Android :: GSM Security - EDGE Or 3G
Aug 1, 2010
I stumbled upon this article yesterday:
Hacker Spoofs Cell Phone Tower to Intercept Calls | Threat Level | Wired.com
I realize that there is a relatively small number of people who would actually try to do such a thing to intercept calls (and potentially data at some point with some tweaks), but assuming that this can easily be done and such, how big of a deal is this really? I'm not too well-versed when it comes to cell phone communications technology, so I'm just curious if anyone here can offer any opinions as far as just how vulnerable this leaves those of us on networks that use GSM like AT&T and T-Mobile. The article mentions that the hacker was only really able to make it work on 2G. Does that mean we're okay as long as our phones show we're on EDGE or 3G?
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Jun 24, 2010
Is there a way to toggle or even an app to use edge only? I have the HTC Aria, and can't seem to be able to select network. It's greyed out, and not sure why. It's my first android.
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Jun 14, 2010
I have recently upgraded to the HTC DESIRE on o2, So far all I have seen is the "G" = GPRS, so far I have not seen 3G, E, or the HDPSA or what ever it is :-). Does o2 support anything else but "G" on this handset etc etc, or is my phone faulty ? I live in the UK and so far today I cant even use my internet - O2 have said there are having issues with 3G but didnt say where in the UK or maybe this is Nation Wide ?
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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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Dec 16, 2009
Is there any app or some thing like that, that I could use it to turn on mobile Internet 2G (EDGE/GPRS) or 3G (UMTS/HSDPA). I now turn off/on mobile Internet with Toggle Data widget, that changes APN type to "-" so it can't work. I am asking this because i use GPS tracker app. And I can turn it on with sms with code: "gps_tracker_start But if i want to report my location I need to be connected to Internet. So I could see my android phone even if it is not connected to internee. So is there any option to turn on mobile Internet remotely?
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Oct 18, 2010
I was going to setup push email with my Edge connection (live in Pakistan, only connection available) Was going to do my APN settings. But came across a post which said that some apps required only edge but that some of them needed WiFi or 3G as well. So i was wondering, Does g mail app/ goggle Sync need Wifi/3G or am i good with just edge network Internet?
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Jun 11, 2010
I am new to this forum and I would like to throw out this question and hopefully someone can point me in the right direction. I am developing an Android application and I would like to setup a tcp/ip type of connection between two Android phones using the 3G/Edge network. My test version will establish a connection if I have both phones on a lan using wifi but when I use T-Mobile's network a connection is not established. Could this issue be a port or ip address?
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May 30, 2010
As part of an application that I'm developing for Android I'd like to show the user an edge-detected version of an image they have taken (something similar to the example below).To achieve this I've been looking at the Sobel operator and how to implement it in Java. However, many of the examples that I've found make use of objects and methods found in AWT (like this example) that isn't part of Android.My question is then really, does Android provide any alternatives to the features of AWT that have been used in the above example? If we were to rewrite that example just using the libraries built into Android, how would we go about it?
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Apr 14, 2010
I have an Android scrollview with a white background. The fading edge is a white translucent gradient. I would like to change it be black instead of white. I have a ListView in the same project with a white background that has a black fading edge by default, but I can't find where (if anywhere) that was set.
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Aug 7, 2009
i have a listview with a very white layout. Thus I wish the fading edge was black, instead of white as it is right now. How can I change this? As far as I can see it cant be done in xml.
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Apr 16, 2009
The service providers in my country are charging for the MBs I downloaded in my GPRS/EDGE connection. So, whenever I want to disable the GPRS, I just change my default APN to something wrong and then correct it when I want to enable it again. I couldn't find another way to enable/disable. I think,Android team assumed that only 3G users with a good data plan only would use this phone. Anyway, I just want to develop an application which can do that automatically for me. However; I couldn't find how to change the APN settings in the docs. but I couldn't find how to use it. Could you please help me? Any alternative ways and/or suggestions are welcome.
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Aug 9, 2010
I am trying to write an app that requires different PDF files to be opened and displayed on the E-Reader side of the eDGe's dual screens while the app is running on the LCD side. I've been using Better Terminal Emulator to cruise around the eDGe's file system but can't seem to find the command that opens PDF files. Does anyone know it or is there even one?
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Sep 2, 2010
I would like to try and save battery life so down load the power control widget and turned all functions off. I also turned off Mobile Network on the power button but noised a E next to my signal strength which according to the instruction book is EDGE ....what is edge?
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Apr 21, 2010
This is crazy but I have certain apps that will only work on 3G it must be my network (O2 in Ireland) as this was the same with my last handset the samsung i 8910. my question is whether it's possible to set the Desire to only use 3G (and not lock onto an "Edge only" reception) I live close to 2 cell towers - one is EDGE only and it's slightly nearer and the signal is stronger - with the samsung I could tell it to only use 3G I don't see anything like this on the Desire menu - anyone seen anything like this.
