[Q][Help] No service after rooting my Galaxy S3?

vavasound · Feb 13, 2013

I`m having same problem on a i9305

billard412 said:
Did you attempt my method?
I cant see how you can update prl/profile without a signal. couldve told u that wouldnt work.
Try what ive posted above if you didnt already

If that dont work you need to reflash the stock rom (http://xdaforums.com/showthread.php?t=1904099) and do the ##72786# trick

Man, I tried the ##72786# and I get the following message:
Connection Problem or invalid MMI code

I'm loosing signal, when I try to call it doesn't complete the call and even with my S3 showing signal when I call to it's on the mail box...

any clue?

I lost signal after flash a custom rom. I tried to get back to the original twice, full wipe and stuff but nothing... signal keeps dropping...

Thanks

dhunt4949 · Feb 13, 2013

Try this. It s a dialer reset code

https://twitter.com/pof/status/250540790491787264
Sent from my SPH-L710 using xda app-developers app

Robalboa · Feb 13, 2013

dhunt4949 said:
Try this. It s a dialer reset code

https://twitter.com/pof/status/250540790491787264
Sent from my SPH-L710 using xda app-developers app

try reflashing the modem only!

vavasound · Feb 13, 2013

I have a Custom Rom with a modem.bin inside it...

Robalboa said:
try reflashing the modem only!

Well... I don't know exactly how to flash only the modem but I have another doubt... If I change the modem.bin inside a custom rom (those .zip that we should flash using CWM) for a newer modem.bin that I've extracted from the last OEM samsung rom, and then flash this new .zip rom with the newer modem, it will work??

Thanks man for the help

vavasound · Feb 13, 2013

dhunt4949 said:
Try this. It s a dialer reset code

https://twitter.com/pof/status/250540790491787264
Sent from my SPH-L710 using xda app-developers app

Didn't work also... same error... wrong mmi or something... but guys I found something interesting, if I choose to search for GSM only it works fine, if I change to LTE/WCDMA/GSM then I got the problem.... and in this mode I am unable to choose the carrier, when i hit to choose it keeps searching and searching and nothing.... if I switch to GSM only then the search works out. ..
Strange... any clue? ??

Sent from my GT-I9305 using xda app-developers app

vavasound · Feb 14, 2013

vavasound said:
Didn't work also... same error... wrong mmi or something... but guys I found something interesting, if I choose to search for GSM only it works fine, if I change to LTE/WCDMA/GSM then I got the problem.... and in this mode I am unable to choose the carrier, when i hit to choose it keeps searching and searching and nothing.... if I switch to GSM only then the search works out. ..
Strange... any clue? ??

Sent from my GT-I9305 using xda app-developers app

Guys, thanks for the help... I'm in doubt what about really happened... but I've found a solution ( or I really think that my carrier had a problem that makes me guilty my amazing S3)

I set up to GSM only, searched for carriers and then choose Auto Search
Then I set it as WCDMA/GSM and searched and set it to auto choose
And then I choose LTE/WCDMA/GSM and then searched again and it worked...
It was like I pushed it to work... like a car out of battery...
Very strange but i solved like this

Sent from my GT-I9305 using xda app-developers app

robertqadkins · Feb 16, 2013

vavasound said:
Guys, thanks for the help... I'm in doubt what about really happened... but I've found a solution ( or I really think that my carrier had a problem that makes me guilty my amazing S3)

I set up to GSM only, searched for carriers and then choose Auto Search
Then I set it as WCDMA/GSM and searched and set it to auto choose
And then I choose LTE/WCDMA/GSM and then searched again and it worked...
It was like I pushed it to work... like a car out of battery...
Very strange but i solved like this

Sent from my GT-I9305 using xda app-developers app

How do i do this. I am having the same problem. I can't choose gsm. I only have cdma and cdma/lte. Different phone model?

metalfan78 · Feb 16, 2013

I'm not sure how we (sprint) would fix your issue. That guy has a different version, and his profile says he's in Brazil so he's in the wrong forum. Our phones aren't on a gsm network. Did you try the dialer codes, or Odin back to stock?

vavasound · Feb 16, 2013

robertqadkins said:
How do i do this. I am having the same problem. I can't choose gsm. I only have cdma and cdma/lte. Different phone model?

Probably is a different version which one is yours?

