[Q] flashing basebands - LG Optimus 2x

hello all, I want to know how to flash basebands while using cm7 i followed the steps in a thread but smartflash tool is unable to detect my phone . do i have to go back to stock rom first ????
i have some searching but i couldnt find the answer .
thank you

Nope, no need to go back to stock, just boot into S/W update and go.

Rusty! said:
Nope, no need to go back to stock, just boot into S/W update and go.
Click to expand...
Click to collapse
How to do it ??
Sent from my Optimus 2X using Tapatalk

Remove battery, hold vol- and plug in your USB cable.

here is m8 the link for flash baseband
Code:
http://android.modaco.com/topic/335494-12-aug-smartflash-stock-baseband-release-103521-20110725/

Related

[Q] Bricked After installing CM10

Hi All,
I'm in trouble with my P990.
i was using offical cm10 nightlies for a while and i updated new official cm10 nightlies. After update phone opened and 5 minutes later screen frozen. i removed battery and put it again. But phone not opened again.
I tried NVFlash but NVflash stuck on "waiting for bootloader to initialize" message.
How can i handle this situation.?
Thank you in advance for your help.
yildirimkm said:
Hi All,
I'm in trouble with my P990.
i was using offical cm10 nightlies for a while and i updated new official cm10 nightlies. After update phone opened and 5 minutes later screen frozen. i removed battery and put it again. But phone not opened again.
I tried NVFlash but NVflash stuck on "waiting for bootloader to initialize" message.
How can i handle this situation.?
Thank you in advance for your help.
Click to expand...
Click to collapse
Maybe try to flash any rom with SmartFlash
1.Take out battery
2.replace battery
3.hold Vol- (volume down button) AND power button together until you see the recovery menu. then scroll to Cm updater file and reflash -or- clockwork mod file and flash from backup.
No way!!
When i tried Smartflash pc not found com ports. so i cant flash with this way.
also i tried (JAZZMAN's advice) power and vol- to enter CWM menu but i cant see any thing. (my phone not open)
yildirimkm said:
When i tried Smartflash pc not found com ports. so i cant flash with this way.
also i tried (JAZZMAN's advice) power and vol- to enter CWM menu but i cant see any thing. (my phone not open)
Click to expand...
Click to collapse
How phone must show bootloader or you have installed already CWM it must boot into CWM, if it doesn't show your phone to the service .
yildirimkm said:
When i tried Smartflash pc not found com ports. so i cant flash with this way.
also i tried (JAZZMAN's advice) power and vol- to enter CWM menu but i cant see any thing. (my phone not open)
Click to expand...
Click to collapse
checkfor Rusty's thread for recovery
check for Homero's thread to unbrick with a clean and stock ROM....
LG is 99.999999999% unbrickable AFAIK
Maybe this will work
http://forum.xda-developers.com/showthread.php?t=1975274
Sent from my LG-P990 using xda app-developers app
Service
Thanks for your help.
I couldnt fix my phone. I sent to service. i hope they can fix

