No network after flashing stock - Galaxy S III Q&A, Help & Troubleshooting

I bought samsung galaxy s3 . I dont know what its region but i live in india so i flashed indian stock rom and after flashing i have no network.
when i search network manually and I select It says network registered but when i try to call pop up come not registered on network..
I dont know what was the previous rom ?
i tried restoring /efs partition using adb which I backed up before flashing using SAManager but that doent work ..network didnt come
i tried ARIZA PATCH but after that my baseband version get unknown..
What should i do?
Help me finding aprropriate region of my device

Related

[Q] No network - Samsung Galaxy S3 i9300

Hello guys,
I`ve been watching all this topics for a while cuz I have some problems with my Galaxy S3. I`ll tell you what i did.
All worked fine, had the 4.1.1 official rom + root, then i wanted to go to 4.1.2 so i flashed an UK stock ROM. After that i kept getting the "Sim has been removed" error need restart bla bla.. so i search all around for a fix.. i changed 2 SIM cards and nothing. Then I flashed a Poland version 4.1.2 Stock. That version was better but I encountered the "Call ended" error.. calls would end after 3-4mins or i could not call at all. Then i flashed (and this is when the problem started) Stock Vodafone Spain and got "No network". I must say my IMEI/ SN all are intact.
Then I patched only radio modem from the UK ROM with Odin, but with "PHONE" option (i know i did wrong).. i wanted to change only the modem and it worked cuz i checked with *#1234#.. but from that moment not even one ROM has worked in showing me the network. On About phone says "Network: Unknown". Sometimes it connects to Vodafone but when I try to call says "No network service".
Now my phone is in second service and they can`t make it get a network on. They tryed the neverlock thing but i think was already unblocked.
I tryed rooting and using this Ariza. and were 2 versions there.. I tryed v5 only and didnt worked.
I tried the ##72786# and I get the following message: Connection Problem or invalid MMI code (found somewhere that for this code i need to have Wifi on to work?)
Now i`m thinking to get my phone back and dunno reflash with a good .pit file ? or just reRoot and try v4 Ariza.. I`m really sad, it`s been 5 days and I can`t think on nothing else to do.. I even called Samsung official service and they said to send it to them.
If you have any idea, pls need help. tnx
Check your IMEI is the same as under the battery .
Samsung will reject warranty .
jje
JJEgan said:
Check your IMEI is the same as under the battery .
Samsung will reject warranty .
jje
Click to expand...
Click to collapse
you are right.. IMEI and SN are not the same.. pff what to do now?
Restore your backed up EFS folder.
jje
But i think i backed up the EFS folder with the modified IMEI. What can i do now?
nothing. replace the motherboard
SOLVED!
Ok so tnx to JJEgan i checked all the IMEI numbers and only 2 of them were modified. Thing is before I pached the v5 Ariza, I did a EFS backup with that program. That backup img saved my phone.
Firstly I got my phone back from service with 4.2.1 official ROM (thats nice, cost me 0 $ ). I rooted with CF-Auto and used Ariza patch (v4). But my imei was still wrong so after that I used EFS_Backup_Restore_new_ADB.rar to restore my IMEI/SN with the old EFS backup then I used another programEFS Professional v2.0. I checked the option to repair No network and clicked Restore. After that I restarted my phone and I got the messages from provider with APN settings and so on.
Thank you for the help :good:
worked till first restart... now No network again, I`m not a samsung/android fan anymore..

[Q] SGS3 unlocked Only works with certain carriers after flashing!

After flashing and thinking my EFS was damaged it seems that my network carrier has locked my IMEI
I first flashed MIUI and it worked perfectly, then I flashed LiteStock Rom and I got trouble with modem, I restored EFS and installed a new modem and it worked.
But finally I installed a new rom and I had the sign "Not registered on network". I flashed lots of stock roms and restored EFS, checked my IMEI and SN were the right ones and kept having the same error.
I had another rom of a OMV carrier (Tuenti from Spain) and it worked perfectly.
The thing is that Tuenti uses the same network as my current carrier Movistar, so if the IMEI was locked it wouldn't work with tuenti either.
¿Does anybody know what happens to my Galaxy? ¿Could it be that my carrier locked my IMEI for flashing roms?
Please help, I don't know what to do, my phone works with any other carrier that it is not mine, tested lots of simcards and that is what happens, I also have a friend that had the same problem, he took the phone to a shop to unlock it and he couldn't use the phone because in the shop I think they unlocked it via root and galaxyunlock app.
Blocked IMEI by network is due to theft .
Reads more like wrong modem or CSC see faqs and guides .
Wow, thank you, I did not see any of that about galaxy S3.
Will try that solution! :angel:

no-sim problem

So my sgs3 had stock & rooted 4.3 on it. I've decided to "upgrade" it and give it some MM love with cm13. Unfortunately just after first boot during setup it says there is no sim... Also, modem and IMEI was unknown.
I have flashed stock param and got back modem and IMEI info but phone still says no sim...
In mobile network settings in prefered network type it says "Invalid Network Mode (-1). Ignore" <- what does it mean?
I tried flashing latest stock via odin but after waiting over one hour for 1st boot I gave up...
Can anyone help me?

Android 3G "No service" issue

I have sm-g360h duos. I had rooted my phone through kingoroot and later decided to unroot and even unrooted but my device recognized root during software update so I flashed firmware (downloaded from sammobile.com) through odin but after flashing a firmware, 3G is not working in my device.Later I found that firmare was corrupted during unpacking process. & I also flashed another firmware but problem remained same. I often and often checked a network and setting.There is no network and setting fault.While I change my network mode to cdma only, No service sign appears in signal bar. Call sms,2G everything running well and imei also okay but 3G is not woking. Please help me
Flash TWRP and Use a Custom ROM.The fault Is In The /system/bin I had that.
Sent from my Nexus 6P using Tapatalk
Android 3G "No Service" issue.
Can u give me tutorial about that??? I had often and often flashed firmware and recovery firmware too. But not solved.

S9+ not regestred on network

flashing cause imei number change. now i again flashed latest firmware from sammobile. everythying working fine but the network. the phone detect sim card,showing sim card, but couldn't send sms, call or internet connection.it says ""not regestred on network"".
i tried flashing andoid 9 & 10 both from sammobile. but like everytime everything works except network. pls help me to solve the problem.
Suny5 said:
flashing cause imei number change. now i again flashed latest firmware from sammobile. everythying working fine but the network. the phone detect sim card,showing sim card, but couldn't send sms, call or internet connection.it says ""not regestred on network"".
i tried flashing andoid 9 & 10 both from sammobile. but like everytime everything works except network. pls help me to solve the problem.
Click to expand...
Click to collapse
Flashing firmwares shouldn't change a IMEI you need to check and make sure what ever IMEI is on your device passes cert of check and or isn't blacklisted
If imei change to 00000 and can't connect to network, means u lost it. Hope u had backup EFS.

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