[Q] Change 3G band to European GSM 900/1800 - T-Mobile Samsung Galaxy S 4

A family member gifted me a Galaxy S4, however it is the SGH-M919. I currently live in Europe and 3G bands in my region are GSM 900/1800. At the moment I can't access 3G and any other type of data for that matter (LTE is not supported here). Is there a way to change T-mobile 950 and 1900 bands to my region ones?
Thanks for taking your time to answer

Sadly not.
Since the radio does not support those frequencies for hsdpa

TheArtiszan said:
Sadly not.
Since the radio does not support those frequencies for hsdpa
Click to expand...
Click to collapse
So there's no way to fix it?

Hello Flex,
I have the same phone "Samsung S4 SGH-M919 - Tmobile" and I live in Hungary, it works fine with me all you have to do is just to switch form WCDMA/GSM to any other option "like GSM only" then back to WCDMA/GSM as a kind of refresh and the 3G will work fine after that, you can find this inside Settings > More Networks > Mobile Networks > Network mode, but unfortunately you have to do this every time you restart your device.
There is also another alternative solution is to reset the Access point names to default, you can find this inside Settings > More Networks > Mobile Networks > Access Point Names.
to be honest I don't know the reason of this error, but try what I described and tell me if it works with you.
Good Luck

Well. I have the exact same phone and have tried several ROMs, either custom or stock and basebands also. Nothing seems to work. The very few users who reported it was working didn't provide much evidence of it. Even Wikipedia says no 3G 900MHz availability for this phone. A simple edit to NV 1877 values won't solve it. I've tried that too.

Related

[Q] GSM network mode

I have noticed people managed to change their network mode to GSM only mode??? How do you that?? I only have 2 options: WCMDA and GSM/WCDMA auto?? Is this thing vary due to your courier?? Currently I am with 3 Australia. I wish I have the option to switch only to GSM. From experience, it can save you a lot of battery.
If you don't have the option then you can't pick it. I don't know if that means it's been removed or if it's simply because 3 don't offer a 2G network service (GSM mode). They probably have some 2G sharing but only in spots without 3G so you still have the GSM/WCDMA auto mode.
That's the best I can offer since I know that's how it works with 3 over here in the UK where they have only their 3G network. The firmware likely has GSM mode disabled for that reason but wait for more to back me up or prove me wrong.
Dyonas said:
If you don't have the option then you can't pick it. I don't know if that means it's been removed or if it's simply because 3 don't offer a 2G network service (GSM mode). They probably have some 2G sharing but only in spots without 3G so you still have the GSM/WCDMA auto mode.
That's the best I can offer since I know that's how it works with 3 over here in the UK where they have only their 3G network. The firmware likely has GSM mode disabled for that reason but wait for more to back me up or prove me wrong.
Click to expand...
Click to collapse
I have a feeling it could be the ROM or firmware that comes with it has it disabled the GSM only option. My Desire HD is the UK version. I am not sure if the other Australian version (from Voda or 3) have that options. With my original desire (and also using 3), I have that GSM only option available. So I dont think it's because 3 doesnt offer 2G network.
Get Advanced settings from Market. You can set it to GSM Only in the phone information menu.
LecterMe said:
Get Advanced settings from Market. You can set it to GSM Only in the phone information menu.
Click to expand...
Click to collapse
Thank you for sharing..yes, it works....but I will try out and see if it does save a lot of battery life.
Type *#*#4636#*#* in the phone dialer to get to testing menu. Under phone info you can set different options that are not otherwise available. No app is required.
Sent from my HTC Desire using Tapatalk
ardsar said:
Type *#*#4636#*#* in the phone dialer to get to testing menu. Under phone info you can set different options that are not otherwise available. No app is required.
Sent from my HTC Desire using Tapatalk
Click to expand...
Click to collapse
Thanks for the info. I have tested both method...both work. But the only problem, how do we set it permanently?? I mean I have noticed every time you reboot the phone, the setting changes?? and I have to set it back to GSM only??
but even if you could technically switch it to gsm, would it actually make a difference? surely if the actual mobile network is pure 3g and no 2g, then switching on the phone wouldn't change a thing? as its not actually possible to use 2g on 3 network?(because they built network from scratch out of 3g is what they always boast about anyway..)
This is strange. I have an unbranded bought sim free HTC sensation here in the UK which Im using on the 3 network and I dont have the option under network to set it to gsm only. This option should be here on an unbranded handset, and its there on my old Desire which was also bought unbranded sim free when Im using that on the 3 network.
Anyone shed any light on this? I know the work arounds mentioned above, but Im more interested in why the option is missing on my handset.
Cheers
PS I know this is the Desire HD thread but its the only topic I could find on this subject so far.
I don't think it matters, just don't even bother with the settings menu for that in the first place. in the Testing menu just set the radio to either GSM Auto (PRL) or GSM Only. GSM gives more talk time.

