Hi
If I flash a rom that requires new baseband (e.g. Official GB), but I dislike, Can I back to the old baseband flashing a backup of a rom that support old baseband?
No that's not possible...you need to downgrade your baseband first and then you will be able to restore your backup... else NO GSM...
1 Friendly suggestion... forget about upgrading to official GB as it sucks goats... try any rom but not those...
Sent from my LG-P500 using xda premium
Thanks for your answer and suggestion!
How does one downgrade?
You are right, the new baseband DOES suck! Help on downgrading back to old baseband? (wifi calling is the most important feature to me, and I dont have it on this god forsaken 2.3)
Jgreenmusic said:
You are right, the new baseband DOES suck! Help on downgrading back to old baseband? (wifi calling is the most important feature to me, and I dont have it on this god forsaken 2.3)
Click to expand...
Click to collapse
you can downgrade back to the old baseband using the same method you used to flash the new baseband.
http://forum.xda-developers.com/showthread.php?t=1149530
it is the same method except you use another file (in this case you will be using the file for the old baseband)
Related
Discussion thread for cyanogenmod 7.2.0 by adfad666
No more spamming in the main thread
Questions like: what kernel, what baseband, got drunk and bricked my phone.... HERE
OK, first q: can someone post Neocore results on F1 and 06.12 franco`s kernel?
Baseband question: i'm on the new baseband (was on stock 2.3, then flashed to openoptimus). I really like the look of some of these .32 kernels and roms but everything says its for old baseband.
Can i go back to the old baseband? Is there a thread somewhere? Is it safe? From my own investigation, it looks to me like I don't go back to the old baseband, but rather flash some patch to make the roms work anyway. Sound right?
Discussion Thread already Exists...
http://forum.xda-developers.com/showthread.php?t=1394053
jeremysherriff said:
Baseband question: i'm on the new baseband (was on stock 2.3, then flashed to openoptimus). I really like the look of some of these .32 kernels and roms but everything says its for old baseband.
Can i go back to the old baseband? Is there a thread somewhere? Is it safe? From my own investigation, it looks to me like I don't go back to the old baseband, but rather flash some patch to make the roms work anyway. Sound right?
Click to expand...
Click to collapse
It is safe, and you will not have data(2G/3G) working if you don't have it
Most of us are on old baseband, and also most of us had new baseband
Sent from my LG-P500 using xda premium
shubhamjain001 said:
Discussion Thread already Exists...
http://forum.xda-developers.com/showthread.php?t=1394053
Click to expand...
Click to collapse
Thanks
Sent from my LG-P500 using xda premium
jeremysherriff said:
Baseband question: i'm on the new baseband (was on stock 2.3, then flashed to openoptimus). I really like the look of some of these .32 kernels and roms but everything says its for old baseband.
Can i go back to the old baseband? Is there a thread somewhere? Is it safe? From my own investigation, it looks to me like I don't go back to the old baseband, but rather flash some patch to make the roms work anyway. Sound right?
Click to expand...
Click to collapse
Read this to get back to old baseband. And read carefully.
http://forum.xda-developers.com/showthread.php?t=1149530
vlt96 said:
It is safe, and you will not have data(2G/3G) working if you don't have it
Most of us are on old baseband, and also most of us had new baseband
Sent from my LG-P500 using xda premium
Click to expand...
Click to collapse
Sorry dude I don't quite understand your response. Is there anything I have to do, or just flash the rom and it will be OK?
jeremysherriff said:
Sorry dude I don't quite understand your response. Is there anything I have to do, or just flash the rom and it will be OK?
Click to expand...
Click to collapse
It won't be OK. If your phone uses the "new" baseband, ROMs made for the "old" baseband will work on your phone (as in flashing will be successful, the phone boots etc.) and everything works except for the most important thing in a phone: the GSM/UMTS module. Which means you won't be able to connect to your mobile network and won't be able to make and receive calls. Bummer. Now, there's a patch that solves this BUT something will still be missing: mobile data. You will be able to make and receive phone calls, but you won't be able to connect to the internet using the mobile data connection (only WiFi).
So, if you want to use a ROM that clearly states it's made for the old baseband, old baseband is what you must have on your phone in order for both calls and internet to work. How to tell which baseband do you have right now it's a different discussion and we'll get there if necessary. I just detailed vlt86's answer for you to understand.
