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HELP: Need to go back to Froyo!

Hi,
I've upgraded to Ginger, and I had no big problems at all, but unfortunately I MUST downgrade to Froyo...
I did a backup of my Froyo version v10c with Clockworkmode Recovery.
Can you advice me which is the right procedure, please?:
a) Should I flash a Froyo kdz rom first, and AFTER THAT flash my Recovery backup? In this case, my version of Froyo was v10c but can't find that version here nor in the web... What should I choose: v10B or v10D (in order to flash my backup made in v10c after)?
b) Or can I flash my v10c Recovery backup directly over Ginger?
Thanks a lot,

mrbandwidth said:
Hi,
I've upgraded to Ginger, and I had no big problems at all, but unfortunately I MUST go back to Froyo...
I did a backup of my Froyo version v10c with Clockworkmode Recovery.
Can you advice me which is the right procedure, please?:
a) Should I flash a Froyo kdz rom first, and AFTER THAT flash my Recovery backup? In this case, my version of Froyo was v10c but can't find that version here nor in the web... What should I choose: v10B or v10D (in order to flash my backup made in v10c after)?
b) Or can I flash my v10c Recovery backup directly over Ginger?
Thanks a lot,
Click to expand...
Click to collapse
Can't flash directly over gb or you need to install froyo Baseband also. Easiest risk free way is to flash a froyo kdz (any version will do) and then restore your backup. It doesn't matter which version you flash cause it reverts to your backed up v10c when you restore...

Thanks, but the LG program UpTestEX_mod2_marwin.exe (executed as admin) crashes when it begins to flash the .kdz (the phone is still "Gingered", and fortunately working).
I've tried to reboot my PC (Win7 64 bits), but does not help.
Could be helpful if I wipe all data before flashing? Or Unroot it? Any other ideas to avoid crashes?

My program also crashed.. i've changed the computer and it worked, you should also try on other computer.

No, best course is to flash ONLY baseband, then restore backup. I've swapped to GB to p920 froyo with my p925 kernel (thrillz) that way. (Needed 850 3g band, no gb baseband of p920h or p925 yet.

Well, finally the LG updater tool worked and let me flash v10D (FROYO)...
No problem in the flashing process.
BUT, after that, I couldn't go over LG logo... A potential 3D-BRICK
Then I tried this (thanks to davidn70mo):
0-put your phone in DEBUG MODE -> menu/settings/application/development/USB debugging,
1-push and Hold Power to power off the phone,
2-battery out, battery in (AND POWER OFF!!!! ),
3-still with POWER OFF, push and hold button Volume Up,
4-plug the device to the USB cable to PC (still holding ONLY the button Vol UP),
5-wait until you hear Windows sounds indicating it recognizes the device, then you can release the button Vol UP,
6-follow the instructions starting from section 2 c) here -> http://forum.xda-developers.com/showthread.php?t=1287236
Flashed v10D again, v10B, v10K -> no success
Tried with v21A Ginger -> worked, and nothing has been deleted!
Is ironic: I *really* wanted this update and now I'm stucked with Ginger again!
So, I presume the problem was I didn't wiped memory before flash v10D. Can anybody tell me what is the exact process to wipe data, please?:
-Vol UP + 3D button + Power, in that order or what?
-Do I need to Root and/or install Clockworkmod Recovery before to wipe?
Thanks a lot,

Vol DOWN + 3D + POWER
And then do all the wipes on the recovery menu. Phone should return to normal operation.
I did it myself after flashing v21a.

Thanks everybody,
But what wipes should I do in the LG Recovery (Vol DOWN + 3D + POWER) in order to flash a FROYO kdz after?
-wipe data/factory reset
-wipe cache partition
-wipe cache partition and package recovery
-wipe nv dynamic partition
Thanks

Ok, couldn't wait, so I've done all 4 wipes...
Flashed v10b with the same procedure I describe above -> no problems flashing
Booting and...Works! -> I'm at FROYO (2.2.2) again!

