Database Users

[Q] HELP!! No More Network connection or network Samsung Galaxy S4

Hi there,
I have big problem, i think i f#cked up my s4 because of rooting..
Now i can't call anymore, also no internet/data connection no incoming calls.
Now i have a new SIM card but it still doesnt work, my SIM card can not register on the network provider.
So please who can help me with this? I'am now trying for over a week now but still nothing....
Thnx in advance!

First, check your apn. Then provide more info. What firmware are you on? How did you root it,etc.

BG102 said:
Hi there,
I have big problem, i think i f#cked up my s4 because of rooting..
Now i can't call anymore, also no internet/data connection no incoming calls.
Now i have a new SIM card but it still doesnt work, my SIM card can not register on the network provider.
So please who can help me with this? I'am now trying for over a week now but still nothing....
Thnx in advance!
Click to expand...
Click to collapse
rooting will not kill your network connection. that's something that you did. you need to provide a LOT more information in order to have people help you out,
what ROM are you on, what settings did you change, what mobile carrier are you on, etc. etc. this is a simple fix, but we need to know what caused it first. :good:

jakew02 said:
rooting will not kill your network connection. that's something that you did. you need to provide a LOT more information in order to have people help you out,
what ROM are you on, what settings did you change, what mobile carrier are you on, etc. etc. this is a simple fix, but we need to know what caused it first. :good:
Click to expand...
Click to collapse
Sorry guys im kinda n00b in this scene..
But what i know is this:
Android Jellybean 4.3
Mobile provider: Tele2
And mobile settings i didn't change..
I rooted with Odin and CF Root.
Didn't install any other rom or anything.
From one moment in another the network was gone and till today i cant connect to it.
Please help!!
I need my phone for my work...

In settings, wireless and networks, more, Mobil networks, access point names make sure something is checked there.

BG102 said:
Sorry guys im kinda n00b in this scene..
But what i know is this:
Android Jellybean 4.3
Mobile provider: Tele2
And mobile settings i didn't change..
I rooted with Odin and CF Root.
Didn't install any other rom or anything.
From one moment in another the network was gone and till today i cant connect to it.
Please help!!
I need my phone for my work...
Click to expand...
Click to collapse
Try re adding the APNs for your carrier
Sent from my Nexus 5 using Tapatalk

jakew02 said:
Try re adding the APNs for your carrier
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I also tryed that several times but nothing...
The SIM card can not register to my network has it something to do with the imei??

IMEISV: 01
Kernel version: 3.4.0-1715731
[email protected] #1
Buildnumber:
JSS15J.I9505XXUEMI8
Baseband Version:
I9505XXUEMI8

Never give out your imei number

Well the person above me said it. You just made a mountain out of a mole hill by giving out your imei to everyone on xda. Anyway, have you tried a factory reset? If that doesn't work take it to Best Buy and tell them Kies wrecked havoc on your device and they can re-flash your phone for free. Don't tell them it was your fault.
Sent from my SAMSUNG-SGH-I337

ToastyyX said:
Well the person above me said it. You just made a mountain out of a mole hill by giving out your imei to everyone on xda. Anyway, have you tried a factory reset? If that doesn't work take it to Best Buy and tell them Kies wrecked havoc on your device and they can re-flash your phone for free. Don't tell them it was your fault.
Sent from my SAMSUNG-SGH-I337
Click to expand...
Click to collapse
Don't think that's going to work. Going by his baseband he has an i9505.

jd1639 said:
Don't think that's going to work. Going by his baseband he has an i9505.
Click to expand...
Click to collapse
Yes i have an I9505
But is there a solution to fix this???
Please help!!! I'm really sad that this happend.. can do nothing on my phone

