Baseband problem - always unknown - Optimus One, P500, V General

Hi guys,
I've a strange problem... I tried to flash cyanogenmod 7 on lg p500 but i got uknown baseband... so, i changed it to 10E without success.
Now, i restored V20G official 2.3.3 firmware and it is still unknown. I can't choose any network.
I tried too, to flash on V20G the 20G baseband but the problem is always here.
Is there a way to solve this? Maybe it's an HW problem?
Thanks.
PS. Sim card is not recognized, i tried 3 diff sims!

Flash new baseband.. flashing zip stock firmware wont change baseband!!

You can't just flash the rom to change the baseband, you have to use either the KDZ updater or LG's official upgrade. Some people have problems with KDZ, I personally have never had any. There's a good guide on it here http://forum.xda-developers.com/showthread.php?t=1060121 except instead of using the v10E firmware like in the guide, you should use a v20 firmware, it really doesn't matter which v20 (V20A, V20C, V20G). You could also use LG's official updater which is safer, it's available on their website. Make sure to backup anything you don't want to lose because flashing this new firmware will wipe everything, I would even backup your sd card. You will also lose root and your custom recovery, which can be gotten back very easily.

ShotMe said:
Hi guys,
I've a strange problem... I tried to flash cyanogenmod 7 on lg p500 but i got uknown baseband... so, i changed it to 10E without success.
Now, i restored V20G official 2.3.3 firmware and it is still unknown. I can't choose any network.
I tried too, to flash on V20G the 20G baseband but the problem is always here.
Is there a way to solve this? Maybe it's an HW problem?
Thanks.
PS. Sim card is not recognized, i tried 3 diff sims!
Click to expand...
Click to collapse
Hi,
I had same issue. I had tried more than 10 sim card but my phone wont recognize any of them. I tried to change baseband, tried different ROMs and even flashed LG original firmware but to no avail. Then i showed my mobile to showroom and they repaired it. The problem was with hardware antena or pcb or something like that. I think you have the same issue like i had. After repair my mobile works perfectly and detect every sim card. Show your mobile to showroom and Gud luck.

