yashsingh1/xdaforums huggingface dataset:
[Optimus One, P500, V General] fundoozzz:
The problem is KDZ....as u have used KDZ, then you have falshed unrooted stock ROM with original recovery(no custom recovery)

and u cant access stock recovery..pressing home+ volume down + power factory resets the phone... now can u access fastboot mode!!!!

now on as you are not rooted so as per my knowledge u cant flash recovery through fastboot mode also...

All u can do at the moment is flash with KDZ again and boot it up fully... install ROM manager, flash recovery through it (for old BB, this will flash recovery 5.0.2 which is bugfree)

Cross your fingers man & give it a go...

I dont know y used KDZ..it should be the last option to choose...

If you want to know y u were getting no signal was since u were using rooted stock ROM which was for new baseband and with lgmdp u falshed old baseband, so it was very obvious that u wont be getting any signal...At this stage u were good to go then u created mess by flashing with KDZ...Well i m doing my best to help u out.. ;)
[Optimus One, P500, V General] imJyz:
i cant get any GSM on my phone without using KDZ though i know i am a noob and you are really helpful

---------- Post added at 03:17 PM ---------- Previous post was at 03:10 PM ----------

so have u got any suggestions on how i should install this and get signal aswell? thanks
[Optimus One, P500, V General] fundoozzz:
Tell me what exactly u want to do!!! Which ROM u want to falsh.....!!!!
[Optimus One, P500, V General] imJyz:
http://www.manast.com/2011/05/12/ho...droid-gingerbread-2-3-on-lg-optimus-one-p500/

this is the guide im following but im pretty nooby so i dont understand most things
[Optimus One, P500, V General] fundoozzz:
I assume u r having KDZ..

So now instead of flashing with ROM which came with KDZ download this

http://csmg.lgmobile.com:9002/swdata/WEBSW/LGP500/ANEUBK/V20g_00/V20G_00.kdz

and flash this using KDZ....

when u r done with this PM me..... :)
[Optimus One, P500, V General] imJyz:
so when do i use the KDZ ? first or like last etc..
[Optimus One, P500, V General] fundoozzz:
Just KDZ it now with the ROM i provided in the link...then pm me when your phone boots up.....KDZ is hell risky btw...

Edit:- saurabh0217 (skype)
[Optimus One, P500, V General] pt.jcosta:
Good work
[Optimus One, P500, V General] filipeataide:
I'm still not being able to flash the new baseband... Does any of you have an idea why this might be? I am using the correct file (V20g) and am using mik's ROM 7.1...
[Optimus One, P500, V General] :
If your on T-Mobile USA and you want new baeeband,you will not have working mobile data as illustrated by pictures
[Optimus One, P500, V General] ljubisa_sk:
Help some one !!!

i am in emergency mode on my phone and the lg program says trying to communicate with phone and it is trying about 700 sec... What is this is this normal PLS help !@! !
[Optimus One, P500, V General] :
Whatever you do,do not remove anything or you will have a high tech paperweight...did you follow instructions? Die you turn of LG virtual modem? And no I don't think that is normal I've switched back and forth for the past week and I've never once experienced that...
[Optimus One, P500, V General] mcd_legend:
Ok so i changed to new BB

was on mik's 6.5.8 while doing

everything went as said in tutorial

my phone didnt show any signal for it was old BB rom i thought

so i downloaded a new BB rom cm nightly put is sd card and rebooted in recovery now i am stuck on boot logo

it shows LG logo (white)

i cant go to recovery via home+vol down+ power

any think i can do or is it gone
[Optimus One, P500, V General] :
Try adb reboot recovery
[Optimus One, P500, V General] mcd_legend:
thank you man

but i got to emergency mode after 10-12 tries at it

and installed official firmware from LG

using this guide

http://xdaforums.com/showthread.php?t=883314

phonemode == emergency mode

later on i found the culprit it was LGE virtual modem its strange because i disabled it as far as i remember

on the other hand

its still giving problems when i turn it off it takes 2-3 attempts to start

sometimes goes to anroid recovery sometimes turns off during start

but atleast now i can take it and throw it in service center still in warranty
[Optimus One, P500, V General] :
Have you attempted kdz?
[Optimus One, P500, V General] mcd_legend:
yes kdz solved my problem

after flashing in emergency mode
[Optimus One, P500, V General] coreyinoz:
Just wanted to say that the instructions on page 1 worked perfectly for me, the first time around with no fuss...

