Q&A from the article:

Fix Networking Problem with Korean Version of S4

Edited by passionut, Calob Horton, Eng, Baffoe Kwame and 6 others

Questions and Answers

Cannot connect to 3G network on Samsung Galaxy S4 China version?

The SIM card has been verified as a 3G type, and I have manually searched for a 3G network but it seems to be unable to connect with 3G. In its settings there are options for GSM/WCDMA but even when selected, it reverts back to GSM-only. I can then only get EDGE signal on the phone. Help!

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If you are in an area with poor reception, you may only receive EDGE signal. However, if you're in an area that you know has good reception, you can follow the steps below.

Switch between the different network options available on your device until you find one that works. If none of them work, call your carrier and ask for a new SIM card. The one you have may be faulty, which would prevent you from connecting to your carrier's 3G network. If the new SIM card doesn't work, you will need to call Samsung to schedule a repair.

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Samsung Galaxy S5 has refused to change network mode?

i.e from GSM to WCDMA or GSM / WCDMA auto

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  1. 1
    Dial from the dial pad in the number sequence ( *#*#4636#*#*)
    .
    Leave out the parenthesis.
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  2. 2
    Select phone information.
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  3. 3
    Scroll down to find Set preferred network type.
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  4. 4
    Click on the drop down menu to select the option you want either WCDMA preferred or WCDMA only and vice versa for GSM.
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Then:

  1. 1
    Go into Settings.
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  2. 2
    Choose SIM Management.
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  3. 3
    Click Network Preferred and tap on your cell phone carrier name.
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How to change TD-SCDMA/GSM to WCDMA Huawei Y511-T00?

I am form Myanmar Rakhine state Ann township. I use my Huawei Y511-T00 in

ooredoo 3G Network. I cannot use it. How to fix it?

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Go back into your Network Mode Settings and reset the Huawei back to WCDMA. You may find it under Dual Card Standby. Then restart your phone. You may have to put the phone into Recovery Mode and Wipe Cache Partition before the phone will let you manually switch to the WCDMA. Your phone is a dual SIM so make sure the SIM are both cleaned and working properly. You can take them out and wipe them off.

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I can't access 3G network on my Samsung S4 and I have checked the settings and my carrier, all are OK. I only get 2G. Whenever I switch to 3G, a triangle sign comes up on top most left corner on the screen?

Samsung S4 3G network issues, kindly help

Settings>mobile networks>network operators and select automatically the preferred network. OR Settings> connections> more networks> mobile networks> network mode and manually change the setting to WDCMA or vice versa.

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More questions and answers on this topic can be found here: Why can't I change the network mode

The above questions are from the following wiki...
Fix Networking Problem with Korean Version of S4
More questions and answers

Trying to figure out why my GS4 is only connecting to EDGE?

I am trying to figure out why my GS4 is only connecting to EDGE. It was fine when it was new and then it stopped at some stage.

You may have inadvertently changed something in the Network settings. Go back in and select EDGE only. See if your phone will accept the option. If it does not then hard reset your phone. Back it up first using Samsung Kies.

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Hello, Samsung S4 Korean version, flash Lollipop version, problem with 3G net not supported, please help me?

Hello, Samsung S4 Korean version, flash Lollipop version, problem with 3G net not supported, please help me

Put your phone into Recovery Mode and Wipe Cache Partition. There may have been some cache from the previous OS stopping you from keeping your 3G.

If you have problems with any of the steps in this article, please post in the comments section below.

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Article Info

Categories : USE SAMSUNG GALAXY S4

Recent edits by: Maria, Menzovic, parvaneh

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