Related

[Q][HELP] Galaxy S3 emergency calls only

Hello guys, I have read many topics about this and I have a problem. I flashed 4.1.2 stock firmware over that same firmware that was installed ( i deleted some files like all share that i need again) and now I can't connect to network, it says it has registered but in the notifications i have Unable to connect to my carrier.
The phone is factory unlocked and i have backed up my EFS and tryed to restore but nothing. The SIM card is working, i tried in other phone, i also tried downloading and installing the original phone firmware also 4.1.2 from Kies, but nothing.
My IMEI is correct, also my S/N is correct, it is not generic or 000000..
I have also tried the ARIZA patch but nothing. I am having the signal and everything is working but i cannot register to network.
How can i fix this guys, and please, don't say search, believe me I've searched alot.
Some more information:
current rom (originally shipped with phone): I9300XXEMG4
One set your mobile network up manually .
Two flash stock rom with correct modem and csc for your network .
Contact your network .
Return phone to vendor or take it to a service centre .
lsalamun said:
Hello guys, I have read many topics about this and I have a problem. I flashed 4.1.2 stock firmware over that same firmware that was installed ( i deleted some files like all share that i need again) and now I can't connect to network, it says it has registered but in the notifications i have Unable to connect to my carrier.
The phone is factory unlocked and i have backed up my EFS and tryed to restore but nothing. The SIM card is working, i tried in other phone, i also tried downloading and installing the original phone firmware also 4.1.2 from Kies, but nothing.
My IMEI is correct, also my S/N is correct, it is not generic or 000000..
I have also tried the ARIZA patch but nothing. I am having the signal and everything is working but i cannot register to network.
How can i fix this guys, and please, don't say search, believe me I've searched alot.
Some more information:
current rom (originally shipped with phone): I9300XXEMG4
Click to expand...
Click to collapse
Install an EMG4 modem or earlier
JJEgan said:
One set your mobile network up manually .
Two flash stock rom with correct modem and csc for your network .
Contact your network .
Return phone to vendor or take it to a service centre .
Click to expand...
Click to collapse
I tried manually set up network, tried manual APN's, also tried flashing stock rom for my network and generic international firmware, nothing worked.
I'll try flashing EMG4 modem to see if it will work.
Edit: EMG4 modem already installed, so not working.
Edit2: I tried ARIZA patch v06, is it only for 4.3 or does it work on 4.1.2 android, i know that v05 is for 4.1.2 but i can't find link anywhere, does anyone have link to version 05 of ARIZA patch?
Edit3: Tried ARIZA patch v05 and IMEI got 00499... going to get it serviced.
lsalamun said:
I tried manually set up network, tried manual APN's, also tried flashing stock rom for my network and generic international firmware, nothing worked.
I'll try flashing EMG4 modem to see if it will work.
Edit: EMG4 modem already installed, so not working.
Edit2: I tried ARIZA patch v06, is it only for 4.3 or does it work on 4.1.2 android, i know that v05 is for 4.1.2 but i can't find link anywhere, does anyone have link to version 05 of ARIZA patch?
Edit3: Tried ARIZA patch v05 and IMEI got 00499... going to get it serviced.
Click to expand...
Click to collapse
Before sending the phone to service center dont forget to reset the flash counter. else your warranty will be dismissed..
suyash1629 said:
Before sending the phone to service center dont forget to reset the flash counter. else your warranty will be dismissed..
Click to expand...
Click to collapse
I'll take it to local servicer, not to official service, yes i have waranty but it is in another country, and by local servicer it'll cost me around 15$ to fix this and it's better than me going to another country and wait like 2 weeks to get it solved
I had this problem too. Is your SD card slot working?
Both slots (sim and SD card) where broken on my S3.
In the Service Centre they replaced the mainboard. After that all was working again.
Don't forget to reset the counters and flash a original ROM from samsung through Odin.
Good luck.
Sent from my GT-I9300 using xda premium
Ic3y83 said:
I had this problem too. Is your SD card slot working?
Both slots (sim and SD card) where broken on my S3.
In the Service Centre they replaced the mainboard. After that all was working again.
Don't forget to reset the counters and flash a original ROM from samsung through Odin.
Good luck.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Yes, everything is working, phone is barely new, guy at the service center got it repaired with some kind of a box called z3x box and it's aproprietary tool that can generate the IMEI with no mather what error it has in efs.

[Q] IMEI and S/N Issue AGAIN! Help!

