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No signal after sim unlock

I have unlocked at&t sgh i727 by purchasing code at cellunlocker.net..
It was done successfully,. It prompted that SIM unlock successful. But later I'm not getting signal (just a circle with slash)... I have got apn settings too.. Tried switching on/off airplane mode, pulling battery out n waited for sometime then booted up. No luck.
Its brand new phone, with stock firmware etc, everything new.
I'm in India now, inserted Vodafone SIM which asked for SIM unlock code n it said unlock successful...
Pls help me guys.
Sent from my ST15i using xda app-developers app

what frequency does voda use, might need to flash a diff radio or do *#2263#

Are you on Gingerbread or ICS? Try flashing Gingerbread.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

I'm new to this, can u pls detail it.
What should I do after *#2263#
Sent from my ST15i using xda app-developers app

I'm on gingerbread as I said u it was brand new.,
Sent from my ST15i using xda app-developers app

vincom said:
what frequency does voda use, might need to flash a diff radio or do *#2263#
Click to expand...
Click to collapse
I have googled some time n found that our frequencies lie under 900/1800. So I put the band preference to that frequency. But still couldn't get the signal.
Sent from my ST15i using xda app-developers app

Is there any way out, im out of my mind..
Pls help me
Sent from my ST15i using xda app-developers app

are you do a factory resert? sometime help. thats happened to me and I flashing a stock rom from SamFirmware.

eggypadua said:
are you do a factory resert? sometime help. thats happened to me and I flashing a stock rom from SamFirmware.
Click to expand...
Click to collapse
I hav done factory reset but no use,
Have u got the same problem after unlock.., did flashing stock rom solved it,??
Can u pls give me the link for firmware.
Thanks in advance
Sent from my ST15i using xda app-developers app

vincom said:
what frequency does voda use, might need to flash a diff radio or do *#2263#
Click to expand...
Click to collapse
Done it... thanks to u.. flashed different radios... n one worked...
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Which one did you flash im having the same problem
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Grover289 said:
Which one did you flash im having the same problem
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
Im on embryo 6.1 right now.. im using ucll3 radio..
Which rom are u using?
Sent from my SAMSUNG-SGH-I727 using xda premium

[Q] Roaming help for CM 10.1 Flash PLEASE!!

I flashed CM 10.1 and got some errors about network connectivity, so decided to just go back to my backup of a rooted stock image. Afterwards i still see that i dont have network connectivity, and i am now roaming. I Saw some guides saying to flash back to a stock image. But can i do that with an OTA JB version already? and ive read about just "reprovision my phone", will it work even with the rooted stock image?
Thanks
and my IMEI is still in tact

That Dinosaur Guy said:
I flashed CM 10.1 and got some errors about network connectivity, so decided to just go back to my backup of a rooted stock image. Afterwards i still see that i dont have network connectivity, and i am now roaming. I Saw some guides saying to flash back to a stock image. But can i do that with an OTA JB version already? and ive read about just "reprovision my phone", will it work even with the rooted stock image?
Thanks
Click to expand...
Click to collapse
I believe i just did the same thing as you did and it says im roaming as well / that i dont have service, i looked under about phone and looked at my phone number and it completely changed!? double check your phone number to see if it changed as well? i havent heard of any fixes yet but itll be nice if someone could answer our question!?

Badouken said:
I believe i just did the same thing as you did and it says im roaming as well / that i dont have service, i looked under about phone and looked at my phone number and it completely changed!? double check your phone number to see if it changed as well? i havent heard of any fixes yet but itll be nice if someone could answer our question!?
Click to expand...
Click to collapse
my number is still the same, and it still says i am in service just says i am roaming. i dont know what to do

Read the second post of the cm10.1 thread has three different ways to fix it
One is change CDMA subscription type to ruin/sim
Sent from my VS920 4G using xda app-developers app

kintwofan said:
Read the second post of the cm10.1 thread has three different ways to fix it
One is change CDMA subscription type to ruin/sim
Sent from my VS920 4G using xda app-developers app
Click to expand...
Click to collapse
i saw that but you have to have stayed in 4.2.1, or else that isnt an option

That Dinosaur Guy said:
i saw that but you have to have stayed in 4.2.1, or else that isnt an option
Click to expand...
Click to collapse
Have you checked your subscription type on what ever ROM you are on. Also the best method is to Odin root66 and disk the repro vision code
Sent from my VS920 4G using xda app-developers app

kintwofan said:
Have you checked your subscription type on what ever ROM you are on. Also the best method is to Odin root66 and disk the repro vision code
Sent from my VS920 4G using xda app-developers app
Click to expand...
Click to collapse
I am on the stock OTA JB from verizon at the moment, and ive tried to do the root 66 and the one i downloaded from doesnt have the .tar.md5 file in it: its was from this thread
http://forum.xda-developers.com/showthread.php?t=1762204
and im not exactly sure by what you mean subscription type, and can i just do the reprovision code if im just OTA JB with just root?