Well, final procedure, I write this to help other people with the same problem:
HOW TO DOWNGRADE FROM GINGERBREAD TO FROYO (Disclaimer: I'm not responsible if you harm your phone doing this):
(Win7 64 bits, phone rooted)
CONTENT OF SDCARD(internal) HAS *NOT* BEEN ERASED USING THIS PROCEDURE
A) WIPE-ALL-DATA PROCEDURE (it's necessary or you'll become stucked in LG logo):
1-put your phone in DEBUG MODE -> menu/settings/application/development/USB debugging,
2-push and hold Power Button to power off the phone,
3-push and hold: 3D + Vol DOWN + Power button
4-when the LG logo appears -> Release Power button, still holding 3D + Vol DOWN
5-Release all buttons when LG Recovery Console appears with these options:
-reboot system now
-wipe data/factory reset
-wipe cache partition
-wipe cache partition and package recovery
-wipe nv dynamic partition
CONSOLE USAGE: Use Vol UP button to go UP, Vol DOWN to go DOWN, and MENU button to accept
6-do all the 4 wipes in the order they are,
7-finally select option Reboot system now,
8-push and hold Power Button to power off the phone,
B) FLASH A FROYO ROM: (thanks to davidn70mo)
1-battery out, battery in (DON'T POWER ON!!! ),
2-still with POWER OFF, push and hold button Volume Up,
3-plug the device to the USB cable to PC (still holding ONLY the button Vol UP),
4-wait until you hear Windows sounds indicating it recognizes the device, then you can release the button Vol UP,
5-follow the instructions starting from section 2 c) here ("Turn Windows Enabler.exe and...") -> http://forum.xda-developers.com/showthread.php?t=1287236
Hope it helps somebody!

Hello mrbandwidtgh, i followed your procedure but no success. When i got to
http://forum.xda-developers.com/show....php?t=1287236 when it was supposed to pop-up the "Select Country & Language" window it comes a message like downloading software and it does nothing.
I´m using xp and acuras gb 21 a+b rom.
I want to go back to Froyo because of the ghost calls.
Please help.
Thanks

You now have to follow the local proxy server guide as LG is preventing forced cross upgrading now.
My Tab makes phone calls yo! (GT-P6800)

back to froyo successfully
im back to original froyo in my p500 ,do all steps in this thread( http://forum.xda-developers.com/showthread.php?t=875881&page=8)
but,remove the sd card before doing any thing,when finished flashing , remove the battery ,get ur sd card back in the phone and reboot,u r done
this was my way back to froyo.
i hope it will be helpfull

[Q] Completely bricked LG Optimus 3d (p920)

The other day i tried to install a rom using the clockworkmod and it said the install was successful but when i rebooted the phone it got stuck at the lg logo and never maskes it to the boot animation no matter what i do it always stays on the logo i have tried all the different button combinations and nothing changes. i tried using the lg phone tool and i hit recovery phone and typed all the information in and it confirms my s/n number and model but not my imei number can anyone help me restore it,i have a saved backup form clockwork mod on my external sd card so i can restore all my files.

MANBEARPIG69 said:
The other day i tried to install a rom using the clockworkmod and it said the install was successful but when i rebooted the phone it got stuck at the lg logo and never maskes it to the boot animation no matter what i do it always stays on the logo i have tried all the different button combinations and nothing changes. i tried using the lg phone tool and i hit recovery phone and typed all the information in and it confirms my s/n number and model but not my imei number can anyone help me restore it,i have a saved backup form clockwork mod on my external sd card so i can restore all my files.
Click to expand...
Click to collapse
clockworkmod can't bricked your phone easily
try not to flash zip but kdz!
http://forum.xda-developers.com/showthread.php?t=1287236
http://forum.xda-developers.com/showthread.php?t=1473781
read both threads above may help u.

?
the first link requires my phone to work i cant do anything at all, whenever i turn on my phone normally by holding power button it just goes to the lg logo no boot animation and freezes, i cant do anything on it as for the second link so for being such a noob but, i have no clue what that is doing, I need some way to reinstall the lg software although, i tried this method: http://forum.xda-developers.com/showthread.php?t=1244490 but it just starts installing the software for about a second then says it cant install please someone help me is it possible for lg to fix this??

1 - Do you have recovery function working? Power phone with Vol Down Button and release when apears LG logo, if you have recovery working you should be fine.
2 - Download any Zipped ROM(There's alot and good here in the dev are) and put it on your external SD card.
In recovery install zip from the SD card.
Good luck.

thanks
Overture said:
1 - Do you have recovery function working? Power phone with Vol Down Button and release when apears LG logo, if you have recovery working you should be fine.
2 - Download any Zipped ROM(There's alot and good here in the dev are) and put it on your external SD card.
In recovery install zip from the SD card.
Good luck.
Click to expand...
Click to collapse
WOW i swear i had tried this ages ago like a hundred times but i must have missed it i am now in clockwork mod recovery and recorvering one of my backups thanks dude
cant believe i missed the most simple thing.

so you made a recovery backup and forgot it exists?
╮(╯_╰)╭

I Think he tried to enter recovery without sucess and now he could.