Thanks.
[Optimus One, P500, V General] u.bindal:
It's written that "ROM or vice versa. Eventually, all new ROMs will switch to new baseband by default."

But i am currently using the ROM "cm-7.2.0-RC0-OptimusOne-KANG-signed".

But when i flash "N2-CyanogenMod-7.2.0-RC0-OptimusOne-KANG-signed" or "Cyanogenmod 9 (Android 4.0.3) bu lupohirp" , my Baseband become unknown and the GSM stops working.

What to do ??
[Optimus One, P500, V General] fundoozzz:
might be u r using old baseband
[Optimus One, P500, V General] u.bindal:
friend, i never switched baseband and have a question..

Int this method given above to change basenand, first we download the new baseband .7z file on my pc..

when we extarct it and run LGMDP-v1.5 , i can't find any device there, should my mobile be connect to pc in "Turn on USB storage mode" or "USB Devlopment" so that my pc can detect a device..?

---------- Post added at 01:00 PM ---------- Previous post was at 12:53 PM ----------

friend, i am new, and have very less idea how to change baseband..

i read the instruction, download the new baseband .7z file and opened "LGMDP-v1.5.exe" after extracting the .7z file..

When when i click it, there is no device in the SELECT PORT page..

at that time should my be connect to pc in "USB Storage mode" or "USB Development mode" so that my moblie becomes visible in Select Post page..??
[Optimus One, P500, V General] :
Extract the 7z folder,select 1.5 tool,have usb debugging on usb mass storage off...you need to have lg usb drivers installed,google for drivers....once you have all of that,run the software select the extracted 7z folder (baseband) of choice,than follow thread instructions..when you run into NV_FAIL_S, just hit continue,next screen will show download complete...Congrats you now have baseband of choice
[Optimus One, P500, V General] :
Important notice* make sure lg virtual modem is off,its under device manager than modems on pc
[Optimus One, P500, V General] u.bindal:
"Let it do the job. It will backup your IMEI and MACs to .NV2 file, reboot your phone to emergency mode, flash recovery, reboot and restore the NV2 backup. "

How to reboot phone to emergency mode, flash revovery, reboot and restore the NV2 backup...??
[Optimus One, P500, V General] sweetnsour:
Everything is done by the program. All you need to do is click a button.
[Optimus One, P500, V General] u.bindal:
@Jrhodes85,

You mean "LGE Android Platform USB Modem" should be disabled, right ?
[Optimus One, P500, V General] :
Yes thank you for fixing my mistake...
[Optimus One, P500, V General] u.bindal:
Hey, i am currently using unofficial cyanogenmod 7.2... if i want new baseband, is it possible that i first switch to lg official gingerbread ( i will get new baseband officially) and then i flash a unofficial rom supporting new baseband... will this idea work...?
[Optimus One, P500, V General] fundoozzz:
for this u need to flash ROM via kdz which is more risky then using lgmdp...