Hi guys, I must have read a hundred posts about this issue to no avail.
I recently rooted an old S3 GT I9300 using CF-Auto-Root and Odin. I was sure I backed up the EFS folder, but it would appear I didnt. Now I am runnning the Paranoid Android 3.0 ROM on the device with absolutley no mobile network/signal and although i have the IMEI written down the S/N seems to have changed to a generic 15 digit number as opposed to the original RCF**** or whatever it should be.
Ive tried Kies and re-installing a stock ROM which is both hard to get hold of and doesnt seem to want to unzip from CWM Recovery even after cl;earing the Caches and doing a factory reset. I've also tried re-writting the bin file using a hex code app and terminal with no luck, and EFS Pro only seems to make me think ive restored the EFS by backing up the already corrupt one and restoring that....
It is possible to rectify my EFS issue (nv_data.bin file I assume) with only a written down IMEI and no serial?? if so please advise... as Im seriously stuck and although ive considered using a friends efs folder im sure this is probably illegal...
HELP, Thankyou
oh..and...
It occurs to me that the guy to talk to is spocky12, yet i have yet to pm him pending your advice.... thankyou for any help i may receive..
Hi im also in the same position ive tried loads of stock roms for the UK as thats where i am... to no avail ive tried the original 4.0.1 rom all the way up to the latest 4.4.2 rom and each time the imei number is 0000999......... ive tried modem patches most of which are from looking through the xda site but nothing seems to work.... i could never back the efs up as when i had the phone it was in a constant loop so never knew which software/modem/firm it actually had on it as i could not get past the samsung logo. but since i have flashed latest android for the phone it will boot in fine just wont connect to a network and imei number is wrong ive been days trying to figure this out :crying::crying: Please Help!
dejay89 said:
Hi im also in the same position ive tried loads of stock roms for the UK as thats where i am... to no avail ive tried the original 4.0.1 rom all the way up to the latest 4.4.2 rom and each time the imei number is 0000999......... ive tried modem patches most of which are from looking through the xda site but nothing seems to work.... i could never back the efs up as when i had the phone it was in a constant loop so never knew which software/modem/firm it actually had on it as i could not get past the samsung logo. but since i have flashed latest android for the phone it will boot in fine just wont connect to a network and imei number is wrong ive been days trying to figure this out :crying::crying: Please Help!
Click to expand...
Click to collapse
Hi Dejay, its good to know im not the only one. have you tried using the Kies program to reinstall stock firmware, did that change anything? Also not sure if you tried this http://www.youtube.com/watch?v=JqLK_2I-SBM method but it didnt work for me, the HEx lines he refers to dont exist in my nv-data.bin.
Coincidentally, thats exactly how i acquired this issue, it stopped booting so i factory reset deviced, then backedup and rooted, then installed custom ROM and somehow lost backed up /efs .Im now showing an 000049 IMEI and tried modem patches, stock roms etc. and no luck. my serials all messed up too and i cant connect to any form of mobile network.
I just changed ROM again as i couldnt get the right Gapps to flash with Paranoid Android Rom 3.0 - now flashing Dirty Unicorns v3.8 from here and all working beautifully except no signal, wrong IMEI and S/N - I am by no means a PRO at all this and so im rather stuck like yourself..
Hopefully we'll be saved?!

