[Help] no signal/network after flashing U or T firmware - Samsung Galaxy S7 Questions and Answers

Hey guys.. I got a 930P that I recently picked up. It's unlocked andI put the newest U firmware on it from sammobile.. I put my T-mobile SIM card in there and nothing.. No signal.. Has a good IMEI, sees my-mobile number but doesn't associate with the network at all. Calling t-mobile was no help, they told me device is bad.. I also tried flashing latest 930T firmware also - same deal.. It sees T-Mobile APN settings but won't connect, period.. Anyone have suggestions before I return this device? THanks

leonzwrx said:
Hey guys.. I got a 930P that I recently picked up. It's unlocked andI put the newest U firmware on it from sammobile.. I put my T-mobile SIM card in there and nothing.. No signal.. Has a good IMEI, sees my-mobile number but doesn't associate with the network at all. Calling t-mobile was no help, they told me device is bad.. I also tried flashing latest 930T firmware also - same deal.. It sees T-Mobile APN settings but won't connect, period.. Anyone have suggestions before I return this device? THanks
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Do you get WiFi at all?

i did, yeah. wound up returning the phone because whoever sold it did something fishy with it, although it didn't show up on any blacklists

Related

[Q] [q] after unlocking sim card...no one accepted

HI GUYS...
I UNLOCKED MY SAMSUNG GALAXY INFUSE AS USUAL, AND ITS OK "UNLOCKED"...
BUT WHEN I INSERT MY SIM CARD IT WORKED FOR FEW MINUTES, AFTER THAT IT SAYS NO SERVICE AND THERE IS NO SIGNAL AT ALL... BUT SOMETIME I GOT SIGNALS BUT WITHOUT REGISTERED NETWORK.
NOTE:
MABY THE PROBLEM FROM THE IMEI NUMBER, BECAUSE I GOT IT WRONG , IT IS LIKE IN THE ATTACHMENT.
PLEASE GUYS HELP ME ....
Yep, a borked imei number will not allow you to connect to your cellular network...
I'm guessing that your efs folder wasn't backed up... you can try this...http://forum.xda-developers.com/showthread.php?t=881162
I haven't tried this but good luck.
thank you brassguy...
but does this work for infuse 4G ?
In addition, I read that we can change the IMEI number using the ADB, or is there another way to do this?
Also, what about the GSII_repair app, can I use it for my phone (infuse 4G)?
i had this problem last night where i flashed a rom. i return it to stock and imei showed up.
was having a imei" unknown error" and i backed up now on my computer.
ps ebay sales unlock service for 0.99$ if you didn't buy the code and just hacked it with hex or whatever
mine is already unlocked and it's permanent
i do travel over seas alot
But i returned mine to stock many times but the imei number still like this.
I did no get you in the third line???
BrassGuy said:
Yep, a borked imei number will not allow you to connect to your cellular network...
I'm guessing that your efs folder wasn't backed up... you can try this...http://forum.xda-developers.com/showthread.php?t=881162
I haven't tried this but good luck.
Click to expand...
Click to collapse
It does not work for me....
Because I did not find the those numbers in hexeditor
THERE ARE 3 Total Lines you will need to edit:
00188008
00188010
00188020
or maby I did something wrong
Please guys someone help me to solve this problem ,because I can not use the phone....
No one have ever faced or seen this problem with someone and solved??

[Q] **Not Registered On Network, Galaxy s3 GT-I9300. Help!!

