Questions tagged [3g]

Short for "3rd generation mobile telecommunications", 3G generically refers to a set of standards for mobile phones and mobile telecommunications services. Often used when referring to a 3G mobile data connection.

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16 views

Sim Card Virtualization in JIOFI

I have a 3G android without any sim. For UPI verification, a SIM is required. Is it possible to virtualize the sim in JIOFI device?
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24 views

My Galaxy S4: 3G is not working

This phone's main IC has been changed once by authorised samsung service center. But after that the 3G is not working. I have checked all the possible settings issues. And googled a lot. But none of ...
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Specify the Samsung Galaxy S5's 3g frequency band

I'm using a Samsung Galaxy S5-G900I (the Asia-Pacific version) bought in Taiwan to access the Wind network in Italy. The phone can use the 3g network in Taiwan, but in Italy it can't establish a ...
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39 views

How can I continuously measure mobile network coverage on a particular journey?

Every day I spend almost 2 hours on a train to my job and back. My current cellular provider gives me a terrible service most of the time within the train. I'd like to buy/borrow SIM cards of all ...
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1answer
484 views

How to know 3g DNS setting on Android?

I want to know what is the DNS configuration of the 3G connection of my Android. Only to know, not to change (yet).
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1answer
943 views

Translation of RIL_PreferredNetworkType terminology to human speak?

In Android's source code, I see typedef enum { PREF_NET_TYPE_GSM_WCDMA = 0, /* GSM/WCDMA (WCDMA preferred) */ PREF_NET_TYPE_GSM_ONLY = 1, /* GSM only */ ...
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1answer
224 views

Get SIM card connection info

If I want to know if I am connected 2G, 3G or 4G, how do I check that on Android? I don't seem to have any default SIM-related app on my phone, nor does the SIM setting screen give much information ...
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1answer
70 views

Block internet access before firewall starts at boot

I have an old Android phone with Ice Cream Sandwich and DroidWall as a firewall, which makes sure that apps can't use the 3G unless I enable it for that app. DroidWall starts on boot but there is a ...
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1answer
949 views

How to stop a specific whatsapp chat from using mobile data?

I'm on a computer science course, and a few of my peers made a whatsapp group for anybody on the course to join. There are about 100 or so people in the group, and often I "lurk" on it to get help ...
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1k views

Acceptable Signal Strength Ranges for 2G/3G and 4G

I have been logging signal strengths on my phone and am trying to understand what ranges can be considered "Good" and "Bad". RSSI is a measure of signal strength for GSM (2G/3G): -50dBm to -113dBm ...
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1answer
735 views

How Do I Activate 3G Only On Samsung Galaxy A5(2015)

I use Samsung Galaxy A5(2015) and have just upgraded the firmware to Android 6.0 (Mashmallow). The phone supports 3G but the option to set it there is LTE/3G/2G (auto connect) on Network mode. How do ...
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1answer
96 views

foreign phone stuck at Edge [closed]

I have Samsung galaxy j2 ( j200h/ds). Phone is supposed to connect to 3g but it never does. My current network is T-Mobile.
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1answer
123 views

Since which Android version does it detect internet connectivity on Wi-Fi?

For a project I am working on, I need to connect the phone to a WAN (without internet access) and to the 3G/4G network (to have an internet access). On my phone (Motorola Moto M 3G, Android 6.0), the ...
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2answers
744 views

Google Play Services High Internet Consumption

I've been using CyanogenMod (version 12.1-20150901) on my Nexus 5 for around a year and things were running perfectly until last month, when my data plan had been completely used up after a couple ...
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2answers
3k views

Does switching my phone from 3G to LTE only matter if I use mobile data?

I have a Xiaomi Redmi Note 3 Pro with Android 5.1.1 and MIUI 7.3.2.0. In my settings I have the option to choose a network type. The options are "2G", "Prefer 3G", and "Prefer LTE". I only use WiFi to ...
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365 views

My cellular networks slower than USB tethering, what shoud i do?

In the first glance to my title, it doesn't really make sense because the hotspot itself should equal/faster than the client who borrow/tether the network, but due to unknown reason, it always slower, ...
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1answer
3k views

Aggregating two 4G/3G data links from 2 different sims?