Emergeny calls Out of service area

Hello everyone,
First of all i want to thank you for all this guides that i was trying to use here
So here's my story.
I got Samsung Galaxy S3 I9300 with bootloop issue so i decide to fix this by myself.
I was trying to install fimware using KIES but i doesn't fix my issue.
Then i was trying to search for right rom on several websites.
The right one and only working one was 4.0.4 with orange brand logo.
So i was excited that its finally working
Then i realize that my imei is null and my sim card is not working.
So i was trying to restore EFS using several tools and methods.
Finally i got it default IMEI 0049 but it was still not working.
My phone is not qualcomm based model so i cannot use nv item reader writer as it's required to edit IMEI
Even after applying phonutil patch my device is not being recognize as Qualcomm one.(because it's not)
So i was still looking for another way to change my imei manually as i have my original one on the box and under battery.
Finally I realized that i cannot make even Emergency calls it comes with message Out of service area.
So i was trying to apply few modem and radio updates to my phone but none of them are helping.
Anyone have similiar issue?
I have another Galaxy S3 that is working can i copy imei or whole system to my not working phone?
I know that after that i cannot use other device, but thats ok if its possible.
Rockafella71 said:
Hello everyone,
First of all i want to thank you for all this guides that i was trying to use here
So here's my story.
I got Samsung Galaxy S3 I9300 with bootloop issue so i decide to fix this by myself.
I was trying to install fimware using KIES but i doesn't fix my issue.
Then i was trying to search for right rom on several websites.
The right one and only working one was 4.0.4 with orange brand logo.
So i was excited that its finally working
Then i realize that my imei is null and my sim card is not working.
So i was trying to restore EFS using several tools and methods.
Finally i got it default IMEI 0049 but it was still not working.
My phone is not qualcomm based model so i cannot use nv item reader writer as it's required to edit IMEI
Even after applying phonutil patch my device is not being recognize as Qualcomm one.(because it's not)
So i was still looking for another way to change my imei manually as i have my original one on the box and under battery.
Finally I realized that i cannot make even Emergency calls it comes with message Out of service area.
So i was trying to apply few modem and radio updates to my phone but none of them are helping.
Anyone have similiar issue?
I have another Galaxy S3 that is working can i copy imei or whole system to my not working phone?
I know that after that i cannot use other device, but thats ok if its possible.
Click to expand...
Click to collapse
Have you tried patched modem and kernel? Did you read the guides on xda >> http://forum.xda-developers.com/galaxy-s3/general/ref-imei-efs-stuff-i9300-including-t2393289 << and no you cannot copy imei from another phone.
tallman43 said:
Have you tried patched modem and kernel? Did you read the guides on xda >> http://forum.xda-developers.com/galaxy-s3/general/ref-imei-efs-stuff-i9300-including-t2393289 << and no you cannot copy imei from another phone.
Click to expand...
Click to collapse
I tried everything from this guide.
Regarding patch:
4.0.4-I9300BVALE4 firmware is the only one working on my Samsung
Patched modem and kernel that i found and try it are XXUGMK6.
Maybe they are different one or dedicated to my firmware
Rockafella71 said:
I tried everything from this guide.
Regarding patch:
4.0.4-I9300BVALE4 firmware is the only one working on my Samsung
Patched modem and kernel that i found and try it are XXUGMK6.
Maybe they are different one or dedicated to my firmware
Click to expand...
Click to collapse
The reason you can't make calls is because at some point your phone software was on 4.3 this means your efs as changed to efs v2. Now because your current firmware is at 4.0.4 then your efs can't read this because 4.0.4 is efs v1. So you need to get a 4.3 stock rom onto your phone (I know you said only 4.0.4 works) but what are you using install firmware are you using Odin? If so what errors are you getting installing with Odin.
The patched modems and kernels are for 4.3 so they won't work on 4.0.4 or any other apart from 4.3
I was trying so many of them but its always ends with samsung logo loop it doesn' matter if i'm
do things like wipe cache, factory settings etc everytime its not working.
Even on 4.0.4 only this one rom is working.
Im always using ODIN, with KIES its always ends with samsung logo loop.
Rockafella71 said:
I was trying so many of them but its always ends with samsung logo loop it doesn' matter if i'm
do things like wipe cache, factory settings etc everytime its not working.
Even on 4.0.4 only this one rom is working.
Im always using ODIN, with KIES its always ends with samsung logo loop.
Click to expand...
Click to collapse
Ok a couple of things you could try (if you haven't already) I presume you have a custom recovery? Try flashing a custom stock 4.3 with recovery I suggest this >> http://forum.xda-developers.com/galaxy-s3/general/rom-sammys-stock-deodexed-rooted-t2585670 << This is as close to stock as possible but can be flashed with a custom recovery like Cwm,PhilZ,Twrp etc. You will also need to flash a 4.3 modem for this which is included in the thread. If the modem in the thread does not give you a signal (presuming the rom boots ) then keep the same custom rom but flash a patched modem and kernel on top with your custom recovery.
Don't forget to factory reset after flashing!
If none of that works you can always try the rescue firmware here >> http://forum.xda-developers.com/showpost.php?p=30087735&postcount=6 << obviously flash the 4.3 one. Hope that helps
Thank you very much for your help i will try this and let know here if it's working
Rockafella71 said:
Thank you very much for your help i will try this and let know here if it's working
Click to expand...
Click to collapse
So it's me again.
I have good news and bad news.
So i was able to install both of firmware with success.
After applying patched modem everything was still working.
But when im calling 112 for example im still having "out of service area" and my imei is still 004999...
So issue is still exist.
I can discover any network when i choose network its even says"registred on network" but then if im trying to choose some number im having error message that im not registred or if emergency call "out of service area".
Any ideas what still can i try ?