Hi all,
looking for some solid advice on what to do next, My Gt-I9300 is originally from ireland, on the network meteor.
i got it factory unlocked, then i moved to western australia , started using a telstra sim everything worked fine, then when i tried to make a call it would make no sound during call on both phones, (mine and the one im calling) when i hang up i would loose signal and then it would come back after a few seconds, so after doing factory restets ect, nothing worked. i then rooted the phone using odin to see if anything would change with the no sound during calll problem , the rooted file i used was for the telstra network (australia) then when trying to make calls it says not registered on network, went into network settings and manually tried to select the telstra network , still no luck. and now to where im at now , i unrooted my phone using odin the unroot file i downloaded was for the meteor network(ireland) one the phone originally came on . still the same problem with not registered on network. i will admit im familiar with what im doing but not a expert , please help i need my phone :crying:
can someone please help any advice will be appreciated :good:
Hi
First you have to root again, install busybox then install Ariza Patch for IMEI, click on patch 0.5 and you should be fine. I think everyone who has upgraded to leaked JB 4.2.2 ended up in the same situation.
http://forum.xda-developers.com/showthread.php?t=1918601
I hope this helps?
FIX FOUND!!
EgAiddo said:
Hi all,
looking for some solid advice on what to do next, My Gt-I9300 is originally from ireland, on the network meteor.
i got it factory unlocked, then i moved to western australia , started using a telstra sim everything worked fine, then when i tried to make a call it would make no sound during call on both phones, (mine and the one im calling) when i hang up i would loose signal and then it would come back after a few seconds, so after doing factory restets ect, nothing worked. i then rooted the phone using odin to see if anything would change with the no sound during calll problem , the rooted file i used was for the telstra network (australia) then when trying to make calls it says not registered on network, went into network settings and manually tried to select the telstra network , still no luck. and now to where im at now , i unrooted my phone using odin the unroot file i downloaded was for the meteor network(ireland) one the phone originally came on . still the same problem with not registered on network. i will admit im familiar with what im doing but not a expert , please help i need my phone :crying:
Click to expand...
Click to collapse
hey i had the same prob wid my gs3, nd i too tried everything possible ( almost ) including the efs backup blah blah!! backporting blah blah ablosutely nuttin worked!
went to spamsung service center n they said plz replace ur mainboard!! cost about 130$ in india!
neway
luckily today i wanted to checkout the official android 4.3 rom for sg3 and so i flashed it on to my phone using odin nd der we go!!
my imei is no longer 0049***!!!
is back to original nd i can make calls and send/receive txt msgs!!!
link to download and detailed instruction on how to flash is at sammobile.com
i hope it helps you guys! cheers nd thanks everybody for all the help
Finally solved with me by another way
EgAiddo said:
Hi all,
looking for some solid advice on what to do next, My Gt-I9300 is originally from ireland, on the network meteor.
i got it factory unlocked, then i moved to western australia , started using a telstra sim everything worked fine, then when i tried to make a call it would make no sound during call on both phones, (mine and the one im calling) when i hang up i would loose signal and then it would come back after a few seconds, so after doing factory restets ect, nothing worked. i then rooted the phone using odin to see if anything would change with the no sound during calll problem , the rooted file i used was for the telstra network (australia) then when trying to make calls it says not registered on network, went into network settings and manually tried to select the telstra network , still no luck. and now to where im at now , i unrooted my phone using odin the unroot file i downloaded was for the meteor network(ireland) one the phone originally came on . still the same problem with not registered on network. i will admit im familiar with what im doing but not a expert , please help i need my phone :crying:
Click to expand...
Click to collapse
Dear All
This problem come to me many time , without any solved but finally i found the fixer , easy without patch and root
Today , i tray to install the latest android software from same mobile exactly UK Android 4.3 FOR S3 I9300 , THATS BECAUSE I HAVE THIS PROBLEM AGAIN , AFTER I INSTALLED FRWARE ANDRIOD 4.3 UK EVERY THING IS BACK LIKE BEFORE THE IMEI # BACK & THE NETWORK IS BACK .
WITH MY RESPECT
ZOHER:good:
solved
EgAiddo said:
Hi all,
looking for some solid advice on what to do next, My Gt-I9300 is originally from ireland, on the network meteor.
i got it factory unlocked, then i moved to western australia , started using a telstra sim everything worked fine, then when i tried to make a call it would make no sound during call on both phones, (mine and the one im calling) when i hang up i would loose signal and then it would come back after a few seconds, so after doing factory restets ect, nothing worked. i then rooted the phone using odin to see if anything would change with the no sound during calll problem , the rooted file i used was for the telstra network (australia) then when trying to make calls it says not registered on network, went into network settings and manually tried to select the telstra network , still no luck. and now to where im at now , i unrooted my phone using odin the unroot file i downloaded was for the meteor network(ireland) one the phone originally came on . still the same problem with not registered on network. i will admit im familiar with what im doing but not a expert , please help i need my phone :crying:
Click to expand...
Click to collapse
update to 4.2.2
root device
google "ariza_jbv02.zip", put it on root folder and install through CWM
everything will be ok
update
try to update higher android version
EgAiddo said:
Hi all,
looking for some solid advice on what to do next, My Gt-I9300 is originally from ireland, on the network meteor.
i got it factory unlocked, then i moved to western australia , started using a telstra sim everything worked fine, then when i tried to make a call it would make no sound during call on both phones, (mine and the one im calling) when i hang up i would loose signal and then it would come back after a few seconds, so after doing factory restets ect, nothing worked. i then rooted the phone using odin to see if anything would change with the no sound during calll problem , the rooted file i used was for the telstra network (australia) then when trying to make calls it says not registered on network, went into network settings and manually tried to select the telstra network , still no luck. and now to where im at now , i unrooted my phone using odin the unroot file i downloaded was for the meteor network(ireland) one the phone originally came on . still the same problem with not registered on network. i will admit im familiar with what im doing but not a expert , please help i need my phone :crying:
Click to expand...
Click to collapse
I was having a similar issue on my friend's i9300. I upgraded his phone to 4.3 but got this issue. Unfortunately, I didn't back up his EFS so lost the network after upgrade (NOT REGISTERED ON NETWORK).
I Tried everything from Ariza patch to going back to 4.1 MG4 firmware & zuluman patching the MG4 modem but nothing worked at all.
I was at my wit's end when as a last resort I installed I9300XXUGNB6 firmware through Odin. Then rooted it, installed CWM recovery. After that I installed "Patched_Modem_I9300XXEMG4" zip through CWM (ATTACHED).
There was still no network & IMEI turned to 000000000.
After that I downloaded Boeffla 5.1 kernel (for i9300) and VOILA, I got network & IMEI was restored. I do not know how it worked but it solved my problem. You can download Boeffla kernel from his website boeffla-kernel. de
I promised myself to always backup EFS & never to upgrade anyone's phone again except my own. Too much liability.
I hope it works for you.

