Hi all I am having problems flashing a different rom to my lg optimus p500h. I have tried flashing a couple different roms to my phone but when I boot up I don't have service. I looked for my IMEI number on my phone and it's blank. How do I flash a rom and keep my IMEI number?
possibly you dont read carefully what roms you can use when flashing this phone.
there are 2 sorts of baseband (needed for gsm and data service) - if you are coming
from LG stock rom you have to decide what rom you want to use and than you have
eventually flash the baseband too... its all written here in general topic, so take a look
at previous posts/topics about baseband and what rom to use.
What would be considered the stock rom? It used to have 2.1 on it but I updated it a couple times and it now has 2.33.
chrfra said:
What would be considered the stock rom? It used to have 2.1 on it but I updated it a couple times and it now has 2.33.
Click to expand...
Click to collapse
Now you are on new baseband... so u cant use 99% of the roms available on xda...
U will need to downgrade back to 2.2.1, just the way u upgraded to use those 99% roms...
Sent from my LG-P500 using xda premium
Ok how do I downgrade? I have done some searching but can't find anything.
Is there any I can use without downgrading?
READ this, answer to most of your questions (and if you don't get, read again! ):
http://forum.xda-developers.com/showthread.php?t=901247
Related
I am completely new and did my first rom today. Seems fine but the phone doesnt ask me for the pin number for the sim, as it always did. And when I try searching all gsm networks it returns me an error.
Well just also need to tell you that I am using roaming for I am in another country then the one my phone and gsm networks are from. Can someone help me»
bramirez37 said:
I am completely new and did my first rom today. Seems fine but the phone doesnt ask me for the pin number for the sim, as it always did. And when I try searching all gsm networks it returns me an error.
Well just also need to tell you that I am using roaming for I am in another country then the one my phone and gsm networks are from. Can someone help me»
Click to expand...
Click to collapse
What was your previous ROM and what is the one which you flashed today? And are you getting any networks in the search? If yes, is your home network available in the list?
what is ur current rom and previous rom before u flash ?
gkarthik16 said:
What was your previous ROM and what is the one which you flashed today? And are you getting any networks in the search? If yes, is your home network available in the list?
Click to expand...
Click to collapse
I had the default rom and now moved to void #forever - and it doesn't show any network at all, when I do a search it always returns network error and it never asks for my pin. Thanks for the fast reply people
And the default rom was what? 2.2.x or 2.3.3?
Bec de Xorbin said:
And the default rom was what? 2.2.x or 2.3.3?
Click to expand...
Click to collapse
Sorry dudes, completely new here 2.3.3
bramirez37 said:
I am completely new and did my first rom today. Seems fine but the phone doesnt ask me for the pin number for the sim, as it always did. And when I try searching all gsm networks it returns me an error.
Well just also need to tell you that I am using roaming for I am in another country then the one my phone and gsm networks are from. Can someone help me»
Click to expand...
Click to collapse
Which version of Android did u have on your phone before you rooted and flashed a new ROM? Which ROM did u flash?
If u had Froyo (2.2.*) and now u flashed a Gingerbread based ROM (2.3.3), you have a baseband problem (The baseband is the subsystem of the phone that controls radio communications: GSM and data connection...). Froyo uses a different baseband (old) than Gingerbread (new baseband).
Solution: change the baseband according to your newly flashed ROM.
How to upgrade/downgrade baseband for noobs
Flashing baseband (radio) via LGMDP.exe
If u have a Froyo based ROM or any ROM that needs the old baseband (Mik_os's CM7 port...), you need P500-v10E-baseband.7z
For Gingerbread based ROMs u need P500-v20G-baseband.7z
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EDIT:
Since u came from Gingerbread u have the new baseband. Since #forever is based on CM7, it uses the old baseband... U need to downgrade to P500-v10E-baseband.
Has I said I am a rookie but what I did was:
Installed original 2.3.3
- Rooted
- Created recovery
- Installed latest Void #forever
GSM didn't work
bramirez37 said:
Has I said I am a rookie but what I did was:
Installed original 2.3.3
- Rooted
- Created recovery
- Installed latest Void #forever
GSM didn't work
Click to expand...
Click to collapse
Dude, you had 2.3.3 first. It uses new baseband.
Void forever is based on CM7, which supports only old baseband.
