Network connectivity - Galaxy Tab Q&A, Help & Troubleshooting

I have a galaxy tab gtp1000 running g aokp Sgt job(gsm). After inserting the sim,the tab doesn't shoe any bars,but I have tested the sim on other mobiles and it works just fine.In the status section of settings it shies my carriers name and it shies mobile network disconnected.this problem even existed on cm10.The imei is also wrong ,it shows 00499... which is wrong.
Please help me get network connectivity back!!

I have pm you before, right?
Go to /sdcard /backup
Find the oldest one I think is safest.
Replace the entire /efs with the one from backup.
The latest might be already bad.
Sent from my GT-I9300 using xda app-developers app

Hey priyana,
Thanks a lot,the instructions worked,
I have network connectivity and he imei is also right
Sent from my GT-P1000 using xda app-developers app

priyana said:
I have pm you before, right?
Go to /sdcard /backup
Find the oldest one I think is safest.
Replace the entire /efs with the one from backup.
The latest might be already bad.
Click to expand...
Click to collapse
I had same problem too,
but i can't fix it
in /sdcard/backup i have 2 subfolder, they are "efs" and "efs-189"
what i must have to do?
sorry my bad english

They are just two different backups.
Use the older of the two. I have more than a dozen.
If you can't tell, try one after another.
If all fail, restock. And if stock good, try a rooted custom Rom like overcome. Then backup the /efs manually.
Sent from my GT-I9300 using xda app-developers app

Related

I need sample nv_data.bin ?

Anyone can help me to restore my IMEI and GSM working ?
Probably during error in flashing I've lost /efs data.
I have nothing there. Please help me....
Thread has been moved to Q&A section
Please double check where you are posting before starting a new thread. Good luck!
-DSB
hicz.. So do I, never know that we have to backup imei first before doing anything to our tab :crying:
Restocking usually restore efs and IMEI
Sent from my GT-I9300 using xda app-developers app
priyana said:
Restocking usually restore efs and IMEI
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Thx for your reply, but unfortunately I've tried restocking using Overcome from the link at your signature.
But it doesn't help, IMEI is still 0044XX
what was the first thing you did that broke the IMEI?
If it was broken after installing CM9/10, then your sdcard will have a backup folder with efs folder and efs-xxx folders.
priyana said:
Restocking usually restore efs and IMEI
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
priyana said:
what was the first thing you did that broke the IMEI?
If it was broken after installing CM9/10, then your sdcard will have a backup folder with efs folder and efs-xxx folders.
Click to expand...
Click to collapse
I don't know anymore, I flash a few ROMs and only then do I notice the GPS not working and IMEI is now 0044XXX.
I've restock a few times with overcome and re-partition, therefore all backup are already lost.
I found some in external SD as well.
and those aren't wiped by any repartitioning or ROM install.
Sent from my GT-P1000 using xda app-developers app
Ooh, where do you find the file ? In backup folder ? I don't have backup folder at the external sd
Yes. Backup folder.
Sorry. That means you dont have a backup.
Sent from my GT-I9300 using xda app-developers app

