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Whats best?

Hi,
I have just bought a 2nd hand Optimus 2x. It came with Android 2.2.2 installed so I ran the mobile support tool to upgrade to Gingerbread to at least try the stock rom before trying anything else.
It said there was an update available but after checking the phone said i have the latest version installed (v20l).
When i checked i have the 725 baseband but the v10b rom.
Does that mean that someone has had a custom rom on it before and loaded the Froyo rom bck on it?
Whats my best option? Go back to older baseband and let phone auto detect and install latest, just flash v20l rom or go to a custom rom i.e. Cyanogen?
Graeme

It seems that the base band has been changed.. its not a problem imo, u can update the fone through the lg update tool on a computer or just do the ota update.. the letters at the end (v20b) is representative of the country but should not affect u.. once u have updated u can root and the down load the get ril app and check if the base band and ril match (if not that app will help u fix it) .. all In all shouldn't be any problems updating
Sent from my Optimus 2X using xda app-developers app

Hi Daren,
I have tried updating OTA and vi the tool but both say i am on the latest version.
How do i get the older baseband back on the phone?
Sent from my Optimus 2x using xda app-developers app

See this thread
http://forum.xda-developers.com/showthread.php?t=1658047
Sent from my Optimus 2X using xda app-developers app

Yeah tonyp's baseband thread is awesome.. really easy to do.. do a back up first tho ... good luck if you don't know which base band u should have try Googling or there is a tool u can use.. u can't reneger what it is but ill find it for u
Sent from my Optimus 2X using xda app-developers app

http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=IMEI
Here u go apparently if u type in ur imei no it will tell you which base band to use
Sent from my Optimus 2X using xda app-developers app

Bootloander??

Hi everyone!if someone knows for sure please tell me..If the ics update for o2x have locked bootloander we can't play with custom kernel...etc..ok?in that case we will have to flash 2.3 firmware again to have unlockend bootloander and flash a custom ics or jb rom with the working drivers?
Sorry for my English!!!!
Sent from my Optimus 2X using xda premium

yes. that's right.

There isn't still an official ICS Update for O2x... However, yes you should return on 2.3 or I think we'll unlock bootloader without problem with a Toolkit like Nexus One etc.

Yes i read right now on general ics discussion.thanks anyway
Sent from my Optimus 2X using xda premium

Official ICS help

Hi guys, my friend has an OB and wants to upgrade to ICS, i've looked on the web and i've seen flashing with KDZ and others, can u link me or tell me how to flash the official firmware. Also if possible, can u give feedback on how smooth it works. Thnx. I personally own a samsung phone so im more familiar with ODIN. Are there any chances of bricking the OB if done the correct procedure? Thnx again.

If the phone is rooted it can easily be flash thru cwm
Sent from my LG-P970 using xda app-developers app

lei0418 said:
If the phone is rooted it can easily be flash thru cwm
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
No its stock gb rom :< he didnt want to root, he's all the offcial type lol unlike meh.

I think the official ics rom gives massive battery drain that's why we choose to install custom ics rom instead try browsing the general forum for the step by step guide of flashing of the ofc rom thru sft,hope i helped
Sent from my LG-P970 using xda app-developers app

You can find all your answers about flash and brick here and about ics here.
Please search a little before you ask a question.

ZEUS ICS without baseband

Hi everybody,
I'm on ZG ROM (based V30B) and I've seen in Huexxxx's post that I must use smart flash tool and flash new baseband. My question is: can I flash IZS without flashing new baseband?
thx

alby.campa said:
Hi everybody,
I'm on ZG ROM (based V30B) and I've seen in Huexxxx's post that I must use smart flash tool and flash new baseband. My question is: can I flash IZS without flashing new baseband?
thx
Click to expand...
Click to collapse
No it's not possible !

