Develop Bugs

[Q]No Signal

I just brought a galaxy s3 from cragalist and it's in like new condition but when i put my micro SIM card I see bars but when i try to call it says not registered on network. I'm using simple mobile.
Sent from my SPH-D710 using xda premium

May be its not unlocked.

Is it on the right APN?
Sent from my Nexus 4 using xda premium

NO signal, as the title says, would mean you dont see any bars. Since you are seeing bars, then your having a registration issue.
does the sim work in another device? do you have the right APN? Have you tried power cycling the device. Usually if you have it on, put in a sim, the APN is then loaded but not set. Power cycling it again will then enable the APN. At least thats what has happened to me a few times with my TMO card and unlocked devices.

The best place to get a solution, contact the carrier. We can bit around the bush for you, but it's not going to help much.
hazedabeast said:
I just brought a galaxy s3 from cragalist and it's in like new condition but when i put my micro SIM card I see bars but when i try to call it says not registered on network. I'm using simple mobile.
Sent from my SPH-D710 using xda premium
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Click to collapse

IAmSixNine said:
NO signal, as the title says, would mean you dont see any bars. Since you are seeing bars, then your having a registration issue.
does the sim work in another device? do you have the right APN? Have you tried power cycling the device. Usually if you have it on, put in a sim, the APN is then loaded but not set. Power cycling it again will then enable the APN. At least thats what has happened to me a few times with my TMO card and unlocked devices.
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Click to collapse
How do i power cycle?
Sent from my SPH-D710 using xda premium

...turn off the phone. Or pull the battery. Both are power cycling. I'd pull the battery in your case
Sent from my SGH-T999 using xda app-developers app

[Q] Is this blocked IMEI on my Note 2? im confused :(

Im a little confused and im wondering if someone can help me out or if someone is going through the same thing i am.... :crying::crying::crying:
So i just got a Galaxy Note 2 from my fathers friend at work and i am wondering is this considered when they say being a blocked IMEI cause its a little confusing...
So I have T-Mobile and i received the Note 2 it is not rooted or anything and the IMEI matches the same in the "About Device" and in the back behind the battery so anyways i go and pop my micro sim card in and notice right away it gets no service it just has a circle with a horizontal line accross like seen on the pics and the lock screen just says "Searching".. i go into mobile networks and try to manually select the T-mobile network and it just gets stuck on "Registering to T-Mobile" then i get an error in my notifications that says "No Service Selected Network (T-Mobile) not available" so right away im assuming that the IMEI must be bad so i call T-Mobile give them the IMEI and they tell me its NOT blocked so now it gets confusing.
while i was still messing with it i decided to turn ON wi-fi and all of a sudden the wi-fi calling feature turns on and viola! the circle with the horizontal line changes to empty service bars and in the notifications dropdown it now says T-Mobile so i go on and make a call IT WORKS! send a text IT WORKS receive calls and texts ALSO WORK! now isnt that wierd?
what do you guys think might be wrong with the phone is the IMEI really blocked but if it is will i be able to make calls and send and receive texts i dont understand please some one help me any advice will be appreciated.. :fingers-crossed:
Thanks (here are pics of screen shots)

Try switching the phone to 2g only ! *#*#4636#*#*.
MIGHT BE signal problem in your area
Sent from my iPad using Tapatalk HD

I actually tried that and it dont work..... but now something wierd happened... it start working good In certain areas and then it cuts off
Sent from my SGH-T889 using xda premium

Try calling tmobile with a differnt phone.
Sent from my SGH-T889 using xda app-developers app

Generally, when your IMEI is blocked, you'll have bars and even data. Your phone just won't work. So I doubt it's that. The fact that WiFi calling works tells me that the SIM reader works. Do you know if the phone was taken apart? Maybe the antenna is messed up. Id just try going somewhere else to use your phone and try.
Possibly root and flash different modem?
Sent from my SGH-T889 using xda app-developers app