[Help] No cellular network

Hey there!
Yesterday I was using my phone with CM12.1 installed, everything was fine, but suddenly the phone stopped connecting to the cellular network and displayed "Emergency Calls Only" or "No service". What shocks me the most is that it was working perfectly fine that morning. Sometimes it let's me scan networks, and sometimes it gives an error on searching. When it does find and I try to connect it simply says "Can't connect to network, try again later"
I already tried reflashing CM12.1 , CM12, and multiple basebands (12B, 24B and 35B).
I also tried flashing back to stock. Didn't do anything.
IMEI is still intact and I have no backups!
Please help!
Model: vs985
ROM: Cyanogenmod 12.1
Baseband: 24B
Carrier: Verizon
By flashing back to stock do you mean flashing a stock ROM from TWRP or flashing a KDZ or TOT? The reason I ask is that with weird problems like this, just flashing a stock ROM from TWRP might not make any difference where flashing a KDZ or TOT might.
roirraW "edor" ehT said:
By flashing back to stock do you mean flashing a stock ROM from TWRP or flashing a KDZ or TOT? The reason I ask is that with weird problems like this, just flashing a stock ROM from TWRP might not make any difference where flashing a KDZ or TOT might.
Click to expand...
Click to collapse
I did flash a KDZ file, is that bad? As far as I know it's ok.
ericklc02 said:
I did flash a KDZ file, is that bad? As far as I know it's ok.
Click to expand...
Click to collapse
Like I said, flashing a KDZ or TOT would be the only real way to start trying to solve the problem so no.
Did you use the CSE option in LG Flash Tool 2014 (to wipe data and internal storage)? Try removing the MicroSD card and keeping it out (I know, sounds weird)? Try using your SIM card in another device and/or using a SIM in a working device in this one?
Do you not get a signal anywhere you go? If you've only tried in one place, it's possible there's just a local outage.
If you do all that and you still don't get a signal it sounds like your phone has a hardware problem.
roirraW "edor" ehT said:
Like I said, flashing a KDZ or TOT would be the only real way to start trying to solve the problem so no.
Did you use the CSE option in LG Flash Tool 2014 (to wipe data and internal storage)? Try removing the MicroSD card and keeping it out (I know, sounds weird)? Try using your SIM card in another device and/or using a SIM in a working device in this one?
Do you not get a signal anywhere you go? If you've only tried in one place, it's possible there's just a local outage.
If you do all that and you still don't get a signal it sounds like your phone has a hardware problem.
Click to expand...
Click to collapse
I did use the CSE option, I've already tried booting without sd card, and the sim card works on my Xperia ZL phone. Also, I know it's not a local outage, I tried it in school as well (Pretty far from home). I also tried a differebt SIM card on the LG and got the same results.
So, do you think it's a hardware problem? It suddenly stopped working, it does make sense. Like from 6 AM to 7 PM yesterday it did work perfectly fine with 4G LTE and everything. And (without turning it off) suddenly stopped working at 7 or so...
ericklc02 said:
I did use the CSE option, I've already tried booting without sd card, and the sim card works on my Xperia ZL phone. Also, I know it's not a local outage, I tried it in school as well (Pretty far from home). I also tried a differebt SIM card on the LG and got the same results.
So, do you think it's a hardware problem? It suddenly stopped working, it does make sense. Like from 6 AM to 7 PM yesterday it did work perfectly fine with 4G LTE and everything. And (without turning it off) suddenly stopped working at 7 or so...
Click to expand...
Click to collapse
That's the only possible guess I can make. You've eliminated software as well as you possibly can. You could try the TOT method but I doubt if it would have any different result than flashing KDZs. I always use KDZs when I have a choice.
roirraW "edor" ehT said:
That's the only possible guess I can make. You've eliminated software as well as you possibly can. You could try the TOT method but I doubt if it would have any different result than flashing KDZs. I always use KDZs when I have a choice.
Click to expand...
Click to collapse
I kind of doubt it's a hardware problems, if it was I wouldn't be able to see the carriers in the search menu would I?
ericklc02 said:
I kind of doubt it's a hardware problems, if it was I wouldn't be able to see the carriers in the search menu would I?
Click to expand...
Click to collapse
You restored to 100% stock software. If the choices are software or hardware how could it be anything but hardware unless you have more information to share?

Softbricked phone, no IMEI, no backup, no NVRAM folder.