BG102 said:
Yes i have an I9505
But is there a solution to fix this???
Please help!!! I'm really sad that this happend.. can do nothing on my phone
Click to expand...
Click to collapse
I don't know what the problem is but you should be able to flash the stock firmware in Odin and get your phone working again. Double check this in the i9500, i9505, i9505G S4 forum. You can get the stock firmware from sammobile.com

jd1639 said:
Don't think that's going to work. Going by his baseband he has an i9505.
Click to expand...
Click to collapse
Samsung can't re-flash his phone??
Sent from my SAMSUNG-SGH-I337

ToastyyX said:
Samsung can't re-flash his phone??
Sent from my SAMSUNG-SGH-I337
Click to expand...
Click to collapse
He should be able to flash it himself. The i9505 is not locked down like the i337. It's an international version so he probably can't take it to best buy, which is what I was responding to.
Sent from my Nexus 5 using xda app-developers app

Oh duh... Have a point there.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Data enabled, but no internet connection
Hello,
I have the stock rooted i337 (AT&T), running on another provider network. I am aware that i337 is very difficult to do modifications due to the built-in by AT&T vicious locks to prevent using it with other network providers. This is the reason I did not flash ROM, because I am afraid to get my phone bricked and lose it entirely. Recently I subscribed to a data plan from a third party provider and I have 4G in the status line and HSPA in the data type, but I still did not have internet connection when WiFi was disabled, except that my Hotmail somehow worked. No other apps requiring internet worked. I spent a week researching the issue myself as well as working with the provider's tech support, but nothing worked. Two days ago, almost out of despair, I installed a new app called Opera Max, which is developed to route the unencrypted data to their Virtual Private Network in order to compress it and save the data use. As soon as I connected to VPN, all applications started working. I still have to turn Opera Max off when I use WiFi, because it disconnects my WiFi every few minutes, claiming that WiFi signal is too low. (My signal is very strong and no other devices have any issues with WiFi). However, this is a minor problem, considering that Opera Max saved my data plan.
It is still a mystery to me why Hotmail worked, but no other apps and why using Opera Max VPN solved the problem. If anybody has ideas, I will be happy to hear.
I must say that all data settings, including APN are checked, rechecked and correct, so this was not the issue.
Thanks,
Dan

I am also having connection issues after rooting my S4 i9505:
I am on a Telcel (Mexico) which is supposed to support 4G connections... However, ever since I rooted I can only access 2G/GSM networks. I have the official APN network configuration and I have tried two roms but still no luck...
Any advice would be most welcome.

[Q]

I have a n9005 XEO that i bought on ebay. it was working fine for about 5 months now until a few days ago when it just stopped getting cellular signal altogether. no calls, no data, nothing. it seemed to corespond to me using towlroot, installing supersu, and a couple of xposed add-ons, but everything seemed to work fine for a few days before i had this problem. I tried making sure that airplane mode was off, data was enabled, that i had the apn settings correct for my provider (at&t, USA), I even went so far as to restore to factory settings, and then flash another rom (the stock s5 port i found here in the dev forum). still not getting cell signal at all). I went so far as to go to the local at&t store and ask them to place my sim in a known good phone to make sure it has service (and it does and is provisioned properly and i'm paid up). my note sees the sim (i.e. no "sim not found" messages), just plain no service as if i were in a dead zone. the phone hasn't been mishandled, i've tried pulling the battery and putting it back in... I can't think of anything i'm missing here besides trying to flash the modem (which i can't seem to find the stock modem (n9005xxuenc2) or firmware on a site that doesn't take 7 hours to download it from.
can anybody help? (either with a mirror that doesn't suck for the latest stock firmware or latest stock modem, or offer any other suggestions?)