I suggest flashing baseband via lgmdp...
[Optimus One, P500, V General] u.bindal:
I thought that this idea would be less risky.. but while flashing the official rom, won't it switch to new baseband by itself..?
[Optimus One, P500, V General] fundoozzz:
it will but there r far more cases of device getting bricked by kdz then lgmdp
[Optimus One, P500, V General] u.bindal:
Thats what i am asking, when we switch to official gingrtbread, doesn't the baseband get updated by itself..?? Or do we need to use kdz in that case also..?
[Optimus One, P500, V General] fundoozzz:
it will get updated if u use kdz and not through restoring nandroid backup.....
[Optimus One, P500, V General] u.bindal:
So if now i have to switch to original gingerbread without backup, i need to use kdz only (and i can't do it by just flashing it)....?
[Optimus One, P500, V General] fundoozzz:
no... either kdz or lgmdp
[Optimus One, P500, V General] u.bindal:
But i think that i made a backup of froyo before switching to cyanogenmod gingerbread... if i restore that backup and then switch to official gingerbread, then i can do it without kdz/lgmdp.. and that would be the safest way.. isn't it..?
[Optimus One, P500, V General] fundoozzz:
ya...u can try this
[Optimus One, P500, V General] abhinav quietly brilliant:
no you don't need to restore your froyo backup... just connect your phone to pc switch on usb debugging in settings>application>development.. now open the kdz.exe in your pc and select 3gqct option in type and Diag in phone mode now select the gingerbread.kdz file you have downloaded and select update. wait for 5 minutes and now your o1 is on stock gingerbread

press thanks if i helped you
[Optimus One, P500, V General] fundoozzz:
check few posts back dude..... he already know this.. he was thinking of skipping kdz & lgmdp... get back to official froyo... then update to official gb through lg tool...
[Optimus One, P500, V General] u.bindal:
Exactly.. thats what i am thinking.. and that may be best way also..without any risk.. isn't it..?
[Optimus One, P500, V General] fundoozzz:
dude there is always a thanks button u can press if someone takes time n helps you out.... ;) n ya it will be safest method n if then also something goes wrong then u can always go to service centre arguing that while updating it went dead...
[Optimus One, P500, V General] u.bindal:
Thankkkss...!! Pressed thanks button also... :p

Listen, i have a froyo backup, but to retore it..?? :p
[Optimus One, P500, V General] fundoozzz:
what problem do u have restoring!! go to recovery n restore that....

place the backup in sdcard/clockworkmod/backup... thats it:)
[Optimus One, P500, V General] pdrmendes:
Hi,

I have done everything as described in the first post but still dont have GSM signal.

And when I open LGMDP again and click in Download / Select Port in Phone stil V10q.

Tryed everything, cant make it work. Any help??

I'm using this Rom: N2-CyanogenMod-7.2.0-RC0-OptimusOne-KANG
[Optimus One, P500, V General] bluntman420:
Really sorry if this has been asked before, but i just flashed v20a kdz file and according to OP's howto it has the old baseband. Can i flash the new baseband v20G? Also, why do some gingerbread kdz's have old and some have new?
[Optimus One, P500, V General] mihir2412:
no imei

i RUINED IT

now no gsm !!!

any idea at all!!!!!!!!!!
[Optimus One, P500, V General] fundoozzz:
what u did!!

can u describe...

I successfully moved from new to old then again to new.. may be I can help... :)
[Optimus One, P500, V General] mihir2412:
yes i wanted void forever() too so wanted too move old baseband

i connected my phone

downloaded 10 wala zip

extraact karke chalu kiya par wo bakup nai hota

aur to download bhi nai hota

devoid froyo finali wanted acutally
[Optimus One, P500, V General] fundoozzz:
First of all...plz use English.. thats the standard language here in xda...

during the procedure did your phone went into emergency mode and then did the software said download complete....

tell me what u actually have... which ROM... u started lgmdp, how much did u proceed where it got stuck... everything dude.... then only I can help... :)
[Optimus One, P500, V General] mihir2412:
yup it went into recovery then it turned off n was charging in shut down mode!!
[Optimus One, P500, V General] fundoozzz:
then u turned it on.... then did it restored the backup!!
[Optimus One, P500, V General] mihir2412:
turn it on while still connected to usb?????