Ebay liars

I bought s3 i9305 from guy told me he dropped phone replaced screen and now baseband and imei null null i figured out he had restored stock rom but forgot triangle awy as 4 custom flashes i have read forums and tried everything is there way of fixing this without hardware if i do need hardware what any help pls or should i send back
Sent from my GT-N7100 using xda premium
since he flashed the phone you can complain to ebay and get your money back.
Send it back if he lied.
mygadgetgeek.com said:
I bought s3 i9305 from guy told me he dropped phone replaced screen and now baseband and imei null null i figured out he had restored stock rom but forgot triangle awy as 4 custom flashes i have read forums and tried everything is there way of fixing this without hardware if i do need hardware what any help pls or should i send back
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
If he has been flashing the phone and you have null imei and baseband, chances are that he also tried to root and flashed the package intended for the i9300.
Head over to the dev section and take a look in my sticky thread guide. Theres a param binary near the bottom of the first post. Download that and flash with odin. That should give you a working phone back.
Let me know how you get on.
Sent from my GT-I9305 using Tapatalk 2
Hi thank you for that bud i have tried param file doesnt work does not work cheers though
Sent from my GT-N7100 using xda premium
I would like to get this fixed i have managed back to stock and sign of custom roms esf pro says backup ok and restores one thing i used get ril but has no rils for this device only for i9300 but wants to flash anyway of pushing baseband myself
Sent from my GT-N7100 using xda premium
mygadgetgeek.com said:
I would like to get this fixed i have managed back to stock and sign of custom roms esf pro says backup ok and restores one thing i used get ril but has no rils for this device only for i9300 but wants to flash anyway of pushing baseband myself
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Dont update ril as it has a qualcomm ril not a samsung ril and for the same reason efs pro wont do alot as the I9305 uses a different efs structure aswell.
I am currently in the process of updating it to support qualcomm devices.
Sent from my GT-I9305 using Tapatalk 2
restored but lost imei and baseband again
lyriquidperfection said:
Dont update ril as it has a qualcomm ril not a samsung ril and for the same reason efs pro wont do alot as the I9305 uses a different efs structure aswell.
I am currently in the process of updating it to support qualcomm devices.
Sent from my GT-I9305 using Tapatalk 2
Click to expand...
Click to collapse
I managed to fix baseband an imei by using moble odin put a rom as modem and it worked
mygadgetgeek.com said:
I managed to fix baseband an imei by using moble odin put a rom as modem and it worked
Click to expand...
Click to collapse
Nice one! Enjoy your phone!
Sent from my GT-I9305 using Tapatalk 2
lyriquidperfection said:
Nice one! Enjoy your phone!
Sent from my GT-I9305 using Tapatalk 2
Click to expand...
Click to collapse
That's why I don't trust at 100% on online sells, it sad but true...

[Q] Lost imei i9000

Hi, today i install cm10.1 on my galaxy s. I don't made backup efs and i lost my IMEI :C
What I must/can doing ?
Can I live with this ?
I had this problem before. Someone said that if this happens. Than You'll need to flash a modem.
Check your Baseband first
Sent from my GT-I9000 using Tapatalk 2
Been covered many times. It usually happens when you skip a version of android.
Flash back to stock via Odin and upgrade Android in order.. froyo-GB-ICS-JB for example.
No imei will mean no network connection.... Usually.
sent using my fat fingers from the robot eating the apple...
creative0100 said:
Been covered many times. It usually happens when you skip a version of android.
Flash back to stock via Odin and upgrade Android in order.. froyo-GB-ICS-JB for example.
No imei will mean no network connection.... Usually.
sent using my fat fingers from the robot eating the apple...
Click to expand...
Click to collapse
Yea, but I never tried ICS.
Sent from my GT-I9000 using Tapatalk 2
Odp: [Q] Lost imei i9000
Hay, today I saw thats on phone memory is " backup " and in backup is efs folder. This is auto backup ? ;D
Sent from my GT-I9000 using xda premium
Odp: [Q] Lost imei i9000
Sent from my GT-I9000 using xda premium