Under mobile settings there is an option for CDMA subscription type it must be rui/sim, nit sure if it's on stock though.
Also the repro vision code doesn't work on jb that's why you must go back to root66
Sent from my VS920 4G using xda app-developers app

kintwofan said:
Under mobile settings there is an option for CDMA subscription type it must be rui/sim, nit sure if it's on stock though.
Also the repro vision code doesn't work on jb that's why you must go back to root66
Sent from my VS920 4G using xda app-developers app
Click to expand...
Click to collapse
i saw what you mean, the only ones i have are global, LTE/CDMA, and GSM/ UMTS, so i switched to CDMA and it just said its searching for CDMA/LTE. and do you know any route66 with the actual .tar.md5 file? thanks

That Dinosaur Guy said:
i saw what you mean, the only ones i have are global, LTE/CDMA, and GSM/ UMTS, so i switched to CDMA and it just said its searching for CDMA/LTE. and do you know any route66 with the actual .tar.md5 file? thanks
Click to expand...
Click to collapse
After you download the one you linked to me you have to extract the .tar. I assume you know how to do this, but just in case right click the zip and extract all
Sent from my VS920 4G using xda app-developers app

kintwofan said:
After you download the one you linked to me you have to extract the .tar. I assume you know how to do this, but just in case right click the zip and extract all
Sent from my VS920 4G using xda app-developers app
Click to expand...
Click to collapse
I had extracted and i only got 2 disc boot images two EXT4 files and and a BIN file. No .tar

That Dinosaur Guy said:
I had extracted and i only got 2 disc boot images two EXT4 files and and a BIN file. No .tar
Click to expand...
Click to collapse
Strange most people use that one, oh well try this one
http://forum.xda-developers.com/showthread.php?p=33948598
Sent from my VS920 4G using xda app-developers app

kintwofan said:
Strange most people use that one, oh well try this one
http://forum.xda-developers.com/showthread.php?p=33948598
Sent from my VS920 4G using xda app-developers app
Click to expand...
Click to collapse
Thank you so much, you have been a great help, ill flash this, and then use the repro code. Hopefully all is well

That Dinosaur Guy said:
Thank you so much, you have been a great help, ill flash this, and then use the repro code. Hopefully all is well
Click to expand...
Click to collapse
Let me know, glad to help
Sent from my VS920 4G using xda app-developers app

kintwofan said:
Let me know, glad to help
Sent from my VS920 4G using xda app-developers app
Click to expand...
Click to collapse
Yes it worked!!! now im going to just get cm10 stable. Thanks again so much

That Dinosaur Guy said:
Yes it worked!!! now im going to just get cm10 stable. Thanks again so much
Click to expand...
Click to collapse
Great to hear! I recommend avoiding cm10.1 until the bugs are worked out.... If you rely on your phone.
Sent from my VS920 4G using xda app-developers app

kintwofan said:
Great to hear! I recommend avoiding cm10.1 until the bugs are worked out.... If you rely on your phone.
Sent from my VS920 4G using xda app-developers app
Click to expand...
Click to collapse
i will, ill just use the prior cm 10, no 10.1
thanks for the advice

That Dinosaur Guy said:
i will, ill just use the prior cm 10, no 10.1
thanks for the advice
Click to expand...
Click to collapse
Yes, stay away from CM 10.1. I lost my MEID from doing it which means the phone wasn't able to make or receive calls.

sghrush said:
Yes, stay away from CM 10.1. I lost my MEID from doing it which means the phone wasn't able to make or receive calls.
Click to expand...
Click to collapse
You can lose that no matter what you flash. That's why all ROMs say to back it up before flashing.
Sent from my VS920 4G using xda app-developers app

Free unlock code

This seem to work over at the O2X forum with 0 complaints . Just sent in my request. Give it a try and see if we can unlock for free
http://freemyblackberry.com/other-phone-brands.php
Sent from my LG-P999 using Tapatalk 2

Tried this a few days ago, worked well. Sucks that this phone doesn't operate on many networks in Canada.