cpgeek said:
I have a n9005 XEO that i bought on ebay. it was working fine for about 5 months now until a few days ago when it just stopped getting cellular signal altogether. no calls, no data, nothing. it seemed to corespond to me using towlroot, installing supersu, and a couple of xposed add-ons, but everything seemed to work fine for a few days before i had this problem. I tried making sure that airplane mode was off, data was enabled, that i had the apn settings correct for my provider (at&t, USA), I even went so far as to restore to factory settings, and then flash another rom (the stock s5 port i found here in the dev forum). still not getting cell signal at all). I went so far as to go to the local at&t store and ask them to place my sim in a known good phone to make sure it has service (and it does and is provisioned properly and i'm paid up). my note sees the sim (i.e. no "sim not found" messages), just plain no service as if i were in a dead zone. the phone hasn't been mishandled, i've tried pulling the battery and putting it back in... I can't think of anything i'm missing here besides trying to flash the modem (which i can't seem to find the stock modem (n9005xxuenc2) or firmware on a site that doesn't take 7 hours to download it from.
can anybody help? (either with a mirror that doesn't suck for the latest stock firmware or latest stock modem, or offer any other suggestions?)
Click to expand...
Click to collapse
Type in *#06# on your dialer. Do you get the same IMEI number as the one behind your battery?

Affirmative. The IMEI numbers match

cpgeek said:
Affirmative. The IMEI numbers match
Click to expand...
Click to collapse
Tell me your model number, country and if you know the region type it out.
I'll download it from Sammobile and mirror it to your through MEGA.
Type in *#1234# and tell me the values.

nicholaschum said:
Tell me your model number, country and if you know the region type it out.
I'll download it from Sammobile and mirror it to your through MEGA.
Type in *#1234# and tell me the values.
Click to expand...
Click to collapse
it's an n9005 xeo from poland, I'm in the USA on AT&T. I downloaded the firmware successfully from sammobile and installed it with odin 3.07 which seemed to go successfully but I still get absolutely no cellular
I've tried using the default apn, tried using at&t's apn settings (which i remember having to do last time before i got data but i'd always been able to make calls and that's not working right now either), no effect...
anybody have any ideas?

cpgeek said:
it's an n9005 xeo from poland, I'm in the USA on AT&T. I downloaded the firmware successfully from sammobile and installed it with odin 3.07 which seemed to go successfully but I still get absolutely no cellular
I've tried using the default apn, tried using at&t's apn settings (which i remember having to do last time before i got data but i'd always been able to make calls and that's not working right now either), no effect...
anybody have any ideas?
Click to expand...
Click to collapse
So you're saying it worked perfectly for 5 months, and then suddenly it went haywire on you? Did you do any major changes before it happened?

I also tried flashing the XXUENC2 and ZHUENB5 modems from here with no effect.
still looking for a solution

nicholaschum said:
So you're saying it worked perfectly for 5 months, and then suddenly it went haywire on you? Did you do any major changes before it happened?
Click to expand...
Click to collapse
as i noted I rooted it with towlroot, installed supersu, and a coupe of xposed add-ons. but everything was working afterwards for about a week before i had this problem. otherwise, I was using my phone one night, i wake up, and see that i have no service. it was after a big storm so i figured they were doing service on the tower, until my work iphone rings (on the same network) and that feeling of dread set in so i went about trying to diagnose the problem and here i am.

cpgeek said:
as i noted I rooted it with towlroot, installed supersu, and a coupe of xposed add-ons. but everything was working afterwards for about a week before i had this problem. otherwise, I was using my phone one night, i wake up, and see that i have no service. it was after a big storm so i figured they were doing service on the tower, until my work iphone rings (on the same network) and that feeling of dread set in so i went about trying to diagnose the problem and here i am.
Click to expand...
Click to collapse
despite having done nothing unusual to the hardware, I've flashed modems (stock and otherwise), i've flashed roms (stock and otherwise) and it doesn't appear to effect my situation, so I can't help but think that this could be hardware related... I'm stuck and sad.

anyone have any other great ideas for me or am I buying another one?

cpgeek said:
anyone have any other great ideas for me or am I buying another one?
Click to expand...
Click to collapse
I think the phone could be blacklisted, confirm it via at&t/reputable website with the imei #.

