General :: Can't Get Mobile Connectivity
Jan 27, 2012
i rooted my android phone (xperia arc- lt15i, on firmware 2.3.4) and installed titanium backup, with the intention of clearing away bloatware that came bundled with the phone. I did a backup of my whole phone with the app before proceeding.
but being the idiot that i am, i accidentally deleted something called "voicemail ..." (can't remember what comes after that). now it is gone from titanium backup completely.
the thing is after i did that i immediately lost my phone connectivity (can't make calls out/3G etc) and whenever i go to settings>wireless&network settings> mobile networks, the phone crashes, with the option of 'force close'.
but wifi and the other functions of the phone still work. i tried restoring via titanium but it still doesn't work because the file was deleted.desperate for a solution, i tried a hard reset but the problem still remained, and strangely after the reset i lost control of my middle, hard home button.
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May 19, 2012
I need to do the same thing i do with connectivity but in my phone, i connect to the web with my wifi and share internet with the same wifi adapter.
i been looking into it for a while and people keep on say that i need 2 widi adapter for it but is SO no true coz i have and use only 1... I don't wanna use bluetooth at all or connect it with usb.
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Jan 15, 2012
I recently did a factory reset and flashed stock Android 2.3.6 back onto my Nexus S. Ever since I did that I have been getting an alert show up on my screen whenever my data connection is lost or restored. This is really annoying since I'm using JuiceDefender and my data is turned off everytime I put my phone display to sleep and it is restored once I unlock my phone.
The message pops up in the middle of the screen in a grey box that says "The connection to the Internet has been restored."
I never had this on stock Android before or on Cyanogenmod 7, any way to turn off the alerts? Is this a new built in feature to 2.3.6?
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Mar 22, 2012
So my work doesn't allow phones to connect to our mail server. So all of the apps for email will not work, they are simply denied connection.
However, I have outlook on my home PC and it connects to my works email server VIA RPC settings. I have no special VPN... nothing. RPC just works and works great. So if RPC in outlook can connect, why not a phone app? And even more is there a phone app that can connect VIA RPC? I have looked, but I may have missed the setting in an app or an app all together
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Jan 15, 2013
I own Micromax A25 but it is 2g phone so internet speed is really slow....It is Based on MTK6575 1Ghz Armv7 CPU which supports 3g I got it from a youtube video.
Here it is : [URL] ....
Can I Surf 3G in my phone (I think I need A custom ROM). Anyway I am Rooted and Installed CWM6....
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Nov 14, 2012
I have a small issue with my remote connectivity to my android, the scenario is simple and my target is to connect to my android remotely through my laptop while the android is connected to my PC in the other room through USB cable, so what I have done already is that am connecting the Android to the PC through a USB cable and the PC to the Laptop through the LAN, now am connecting Remote desktop from my laptop to the PC and on the PC I installed application that can connect to the android so I can totally see the skin of my android and control it, but the final thing I wish to do is to make a phone call, here I connect a Bluetooth to the PC and I connect the Bluetooth as free handset to the android it didn't totally work, you see its interesting scenario and if we work together we can accomplish something really assume
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Feb 26, 2012
I was wondering how I can create a variable for whether or not my phone has data connectivity. I use google voice for texting (I have a sprint integrated google voice number), but when I go out I turn off my wifi/3g to save battery, and text with my stock SMS app. When I swipe upwards on my launcher (Nova launcher), my texting app launches (google voice). However, I would like that gesture to launch a Tasker task - one that launches Google Voice if my phone has data connectivity, or the stock SMS app if my phone does not have data connectivity. However, Tasker does not have a built in variable for data.
More specifically, I would like this task to do the following (in pseudocode)
if (%data == ON)
Launch Google Voice
else
Launch stock SMS app
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Nov 15, 2012
I have bought S3 i9300 few days ago.Its updated to Android 4,.1 and it is rooted.Screen uses more than 50% of battery but the brightness is at low.I am facing is the WiFi connectivity , when I disconnect the WiFi it remains as and does not work at all.I think the WiFi problem is due to old kernal but I don't know how to update Kernal ?
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Oct 28, 2009
My application has some code which detects if the Android device is connected to a Wi-Fi or Mobile network.
The code appeared to be working fine for Andoid 1.5, but does not seem to work correctly for Andorid 1.6.
Here is the code I am using:
CODE:..........................
Under Android 1.5 this code would correctly detect if the current connectivity was Wi-Fi or Mobile. However under Android 1.6 the call to getActiveNetworkInfo seems to always return a networkInfo instance with the type set to TYPE_MOBILE. This is happening even though the icons in the bar at the top of the android screen show the Wi-Fi connected icon with the full signal strength bars showing.
