[Q] Galaxy s4 no 4g connection - General Questions and Answers

(AT&T GS4 SGH-1337) My sim card has not been working for a while and i just got it fixed. now i have bars but it does not say 4g. Also i don't know if this broke it but i rooted and when i boot on my s4 is says "Samsung custom" and has a unlocked lock. how can i get rid of all parts of that root/rom? i already factory reset twice. So can anyone tell me where the option to turn back on 4g or something is or how to factory reset EVERYTHING. thanks.

kreisler123 said:
(AT&T GS4 SGH-1337) My sim card has not been working for a while and i just got it fixed. now i have bars but it does not say 4g. Also i don't know if this broke it but i rooted and when i boot on my s4 is says "Samsung custom" and has a unlocked lock. how can i get rid of all parts of that root/rom? i already factory reset twice. So can anyone tell me where the option to turn back on 4g or something is or how to factory reset EVERYTHING. thanks.
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Hi, have you tried contacting your network carrier? could be something as simple as that

yes
Yes i have. I went to the at&t store and the employee could not figure it out either and he seemed very credible.

Related

[Q] Nexus S Wind Mobile help!

I just bought a Nexus S off of someone, who assured me it works with windmobile (in Canada). I pop in my sim card, and it shows 302490 (Wind tower) but whenever I click on it, it'll always say unable to connect at this time.
I did a full factory reset, and multiple reboots, and multiple sim cards (all wind).
Btw, it has an unlocked padlock on the bootup screen, but the person I bought it off of says its never been rooted. Don't know what to make of that.
Someone please help!
I think the unlocked padlock means the bootloader is unlocked. I was having a similar problem to you. Try this link out. It helped me.
http://forum.xda-developers.com/showthread.php?t=876583
Have you changed the network setting for Wind Mobile.
Sent from my Sexy Nexus S, eh?
if it says I9020T on the back under the battery then it is compatible if it says I9020A then its not compatible, simple as that

Forced Branding?

MASSIVE EDIT:
Hey Guys,
So i picked up the Motorola Razr HD LTE from fido today. The phone was purchased from a company that sells both rogers and fido (sister companies).
When i posted last night, i noticed after i put the fido sim in SIM CONFIGURATION popped up and told me all info off the phone will be deleted etc...
Last time it basically branded my phone to fido. Got a fido boot screen, all these fido apps i can't remove.
UPDATE:
I got them to replace the phone from yesterday, and this time around i purchased a unlock code, put in a MTS sim ( that carrier don't have the motorola phone) and its working but still asks me for SIM CONFIGURATION, im just going to keep pushing cancel.
Is there remove sim configurator and keep stock factory ICS (no carrier bloatware, nothing!)?
Updated, Anyone get one of these Rogers/Fido Phones?
I got one. I bought my phone from someone who supposedly got it from Fido, but when I checked the version it was the RCI version and had the versions in the screenshot. After I popped in my Rogers sim it got Rogers branded for me and reset the configuration/factory reset my phone (I wanted to see the new features of smart actions, so I didn't lose any data).
Afterward, I popped in my coworkers BELL Sim card to enter my unlock code (I always buy unlock codes as soon as I get the phone... You never know) and noticed the configuration didn't reset.
Look at the screenshot for my radio.
I'm not rooted or modded at all.
Sent from my Nexus 7 using Tapatalk 2
danifunker said:
I got one. I bought my phone from someone who supposedly got it from Fido, but when I checked the version it was the RCI version and had the versions in the screenshot. After I popped in my Rogers sim it got Rogers branded for me and reset the configuration/factory reset my phone (I wanted to see the new features of smart actions, so I didn't lose any data).
Afterward, I popped in my coworkers BELL Sim card to enter my unlock code (I always buy unlock codes as soon as I get the phone... You never know) and noticed the configuration didn't reset.
Look at the screenshot for my radio.
I'm not rooted or modded at all.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
But when i restored with my the other phone i got for that one day, it wouldn't let me reconfigure the sim it just stayed fido, with the splash screen and bloat.
I tried to use the RAZR HD Root tool and restore from there and the the same thing, i just keep hitting cancel everytime i boot up, i just wish i could get rid of that sim configuration message without rooting. (its not my phone my sisters so she wants to keep the warranty).
Danielk91 said:
But when i restored with my the other phone i got for that one day, it wouldn't let me reconfigure the sim it just stayed fido, with the splash screen and bloat.
I tried to use the RAZR HD Root tool and restore from there and the the same thing, i just keep hitting cancel everytime i boot up, i just wish i could get rid of that sim configuration message without rooting. (its not my phone my sisters so she wants to keep the warranty).
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Click to collapse
Don't worry about it. The bloat can all be disabled (in the all programs menu puss and hold on the program you want to disable then choose app info and stop then disable the app). I also found the Rogers bloat didn't really slow down the phone much either (I came from a Verizon phone....)
Sent from my XT925 using Tapatalk 2
danifunker said:
Don't worry about it. The bloat can all be disabled (in the all programs menu puss and hold on the program you want to disable then choose app info and stop then disable the app). I also found the Rogers bloat didn't really slow down the phone much either (I came from a Verizon phone....)
Sent from my XT925 using Tapatalk 2
Click to expand...
Click to collapse
True, just the fact of knowing that it is there pisses me off though LOL.
Im going to try and work on a few things, like possibly trying the sim configuration with a SIM from a carrier that doesn't carry motorola/android phones, and see what happens.
P.S: Thank for your help with the motorola razr, i used your guide to upgrade to jb a while ago