Hi! It happened the same to me, I can't get further than the LG boot screen. No matter what combinations I try I always get stucked there.
I tried the VOL - + POWER combination (releasing both when LG logo appers) but it didn't work
All I did was:
1- Installed ROM Manager and ClockworkMod Recovery
2- Gave ClockworkMod Recover root permissions
3- Pressed RESTART from the Rom Manager app
4- PROBLEM: I got stucked at the boot screen
Please help me

AW: [Q] Completely bricked LG Optimus 3d (p920)
Had the same problem, i flashed ported ics from xbsa with lg flashtool, but you can flash gb kdz file this works for sure too. Than you can start new, but next time when you flash recovery, flash it with bootloader its the best way to flash recovery.
Sent from my LG-SU760 using xda app-developers app

Itaka06 said:
Had the same problem, i flashed ported ics from xbsa with lg flashtool, but you can flash gb kdz file this works for sure too. Than you can start new, but next time when you flash recovery, flash it with bootloader its the best way to flash recovery.
Sent from my LG-SU760 using xda app-developers app
Click to expand...
Click to collapse
so.. what do I do now?

AW: [Q] Completely bricked LG Optimus 3d (p920)
Or you flash ported ocs with flashtool, or you flash back to gb with kdz...
Sent from my LG-SU760 using xda app-developers app

Itaka06 said:
Or you flash ported ocs with flashtool, or you flash back to gb with kdz...
Sent from my LG-SU760 using xda app-developers app
Click to expand...
Click to collapse
what I wanted to do was to install CM10. I was about to do that but my phone got stucked at the LG logo when I touched Restart.

AW: [Q] Completely bricked LG Optimus 3d (p920)
Use this tutorial and flash kdz file, you will go back to gb and stock firmware, after that you can start new..
http://forum.xda-developers.com/showthread.php?t=1540163
Ah before you try this, have you flashed bootloader by wkpark?
You find it here
http://forum.xda-developers.com/showthread.php?t=1971014
First method works for sure second i dont know...
Sent from my LG-SU760 using xda app-developers app

Itaka06 said:
Use this tutorial and flash kdz file, you will go back to gb and stock firmware, after that you can start new..
http://forum.xda-developers.com/showthread.php?t=1540163
Ah before you try this, have you flashed bootloader by wkpark?
You find it here
http://forum.xda-developers.com/showthread.php?t=1971014
First method works for sure second i dont know...
Sent from my LG-SU760 using xda app-developers app
Click to expand...
Click to collapse
I haven't use any flashing software yet, all I did was installing ROM manager and Clockworkmod, then Reboot, and it got stucked there

santipuig said:
I haven't use any flashing software yet, all I did was installing ROM manager and Clockworkmod, then Reboot, and it got stucked there
Click to expand...
Click to collapse
if you can enter recovery ,, then
wipe data/factory reset
wipe cache
advanced -- wipe dalvik cache
if you can't enter recovery ,, then
http://forum.xda-developers.com/showthread.php?t=1629307
Good Luck

i faced a same problem..
i flashed a recovery thru a Rom Manager & restart the phone then my phone freeze on startup lg logo..
plz..HELP

Yash Doctor said:
i faced a same problem..
i flashed a recovery thru a Rom Manager & restart the phone then my phone freeze on startup lg logo..
plz..HELP
Click to expand...
Click to collapse
You have just to flash back all the system with lg flash tool follow the guide:
http://forum.xda-developers.com/showthread.php?t=1942836
It will works i faced the same problem different times

Easy unbrick
I have tried clockworkmod to do a recovery/backup 3 times and ended up with a bricked phone. I have tried various methods in the guides here and none have been successful, as the difficult part is getting W7 and W8 to install omap drivers. I have successfully returned the phone to 2.3.5 every time by this method:
Download " LGMobile support tool " from LG. If you have LG PC suite it will download the software and install it.
Connect phone to PC with usb.
From one of the dropdown menus select recover phone. put in your phone model and imei number. The recovery tool downloads 345mb of data, reboots the phone and you have now got your bootloader and phone is reset to factory. I removed sim card and sd card before connecting.

