yashsingh1/xdaforums huggingface dataset:
[Optimus One, P500, V General] deniso177:
Hey guys, reading this full thead looks like a lot of people do have troubles, especially with sim card stop being seen.

If anyone is interested try this ALTERNATIVE method to flash baseband using KDZ updater, which is the official Lg firmware updater it has the links to the tools you need.

This method should result in no problems, have a try for yourself.

http://xdaforums.com/showthread.php?t=1301489
[Optimus One, P500, V General] fundoozzz:
guys I just read that even if u had nandroid backup before flashing old baseband.... u can't revert to the new one just by restoring the nandroid backup i.e. u need to follow the whole lgmdp process again.. :-(

is this true??
[Optimus One, P500, V General] Optimus01:
mhm - I asume I've to restore my IMEI now, otherwise it's gone for ever, or ?

In the moment my LGP500 is working with WiFi very well. So it seems, tht the WiFi-MAC address could be restored, but not the IMEI :(

Or is it possible, that with V20e and the old Baseband I'm not able zu see the IMEI?

My stored nv2 is about 179KB, is it OK, or is it too small?
[Optimus One, P500, V General] deniso177:
Mik_os stated that can be one of the official firmware bugs 2, a missing IMEI, just flash using kdz as that restores your phone to the exact factory reset it is when it is sold ( just different countries addons)
[Optimus One, P500, V General] Optimus01:
Seems to be True ....

Now I afterward flashed cm7, but it hangs in the CM7-Logo. After a wipe in recovery mode, CM7 starts perfect :D
[Optimus One, P500, V General] vlt96:
Same to me;)
[Optimus One, P500, V General] iverson01:
this can be done when i already have mik's 6.5.8 installed?
[Optimus One, P500, V General] wikusq:
hallo!

i have small question

744989b467c9dc29c653b71ba6b38612.png -> its correct adress (picture)

can i start downloading old baseband?

why "NV Default" is empty?
[Optimus One, P500, V General] Teraman:
hello, i have new baseband and i want to try cm. Will i have gsm working if i just flash baseband fix patch by milk?
[Optimus One, P500, V General] shreyas.kukde:
Please Help...

I have the same problem as everyone here... upgraded to official gb 2.3 but when switched to cm7, no signal, back to stock 2.2, no signal, flashed the v10e baseband, still no signal, mik's patch fixex the signal, but whats the point in hvingno data connectivity? isnt there any permanent fix to this?
[Optimus One, P500, V General] fundoozzz:
ya u will have gsm network but no data....

for data u need to downgrade baseband

press THANKS if I helped

Optimus One

Mik's Cyanogenmod 6.5.8
[Optimus One, P500, V General] gosvnt:
I've got this exact same problem, i flashed everything without getting any error messages in kdz and lgmdp tool, everything works besides sim / service.

is there anything else i could try?
[Optimus One, P500, V General] Turducken:
Post removed... sorry
[Optimus One, P500, V General] gosvnt:
just to add that my own sim / gsm / no service problems were due to a broken .nv2 during lgmdp flashing.

i solved via a lgmdp nv restore

so if you're sure you flashed the right baseband for your rom and still get no data / service maybe look into restoring a valid .nv2
[Optimus One, P500, V General] xenius9:
i flash new 20g.dz via lgdmp and all is ok.(i restore phone from emergence mode)

Then i flash old baseband - all ok.

Then i flash newbaseband - error while restore nv2 backup - (((

I reflash oldbaseband from backup and now all working.
[Optimus One, P500, V General] harv65:
lgdmp will not read my phone any help
[Optimus One, P500, V General] mastaeit:
Here's a bit of help. It's from the FIRST post.

Q: My phone is not detected by the LGMDP-v1.5.exe utility! What to do?

A: Run devmgmt.msc (Device Manager), go to Ports (COM and LPT) and disable LGE Virtual Modem there. Disconnect and reconnect your phone and try again.
[Optimus One, P500, V General] Jeanjacq:
Does this work with optimus V?
[Optimus One, P500, V General] morocanz:
Im using dax rom base on cm7, i tried this method and now my phone bricked could not power on, no lights no everything what is relly hapen here any idea guyz

---------- Post added at 11:12 PM ---------- Previous post was at 11:00 PM ----------

hello guyz im running on cm7 by mik 6.5.8 i use this method try to get the new baseband for data but i think is not complete flashing an then phone could not power on, no light on screen, even on 4 button, i have try the combination key nothing happen i think is totaly bricked, any one can help on this
[Optimus One, P500, V General] bharadwajex:
thanks it helped a lot
[Optimus One, P500, V General] hosseinriasati:
How to restore NV2?