Having two 4G capable sims -from truely two different operators (no virtual carriers at all)- and a Dual Active sim phone (Zenfone 2 Laser), I want to do true load balancing with a 1 sim + 1 sim 4G/3G ...
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1answer
110 views

How will I know the signal strength of my smartphone's 3g?

How will I determine the signal strength of my smartphone's 3G whether strong or weak?
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138 views

How do i change settings to improve network signal on galaxy trend lite duos

I have a virgin sim in a samsung galaxy trend lite and for the past few days my network signal keeps coming and going so i cant go on internet most of the time,the phone has been reset and i was sent ...
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1k views

Lost 3G/4G signals, 2G works only; factory reset or downgrade or changes in network settings didn't help

I have a Samsung Galaxy S4 LTE working on Lollipop and I completely lost the 3G and 4G signals. I can only use the 2G signal. When I choose in the network options (Only HSPA) there's a stop like ...
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1answer
113 views

Private communication over wifi but internet over 3G

I have a raspberry pi which creates an WiFi hotspot and I want my android app to communicate with the pi over that connection. The big problem now is that the pi has no internet access so I would like ...
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1answer
701 views

Many notifications show up when connected to WiFi

I have Moto G (2nd gen) with 3G connection. During my office hours I am constantly conncted to my 3G network and when I am to my home I connect to my WiFi network. I have noticed this unusual ...
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1answer
2k views

3G/4G not working in Samsung galaxy S3 SGH-I747M

My 3G and 4G is not working on SAMSUNG SGH-I747M. It's an AT&T version of S3 so according to specifications it must support both. Can anyone tell what should I modify in order to get it working?
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1answer
668 views

My Galxay Grande Prime can't connect to 3G anymore

I used to connect using 3G without any problem. But suddenly the 3G connection is not working anymore. Problem: The networking Symbol "H" appear for few seconds (2s-3s) and they disappear and it ...
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294 views

IP address using 3G/4G modem (USB on the go)

If I use a 3G USB (on the go) modem on my Android device, do I get the IP assigned by the Carrier as the SIM card was inside of the device? Does it appear as usb0 in ifconfig? Thank you. PS I would ...
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4answers
111k views

Change DNS for mobile data without using an app

(My phone is rooted and runs Android 5.1) How can one change the DNS addresses of mobile data (and persistently, if possible) without the requirement of an app?
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1answer
12k views

3G and wifi tweaks explanation required

Where ever I check for build.prop tweaks to enhance 3g or wifi connectivity I see this tweak , can anyone explain what these values are exactly? what is "ro.ril.hep" means ? why given the ...
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1answer
2k views

Can a 3G android phone support 4G?

I own a Samsung galaxy note 3 N900 which is a 3G phone. Its specification include HSPA+ : HSDPA 42.2 Mbps and HSUPA 5.76 Mbps In my area, Airtel is providing 3G at the speed of 2 Mbps and 4G at ...
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1answer
48k views

Moto G2 internet connection switch from 3G to 2G network

I am using Moto G2 with Lollipop 5.0.2. And I am having this trouble that whenever I am using 3G service, it automatically switches to 2G and in between it gets back to 3G. This keeps on going and ...
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1answer
2k views

force 3g mode on android one

As I've said, I want to forcely enable 3g mode on my micromax canvas android one. I've already searched the net for answers but all I came up with was using ##4636##, which unfortunately is disabled ...
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1answer
378 views

How can I timeout my hotspot?

I use my hotspot on the go, then forget to switch to Wifi when I reach my home or office. Is there an app that times-out the hotspot -- and cellular data in general -- and switches to Wifi? It coudl ...
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0answers
120 views

Android tablet as 3G gateway - Limit tethering device 3G bandwidth

Scenario: An Android tablet computer acts as 3G gateway for multiple devices connecting to it via WiFi; everything happens in a moving vehicle. How can I limit the 3G/GPRS bandwidth of the devices ...
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1answer
679 views

Android doesn't connect to proxy server

In the past I could connect to a proxy by entering the proxy's settings in the APN settings or Wireless settings. However, now android seems to ignore my set proxy - after hitting Save it disconnects ...
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1answer
554 views

Phone uses 3G even when connected to WiFi

I've a Moto-G XT1033. When I connect the phone to WiFi, it connects fine, shows the WiFi icon but uses 3G for internet. H+ or E is shown over mobile signal icon and an exclamation mark on WiFi. Here'...
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0answers
5k views

How to configure build.prop file to disable 3G internet?

