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D850 AT&T 3G not working?

I cant seem to find network selection menu WCDMA, GSM, LTE etc, neither from the menu nor from the hidden menu 3845*, any solution?

sherrypizza said:
I cant seem to find network selection menu WCDMA, GSM, LTE etc, neither from the menu nor from the hidden menu 3845*, any solution?
Click to expand...
Click to collapse
Explain more? What do you mean by 3g not working?
The D850 stock firmware has those options locked out so it's on the default of 2g/3g/LTE.
Make sure your APNs are set correctly. Is the phone on AT&T?

hyelton said:
Explain more? What do you mean by 3g not working?
The D850 stock firmware has those options locked out so it's on the default of 2g/3g/LTE.
Make sure your APNs are set correctly. Is the phone on AT&T?
Click to expand...
Click to collapse
Nope, I'm outside the USA, I had D850 before and never had problem switching networks, but I can't seem to enable WCDMA, its only working on GSM network mode.

sherrypizza said:
Nope, I'm outside the USA, I had D850 before and never had problem switching networks, but I can't seem to enable WCDMA, its only working on GSM network mode.
Click to expand...
Click to collapse
If you had a D850 stock you where never able to change that.. If you ran a custom ROM then you could had.
How do you know its only working on gsm network mode? What does data icon look like? Does it show E or 4G? Causd AT&T calls 3G 4G

hyelton said:
If you had a D850 stock you where never able to change that.. If you ran a custom ROM then you could had.
How do you know its only working on gsm network mode? What does data icon look like? Does it show E or 4G? Causd AT&T calls 3G 4G
Click to expand...
Click to collapse
It shows just E, on my previous D850, it used to show H. Now I got it pre rooted from someone and it had WCDMA option available, but when I selected WCDMA, my network signals disappeared so I flashed official Kitkat using ToT and now back to square one

sherrypizza said:
It shows just E, on my previous D850, it used to show H. Now I got it pre rooted from someone and it had WCDMA option available, but when I selected WCDMA, my network signals disappeared so I flashed official Kitkat using ToT and now back to square one
Click to expand...
Click to collapse
Just root and flash cloudy rom

hyelton said:
Just root and flash cloudy rom
Click to expand...
Click to collapse
Ok I flashed Cloudy 2.2 and got the options to select network mode but as soon as i select WCDMA or any mode other than GSM, my network signals disappears. Now what?

sherrypizza said:
Ok I flashed Cloudy 2.2 and got the options to select network mode but as soon as i select WCDMA or any mode other than GSM, my network signals disappears. Now what?
Click to expand...
Click to collapse
Well that would only mean that the phone is NOT compatible with 3G in your area/country, Your carrier, OR your APN

hyelton said:
Well that would only mean that the phone is NOT compatible with 3G in your area/country, Your carrier, OR your APN
Click to expand...
Click to collapse
By the way I had D850 few months back and 3G worked fine on it, never had this issue. APN is fine, double triple checked everything

sherrypizza said:
Ok I flashed Cloudy 2.2 and got the options to select network mode but as soon as i select WCDMA or any mode other than GSM, my network signals disappears. Now what?
Click to expand...
Click to collapse
sherrypizza said:
By the way I had D850 few months back and 3G worked fine on it, never had this issue. APN is fine, double triple checked everything
Click to expand...
Click to collapse
Like I said so your 100% sure you had a D850 though? This would rely on your carrier or sim card if the phone was indeed a D850 and worked before.

hyelton said:
Like I said so your 100% sure you had a D850 though? This would rely on your carrier or sim card if the phone was indeed a D850 and worked before.
Click to expand...
Click to collapse
Yes I'm dead sure man. This is the strangest thing happening first time ever. I just went to hidden menu 3485#*850# and even tried RAT Selection from LTE menu and selected WCDMA or WCDMA/LTE. 3G worked for like 30 secs and then again signals dropped.

sherrypizza said:
Yes I'm dead sure man. This is the strangest thing happening first time ever. I just went to hidden menu 3485#*850# and even tried RAT Selection from LTE menu and selected WCDMA or WCDMA/LTE. 3G worked for like 30 secs and then again signals dropped.
Click to expand...
Click to collapse
That sounds more like an APN or carrier problem if its doing that, That is odd though.
Have you tried calling up your carrier?

hyelton said:
That sounds more like an APN or carrier problem if its doing that, That is odd though.
Have you tried calling up your carrier?
Click to expand...
Click to collapse
Yes I did, they said its fine. I just put my sim in my colleague's cell phone and 3G worked. Lol. This is getting annoying

i had same problem 3g not working on d850
What can i do i had same issue with cloudy 2.5 and all others rom including stock kitkat
When i select wcdm only my signals disappear.i have othe one d850 its work fine.
What can i do please help me out.
Thanks.

