Ok, I'm in a real fix here. I have an LG Optimus One P500, with rooted stock Gingerbread (2.3.3), and a .35 baseband.
I used this guide to try to switch to the old baseband (.32) because most of the ROMs that have been developed support that baseband.
In the guide, I followed the instructions, and the software automatically created an .NV2 backup file. However, when it came to RESTORING that file, I got an error, saying failed. Now in the guide, they said this was curable, as long as I disabled the LGE Virtual Modem, which I did. At the time, my phone was in Emergency Mode (Yellow screen with text "Emergency Mode! ). Here's where (I think) I went wrong:
I disabled the Virtual Modem, and then pulled out the battery from my phone and rebooted, I tried running the Program again, but got the same error. I tried rebooting my PC and trying again, again same error. I also tried going into Emergency Mode and trying again, this time it said NV backup not found. I tried backing up a recovery image I had made with ClockwordMods Recovery. I got back the recovery, but still no GSM.
Please help me, I have no bluetooth, no FM radio, and most importantly NO GSM
Flash a .32 kernel based rom.. everything should be fine.
Sent from my LG-P500 using Tapatalk
Actually I'm quite sure that won't work... Because I can't get GSM radio even on stock GB. Also, I don't have an IMEI.. Although, you might be right, so I'll try and get back to you soon.
androidusero1p500 said:
Flash a .32 kernel based rom.. everything should be fine.
Sent from my LG-P500 using Tapatalk
Click to expand...
Click to collapse
What? That won't help in the least. @OP try wiping and re-installing all LG drivers and try again.
mihir287 said:
What? That won't help in the least. @OP try wiping and re-installing all LG drivers and try again.
Click to expand...
Click to collapse
Actually, surprisingly, it DID work. I installed CosmicIcEXperia and I got my GSM back.
snitch_95 said:
Actually, surprisingly, it DID work. I installed CosmicIcEXperia and I got my GSM back.
Click to expand...
Click to collapse
Hehe the reason behind is you re on. 32 baseband since you got interrupted in the last part ,that doesn't matter though.. !don't forget to press thanks i would recommend you to again flash d .32 baseband.. to avoid problems..
Sent from my LG-P500 using Tapatalk
snitch_95 said:
Actually, surprisingly, it DID work. I installed CosmicIcEXperia and I got my GSM back.
Click to expand...
Click to collapse
Sweet. I now see that you hadn't tried an old baseband rom. So flashing ComicXperia (which is an old baseband rom) works. It proves that you have successfully reverted to the old baseband. But at the post above me: .32 is the kernel, it is different from the baseband.
32 base and?
Don't make me laugh..
.32 is kernel and has nothing to do with baseband!
Greets
____________
mDroid - Tapatalk
Phone: LG-P500
ROM: Nitrogen - Beta-V1b
Kernel: custom .35
Theme: ICS (Z25 - paid. ported by me )
Tweaks: ALL
Wishlist: Galaxy Nexus
Related
Ok.. Now here is what happened...
I have been using the Mike OS 6.5.7 (V 2.3.4) for a while, was pretty happy with the stuff! Later, just to try a different ROM, i installed the openOptimus build 2.201.1. After installing, i found out that there was some issue with the so called baseband; Basically, the baseband had to be changed to V20.
With a bit of a help from the openOptimus build 2.201.1 thread, i did a baseband change! It did start working but with a few nitches. So i went back to Mike OS, and there it was! A BASEBAND MISMATCH.
So to rectify this issue, i went to this forum ([HOWTO] Flashing baseband (radio) via LGMDP.exe - xda-developers) and downloaded the V10 baseband, and followed the steps. But my phone never recognized the port! And so im stuck with open optimus now.
Im sure i missed something in between the installs. Can anybody tell me what exactly would have happened here and how this could be rectified?
(Cant wait for the new ROM from Andy.... Dont wanna mess my phone up before trying that )
Cheers
varungnath said:
Ok.. Now here is what happened...
I have been using the Mike OS 6.5.7 (V 2.3.4) for a while, was pretty happy with the stuff! Later, just to try a different ROM, i installed the openOptimus build 2.201.1. After installing, i found out that there was some issue with the so called baseband; Basically, the baseband had to be changed to V20.
With a bit of a help from the openOptimus build 2.201.1 thread, i did a baseband change! It did start working but with a few nitches. So i went back to Mike OS, and there it was! A BASEBAND MISMATCH.
So to rectify this issue, i went to this forum ([HOWTO] Flashing baseband (radio) via LGMDP.exe - xda-developers) and downloaded the V10 baseband, and followed the steps. But my phone never recognized the port! And so im stuck with open optimus now.
