Aggresively Switches from 4G/3G to Edge - Galaxy S 4 Active Q&A, Help & Troubleshooting

Hi. I've experienced this for a while and I kind of got used to it but I just want to know your opinion regarding this. First off, I'm from the Philippines using a Globe telecom sim. Whenever I use data, I've noticed that it switches to E from 4G/3G quite aggresively. I have a spare phone on the same network and it remains on 4G/3G. To remedy this, I need to turn off the mobile data, go to Network Operator then choose 'Select Automatically'. I go to Network Operator again but this time choosing the network I'm on (Globe). After some time, it'll go back to E then I have to repeat the process again.
Is this a modem issue or a network issue? I'm on modem OE8, running Albe S6 Port 3.5.

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Desperatly need help getting 3G instead of E

Hi guys,
I brought my first xperia from my phone serivce provider, and it always had the "3g" symbol at the top. However, when my xperia broke, I had to buy another one and got one of ebay. Since I brought the new one, my phone always has the 3 on top. I'm currently using the firestorm valkyrie rom which as the htc interface. When I go to the data connections it says an option (3g) "change to gsm mode" and on is selected. Even when I toggle that, it still always has the E symbol. What do I need to do? I know my sim card is cabable of getting the 3g. But this is a real pain because every now and then my phone just doesnt receive service, so I constantly go onto the comm manager and then it seems to just click that there's service and shows 2-3 bars. Then all of a sudden again after a while there'll be no service. So I'm guessing that's because of the E thing. It shouldn't be my current location as I've never experienced this before.
Is there a setting I can go to to get the 3g symbol? Or a patch I might need for the phone?
Please help
Kindest regards.
You need to change while the connection is not active, I believe. Or... you got the Xperia version incompatible with your network... Or... the ROM is buggy, try another.
sorry, I need to change specificially what when the connection is not active? Say you mean, turn off my phone settings and not connect to the network and then adjust something? It is not the rom. and the seller on ebay has stated that it is a 3g phone - many others have brought it as well with no complaints.
3G settings on x1
Hi
For some reason your phone is only camping on the GSM network (G or E indication depending if your carrier provide GPRS or EDGE on the GSM) instead of the 3G network (which you have been using before).
In settings, communications you should be able to set "3G change to automode" to on,
When this is set your network provider will tell your phone to use the 3G as preffered network, but when coverage is not good enough it will drop you back to 2G (which has a better reach due to lower frequency band).
If it does not happen automatically there might be another setting that is wrong,
goto settings, all settings, personal (tab), Phone.. then choose the "band" tab (need to go to the left with the arrows) , then you have the dropdwn lists to set:
select you network type (need to set auto or wcdma to get 3G)
select your GSM/UMTS band (need to set 900+1800 for europe, 1900+850 for us, dont know who is using 2100+800)
once changed the phone will restart the phone part and search for your carrier in the right band.
good luck
Hi,
Thanks for your reply. I had changed the automode to on. But still had the E.
I went to the setings, and band tab, and i had selected:
Select your network type:
(blank)
Select your GSM/UMTS band:
Auto.
I changed the first oen to auto, and as for the last, here in Australia I'm with Tesltra which is 850 UMTS? I think I read online. Anyway it didn't have the option in there, so I went through them all but wouldnt get service at all except for the first: GSM (900+1800)+UMTS(2100+900). and Auto. I think my last experia might have had auto for all of those too. Anyway with those only two options working, I still get the E icon. Even tried setting aeroplane mode on and then off to see if it might register, but it didn't.
sianlee said:
Hi,
I changed the first oen to auto, and as for the last, here in Australia I'm with Tesltra which is 850 UMTS? I think I read online. .
Click to expand...
Click to collapse
I see , Telstra is one of very few networks that use 850 for WCDMA so they might be using a different RADIO ROM than the rest of us
I saw in the thread below that there is a TELSTRA AUSTRALIA (1.03.841.8) R2AA008 version..
http://forum.xda-developers.com/showthread.php?t=477801&highlight=telstra
you probably need to flash that one to get the 3G working on telstra..
3 is using the normal 2100 so you could also try with their SIM just to check that there is nothing wrong with your hardware..
Sorry for the late reply.
I have realised that i'm in an area that doesn't support 3g. however my last xperia phone which I brought from telstra was the x1a, which had the next g network - hence I got the 3g symbol. However I have found that that I have the x1i, which doesn't list that network. I rang up telstra, and they transferred me to the sony erricson call centre, and they said you can try and do an update but it is not gaurenteed to get the next g service. I have already flashed a htc rom and don't particluarly want to change it back, unless i'm certain that I will get the next g service.
With the rom you have provided, do you think it will have the UMTS 850 band on there, and my x1i would be able to connect to it? I would have thought that it would be a hardware preference, not a software. In which case, even if I updated the rom because there is say no "chip" that allows for connecting to that band, it wont connec to it even though I may have selected the 850 UMTS band.
Sorry if that seems all over the place, but yeah... I'm not sure.