I have the same problem.I even tried unlocking all the network bands but it still doesnt work.Did anyone manage to fix this? I currently have 3g but if i turn off my phone, i may not get it again till next week.

sherrypizza said:
I cant seem to find network selection menu WCDMA, GSM, LTE etc, neither from the menu nor from the hidden menu 3845*, any solution?
Click to expand...
Click to collapse
If you have a stock rooted ROM, the work around to unlock the network selection menu on AT&T D850 is to edit your build.prop file. Under ro.build.target_operator, you want to change AT&T to OPEN.

I have the same problem, when I put the sim in a different phone 3G works but only shows E when I put it back in my D850. I have tried everything around but nothing. When you put the phone on 3G only the network goes off and can't connect until you switch back to gsm/wcdma auto.
Any help guys.
Thanks

Hi, same probs 3g/4g not working yet factory unlocked . Need help ?

Same here also. Need an Urgent help.
only 2g is working on my unlocked d850 phone. in build.prop i changed from ATT to OPEN. It shown modes to select. i selected gsm/wcdma/lte. but there is no use.

krishna13 said:
Same here also. Need an Urgent help.
only 2g is working on my unlocked d850 phone. in build.prop i changed from ATT to OPEN. It shown modes to select. i selected gsm/wcdma/lte. but there is no use.
Click to expand...
Click to collapse
Mung321 said:
Hi, same probs 3g/4g not working yet factory unlocked . Need help ?
Click to expand...
Click to collapse
Are you sure your carrier supports the bands of the D850?

help needed to use 4g only Sim in 3g phone(devs help)

Hi guys recently reliance jio in india launched new 4g service with 4 GB daily free usage for 4 months and unlimited calls for free. they only provide service to 4g lte phones.I know that I will get only 3g speed but that's not a problem. Is there any tricks to use 4g sim on 3g phone. I tried dialing *#*#4636#*#* and selected lte but the menu comes back to wcdma . is it possible to do system changes to trick the phone that it's network is 4g.I use cm 12.1 rooted. If any one can help it will be awesome.

bhavinlanse said:
Hi guys recently reliance jio in india launched new 4g service with 4 GB daily free usage for 4 months and unlimited calls for free. they only provide service to 4g lte phones.I know that I will get only 3g speed but that's not a problem. Is there any tricks to use 4g sim on 3g phone. I tried dialing *#*#4636#*#* and selected lte but the menu comes back to wcdma . is it possible to do system changes to trick the phone that it's network is 4g.I use cm 12.1 rooted. If any one can help it will be awesome.
Click to expand...
Click to collapse
In no way you can change the frequencies if phone's modem doesn't allow you. It's not just faking the icon on status bar.
Sent from my SM-G935F using Tapatalk

bhavinlanse said:
Hi guys recently reliance jio in india launched new 4g service with 4 GB daily free usage for 4 months and unlimited calls for free. they only provide service to 4g lte phones.I know that I will get only 3g speed but that's not a problem. Is there any tricks to use 4g sim on 3g phone. I tried dialing *#*#4636#*#* and selected lte but the menu comes back to wcdma . is it possible to do system changes to trick the phone that it's network is 4g.I use cm 12.1 rooted. If any one can help it will be awesome.
Click to expand...
Click to collapse
hi ....i guess the solution is here
https://forum.xda-developers.com/cr...ad-progress-please-leave-im-updating-t2871269

mrn219 said:
hi ....i guess the solution is here
https://forum.xda-developers.com/cr...ad-progress-please-leave-im-updating-t2871269
Click to expand...
Click to collapse
nice! but works only on qualcomm devices
Sent from my SM-G930F using Tapatalk

mrn219 said:
hi ....i guess the solution is here
https://forum.xda-developers.com/cr...ad-progress-please-leave-im-updating-t2871269
Click to expand...
Click to collapse
It just just unlocks available bands
If your modem does not have LTE band then its useless
It unlocks all bands which the modem supports nothing more

Wuby986 said:
nice! but works only on qualcomm devices
Click to expand...
Click to collapse
right...
The Hard Gamer said:
It just just unlocks available bands
If your modem does not have LTE band then its useless
It unlocks all bands which the modem supports nothing more
Click to expand...
Click to collapse
Idk... maybe the hardware supports it but needs some software changes ... like driver ...
My device (lenovo a3000h) apparently doesn't support 4g but there is "LTE" option in network type in "tablet information "...