Sv: ZEUS ICS without baseband
If you have a v30 baseband you can flash it and if you don't have it you must first flash that.
Regards

No, you don't HAVE to flash v30 baseband. However if you run into baseband related problems then you should. For instance I did not because there is no baseband for my area anyway and it works fine aside from seeing "unknown baseband" in about phone.
Sent from my LG-P970 using xda app-developers app

Sv: ZEUS ICS without baseband
jdayscokn said:
No, you don't HAVE to flash v30 baseband. However if you run into baseband related problems then you should. For instance I did not because there is no baseband for my area anyway and it works fine aside from seeing "unknown baseband" in about phone.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
If he is not on a v30 baseband he should flash the pre izs on huexxx site.
And that contains a v30 baseband so yes it's is required..
Regards

jdayscokn said:
No, you don't HAVE to flash v30 baseband. However if you run into baseband related problems then you should. For instance I did not because there is no baseband for my area anyway and it works fine aside from seeing "unknown baseband" in about phone.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
i ahve the same problem in another rom, nemesis X, baseband unknown, but all seem to work fine except the timezone auto detection that does not work so i had to update time manualy. my biggest question, which baseband should i flash, in my country LG didnt realse a stock v30xx. only stock v10e is the latest update. so what should i do if i run into problems, i can always fallback to another rom or throw this damn phone.
do you know what baseband should i install? since im realy not sure what to do.
thanks
Sol

Chances are it'll be fine with whichever baseband is available. I personally like the idea of using my regions baseband even if it is outdated. I've been on other baseband before and everything generally works. So take your pick if you really want to. But as I said before it is NOT necessary to hop onto IZS.
Sent from my LG-P970 using xda app-developers app

jdayscokn said:
Chances are it'll be fine with whichever baseband is available. I personally like the idea of using my regions baseband even if it is outdated. I've been on other baseband before and everything generally works. So take your pick if you really want to. But as I said before it is NOT necessary to hop onto IZS.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
ok, my idea is that it is higly risky flash a baseband which I don't know what is it. if something going wrong, I think will be very difficult come back (Smart flash with gingerbread again). I keep my "unknown baseband" on my phone and wait for next release: in the IZS post I'm reading a lot of problem posts. I will wait.
thx

alby.campa said:
ok, my idea is that it is higly risky flash a baseband which I don't know what is it. if something going wrong, I think will be very difficult come back (Smart flash with gingerbread again). I keep my "unknown baseband" on my phone and wait for next release: in the IZS post I'm reading a lot of problem posts. I will wait.
thx
Click to expand...
Click to collapse
GPS and automatic timezone don't work if with unknown baseband
Don't worry
Just flash v30c .fls file.

Is it possible to downgrade from jellybean back to ics

Hi guys , need some information, I was just wondering is it possible that I could downgrade back to ics after putting jellybean on my phone?
Your help is appreciated.
All the best
Chris.
Sent from my LT30p using xda premium

Yes it is.
How did you upgrade?
If you upgraded via FlashTool you can just as easily downgrade using the same method, just by using an ICS .TFT instead of the JB one.
Any reason why you want to downgrade?
Make sure you do a complete wipe to make the ROM to be good and dandy, and the battery will get better after a few days.

Sure you can, you just need to flash ics ROM with flashtool (you dont need to have unlocked bootloader)
But I dont see the reason to downgrade
Sent from my LT30p using xda app-developers app

Thanks for the replies, I want to go back to ICS due to the major battery drain that I am getting, I have read a few threads now on here and also esato and jellybean battery seems to be very hit and miss.
I live how fast the phone has become but can't live with a poor battery. Got any ideas before I go back to ICS?
Sent from my LT30p using xda premium

Yes wait a few days, the first few days I'd flashing a Rom are always battery heavy
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gregbradley said:
Yes wait a few days, the first few days I'd flashing a Rom are always battery heavy
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How do I customise the signature on xda premium app?
Click to expand...
Click to collapse
ok well , i have just read that formatting to extenal and internal memory helps , so i have just done that .
as you say its a big upgrade firmware wise so going to give it a couple of days and then look at what the diffrence is again .

Ok so reporting back on my T's jellybean upgrade, seems that it's starting to level out a lot now, as I said in my last post did the memory thing and formatted both And the phone has responded very very well.
Seems to get a whole days usage now and maybe a bit more. I always charge anyways over night so nothing to worry about. How's yours?
Sent from my LT30p using xda premium

i had the same dilema as you to downgrade to 4.0.4...
I noticed today that the phone drains 4 to 8 % battery in standby mode over the night.. i havent noticed something like this in 4.0.4 .
I think the battery management was better.
Anyway i will follow your suggestion to wait a few days to level the situation .
I updated with mac bridge . What is the best method if i decide to downgrade ?
I need a clean install method .Format everything and clean install the rom i decide to install.
Also does the repair option in pc companion or bridge does a clean install;
Thank you

profchaos1981 said:
i had the same dilema as you to downgrade to 4.0.4...
I noticed today that the phone drains 4 to 8 % battery in standby mode over the night.. i havent noticed something like this in 4.0.4 .
I think the battery management was better.
Anyway i will follow your suggestion to wait a few days to level the situation .
I updated with mac bridge . What is the best method if i decide to downgrade ?
I need a clean install method .Format everything and clean install the rom i decide to install.
Click to expand...
Click to collapse
Flash a stock ICS ftf in flashtool
Also does the repair option in pc companion or bridge does a clean install;
Thank you
Click to expand...
Click to collapse
Yes.