EDIT: I see you already know what baseband you have - the new one. Follow voyager20021's link in order to find out how to return to the old one.
Cm 7.2 + fix
Hello! Has built into the firmware fix winhescreen! Who's supposed to take away! Please put this version in the main theme of CM 7.2
Sorry for my English. I'm from Russia =)
Here is the link multiupload.com/TAG22V8U90
voyager20021 said:
OK, first q: can someone post Neocore results on F1 and 06.12 franco`s kernel?
Click to expand...
Click to collapse
My Neocoe Score: 63FPS...
(on .35 kernel)
There is a easier way for new base band users just flash mik's baseband patch
Sent from my LG-P500 using XDA App
I tried flashing mik's patch on F1 and GSM did not work; only IMEI was read, but no access to SIM card. Is mik patch only for A serie (0.32 kernel) ?
thanks
bye
I have a problem to phone... when I change ROM, I do not signal the battery ... what to do? I tried to update the software and nothing .
sorry for my bad english...
maybe the rom you flashed is not compatible with your current baseband. or am i not understanding this right?
Ahaa... yo're right.. I changed the baseband 1 week ago ... I can give a baseband for p500?
riscanuc said:
Ahaa... yo're right.. I changed the baseband 1 week ago ... I can give a baseband for p500?
Click to expand...
Click to collapse
Here you find both Basebands (New and Old) and also a guide to change them.
And also there is a Search button on the page which gives you alnost ALL answers
OLD BASEBAND: V10X, only for use with ROMs based on Froyo or unofficial CM.
NEW BASEBAND[: V20X, only for use with ROMs based on Gingerbread or official CM.
You can change this using LGMDP but I prefer use KDZ Firmware Updater (but you need to root and install recovery each time).
If you flash any ROM without the right baseband you haven't GSM and/or data connectivity.
Hi there
I think the reason why I do not see a network or SIM card is because the baseband is empty as well as the IMEI.
I installed ICS Dynamite 4.0 and I assume that maybe the missing baseband is the reason.
I am Germany right now, does it matter what baseband I am going to use?
Interestingly when I flash back a working Cyanogen 7 rom a baseband is back.
Any tips?
Claas
cm7
which cm7 build did you flash?
cekuhnen said:
Hi there
I think the reason why I do not see a network or SIM card is because the baseband is empty as well as the IMEI.
I installed ICS Dynamite 4.0 and I assume that maybe the missing baseband is the reason.
I am Germany right now, does it matter what baseband I am going to use?
Interestingly when I flash back a working Cyanogen 7 rom a baseband is back.
Any tips?
Claas
Click to expand...
Click to collapse
Are you on the old baseband?
Sent from my LG-P500 using xda premium
being in germany or any other part of the world really shouldnt matter about baseband....v10 is old baseband, if you rooted a stock phone, than yes your on old baseband or so I was when I first got this phone....In order to get v20, you need to use LGDMP v1.5, search for Doktonor's thread on flashing with LGDMP....it's not that hard really, and applies to any v20 series (a,b,c,etc)...all you do is extract the 7z file format, open LGDMP, you'll have 4 files total in this extracted folder.....I cant remember to the T on the whole process but the thread by doktonor is with pictures and well be able to help you out....if your having a problem with mobile data and dont want to risk switching basebands, than look out for aspee's baseband fix or a funny sim fix....it's best to go ahead and flash new baseband, it's easy though....as far as your phone not showing IMEI, that's common on some CM7 based roms, even neko95's Moto Razr-UI v7 rom shows no baseband on my phone, not exactly sure why it does that but I am on new baseband (obviously, since mobile data works)
So i want to try cm9 on my p509. I've tried many times to upgrade the baseband, but whenever i do i get no gsm and my imei disappears. trust me i've followed the guide EXACTLY. so i just stick with old bb. I want to flash to this cm9 http://forum.xda-developers.com/showthread.php?t=1614420. My question is if i flash this rom will it brick my phone (because i'm on old bb). if it won't then can someone post a link to a old bb fix so i can get data working on my phone when i flash it. I need this info urgently because i'm about to travel in a few hours and want to flash before i do. Thank you!
It will not brick your phone, and I haven't the FIX yet.
I'm searching for it now
fd1999 said:
It will not brick your phone, and I haven't the FIX yet.