I don't know if this means that under Android 1.6 it is actually using the phone data network for connectivity instead of the Wi-Fi connectivity when both networks are available, or if the getActiveNetworkInfo call is just returning the wrong information for Android 1.6.
Has anyone else seen this issue with Andoid 1.6? It would be too bad if 1.6 is really using the bandwidth on the phone data network instead of the Wi-Fi network when both networks are present. Does anyone know if there is a different way to correctly detect if the Android device has Wi-Fi connectivity?
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Apr 29, 2010
I am with first Droid phone. I have had an HTC Desire for approximately 1 week and absolutely love it. When I first got the phone, the connectivity was always H in the status bar, with very good I-net speed. For some reason, unbeknown to me, it is now a G, sometimes a 3G. The speed is still quite good though. This 'change' would appear to have been since I received a text from T-Mobile (I'm aware of the 'G' issues on their forums) alongwith the lines. They hoped I liked their new webpage. Now they have reverted to the original webpage I may have to re-load my favorites. I have not had to do this, thankfully. Under Wireless & Networks, WiFi is off, as I am on an 'unlimited' 3GB plan, and I am using GSM/WCDMA auto under Preferred network mode.
Questions: -
1. What is the difference between the three, namely H, 3G and G?
2. Which is quicker?
2. Can I change it back to H, if I wanted, as I believe it was quicker?
4. Sometimes, although not very often, the G, 3G and H disappear altogether and I am left with no connectivity at all. However, if I try to access the I-net, I can, and either the G, 3G or H appear again miraculously. Is there a particular reason for this?
Hope to hear from you experts soon and apologies for such basic questions, as I'm still getting used to using a droid. My last phone was a Nokia N95 2GB. Huge difference!
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Jun 22, 2010
I hooked the usb to the phone but it does not give me an option to put music on the card that way. I am new at this.
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Jan 16, 2012
I am trying to find a way to get the connectivity state in a service, found the code below but getSystemService is red underlined.
public boolean isOnline() {
ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE );
return cm.getActiveNetworkInfo().isConnectedOrConnecting( );
}
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Aug 21, 2013
We are developing an Android application that uses bluetooth to connect to a board that we developed. If we try to connect to the board after the system has been off for a while, the system connects correctly and begins to stream data. The data stream will freeze momentarily, then start, then freeze, then shut off after about 6 - 8 seconds. If we try again it will repeat this process. It is almost like the Android is checking to see if it is an ok device to connect with, and decides no for some reason.
The only way we have been able to then connect again is to un-pair and then re-pair the tablet to the board. After we unpair and re-pair, the connection works well and will continue to work well until we turn the tablet off.
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Nov 20, 2010
I have recently created a new gmail account, and transferred all contacts etc. Since my Hero cannot read more than one account, I deleted my first account - planning to reconnect my Hero to the new account - thus enabling all the new data to connect.
However, my phone will not connect to the google server - thus I cannot get my contacts or calendar, and cannot get to the market. The message I get says: 'cannot establish a reliable data connection to the server'.
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Apr 29, 2010
So I dropped AT&T for the Incredible and my number successfully ported over, but I cannot connect to the Internet.I can make/receive calls and SMS, but no Internet besides wifi.I've been on with vzw support and went through reactivating the phone (*228) and a couple hard reset to no avail.They said it could have something to do with porting from AT&T, but I'm not understanding that connection.I don't have too much faith in support figuring out so I'm trying this forum. Does anyone have a clue how to resolve this or is it a defect with the phone.Some details: there is no 3G symbol near the signal status bars.Settings/Wireless & networks: shows "Mobile Network" with a green check, buts its grayed out so no action can be taken on it.Directly underneath "Mobile Network" it says "Turning on..." and it seems to flash that status every once in a while.
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Jun 29, 2010
I am currently in China and therefor run a VPN on my PC to connect to the outside world, I would also like to run the same VPN (PPTP) on my android. I can connect via VPN if I am using WiFi but when I try to connect over GPRS/Edge I can't get any connectivity. All web pages load with the standard "web page not available" and apps, eg. the market place, won't connect either. I would have thought that if it was a carrier issue (CMCC) I wouldn't be able to connect to the VPN in the first place. So is this a Android issue, a setup issue or a carrier issue? And can you actuality run a VPN over GPRS om Android?
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Feb 8, 2010
Since the recent update I have been unable to pick up a 3G signal.
The Nexus used to show a 3G symbol but now all I get is either a G or E.
I am now in the middle of Manchester when I used to pick up a 3G signal and all I can pick up is Edge.
Has anyone else experienced this or know how this can be solved?
What does G mean if its not 3G, could it be 2G? Whatever that is...