I am using Android mobile with JellyBean 4.2.2. When on 3G, the device is heating – so I need to turn off 3G data. While that could be done by going to Settings and set mobile networks to "2G only" ("...
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1answer
4k views

How can I cancel an ongoing OTA update download?

Edit: Apparently this question was marked 'popular', so I thought I would mention that I found my solution, which has worked without issue: An app called DisableService which let me disable the ...
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1answer
628 views

Connect to VPN without changing IP

On my windows 7 laptop, when I connect to my work VPN, my IP stays the same as it was before connecting to the VPN. However, on my android phone, when I connect to my university's VPN, my IP is ...
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1answer
55 views

HTC Desire P voice/MMS works, but 3G doesn't

I brought a phone (HTC Desire P) from overseas to U.S.A. I got a voice/data plan with AT&T. We tested the voice but forgot to test data, and later found that the 3G data isn't working. I tried to ...
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0answers
40 views

What causes latencies in the 1-10 second range?

I use my mobile phone as access point now and then. Both home and abroad I have regularly experienced extremely high latencies (10000ms) with fairly low packet loss (5%). What causes this? I have ...
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1answer
596 views

Use 2G instead of 3G on Samsung Galaxy SL I9003

I have a Samsung Galaxy SL I9003 mobile phone. I prefer to use 2G data connection instead of 3G but I am unable to turn off the 3G service in my phone. How can I turn off the 3G service and use 2G ...
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2answers
321 views

How to Switch from 4G to 3G Galaxy Epic 4G SPH-D710?

I have received Galaxy S2 Epic 4G SPH-D710 unfortunately, 4G connection is not available where I live Just only 3G is available. When I turn on 4G hopefully It maybe switch to 3G automatically I get ...
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2answers
10k views

3g network connection Problem while using data

For last two months or so, the situation in my two years old international HTC One X is that the data is not connecting when it is on 3g network but it is working absolutely fine with 2g network. when ...
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1answer
79 views

Does excellent 4G coverage imply excellent 3G coverage? [closed]

Is the primary benefit of 4G LTE speed, and not signal strength? I want to sign up on T-Mobile with a Moto E, which is not an LTE enabled phone. Of course 3G is passe, so 3G coverage isn't clearly ...
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1answer
1k views

Get 850MHz 3G working on Samsung S5 Active

I have Samsung S5 Active. It seems that it never get the 3G signal, only 2G. After some research I found that 850Mhz is disabled in my phone, I tried to enabled it with the code: *#197328640# but no ...
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217 views

Galaxy S2 Lite restarts when using 3G network

I am using Samsung Galaxy S2 Lite running on Android 4.1.2. Using WiFi is fine, but if I use 3G, in some minutes the phone just restarts from nothing. It happens always near my house. In other places ...
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2answers
951 views

Periodic sync of data using Llama

Is it possible to set an Event using Llama, to repeat each hour that switches on the 3G connection, syncs data and then turns off the 3G connection again. I would like to use this during work hours ...
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2answers
924 views

is more battery-dispendious shutting down or leave 3g on?

I know that many apps (like messaging apps eg whatsapp or facebook) every time like 30 seconds, ask the server for push notifications. I know that 3g has many state, when downloading data the consume ...
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3answers
138k views

How to turn off mobile-data/3G for each SIM card separately in Samsung Galaxy Mega Duos?

I'm using Samsung Galaxy Mega Duos and use two SIM cards - one sim with very low charge for 3G connection (called SIM1) and the other with very-high fee (called SIM2). I go to Setting - Connections - ...
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2answers
285 views

Does the phone consume less power when 3G disabled Vs 3G & WiFi Enabled?

I found couple of questions about it but they are two year old. So Is it better to disable (in the top panel) 3G when I have an active WiFi connection and disable WiFi (in the top panel) when I doesn'...
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1answer
2k views

How do I change DNS settings for 3G? [duplicate]

So I can use Twitter. It is okay when I use WiFi. But in 3G I cannot change DNS.