---------- Post added at 11:20 PM ---------- Previous post was at 11:20 PM ----------

NO I removed it asumingit has stopped
[Optimus One, P500, V General] fundoozzz:
I hope u had not deleted the backup it automatically made before going to emergency mode... now do this... connect phone and restore the backup... currently your device is not having imei no..

and yeah u can always press the thanks button if some one helps u out.. ;)
[Optimus One, P500, V General] mihir2412:
THANLKS WLL try
[Optimus One, P500, V General] Jaani:
Does anybody upgraded to 20H baseband which is the latest?if yes then what is the difference between 20G & 20H basebands???
[Optimus One, P500, V General] bluntman420:
Once again, i flashed v20a but the baseband shows amss6038. Do i have the new baseband or not? OR should i flash the v20g baseband?
[Optimus One, P500, V General] abhinav quietly brilliant:
yeah not much difference better 3g and gps lock other then this i didn't find any difference btw a nice battery backup in v20h

Press thanx if i helped you.. :D

Sent from LG-P500 using xda premium
[Optimus One, P500, V General] NotLuis:
Hello, I'm having a problem I hope you can help me with:

I have new baseband v20 E

Root access

I have ROM Manager/clockworkmod recovery

I flashed this ROM:

N-SERIES, .35 KERNEL, NEW BASEBAND Baseband v20G

[10JAN]N2-CyanogenMod-7.2.0-RC0-OptimusOne-KANG

I did the all the steps of this HOWTO also using this file: P500-v20G-baseband.7z, everything good until the last step, the phone goes on emergency mode and reboots once, then the programs says DOWNLOAD COMPLETE like it's suppose too, but the phone goes off and isn't rebooting automatically, it just stays turned off, connected still to the usb, but I can't turn it on connected, so I disconnect it to power it on, I try to restore my APN files but they don't paste, then I try to make fill the APN manually and doesn't save, so, can you tell me what can I possibly be doing wrong? I will appreciate your help guys, I'm frustrated.
[Optimus One, P500, V General] brakis:
cannot get back to old baseband

hi, I am using an Optimus T (from t-mobile) with WIND in Canada.

I have been trying to get a signal of any kind working for days now. My Lg Optimus T was on stock froyo 2.2, then i flashed cm7.2 nightlies. I tried aspee's old baseband fix but no signal, so i tried using LGMDP.exe with v20G. It went smoothly and LGMDP said that i had v20G but it didnt work with new baseband ROMS! I then tried to go back to an old baseband ROM (F3-CyanogenMod-7.2.0-RC0-OptimusOne-KANG) and used LGMDP.exe with v10E. But after i reboot it still doesn't work. Also it says that i have v20G in LGMDP even after it runs and reboots.

Here is a photo of what LGMDP.exe tells me when i plug in. It seems that i have new baseband, but i cant get any signal in either Cm7 nightlies, or adfad666's N2.

I appreciate your help.
[Optimus One, P500, V General] schoolex:
Good

Good guide :):):):):):):)
[Optimus One, P500, V General] j3toxic:
Hey!

Actually m somewhat confused .

M currently using CM NightlyFourE v4.2 (OLD BB).

So which zip so i select P500-v20G-baseband.7z or P500-v10E-baseband.7z for flashing the new baseband??

And also can i apply this method directly on on my currently running NightlyFourE v4.2 (OLD BB) rom ? or i need to flash the official 2.3 and then try dis method ?

Plz pzl let me kno!

Thnx!!! :)
[Optimus One, P500, V General] fundoozzz:
u need to flash v20g one... and u can apply on this ROM... no need to return to stock... :-)
[Optimus One, P500, V General] j3toxic:
it wont brick my phone na ??

n even i heard something to disable from Device manager ?

I didnt got tht ? Can u tel me wht exactly was tht ??

THNX!! :)
[Optimus One, P500, V General] fundoozzz:
most probably it won't brick... but u know nothing is fool proof in android....