[Q] Downgrable from V28E to V20G

I'm using the V28E ICS leak stockrom and i want to downgrable to v20G because there was a little bit problem with this leak ICS (it stucked when i run some apps). Therefore i used smartflash and offline but both of them didn't work. I think it is bricked and i start it up but it run normally. Some one can show me how to downgrable it?
Thanks for your attention. My English so bad
brayannguyen said:
I'm using the V28E ICS leak stockrom and i want to downgrable to v20G because there was a little bit problem with this leak ICS (it stucked when i run some apps). Therefore i used smartflash and offline but both of them didn't work. I think it is bricked and i start it up but it run normally. Some one can show me how to downgrable it?
Thanks for your attention. My English so bad
Click to expand...
Click to collapse
Hi,
I did this too, I had to do it file by file. So first flash the fls (CP baseband file). After that the phone will turn off. Start it in update mode and then install the AP (rom) file. It worked for me. I used smartflash.
I don't know why, but the phone turned off after CP flash and it didn't start again, which lead to timeout error.
L.
how
lipisak said:
Hi,
I did this too, I had to do it file by file. So first flash the fls (CP baseband file). After that the phone will turn off. Start it in update mode and then install the AP (rom) file. It worked for me. I used smartflash.
I don't know why, but the phone turned off after CP flash and it didn't start again, which lead to timeout error.
L.
Click to expand...
Click to collapse
Do i have to unplug battery and enter SW Update Mode (Hold volume down and plus usb cable) for this way?
brayannguyen said:
Do i have to unplug battery and enter SW Update Mode (Hold volume down and plus usb cable) for this way?
Click to expand...
Click to collapse
Yes sir
lipisak said:
Yes sir
Click to expand...
Click to collapse
That's very kind of you! Thanks you :good:
Can somebody transform V28Gfrom kdz file to smartflash file? I cant whith smarflash tool!
Thanks!
digital1967 said:
Can somebody transform V28Gfrom kdz file to smartflash file? I cant whith smarflash tool!
Thanks!
Click to expand...
Click to collapse
You can find the way in Optimus 2x Android Development and topic: [NEW ICS LEAK NOV 12] [ONLINE-TOOL] P990-Leaker: Realtime P990 ICS ROM finder
Dear lipisak!!!
Now my phone can't enter the SW update mode. When i hold vol - and plug in usb cable it just flashed a light. I waited but nothing happen. I think it's about my computer then i remove driver and reinstall that but that still be the same. What can i do now?
brayannguyen said:
You can find the way in Optimus 2x Android Development and topic: [NEW ICS LEAK NOV 12] [ONLINE-TOOL] P990-Leaker: Realtime P990 ICS ROM finder
Dear lipisak!!!
Now my phone can't enter the SW update mode. When i hold vol - and plug in usb cable it just flashed a light. I waited but nothing happen. I think it's about my computer then i remove driver and reinstall that but that still be the same. What can i do now?
Click to expand...
Click to collapse
why dont you try this?
BACK TO ICS ROM
or this,
BACK TO GINGERBREAD
hope it helps
SREEPRAJAY said:
why dont you try this?
BACK TO ICS ROM
or this,
BACK TO GINGERBREAD
hope it helps
Click to expand...
Click to collapse
Yes it's great and i want to. But how can i try it while i can't enter the SE Update mode? The important is how to enter Update mode although i did it in the right way (Hold Vol - and plug usb cable). It's just flash the light then nothing happen.....
Oh my phone