You_got_owned123 said:
Generally, when your IMEI is blocked, you'll have bars and even data. Your phone just won't work. So I doubt it's that. The fact that WiFi calling works tells me that the SIM reader works. Do you know if the phone was taken apart? Maybe the antenna is messed up. Id just try going somewhere else to use your phone and try.
Possibly root and flash different modem?
Sent from my SGH-T889 using xda app-developers app
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Click to collapse
The sim card reader does work cause sometimes out of the blues the phone will register on the network and im able to use it fully as it should and then it goes back to having the little circle with a line accross it.... today it behaved preety good it gave me a good amount of time of usage but it would still randomly cut off and come back on..... as far as being opened im starting to think it maybe was opened or something cause it doesnt have the "VOID" sticker on the screw in the back like it should..... and maybe what u said about flashing a different modem how can I check what modem I have now?? Cause the phone was rooted and had a custom rom but I restored it back to stock with Odin not sure if doing that will restore the stock modem or not.
Thanks for all your help :thumbup:
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DROID_ROCKS_IFONE said:
The sim card reader does work cause sometimes out of the blues the phone will register on the network and im able to use it fully as it should and then it goes back to having the little circle with a line accross it.... today it behaved preety good it gave me a good amount of time of usage but it would still randomly cut off and come back on..... as far as being opened im starting to think it maybe was opened or something cause it doesnt have the "VOID" sticker on the screw in the back like it should..... and maybe what u said about flashing a different modem how can I check what modem I have now?? Cause the phone was rooted and had a custom rom but I restored it back to stock with Odin not sure if doing that will restore the stock modem or not.
Thanks for all your help :thumbup:
Sent from my SGH-T889 using xda premium
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I don't think there actually is a void sticker.. When I opened mine up, I didn't find one . I could have just over looked it possibly. Just try flashing JediM14. Comes with everything you need much better than stock. I'm thinking maybe tmobile is working on your area so you have intermittent service. Could be anything. I'll try to help you look into it. The sticky for the modem, ,facotry img and such is in android development. I think the sticky thread is in top three. It's obvious
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When you odin flashed back to stock did you then run all available ota's?
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moto211 said:
When you odin flashed back to stock did you then run all available ota's?
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Yea I tried that and it said there was no available updates.... im currently running build JZO54K.T889UVBMB4 is that the latest one??
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You_got_owned123 said:
Just try flashing JediM14. Comes with everything you need much better than stock. I'm thinking maybe tmobile is working on your area so you have intermittent service. Could be anything. I'll try to help you look into it. The sticky for the modem, ,facotry img and such is in android development.
Click to expand...
Click to collapse
Does that rom JediM14 flash a different modem when I flash it..... and ive heard about the canadian T889v modem will that work on my phone? Excuse the noob question im not that experienced in this so dont wanna brick my phone or anything
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DROID_ROCKS_IFONE said:
Does that rom JediM14 flash a different modem when I flash it..... and ive heard about the canadian T889v modem will that work on my phone? Excuse the noob question im not that experienced in this so dont wanna brick my phone or anything
Sent from my SGH-T889 using xda premium
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Click to collapse
im having same issue but i can actually make calls and get text, the data side isnt working , sometimes it kicks in but its more on no data than on
im calling for a replacement tomorrow this was a replacement from a bad usb port phone i sent 2 days ago , tried everything and i know its not network cuz everyone in my house has t mobile . hope you figure it out as i gave up

JediM14 comes with the new MD1 firmware. Everything is for Tmobile. During installation, I think aroma gives you options for modem..not completely sure . but if you have tmobile, I'd stick with tmobile modem. Does anyone else have tmobile at your house you can compare signal to?
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JediM14 comes with the new MD1 firmware. Everything is for Tmobile. During installation, I think aroma gives you options for modem..not completely sure . but if you have tmobile, I'd stick with tmobile modem. Does anyone else have tmobile at your house you can compare signal to?
Sent from my SGH-T889 using xda app-developers app
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I actually just updated to the OTA MD1 update and still the same and my wife has T-Mobile aswell she has an iphone 5 and she never looses service here, not too mention we get LTE already in our area but she always has full or almost full bars, as for me as im typing this now this is what mines looks like but yet yesterday in the night I was getting service and 4g LTE
Im starting to think maybe its a hardware problem with my cellular antenna cause my wi-fi antenna works just perfect or what else might it be?
Sent from my SGH-T889 using xda premium