[Q] i9305 baseband unknown/imei null/null

Hi;
got samsung i9305 baseband unknown and imei null/null , i flashed it with many firmwares tried param,imei repair,root files, nothing and tried with QPST but it doesnt detect the phone even the port is detected tried nspro,z3x no solution, any suggetion please.
Cheers.
Well, got the same problem and couldn't fix it. Somehow the Perseus kernel will fix it if you stay in this kernel.
Search for perseus and follow the instructions.
Sent from my GT-I9305 using xda app-developers app
pieneman said:
Well, got the same problem and couldn't fix it. Somehow the Perseus kernel will fix it if you stay in this kernel.
Search for perseus and follow the instructions.
Sent from my GT-I9305 using xda app-developers app
Click to expand...
Click to collapse
WTH are you talking about? Looks like his EFS got corrupted and this have nothing to do with kernel.
Try to use EFS Tool from Dev section.
Efs corrupt and perseus isn't a fix, yes that's true. But if he can't fix it like I tried with several tools (EFS also) to fix IMEI/EFS the only solution for him is using the perseus kernel. Just a workaround, that's all.
Sent from my GT-I9305 using xda app-developers app
Phone not connected with Qpst, NV item manager
I have the same problem and my phone is showing connection with qpst or Nv item manager...
Does anyone find the solution ??
Really appreciate if anyone could tell.
Samsung s3 Gt-I9305
AW: [Q] i9305 baseband unknown/imei null/null
djembey said:
WTH are you talking about? Looks like his EFS got corrupted and this have nothing to do with kernel.
Try to use EFS Tool from Dev section.
Click to expand...
Click to collapse
Got the same problem and yes Perseus kernel is just a workaround...any idea how to fix the /efs partition?
Help would be really appreciated
Sent from my GT-I9305 using xda premium
jjpro45 said:
Got the same problem and yes Perseus kernel is just a workaround...any idea how to fix the /efs partition?
Help would be really appreciated
Sent from my GT-I9305 using xda premium
Click to expand...
Click to collapse
restore your efs backup. no other solution
AW: [Q] i9305 baseband unknown/imei null/null
Glebun said:
restore your efs backup. no other solution
Click to expand...
Click to collapse
Could you explain how to?
Sent from my GT-I9305 using xda premium
sure
http://lmgtfy.com/?q=how+to+restore+efs
AW: [Q] i9305 baseband unknown/imei null/null
Glebun said:
restore your efs backup. no other solution
Click to expand...
Click to collapse
I restored my efs using a backup that I placed with QPST and no, it doesn't help at all...
If I'm asking is because I've already tried that. I know how to use the search button and Google.
This happened because I've ticked Nand full wipe on Odin, I just want to know if there's a way to fix that. I like Perseus kernel, in fact it's the kernel I've been using the last months, but I lost the possibility of installing AOSP ROMS, which is frustrating to me
Sent from my GT-I9305 using xda premium
NAND erase? send in to service
AW: [Q] i9305 baseband unknown/imei null/null
What should I say then?
Sent from my GT-I9305 using xda premium
that it doesn't work
i just experiencing this exact same issue....simply restore your efs... if you already backed up of your efs of course :cyclops:...for me, i was using hc-ktool from playstore...works like a charm
Well I tried several times to restore my efs and I'm having the same problem: I'm stuck with Perseus Kernel and can't not install any AOSP ROM (yeah frustrating).
I've recently found out that Adam Kernel makes your Modem work as Perseus does, but I'm still hoping someone can found a solution, or at least that the dev of such kernels port them kernels to AOSP ROMS.
Sent from my GT-I9305 using xda premium
You may want to check the permissions on your efs folder. There is a thread on here somewhere that gives the terminal commands. Worked like a charm for me. I found that the files were being deleted. Once permissions corrected all sorted.
Sent from my GT-I9300 using XDA Premium
Repairing IMEI
Hi All
I've got the same problem, and got my IMEI back simply by flashing this attached file with Odin:
Do it at your own risk, at least I have tried it with 100% success.... :good:
Regards,
xori.eng
IRPnet said:
You may want to check the permissions on your efs folder. There is a thread on here somewhere that gives the terminal commands. Worked like a charm for me. I found that the files were being deleted. Once permissions corrected all sorted.
Sent from my GT-I9300 using XDA Premium
Click to expand...
Click to collapse
I tried to search that on Google and here and couldn't find anything
xori.eng said:
Hi All
I've got the same problem, and got my IMEI back simply by flashing this attached file with Odin:
Do it at your own risk, at least I have tried it with 100% success.... :good:
Regards,
xori.eng
Click to expand...
Click to collapse
It didn't work
Sent from my GT-I9305 using xda premium
Ok, I found the original quote regarding setting the permissions correctly.
Originally Posted by kocweb
Here is the exact solution for this problem which i have recently had!
You have to root your phone and install Terminal Emulator from Google Play.
Open terminal emulator and type as ;
su
rm /efs/FactoryApp/keystr
rm /efs/FactoryApp/factorymode
echo -n ON >> /efs/FactoryApp/keystr
echo -n ON >> /efs/FactoryApp/factorymode
chown 1000.1000 /efs/FactoryApp/keystr
chown 1000.1000 /efs/FactoryApp/factorymode
chmod 0744 /efs/FactoryApp/keystr
chmod 0744 /efs/FactoryApp/factorymode
reboot
You now should not see the that message anymore. Its because of an EFS corruption. ( Thanks to yesilcin*com (sawgent) ) for exact solution.
Hope it helps!!!
Click to expand...
Click to collapse
Try this and hopefully it should do the job.
You can use either adb or a shell app.
IRPnet said:
Ok, I found the original quote regarding setting the permissions correctly.
Try this and hopefully it should do the job.
You can use either adb or a shell app.
Click to expand...
Click to collapse
Thanks for your help, but unfortunately it didn't work too
I don't know what to do. I'm stuck with Perseus Kernel and I can't send my phone to service
Sent from my GT-I9305 using xda premium

