Q&A from the article:

Fix Networking Problem with Korean Version of S4

Edited by Anonymous, Alma, Maria, arbaz khan and 18 others

Questions and Answers

Why I can't change the network mode?

Hi, I can't change the network mode from GSM to WCDMA, if I click the WCDMA, it doesn't work it will back to GSM

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You need to restart and then try again. If it continues to work that way, it is highly possible that the connection for WCDMA is not very good at that period of time, that's why it's going to GSM as a backup. You may want to retry after a few hours, when the connection has gotten back up.

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This is because this is the setting that your device is currently working on at the time. It is best for you to stick with your current network settings so that your device will work appropriately. It is changing back because the device will only work on that network setting at this time as its default, if you need more information in regards to why this is happening please respond with your mobile device model for more help.

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See more questions like this: How can I change the network mode on my Galaxy S4 i9505 clone

How to fix the signal in Samsung S4 Korean version?

It was accidentally reset then no more signal

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You can reset your network signal by long pressing on the power button>>press the airplane mode>>repeat the steps to turn of airplane mode and reset your network settings

See more questions like this: How to fix Korean Samsung Galaxy S4 start up with factory mode

My Samsung S4 Korea cop not getting network in India?

How can I solve this problem

I have used this phone out of India ...... please help

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If manual network selection does not work, you may want to bring your device to the service provider office. They will be able to tell you whether their network is only locked to particular devices. They can also inspect your phone to see whether it is the one causing restrictions in terms of which network it can actually attach to.

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See more questions like this: Sir after Factory Reset. The Samsung Galaxy S4 Korean is showing not register on network, kindly help and how I will update my devise to restore network

Not getting network in my Korean made S4?

I got an S4 (Korean made not original) and I am from India I am not getting network

It is possible that the SIM card you are using does not have coverage within the area or you are not in roaming (if you are traveling). If not, try sending your phone to check if there is a problem with your phone.

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

More questions and answers

How can I solve cellular network not available on my Marshmallow Android phone?

I have 3G enabled Android phone and my SIM card support 3G in my area. This SIM support 3G service in my another phone but does not support in my another 3G enabled phone. When I select that SIM for data use, then during making a call it shows cellular network not available. How can I solve that?

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Can't change GSM to WCDMA PREFERRED?

I bought a phone IQ4400, flight here to Kenya and can't change from 2G to 3G because its in GSM. I have tried dialing *#*#4636#*#* but didn't change. The phone is a 2G. Thanks. I have tried: Dialing #*#*4636*#*# and setting to WCDMA but go back to GSM only. I think it was caused by: Maybe operator details. I'm using Airtel provider.

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See more questions like this: Cannot connect to 3G network on Samsung Galaxy S4 China version

Korea battery problem in S4 Korean?

Hi good morning sir, I have Samsung Galaxy S4 Korean and when I plug my phone in charging it full charges in 10 to 15 minutes and when I start using it in 5 minutes it came to 5 or 10 percent. Sir please tell me what to do

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Most likely you need to get a battery replacement.

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See more questions like this: Network problem in Samsung S4 Korean

In my LG mobile GSM is working, when I switch to WCDMA it does not work

Dear sir, in my LG mobile GSM is working, when I switch to WCDMA it does not work, please solve

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My Galaxy S4 only connects to GSM network which is low speed network?

When I try to connect to GSM/WCDMA or WCDMA, it doesn't accept, what can I do?

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Galaxy Note4 ONLY CONNECTS TO 2G?

Hi, about two weeks ago, I woke up in the morning, only to notice that my phone had no cell reception but other devices around me had network service. I inserted another SIM card into the phone but still the same issue but when I switched network mode, I got cell reception for 2G…These are the responses I get when I switch network modes:. . GSM/WCDMA = E. . WCDMA only = No service. . GSM only = E.. . I have inserted three other SIM cards from different carries here in Nigeria, done a factory reset and even had to downgrade from Android 5.0.1 to 4.4.2 and back to 5.0.1 (have never rooted the device or installed custom ROM) but the issue still persists. Please, what should I do as the issue is frustrating me already. Expecting to hear from you soon. Thank you.

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See more questions like this: About Samsung S5 using 3G network

See more questions like this: Samsung Note4 not connecting to 2G network?

Phone seems to believe it's still in Korea or China or where ever. Can you change the phone location setting?

Makes calls all seems fine but warns constantly that it is roaming and has an R above the available bars.

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See more questions like this: I can't change my S4 data setting to H+ its only 4G , E?

Mediatek clone of Samsung Note3 having problem with network?

I have selected manually to opt network but still it shows a cross mark or key mark with network area, all other things are working fine and no IMEI problem and also data connectivity is not there due to network problem please help

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My Samsung S4 clone GT-I9500 Android version 4.4.4 does not change from GSM?

The phone is only working at GSM only, even though the network operator has 3G. The phone fails to change to GSM/WCDMA mode

I already reset the mobile, and already tried *#*#4636#*#* & *#*#3646633#*#* option, but situation is still the same, GSM only.

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See more questions like this: How to switch Samsung Galaxy S4 I-9500 into 4G

I can't switch my networkmode from GSM to LTE (MTK 6753)?

I am using a custom ROM from a Russian developer which seems to be offline for a while (CM 12.1) and I have the Elephone P6000 Pro. Both SIM-Cards are active but if I prefer SIM2 for mobile data, both can only use 2G Internet. If I prefer SIM1 for mobile data then SIM1 can use LTE and SIM2 not.... . He built in the MTK Engineering Mode but it look like being buggy, I can't access the Band Mode or Network Selection. *#*#4636#*#* also don't work because the combobox is greyed out and stuck with GSM (whether SIM1 or SIM2 preferred). . I need a alternative to force using WCDMA or LTE... I also don't have as much time to wait until the developer responds...

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See more questions like this: Sir, I Can only switch my GSM to WCDMA preferred what should I do ? please Help?

My mobile name is Samsung Galaxy S5 Korean master copy. How to highlight network mode?

It is brought from China to Bangladesh. This mobile does not set change GSM to WCDMA mode . i.e. it always set to GSM mode. Please help me to solve my problem.

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See more questions like this: Network Mode is always GSM only on Samsung Galaxy S5?

My Motorola DROID RAZR is not working?

When I enable my Motorola DROID RAZR maxx hotspot setting, I can't edit configuration settings

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HI Corporal!! I'm 3 stars general...At ease?

I just bought a Korean Samsung win SVH-E500L second hand (looked new) but the WiFi doesn't want to turn on... also I can't get on 4 G... been trying all different thins today and last night, and I will not surrender before this piece of Korean technology!!!. I have tried: Try to root (kingo root and ODIN, no success, factory resets, change SIM cards, try flash new ROMs.... I think it was caused by: I think I got riped off , 25$ is cheap for such a high quality phone, even in Cambodia, or maybe hardware, or some Android issue, will try to use Linux instead, see how it goes

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My device is showing full range but I'm not able to make calls through it?

I have brought a first copy device (duplicate one) from Thailand, and I have put an Indian SIM card in it, the model of device is Samsung a9 6. I'm not able to make any SIM card work on this device; network error, please help me, I have brought 4 devices!..I'm helpless now

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Categories : USE SAMSUNG GALAXY S4

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