As long as you're stock and unrooted, you might be able to get a warranty replacement. I know you're not the original owner but it really depends on the rep that you get on the phone. If you get the right rep they'll warranty it based on the fact that no matter who originally purchased the phone, there's no way it could be more than a year old. Or, if you have the premium handset protection, you should be able to get it covered under the extended warranty that it offers.
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Call Tmobile and tell them your situation. They'll reset your connection to the towers and it might help. They've done that for me. Just ask for like a connection reset. Even better if you just told them what's happening.
Sent from my SGH-T889 using xda app-developers app

Could be antena problem. Had that happen to me with my skyrocket. The one end was not connecting to the right place. Somebody accidentally cut it off when I had the speaker fixed.

droidbabyxda said:
Could be antena problem. Had that happen to me with my skyrocket. The one end was not connecting to the right place. Somebody accidentally cut it off when I had the speaker fixed.
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Click to collapse
Could be this. I bought a replacement loudspeaker that was apparently for the T889 (which it wasn't)..[Most loudspeaker modules that say they are for the T889 are missing the third contact.] It was a missing a antenna contact which totally killed my reception. Try to take it apart and look at the loudspeaker. There should be three white tab looking things on the module itself. If there's only two, then that's most likely the problem.

[Q] help plz,no mobile conection.

hello,everyone. I bought L900 from ebay,then when i got it, i began to change it,i use the i605's sim chip to take place the default,then i began to use note2 tool kit to flash the insecure stock lj1 to the phone,then the recovery,and i use the recovery to flash the ljc moden and an avkp8's rom,now I use dfs to set the ruim config to ruim only and the set the data pap an ppp account,last change the mobile ip.then reboot the phone (I have successfully change the five l900s to adjust our country's mobile network,this time i do the same job) but i found it could recognize the gsm and wcdma‘s network, i counldn't see the cdma's signal only when i insert the cdma uim card,the signal display like a circle and rod.but in phone's info i found the esn and sid prl could be read out( i have set the network automatic),just like sth prevent it to connect the mobile network.
then I use the root66's stock alj1's rom to restore the phone use ##786#, then i use cdmaworkshop to write cdma parameter to the phone,still no cdma network, the signal display like before, I have check the TOP Q&A,and sb no network connection’s way they always say stock rom restore,but it doesn't work,what can i do now?:crying::crying::crying::crying:

1. this is illegal and cannot be discussed on xda.
2. why dont you just buy i605s in eBay instead of a phone that isn't designed for international use nor sim card use
Sent from my SPH-L900 using xda app-developers app

reinaldistic said:
1. this is illegal and cannot be discussed on xda.
2. why dont you just buy i605s in eBay instead of a phone that isn't designed for international use nor sim card use
Sent from my SPH-L900 using xda app-developers app
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Click to collapse
l900 cheaper than i605 but configuration is same.so the reason is very simply.

may i ask how can i reset all NV item. and why i see sb say change the meid and phone lock?

No promises on whether or not it'll work for your situation but you can try ##72786# in the dialer. And this isnt illegal. And I'm pretty sure sewing as how there are guides here showing u how to do this that its allowed to be discussed
Sent from my SPH-L900 using xda premium

reinaldistic said:
1. this is illegal and cannot be discussed on xda.
2. why dont you just buy i605s in eBay instead of a phone that isn't designed for international use nor sim card use
Sent from my SPH-L900 using xda app-developers app
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Click to collapse
Unlocking bootloader (rooting phones) is actually illegal. Since last year. So we all kinda "broke the law" by unlocking our device's. Read itt on flipboard last year. I dont know if it still applies
Sent from my SPH-L900 using Tapatalk 2

I have read nothing saying rooting saw illegal. Only unlocking. Unlocking being carrier unlocking.
Sent from my SPH-L900 using Tapatalk 2

hi,I don't want to talk about how to hack the phone,I just want my phone normal using. so i really want to know how to recovery the nv item ,i just want the network connection come back when i use cdma frequence （800-900 mhz）. And why the mobile network gone,even if i write back the first parameter.