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Jun 25, 2010
I seen on a thread that u can change your data network buy dialing #*#*4636*#*#.This evo 4g is always on 3g network but never goes to edge.Can I put the phone on gsm only and not have to worry about 3g coming on. Im asking because 3g runs down your battery faster than edge. I put it on gsm only but the 3g symbol still showing that its receiving 3g data. I know on the hd 2 you can turn it of thus saving a lot of battery life.
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Dec 12, 2009
I have it and it's on etc... but how do I know if it's on EDGE or 3G or what, what are the indicators suppose to look like
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Jun 10, 2010
I have everything downloaded for doing the root... the Rom, the recovery file, all that jazz... but I am hanging on the edge to whether or not I should do it. Afraid I'll brick the phone, and I'm worried once i have it, i really wont know what to do (more like keeping it up to date/maintenance) I'm up for any advice to sway me one way or another. JFYI, I'm just looking for opinions. I'm not going to blame anyone for my decision Lo L. I just want the full potential to my phone, while keeping it safe. P.S. You don't have to send me links on how to do it, where to look for Roms, etc etc. I've done my research her in the threads.
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Dec 16, 2009
Does Android keep the connection between the server/socket when it moves from EDGE to WIFI and vice versa?
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Aug 1, 2010
After messing with the settings and tryna figure this out, I think I came to a conclusion. When I set the camera setting on the phone to 3.2MP and the Picture quality to Normal, I was able to send an MMS Picture message over the EDGE network. I started trying to figure this out when I download FXCamera and noticed that it would send an MMS over EDGE. So I went into the settings on that program. I noticed the smaller picture with less quality sent, and the better quality picture didnt send. And I waited, and waited, and waited and still nothing.
So I put on the Default Camera App. I had it set to Super Fine and 5MP. I could never send an MMS picture that way. Switched the settings....3.2MP and Picture quality to Fine, and Bam. The picture sent. Give it a shot, tell me how it works out for you.
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Jan 22, 2010
Tried doing a search for a topic with people having the 3g/2g issue and couldn't find out except for the one people discussing the baseband. For those of you with this problem, what are you experiencing? I just got the nexus activated and it stayed on 3g for about 30 mints before switching to 2g with me sitting in the same spot. then after 30 mints went back to 2g and now its just stuck there. I've checked the map and I should have excellent signal. Is there anything at all I can do? Will rooting and adding custom Rom help?
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Jul 19, 2010
I've looked through all the settings seemingly and tried looking for a widget to do the job but cant seem to turn 3g off and use edge to save battery.
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May 21, 2010
Interesting article:
iPhone losing it's edge
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Nov 22, 2012
If I leave my s3 wifi or edge on all the time and put into charge without turning off internet on phone will it affect battery? Can I charge while wifi on my s3?
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Jun 10, 2010
I just bought a Legend and am loving it for the most part. But I have one big problem - apps are not accessing the internet when not on WiFi. I have Vodafone, and the EDGE connection (we don't have 3G in India yet) works in the Internet browser, but none of the apps (twitter, facebook, nytimes, kayak) work on EDGE. Is there something I need to change in permissions or settings? All these apps have full internet access in their permissions, so I don't get why they are not working.
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Apr 11, 2010
Is this normal or some kind of scam by sprint?
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Sep 28, 2010
I am using x Peria mini and does anybody know if there is a way to change 3G to edge or 2G? And how to change?
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Nov 24, 2009
The plastic edge that runs around the lower part of the slider on my phone is a bit loose right next to where you plug the micro USB into the phone. It's very minimal, just a little bit of give that you can't actually see but if you press against it there is a slight clicking noise from the plastic edge moving slightly.
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Jul 8, 2010
I recently saw a thread about the forced 3g code for the n1. Basically the code keeps you from switching back and forth to edge. Anyone know how to remove the settings that enabling this code has added
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Sep 3, 2010
Just installed Galaxo 1.6.3.4, everything works great, except that gprs/edge capabilities seem to be switched off? They used to work before the root. I can use wifi, but cannot get any data traffic outside wifi areas.
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Jan 22, 2014
I have a custom drawable, where I draw a base bitmap image, then part of an image over the top of that that is clipped to a certain rectangle. For the overlayed image, I am trying to blur the edges, and I thought I could accomplish that using a BlurMaskFilter, however, I'm not seeing any blurring occurring.
Here is the content of the draw method from my Drawable class.The result is almost correct, except the overlay image is not being blurred.
m_paint = new Paint();
m_blurPaint = new Paint();
m_blurPaint.SetMaskFilter(new BlurMaskFilter(blurRadius, BlurMaskFilter.Blur.Outer));
[code]...
This code is written in C# using Xamarin, so I realize that some things are slightly different, but the overall methods will be the same.
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