[Q] Downgrable from V28E to V20G - LG Optimus 2x

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

Related

[Q] flashing basebands

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/

[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

please help bricked my phone

please help me i have flashed using convert kdz and flashed by SFT.. my phone now not working.. no power any thing... what i do now ???:crying:
remove the battery, enter in s/w update mode and reflash whith SFT but with a good rom.
=> http://forum.xda-developers.com/showthread.php?t=1448803
rom V20O => http://forum.xda-developers.com/showpost.php?p=23788913&postcount=170
But it's not connecting to s/w update mode. No power any more... Pc not detect my phone...
I tried everything.. removed battery and connect phone but nothing happend, just like dead phone.
Sent from my LT18i using Tapatalk 2
jimmysmart83 said:
But it's not connecting to s/w update mode. No power any more... Pc not detect my phone...
I tried everything.. removed battery and connect phone but nothing happend, just like dead phone.
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
If you really did everything and in a right way, you can start to build a new house because you have the first brick already.But...it's not so easy to brick a phone with SFT.If you really followed the rules for Smart Flash Tool it's practically impossible.I know that people tend to panic in such situations and do something wrong in a rush.Well, take the battery, sim card and memory card out of the phone; hold the volume up button and then plug your usb cable( sure that cable and contacts are okay ), which is pluged in your computer with SFT opened; sometimes the phone enters in s/w mode in a second but sometimes needs five.Then flash a GB rom or anything you want.If nothing will happen is very much possible that you have a hardware problem( something similar happened to me when my motherboard was fu.ked and this is quite common with P970 ).Good luck.:fingers-crossed:
P.S. Are you talking about SE arc or LGE P970?
jimmysmart83 said:
But it's not connecting to s/w update mode. No power any more... Pc not detect my phone...
I tried everything.. removed battery and connect phone but nothing happend, just like dead phone.
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
Did you maybe flash a wrong ROM? Double check please. Whats the name of your kdz file? Where did you get it from? Did you interupt the update procedure? Or did it get interrupted?
Sent from my LG-P970 using xda app-developers app
Edvin73 said:
If you really did everything and in a right way, you can start to build a new house because you have the first brick already.But...it's not so easy to brick a phone with SFT.If you really followed the rules for Smart Flash Tool it's practically impossible.I know that people tend to panic in such situations and do something wrong in a rush.Well, take the battery, sim card and memory card out of the phone; hold the volume up button and then plug your usb cable( sure that cable and contacts are okay ), which is pluged in your computer with SFT opened; sometimes the phone enters in s/w mode in a second but sometimes needs five.Then flash a GB rom or anything you want.If nothing will happen is very much possible that you have a hardware problem( something similar happened to me when my motherboard was fu.ked and this is quite common with P970 ).Good luck.:fingers-crossed:
P.S. Are you talking about SE arc or LGE P970?
Click to expand...
Click to collapse
maybe something wrong i did but sft tool completed flash my phone i think my kdz file was wrong maybe... i give it to mobile repair center today and he also said that phone is totally dead not detecting to pc, now he will check motherboard... tomorrow i will know...
i am talking about LG P970
anyway i have SE Arc S also.
N00BY0815 said:
Did you maybe flash a wrong ROM? Double check please. Whats the name of your kdz file? Where did you get it from? Did you interupt the update procedure? Or did it get interrupted?
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
first time i was flashed stock ROM V10A which downloaded from here But my phone bootloop its only showing LG logo and touch buttons flashing only, so i searched in xda to try another method and i got V10G_00.kdz file from india region and got [TOOL] LGExtract 0.2.1 do it all process i think i lost my recovery or maybe motherboard problem....
anyway if any suggestions please reply...
jimmysmart83 said:
first time i was flashed stock ROM V10A which downloaded from here But my phone bootloop its only showing LG logo and touch buttons flashing only, so i searched in xda to try another method and i got V10G_00.kdz file from india region and got [TOOL] LGExtract 0.2.1 do it all process i think i lost my recovery or maybe motherboard problem....
anyway if any suggestions please reply...
Click to expand...
Click to collapse
Are you sure you used the v10G for P970? Cause otherwise only and interruption could cause such a hard failure...
N00BY0815 said:
Are you sure you used the v10G for P970? Cause otherwise only and interruption could cause such a hard failure...
Click to expand...
Click to collapse
yes m sure.
jimmysmart83 said:
first time i was flashed stock ROM V10A which downloaded from here But my phone bootloop its only showing LG logo and touch buttons flashing only, so i searched in xda to try another method and i got V10G_00.kdz file from india region and got [TOOL] LGExtract 0.2.1 do it all process i think i lost my recovery or maybe motherboard problem....
anyway if any suggestions please reply...
Click to expand...
Click to collapse
Well, the phone goes in bootloop when you flash patched files with recovery and then forget to flash Superuser.You must not boot your phone when it enters in recovery after flashing with SFT but flash Superuser from your SD card first.I think that this maybe was your first problem.But LG logo and flashing leds are also a very possible sign for a faulty motherboard.The same happened to me with one week old P970 with official firmware and not rooted, when I tried just to reboot the thing.And if your phone died after this, you can be 99.9% sure that you have a fu.ked motherboard.

(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.

[Q] [su-880 Help] Phone reboot into LG logo and stuck..

I'm using LG Optimus EX Su880.
Sorry when creat this thread here because i'm not found any thread or box support su880
Please help me about this problem;
I try installing recovery on my phone :
----flash 2.3 KDZ via NVFlash-----> Root by EXroot -----> install exrecovery apk via file manager
Then i open recovery app & select [ Reboot recovery ], Phone reboot into LG logo and stuck... Phone only can connect APX mode. cannot S/W mode.
I use P990 All In One Toolbox to Extract KDZ file. I have got img files ( bootloader.img, recovery.img...)
I use NVflash to flash img files but nothing is hapen. Cannot open S/W mode
I think Su880 & 990 is same. Hope you help me save my phone. Thank you very much !
* Sorry for my bad English
^^
have U ever try hard reset? once work for me before..:good:
i try hard reset = press volume + volume - and power at same time . Hold 10s but nothing ís happend...
http://forum.xda-developers.com/showpost.php?p=41401314&postcount=3
Try this one. It's for su880. Report me back if it's working or not working
bitdomo said:
http://forum.xda-developers.com/showpost.php?p=41401314&postcount=3
Try this one. It's for su880. Report me back if it's working or not working
Click to expand...
Click to collapse
IT working perfect. But my phone cannot connect S/W mode until i flash recovery with your command
check my thread if u havent resolved it yet
111
bitdomo said:
http://forum.xda-developers.com/showpost.php?p=41401314&postcount=3
Try this one. It's for su880. Report me back if it's working or not working
Click to expand...
Click to collapse
Thanks working

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