You can do any one of the following things:
1. Flash 2.2 official ROM through KDZ. So you'll get old baseband again and you can install void forever. Go here: http://forum.xda-developers.com/showthread.php?t=1060121
2. Mik has a fix for the new baseband. It will provide GSM support, but internet data will not work. Wifi will work, GPRS/3G will not. Go here and flash the file through recovery: http://www.multiupload.com/R9CEDO2HS9
3. You can revert to the old baseband. Follow this thread: http://forum.xda-developers.com/showthread.php?t=1149530 and you can find the old and new basebands here: http://lg-p500.zrusit.eu/index.php?dir=baseband/
Follow the steps in the given threads and you should be fine.
ROTFL... Read the sticky threads.
dr.notor said:
ROTFL... Read the sticky threads.
Click to expand...
Click to collapse
Man I tried to read as much stuff as I could. It is not easy to find all the right answers
gkarthik16 said:
Dude, you had 2.3.3 first. It uses new baseband.
Void forever is based on CM7, which supports only old baseband.
You can do any one of the following things:
1. Flash 2.2 official ROM through KDZ. So you'll get old baseband again and you can install void forever. Go here: http://forum.xda-developers.com/showthread.php?t=1060121
2. Mik has a fix for the new baseband. It will provide GSM support, but internet data will not work. Wifi will work, GPRS/3G will not. Go here and flash the file through recovery: http://www.multiupload.com/R9CEDO2HS9
3. You can revert to the old baseband. Follow this thread: http://forum.xda-developers.com/showthread.php?t=1149530 and you can find the old and new basebands here: http://lg-p500.zrusit.eu/index.php?dir=baseband/
Follow the steps in the given threads and you should be fine.
Click to expand...
Click to collapse
So I want this one??? P500-v10E-baseband.7z
Is there an IRC chat room when I can get help live?
And actually can you comment on what rom to choose? I haven't decided between the void the miks and the OPENOPTIMUS
bramirez37 said:
So I want this one??? P500-v10E-baseband.7z
Is there an IRC chat room when I can get help live?
And actually can you comment on what rom to choose? I haven't decided between the void the miks and the OPENOPTIMUS
Click to expand...
Click to collapse
I actually already posted this link in this thread... How to upgrade/downgrade baseband for noobs
and answered about which one to choose!
You have everything you need to get it done without our help!
bramirez37 said:
I haven't decided between the void the miks and the OPENOPTIMUS
Click to expand...
Click to collapse
Go for mik ...its the best!!
Sent from my LG-P500 using XDA App
Ye go for mik, although i head andy is bringing out a new Rom based on cyanogen very soon so looking forward to seeing that
Playing around with void then I will check mik
bramirez37 said:
Man I tried to read as much stuff as I could. It is not easy to find all the right answers
Click to expand...
Click to collapse
It gets easier as you get more "seat time" with this stuff.
I'm running Mik's stable at the moment and I'd say it meets 95% of my needs. Great ROM.
also dont forget to look into the available kernels, they are preety much what makes your system what it is concerning its speed, graphics, battery life
the current mik_os and void both have outdated versions of the franco.kernel, and a much more recent version is available, as well as a modified version by fserve.
deniso177 said:
also dont forget to look into the available kernels, they are preety much what makes your system what it is concerning its speed, graphics, battery life
the current mik_os and void both have outdated versions of the franco.kernel, and a much more recent version is available, as well as a modified version by fserve.
Click to expand...
Click to collapse
I have flashed the new kernel, thanks.
Honestly I am very thankful for you guys being so nice. Sometimes I see in the forum some really hard messaging towards the new guys and I think we all want to learn right?
So my biggest problem with the phone I love P500 was that it was a bit laggy and although I moved apps as much as I could to the sd I was running out of space in my rom.
Now the system is a lot faster and although (because I am a noob) I lost some of my stuff I am glad because the phone is working so much better.
Actually I have another question: I bought Titanium backup because it seemed really worth it (it is the only paid app I have) but when I look at all the possible apps to backup there seem to be a lot missing (all the ones in the sd card).
Does anyone now how I can fix it?
Revert to Baseband V10E
gkarthik16 said:
3. You can revert to the old baseband. Follow this thread: http://forum.xda-developers.com/showthread.php?t=1149530 and you can find the old and new basebands here: http://lg-p500.zrusit.eu/index.php?dir=baseband/
Follow the steps in the given threads and you should be fine.
Click to expand...