Im sure i missed something in between the installs. Can anybody tell me what exactly would have happened here and how this could be rectified?
(Cant wait for the new ROM from Andy.... Dont wanna mess my phone up before trying that )
Cheers
Click to expand...
Click to collapse
Maybe u need to reinstall the drivers...
Sent from LGE Secret phone using tapatalk app...
ok... would give that a try
varungnath said:
Ok.. Now here is what happened...
I have been using the Mike OS 6.5.7 (V 2.3.4) for a while, was pretty happy with the stuff! Later, just to try a different ROM, i installed the openOptimus build 2.201.1. After installing, i found out that there was some issue with the so called baseband; Basically, the baseband had to be changed to V20.
With a bit of a help from the openOptimus build 2.201.1 thread, i did a baseband change! It did start working but with a few nitches. So i went back to Mike OS, and there it was! A BASEBAND MISMATCH.
So to rectify this issue, i went to this forum ([HOWTO] Flashing baseband (radio) via LGMDP.exe - xda-developers) and downloaded the V10 baseband, and followed the steps. But my phone never recognized the port! And so im stuck with open optimus now.
Im sure i missed something in between the installs. Can anybody tell me what exactly would have happened here and how this could be rectified?
(Cant wait for the new ROM from Andy.... Dont wanna mess my phone up before trying that )
Cheers
Click to expand...
Click to collapse
Did you flash the gsm fix along with mik_os's CM7 ?
I too have new baseband and am using the above rom with the fix....
hell1134 said:
Did you flash the gsm fix along with mik_os's CM7 ?
I too have new baseband and am using the above rom with the fix....
Click to expand...
Click to collapse
Din do that ... Think that should solve the issue... CHeers mate!
varungnath said:
Din do that ... Think that should solve the issue... CHeers mate!
Click to expand...
Click to collapse
Enjoy your GSM only smartphone.
For the zillionth time - mik's ROMs are old baseband ONLY! With the patch, data does NOT work.
People, search and at least read the darned ROM instructions, this pointless noise here is annoying like hell.
I was on stock GB 2.3.3. then i rooted my phone for the first time today. i was planning to install custom ROM 2.3.4 Phoenix. then i read somewhere that i need to be on the old baseband. and i saw a guide to do that. i did the same.
I purchased ROM Manager. i tried to download ROM. it asked to do a backup, and i did that - within ROM Manager. then it showed me few available ROM's. and i clicked the Mik's CM 7.1 and installed it. but there was no network. Wifi was working.
So, I tried to do a restore. but it said i can't do that because Clkwrkmod Restore is not installed. I installed it using WiFi, but it didn't work saying there was some files missing. then I thought of downloading 2.3.4 Phoenix to overcome this situation, hoping that network will comeback. i downloaded and installed it. but still no network as well as no WiFi.
What should i do now? is baseband an issue here? Pls pls.. anyone help. I know i did some big mistakes..
i will be more than happy to go back to even Froyo 2.2, my original stock ROM. i need to get network working.
Siby.
sibyaugustine said:
I was on stock GB 2.3.3. then i rooted my phone for the first time today. i was planning to install custom ROM 2.3.4 Phoenix. then i read somewhere that i need to be on the old baseband. and i saw a guide to do that. i did the same.
I purchased ROM Manager. i tried to download ROM. it asked to do a backup, and i did that - within ROM Manager. then it showed me few available ROM's. and i clicked the Mik's CM 7.1 and installed it. but there was no network. Wifi was working.
So, I tried to do a restore. but it said i can't do that because Clkwrkmod Restore is not installed. I installed it using WiFi, but it didn't work saying there was some files missing. then I thought of downloading 2.3.4 Phoenix to overcome this situation, hoping that network will comeback. i downloaded and installed it. but still no network as well as no WiFi.
What should i do now? is baseband an issue here? Pls pls.. anyone help. I know i did some big mistakes..
i will be more than happy to go back to even Froyo 2.2, my original stock ROM. i need to get network working.
Siby.
Click to expand...
Click to collapse
You need to downgrade tour baseband for GSM. Andy's rom wifi does not work, flash latest 19 Sept FRANCO kernel only.
Sent from my LG-P500 using XDA App
terratrix said:
You need to downgrade tour baseband for GSM. Andy's rom wifi does not work, flash latest 19 Sept FRANCO kernel only.
Click to expand...