Help for Bad IMEI

I bought an S7 recently with an IMEI blocked by T-Mobile.
Update: I have, successfully, flashed to G930U. This was done through Odin following this thread: https://forum.xda-developers.com/tm...g930u-firmware-to-t-mobile-s7-t3533918/page1
Good news is that when I insert a different SIM card I now get access to a prompt asking for an unlock code. Maybe I can unlock it for Verizon, Sprint, etc?
Bad news is that I currently am on MintSIM which use T-Mobile networks. So it cannot be activated.
More information: I did ring up multiple times to T-Mobile and managed to get a difinitive answer that "Yes" it is still being financed, and therefore only the account holder can activate it.
I think my best option is to sell it making the bad IMEI number clear. Or to purchase a broken S7 in hopes of replacing the IMEI number physically.
Previously:
I want to switch firmware so I can unlock the IMEI without going through T-Mobile. Would it be possible to use Odin to flash Sprint firmware or Deoxed firmware?
I rooted the S7 and tried to install the Deoxed firmware through FlashFire but the S7 interrupted and restored it to default firmware. Which app files do I need to disable to stop this happening?
Jack Hammered said:
I bought an S7 recently with an IMEI blocked by T-Mobile.
I want to switch firmware so I can unlock the IMEI without going through T-Mobile. Would it be possible to use Odin to flash Sprint firmware or Deoxed firmware?
I rooted the S7 and tried to install the Deoxed firmware through FlashFire but the S7 interrupted and restored it to default firmware. Which app files do I need to disable to stop this happening?
Click to expand...
Click to collapse
There is a guy that can change or unlook your IMEI, look in the forum you can find him. Change the rom or firmware does not change your IMEI.
hope it can help
pippone121263 said:
There is a guy that can change or unlook your IMEI, look in the forum you can find him. Change the rom or firmware does not change your IMEI.
hope it can help
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Click to collapse
I have changed the IMEI number to an old phone of mine. Which is legal AFAIK, but it still isn't letting the phone be unlocked by T-Mobile.
Jack Hammered said:
I have changed the IMEI number to an old phone of mine. Which is legal AFAIK, but it still isn't letting the phone be unlocked by T-Mobile.
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Check my signature

