at home, basically troubleshoot the problem of mobile phone failure, it is recommended that you try the following operations:

1.Restart your phone and try.

5.Reboot or reset or replace the router attempt.

After backing up the data, and then restore the factory settings of the mobile phone, the operation is: (Settings - Privacy - Factory Reset) If the above attempts are invalid, Qingli please bring the three guarantees certificate and warranty card to the service center for testing and firmware upgrade. The address of the service center can be found at:

It is recommended that you contact the service center before you go to.

Because the default connection mode of the mobile phone is 3G wireless Internet access, you need to turn off the "wireless data Internet access" first (or turn on the wifi connection first). Of course, you must have a wifi network hotspot around you to use wifi to access the Internet, after opening the wifi, he will automatically collect the request, you find the corresponding hotspot name and click to connect, enter the password after the wifi Internet access.

Samsung i9220 can't connect to wifi, it may be related to the wireless network itself. Recommendations:

1.Turn on the wireless signal of the wireless router and make sure that the router network function is normal, and the router connection password is at least 8 digits.

2.Connect the router with another device to see if it is normal.

3.If you can connect before, but now the connection fails, it is recommended to forget the network and reconnect, operation: Settings - WLAN settings - click and hold the name of the network to be deleted - forget to delete the network.

4.An attempt was made to replace the static IP address. Method: Settings - WLAN - Search for the network to be connected - Select the network to be connected - Show advanced options - Check box - The default IP setting is DHCP (router automatic assignment), you can manually select it as static.

5.Restart your phone and router separately.

6.Check and confirm whether the router settings are correct according to the router manual or contact the router customer service.

7.Try it with a different wireless router.