S3 no reception?

My friend got a phone from T-Mobile s3 few weeks ago and unlocked it to use it here in Canada in mobilicity network. But it has like 0 reception it gets reception for few mins than goes to 0 bars. Is it a radio issue or something else? Any help would be greatly Appreciated. Thanks!
Sent from my SGH-I317 using xda app-developers app

Are you sure the unlock was successful? Im not sure how it works in Canada but could it be blacklisted?
While it shows signal does it work for calls and data?
Sent from my SGH-T999 using Tapatalk

Yes unlock was successful and recognize the network. Gets reception you can make call after few mins loses it and goes to 0 it's not blacklisted as it was purchased outright from the retail store. Right now there is no Sim card on phone and it shows 4 bars.
and for some reason this is the newest s3 i think cause usually its t999v this one say t999l
DocHoliday77 said:
Are you sure the unlock was successful? Im not sure how it works in Canada but could it be blacklisted?
While it shows signal does it work for calls and data?
Sent from my SGH-T999 using Tapatalk
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Sent from my SGH-I317 using xda app-developers app

Yes unlock was successful and recognize the network. Gets reception you can make call after few mins loses it and goes to 0 it's not blacklisted as it was purchased outright from the retail store. Right now there is no Sim card on phone and it shows 4 bars.
DocHoliday77 said:
Are you sure the unlock was successful? Im not sure how it works in Canada but could it be blacklisted?
While it shows signal does it work for calls and data?
Sent from my SGH-T999 using Tapatalk
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Sent from my SGH-I317 using xda app-developers app

You might need a new sim card. And the T999V is only sold by the Canadian carriers. The T999L is the updated lte model of the original T999.
After unlocking were you able to use a sim from another carrier and have it work with zero issues? If you only tested it on the network you are reporting problems with that is not confirmation of a successful unlock. Try a sim from another carrier and see if it works.
If it is unlocked then it sounds like an old sim card type issue.
Sent from my SGH-T999 using Tapatalk

*please ignore*

DocHoliday77 said:
You might need a new sim card. And the T999V is only sold by the Canadian carriers. The T999L is the updated lte model of the original T999.
After unlocking were you able to use a sim from another carrier and have it work with zero issues? If you only tested it on the network you are reporting problems with that is not confirmation of a successful unlock. Try a sim from another carrier and see if it works.
If it is unlocked then it sounds like an old sim card type issue.
Sent from my SGH-T999 using Tapatalk
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just tried my sim card same issue and we tried with 2 other brand new sim card from ssame provider. i just flashed this March 2014 - 4.3 JellyBean - New!
Note: This is based off of the stock image TMO T999LUVUBNC1
Download :: Download - root66_TMO-L_T999LUVUBNC1.7z through odin thought it might be radio issue but same thing.
her daughter has the same s3 with 4.1.2 and works perfect. can i downgrade through odin to 4.1.2? i think md5 modem might be better.

Unfortunately no. Once you flash 4.3 there is no going back. If its not working with any of the sim cards, try one from another carrier if possible.
Kinda sounds to me like its not unlocked. How did you go about attempting to get it unlocked?
Sent from my SGH-T999 using Tapatalk

She will come to pick the phone today I'll ask how did she unlock the phone. But if it wasnt unlocked how does it recognize the Sim? Can you suggest me a modem? But I will ask how she unlock it and let you know. Also when I flash the new 4.3 it didn't erase the call history and also when I reset the phone it doesn't seem like it resets it cause the call history's are still there.
DocHoliday77 said:
Unfortunately no. Once you flash 4.3 there is no going back. If its not working with any of the sim cards, try one from another carrier if possible.
Kinda sounds to me like its not unlocked. How did you go about attempting to get it unlocked?
Sent from my SGH-T999 using Tapatalk
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sofia-captivate said:
She will come to pick the phone today I'll ask how did she unlock the phone. But if it wasnt unlocked how does it recognize the Sim? Can you suggest me a modem? But I will ask how she unlock it and let you know. Also when I flash the new 4.3 it didn't erase the call history and also when I reset the phone it doesn't seem like it resets it cause the call history's are still there.
Sent from my SGH-I317 using xda app-developers app
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You can only use the 4.3 modems now. When you flash firmware it doesnt erase your data. Not sure why it didnt on a factory reset though, unless its stored on sd.
Sent from my SGH-T999 using Tapatalk