Hit thanks if you think that this post was useful... Sent from GT-I9305 using xda premium

livis n fur · Feb 17, 2013

billard412 said:
Blazer is based on stock so that trick in the dialer should still work for you

The ##72786# worked for me well, I flashed a ported rom then it all went down hill from that point. So relished a backup and still no signal . Checked modem and did another wipe flash . Still nada, downloaded stock then the code , got signal back but only 3G update prl. I don't post much and just signed up as member but been flashing for awhile (evo 4g) old school. But I have no idea what happened. All I think of is a bad download. But any ways thanks for the help.

jfcooley · Feb 17, 2013

This happened to me early this morning. I noticed that under settings the device had 000-000-0016 as my phone number and MIN as well as AABBCCDDEEFF00@hsn.sprintpcs.

All those were obviously way off. I called sprint to get the MSL and was able to change my phone number and MIN by entering ##(mel)#

Edit - change phone number and MIN. Both are the same on my line, but I'll mention my wife's nexus the MIN is different. May have to ask Sprint if you aren't sure.

After reboot (had to do above 2 times cause phone number didn't stick first time) o entered ##data# and was able to change the user name. I apologize for not remembering the steps but you can find where easily.

After all that rebooted and data/signal were good. Updated profile and PRL. No issues since.

Not sure what I did. I flashed a ROM (not mentioning because not certain the ROM was at fault) and it went to greyed bars with roaming indicator. Tried toggling data and nothing. Restored backup with same result. Restored tw backup (stock) and got same. Checked settings/about phone/status throughout. That's wheniI noticed the different settings.

Hope this helps someone.

livis n fur · Feb 18, 2013

jfcooley said:
This happened to me early this morning. I noticed that under settings the device had 000-000-0016 as my phone number and MIN as well as AABBCCDDEEFF00@hsn.sprintpcs.

All those were obviously way off. I called sprint to get the MSL and was able to change my phone number and MIN by entering ##(mel)#

Edit - change phone number and MIN. Both are the same on my line, but I'll mention my wife's nexus the MIN is different. May have to ask Sprint if you aren't sure.

After reboot (had to do above 2 times cause phone number didn't stick first time) o entered ##data# and was able to change the user name. I apologize for not remembering the steps but you can find where easily.

After all that rebooted and data/signal were good. Updated profile and PRL. No issues since.

Not sure what I did. I flashed a ROM (not mentioning because not certain the ROM was at fault) and it went to greyed bars with roaming indicator. Tried toggling data and nothing. Restored backup with same result. Restored tw backup (stock) and got same. Checked settings/about phone/status throughout. That's wheniI noticed the different settings.

Hope this helps someone.[/QUOTE

The same thing happened to me and its all good now . But im still wondering if it was the rom that I had flashed. And im the same as you I wasnt sure if it was the rom so I didnt want to say.

jfcooley · Feb 18, 2013

I may try the same ROM tonight. If it happens again I will post in the ROM thread.

WhiteiceDMSTech · Mar 20, 2013

flonker said:
You are on Sprint, correct?

Thank you so much for this.

Thank you,
Whiteice

vvMINOvv · Apr 5, 2013

billard412 said:
If you're on stock try ##72786# in the dialer

I get "connection problem or invalid MMI code."
I initially lost my imei after flashing cm10.
So I flashed stock again, Injected my imei, still no reception, then tried your code and it gave me that message.

CNexus · Apr 5, 2013

vvMINOvv said:
I get "connection problem or invalid MMI code."
I initially lost my imei after flashing cm10.
So I flashed stock again, Injected my imei, still no reception, then tried your code and it gave me that message.

You need to be connected to WiFi because that code reactivates your phone

actionbot · May 16, 2013

THANK YOU!

billard412 said:
If you're on stock try ##72786# in the dialer

THANK YOU! Worked for me. Had that issue after flashing a few roms... I have a friend that works as a tech for sprint, but after hours, he doesn't have the stuff with him at home, so would have to wait till the following day for when he got to work.. I knew XDA had good people that post.. and you're a+ in my book! rofl

Kittiesoncrack · Jul 11, 2013

billard412 said:
If you're on stock try ##72786# in the dialer

Holy crap dude. you're a life saver

DDD THANK YOU SO MUCH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

jordan2333 · Jul 13, 2013

billard412 said:
If you're on stock try ##72786# in the dialer

Thank you I had the same problem.I forgot what rom i flashed and lost signal.Flashed stock rom and this saved me.I was going crazy trying to figure this out.

mickykay · Feb 4, 2014

same issue different phone

K guys I have the same issue with gt-i9192 dual sim s4 mini. I have like a O with / in top bar and no signal. I have been at this for last week. Any help is appreciated. I have tried almost everything. Am running out of options!!!!!

[Q][Help] No service after rooting my Galaxy S3?

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