(Q) downgrade from v30 to v20

Is it possible to make a downgrade to my rom só i can restart to use new cm nightlies
Greetings
Sent from my LG-P990 using Tapatalk 2
I Think i found the awnser, i Will use smartflash (mainly this was my doubt. I didn't Know if This would damage the Phone)
Sent from my LG-P990 using Tapatalk 2
rolling_stone said:
I Think i found the awnser, i Will use smartflash (mainly this was my doubt. I didn't Know if This would damage the Phone)
Sent from my LG-P990 using Tapatalk 2
Click to expand...
Click to collapse
I dont think you can just downgrade with smartflash tools. V30 has a locked ICS bootloader if im correct and apparently my O2X bootlooped when i did that. Now i stuck and even NVFLASH fails
i downgraded my v28g to v20s with smartflash
Thats the answer....
Use Nvflash i downgraded many times from v28a,g,v30a down to v20 or cyanogen mod Its the savest way.
Im form germany... only found the german forum but the zips of nvflash work very well use it:
http://www.handy-faq.de/forum/lg_op...timus_speed_p990_original_rom_2x_flashen.html
DarkFantasy6 said:
Thats the answer....
Use Nvflash i downgraded many times from v28a,g,v30a down to v20 or cyanogen mod Its the savest way.
Im form germany... only found the german forum but the zips of nvflash work very well use it:
http://www.handy-faq.de/forum/lg_op...timus_speed_p990_original_rom_2x_flashen.html
Click to expand...
Click to collapse
I think it might be time for me to throw away my P990 because im not sure if the VOL UP button actually works or is it the PC problem.
---------- Post added at 07:24 PM ---------- Previous post was at 07:05 PM ----------
max21ns said:
i downgraded my v28g to v20s with smartflash
Click to expand...
Click to collapse
Anyway although I doubt smartflash could work for my case, I decided to give it try and flash V20B rom (starhub) via the .fls and .bin files method. It gave me an error when it was about to partition the "7 partitions". So i exited and unplug my phone as the SW upgrade screen on my phone turned to a blank screen. I wanted to try again and plug back holding the VOL DOWN button to enter SW mode. I heard the Windows sound notification (when a device is plugged or unplugged) as i do so but the screen was still blank. So i checked the device manager screen and saw that i entered the NVFLASH recovery mode.
Im confused as to how it would work now but anyway i was grateful to your post and that made me give smartflash a try still. :laugh::good:
the easiest way in your situation is using this [TOOL] Full Brick Repair (Clean & Easy)
It's nvflashable and already includes a CM10 nightly. Boot it up and upgrade CM10 with the built in upgrader. That's what I did yesterday. Then boot into recovery and flash gapps.
agent6 said:
Anyway although I doubt smartflash could work for my case, I decided to give it try and flash V20B rom (starhub) via the .fls and .bin files method. It gave me an error when it was about to partition the "7 partitions". So i exited and unplug my phone as the SW upgrade screen on my phone turned to a blank screen. I wanted to try again and plug back holding the VOL DOWN button to enter SW mode. I heard the Windows sound notification (when a device is plugged or unplugged) as i do so but the screen was still blank. So i checked the device manager screen and saw that i entered the NVFLASH recovery mode.
Im confused as to how it would work now but anyway i was grateful to your post and that made me give smartflash a try still. :laugh::good:
Click to expand...
Click to collapse
I had the same problem, and I leave the battery in the phone and it worked, try it
well
after reading some information, i solved my question using this thread
http://forum.xda-developers.com/showthread.php?t=1715272
thank you all guys that tried to help me.