I'm searching for it now
Click to expand...
Click to collapse
thank you, please post links if you find them :good:
Try using lgmdp that's how I updated my baseband
http://forum.xda-developers.com/showthread.php?t=1149530
Sent from my LG-P500 using xda premium
Ecuadude said:
Try using lgmdp that's how I updated my baseband
http://forum.xda-developers.com/showthread.php?t=1149530
Sent from my LG-P500 using xda premium
Click to expand...
Click to collapse
that what i've been doing, but it never works properly
i've followed all the directions, and it doesn't work. i downloaded the v20 file and extracted with winzip to update to v20.
Do you've restored the NV2-file after flashing the new baseband?
Just a note, try not to mess around with nv2 it can create such a hasle in the end
Sent from my LG-P500 using xda app-developers app
fd1999 said:
Do you've restored the NV2-file after flashing the new baseband?
Click to expand...
Click to collapse
no was i supposed to?
Guys i'm stupid. i was trying to update the baseband while using cm 7.2 (i used an old bb-fix for data) so i flashed cm9,, and then updated the baseband and it works!!!! so now my question is, if i re-flash cm 7.2 and am still on the upgraded baseband will it work? (yes i know i can just restore a nandroid backup, but i just need to know this information)
dragid10 said:
Guys i'm stupid. i was trying to update the baseband while using cm 7.2 (i used an old bb-fix for data) so i flashed cm9,, and then updated the baseband and it works!!!! so now my question is, if i re-flash cm 7.2 and am still on the upgraded baseband will it work? (yes i know i can just restore a nandroid backup, but i just need to know this information)
Click to expand...
Click to collapse
I think, it doesn't work. The ROM boots, but you have no signal etc. Even restore a nandroidbackup doesn't downgrade the baseband.
fd1999 said:
I think, it doesn't work. The ROM boots, but you have no signal etc. Even restore a nandroidbackup doesn't downgrade the baseband.
Click to expand...
Click to collapse
Why would he need to downgrade
Both cm7.2 and cm9 run on new baseband,right?
Though not sure what restoring nandroid will do in this case as then it would have old-bb fix on new baseband:cyclops:
yeah i hear ya. so is it reccomended that i reflash cm 7.2 so then i coulld stay on new baseband? then it would be easier for me to flash roms for new bb right?
okay... i am gonna explain this and hope i am right..sry for big post
Our phone has many partitions like(system,data,boot,recovery,cache,etc)
The mbn files that you see in P500-v20G-baseband.7z are partition images(or pieces of it or bin file or something similar....am not sure)
Now to install a custom rom, you format system,data,cache(or boot too in some cases) and then flash the rom, which basically copies new files to these partitions.
SO,custom rom does not affect other partitions present on your phone.
However when you install stock through kdz, it basically wipes your whole phone and install each partition again(including the one containing baseband).So, after installing a kdz...you are stuck with that baseband no matter which rom you install through recovery unless you install a kdz again with diff baseband.
The lgmdp method only changes the partition containing baseband (amss.mbn). So,again custom roms have no effect on baseband.
Now, to answer your ques.
dragid10 said:
so is it reccomended that i reflash cm 7.2 so then i coulld stay on new baseband? then it would be easier for me to flash roms for new bb right?
Click to expand...
Click to collapse
No, you dont need to reflash any other rom. You ARE on new baseband now and can flash any rom for new bb and it will work.
Note:All info above may or may not be entirely correct.Its just how i think it works.:good:
Thread closed as requested by the OP.
YZ.
Mod plz add this to sticky or link it in sticky
As we know there are two types of baseband's available for our device, old baseband which is used by froyo and some gingerbread rom's and new baseband that is used by gingerbread onwards.
To switch baseband you either need to flash baseband through lgmdp or flash firmware using kdz and both involves a substantial degree of risk of bricking your device.
What I will be telling will not actually change your baseband but will make the ROM compatible with the baseband you are using. So here it is how it goes.
-> If you are having old baseband and want to use new baseband ROM, flash this after flashing ROM
https://www.box.com/shared/jt2m8hl8jd6qul915z4g
-> If you are having new baseband and want to use old baseband ROM, flash this after flashing ROM
https://www.box.com/shared/r5l39a5ocaxr8zq1s46h
Note:- Patch for old baseband was originally made by adfadd and thats where idea came for creating a patch for new baseband. While the patch by adfadd is long lost in pile of threads, this is where this thread will come handy.
