Hello all.
I bought a Galaxy Core from the Middle East(2 Sim cards) and tried to use it in America through Strait Talk. The phone is working fine and the only problem I have that I can not get 3G just E (EDGE) which is so slow. I put my Sim Card in a Galaxy S III to make sure that the Carrier provides 3G. As soon as I put the Sim Card in Galaxy S III, I immediately got H +. But when I put it back in my Galaxy Core I got E.
My area covers 3G
APN setting is according to Straight Talk instructions
Any idea why ?
I would highly appreciate your answer and help!!
Check network mode - maybe it is set to use only 2G. You can find it under Settings -> More settings -> Mobile Data
rzepa90 said:
Check network mode - maybe it is set to use only 2G. You can find it under Settings -> More settings -> Mobile Data
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Mode is already set to GSM/WCDMA (Auto Mode). I can use this option and GSM Only option. I can not use WCDMA Only option. If I chose WCDMA Only, I will loose the the whole mobile service. Thanks a lot for your help and time.
Ahmed_s said:
Mode is already set to GSM/WCDMA (Auto Mode). I can use this option and GSM Only option. I can not use WCDMA Only option. If I chose WCDMA Only, I will loose the the whole mobile service. Thanks a lot for your help and time.
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Click to collapse
Look You can't use 3G on both SIM at the same time. So choose WCDMA only on the SIM you want to use 3G and use WCDMA/GSM on other SIM and this might not be allowing you to choose "WCDMA only" so better check 2nd SIM connection type.
and yup it is common that network disconnects while change the mode of connection. It will be stable after your option is set.
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PRESS THANKS IF I HELPED!
M_E_G_A_T_R_O_N said:
Look You can't use 3G on both SIM at the same time. So choose WCDMA only on the SIM you want to use 3G and use WCDMA/GSM on other SIM and this might not be allowing you to choose "WCDMA only" so better check 2nd SIM connection type.
and yup it is common that network disconnects while change the mode of connection. It will be stable after your option is set.
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PRESS THANKS IF I HELPED!
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Click to collapse
In fact I am using only one Sim Card. I chose WCDMA Only and restarted the phone. I lost the service again. Thank you Bro.
I too have an issue with my Samsung Galaxy Core prime sm-g360t, my 3g is not working n I've tried LTE/Wcdma/gsm, buh it's still not working
actually ..our galaxy core now became as trash ...even i faced the same problem but there was no fix except an workaround ...the thing is lots of companies has put many features in their "new" SIMs and galaxy core is unable to process those(hardware problem) but if you use an old sim like 2-3 yrs old it will work for you ...after many many googling i had nothing in my hands but solved it by using my old sim ....just take someone's which is old and see if it helps ....
----by an same problem facer
Related
Dial *#*#4636#*#* go into phone information scroll down and choose wcdma only and your done default is GSM/WCDMA auto (PRL)
samsungcaptivates said:
Dial *#*#4636#*#* go into phone information scroll down and choose wcdma only and your done default is GSM/WCDMA auto (PRL)
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Click to collapse
please excuse my ignorance, but what would be the purpose of this?
so that it dosent jump around from 3g 2g if its auto and your not using data it automatically defaults to 2g i think to save battery then switches to 3g oir hsdpa 3.5g or what att calls 4g on demand this keeps it locked on wcdma or 4g to my knowledge
samsungcaptivates said:
so that it dosent jump around from 3g 2g if its auto and your not using data it automatically defaults to 2g i think to save battery then switches to 3g oir hsdpa 3.5g or what att calls 4g on demand this keeps it locked on wcdma or 4g to my knowledge
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Click to collapse
seems like it reverts back to auto after a reboot
This makes the phone work on Verizon, right?
MikeyMike01 said:
This makes the phone work on Verizon, right?
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Click to collapse
See that's what I thought too. ATT = GSM, Verizon/Sprint = CDMA.
kwaalude said:
seems like it reverts back to auto after a reboot
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Click to collapse
Mine goes back to auto as soon as I back out of the menu. Am I doing something wrong by using the back button?
wouldn't this, by locking it, render the phone useless when traveling out of area that support that network?
MikeyMike01 said:
This makes the phone work on Verizon, right?
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Click to collapse
roflmao 10char
vbanh said:
Mine goes back to auto as soon as I back out of the menu. Am I doing something wrong by using the back button?