Click to collapse
Thanks bro for this link. i cud not get signal in cm7 but could not replicate the same problem. The change of baseband is somehow subtle
anyway nice that it worked. Thanks again.
O1, Void #forever, Clockwork Mod
Hi, I have LG P500 Optimus one. I recently have rooted this phones and installedClocworkMod Recovery v5.0.2.0. The thing is, then i install custom rom there is no service on my phone. When I restore origina one everything is good. So what's wrong? I install roms as written ( I try to choose those, which are simple to install) and "No Service".
Post this on optimus one thread
almiukask said:
Hi, I have LG P500 Optimus one. I recently have rooted this phones and installedClocworkMod Recovery v5.0.2.0. The thing is, then i install custom rom there is no service on my phone. When I restore origina one everything is good. So what's wrong? I install roms as written ( I try to choose those, which are simple to install) and "No Service".
Click to expand...
Click to collapse
Sent from my GT-I9003 using XDA App
almiukask said:
Hi, I have LG P500 Optimus one. I recently have rooted this phones and installedClocworkMod Recovery v5.0.2.0. The thing is, then i install custom rom there is no service on my phone. When I restore origina one everything is good. So what's wrong? I install roms as written ( I try to choose those, which are simple to install) and "No Service".
Click to expand...
Click to collapse
It could be possible that the ROM also includes a radio that is not compatible with your service provider. Although mosts ROM's do not include a radio, there are some that do.
Or you could require a specific radio for the rom to work. Read further into the thread for whatever rom you're trying to flash.
Supersonic Evo 4G | MIUI | Tapatalk
I am totally new in this business so how to tell if my phone support old baseband or new baseband? Then I bought it it was froyo 2.2.2 i dont remember the software version now, and į upgrade it to gingerbread? Can an update cause my this problem?
Probably need to find a rom that is made for gingerbread. Depends on device how many you will find. You find what radio your using in settings/about phone. Also they have reverts for some phones to get back older radios, opening up more rom possibilities. Hope that's helpful.-B-rye
Sent from my PC36100 using Tapatalk
I accidently formatted my MicroSD card and I lost nand Backup of my original rom. Now I can't use my phone and in settings present rom says: Baseband Unknown
Thanks for support and help. I installed ROM openOptimus as I recall, and it vased on 2.3.3 and and now i got signal!
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.
So i have some experience with these things (flashing and whatnot) with several phones already (htc hero, legend, desire, desire hd, motorola milestone, iconia a500, etc), so i dont get what could be wrong.
So i have this lg optimus one.
Gave it root with z4root method.
Got rom manager installed, flashed the recovery, and rebooted into the recovery.
I formated the sdcard from recovery, entered usb mode, copied several cfw (mostly gb roms) along with some kernels.
I flased my first rom on this phone, and i think it was optimus v3 (or something like that), rebooted, then i got FC, "process com.android.settings has stopped unexpectedly". So im thinking now ... "hmmm .. the kernel must not be the right one". So i search a little and see that there are 2 kernel types, v35 and v32.
So i start flashing another kernel, reboot, but still get the same thing.
So i then start flashing another cfw, but still the same thing.
I flashed several cfw and about 4 kernels by now.
What im i not doing right !?
Where should i check ?
Maybe ur not on the right baseband If u were on Gingerbread when rooting then ur on new baseband but if u were on Froyo then u were on old baseband so check for a ROM with the proper basebabd and try
Sent from my LG-P500 using XDA
hmm .... i was on froyo ... and im trying to flash gb roms ..
can i change the baseband ?
fxandrei said:
hmm .... i was on froyo ... and im trying to flash gb roms ..
can i change the baseband ?
Click to expand...
Click to collapse
Yes you can its in development forum i cant post the link because im by xda app but we have a thread of how to do it with LGMDP.
fxandrei said:
hmm .... i was on froyo ... and im trying to flash gb roms ..
can i change the baseband ?
Click to expand...
Click to collapse
Yes u can..but I'd recommend u to try a ROM which is for old baseband (or for both old and new) and see if it has any problems.if its working perfectly then its the baseband problem.
Try this rom : http://forum.xda-developers.com/showthread.php?t=1463495
there's a seperate download link for old baseband
Orelse try this to update the baseband:
http://forum.xda-developers.com/showthread.php?t=1149530
There's a quick tutorial on how to update the baseband in the ROM link also I provided...please read the whole post carefully and do it
I haven't tried the above mentioned links.
Sent from my LG-P500 using XDA
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.