my phone looses signals when i switch to gsm only on network modes. moreover when i go in an area that does not has 3g coverage my phone says not registered on network.
my phone model is SM-G900F
what should i do??
is there a problem in unlocking??
Related
I noticed when i am on a phone call, the E or H(aka data tmobile data) turns off while i am in the call and disappears. Then comes back after i end the call. Does anyone else notice this or know how to make it so it stays on even during a call? Also, when wifi is connected the data service turns off?
First off this is normal when your in a 3bars or less 3G/H area. Your phone will switch 2G while on a call if the 3G signal gets low but it won't switch back until the call is ended. Also on 2G/E you can only do one at time, voice or data. T-Mobile's 2G network is stronger than their current 3G network also.
So if your on a call and the H disappears, this means your phone has switch to 2G/E because your 3G/H signal was low. You won't see E on a call since that would be data and 2G can only do one at a time.
If you want to force 3G/H then goto settings, wireless and networks, mobile networks(I believe) and select WCDMA only under network mode. Please note that if you go into a non 3G/H area you will loose complete signal and your phone won't switch to 2g.
and yes wifi disables mobile data.
Good luck.
ram130 said:
First off this is normal when your in a 3bars or less 3G/H area. Your phone will switch 2G while on a call if the 3G signal gets low but it won't switch back until the call is ended. Also on 2G/E you can only do one at time, voice or data. T-Mobile's 2G network is stronger than their current 3G network also.
So if your on a call and the H disappears, this means your phone has switch to 2G/E because your 3G/H signal was low. You won't see E on a call since that would be data and 2G can only do one at a time.
If you want to force 3G/H then goto settings, wireless and networks, mobile networks(I believe) and select WCDMA only under network mode. Please note that if you go into a non 3G/H area you will loose complete signal and your phone won't switch to 2g.
and yes wifi disables mobile data.
Good luck.
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Okay that makes sense because i only get edge/2g service in my house. Thanks for the response!
Edit: writing it down helped me understand that i actually never activated "2g or 3g or 4g" in elixir2>information>telephony>turn 4g on.
So this was how i got onecall to work properly, in case there's other Norwegians with the same problem.
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In areas where my provider doesn't have reception it uses another provider. My phone then shows that it's roaming and that it has data connection, but in reality it doesn't, i can't access the net. Roaming is activated, the apn of my provider is setup correctly. My provider uses 2g and 3g, the other provider uses 4g as well. When the issue appears it doesn't help to turn on and off airplane mode, doesn't help to turn off and on obile data or to reboot the phone. The problem appears no matter if I choose the other providers network manually or let the phone do it automatically. I tried every possible setting in elixir2 regarding "preferred connection speed - 2g only, 3g onlyn 2g or 3g or 4g and so on.
Anyone with a similar issue on this or a different phone and a possible solution?
I have discovered that my MXP consumes more battery than it needs to over night. This is because, on my night stand, I have strong 3G signal, but weak 4G signal and the phone hangs on to the weak 4G signal consuming unnecessary power, even though I have good WiFi too. If I manually select my 'Preferred network type' to 3G in settings at night, this works, but I can't automate the process of setting 3G or 4G modes.
I discovered the "test mode" (dial #*#*4636*#*# on the phone keypad) and the Phone information section allows you set many more options via the Set preferred network type drop down. I'm unclear what the different options option will achieve. I want the phone to prefer 3G over 4G when the signal is poor. Is there an option for this?
Phone is stock, unrooted, on the EE network in the UK
3G = WCDMA
WCDMA PREFERRED (prefer 3G)
WCDMA ONLY (it will turn off you 4G and 2G.)
thing is if the phone shows it is hanging on to a weak 4g signal you have to remember just because it is displaying a weak signal it is still connected to the stronger 3g signal, it has to be otherwise you wouldn't get calls and texts.
Will have to experiment, but
> WCDMA PREFERRED (prefer 3G)
Does this mean it won't connect to 4G at all if 3G is available?
> if the phone shows it is hanging on to a weak 4g signal you have to remember just because it is displaying a weak signal it is still connected to the stronger 3g signal
Maybe, but my issue is the power consumption when connected to a weak 4G signal
Silly thing is it's not necessary to maintain a connection to 4G at all when WiFi is active, when the only useful benefit of 4G is fast data
If a phone is connected to a weak signal, it will take greater toll on battery.
Try - settings, more, mobile networks and then preferred network type. You can then set 3g?
Richy101 said:
Try - settings, more, mobile networks and then preferred network type. You can then set 3g?
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I want the phone to automatically prefer 3G over 4G when the 4G signal is poor. Doesn't look like this is possible, and I'm stuck with aggressive 'hanging on to' 4G despite heavy power consumption.
Like the title says, the H910 connects to any network when the selected/preferred network is not available or has low signal. It doesn't matter if you manually select a network, if the signal goes very low it will connect to some other network.
The result is that you see "bars" but is not connected to the intended network and you may not realize that you are out-of-service. With an AT&T simcard you cannot select a network but even when traveling with a foreign sim (where the network selection is available) is still doing that.
Also, when is connected to the other network, you don't see the network name and if you try to make a call you get the "emergency calls only" message.
Probably this is considered a safety feature. Is there a way to turn this behavior off? I want my phone to be out-of-service if there is no signal. Especially since the signal at my home is very marginal lately and I would like to know whether I have service or not (at the moment I assume that if I see more than 2 bars that I don't have service).
HI,
Can someone help me to to change the network mode setting to change the mode to either GSM/WCDMA or 4G which will improve cell strength in poor signal areas.
Thanks,
Prafulla Kota
I had to find a solution since my cell signal was constantly dropping switching from 3G/4G/LTE...
With this app, I leave it on 3G/4G, no LTE and everything is now fine. This app should work for you as well
https://forum.xda-developers.com/android/apps-games/widget-toggle-network-type-5-0-xda-t2945406