Click to collapse
i already downgraded before flashing CM 7.1. should i downgrade it again?
sibyaugustine said:
i already downgraded before flashing CM 7.1. should i downgrade it again?
Click to expand...
Click to collapse
Try again then
Sent from my LG-P500 using XDA App
terratrix said:
Try again then
Click to expand...
Click to collapse
Tried again.. but still no network.. how can i go back to the previous state. i don't have a nandroid backup. am i in big trouble? or is it manageable?
sibyaugustine said:
Tried again.. but still no network.. how can i go back to the previous state. i don't have a nandroid backup. am i in big trouble? or is it manageable?
Click to expand...
Click to collapse
Easier way how to downgrade is flash through KDZ.
Sent from my LG-P500 using xda premium
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
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.
Hi all,
I installed PA v2.5. Everything worked well except my phone network signal. It is not detecting any signal. Did every thing i could do. wiped system/factory reset, wiped cache partition and dalvik cache. Fixed permissions. Formatted system. tried installing rom a number of times. Changed kernels from stock kernel to siyah 4.1.3 and 5.0. But none of the method worked. Please suggest the way i can get my phone signals as without network signal, it doesn't remain a phone.
Have you tried flashing another modem? You can download a modem here.
Why don't you try to install an other kernel? Different from siyah and stock... As kernels define how hardware work...
singhsidhartha said:
Hi all,
I installed PA v2.5. Everything worked well except my phone network signal. It is not detecting any signal. Did every thing i could do. wiped system/factory reset, wiped cache partition and dalvik cache. Fixed permissions. Formatted system. tried installing rom a number of times. Changed kernels from stock kernel to siyah 4.1.3 and 5.0. But none of the method worked. Please suggest the way i can get my phone signals as without network signal, it doesn't remain a phone.
Click to expand...
Click to collapse
You installed siyah 4.1.3 with PA 2.5? They're not compatible and the phone shouldn't even have booted.
Anyways, if you're not able to get a signal, your modem has probably changed. You can check if the modem currently on your phone (settings>about phone) is the same as the one you originally had. ( I assume you've noted down your original modem details somewhere. And flash that modem from the link mentioned above. It should work
Sent from my GT-I9100 using xda app-developers app
so please suggest some other kernel.
riro1612 said:
Why don't you try to install an other kernel? Different from siyah and stock... As kernels define how hardware work...
Click to expand...
Click to collapse
so please suggest some other kernel that works fine with pa 2.5. Should i use dorimax like??
so please suggest some other kernel.
HAXTREME said:
You installed siyah 4.1.3 with PA 2.5? They're not compatible and the phone shouldn't even have booted.
Anyways, if you're not able to get a signal, your modem has probably changed. You can check if the modem currently on your phone (settings>about phone) is the same as the one you originally had. ( I assume you've noted down your original modem details somewhere. And flash that modem from the link mentioned above. It should work
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
so please suggest some other kernel that works fine with pa2.5. I had installed i9100DDLPA base version originally. and now i have flashed it. still not getting signal. sometimes it appears but disappear next moment. it happens frequently. Now i have switched to stock ics 4.0.3. but i want this rom. i flashed resurrection remix and found same problem. but flashing stock modem fixed it. But its not working with pa.
Use siyah 5.0 or dorimanx 7.4 (or higher if there's a later release.) I think the siyah dev gokhanmoral has blocked siyah 5.0 downloads for some reason, so use dorimanx 7.x for now.
Flash the PA ROM, it'll automatically install the default kernel its using. You can install dorimanx after that. And then if necessary, the modem that works for you. Also you can use the getRIL app to match your radio and baseband. May help.
Sent from my GT-I9100 using xda app-developers app
Ok. Check if it works.
Sent from my GT-I9100 using xda app-developers app
singhsidhartha said:
Ok. Check if it works.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Hi, i love PA too but we have the same issue. Not exactly the same though. I get signal when i boot my phone, i get an H signal (the highest i could get before the issue) but after flashing PA, it drops to E only after about 2minutes. Pls pls reply back if you found a solution. I have tried different modems and kernels already, verified that Siyah 5 is not compatible, tried DorimanX, same thing. Tried 2 different version of PA, no luck. Not to mention that i also tried another sim.
GetRil did it..
Hurraaayyy....
getRil app solved the problem.:laugh: It gave me the option of flashing modems which were matching my phones modem hardware. Thanks to all guys who helped me. Thanks a lot. Anyone having the same problem as of mine or any network related problem please give a try to getRIL app. May be it could work for you too.
LInk: http://forum.xda-developers.com/showthread.php?t=1187681