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Click to collapse
Mine does the same thing. did you figure out how to do it? I have been trying but I couldn't do it
I found this here in the forum someone posted and it worked for me thanks for him.
champoux said:
Here's an alternate method I puzzled out (and then afterward discovered it was already posted in thread 751237. It's a bit faster and has the advantage of surviving flight mode; still gets reset upon restart.
Dial *#*#2263#*#* (mnemonic: *#*#BAND#*#*).
This brings up the Band selection menu which you can also access from the above method by dialing *#*#197328640#*#* then going into DEBUG SCREEN > PHONE CONTROL > NETWORK CONTROL.
Select [3] GSM BAND
Select [1] GSM ALL
Select "Select GSM All Bands"
Menu key > END
To switch back, go to *#*#2263#*#* and select [1] AUTOMATIC > Select GSM &WCDMA All Bands > Menu key > END.
Something else I'm trying out is switching the acquisition order so when it is in "dual" mode, it'll try GSM first. Even so, it will still switch to 3g if there's enough signal. Seems to help keep it on 2G though, when it would otherwise cling to a faint 3g signal with 0-1 bars.
To do that, go into the NETWORK CONTROL menu (see above) then
Select [4] AQUISITION ORDER (yes they misspelled it)
Select [2] GSM->UMTS
Select "Select ACQ_ORDER_GSM_FIRST" (at least they abbreviated it correctly)
Menu key > END
This option does not get reset upon phone restart.
Click to expand...
Click to collapse
I did this and now my sms or text messaging don't work help
I had this happen too, but I didn't use the above method. Don't know what happened, but when I checked message settings, I had no number under "Message Center" did a quick google search and found an ATT number "+13123149810"...now it works again.
Did u call the number
Never mind i fixed it.but now in my network type it says umts is that faster then hsdpa and are there any other number sequences i can use to tweak my phone
I'm getting RAT restricted, which I got on my Vibrant but never my Captivate...
How can I change to show the different bands?
Sent from my Samsung Infuse 4G
wcdma and cdma have nothing to do with each other. wcdma is also known as umts, the base part of 3g (and 4g when hspa+). hspa is a protocol that runs on top of this cell technology providing higher data speeds. gprs (known as edge, and some times called gsm) is 2g. you can turn one or another off so the phone does not seek and connect to both services, which could save battery life. even though ive yet to see my phone find less than 3g/4g in houston, i still dont turn it off, just in case.
The Jack of Clubs said:
wcdma and cdma have nothing to do with each other. wcdma is also known as umts, the base part of 3g (and 4g when hspa+). hspa is a protocol that runs on top of this cell technology providing higher data speeds. gprs (known as edge, and some times called gsm) is 2g. you can turn one or another off so the phone does not seek and connect to both services, which could save battery life. even though ive yet to see my phone find less than 3g/4g in houston, i still dont turn it off, just in case.
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Click to collapse
Thanks, John Madden.
Just got my Nexus 5 today.
However, in Wireless&networks / Mobile networks / Network Mode, I can only set it as 2G or LTE but not 3G.
I am currently on b-mobile in Japan and my Nexus 4 works fine on the network.
Wondering is it some sort of bug of KitKat or is it somewhat related to the SIM card I am using...
seanyseansean said:
Probably the sim card. Mine gives me the option, but another n5 on a different network (o2/UK) doesn't.
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hmm, in my case, I can see the 3G option, just that whenever I select the 3G option, the system would automatically reset it when I navigate to other page.
Is that also the case on your N5 with O2/UK sim card?
On the other hand, I will test my N5 on different sim card tomorrow.
I have the same issue. If I select 4g, the dot stays when I go back, but I only get a full bar 2g connection. If I select 3g and go back, no dot is there but I only get a 2g connection.
Sometimes this was solved in previous handsets by going into the service menu and selecting 3g/2g from there.
MarkMcLovin said:
I have the same issue. If I select 4g, the dot stays when I go back, but I only get a full bar 2g connection. If I select 3g and go back, no dot is there but I only get a 2g connection.
Sometimes this was solved in previous handsets by going into the service menu and selecting 3g/2g from there.
Click to expand...
Click to collapse
I also tried forcing the N5 to use 3G only (by going into the test menu with "*#*#4636#*#*" code) but it still does not work...
OK, so I tried the SIM cards from my colleges, and my N5 can connect to 3G without problem.
It's weird that my SIM card works perfectly well on N4 but NOT N5...