LTE bug

Hi I seem to have a problem getting LTE. I'm using a galaxy s3 i747m on Fido and I'm using stock Rogers ROM. I have a problem with LTE. I used to get it everywhere most of the time but it now only works once in a while. When I do finally get LTE it only works 30% of the time. I have full signal LTE but it doesn't load any webpages or anything. Once and a while it does though. I have tried bootloaders, modems, different Roms and I can seem to solve this problem. Does anyone know how I can fix this?
Thanks. I need my stable LTE back.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

Anyone?
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

By modems do you mean basebands?
Have you look into your Access Point settings and preferred network type?

Yes by modems I mean basebands. My network type is LTE,3g, 2g. My APN is right. I can get LTE but when I do nothing loads at all. I have tried different Roms, different modems, different kernels and nothing seems to work. I did have LTE that worked before though.
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pjcordi said:
Yes by modems I mean basebands. My network type is LTE,3g, 2g. My APN is right. I can get LTE but when I do nothing loads at all. I have tried different Roms, different modems, different kernels and nothing seems to work. I did have LTE that worked before though.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
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Click to collapse
When did it stop working? Do you remember what was done to the phone?
If nothing particular was done before that happened, you might wanna give Fido a call so they can check your connectivity and perhaps get a new sim card.

Well it stopped once flashed aokp ROM. I have a cut some card so that could be the cause unfortunately. I'll try a new simcard and see if that fixes it. I might also try flashing back to complete stock but I'm not too sure if that would help at all. I remember having LTE as soon as I turned it on and now it never turns on.
Thanks for the info!
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

pjcordi said:
Well it stopped once flashed aokp ROM. I have a cut some card so that could be the cause unfortunately. I'll try a new simcard and see if that fixes it. I might also try flashing back to complete stock but I'm not too sure if that would help at all. I remember having LTE as soon as I turned it on and now it never turns on.
Thanks for the info!
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
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Click to collapse
You can backup your stuff, fully wipe and go on from there. Worth giving it a shot before changing your sim card.

I actually swapped the Sim card and that didn't seem to work. I'm just going to go back to complete stock and see if that works.
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I went back to stock and I still can't get let. Do you think it would be a good idea to change my flash counter back to zero? Nothing seems to be work and I know my phone doesn't have a problem. It has to have something to do with what I'm flashing. Any other ideas?
Sent from my SGH-I747M using XDA Free mobile app

+1 I'm on rogers I'm having the same problem :/ maybe its carrier related. I flashed the 4.4.2 rom then odined back to stock, thats when it started. IMEI seems intact aswell. Modem is good. Any ideas?

R5R said:
+1 I'm on rogers I'm having the same problem :/ maybe its carrier related. I flashed the 4.4.2 rom then odined back to stock, thats when it started. IMEI seems intact aswell. Modem is good. Any ideas?
Click to expand...
Click to collapse
I have literally tried everything lol. I think it has something to do with our phones picking up the wrong signal. I live in Mississauga Ontario and I get LTE in the middle of the city but it doesn't connect at all. All it does is take forever to load a page and times out.
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So I fixed the issue. I added another APN to my settings. So I have two ltemobile.apn for fido. I turned off the phone removed the sim. Turned the phone back on without the sim and entered service mode *#2263# and I put it to LTE all in the settings. I then turned the phone off and turned it back on with the sim and lte is working and my speeds are back. After that was all done I entered back to service mode *#2263# and put the network back to automatic all and now the phone automatically connects to LTE when I want it to.
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