WCDMA / GSM auto problem

Hello Guys,
I'm experiencing a problem with my Froyo Desire for probably a week now.
The thing is that in certain areas my Phone can not receive calls / sms or such. In other words "GSM services" dont work. 3g though works fine (stable, strong and fast connection) My Provider is T-Mobile.
After quite a lot of testing I was able to isolate the error:
When WCDMA / GSM is chosen by the phone automatically it seems to me as if it didnt switch "back" to register with my provider via GSM when i want to make a call or if someone wants to call me.
When i switch to "GSM only" manually everything works fine but i have no 3g of course.
I also experience this problem only in certain areas. I live in an area where there is really strong HSDPA available (up to 7mbit\s). When i go to other places of my city i still get HSDPA (not as strong) but calls / sms still work.
The last paragraph may be of no importance, i don know.. probably it helps..
I have googled quite much about this problem and also found a few persons experiencing the same issue but nobody was able to come up with a solution.
I would be very thankful if someone could try to figure this out.
schnip
push______
Hi Guys,
... exactly the same problem here!
- same device
- t-mobile germany
- problem exists only in specific cells
ideas or solutions welcome
LordKnut.
gsm only Desire?
I'm having a nightmare with 3g 2g connectivity on my Desire on the three network whilst at home. If I could manually select gsm only this would be fine as I could still call and text and use wi-fi. Unfortunately my options are gsm/wcdpa (or whatever) auto or the 3g only.
can someone please advise if it is possible to select gsm only and if so, how?
many thanks
Can someone please advise me how if possible, to set the desire to gsm only?
VKeane said:
Can someone please advise me how if possible, to set the desire to gsm only?
Click to expand...
Click to collapse
Wireless and network-Mobile network- should be here somewhere.
Thanks, but there is no option for gsm only. It's wcdma only or gsm/wcdma auto. there has to be a way around this.
Similar problem, different version
I've experienced similar problem.
In some area, I can get steady grps signal when I switched GSM only on; but when I switched WCDMA/GSM on, I could get no data connection at all.
I'm using China Unicom's mobile service.
Solution
Hi there,
I've the same issue and I fix it allowing the option GSM/WCDMA Auto in the configuration menu.
Then enter the following code *#*#4636#*#*, select "phone Information" and set preferred network type, set "GSM car (PRL)".
Sorry about my bad english.

[Q] Mobile data is stuck on "G"

I have finally acquired a data plan from my cell provider, and today I set up the APN settings for it. However, whenever I turn off the wifi, I only get the "G" (GPRS) icon in the status bar, with unbelievable slow download/upload speeds.
I just now tried flashing my radio to Radio_12.28e.60.140f_26.04.02.17_M2_SF (Even though I believe I had it before as well), and still I can't get it up to "H" (HSPDA).
I asked a co-worker with a Galaxy S on the same cell provider, and he has HSPDA speed at the same location as I. I also compared his APN settings to mine.
What can cause this error? Should I try flashing a different radio? is the Radio_12.39.60.19_26.06.04.06_M or Radio_12.35d.60.140f_26.06.03.24_M2 better in any way? Are they stable? Is this even the cause of my problem?
I have moved this question from the "Android Development" forum (sorry) - and over there I was told to use
*#*#4636#*#* -> Phone information -> WCDMA preferred
or
*#*#4636#*#* -> Phone information -> GSM auto prl
I tried both options, and when I tried "WCDMA only" I got disconnected, when I use any "preferred" setting, I get "Network type: GPRS".
I checked with my co-worker, and he has "GSM/CDMA auto (PRL)" - trying that I am still stuck on "GPRS" as my network type (He has "HSPDA" on his network type)
Are there any other hidden locations I need to check, in order to finally get HSPDA?
where did you buy it?
there are different "versions" out there with different frequencies.
"G" (GSM) is available in every country..but EDGE, UMTS, HSDPA, etc have different frequencies..that could be a reason why it doesnt work.
DN41
I have ordered my DHD from France, but I believe it came from Spain, according to the English (Spain) and English (Catalan) languages on it.
Where can I see what frequencies it support, and how can I change it/fix it?
I just checked. The DHD is
Europe:
HSPA/WCDMA: 900/2100 MHz
GSM: 850/900/1800/1900 MHz
Both Israel and Spain (And France) is on 2100, so I think it should be OK...
seems that this is not the problem
if it would've been the wrong "revision" with different frequencies, you couldn't have done anything.
seems like a software problem...does other sim cards work?
DN41
Try
Settings, wireless and networks, mobile networks, network modes.
This give options for WCDMA only, GSM only and GSM/WCDMA auto.
Hope this helps.
Sent from my Desire HD using XDA App
you might also want to check you have a 3G capable sim card, if you have only just aquired a data plan
Someone once told me there is no such thing as 3G sim - they are all basically the same, except for the on card memory size (64/32MB, or something like that). I wasn't too sure he was right, but then my cell provider just told me he can give me the data plan, without the need to physically upgrade the sim card. Then again - what do they know?
Do you think it might be the case?
ATGardner said:
Someone once told me there is no such thing as 3G sim - they are all basically the same, except for the on card memory size (64/32MB, or something like that). I wasn't too sure he was right, but then my cell provider just told me he can give me the data plan, without the need to physically upgrade the sim card. Then again - what do they know?
Do you think it might be the case?
Click to expand...
Click to collapse
Yeah, pretty sure there's no 3G SIM card. The SIM card only identifies you to the network.
Yes, it was the sim card. Apparently mine was quite antique... Now it works just fine with H/3G.
Thanks for the help, though.
ATGardner said:
Yes, it was the sim card. Apparently mine was quite antique... Now it works just fine with H/3G.
Thanks for the help, though.
Click to expand...
Click to collapse
it's an orange thing, i couldnt get 3G for ages on orange, turned out they had only recently started providing 3G capable sim cards to PAYG customers lol

[Q] Change preferred network order?