[SOLVED][ERROR] Device stuck on boot! Error: Boot Image Signature

Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!
I am on V20a (ESA-XXX) and have successfully rooted my phone.
I tried installing CWM using this method..
http://forum.xda-developers.com/showthread.php?t=2180138
I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/showthread.php?p=39918805&highlight=unsecure#post39918805
After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..
[LG-Security] Error: Boot Image Signature!
The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone.. :crying:
I read a similar prob, but no solution found..
http://forum.xda-developers.com/showthread.php?t=2223697
PLEASE HELP!!
SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )
Dude, reflashing your phone should work. As long as SW mode is still accessible, your phone isn't dead yet. Follow the instructions on this post http://forum.xda-developers.com/showthread.php?p=35971349 Be freaking sure all necessary drivers are properly installed.
Or you can put your phone in recovery mode (power + vol +) and reinstall the stock rom using recovery LG tools providing your Internet connection is fast and stable
Sent from my LG-P880 using Tapatalk 2
hey dude, i have flashed 7 times exactly since this morning only. and i have gotten that error 3 times of those 7. so it should not be a problem
Thanks!
After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)
Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!
TechnoBraker said:
After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)
Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!
Click to expand...
Click to collapse
You don't read a lot, right?...
If I had 100€ for each user that had that same problem...
(thinking about 1€, hummm?... of course not, 100's better)
TechnoBraker said:
Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!
I am on V20a (ESA-XXX) and have successfully rooted my phone.
I tried installing CWM using this method..
http://forum.xda-developers.com/showthread.php?t=2180138
I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/showthread.php?p=39918805&highlight=unsecure#post39918805
After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..
[LG-Security] Error: Boot Image Signature!
The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone.. :crying:
I read a similar prob, but no solution found..
http://forum.xda-developers.com/showthread.php?t=2223697
PLEASE HELP!!
SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )
Click to expand...
Click to collapse
But WHY AND HOW did it happen? have you flashed a custom rom now without errors?
GeBoe said:
But WHY AND HOW did it happen? have you flashed a custom rom now without errors?
Click to expand...
Click to collapse
You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:
su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved
Sent from my rooted P880
I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
askinkoc said:
I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
Click to expand...
Click to collapse
And once again:
flashing stock is not at all dangerous. it will not brick your device or something else.
Sometimes you even have to re-stock your phone.
Stock is safe!
askinkoc said:
I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
Click to expand...
Click to collapse
haha, flashing the stock rom back can never be a problem..
that is the only rom which inherently supposed to be problem-free!
@non4 said:
You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:
su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved
Sent from my rooted P880
Click to expand...
Click to collapse
just tried this ^^^ worked thanks
Had the exact same problem as TechnoBraker however if you held the power button as the phone turned to "power save" and you timed it perfectly it would start normally and as long as i didnt try to go into recovery mode it was fine
Hello. PLEASE, can anyone help me, I have a LG 4x and I've tried to flash CWM image from here http://forum.xda-developers.com/showthread.php?t=2298420 but I cannot entry after that in Software Update ( Volume - and Power button) and not even with (Volume + Home and Power Button). I get this error [LGE _SECURITY]error: boot image signature
[LGE _SECURITY]5 seconds after power is turned off for power saving
My phone start very well, I can talk from him but I can not make Factory Reset and flash back the stock rom.
Sorry for my english and I hope someone can help me!
Thank you!
alexxutzu said:
Hello. PLEASE, can anyone help me, I have a LG 4x and I've tried to flash CWM image from here http://forum.xda-developers.com/showthread.php?t=2298420 but I cannot entry after that in Software Update ( Volume - and Power button) and not even with (Volume + Home and Power Button). I get this error [LGE _SECURITY]error: boot image signature
[LGE _SECURITY]5 seconds after power is turned off for power saving
My phone start very well, I can talk from him but I can not make Factory Reset and flash back the stock rom.
Sorry for my english and I hope someone can help me!
Thank you!
Click to expand...
Click to collapse
you installed cwm without unlocking bootloader. re-flash 20a/20b (jellybean 4.1.2) kdz, then unlock your bootloader, then install any custom recovery you want/need
Have i go bak to JB anytime?
Flying_Bear said:
you installed cwm without unlocking bootloader. re-flash 20a/20b (jellybean 4.1.2) kdz, then unlock your bootloader, then install any custom recovery you want/need
Click to expand...
Click to collapse
HEy
I have a question:
Have I flash to JB back anyway or can I only Unlock my BL and then it will work?
Sry my English is very bad
mivoe99 said:
HEy
I have a question:
Have I flash to JB back anyway or can I only Unlock my BL and then it will work?
Sry my English is very bad
Click to expand...
Click to collapse
Bootloader unlocking is only available if you're on JB. If your boot image is faulty you need to revert back to official JB.
Sent from my LG-P880 using XDA Premium 4 mobile app
Ok, but I haven't installed a cousom ROM
Omario-242 said:
Bootloader unlocking is only available if you're on JB. If your boot image is faulty you need to revert back to official JB.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I havent' installed a cusotm ROM yet. I have only installed CWM with ROM Manager, but i have already tried to delete the CWM I want to flash it manual.
My ROM is the normal LG P880 ROM JB.
How or have I go back to the normal JB?
Sry for my English I'm german
mivoe99 said:
I havent' installed a cusotm ROM yet. I have only installed CWM with ROM Manager, but i have already tried to delete the CWM I want to flash it manual.
My ROM is the normal LG P880 ROM JB.
How or have I go back to the normal JB?
Sry for my English I'm german
Click to expand...
Click to collapse
German here too
So if I understood you right, you tried to install CWM without unlocking your boot loader? So now you got a boot image error? I'd suggest to try LG Mobile Support Tool and flash V20A/V20B and then unlock Boot loader. Even if you're on "official JB" as of now, installing CWM without unlocked bootloader screwed your boot image and there's no way to do anything without flashing back a kdz.
Sent from my LG-P880 using XDA Premium 4 mobile app
LG Mobil Support Tool doesn't work
Omario-242 said:
German here too
So if I understood you right, you tried to install CWM without unlocking your boot loader? So now you got a boot image error? I'd suggest to try LG Mobile Support Tool and flash V20A/V20B and then unlock Boot loader. Even if you're on "official JB" as of now, installing CWM without unlocked bootloader screwed your boot image and there's no way to do anything without flashing back a kdz.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hey,
I have tried to do the Update to the Firmware by LG Mobile Support Tool but there is a Error every try. I have tried it about ten times but the Update fails every time. What can I do now? :/
There is no Error Code or something.
Can help a factory reset there?
Or should i falsh the Original Recovery with the All-in-One toolkit?
mivoe99 said:
Hey,
I have tried to do the Update to the Firmware by LG Mobile Support Tool but there is a Error every try. I have tried it about ten times but the Update fails every time. What can I do now? :/
There is no Error Code or something.
Can help a factory reset there?
Or should i falsh the Original Recovery with the All-in-One toolkit?
Click to expand...
Click to collapse
Could be due to wrong drivers. Reinstall them and try again.
Sent from my LG-P880 using XDA Premium 4 mobile app
Reinstalled Drivers
Omario-242 said:
Could be due to wrong drivers. Reinstall them and try again.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hey,
I have reinstalled the drivers for my device, but the installation failed again.
What can I do else? :/