Gonna try it later on today will post back results. Thanks for the link TC
Sent from my SCH-I535 using Tapatalk 2

Thanks for the link. I'll give it a shot. I've got my doubts but meh.. I'm young.. I'll adjust

Requested. Will post if it works.

Hm, Anyone know how I can input my SIM Unlock Code? I tried putting an invalid SIM (Rogers SIM and a Bell SIM) but I can't get to the SIM Unlock page. I also tried the 2945#*999# But it gets stuck at USSD Code running on the WIND Sim card and doesn't work on any other SIM.

Are you running a stock ROM? I did it with mine using the special menu, but I had to flash the stock ROM in order to do it.
Sent from my LG-P999 using xda app-developers app

Hi G2xer,
Thanks for sharing this great site. I am a Canadian Wind user. By following the instruction, I am able to get an unlock code to unlock my phone.
For all the Wind user out there,
If you are on CM7 based rom, you will need to restore back to stock rom first. Otherwise, you will not be able to get to the unlock screen.
Thanks,

Hi all,
Works great as advertised. Thanks to the OP for sharing this gem.
Sent from my LG-P999 using xda app-developers app

afung01 said:
Hi G2xer,
Thanks for sharing this great site. I am a Canadian Wind user. By following the instruction, I am able to get an unlock code to unlock my phone.
For all the Wind user out there,
If you are on CM7 based rom, you will need to restore back to stock rom first. Otherwise, you will not be able to get to the unlock screen.
Thanks,
Click to expand...
Click to collapse
Darn.. I think I lost my Nandroid of the 2.2 Rom.. Lemme go try and find another one and see if it'll work. Thanks for this tip.

Worked for me too guys! No problem. Always a pleasure to help someone out in any way!
Sent from my LG-P999 using Tapatalk 2

im still waiting for mine. i submitted about 4 days ago

If you report a missing phone to your carrier along with the imei they can disable the phone..

danshuynh said:
If you report a missing phone to your carrier along with the imei they can disable the phone..
Click to expand...
Click to collapse
Not relevant to this thread
Sent from my LG-P999 using xda app-developers app

Yuvin said:
Darn.. I think I lost my Nandroid of the 2.2 Rom.. Lemme go try and find another one and see if it'll work. Thanks for this tip.
Click to expand...
Click to collapse
Any stock based Rom would do.
Sent from my LG-P999 using xda app-developers app

Got my code the next day and also had to revert to stock to unlock.
Sent from my LG-P999 using xda app-developers app

Lol lame I never heard a word back
Sent from my LG-P999

xBkKx said:
Lol lame I never heard a word back
Sent from my LG-P999
Click to expand...
Click to collapse
Could be a scam to get IMEI numbers to clone phones/enable activation of stolen phones.

Core Memory said:
Could be a scam to get IMEI numbers to clone phones/enable activation of stolen phones.
Click to expand...
Click to collapse
I figured as much but was hopeful since everyone else seemed to be successful in getting one lol
Sent from my LG-P999

Worked for me, but doesn't mean it's not a scam....
Sent from my LG-P999 using xda app-developers app

No 4G

I have rooted and flashed Beans B10, since flashing I have no 4G. I did a clean install and have also reflashed and still no 4G. Anyone else have an experience on getting 4G back?

Flash a different modem. Which one do you have installed currently?
Sent from my SCH-I535 using xda app-developers app

SlimSnoopOS said:
Flash a different modem. Which one do you have installed currently?
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
VRBMA2 before that I had VRALJ1 with the same issue of no 4G

mallard6453 said:
VRBMA2 before that I had VRALJ1 with the same issue of no 4G
Click to expand...
Click to collapse
Does your 3g work just not LTE? Are you flashing the rpm as well? I had an issue once when I flashed just the modem and that entire day I couldn't connect to LTE but 3g connected fine. When I took the time to flash the rpm my LTE returned. So I flash both every time now.
Sent from my SCH-I535 using xda app-developers app

SlimSnoopOS said:
Does your 3g work just not LTE? Are you flashing the rpm as well? I had an issue once when I flashed just the modem and that entire day I couldn't connect to LTE but 3g connected fine. When I took the time to flash the rpm my LTE returned. So I flash both every time now.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Yes I have flashed the modem and the rpm and get the same results

mallard6453 said:
Yes I have flashed the modem and the rpm and get the same results
Click to expand...
Click to collapse
Aight, now flash VRBLK3.
Sent from my SCH-I535 using xda app-developers app

SlimSnoopOS said:
Aight, now flash VRBLK3.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Re-flashed the ROM and used that Modem. Not in a 4G area so we will see what happens.