I had did this twice with success.... and when u plug in your device, u need to disable lg mobile modem in device manager in computer before starting the process....
[Optimus One, P500, V General] j3toxic:
Should i disable dis after plugging in my usb cable or before getting ready to start this process ??? :)
[Optimus One, P500, V General] abhinav quietly brilliant:
might be the version of nightlies you flashed doesn't support apn.. i remember there's a fix in the nightlies thread you need to find that..?
[Optimus One, P500, V General] abhinav quietly brilliant:
before getting ready for the process..
[Optimus One, P500, V General] abhinav quietly brilliant:
try flashing the baseband again... otherwise you have to flash the stock froyo using kdz method to have singals..
[Optimus One, P500, V General] brakis:
Okay, i tried flashing old baseband again and no luck. I am going to try and get back to stock 2.2 froyo v10E using this method http://xdaforums.com/showthread.php?t=1324105. If i get back to stock froyo, i will get my old baseband back right?

Thank You!
[Optimus One, P500, V General] bluntman420:
Once again, i flashed v20a but the baseband shows amss6038. Do i have the new baseband or not? OR should i flash the v20g baseband? I am not getting any help here? Someone have an explanation?
[Optimus One, P500, V General] Bec de Xorbin:
Why the hell do you keep flashing v20a?
[Optimus One, P500, V General] :
Just flash v20g...
[Optimus One, P500, V General] bluntman420:
I'm in canada and the gingerbread update for me is v20a. But it shows baseband as amss6038. Can i just flash v20g baseband?
[Optimus One, P500, V General] sweetnsour:
Did you not understand this message? If not, just flash v20g :p
[Optimus One, P500, V General] fundoozzz:
If u dont know then plz dont reply with wrong info......

Modem will show up in device manager only after u plug in the device into usb...
[Optimus One, P500, V General] Nu9:
hi, i follow this tutorial and it ends normally as expected but now when i flashed a rom for NBB it as no signal,etc.

i've the backup NV file but i tried do restore and it's the same -.-. need some help
[Optimus One, P500, V General] BigBoyPL:
LGMDP NV backup for LGP500 is useless. I've try to change Model, version of firmware, baseband, IMEI and BT adresses, than save .nv2 file than upload. Uploaded and it's always same as orginal. I've try to restore backup from other phone, still same IMEI,BT and all others.
[Optimus One, P500, V General] Keeeno320:
Big thanks

Thanks You , I Really Love How Much Work You Did To Help us Out here, I Have A great Working signal With ICS . ^_^ :D:D
[Optimus One, P500, V General] jaibar:
Same problem here- was definitely on v10, flashed v20 according to the OP, everything went fine (just as described in OP) but ended with a long table of "nv fail" errors.

Then, after ok'ing I get the "download complete!" message (and it looks like v20 installed, attaching picture). Is this normally?

Anyway, phone bootloops after this, so only thing I can do is enter to recovery...

Any ideas? Should I retry flashing new BB, or reinstall compatible rom (e.g. cm9)?

[edit] reinstalled rom + kernel (from this thread http://xdaforums.com/showthread.php?t=1517939) but I don't get signal/data. Is there a way to verify which baseband the phone has? (settings --> about phone --> baseband version shows v07u-000-000-mar-23-2009 --> ??? not very helpful...)

[edit2] although there is no signal in statusbar icon, I do have data and calls, so I guess it worked after all...
[Optimus One, P500, V General] Herox:
I am kind of lost. I got to reboot your phone to emergency mode, flash recovery, reboot and restore the NV2 backup. How to I reboot emergency mode?
[Optimus One, P500, V General] sweetnsour:
Everything is all automated once you click "Download"

Clicking that button will boot your phone into emergency mode for you.
[Optimus One, P500, V General] Herox:
Thats what i do not get. so after its all done and dandy my phone shut off. Is that when I flash the rom on? I did notice it says restored on reboot. I read all this and it kind of freaks me a little. I have done stuff liek this plenty and it always puts me a little on edge.