Flashing baseband through LGMDP cannot brick your device,only flashing full firmwares via LGMDp or KDZ_FW_UPD can have chance to brick
TheAndroidGeek said:
Flashing baseband through LGMDP cannot brick your device,only flashing full firmwares via LGMDp or KDZ_FW_UPD can have chance to brick
Click to expand...
Click to collapse
what abt if u get nv2 corrupted
Manual search fix
Here is the libril.so for manual search fix. My friend tested it on new baseband and it works.
So, probably for all new basebands including funnysim may work for gingerbread, ics and jellybean. Please test it on and report.
Good job.
Sent from my LG-P500 using xda premium
failed with Rashed cm10
has anyone tried this with rashed's cm10 build 6?
i've tried it and its not working for me, any help appreciated
Rashed has recently posted baseband requirements for his roms. Some are old bb, and some are new.
and all things will be revealed
sent from my LG p509 using xda app
fundoozzz said:
Mod plz add this to sticky or link it in sticky
As we know there are two types of baseband's available for our device, old baseband which is used by froyo and some gingerbread rom's and new baseband that is used by gingerbread onwards.
To switch baseband you either need to flash baseband through lgmdp or flash firmware using kdz and both involves a substantial degree of risk of bricking your device.
What I will be telling will not actually change your baseband but will make the ROM compatible with the baseband you are using. So here it is how it goes.
-> If you are having old baseband and want to use new baseband ROM, flash this after flashing ROM
https://www.box.com/shared/jt2m8hl8jd6qul915z4g
-> If you are having new baseband and want to use old baseband ROM, flash this after flashing ROM
https://www.box.com/shared/r5l39a5ocaxr8zq1s46h
Note:- Patch for old baseband was originally made by adfadd and thats where idea came for creating a patch for new baseband. While the patch by adfadd is long lost in pile of threads, this is where this thread will come handy.
I ve flash cm9 now i have no service i know I'm going to have to flash new bb hey this work for Phoenix p505
Sent from my LG-p505 using xda app-developers app
Click to expand...
Click to collapse
i looked into the zip file and found that a few lib files are added by flashing the patch. would this affect the performance? my phone works fine in 90% of the time. however, sometimes it is just too laggy to even answer calls. it could become normal after some time, say 30s ro 1min.
i dont have this problem when i was using roms based on the old baseband. so i am wondering what would the patch do to the system.
thanks.
shen6121 said:
i looked into the zip file and found that a few lib files are added by flashing the patch. would this affect the performance? my phone works fine in 90% of the time. however, sometimes it is just too laggy to even answer calls. it could become normal after some time, say 30s ro 1min.
i dont have this problem when i was using roms based on the old baseband. so i am wondering what would the patch do to the system.
thanks.
Click to expand...
Click to collapse
those libs aren't going to affect performance in any way... its the ROM & kernel that affects performance.
Am I mistaken, or is there a flashable zip to undo the old bb fix?
Sent from my LG-P500 using xda app-developers app
ibub said:
Am I mistaken, or is there a flashable zip to undo the old bb fix?
Sent from my LG-P500 using xda app-developers app
Click to expand...
Click to collapse
I think is the newbb fix
Seriously? How could it be that simple? Anyway, my thanks button is empty, so... thanks
Sent from my LG-P500 using xda app-developers app
will it work with jb custom rom??
i am using mik_os Cm7.1 and i am sure that i have oldbaseband..
so if i want to install "[ROM][4.1.2][CM10][UNOFFICIAL] by Rased97".with this old baseband fix, will it work on my device??
It should work. But make a backup.
Sent from my LG-P500 using xda app-developers app
Nvrmnd
Works for my old baseband P500 wanting to use Paranoid Android 3.15 (JB 4.2.2 based).
Cant Get The File
why i cant get the file?
cyber.wizard said:
i am using mik_os Cm7.1 and i am sure that i have oldbaseband..
so if i want to install "[ROM][4.1.2][CM10][UNOFFICIAL] by Rased97".with this old baseband fix, will it work on my device??
Click to expand...
Click to collapse
Sent from my LGE VS415PP using XDA Labs