I need APN settings for samsung A21 for metro

This link might help: https://www.google.com/search?q=APN+settings+for+samsung+A21&client=ms-android-vivo-rvo2&sourceid=chrome-mobile&ie=UTF-8

these are apparently the settings
https://www.fixya.com/support/t26922303-apn_settings_safetynet_wireless_lifeline

APN & data settings

1. From any Home screen, tap Apps.
2. Tap Settings > More > Cellular networks.
3. Tap Access Point Names.
4. If available, tap the T-Mobile US APN.
   • If not available, tap the New APN icon.
   • To reset your APN settings, tap the Menu icon with three dots, then tap Reset to default.
5. Verify and update the following settings for the Data APN:
   • Name: T-Mobile US
   • APN: fast.t-mobile.com
   • Proxy: <Not set>
   • Port: <Not set>
   • Username: <Not set>
   • Password: <Not set>
   • Server: <Not set>
   • MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
   • MMS proxy: <Not set>
   • MMS port: <Not set>
   • MMS protocol: WAP 2.0
   • MCC: 310
   • MNC: 260
   • Authentication type:<Not set>
   • APN type: default,supl,mms
   • APN protocol: IPv6
   • APN roaming protocol: IPv4
   • Enable/disable APN: <greyed out unless there are multiple APN's>
   • Bearer: Unspecified
   • MVNO type: None
   • MVNO value: <Not set>
6. Tap the Menu icon with three dots, then tap Save.
7. Tap the desired APN profile you want to use. The bullet point fills with color next to the APN profile.

Manual network selection

The device detects and registers on wireless networks inside T-Mobile's calling area, but roaming networks are usually restricted to T-Mobile SIM cards. You can manually select a network only in areas where T-Mobile does not own GSM spectrum.

1. From any Home screen, tap Apps.
2. Tap Settings > More > Cellular networks.
3. Tap Network operators.
4. Wait while the device populates a list of available networks.
5. Tap the desired network you wish to register on.

Switch 2G / 4G

1. From any Home screen, tap Apps.
2. Tap Settings > More > Cellular networks.
3. Tap Preferred network types.
4. Choose from the following options:
   • LTE/WCDMA/GSM (Auto mode)
   • WCDMA/GSM
   • GSM only

Turn on / off airplane mode

Airplane mode turns off wireless connections. This allows app and menu use, but prevents voice or Internet use.

1. From any screen, swipe down from the top of the screen.
2. Tap the down icon (v), the tap Airplane to turn on or off.

Turn on / off data roaming

1. From any Home screen, tap Apps.
2. Tap Settings > More > Cellular networks.
3. Tap to turn Data Roaming on or off.

Turn on / off mobile data

1. From any Home screen, tap Apps > Settings > Data usage.
2. Tap to turn Cellular data on or off.

From - https://support.t-mobile.com/docs/DOC-28547


this is the instructions for samsung on how to change settings
https://www.t-mobile.com/support/devices/android/samsung-galaxy-j7/network-apn-and-volte-samsung-galaxy-j7#steps1

On the main screen of the Galaxy S5, select Settings.
You should now be able to see Mobile Data - Access Point Names, hit there
Once you are in the APN, please delete any existing APN you have listed there, after that, please create a New APN

• APN: wholesale
• APN type: default,mm,supl
• Proxy: not set
• Port: not set
• Username: not set
• Password: not set
• Server: not set
• MMSC: http://wholesale.mmsmvno.com/mms/wapenc
• MMS Proxy: not set
• MMC: 310
• MNC: 260
• Authentication type: not set
• APN Protocol: IPv4
• APN roaming protocol: IPv4
• APN enable/disable: APN enabled
• Bearer: unspecified
• MVNO type: none
• MVNO value: not set

After you have corrected punched in the correct APN Settings, you need to SAVE it,
Reboot your phone and test it, SOURCE: I have a zte z832 unlocked cricket phone and I put my life wireless SIM card from the lifeline free phones in the phone and need to set the APN ..does anyone know the APN to set to this phone?

you need to set apn settings for that manually. follow this guide for step by step. http://apn-settings.com/us/straight-talk-apn-settings/

1 is an app
2 there web site
3 is a guide

1 Straight Talk Data Settings Android Apps on Google Play

2 Bring Your Own Phone

3 Straight Talk APN Settings for Android Phones Beginners Guide

look here


AT Internet and MMS APN Settings for Samsung Infuse 4G SGH i997

Originally Posted by Geet [img src="http://cdn3.xda-developers.com/images/XDA2012/buttons/viewpost.png" border="0" alt="View Post" title="View Post">
APN Name. any
APN. wap.tracfone
proxy. blank
port. 8080
mmsc. http://mms.tracfone.com
mms proxy. blank
mms port. 8080
hope this works for u as well StraightTalkSIM DATA APN Settings TMobile

mmmm

steps


samsung metro user a data cable

and install Samsung suite from the manufacturer website Samsung support website

and

in Samsung suite inter the internet setting that is apn setting and connect