[Q] GT-P1000N (Latin Model)

Hi everyone,
As i stated, I have the gt-p1000n running stock GB 2.3.3
All info is in attached screenshots
My tab has been bricked and resurrected.
My problem is, the network capabilities are gone.
Will not recognize sim, yet will reboot when removed or inserted
I have read previous threads and searched, but the N model is hard to find for.
As i found in other threads, I have tried flashing: JP3 Modem (Gingerbread) 2.3.3 for P1000N by HumerOS but still doesnt work.
Should I flash a different modem.bin?
Will it brick me again?
Any and all help appreciated
Please help........someone.......anyone???
People use the word brick lightly.
You can brick your tab if you flash a Rom made for another device.
Or if the flashing was interrupted when it was writing the bootloader.
There is no way you brick your tab by flashing different modem.
Just go ahead and flash as many modems as you like.
Sent from my GT-N7100 using xda app-developers app
priyana said:
People use the word brick lightly.
You can brick your tab if you flash a Rom made for another device.
Or if the flashing was interrupted when it was writing the bootloader.
There is no way you brick your tab by flashing different modem.
Just go ahead and flash as many modems as you like.
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
Yet again you assist me sir, Thank You!
priyana said:
People use the word brick lightly.
You can brick your tab if you flash a Rom made for another device.
Or if the flashing was interrupted when it was writing the bootloader.
There is no way you brick your tab by flashing different modem.
Just go ahead and flash as many modems as you like.
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
Ok, so I flashed all of the GB modems from here:
http://forum.xda-developers.com/showthread.php?t=1069727
No change
Have tried other SIM cards?
Sent from my GT-N7100 using xda app-developers app
Tried two. I can tty to get a few more.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Try checking the rotohammer carrier unlock guide in my signature.
geno93n0 said:
Try checking the rotohammer carrier unlock guide in my signature.
Click to expand...
Click to collapse
Will try, thanks!!
Ok So i think i know what the problem is. When I checked the IMEI using *#06# it showed a different number than the number on the back casing. I think they (repair shop) might have changed my IMEI after JTAG??
Also, EFS backup shows different IMEI (same as in *#06#) and Serial number than on unit.
Suggestions?
the IMEI you posted earlier looks legit.
Could they have changed the back cover of your unit or the motherboard?
Usually, flashing a stock ROM from Samsung using Odin will restore your IMEI.
priyana said:
the IMEI you posted earlier looks legit.
Could they have changed the back cover of your unit or the motherboard?
Usually, flashing a stock ROM from Samsung using Odin will restore your IMEI.
Click to expand...
Click to collapse
I cant say for sure about the MB, but I doubt they would replace the MB for free. The back cover is mine. There are distinct markings on it that I confirm it.
Now I remember, I also had this problem. My IMEI was also changed after flashing a ROM and I lost my network service, I think it was a CM nightly as well. I remember just getting the next nightly and it was fixed.
Sent from my GT-P1000 using xda app-developers app
geno93n0 said:
Now I remember, I also had this problem. My IMEI was also changed after flashing a ROM and I lost my network service, I think it was a CM nightly as well. I remember just getting the next nightly and it was fixed.
Sent from my GT-P1000 using xda app-developers app
Click to expand...
Click to collapse
Right now the Tab is stock Froyo with the exception of being rooted. No Custom recovery yet and no ROM. I'm trying to fix the issue at hand first (already solved one problem).
scorpionhd2 said:
Right now the Tab is stock Froyo with the exception of being rooted. No Custom recovery yet and no ROM. I'm trying to fix the issue at hand first (already solved one problem).
Click to expand...
Click to collapse
Yeah, what I'm saying is that maybe flashing a new ROM might solve it. I don't think you've got anything to lose now, right?
Ok so as the screenshot shows I have a new nightly Rom, updated and all, yet the IMEI is the same (not the correct one), and the S/N changed yet again to a different number.
Im lost
Mods, please close

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