I don't think that you can do that.

If the network only uses LTE bands, there's no way you can get '3G speeds' or use your SIM card in a phone that doesn't support LTE.
Sent from my SM-G935F

I tried to find what's the difference between 3g and 4g devices but couldn't find what i wanted ...
maybe both have the same hardware but 4g needs different software and stronger processor ...and they locked it in weak phones to prevent crashes...

how can i unlock my Sprint AQT80 to work on any LTE/CDMA newtork?
plz help and thanks in advanced

Force 3G or LTE Connection

Hello everyone.
I have a question since I've got my s6. Can you force the phone to only connect to LTE or 3G network only? Because in the network option: the only preferences available are:
-4G/3G/2G
-3G/2G
-3G Only
-2G Only
So what I want is an option like 4G/3G because I'm forced to go to the settings every time I want to have 4G because my phone always connect to 2G, so when I am in a poor signal area, I have to put 3G Only.
I don't want a toggle. I just want to change the network preferences. My phone run XtreSoLite and Xposed is installed.
Thanks guys

glehvs said:
Hello everyone.
I have a question since I've got my s6. Can you force the phone to only connect to LTE or 3G network only? Because in the network option: the only preferences available are:
-4G/3G/2G
-3G/2G
-3G Only
-2G Only
So what I want is an option like 4G/3G because I'm forced to go to the settings every time I want to have 4G because my phone always connect to 2G, so when I am in a poor signal area, I have to put 3G Only.
I don't want a toggle. I just want to change the network preferences. My phone run XtreSoLite and Xposed is installed.
Thanks guys
Click to expand...
Click to collapse
OH that's strange, I'm on Tyrannus rom 28.1 and have the option for lte only. Maybe just the rom or your network provider.

sofir786 said:
OH that's strange, I'm on Tyrannus rom 28.1 and have the option for lte only. Maybe just the rom or your network provider.
Click to expand...
Click to collapse
Oh I'm sorry you didn't understand.
I don't want LTE Only. I want a network preference that is "3G and LTE". Not just 3G only or 4G/LTE only.
Thanks

glehvs said:
Oh I'm sorry you didn't understand.
I don't want LTE Only. I want a network preference that is "3G and LTE". Not just 3G only or 4G/LTE only.
Thanks
Click to expand...
Click to collapse
Ah right, tbf I don't think I've seen this option on any phone I've owned.
Reason being if you go into a 2g area and you only have 3g/4g then your phone will not pick up a signal

sofir786 said:
Ah right, tbf I don't think I've seen this option on any phone I've owned.
Reason being if you go into a 2g area and you only have 3g/4g then your phone will not pick up a signal
Click to expand...
Click to collapse
I agree with that but in my city. All the areas are at least cover by 3G connection so I can afford it.
It's juste that my S6 always connect to 2G while they are 3G connection, because when I select "3G only", it works.
My post is there just to ask if anyone know about a tweak that can select only 3G and 4G.
Thanks guys

Note 5 N920P Network help

Hello Guys.
I am atin from india.
I purchased Imported note 5 N920P (sprint) which is gsm and cdma
Now i am unable to use 4g data services on the phone.
when i insert My gsm card in the phone , i see following NETWORK MODES
1. CDMA
2. LTE / CDMA
3. GSM / UMTS
4. AUTOMATIC
I have selected automatic.
my phone gets network and i can make n receive calls.
but can not use my 4g data service.
however 3g service works , and i can see 3g written on top.
where as in my indian note 5 , when i use 3g , its written H+ . and when using 4g , its written 4g on top
But in imported n920p , 4g does not work and 3g works .but does not show h+ sign.. instead , shows 3g sign
Its running on android 6.0 , when i tried to update it , it says "Device has been modified in unauthorized way. try update via smart switch on pc or take to service center"
please help me on using data services on this phone in India and also can anyone guide on why its not getting update?

atin_garg said:
Hello Guys.
I am atin from india.
I purchased Imported note 5 N920P (sprint) which is gsm and cdma
Now i am unable to use 4g data services on the phone.
when i insert My gsm card in the phone , i see following NETWORK MODES
1. CDMA
2. LTE / CDMA
3. GSM / UMTS
4. AUTOMATIC
I have selected automatic.
my phone gets network and i can make n receive calls.
but can not use my 4g data service.
however 3g service works , and i can see 3g written on top.
where as in my indian note 5 , when i use 3g , its written H+ . and when using 4g , its written 4g on top
But in imported n920p , 4g does not work and 3g works .but does not show h+ sign.. instead , shows 3g sign
Its running on android 6.0 , when i tried to update it , it says "Device has been modified in unauthorized way. try update via smart switch on pc or take to service center"
please help me on using data services on this phone in India and also can anyone guide on why its not getting update?
Click to expand...
Click to collapse
You need to find out what lte bands your carrier uses. And make sure they are comptible with the sprint varients lte bands.