[Q] Death phone

Hello. I tried to flash original firmware from cyanogenmod 10.2. I use this toturial: http://forum.xda-developers.com/showthread.php?t=2069723
Phone was bootloop. Now i canť power my LG... screen remains black, no signs on as if it was not battery. I apologize for the mistakes I´am czech (13)
Please help me..
SXP88 said:
Hello. I tried to flash original firmware from cyanogenmod 10.2. I use this toturial: http://forum.xda-developers.com/showthread.php?t=2069723
Phone was bootloop. Now i canť power my LG... screen remains black, no signs on as if it was not battery. I apologize for the mistakes I´am czech (13)
Please help me..
Click to expand...
Click to collapse
Did you unlock your bootloader? If not you can probably use your 4X as a brick.
And the tutorial you followed is not for a custom rom (zip files, flash through cwm) but for stock LG ROM (kdz files).
EDIT: Or did you try to go back to stock?
If so, you should try to connect in S/W Mode and manually flash a kdz. Search for it.
Sent from my LG-P880
Omario-242 said:
Did you unlock your bootloader? If not you can probably use your 4X as a brick.
And the tutorial you followed is not for a custom rom (zip files, flash through cwm) but for stock LG ROM (kdz files).
EDIT: Or did you try to go back to stock?
If so, you should try to connect in S/W Mode and manually flash a kdz. Search for it.
Sent from my LG-P880
Click to expand...
Click to collapse
Yes i´m have got unlock BL.
From this toturial i flash original rom V10H. The phone was bootloop, after a week of lying flat on the table, it was completely dead .. nothing can or s / w upgrade, I do not
SXP88 said:
Yes i´m have got unlock BL.
From this toturial i flash original rom V10H. The phone was bootloop, after a week of lying flat on the table, it was completely dead .. nothing can or s / w upgrade, I do not
Click to expand...
Click to collapse
I assume it's a driver problem. Try to reinstall all drivers on your PC and try again.
Sent from my LG-P880
Omario-242 said:
I assume it's a driver problem. Try to reinstall all drivers on your PC and try again.
Sent from my LG-P880
Click to expand...
Click to collapse
as when the phone is not connected to a PC or charging. One user on the Czech forum say it is about NAND memory corruptions> Service

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