N950USQS5CRF6 not getting the August update

It was originally an unlocked model straight from Samsung. I flashed AT&T firmware so I could use some features. I figured this build number would receive OTA updates.
i never got ota updates on my unlocked phone. I've installed 100% at&t stock firmware.
babbar559 said:
i never got ota updates on my unlocked phone. I've installed 100% at&t stock firmware.
Click to expand...
Click to collapse
Someone told me if I register my imie and sim number with AT&T I should start getting updates. Not only did I not get the update after giving them the info, wifi calling doesn't work anymore.
10pmStalker said:
Someone told me if I register my imie and sim number with AT&T I should start getting updates. Not only did I not get the update after giving them the info, wifi calling doesn't work anymore.
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Click to collapse
imei and sim is registered maybe that's why wifi calling never worked on mine. lol
Current stock is N950USQU5CRG7
You can dl the update.zip file HERE, copy it to your ext SD card and flash it from recovery. This WILL factory reset
babbar559 said:
imei and sim is registered maybe that's why wifi calling never worked on mine. lol
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Click to collapse
Haha yes, that's exactly it. I found my old Note 7 box, grabbed the sim from that and told at&t I need to update it. Wifi calling working again.
kangi26 said:
Current stock is N950USQU5CRG7
You can dl the update.zip file HERE, copy it to your ext SD card and flash it from recovery. This WILL factory reset
Click to expand...
Click to collapse
Got an error, I'm on CRF6 currently.
oh wait so if we got the unlocked version straight from SS and if we give ATT an ATT phone, we can have wifi calling? O_O?
10pmStalker said:
Haha yes, that's exactly it. I found my old Note 7 box, grabbed the sim from that and told at&t I need to update it. Wifi calling working again.
Got an error, I'm on CRF6 currently.
Click to expand...
Click to collapse
Do you have ATT Rom on it or it the stock Rom from Samsung?
Also, can I ask what you told them to change the IMEI?
I called and they were telling me I can't change the IMEI and that even if we do change it, it would only work on the previous phone... which seems bogus...
sixk said:
Do you have ATT Rom on it or it the stock Rom from Samsung?
Also, can I ask what you told them to change the IMEI?
I called and they were telling me I can't change the IMEI and that even if we do change it, it would only work on the previous phone... which seems bogus...
Click to expand...
Click to collapse
Was originally unlocked direct from Samsung, I flashed AT&T software.
I just flashed the update on my own, I don't know if I'll ever get OTA.
I had no problem changing IMEI. It had my old S7 edge IMEI, I used chat to change it to my current Note 8. Then quickly had them switch it to Note 7 IMEI once WIFI calling wouldn't work. They asked no questions both times. Just told them I upgraded phones and need to update my IMEI. I've never called them, just used the chat feature.
10pmStalker said:
Was originally unlocked direct from Samsung, I flashed AT&T software.
I just flashed the update on my own, I don't know if I'll ever get OTA.
I had no problem changing IMEI. It had my old S7 edge IMEI, I used chat to change it to my current Note 8. Then quickly had them switch it to Note 7 IMEI once WIFI calling wouldn't work. They asked no questions both times. Just told them I upgraded phones and need to update my IMEI. I've never called them, just used the chat feature.
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Click to collapse
Thanks Stalker...
Now I have to decide if I want to flash ATT firmware or not...
Hate having to re-setup my phone haha.
So you just used Odin and the ATT firmware correct?
FYI I have been getting ATT OTA updates on my stock SS direct Note 8.
sixk said:
Thanks Stalker...
Now I have to decide if I want to flash ATT firmware or not...
Hate having to re-setup my phone haha.
So you just used Odin and the ATT firmware correct?
FYI I have been getting ATT OTA updates on my stock SS direct Note 8.
Click to expand...
Click to collapse
Yep, used Odin and the ATT firmware. I just back everything up using smart switch external storage feature and backed up my Nova Launcher settings. Only thing I don't like is I have to tweak all the settings over again.
10pmStalker said:
Yep, used Odin and the ATT firmware. I just back everything up using smart switch external storage feature and backed up my Nova Launcher settings. Only thing I don't like is I have to tweak all the settings over again.
Click to expand...
Click to collapse
One last question.
Did you need to give them the old SIM#?
I have info in my email before returning my Note 7 but nothing on the SIM card # and wonder if that might give me some trouble later on for wifi calling.
sixk said:
One last question.
Did you need to give them the old SIM#?
I have info in my email before returning my Note 7 but nothing on the SIM card # and wonder if that might give me some trouble later on for wifi calling.
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Click to collapse
Didn't give them any SIM info. Just IMEI
10pmStalker said:
Didn't give them any SIM info. Just IMEI
Click to expand...
Click to collapse
Cool... I am going to give them the IMEI for my old Note 7 with stock Unlocked firmware.
Just to see if that works... if not I am going to have to flash
Thanks for the info Stalker
You won't get AT&T OTA unless you're in AT&T network with MCC 310 MNC410 (Red pock GSMA has this so it can get AT&T OTA update).
power_book said:
You won't get AT&T OTA unless you're in AT&T network with MCC 310 MNC410 (Red pock GSMA has this so it can get AT&T OTA update).
Click to expand...
Click to collapse
Could you explain this a bit? I don't know what any of that means
You need active AT&T sim cards or AT&T MVNO (Red pockets(310 410 but not Freedompop 310 170) sim card in your phone to get AT&T software update.
10pmStalker said:
Could you explain this a bit? I don't know what any of that means
Click to expand...
Click to collapse
power_book said:
You need active AT&T sim cards or AT&T MVNO (Red pockets(310 410 but not Freedompop 310 170) sim card in your phone to get AT&T software update.
Click to expand...
Click to collapse
My sim card is direct from AT&T. I've been using the same one since I purchased and activated the Note 7 in an AT&T store
Did you flash your phone with AT&T firmware including home CSC or just part of AT&T firmware?
You have to flash complete AT&T firmware to get AT&T OTA.
10pmStalker said:
My sim card is direct from AT&T. I've been using the same one since I purchased and activated the Note 7 in an AT&T store
Click to expand...
Click to collapse
power_book said:
Did you flash your phone with AT&T firmware including home CSC or just part of AT&T firmware?
You have to flash complete AT&T firmware to get AT&T OTA.
Click to expand...
Click to collapse
Flashed it including home CSC. Wanted everything so I could use wifi calling since that was the whole point in the first place.