Hi!

How can I restore my nv2? I have LGMDP-v1.5, but when I press restore NV2, it says "NV2 doesn't exist." It is located where it should be! It is named "NV_P500_20110808-212402.nv2"! Where the hell should it be?

Also, when I want to flash the baseband using my NV2, there is no option to choose that file.

Please help me.

Thanks so much.
[Optimus One, P500, V General] snitch_95:
I have a VERY similar, if not identical, problem.

I did everything you said, but when it came to restoring the .nv2 file, I got this list of errors all saying "Fail". So I disabled the LGE Virtual Modem like you said, and (foolishly) pulled out the battery in order to get out of Emergency Mode. I rebooted and -- no GSM. I tried using LGMPD but I kept getting the errors. I rebooted my PC and tried recovering a backup image I had made with ClockworkMod's Recovery, to no avail. I then went into emergency mode and tried again. Yet again, NOTHING. Could somebody please help?
[Optimus One, P500, V General] hosseinriasati:
Reviving a dead P500!

Hi,

I'd like to share my experience for those having problems with nv2.

3 days ago, my Optimus One couldn't boot at all. The only working part was the Emergency Mode. KDZ couldn't fix this as it didn't recognize the chipset.

I used LGDMP and upgraded to V20 Romania, but there was no signal. I figured out that the NV2 was gone! But the good point was that luckily I had backed up my NV2 a few months ago. But I couldn't restore it at all. LGDMP said: "NV2 file doesn't exist". Actually this file should be in a folder named as "_COM_6_". Notice that 6 is the COM port I used in my own PC. Yours might be different. Then create another folder having the same name as your IMEI and put _COM_6_ in it. For example: LGDMP/3540430**********/_COM_20_/NV_P500_20110808-212402.nv2

But the point is that the NV2 can't be restored while the phone is connected to your PC in Emergency Mode. So all you have to do is to install a ROM, whatever it is (I used CM7), and enable USB Debugging, and then connect it to your PC. Now Open LGDMP and Select Port, and finally NV2 Restore.

I was happy I could bring my dead mobile phone back to life.

I hope this can help you.

Hossein from Iran!
[Optimus One, P500, V General] wapmorgan:
I do everything according to instructions from http://xdaforums.com/showthread.php?t=1149530, but after clicking Download in the status bar of the program "TIMEOUT" ... and he hung there a minute and a half, then there is http://img708.imageshack.us/img708/2961/fastboot5.png, after going "TIMEOUT" 30 seconds, then the error "Error! SPC". The smartphone is no longer defined - only "NOT_ACTIVE", after reconnecting again everything is fine - everything is determined. What should I do? NV-Backup already done.

I'm doing it all in linux with WinXP in Virtual Box
[Optimus One, P500, V General] hosseinriasati:
You know, LGDMP is so sensitive about the ports. I recommend that you use a windows-based PC. Disconnect all other ports. Then try again!
[Optimus One, P500, V General] Kons90:
Ok guys I have problem. I just flashed old baseband but when I turn on my phone after flashing I still see software version: LG-P500-V20G - why ? :/

I lost my IMEI after that...When I apply CM fro recovery now it's be okay or something wrong ?
[Optimus One, P500, V General] jeremysherriff:
No thanks button? THANKS!!
[Optimus One, P500, V General] suyashc:
After flashing baseband gsm is working but mobile data dont work on cm7....

After that i flashed 10a version via kdz.....

but there also data was not working on cm7 and also on 2.2 and other rom.

but when i flashed 2.3.3 via kdz.mobile data is working on 2.3.3....

PLEASE tell me how do i solve the mobile data problem on 2.2 and cm7 after flashing baseband too??and i am able to save apn but still mobile data not working...
[Optimus One, P500, V General] Kaerper:
I Have the same problem. Mobile data doesnt work while gsm is working just fine....
[Optimus One, P500, V General] calculus1918:
upgraded the baseband via the lgmdp with a US version optimus. At the end of the flash, got the NV_Fail error for 1-157, was worried like crazy because phone did not have GSM or IMEI. Make a long story short, after trying to recover the old baseband and flashing the new one again, even with the errors, I wiped and flashed adfad's newest N1 Rom. Now phone is working, gsm and imei is back. I have two questions:

1. Do I have the newest baseband if the n1 rom is working with gsm and imei.

2. The reason for the 1st question is that I have NEVER been able to enter the hidden LG menu with 3845#*509# or 3845#*500# on this phone in the U.S., keeps telling me Connection problem or invalid MMI code.