[Q] glitchy One, wifi not connecting, can't make calls, data very slow

I'm not rooted, and have stock ROM. It's a SIM-Free HTC One. Connected to EE network in UK.
I've got a fairly new issue that I just noticed in the last week. My HTC One is my second phone so I don't use it as much, but I'm at a point where I want to get rid of it due to the following issues:
I can't make calls, it would sometimes connect but i can't hear anything. This doesn't seem to be a network issue as a user with an iPhone5 seems unaffected.
I can connect to my 5Ghz WiFi network, but not the 2.4Ghz one, it just saves the password but won't connect. I've also noticed if i disconnect from the 5Ghz network, restart phone, i can make calls and hear the other side.
Using Data network, it doesn't seem to want to load anything, it shows 5 bars HSDPA and either goes incredibly slowly or just doesn't load at all.
General performance issues, everything would become incredibly slow, stuttery and incredibly annoying to use. yesterday the device crashed and restarted.
Any ideas what I should do? Try a full reset (ugh...) or is the device faulty in some way and I should contact HTC Support?
go to the dialer and type
*#*#4636#*#*
choose phone info, scroll down to the only dropdown box and select the correct setting for your provider ( wcdma preferred if you don't have a 4G contract)
and then back button about 4 times and try it again
It seems to be the way it should be: GSM/WCDMA/LTE Auto. I was in France a week ago and it had serious issues roaming and data roaming, i had to change it to GSM/WCDMA auto or WCDMA only to make it work. and now back in UK, i set it to the same setting it used to be before I left.
On a side note, I have realised that EE is having data network issues in my area. I tried the SIM in another Galaxy S3 and it had difficulties loading websites, but, it COULD make calls without problems.
Also, no crashes as of today on the One, I still can't connect to my 2.4Ghz wifi router. Could the fact that I was using 5Ghz somehow messed something up inside the One?

[Q] Phone does not automatically switch mobile network mode

Hello,
My I9000 has a peculiar problem: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.)
This problem has first appeared rather spontaneously when it was running its stock 2.1 firmware and has persisted through upgrades to stock 2.3 and CyanogenMod 10 through 11. I've attempted to switch modem firmware to mitigate it to no avail. (Modems XXJVT and ZFJPG/BVJJPG were tried, no difference was noticed - I am rather wary of messing with modems further, as this is my only phone and I'd rather it still could call at the end of the day.)
Moreover, if network mode is switched to GPRS/EDGE manually, it can't be switched back to 3G (either manually or automatically) without a reboot. (The 'set preferred network type' field in *#*#4636#*#* starts resetting itself to 'Unknown' spontaneously at this point.)
Unfortunately, I don't know many details of the incident that caused the appearance of the problem, as I was not the owner of the phone at the time - I only know that it was roaming nationally (within the same country) at the time. (The network type should have been the same, and it's not like it's stuck in roaming in any way.)
Has anybody encountered such a problem before? Is this likely to be a hardware problem, or could there be a software fix?
Thank you in advance for your thoughts.
[Zaba] said:
: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.) .
Click to expand...
Click to collapse
you need to try fiddling with its network settings (read this for info only) you can use service codes on i9000 to set your network settings . Sometimes it may be due to network settings not set to Auto and set to preferred and at other times it could be antenna connection inside the phone having poor contacts.
Check this out! Links to useful Guides and " Banned " Documentaries ​
Thank you for the hint. I have tried setting the "Select radio band" setting in *#*#4636#*#* > Phone information to European bands manually, and this appears to have mitigated the problem at least partly (phone has switched to 2G and back a few times during the day). I've noticed that it would sometimes just turn mobile data off despite having a good signal, not sure if this is related. It also sometimes seems to prefer another operator's 3G network to its own 2G ("emergency calls only", network mode is UMTS/HSDPA), but this is only guesswork since I have no way to actually confirm that the areas where this occurs have 2G coverage (it just seems really unlikely that they wouldn't). Maybe the fact preferred network type is "WCDMA preferred" factors into this.
TL;DR: Forcing radio bands seems to have helped, other radio weirdnesses remain but aren't nearly as bad.

APN List

Hi there,
I have a question regarding the APN list in Android. I mostly use stock ROMS, and I noticed that my provider (Telfort, Netherlands) uses a network by KPN (that's another provider). The result is that every time I connect my Wireless Data, I need to enable roaming. Result of that is that I cannot see to which network I'm connected (2g, 3g).
A week ago I flashed the Omni Rom. Excellent Rom, but it is not suitable for me yet. Anyway, the network connectivity indicator showed 2g, 3g, HSDPA, etc. It works in that ROM, and I didn't have to enable roaming.
So to come to the question, can I add a list of APN of some kind, so I can see my network mode?
Thanks in advance.