ddogishere said:
I think the phone could be blacklisted, confirm it via at&t/reputable website with the imei #.
Click to expand...
Click to collapse
even if it were blacklisted, it should still allow me to place 911 calls and the like. it should work like a deactivated phone. it's not. just in case i was wrong, I also verified the imei on swappa and they confirm that it is indeed NOT blacklisted.
also i'm not sure why it would be blacklisted to begin with. it was working one day then i went to use it the next and bam, not working. i don't get it.

cpgeek said:
anyone have any other great ideas for me or am I buying another one?
Click to expand...
Click to collapse
Sounds like your IMEI got tampered or stolen and got blacklisted. Usually this would happen, especially when buying phones online.

nicholaschum said:
Sounds like your IMEI got tampered or stolen and got blacklisted. Usually this would happen, especially when buying phones online.
Click to expand...
Click to collapse
But I've used several reputable services to check my IMEI number and they all say that my imei is in good standing... I don't get it. besides, what causes an imei to be blacklisted to begin with? - I wasn't trying to circumvent any security features, had no malware, no reason at all for an accounts admin to want to get me off the network. my account is in good standing, and my sim still works in an old iphone that i've got (i'm using that until i can sort out my regular phone situation).

cpgeek said:
But I've used several reputable services to check my IMEI number and they all say that my imei is in good standing... I don't get it. besides, what causes an imei to be blacklisted to begin with? - I wasn't trying to circumvent any security features, had no malware, no reason at all for an accounts admin to want to get me off the network. my account is in good standing, and my sim still works in an old iphone that i've got (i'm using that until i can sort out my regular phone situation).
Click to expand...
Click to collapse
The fact that someone had the phone with them can easily get it stolen. It's a plain 15 digit number, easily forgeable just by looking at the box, and since it has no authentication, people can just get your phone blacklisted by placing it on a defunct phone that hacks the network (or something).

well tonight i took it apart to see if there was a problem with the antenna cables, connections to the various peripheral devices and such and alas, no effect... still does exactly the same thing after field stripping the unit and resenting everything. if it's hardware, it's nothing i can tell...
I was also able to generate a .pit file, grab the latest build for my csc from sammobile (takes forever) and did a nand erase in odin with the pit and the downloaded stock rom... everything went great, but it got me to exactly the same place i'm at... working phone, no service. I have no money, but i think i'm going to just end up ebaying it and buying an s3 until i can save up enough for a note 4 or nexus 6... for now, i'm on a crappy old iphone 4 with a broken lock button, but that's another thread.

well it's been about a month and a half since i've had a decent phone (my 3 phones ago iphone 4 really doesn't cut it). after giving it some thought, I think i might buy a broken-screen sm-n900t, and swap it's mainboard into my phone. hardware-wise i believe they are exactly the same, it should be easily rooted with unlocked baseband,it would give me LTE on at&t, and it should be easily unlocked so i can use it on at&t... it should also only cost me 1/8 the cost of a good condition used n900t. ($60 or so on ebay i hope?).
still pretty sad that such a nice phone quit on me so quickly

cpgeek said:
well it's been about a month and a half since i've had a decent phone (my 3 phones ago iphone 4 really doesn't cut it). after giving it some thought, I think i might buy a broken-screen sm-n900t, and swap it's mainboard into my phone. hardware-wise i believe they are exactly the same, it should be easily rooted with unlocked baseband,it would give me LTE on at&t, and it should be easily unlocked so i can use it on at&t... it should also only cost me 1/8 the cost of a good condition used n900t. ($60 or so on ebay i hope?).
still pretty sad that such a nice phone quit on me so quickly
Click to expand...
Click to collapse
Why don't you swap the N9005's screen onto the N900T and keep it like that? The N900T if I can recall, has the most bands available worldwide and if you're already replacing it, just enjoy the vast amount of customizations and potential the N900T has.

Did you pursue all avenue including Samsung service/repair centre or even Samsung line enquiry to confirm it's not blacklisted?

nicholaschum said:
Why don't you swap the N9005's screen onto the N900T and keep it like that? The N900T if I can recall, has the most bands available worldwide and if you're already replacing it, just enjoy the vast amount of customizations and potential the N900T has.
Click to expand...
Click to collapse
that's basically the plan, except the motherboard lives on the display side of things, so it would be swapping in a new motherboard (n900t). we both describe the same plan of action.