At least the phone is working, thought I bricked it, I have obsessive upgrade rom disorder as well, nothing was wrong with A7 and I went to this for the last 2 hours, lol, lol, thanks again for everything!!!
[Optimus One, P500, V General] Djidara:
OK, i was on mik's 6.5.8. I followed every step and flashed new baseband, at the end it showed some errors and stuff and i was like wtf, then i clicked ok and phone rebooted. After reboot i had no signal, checked IMEI, empty. Then i was like, omfg bricked, why am i so stupid, why do i need to flash everything. But then i was like, u idiot, u have rom for old baseband, so i downloaded adfad666's CM7(N1), wiped everything, flashed, booted and it worked. Me happy :D

thanks for tut :-)
[Optimus One, P500, V General] bigiuly:
Hello.

It happening like calculus1918, at the end of the flash, got the NV_Fail error for 1-157, and nothing was changed to my phone. it works in old baseband and don't have gsm signal in new basband.

:mad:

I tried a lot of time and i quit
[Optimus One, P500, V General] sprite00:
HELP!

can anyone help me? when i press download i don't find my phone :(. what i did wrong?
[Optimus One, P500, V General] jsevilleja:
V20G Baseband puts the phone on roaming

Hi, I'm from Spain (and my mobile is in Spain too). When using the V20G Baseband, I view the connection as if I were on roaming. Doesn't happen with V10E.
[Optimus One, P500, V General] hosseinriasati:
Make sure you have installed "LG United Mobile Driver" and "LG Bluetooth Drivers".

Disconnect all other USB ports. Restart your computer and try again.

Q: My phone is not detected by the LGMDP-v1.5.exe utility! What to do?

A: Run devmgmt.msc (Device Manager), go to Ports (COM and LPT) and disable LGE Virtual Modem there. Disconnect and reconnect your phone and try again.
[Optimus One, P500, V General] ilcontegis:
I have the mik_ok CM7 on my Optimus One and I would like to update the baseband and install a new rom. I read several times the tutorial but there is one point that I cannot understand.

Maybe I am retarded, but I do not understand this part of the sentence. I would appreciate if someone could kindly explain to me.

1. It does the backup OK

2. reboot the phone to emergency mode OK

3. flash recovery - which recovery? from where? How?

4. Reboot and restore the NV2 backup OK

Thank you for your time

Regards
[Optimus One, P500, V General] Sandipkim:
+1

10 Char
[Optimus One, P500, V General] Sandipkim:
THANX a lot mAN...:D
[Optimus One, P500, V General] abhinav quietly brilliant:
this doesnot work u have to completly switch back to old baseband by flashing the old official rom using kdz updater

lg o1

rom: mik_os 6.5.8 (android 2.3.7)

overclocked max 806 mhz min 600 mhz
[Optimus One, P500, V General] ShawtyT:
Okay wtf!!

I did everything exactly as it says. But no IMEI no nothing!! Baseband unknown Im screwed for life!

I was on Stock Gingerbread and flashed mik's CM7.1 v6.5.8

At first there was no signal so i checked out the post and in the FAQ's there was the gsmfix and i flashed it and my signal was working again. But no mobile data. I wasnt even recieving the settings message. Tried to put the APN settings myself but it would ask for MNC. I googled that and came across a post and entered it the MNC but it wont save.

Then i came across this thread and followed every word of it. Since Im running miks CM7 and it was based on froyo, i downloaded the v10E baseband and did it but no IMEI and no nothing im doomed :'(

Where did i go wrong?? Someone please help :(

I still have the NV2 backup i think because i havent deleted anything and it obviously cant delete itself.... Please help someone!
[Optimus One, P500, V General] MickaelX:
Used this so many times with no problems, thanks man
[Optimus One, P500, V General] btabangay:
hi guys.just asking if theres a problem with some errors on NV after flashing new baseband. But it says completed..When i check my phone.It does have 3g signal and GSM.
[Optimus One, P500, V General] teddybig:
Flash the revert patch
[Optimus One, P500, V General] Beenees:
Same here. Got NV errors in the end, pressed ok and it said 'download completed'. Rebooted, WCDMA(?) is working but no gsm and no data
[Optimus One, P500, V General] dimitris444:
Hi guys I did what the instructions said but in the end I had an error during NV restore (timeout). Now my phone is not booting. When it starts it only shows “ LG “. Is there any solution for this?
[Optimus One, P500, V General] cristiano95:
guys , but the usb must be plugged in, but the phone has to be connected to pc, i mean if the sd cards to appear on the pc.
[Optimus One, P500, V General] fundoozzz:
PLZ HELP

I flashed new baseband ... everything went fine without errors but when rebooted..

