need help.. - Networking

I have a galaxy s4 gti9505 . It cannot connect to 3g service .gsm is working fine but no 3g . When i select wcdma only mode it removes all signal and a circle with a line
Apears. ... imei is ok same as on the back only 3g problem ... sorry for bad english .please help me any body

Hello I have a sam.galaxy s4 sch-R970 with straight talk I bought this phone used but before I could get 4g and it wasn't roaming and now with this phone its in 3g and its roaming any ideas. I'm lost when it comes to this stuff but thanks

Related

[Q] Only wcdma on i9505, no gsm signal

Hello xda ,
I have a problem with my i9505 .
I have no gsm signal.
When i choose "GSM only" it says "emergency calls only" , thus in the areas without 3g , my fathers old brick is better than my s4.
If i chose "WCDMA only" it works in the areas with 3g .
If i choose "WCDMA/GSM" if the 3g signal is weak , it search for 2g... doesn't find so i get again "emergency calls only"
If i choose "LTE/ WCDMA / GSM" and i try to call somebody it brings up the calling screen but nothing happens until i get " line busy "
I tried a lot of different modems with no luck , my google skills failed me too ... so here i am .
Any sugestions ?
PS. No waranty here. So " send it to samsung " is not what i'm looking for .
Thanks for reading.
hi
i have same problem,
if you find solution please tell me
i have GSM full bar, but no calls incoming or outcoming
in WCDMA weak signal, but everything is working
Samsung Galaxy S4 i9505
please help

Please help me enable lte and gsm on sprint l720

hi everyone Please help me enabling lte and gsm on sprint l720.i have a sprint l720 it is working good with calls and sms but i am unable to use 3g or 4g or even lte on it.i have all services enabled in my area btw m from Lahore,Pakistan.m using waird lte sim card.it works with 2g network but when i change it to lte my phone restarts and i get no service.no calls,no sms no lte.please help me fixing that.

[Q] Sm-900i 4g Doesn`t work

Hello i need help about 4g.
i Bought sm-900i from u.s this summer. i`ve been told that this device has 4g lte,(also on spesifications in internet and back cover has lte logo) but i never saw that option and cant use it why ?
Right now im living in lithuania and the operator i use provides 4g from 800 , 2100 ,2600 only 800 is not supported by my device.
On options in the phone when i go into the settings in phone under mobile i cant see any LTE on network mode only 2g and 3g which i attached the photo what may be the problem please help.
Can someone please help ?
help please
If that model S5 100% supports 4G, then the problem is with your carrier/provider or coverage

samsung j5 j500f no service issue

hi please help me i m using Samsung galaxy j5 j500f duos i m from pakistan and using zong and ufone in that mobile.. its 4g supported and zong 4g is showing NO SERVICE or not registered on network i cant make a call or use sms service but when i turn mobile data on to use internet i got 4G LTE and can use internet without signals IMEI is ok ufone works only in GSM mode only and zong dont work in any mode i.e LTE/WCDMA/GSM.. without other sim zong dont work and it only works in GSM mode only when ufone is set to LTE/WCDMA/GSM... but in that case ufone show NO SERVICE i reset it hardware format and watched youtube also but ALL invain can anybody help me
Have you tried to change nertwork mode to WCDMA only or GSM...or both WCDMA and GSM...????
Hi bro I am from Pakistan too so I research on it (couz I got 4g phone as well) I tried zong and didn't received signal so what I found is that these networks are on limited bands to work u need both phone and network to be same frequency supported to work 4g (and don't ask me how to do it couz I don't know either) try using warid (if possible) 4g it probably gonna work (not sure) or maybe you are not in 4g coverage area....

Need help I can't use 3G internet on Samsung Galaxy s4 gti 9515

Hello for all.
I have problem and need help
I have Samsung Galaxy s4 gti 9515
Its open 2g internet only cant open 3g internet
When I set wcdma. The GSM cut and can't make calls or any thing
Please help me
Does the phone support your carrier's 3g frequencies?
Phone shows the correct imei # when you dial *#06#?

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