[Q] L720 Unlocked with T-mobile rom, but text sometimes take long

So I unlocked my S4 L720 by Using this ==== > " http://forum.xda-developers.com/showthread.php?t=2703955 " I am using it for T-mobile. Once it was unlocked i flashed back to NAE I have signal I have 4G/H+, but kept having issues with different roms. On every rom I have used either from sprint s4 or tmobile s4, 2 out of every 10 text that I send say fail, then I click resend and it says sending. Also I sometimes wouldn't be able to make a phone call, as if their wasnt service, but i could clearly see full bars and H+ signal. Finally after about a minute or so it'll send. With every sprint rom I had the S4 didn't receive mms, but I could send them. Then with some tmobile roms when i would make a call it wouldn't be able to hang up, but I would be able to send/receive mms. I re-did the whole unlock process 3 times and still the samething. Anyone else had this problem? I have honestly tried about 10 different roms from sprint/tmobile. Im currently about to try a stock tmobile base rom DEODEX see if that'll help. Im not exactly a noob, but im also not smart developer. Any help would be appreciated thanks everyone!

Sounds like an APN issue. What APN settings have you been using?

Solved- Not receiving in-bound calls

Tl;dr Settings--> mobile networks --> mobile data --> untick Enhanced LTE Services (This only pertains to AT&T video calls and does NOT disable LTE for data)
After switching firmware from SM-G930A (AT&T) to G930U (unlocked) I initially noticed fast charging wasn't working properly. A few days after cycling the battery a few times I noticed my battery was dwindling hardcore without touching the phone so I decided I'd revert back to stock. After doing so and getting all of my apps and settings to my liking I noticed that no calls were coming through. Text was working, data was working and I could make phone calls out with no problem, no calls would come through so after fiddling around with the settings, factory resetting my phone twice, using odin to flash the files again, un-seating and re-seating my SIM card, I finally caved and called AT&T. They offered the resolution above and thought I'd pass the knowledge around and save others from the head ache I endured. Apparently they are having trouble with video call settings in some devices and mine happened to be one of them. Cheers
Sent from my SAMSUNG-SM-G930A using Tapatalk

After flashing to the unlocked U firmware I was not able to receive calls as well until they read registered me back to the network but now I cannot get voice over LTE calls I have done everything I can to return to stock I already have done it but there's no LTE voice calls anymore
Sent from my SAMSUNG-SM-G930A using XDA-Developers mobile app

I had the issue of no incoming calls when switching BACK TO the A fw from the U fw. Went back to the U and it's been fine. Fast charging is working fine.

@joe3681 what network are u on and do you have volte working

Check the stock att 935A fw thread. There is a fix for this problem by najoor. It will work on the 930 also.
Sent from my VK815 using XDA-Developers mobile app

Skizzy034 said:
Check the stock att 935A fw thread. There is a fix for this problem by najoor. It will work on the 930 also.
Sent from my VK815 using XDA-Developers mobile app
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=67749678&postcount=173
This is the fix he's talking about, if anyone can't find it.

tlopez1973 said:
@joe3681 what network are u on and do you have volte working
Click to expand...
Click to collapse
I'm on att. I'm back on stock firmware now, nice update came out I wanted to take advantage of

Verizon S8 with tmobile SIM - Cannot run system update

Neither on wifi nor cellular will it check for update. I get the error "sorry, we are having trouble authenticating your device"
Any idea how to fix this ?

wondering the same :/ anyone have anything?

see my post here. besides flashing the t-mobile ummm rom I guess over it, you won't be able to update. I've tried samsung and t-mobile and the only thing that will work besides that is to borrow a sim from a friend and use that... https://forum.xda-developers.com/galaxy-s8/help/best-buy-screw-t3594359/page2

try it today. it should work. the servers were having issues last night and this morning.