Can I flash my SM-A716U with SM-A716U1 firmware?

I have a Sprint A71 5G that I put onto the Cricket network because the IMEI checker says it is compatible. It worked for a week and then today I am unable to make/receive phone calls (can still send texts and access mobile data though). Some digging suggests this because only the SM-A716U1 is whitelisted for AT&T/Cricket (in which case why is my IMEI checking out, but I digress). So does anyone know if I can flash the SM-A716U with SM-A716U1 firmware? Thanks for any help.
fdbryant3 said:
I have a Sprint A71 5G that I put onto the Cricket network because the IMEI checker says it is compatible. It worked for a week and then today I am unable to make/receive phone calls (can still send texts and access mobile data though). Some digging suggests this because only the SM-A716U1 is whitelisted for AT&T/Cricket (in which case why is my IMEI checking out, but I digress). So does anyone know if I can flash the SM-A716U with SM-A716U1 firmware? Thanks for any help.
Click to expand...
Click to collapse
Well, I went ahead a just did it. If anyone wondering the answer is yes and it fixed my calling problem as well.
fdbryant3 said:
Well, I went ahead a just did it. If anyone wondering the answer is yes and it fixed my calling problem as well.
Click to expand...
Click to collapse
You flashed via ODIN?
And where did you find the file to flash to carrier unlocked U1?

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