thank you so much for your quick reply!
so if i got it right the repair option performs a clean install to the existing rom ..In my case it will reinstall JB 4.1.2
If i choose the flash tool i will choose the rom i want .. So do i get it right?
And if so where can i download the original 4.0.4 rom ? thank you again for your help!

profchaos1981 said:
thank you so much for your quick reply!
so if i got it right the repair option performs a clean install to the existing rom ..In my case it will reinstall JB 4.1.2
Click to expand...
Click to collapse
No, it will install the latest version for you phone/region. It may be ICS or it may be JB, depending if it has been released for you.
If i choose the flash tool i will choose the rom i want .. So do i get it right?
Click to expand...
Click to collapse
yes
And if so where can i download the original 4.0.4 rom ? thank you again for your help!
Click to expand...
Click to collapse
Look in the All in one thread. Its the first thread in the Q&A section and has all available ftf files in post 3.

Yep use the original generic UK tft there on the forum mate there is a whole list of them, use flashtool and you'll have no problems.
In addition to that I downgraded my via flashtool and used pc companion to upgrade to jellybean if that helps also at the same time formatted the memory external and internal and once the upgrade was done wiped all data and set up, I've gone a full 20 Hours now and have 40% left which seems like it's done the trick.
Good luck mate.
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Sent from my LT30p using xda premium

Sorry a better screen for you.
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no luck with repair option.... It restores 4.1.2 and not the factory rom ..which in my case was 4.0.4 or 4.0.1..
So i will download the generic uk 4.0.4 rom and flash it with flash tool ..and thats it ? no other actions required ?
i chose this one [STOCK FIRMWARE] [ROM]LT30p Stock UK GENERIC 4.04 7.0.A.1.303 by batman_112
I also going to use flashtool 0.9.10.1 for mac.
Is it better if i use the official sony flash tool EMA ?

In my opinion the Jelly bean update is more of a downgrade then any thing it's very buggy and has a dated looking ui and the new features have been used before on other manufacturers phones like Motorola the lock screen is gay as **** and the camera is now a 12 megapixel instead of a 13 and the keyboard seems to be the same with no new JB features.
Sent from my LT30p using xda premium

Yeah mate that's exactly it, using that firmware and flashtool you should have no problems at all.
I'm going to carry on playing with jellybean for a couple more days and then reevaluate which firmware I would prefer to be on.
Hope that all goes well for you anyways.
Sent from my LT30p using xda premium

Torres77an said:
In my opinion the Jelly bean update is more of a downgrade then any thing it's very buggy and has a dated looking ui and the new features have been used before on other manufacturers phones like Motorola the lock screen is gay as **** and the camera is now a 12 megapixel instead of a 13 and the keyboard seems to be the same with no new JB features.
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Click to expand...
Click to collapse
I know exactly what you mean mate.
Going to see how jb fairs and then maybe revert back to ICS.
Sent from my LT30p using xda premium

Ok so where In to 28 Hours in and this what I got! Very impressed now.
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profchaos1981 said:
no luck with repair option.... It restores 4.1.2 and not the factory rom ..which in my case was 4.0.4 or 4.0.1..
So i will download the generic uk 4.0.4 rom and flash it with flash tool ..and thats it ? no other actions required ?
i chose this one [STOCK FIRMWARE] [ROM]LT30p Stock UK GENERIC 4.04 7.0.A.1.303 by batman_112
I also going to use flashtool 0.9.10.1 for mac.
Is it better if i use the official sony flash tool EMA ?
Click to expand...
Click to collapse
If pccompanion restores 4.1.2 that is now the factory Rom. It's the latest official Rom for your phone provided by Sony.
If you really want the Rom you had before the official upgrade you have now, then use any file explorer and open the build.prop file that is found in the system folder.
Find the line that starts ro.version.customisation. And then had 8 numbers after it, tell me what those numbers are and I can point you in the right direction
Anyway, you can't use Emma to flash that, you must use flash tool
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