I have a slightly odd requirement, and I wondered if there was any way to fix it:
My carrier has a partnership with a second carrier so we can roam on each others networks for no extra cost.
Where I live, my own carrier only gives me a 2G signal, whereas the other gets 3G. Thing is, I have to physically select the other network. If it's on Automatic, it always "prefers" my own carrier.
This is fine until I'm on the other side of town where the other network gets no signal at all. I then have to manually select my own carrier again!
Is there any way to get it to prefer the other network, or even more ideally, prefer the one that offers the better signal at any given point?
Hi,
a bit of *bump* because I'm struggling with the same issue. I had such option on my previous samsung i780 (oooold) and it worked like a charm.
Currently my mobile operator has 2 roaming partners and if I want to change quickly the preferred order (because in some location it might have better coverage but only there and only for a while) I wold have to switch simcard to the old phone...
Isn't there at even a separate aplication to do that? Does andorid API allow such modification?
Glad I'm not the only one!
Interesting you mention an app to do it... i've not looked actually. If an app can access the list of networks and actually set the phone to use one, then I guess it would be possible. I'll check it out...
to the best of my understanding this is somewhat network option/setting and when suggesting an app I was thinging abount some way to read this setting, modify it and then save/send back to network. It would be a matter of access to the network settings from the API and knowledge how to operate it....
Still investigating this. Looks like the stuff to access the list of networks is in some internal APIs, so a little harder to access. I'll post back when I learn more...
Hey I hope you guys can figure this out have you tried the *#*#4636#*#* command and changed the radio? This will select the most preferred network.. e.g. I'm with Telstra in Australia, the stock radio defaults to 2100MHz but Telstra's HSPA+ is 850Mhz.. so I have to switch to AUS2 radio so it defaults to that every time.
Sent from my Galaxy Nexus using xda premium
@Simmo3D
It's not about the radio band but about the service provider itself.

SGH-T999 Stuck on Edge only

Hello there hope all of you doing well
i had Tmo SGH-T999 S3 which is unlocked but after unlocking its stuck on 2G Network i couldn't use 3g network
i search on google and i found this code :*#197328640#
but i don't know how to use it any way can you help me
wish best times 4 you ^_^
Did you sim-unlock the phone using a code?
I'm also having this issue. I have TMO SGH-T999 S3 sim unlocked before via software (not unlocked via code) and always stays on E (2G). I am thinking that i got messed up after the unlock. My IMEI is still intact btw.
First thing is to double check that your IMEI exactly matches the one on the sticker under the battery. If it checks out, the next best step is to reflash your current or newer stock firmware. (This can be caused by mismatched firmware so by flashing it you will either fix the problem or eliminate it as the cause).
You may also want to check your IMEI against the blacklists online. Especially if you bought it anywhere but a retail store.
Unlocking via code or secret menu should not affect radio bands available in the phone.
WCDMA Band preference
I've checked the WCDMA (3G) band preference available in my T999 S3 and below are the only option available:
The mode preference menu: *#2263#
The information menu: *#197328640#
WCDMA 850
WCDMA 900
WCDMA 1700
WCDMA 1900
WCDMA IMT2000
WCDMA ALL
... and found out my carrier band preference for 3G is 2100. Seems i'm out of luck for 3G data and since this T999 cannot support 4G LTE. I guess i'm stuck on E (2G) data unless i use WiFi.
P.S - Is there a way to add a 1800 or 2100 band preference to WCDMA? :fingers-crossed:
Check the General section in AT&Ts forum. They had something like this if I remember right. They could enable use on a different band, but I don't think it would stick after a reboot. It's been a long time since I looked at it though, so they may have made some more progress on it.
Goodbye 2G (E) data connection
I'm happy to report that my (WCDMA) data speeds is now functional on my SIM network carrier! :good: Loving the speed browsing at last . Although showing as 4G but i know my T999 is not capable of that and not very sure.
Again, thanks DocHoliday777 (I don't know how to link your name) for giving me the idea about the Modem mod. I just followed the guide on the link below and used the NV Data backup from T999L file. So for any users of T999 you can try this mod but please do it at your own risk and don't forget to backup.
I hope this T999L modem mod can be included on the newer root66 baseband/firmware so it can be permanent?
Anyway, just follow the guide on the link below and hit thanks!
http://http://forum.xda-developers.com/showthread.php?t=2344627
P.S - To access the modem setting on my SGH-T999 I've used the code *#0808#. And my final WCDMA setting i chose WCDMA ALL. Goodluck!

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