TheMadScientist420 said:
You need to find out what lte bands your carrier uses. And make sure they are comptible with the sprint varients lte bands.
Click to expand...
Click to collapse
If what I've read is correct, Sprint Note 5s have the same hardware and radio band capability as the international version. So a hack or something should be possible. But how or what is way beyond me.

sinisin said:
If what I've read is correct, Sprint Note 5s have the same hardware and radio band capability as the international version. So a hack or something should be possible. But how or what is way beyond me.
Click to expand...
Click to collapse
Next would be to make sure your apn is correct

thanks for replying guys.
unauthorized firmware was loaded. so now it gets FRP lock .
Now i want to flash its stock firmware via odin, so i can use it again./
- does flashing it to stock n920P firmware will unlock the device? or it will remian sim unlocked?
- where can i find stock firmware?
TIA

galaxy j3 prime sm-j327t1 only 2g

Hello,
I'Ve Samsung galaxy j3 prime sm-j327t1 matropcs and its shows onlu 2g / E when switching to mobile data. I've 4G enabled SIM. when I did *#0011# it show following attached img. Ive checked the band with *#2263# band set to automatic and hpsa-rel9 sounds like ok but why the hell phone still is on 2g network when enabling data.
Regards

Net_Spy said:
Hello,
I'Ve Samsung galaxy j3 prime sm-j327t1 matropcs and its shows onlu 2g / E when switching to mobile data. I've 4G enabled SIM. when I did *#0011# it show following attached img. Ive checked the band with *#2263# band set to automatic and hpsa-rel9 sounds like ok but why the hell phone still is on 2g network when enabling data.
Regards
Click to expand...
Click to collapse
verify that you are in a location that gets a good signal and that it says you get 4g lte data. then goto connection settings>mobile networks and tap on network mode and choose the option in the screenshot. if it doesnt change do a factory reset. if that fails either get the stock rom from sammobile and flash it with odin or call samsung for a replacement. also verify that theres no upgrades or problems in your area by calling customer care and that your house doesnt limit your signal. my house sometimes limits mine due to it being metal all around. in that case putting your phone in a window fixes it. if you want to avoid that contact tmobile to get a signal booster for your house. update: in the *#2263# menu make sure to choose reset on both LTE and WCDMA in disable band.

thepcwiz101 said:
verify that you are in a location that gets a good signal and that it says you get 4g lte data. then goto connection settings>mobile networks and tap on network mode and choose the option in the screenshot. if it doesnt change do a factory reset. if that fails either get the stock rom from sammobile and flash it with odin or call samsung for a replacement. also verify that theres no upgrades or problems in your area by calling customer care and that your house doesnt limit your signal. my house sometimes limits mine due to it being metal all around. in that case putting your phone in a window fixes it. if you want to avoid that contact tmobile to get a signal booster for your house. update: in the *#2263# menu make sure to choose reset on both LTE and WCDMA in disable band.
Click to expand...
Click to collapse
Well ive tried every thing even re-flashed my device but still same.
Regards
Net_Spy

Net_Spy said:
Well ive tried every thing even re-flashed my device but still same.
Regards
Net_Spy
Click to expand...
Click to collapse
Well you may need to contact samsung for a replacement.

Net_Spy said:
Hello,
I'Ve Samsung galaxy j3 prime sm-j327t1 matropcs and its shows onlu 2g / E when switching to mobile data. I've 4G enabled SIM. when I did *#0011# it show following attached img. Ive checked the band with *#2263# band set to automatic and hpsa-rel9 sounds like ok but why the hell phone still is on 2g network when enabling data.
Regards
Click to expand...
Click to collapse
It looks like we have the same problem,
After I root, unlock the phone.
Insert sim card
It will only show 2G networks.
I'm confused right now.lol
Which country are you in?
Asia? china?

GSM CHEN said:
It looks like we have the same problem,
After I root, unlock the phone.
Insert sim card
It will only show 2G networks.
I'm confused right now.lol
Which country are you in?
Asia? china?
Click to expand...
Click to collapse
Im from asia

Net_Spy said:
Im from asia
Click to expand...
Click to collapse
This phone doesn't have certain bands asia uses. you may need to buy the sm-j327u (samsungs unlocked version of this phone that can work on cdma and gsm carriers.) the sm-j327t1 was designed for the united states.

to fix this problem install (Force Lte Only).apk from play store go to phone information>Network mode>Select WCDMA ONLY!
it will fix the problem as well as you'll have all option enable i the network mode!