[Q] Taking a Verizon S3 to AT&T

I bought a house and moved.
No service in the house with Verizon.
So, I switched to AT&T.
AT&T told me I would get HSPA+ with my Verizon S3.
Well... I have 2G, voice, and text.
Anyone have an idea of how to get HSPA+ enabled? Is it possible?
I have a custom ROM, but I can flash anything if it would help.
I don't think it's possible, they run on completely different networks (CDMA Vs GSM) and the phones radios are built accordingly.
Sent from my SCH-I535 using xda app-developers app
I'm leaning toward that. Guess I'll upgrade....
Verizon to AT&T and SIM unlock with NO codes
draexo said:
I'm leaning toward that. Guess I'll upgrade....
Click to expand...
Click to collapse
There is a way cant remember where i read it, maybe on the t-mobile forum. I recently bricked my att device and came across a verizon variant and was able to use it for att with out having it sim unlocked just a few hours ago steps taken were as follows:
After swapping the motherboards i factory reset the non rooted verizon device from the settings menu as I was just going to sell it on ebay. I had been using wifi only on a sim locked t-mobile device but the camera was not working so i switched back to the verizon and was prompted to complete the set up after i booted the device with no sim card inside. I got the no sim card message and ran the app Region Lock Away that has a red circle icon and a black unlocked pad lock by chainfire. I was skeptical 1 for the device not being rooted but tried anyway. The app said it was not able to verfiy root and closed; however once I inserted my att sim card without powering off the device i saw signal bars. Now Im not sure the app actually did anything and I might have tried the app before resetting it without success but after checking the network mode in the mobile networks tab it now shows Global as the preferred network. So i started texting people and then calling all with success. Now im still on the edge network and this may not solve your issue but I remember seeing the work around I think it has to do with correcting the APN settings but there is always a way to get things done. Keep looking you will find it. Im just happy to have cell service again but Ill be looking for the thread in a day or so as well.
Forced into an AT&T phone. It worked for 4 days then stopped. Their tech support claims the tap wasn't compatible and they don't know why it worked
I had 2g for those 4 days
I'm always on wifi but noticed my data wasn't working so not an ideal switch but if you are in a bind it does work. I'm still running at&t network on this Verizon motherboard just fine
Sent from my SCH-I535 using XDA Premium 4 mobile app
I don't know what happened but all inbound calls on day 4 went direct to voicemail. I reset phone, flashed different ROM.... Nothing

[Q] Phone wont stay on LTE

I recently switched from straight talk to verizon's own pre paid plan after being fed up with straight talk. When I first got the service active everything was fine. I flashed the CM11 AOSP rom snapshot. I then proceeded to try and update my roaming capabilities by dialing *228 which the automated system told me was successful and ever since then my phone will not stay on LTE. It will only goto 3G. If i try to force the lte only mode then my data will work but i wont be able to make calls. I have tried going into stock recovery and resetting factory to try and clear the NV and flashing both the kitkat and lollipop RUU to no avail. Any help would be greatly appreciated.
You might have damaged your Sim card by dialing *228, well I don't know about damaged, but I know Verizon phones locked to their network that uses 4G LTE Sim cards are blocked from dialing *228 because of the reasons you described.
rigbyrobot said:
You might have damaged your Sim card by dialing *228, well I don't know about damaged, but I know Verizon phones locked to their network that uses 4G LTE Sim cards are blocked from dialing *228 because of the reasons you described.
Click to expand...
Click to collapse
So maybe i need to go get a new sim card then. Thats what i figured hopefully i can get to the verizon store before work and grab one.
Hey,
Were you able to get it working again?
I have the same issue. I dialed *228 like an idiot and my phone activated on 3G and won't get anything else.
I've had Verizon reset the connection on their side and I went to the store and picked up a new SIM but I still can't get LTE. It's driving me crazy. I've tried restoring to a prior backup, factory resetting the phone. Nothing gets me LTE.

Help! my AT&T G8note does not want to get into Verizon network even though SIM card is ok.and unlocked, still getting the at&t bootup logo.

Is there anyway to clear my Samsung G8 note from the AT&T bootup logo? I did a factory reset and Nothing, it does not go into the Verizon network even though I have a number. contacted both Verizon and AT&T went to a repair shop nothing . Anybody out there had a similar problem or know how to solve this?

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