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Jan 30, 2010
Is their a way to cancel the option in the galaxy that it will not surf on a 3g network automatically when for some reason I lose my WiFi signal for a sec?
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Oct 30, 2010
My app doesn't connect through HTC EV0-4G. How app can access network through CDMA 4G.
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Nov 17, 2010
I have a simple java code which gets html text from the input url:
code:................
I am using this code in an android project. Now the problem comes when there is no internet connectivity. The application just halts and later gives error. Is there some way to break this after some fixed timeout, or even return some specific string after an exception is thrown.
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Oct 6, 2010
I have an IntentService which makes some web service calls. Before making these calls I check to make sure the device has network connectivity.
I am doing so like this:
CODE:.............
Unfortunately, when I'm debugging on my Android device, this returns false when I have both a network and a wireless connection.
Some interesting tidbits about connec.getNetworkInfo(0):
CODE:...................
Clearly this code is not sufficient (perhaps it would only return true if I sent some bit over the network and turned the radio on?). Moreover, since I'm not well versed in the ConnectivityManager, I'm assuming I should probably be scanning all networks (ie: getNetworkInfo(0 through N)).
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Dec 30, 2009
I have this problem- after do wake my Hero up on desktop and try to load some web page, the phone shows "Web page not available", and when I click on the shown link for the same page below this label "Web page not..."-everything is back to normal till next time when phone goes to sleep mode..
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May 16, 2010
I am working to send request to internet and get data, my emulator show the 3G sign on it, i have also sent the permission to internet connectivity in my app. But when i click on button to send request it return null. I have checked the request link in chrom it send data successfully.
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Nov 12, 2010
I had a rooted Evo with 3.26 build with wifi tethering that worked PERFECTLY, got damaged, so my insurance replaced it, and now I have a brand new Evo 4g with 3.29.651.5 build that I just rooted and downloaded wifi tethering, but can't get online! I have "limited connectivity". I didn't have this issue with my last Evo. Anyone else had this problem with a new Evo before?
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May 2, 2010
I'm new to Android development and working on an Android application that requires the phone to be connected to the internet, through either Wifi, EDGE or 3G.
This is the code that I'm using to check whether an internet connection is available
CODE:................
I've also set these permissions in the manifest file.
CODE:.................
This works fine in the emulator running version 1.5 of Android when 3G is enabled, but it crashes when I disable the 3G connection. My application throws a null pointer exception when I call isConnectedOrConnecting(). The same thing also happens on my HTC Desire running Android 2.1.
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Jul 1, 2010
my WiFi on my Evo has been acting up, so I went and restarted modem and router, turned off WiFi on Evo, battery pull Evo, then as a last resort, I updated my router's firmware (since its been over a year since update =/) so I figured maybe that would solve something. Nope, can't even update Twitter, Facebook, get on internet. I did update on 6/28 and everything went smooth and my WiFi was working then. I have done nothing since and then all of a sudden, last night and today WiFi wont work.
I guess to explain this better, I can connect to my router, Evo shows that I'm connected with Good/Excellent connection and 55 mbps, but its like no internet connectivity, Facebook, Twitter, Internet, nothing. Like I've said up until last night everything was working until now. Did the update on 6/28 just slowly kill my WiFi?
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Jan 5, 2010
My chat application connects to a server and information is sent/received by the user. When the connection changes, such as 3g->wifi, wifi->3g, losing a data connection, etc, the socket sometimes stays connected for ages before disconnecting. During this time, it's impossible to tell if the connection is still active, it seems as if messages are being sent just fine. Other times, when sending a message, it will throw an IO error and disconnect.
Apart from implementing code to detect connection changes and reconnecting appropriately, is it possible to have the socket immediately throw an IO exception when connectivity changes?
I'm connecting using the following code:.........
I'm not using setSoTimeout as data may not be transferred for long periods of time depending on the remote server's configuration.
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Jul 9, 2010
I am trying to check internetconnectivity in android and using following code
CODE:..........
But it gives me network/ wifi connectivity if wifi is connected it gives me true and if internet is not connected then it also gives me true.
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Aug 4, 2010
Anyone else lost 3G? My phone is fine cause I haven't flashed a ROM in a few days. But I Rooted a friend of mines yesterday and flashed Suave Smush. Everything was fine until he called me this morning and said he had lost 3G. A little later it would not send or receive a text message. Then it kept saying he was out of his home network. We wipped it clean and did the Nand Restore and its fine now. His phone still has Android 1.5.
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Aug 20, 2010
I notice in my mini pro that when I disabled my data traffic for more than two hours, and turn it on again, there's a problem. After turning on, the 3G won't go active. It stay offline. Once, I had to disable the traffic and turn it on again for the 3G to activate. But last time, I need to reboot my phone so that the 3G could be accessed.
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