lotreaglesfan said:
try it today. it should work. the servers were having issues last night and this morning.
Click to expand...
Click to collapse
will not work because system updates are coming from carrier and having a tmobile sim in a verizon phone means verizon will not allow you to connect to their update server...

insomnia said:
will not work because system updates are coming from carrier and having a tmobile sim in a verizon phone means verizon will not allow you to connect to their update server...
Click to expand...
Click to collapse
Thats not the case. I am using vzw GS8 on att and I receive updates fine

Well I'm confused then. I was able to do the last update with a t-mobile Sim in the phone? Right now when I try checking for updates it errors out saying it couldn't be authenticated. Anyone have any clue?

Hope I can help you!
How to update your system if you're not using the carrier from your S8(+) version.

insomnia said:
Neither on wifi nor cellular will it check for update. I get the error "sorry, we are having trouble authenticating your device"
Any idea how to fix this ?
Click to expand...
Click to collapse
you wont be able to updated through wifi or LTE unless you use a verizon SIM but you can do it easily using your computer and samsung smart switch.

eoga said:
you wont be able to updated through wifi or LTE unless you use a verizon SIM but you can do it easily using your computer and samsung smart switch.
Click to expand...
Click to collapse
Are you able to update using your computer?

insomnia said:
Neither on wifi nor cellular will it check for update. I get the error "sorry, we are having trouble authenticating your device"
Any idea how to fix this ?
Click to expand...
Click to collapse
Try to get at least an inactivated Verizon sim card from any Verizon store or you can also try a normal working Verizon sim. I had AT&T Galaxy S5 and it needed the carrier's sim card to even check for update. I took the sim, put it in, checked for update and was able to install it.

Fix to your issue
Hey guys so I do also share the same situation, I have a Verizon s8+ yet I have T-Mobile One as my coverage
Because it's not authenticated as a Verizon provided account it simply won't update
Now.. the solution to updating isn't directly on your device.
It's within the Samsung Smart switch App for either Mac or windows, you can run an update through there with little to no problems at all and finally keep your device up to date without having to return it for an unlocked one.
Just a brief note regarding the smart switch App, keep in mind that sometimes the update will freeze at a certain percentage on the computer so just be sure to close the app out only if your Samsung device hasn't received the green upload screen yet.
Hopefully this helps out alot of you guys ?
Best regards

lotreaglesfan said:
see my post here. besides flashing the t-mobile ummm rom I guess over it, you won't be able to update. I've tried samsung and t-mobile and the only thing that will work besides that is to borrow a sim from a friend and use that... https://forum.xda-developers.com/galaxy-s8/help/best-buy-screw-t3594359/page2
Click to expand...
Click to collapse
I'd like to flash mine to t mobile, I'm begging you to help me with this!!!
Sent from my SM-G955U using Tapatalk

I've seen a bunch of info on the forums on how to flash the T-Mo ROM on an s8 - as well as flashing the Samsung Unlocked ROM on the s8 but frankly, almost all the threads are from back at the phone launch - and it is unclear to me which roms & programs to search for.
In a similar vein - I'm a noob to the whole process using oden - which I think is what i would need to use. I have experience from years ago running cyanogen mods on a nook tablet and messing with windows phones - but nothing recent and things have changed a lot.
I've read conflicting reports throughout the forums on doing this...
I'm running a VZW Branded (but it's now "unlocked")
Model: s8 SM-G-950U
Build #: NRD90M.G950USQS2BQL1
Baseband #: G950USQS2BQL1
What I'm looking for (really the right word is "NEED"):
Access to lower 700 A block (full band 12 use)
Ability to get OTA Updates
Mobile Hotspot Functionality
WiFi Calling
VoLTE
Bixby
If I could have these all running the Samsung Unlocked ROM - then that would be preferred...
If not - I would want to flash the T-Mobile ROM.
I need to know ASAP as I only have 14days from today (2/14/18) to figure this out or go back to VZW
Many thanks!
~chris