[Q] Data Roaming setting (Off) not retained while Roaming

I hope this is in the proper forum and hopefully the question has not been answered yet. I did a search and have found some threads but not this exact question.
So anyway...I have a Rogers (Canada) HTC One M7 running 4.4.2 and HTC Sense 6.0,
Lately I have been roaming in the USA and have incurred roaming charges even though I set my Data Roaming setting to Off (no check mark). It seems to only happen when I am roaming. Basically this is what happens.
The Data Roaming Setting is set to Off all the time.
I go into the US and lose data connection as I start to roam. This is fine.
If I turn off Mobile Data and then later turn it back on, I get the "You are roaming and incur charges..." pop up box.
The only options are OK or Cancel
Choosing Cancel keeps the Mobile Data Off
Choosing OK turns ON Mobile Data and the Data Roaming setting is suddenly set to ON (there is a check mark where previously there wasn't) and I now incur charges.
Is this by design? Shouldn't the Data Roaming setting stay off, even if you turn on/off the Mobile Data? I am not sure if this is a Phone Issue, and Android issue (OS or corrupted OS) or a Rogers (cell provider) issue or a Roaming (cell provider) issue.
I am hoping someone can enlighten me on this behaviour.
Thanks in advance.
MGS
MGS2011 said:
I hope this is in the proper forum and hopefully the question has not been answered yet. I did a search and have found some threads but not this exact question.
So anyway...I have a Rogers (Canada) HTC One M7 running 4.4.2 and HTC Sense 6.0,
Lately I have been roaming in the USA and have incurred roaming charges even though I set my Data Roaming setting to Off (no check mark). It seems to only happen when I am roaming. Basically this is what happens.
The Data Roaming Setting is set to Off all the time.
I go into the US and lose data connection as I start to roam. This is fine.
If I turn off Mobile Data and then later turn it back on, I get the "You are roaming and incur charges..." pop up box.
The only options are OK or Cancel
Choosing Cancel keeps the Mobile Data Off
Choosing OK turns ON Mobile Data and the Data Roaming setting is suddenly set to ON (there is a check mark where previously there wasn't) and I now incur charges.
Is this by design? Shouldn't the Data Roaming setting stay off, even if you turn on/off the Mobile Data? I am not sure if this is a Phone Issue, and Android issue (OS or corrupted OS) or a Rogers (cell provider) issue or a Roaming (cell provider) issue.
I am hoping someone can enlighten me on this behaviour.
Thanks in advance.
MGS
Click to expand...
Click to collapse
I guess i am having the reverse effect to your problem, my data roaming keeps switching off.
With data roaming enabled, and network selection on automatic. Whenever I am in a no signal area with my home network provider, the phone should automatically roam on a partner network for mobile network and data network. (I can confirm this works when tested on a few Samsung phones). However on my HTC, the mobile network roaming works (calls and text) but data roaming does not work. It connects momentarily then disconnects and stays disconnected and wont re-enable until a reboot. If i manually select a network (either home network or roaming network) and then restart the phone, the mobile data will stay enabled. But as soon as there is a switch between home or roaming network then the data disconnects and cant reconnect until the next reboot.
I was wondering if this could be a hardware limitation or software limitation.
vicyang85 said:
I guess i am having the reverse effect to your problem, my data roaming keeps switching off.
With data roaming enabled, and network selection on automatic. Whenever I am in a no signal area with my home network provider, the phone should automatically roam on a partner network for mobile network and data network. (I can confirm this works when tested on a few Samsung phones). However on my HTC, the mobile network roaming works (calls and text) but data roaming does not work. It connects momentarily then disconnects and stays disconnected and wont re-enable until a reboot. If i manually select a network (either home network or roaming network) and then restart the phone, the mobile data will stay enabled. But as soon as there is a switch between home or roaming network then the data disconnects and cant reconnect until the next reboot.
I was wondering if this could be a hardware limitation or software limitation.
Click to expand...
Click to collapse
I personally don't think it is a hardware issue, although it may be a software bug and an issue with the roaming provider. I believe that the data roaming setting gets "reset" once the phone mobile data setting is turned back on on a foreign network. I think that the HTC "sees" a foreign network and does not know what to do so it either gets the setting from the roaming provider or just defaults to a set setting.
In my case, I had lots of support calls with Rogers and according to them, my data roaming settings are probably resetting based on the roaming provider when the mobile data setting is turned back on. I actually video recorded what happens and sent it to Rogers when I was roaming. Once they saw it, they told me that any unintentional roaming charges will be credited back.
They did not tell me if it was a software issue or a roaming issue. However, I also tried the same setting using an old iPhone4S and a Samsung Galaxy S3 and both worked fine under the same conditions. That is, the settings were retained.

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