Did not experience such SIM card computability issue before...
httimchen said:
I also tried forcing the N5 to use 3G only (by going into the test menu with "*#*#4636#*#*" code) but it still does not work...
Click to expand...
Click to collapse
Works for me now. Went into that test menu and selected GSM/CDMA auto PRL and I now have 3g. Didn't have to reboot.
3G cannot set for Virgin UK Sim
MarkMcLovin said:
Works for me now. Went into that test menu and selected GSM/CDMA auto PRL and I now have 3g. Didn't have to reboot.
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Click to collapse
I am also having the same problem, purchased the Nexus 5 from carphonewarehouse, can set on 4G or 2G, but when i set to 3G and comeback, it resets. Is that a SIM card problem? I tried to go on testing mode and apply GSM/CDMA auto PRL, that also not working. Is that a KitKat bug?
Same problem on Orange/EE in the UK. I can see the 3G option but phone won't let me change to 3G. Option never sticks. Just stays on 2G. Any ideas? Is this a known bug?
Thanks 101
101_North said:
Same problem on Orange/EE in the UK. I can see the 3G option but phone won't let me change to 3G. Option never sticks. Just stays on 2G. Any ideas? Is this a known bug?
Thanks 101
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Click to collapse
i think it's not a bug.i think it's a hardware problem. i'm having it with vodafone italy.
Same here on T-Mobile Austria :/
Already changed SIM card, without success. Maybe provider related issues?
unexist said:
Same here on T-Mobile Austria :/
Already changed SIM card, without success. Maybe provider related issues?
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Click to collapse
I'm on straight talk TT&T with a new SIM card, but sometimes the network mode doesn't stick. No idea why...
replaced a new 3G SIM, no luck
Just replaced a new 3G SIM Card didn't work the 3G option for me - Chunghwa Telecom Taiwan.
But I can select 2G, and dial number to make a phone call, so the SIM slot seem works fine, maybe just configuration issue?!
And, also I find a very annoying defect of my Nexus 5 32G(White), when hard-reset or flash to Factory Image, my Nexus 5 32G white goes crazy!! it just keep stuck and loop at Google Logo (not even show the 4 circle animation), and won't boot at all!
And I finally find a way to make it boot, by keep trying repeat flash factory, erasing userdata, erasing cache etc. is every had this issue?
EE/T-Mobile (uk) and I can't select 3g either, well I can but it doesn't stick.
I have a similar problem, except I can only select 3G / 4G, and not 2G because the 2G option isn't even displayed!! So infuriating. It still works through the *#*#4636#*#* menu, if I select GSM only then it does indeed go to 2G.
Is it possible that the SIM is somehow telling the phone OS it can't do 2G only? This didn't happen with my old carrier (same phone, only just switched). I have a feeling it's caused by the same thing that makes my phone number show up as 'unknown' now, too.
I have the same issue, I tried two different SIM, on is a Straight Talk sim that is set up to use the ATT network and used a T-Mobile sim card, both were unable to keep 3G as a setting.
My Nexus 5 seems that reluctant to drop from 3g to 2g when 4g is selected i have given up and now just manually select 2g to make sure i have a signal (im out in the sticks a bit). Sat at the PC with 4g selected i get no signal whatsoever, with 2g selected i get an indicated full signal strength.
Why on earth the N5 is so reluctant to dip its toe in the 2g territory when no data is on is beyond me.
I just got the core. I added the correct APN settings, but for some reason this phone only connects to edge. Is there a setting I am missing somewhere?
I am on straight talk, AT&T compatible sim card.
Phone is unlocked.
Any help is appreciated.
You possible don't have 3G selected to use for the simcard you can only use 3G on one simcard at the time in sim settings you can choose which one you want to use
Sent from my GT-I8262 using Tapatalk 4 Beta
Klaasv00k said:
You possible don't have 3G selected to use for the simcard you can only use 3G on one simcard at the time in sim settings you can choose which one you want to use
Sent from my GT-I8262 using Tapatalk 4 Beta
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Click to collapse
So this is likely a settings problem rather than a hardware incompatibility?
Can this phone connect to the AT&T HSPA 850/1900mhz band? or do I need a sim card compatible with the 900/2100mhz band to get HSPA connection?