Baseband - Unknown

IMEI - Unknown

Tried restoring NV2 backup but of no use..

Presentl i am on mik 6.5.8

could this be the problem...
[Optimus One, P500, V General] mihir287:
Flash an official GB based rom and see.
[Optimus One, P500, V General] fundoozzz:
I had an idea that the problem was due to ROM as when I was connecting to lgmdp it was showing me imei. ..

So i flashed nightly 9 n everything is back.. .
[Optimus One, P500, V General] steveroo:
I had my whole cry story ready to send and I looked at my phone once more before sending the message and for some god saving reason my phone started working!!!

hallelujah!

okay, okay. best part about having first bandband is I now have flash 10 woot woot. worst part so far is the tool bar changed and scrolling between apps in menu is different. but who cares... i can now watch live sports.
[Optimus One, P500, V General] abrahim:
Thank You!

Thank You! This guide has been a helluva lot of help!

Just one thing: I had to manually switch on the phone while installing new baseband on CM7.

Thought this would help anyone stuck on "restore after reboot".

Thank You.
[Optimus One, P500, V General] deniso177:
If people are worried about losing IMEI and bricking your phone like many of the users reported use KDZ to flash original Froyo/Gingerbread firmware.

http://xdaforums.com/showthread.php?t=1301489

This might take a little longer, but at least minimises chance of brickin your phone
[Optimus One, P500, V General] Ecuadude:
Yea same here my gsm works but I

get no data I'm on Tmobile
[Optimus One, P500, V General] PiyushDawande:
GR8!! Hope this works for the CM9 by lupohirp...looking forward to try it out
[Optimus One, P500, V General] Beenees:
Same here, T mobile uk.
[Optimus One, P500, V General] arczangel:
anyone with the download link of LGMDP? seems i cant find it?

thanks!
[Optimus One, P500, V General] rishabh22:
Try This
[Optimus One, P500, V General] sachin kamboj:
Lgmdp is in present in the baseband zips attached to the first post already...
[Optimus One, P500, V General] vj_dustin:
flawless, thnx.. :D

tried on Oxygen 2.3.2, now on CM7 17# nightly :D
[Optimus One, P500, V General] Beenees:
Anyone on T mobile has no problem with data on new baseband, please report so we can identify the problem. TY
[Optimus One, P500, V General] Snickers:
I don't know what am I doing wrong, because i follow the manual and still get 100+ errors with nv restore.

Edit: now it is magicly working... So thank for guide. ;)
[Optimus One, P500, V General] filipeataide:
Hey there guys,

I dont know what I am doing wrong, but after running this guide for new baseband I still get the old one in my phone. No errors at all during the process... Can you help me on this?
[Optimus One, P500, V General] fundoozzz:
Might be you are flashing old baseband.. you need to download p500 v20G one..
[Optimus One, P500, V General] filipeataide:
I did flash the new baseband V20G. I downloaded it and flashed and the result was as if I had flashed the old one... afterwards I tried to flash the old one and it turned out the same... Can any of you guys send me your V20G zip file? Is it necessary to wipe anything before?
[Optimus One, P500, V General] fundoozzz:
No need to wipe anything... files in the link are correct files...I too flashed them few days before..

btw which ROM are u currently using!!!
[Optimus One, P500, V General] filipeataide:
I tried n2 from cyanogen7.2. Of adfad. It didnt work probably due to baseband but im sure i flashed the correct one. Then i tried f3 and it worked. I guess smthing is preventing the bb update...
[Optimus One, P500, V General] kristijan.mkd:
Problem

The utility stopped at the last step (It will restore after rebooting) and the phone is now just black. I didn't touched anything. Should i unplug it or something?
[Optimus One, P500, V General] sachin kamboj:
No, wait till its done , it rebooted twice for me... (it will say doanload complete)
[Optimus One, P500, V General] choder:
Checking? How many seconds?

Currently it is showing checking and it is at over 1000 seconds. How long do you let it go for? A few people have asked the same question and I don't see a reply.

Thank you.
[Optimus One, P500, V General] :
So am I to get this right ? v10e-old baseband ? Im thinking both versions are new baseband since v10e was never stated specifically to old baseband but was provided as a 7z download link below v20g....I have flashed v10e, it shows under baseband version using nightlyfoure v3.8....for some reason when i flash v20g, i cant add tmobile usa APN and I never get notification in status bar of a 3g/hdma icon, just bars so now everythings working for me on v10e
[Optimus One, P500, V General] mihir287:
No, v10* is most definitely the old baseband, while v20* is definitely the new baseband. And from what I remember the new baseband gives data (APN) problems to T mobile customers in the US (See this and this). So, if you flashed v20g baseband, flashed a nightly (try it just on a pure nightly first), and your GSM n/w is working correctly (calls and stuff) except mobile data, and if you are a T mobile customer in the US, then the correct baseband was flashed (i.e, the new one. Also, you can't tell your baseband from "v07u-000-000-MAR-23-2009").