[Q] help!!! bricked my p500h installing recovery

i have the p500h (koodo). basically, i bricked my phone following this guide: [HOW-TO] Simplified Root + Recovery + Custom ROM
i turned on usb debugging, then installed gingerbreak 1.20 , then it rebooted and i installed the VM670NH_recovery.img using the flash recovery gui app. then i turned off the phone and tried to boot into recovery by holding down teh button sequence, i saw the LG logo, but then when i let go of the buttons it simply turns off. if i try to boot normally without going into recovery i just see the LG logo forever. any suggestions?
i have tried to fix it with lgdmp in emergency mode after i came across this post but my phone doesnt show up when i go to select port

nodyarg said:
i have the p500h (koodo). basically, i bricked my phone following this guide: [HOW-TO] Simplified Root + Recovery + Custom ROM
i turned on usb debugging, then installed gingerbreak 1.20 , then it rebooted and i installed the VM670NH_recovery.img using the flash recovery gui app. then i turned off the phone and tried to boot into recovery by holding down teh button sequence, i saw the LG logo, but then when i let go of the buttons it simply turns off. if i try to boot normally without going into recovery i just see the LG logo forever. any suggestions?
Click to expand...
Click to collapse
Recovery.img that you flashed is for the optimus v...You have to use a p500 recovery.img ONLY.

3ncrypt3d_Droid said:
Recovery.img that you flashed is for the optimus v...You have to use a p500 recovery.img ONLY.
Click to expand...
Click to collapse
would that be found in Optimus One, P500 Original Android Development or Optimus One, P500 Android Development?? basically i searched for p500h recovery img but i didnt find anything for p500h specifically. would this one be compatible
[RECOVERY] Unofficial TWRP 2.2.2.1 Full Touch recovery??
Im guessing the only way to unbrick my phone now would be to kdz flash a compatible recovery onto it?
i also tried to use lgdmp + emergency mode to flash a new recovery as suggested in this post but my phone doesnt show up in lgdmp. (and i have installed the lg drivers found here )
also i should mention that i cant see the lg modem drivers in my device manager even though my phone is plugged in and in emergency mode

try this if it works, remove the battery and while pressing vol down conect usb cable(have to w8 a little) to see if something happens or your phone is detected (also remove sd card)

Try this one...
http://forum.xda-developers.com/showthread.php?t=1060121
But be really careful and never remove your battery in Emergency mode.

thanks guys, i installed the android sdk which included some drivers and all of the sudden my phone was showing up in lgdmp. so i was able to flash recovery on it. the phone worked for a while, but now its bootlooping again. i have tried wiping data/cache/dalvik and flashing different roms on it but it still bootlooping at the lg logos

problem with CM10

hello.
i tried to install CM10 for LG O3D P920 with recovery mode and after reboot system , when it star and load only a blue circle which says CyanogenMod and don't open the phone. I cant go back to recovery mode, i tried to pull out the battery but doesnt work, how can i solve that ? thx

robbyyoz said:
hello.
i tried to install CM10 for LG O3D P920 with recovery mode and after reboot system , when it star and load only a blue circle which says CyanogenMod and don't open the phone. I cant go back to recovery mode, i tried to pull out the battery but doesnt work, how can i solve that ? thx
Click to expand...
Click to collapse
Give us more information, what were you on before and what kernel did you used.
Are you using wkparks 1.25 bootloaders?

I will recommend flashing an unlocked BIOS (wkpark's V. 1.25a bootloader) before going any further - LG's locked BIOS is, well, locked as well. CyanogenMod won't be happy even though it will boot just fine - except for ONE thing; NO network.
After flashing the unlocked bootloader, flash either V28 or V21D/E modem baseband firmware.
Lastly, entering the recovery is accomplished with phone off - push all button combo; Power + Volume Down + 3D / Camera button - once it boots, and is entering Recovery service, let go of buttons.
Sent from my LG-P920 using xda premium

Boot loop P500

Hi.
I installed the rom 4.4.4 OS2SD with twrp 2.7.1.0, but because i didn't have baseband (no phone signal) i tried to apply the bbfix, but twrp always said that didnt success installing the zip, so i installed clockworkmod to change recovery to cwm, but i, for some mistake that i don't know how, installed another version that wasn't recommended to P500 (4.0... something), and when restart the phone it loops in lg logo (not freeze) and everytime i put the usb cable it starts automaticly and loops the lg logo, not being able to use the lg tool to flash original firmware.
I can't start the recovery menu (with home, vol , power - combo), only emergency mode can be accessed, but i don't know how to recover anything.
what can i try to do? or the phone is bricked?
Thanks for the attention!