A "script kiddie" here, tried to customize my phone for the first time, accidentally installed a wrong version ROM, the phone went into a bootloop and so i decided to completely wipe the internal storage (that was so very dumb...)
Now after a day of struggle i managed to install everything i wanted - TWRP and a custom MIUI, but ever since that memory wipe i lost my signal. After searching around some, it seems that my IMEIs got lost (disconnected, corrupted, i dont know how to call it) and the phone can not detect either of my SIM cards. WiFi works fine. I do not have "nvram" folder or file anywhere on my phone.
Nocturnal22 said:
A "script kiddie" here, tried to customize my phone for the first time, accidentally installed a wrong version ROM, the phone went into a bootloop and so i decided to completely wipe the internal storage (that was so very dumb...)
Now after a day of struggle i managed to install everything i wanted - TWRP and a custom MIUI, but ever since that memory wipe i lost my signal. After searching around some, it seems that my IMEIs got lost (disconnected, corrupted, i dont know how to call it) and the phone can not detect either of my SIM cards. WiFi works fine. I do not have "nvram" folder or file anywhere on my phone.
Click to expand...
Click to collapse
Look in Q&A section/IMEI NVRAM Restore Tools post. That is allmost the only way to restore lost IMEI.
Good luck.
stympy said:
Look in Q&A section/IMEI NVRAM Restore Tools post. That is allmost the only way to restore lost IMEI.
Good luck.
Click to expand...
Click to collapse
Im getting lost in that wall of text. Cant i just replace my damaged "nvram" with someone elses working one? Switching IMEI to mine afterwards of course.
Also it says i dont have a baseband, should i be fixing that first?
Nocturnal22 said:
Im getting lost in that wall of text. Cant i just replace my damaged "nvram" with someone elses working one? Switching IMEI to mine afterwards of course.
Also it says i dont have a baseband, should i be fixing that first?
Click to expand...
Click to collapse
At the end of that tutorial look for a small word tutorial zipped. Read that one first.
Turns out all i had to do was mess around with firmware re-flashing until i got a working baseband and then use Chamelephon to set up IMEIs.
Everything was that easy.
Nocturnal22 said:
Turns out all i had to do was mess around with firmware re-flashing until i got a working baseband and then use Chamelephon to set up IMEIs.
Everything was that easy.
Click to expand...
Click to collapse
Try this: reset the phone to factory defaults. Then try to see if IMEI'S are still there.
Tell me what firmware worked. It is a valuable information for others.
Thanks.
stympy said:
Try this: reset the phone to factory defaults. Then try to see if IMEI'S are still there.
Tell me what firmware worked. It is a valuable information for others.
Thanks.
Click to expand...
Click to collapse
I wiped all the factory settings and the ROMs i used to mess around were: P780_S124_ROW_140403, flashed through flashtool, supposed to be the "official" ROM (the one i got the stable baseband from) and MIUISU_4.4.2v_P780_7.2.24_ROW (the one im using currently). All the IMEIs got restored through Chamalephon as soon as i got a working baseband and i can send/accept calls and SMS with no problem. However there is a bug with constantly changing MAC now.
Nocturnal22 said:
I wiped all the factory settings and the ROMs i used to mess around were: P780_S124_ROW_140403, flashed through flashtool, supposed to be the "official" ROM (the one i got the stable baseband from) and MIUISU_4.4.2v_P780_7.2.24_ROW (the one im using currently). All the IMEIs got restored through Chamalephon as soon as i got a working baseband and i can send/accept calls and SMS with no problem. However there is a bug with constantly changing MAC now.
Click to expand...
Click to collapse
Hi. Did you installed MIUISU over s124 ?
If you did, you must update to s228 Kitkat.
S124 is jellybean. You will get errors, if you install kitkat over jellybean.
stympy said:
Hi. Did you installed MIUISU over s124 ?
If you did, you must update to s228 Kitkat.
S124 is jellybean. You will get errors, if you install kitkat over jellybean.
Click to expand...
Click to collapse
No, i installed s124 backed up the baseband and nvram files through MTK. Then i flashed the system, installed MIUI and recovered my baseband. The unstable MAC error started in s124 already.
Nocturnal22 said:
No, i installed s124 backed up the baseband and nvram files through MTK. Then i flashed the system, installed MIUI and recovered my baseband. The unstable MAC error started in s124 already.
Click to expand...
Click to collapse
Ok. I understand.

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