Cool, post back with your results
Sent from my SCH-I535 using xda app-developers app

Try installing the Phone Info app from the Play store I did and it lets you force toggle the correct 4G/LTE settings for your provider. Not sure which one you'll need, but I've used that app to sort mine out when it acted up. Also did the modem and rpm updates, but phone info got me better results.

mallard6453 said:
Re-flashed the ROM and used that Modem. Not in a 4G area so we will see what happens.
Click to expand...
Click to collapse
Flashed that modem, was out in town and still no 4G....

Call up vzw and get a new sim card
Sent from my SCH-I535 using Tapatalk 2

mallard6453 said:
Flashed that modem, was out in town and still no 4G....
Click to expand...
Click to collapse
The last thing I can suggest is that you Odin flash either a VRALF2 or VRALG1 rom then reprovision your sim card. This formats your internal storage:
*2767*3855#
if you do that and still no LTE, I'd definitely do the following suggestion:
faehsemc said:
Call up vzw and get a new sim card
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
Sent from my SCH-I535 using xda app-developers app

Have you verified what network you're on? Settings - more settings - mobile networks - network mode.
It should be set on CDMA /LTE. I've had flashes before changed that to global or gsm....
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letinsh said:
Have you verified what network you're on? Settings - more settings - mobile networks - network mode.
It should be set on CDMA /LTE. I've had flashes before changed that to global or gsm....
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
I am on LTE/CDMA

SlimSnoopOS said:
The last thing I can suggest is that you Odin flash either a VRALF2 or VRALG1 rom then reprovision your sim card. This formats your internal storage:
*2767*3855#
if you do that and still no LTE, I'd definitely do the following suggested
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
What is the correct path to flash odin?

mallard6453 said:
What is the correct path to flash odin?
Click to expand...
Click to collapse
Section 5 of this guide:
http://forum.xda-developers.com/showthread.php?t=1762709
Sent from my SCH-I535 using xda app-developers app

letinsh said:
Have you verified what network you're on? Settings - more settings - mobile networks - network mode.
It should be set on CDMA /LTE. I've had flashes before changed that to global or gsm....
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
I was at Walmart today in their cell phone area and looked at a S3 that was on Verizon. I checked the mobile networks and it shows Global. Called a co-worker who has once and he too was on global and getting 4G. I Odin back and tried the*2767*3855# and got a recording that my call couldn't be connected. Any other ideas?

mallard6453 said:
I was at Walmart today in their cell phone area and looked at a S3 that was on Verizon. I checked the mobile networks and it shows Global. Called a co-worker who has once and he too was on global and getting 4G. I Odin back and tried the*2767*3855# and got a recording that my call couldn't be connected. Any other ideas?
Click to expand...
Click to collapse
State my original statement again... call Verizon for a new sim card.if that doesn't work still then get a warranty replacement
Sent from my SCH-I535 using Tapatalk 2

faehsemc said:
State my original statement again... call Verizon for a new sim card.if that doesn't work still then get a warranty replacement
Sent from my SCH-I535 using Tapatalk 2
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Click to collapse
Update: Wanted to give an update. Went to Verizon today and got a new sim card. 4G is strong and on now. Thanks for all the help fellow members.

mallard6453 said:
Update: Wanted to give an update. Went to Verizon today and got a new sim card. 4G is strong and on now. Thanks for all the help fellow members.
Click to expand...
Click to collapse
I win! W00t! Best suggestion! Lol.
Sent from my SCH-I535 using Tapatalk 2

[Q] Unable to get LTE to work (Rogers)

Everything is turned to LTE in mobile networks and my SIM card is LTE enabled. I dont know what else could be wrong. I know i have the LTE plan as well. I took it rogers and the person there didnt do more than just check network settings. any help would be appreciated. thanks

You sure you have lte in your area?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

jd1639 said:
You sure you have lte in your area?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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Click to collapse
yes 100 % sure lol

niassu Este
i plugged into my computer and ran samsung kies, it said i had a firmware upgrade (even though i was already on the latest), after the update LTE started to work.

del.boca.vista said:
i plugged into my computer and ran samsung kies, it said i had a firmware upgrade (even though i was already on the latest), after the update LTE started to work.
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Click to collapse
That's good news. Probably reflashed the radio
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jd1639 said:
That's good news. Probably reflashed the radio
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
probably had it set to gsm only and the update set it back to lte