And if you flash a pure nightly on the old baseband, you will not get any GSM signal.

I also believe that the NightlyFourE rom that you are talking about has an old baseband fix, so if you want you can try it on the old baseband. However, I don't know what works and what doesn't if that patch is used.
[Optimus One, P500, V General] ethan24:
Hi All,

I had downloaded:

P500-v10E-baseband

P500-V20G-baseband

i'm currently holding CM7.1 (6.5.8).

actually I would like to switch to CM7.2 Nightly.

I'm read through the thread. Saying our mik ROM: even the baseband version:

v07u-000-000-MAR-23-2009 is not true to show us which baseband are we in.

screenshot below showing when I run LGMDP-v1.5.exe

am I in old baseband, isn't?

someone can advice - if after I upgrade the baseband to newbaseband? my phone still work with all my date, 2G/3G before I upgrade to Nightly?

ROM: Cyanogen 7.1 (6.5.8)

Kernel: 2.6.32.9 Goldenleaf#4
[Optimus One, P500, V General] fundoozzz:
yes u r on old baseband... and in order to use nightly u need to get new baseband which is v20g

after baseband upgrade, u wont be able to use mik's 6.5.8

CAUTION: never remove battery while changing baseband...
[Optimus One, P500, V General] ethan24:
Thanks a lot,

Let me try out.

However, I know there still have some known bug in Nightly, isn't? especially for mobile data.

I saw from doktornotor

Do NOT proceed until you fully understand the following:

"

- P500-v20G-baseband.7z is for official v20[abdg....] ROMs and ROMs based upon it (e.g., GingerLOL, v20G stock ROM, customized v20G ROM, 0x0v3rfl0w ROM and GingerCriccoROM).

- P500-v10E-baseband.7z is for all other ROMs.

""

So mine should be running

- P500-v10E-baseband.7z

or

P500-v20G-baseband.7z

to get me upgrade to new baseband?

sorry for more clarification, because I must get it right..

I only have one and only one smart phone.

ROM: Cyanogen 7.1 (6.5.8)

Kernel: 2.6.32.9 Goldenleaf#4
[Optimus One, P500, V General] fundoozzz:
LOL

no problems...

its just that inorder to get new baseband u need to flash v20 one..

run lgmdp as administrator and disable lg modem...

with data.... its probably working with nightly...

well there is oxygen too for new base band ....

all the best...
[Optimus One, P500, V General] imJyz:
hey ive been running this for about 35 minutes and my phone is in emergency mode but at the bottom it says Timeout ... what do i do?
[Optimus One, P500, V General] fundoozzz:
is your PC stuck too!! or is it working
[Optimus One, P500, V General] imJyz:
dont worry i fixed it but now when i do the custom recovery and test it it will go to the loading screen of the clockwork then the bar wont load then it will boot up as usual and then go to where it says what language i want like i have just brought the phone but when i do do all that the phone is also already rooted. please help i have been trying to fix this for ages.
[Optimus One, P500, V General] fundoozzz:
go to recovery by holding home + volume down + power..

wipe cache, format data/ factory reset,

advanced tab... wipe dalvik cache and battery stats

mount and storage... format system and boot...

now install zip from sd card...

hope this helps... :-)
[Optimus One, P500, V General] imJyz:
hey i finnally got it to work but now i am getting no service. isnt there something called bbs that can fix this? if so how do i install it but if i have to do this all again but a different way its fine because i know how to do it know easily :D. im from australia btw

edit: now my phone wont even boot up and i cant go in custom recovery.....
[Optimus One, P500, V General] fundoozzz:
can u tell what u exactly did!!
[Optimus One, P500, V General] imJyz:
1. Root phone

2. Install Rom manager

3. Clockwork Recovery thing.

4. Test recovery mode 50% chance it will work for some reson

5. LGMDP 1.5 v10E.

6. Turn phone on to check if works ( success )

7. Turn phone off and do KDZ updater with V10B_00

8. Turn on ( success )

9. Go to recovery... but recovery wont open up...

10. Normal boot up witch reformats the phone. please help :D im thanking all of ur posts because you are really helpfull and i am from australia btw and i did get it working before but i did it without the KDZ but i was getting no signal ( GSM ) i think it is.