I looked in the sim card manager but I don't see a setting to enable 3g, only to select which sim's data connection to use. I currently only have one sim in the phone. I may get a 900/2100mhz compatible sim and see if that works.
in a related note, how to I bring up the debug/settings menu from the dialer? its usually *#7268#* or something along those lines but I can't find the specific code for this phone. I have a feeling changing some of those settings may help.
Go to settings/wireless & networks/more settings/mobile networks/(Then depending on the sim you use for data)Network mode/WCDMA only and you are done.
If this helps,please hit Thanks button.
situ1962 said:
Go to settings/wireless & networks/more settings/mobile networks/(Then depending on the sim you use for data)Network mode/WCDMA only and you are done.
If this helps,please hit Thanks button.
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Click to collapse
It won't let me select WCDMA only. When I do it goes back to the previous choice automatically.
Got the L29, so dual sim.
My first sim is for calling and sms, so I only need 2G but I can not set it to only 2G. Just the sim for mobile network (it's sim 2) can set to 2G, 2G/3G, 2G/3G/4G and only 4G.
The problem is 3G is really bad for sim 1 and this drain my battery for nothing, cuz I only need 2G for calling/sms.
I got a lot dual sim devices and this one is just strange in some things.
Regards
This is a problem for me, too
Dosen't work, I call already Huwei and they can not help me. Really bad :/
theres a setting in sim card management under mobile networks. it lets you pick which one gets data.
I can easily set 2G only for sim1 here, dont know what you did? Or your carrier doesnt support this, I mean if there is no 2G in your country, why could you change it to 2G?
Same problem on my mate 9 and my axon 7, seems to be an androidwide problem.
NikiFue said:
Same problem on my mate 9 and my axon 7, seems to be an androidwide problem.
Click to expand...
Click to collapse
Naw, it works perfect with OnePlus 3, 3T, Mi5, Mi5s, Mi5s Plus and all other phones. Set Sim 2 to 2G/3G/4G and Sim 1 only on 2G. Here you can set Internet and this is it, the other sim go 2G/3G.
Gesendet von meinem MI MAX mit Tapatalk
In "settings/more/mobile networks" I can set the preferred network mode for each sim card. Had this when I used it as dual SIM for my work: sim 1 data mode on 2g, sim 2 on 4g. Works perfectly, even on 2 completely different providers.
djmvt said:
I can set the preferred network mode for each sim card. .
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Click to collapse
I don't believe. When mobile data is default set to sim 1, just to sim 1 can be selected preffered network mode.
In my case: sim 2 -default mobile data- can be set to 2g only/auto 2g3g...evrything. Sim 1 switched automatically to 2g/3g/lte auto-can not be set preffered network mode.
If i switch default mobile data to sim 1, preffered network mode can be modified in sim 1, but not for sim 2, and sim 2 switched auto to 2g/3g/lte auto.
I want like this:
1. sim1 default data-3g/4g/lte
2. sim 2---2g only. But this is not possible because just in this case, sim 2 jump into 2g/3g auto.
djmvt said:
In "settings/more/mobile networks" I can set the preferred network mode for each sim card. Had this when I used it as dual SIM for my work: sim 1 data mode on 2g, sim 2 on 4g. Works perfectly, even on 2 completely different providers.
Click to expand...
Click to collapse
Nope... Just the sim which is for mobile network. If I change sim 1 to mobile network, I can set to only 2G but the other one will be 2G/3G
Storm198025 said:
I don't believe. When mobile data is default set to sim 1, just to sim 1 can be selected preffered network mode.
In my case: sim 2 -default mobile data- can be set to 2g only/auto 2g3g...evrything. Sim 1 switched automatically to 2g/3g/lte auto-can not be set preffered network mode.
If i switch default mobile data to sim 1, preffered network mode can be modified in sim 1, but not for sim 2, and sim 2 switched auto to 2g/3g/lte auto.
I want like this:
1. sim1 default data-3g/4g/lte
2. sim 2---2g only. But this is not possible because just in this case, sim 2 jump into 2g/3g auto.
Click to expand...
Click to collapse
Ah I see what you mean! Have been playing with 3 different dual SIM phones last year so got it mixed up. What I did with my Huawei mate 9 when I used dual SIM was: sim 1 set to auto 4g 3g 2g and on sim 2 I overruled the automatic provider search and just picked the 2g network from my provider. It then still mentioned 2g 3g in dual SIM settings but it didn't connect to 3g because I selected a 2g only network.