Net_Spy said:
Well ive tried every thing even re-flashed my device but still same.
Regards
Net_Spy
Click to expand...
Click to collapse
to fix this problem install (Force Lte Only).apk from play store go to phone information>Network mode>Select WCDMA ONLY! or *#2263# (band selection) wcdma only!
it will fix the problem as well as you'll have all option enable i the network mode!

Need some help here, still stuck on 2G. Though I don't have a T-mobile sim card, the device is said to be unlocked (by @ashyx ), so I want to use my sim card. So what am I supposed to do (I've tried everything listed here so far, no luck)?

MiiJack said:
Need some help here, still stuck on 2G. Though I don't have a T-mobile sim card, the device is said to be unlocked (by @ashyx ), so I want to use my sim card. So what am I supposed to do (I've tried everything listed here so far, no luck)?
Click to expand...
Click to collapse
Which network?

ashyx said:
Which network?
Click to expand...
Click to collapse
Orange, like in the other thread. APN set to default also, just in case.

MiiJack said:
Orange, like in the other thread. APN set to default also, just in case.
Click to expand...
Click to collapse
Have you checked which bands your network supports against the bands your device supports?
You may have to open the network settings and modify the bands if possible.
Also which firmware are you running, you may need to flash the modem from the orange firmware?

Samsung galaxy model J327u build number NRD90M.J327UUEU3ARB1
Hello,
I'Ve Samsung galaxy j3 sm-j327U and its shows onlu 2g / E when switching to mobile data and not working under LTE. I've 4G enabled SIM. when I did *#0011# it show following attached img. Ive tried to check the band with *#2263# & *#*#4636#*#* but not working this code , why the hell phone still is on 2g network when enabling data.
Regards
Smj327u
---------- Post added at 08:38 AM ---------- Previous post was at 08:29 AM ----------
Samsung galaxy model J327u build number NRD90M.J327UUEU3ARB1
Hello,
I'Ve Samsung galaxy j3 sm-j327U and its shows onlu 2g / E when switching to mobile data and not working under LTE. I've 4G enabled SIM. when I did *#0011# it show following attached img. Ive tried to check the band with *#2263# & *#*#4636#*#* but not working this code , why the hell phone still is on 2g network when enabling data.
Regards
Smj327u

Samsunngj327u said:
Hello,
I'Ve Samsung galaxy j3 sm-j327U and its shows onlu 2g / E when switching to mobile data and not working under LTE. I've 4G enabled SIM. when I did *#0011# it show following attached img. Ive tried to check the band with *#2263# & *#*#4636#*#* but not working this code , why the hell phone still is on 2g network when enabling data.
Regards
Smj327u
---------- Post added at 08:38 AM ---------- Previous post was at 08:29 AM ----------
Samsung galaxy model J327u build number NRD90M.J327UUEU3ARB1
Hello,
I'Ve Samsung galaxy j3 sm-j327U and its shows onlu 2g / E when switching to mobile data and not working under LTE. I've 4G enabled SIM. when I did *#0011# it show following attached img. Ive tried to check the band with *#2263# & *#*#4636#*#* but not working this code , why the hell phone still is on 2g network when enabling data.
Regards
Smj327u
Click to expand...
Click to collapse
It probably might be the country your in but i don't know.

Suffering with the same issue
??????? it's been almost 2 years that I'm suffering with the same problem I bought this mobile in June 2017 in LA then I came back to my country in Africa I'm suffering I've never get 3g here but in USA even LTE was running. It's a piss of loss this mobile. We have to ask Samsung to recall it.

How to fix 2G only in j3 prime and any samsung phone 100% working without flash
go youtub and search GSM SOFTWARE POINT
your problem solution in my youtub chanal
goodluck
GSM SOFTWARE POINT

Gsm software point
I dont find this channel on YouTube

I check this solution and it was worked:
*#2263# --> select no 1 band selection --> Select no 4 LTE --> Select no 0 LTE_ALL

reza_gk said:
I check this solution and it was worked:
*#2263# --> select no 1 band selection --> Select no 4 LTE --> Select no 0 LTE_ALL
Click to expand...
Click to collapse
:laugh::laugh::laugh::laugh: it worked 100% thanks Reza_gk you are genius