Ok I flashed the wrong one because I didnt understand at first so now I flashed the one I want, which is for new BB roms. I thought I had to flash based on the original but now I see it. So is this it? Its done? I flash and be on my way?
[Optimus One, P500, V General] sweetnsour:
You are good to go once it says "Download complete" in LGDMP.
[Optimus One, P500, V General] Herox:
Thank you so much. I reflashed my rom and now I have calling and texting but it did not seem to grab my APN. I am using http://xdaforums.com/showthread.php?t=1521730 but you know that. My phone is unlocked using ATT. I am about to TRY to put in my APN and I say try because the last rom that I had this happen refused to get add my APN info after I saved it.
[Optimus One, P500, V General] sweetnsour:
I think the solution to the APN problem can be found here:

http://xdaforums.com/showthread.php?t=1444250

(check first post, "APN/Funny sim fix")
[Optimus One, P500, V General] JasperHTC-Touch:
Hi everyone, just one question: what have I to do? I flashed the cm9 beta4 on my p500 there wasn't baseband, it said UNKNOWN baseband. So I went to the thread to read about baseband, and in the first post it said:"ROM WILL BE ONLY NEW BASEBAND 'CAUSE CYANOGENMOD SUPPORT IT NATIVELY!" I downloaded the v20g baseband and put the baseband on the phone following step by step your instructions (i did this process few days ago with cm7 and all went good), and now i'm stuck in emergency mode and lgmdp in timeout after 20 min of amsss burnig. I didn't touch anything as you said..

what i have to do now? unplug the usb and reboot?

edit: i unplugged the phone and kdz doesn't work.. the phone is bricked
[Optimus One, P500, V General] yash3339:
Sorry to hear that Jasper :(

@doktor: I love you man. I'm on new BB now, thanks to you \m/
[Optimus One, P500, V General] fundoozzz:
i had already read it somewhere in cm9 thread....

Do not flash baseband while on cm9 as while phone gets restarted, it isn't recognised in cm9
[Optimus One, P500, V General] Echelonex:
Dok should put in first post "not to update BB while on CM9".

I flashed new baseband while i was in Perfect peso2.2 and it got a bunch off errors, but after clicking ok it said download successful, but the phone stayed shut down so i needed to unplug it and turn it on. On first boot it bas black screen with bunch of white letters saying some kind of error and phone restarted and after that it booted normaly, and everything worked well, exept that in baseband there were just a few strange symbols and not baseband version! :confused:

Anyhow, then i flashed ICS beta 4 and in baseband version it says: V07u-000-000-MAR-23-2009? Is it right??? I thought it should be v20g, but gsm works regardless...o.O So i tried updating my BB once more and everything went ok without errors this time, exept when it finished, phone was again off so i needed to unplug it and turn it on, but it still says baseband v07u???:confused:

It all works well but is this a problem?:confused:
[Optimus One, P500, V General] fundoozzz:
Strange symbols in baseband is normal, its a ROM problem,

n dont worry abt what it shows in basbeband version till gsm is working....:D
[Optimus One, P500, V General] normal73:
:( i cant do this. Please Help :(
[Optimus One, P500, V General] pedley:
ok so if we can't flash new baseband whilst using cm9 is the best way to flash somthing like this http://xdaforums.com/showthread.php?t=1125870 which is the rom I was using. Flash new baseband and then re flash cm9
[Optimus One, P500, V General] fundoozzz:
yup thats the right way to go..... :)
[Optimus One, P500, V General] Bennji:
I have done exactly what you have done and stuck on TIMOUT after 20odd minutes, how do I get out of this?

HELP

---------- Post added at 11:35 PM ---------- Previous post was at 10:57 PM ----------

It's now moved to 'Download end' with 'Error! AMSS' written at the bottom.

Phone is still in Emergency Mode.

What next?
[Optimus One, P500, V General] Bennji:
Can I assume that due to the lack of response that I am now the proud owner of a plastic frisby?