Is this how you want it?
on my ZTE it's really funny. the setting is available but disabled lol
Fixed By using Tasker [No Root]
I got this issue fixed by using Tasker so probably there might be an ADB command to set the network mode
My fix:
Make a new task -> Press + button -> Mobile Network Type -> Choose required network mode
Note: Will need to enable USB debugging and use the command `adb tcpip 5555` for getting the permissions. Also this might need to be done after ever phone reboot
Hello!
I just bought my OnePlus 6 2 days ago. I've switched from a Xiaomi phone. One problem I am facing with this phone is I cannot individually select the preferred network type or each of my sims.
My Sim-1 (the data sim) is running on 4G-LTE network and Sim-2 is running on 3G-UMTS. I'd like my Sim-2 to run on 2G-GSM ONLY network as it saves battery and GSM signal strength for this particular sim is better in my area. However, neither the Sim & network menu, nor the *#*#4636#*#* code menu lets me select the preferred network type for Sim-2.
The code menu on my Xiaomi allowed me to set them individually. Is there any way the same can be done on OnePlus 6?
Thanks in advance.
Just switch "Mobile data" to SIM-2 and change the preferred network type to 2G and then change "Mobile data" back to SIM-1, this will keep SIM2 in 2G mode
anirudhnyg said:
Just switch "Mobile data" to SIM-2 and change the preferred network type to 2G and then change "Mobile data" back to SIM-1, this will keep SIM2 in 2G mode
Click to expand...
Click to collapse
Thank you very much! Seems to be working
anirudhnyg said:
Just switch "Mobile data" to SIM-2 and change the preferred network type to 2G and then change "Mobile data" back to SIM-1, this will keep SIM2 in 2G mode
Click to expand...
Click to collapse
I saw this last week, changed it on my phone as well, and it worked great!
However, after updating to 5.1.6, I noticed it changed them back. And dual 4g option was disabled by default.
When I keep sim1 on 4g/3g/2g, I switch to sim2, change it to 2g only. Then switch back to sim1 it changed to 3g/2g. I leave it like that, and switch back to sim2, and it also is set to 3g/2g. I have the dual 4g option disabled.
When I enabled the Dual 4G option, I was able to make sim1 4g/3g/2g preferred, change sim2 to 2g. Switch back to sim1 and it stayed with the 4g, switched to sim2 and it was still on 2g.
surface13 said:
I saw this last week, changed it on my phone as well, and it worked great!
However, after updating to 5.1.6, I noticed it changed them back. And dual 4g option was disabled by default.
When I keep sim1 on 4g/3g/2g, I switch to sim2, change it to 2g only. Then switch back to sim1 it changed to 3g/2g. I leave it like that, and switch back to sim2, and it also is set to 3g/2g. I have the dual 4g option disabled.
When I enabled the Dual 4G option, I was able to make sim1 4g/3g/2g preferred, change sim2 to 2g. Switch back to sim1 and it stayed with the 4g, switched to sim2 and it was still on 2g.
Click to expand...
Click to collapse
Thank you so much!
I was almost losing my mind again after the 5.1.6 update as battery consumption had increased because settings got changed automatically. On top of that, the prior method wasn't working. But the method you mentioned for 5.1.6 is working fine now. You just saved my night's sleep!
Thanks again
5.1.9 seems to have broken this. Whatever I have sim1 on, sim2 follows. Anytime find a work around to have 1 sim with 4g/3g/2g and the other 2g only?
How can I do that in OnePlus 5?
Back to the same problem in 5.1.11
UPDATE: I think I've found a workaround. Manually select network operator for the second sim and select the 2G version of the network. Seems to be working for me. Try it and let me know if it works for you.
UPDATE 2: Nevermind. It reverted back to whatever setting I had for sim 1. This is so annoying!
surface13 said:
5.1.9 seems to have broken this. Whatever I have sim1 on, sim2 follows. Anytime find a work around to have 1 sim with 4g/3g/2g and the other 2g only?
Click to expand...
Click to collapse
dark_polok said:
Back to the same problem in 5.1.11
Click to expand...
Click to collapse
dark_polok said:
UPDATE: I think I've found a workaround. Manually select network operator for the second sim and select the 2G version of the network. Seems to be working for me. Try it and let me know if it works for you.
UPDATE 2: Nevermind. It reverted back to whatever setting I had for sim 1. This is so annoying!
Click to expand...
Click to collapse
Seems to be working for me in 5.1.11
Works whether or not I have dual 4g enabled
Thanks it works...