[HELP] downgrade my rom v10e to v10b - Optimus One, P500, V General

HElp guys i have a problem i try to downgrade my rom v10e to v10b but using kdz updater but my problem is when i turn on the phone its already on emergency mode help plsss

I think u have flashed wrong rom

im from philippines my official rom is v10e then want to downgrade to v10b

problem solved im just stupid because everytime my i got error on USB i didnt reset my phone so i just reset my phone and recognized it then i use KDZ then 3gqct and CS mergency then flash into 10b ROM. thanks anyway

Related

Optimus one can't boot

Hi. I have a big problem with my O1. It can't boot-only bootloops. I can't do hard reset-it shows fastboot mode start.
That happened after i flashed V20G (2.3.3 GB STOCK) via KDZ Flasher. Any solutions?!
flash a recovery .img through fastboot (search in general thread about how to do it)
then clean up everything (except sd card) and install any rom as usual...
insitex said:
Hi. I have a big problem with my O1. It can't boot-only bootloops. I can't do hard reset-it shows fastboot mode start.
That happened after i flashed V20G (2.3.3 GB STOCK) via KDZ Flasher. Any solutions?!
Click to expand...
Click to collapse
Agree with shubamjain001....
Flash a new recovery....via SDK... or u can also flash it again via kdz to v10e firmware.. which never bricks ur phone ,as v20 roms usually do...
Go to the emergency mode.. n try to flash v10e..
if ur phone is not detected in kdz.. there is a key combination that allows ur phone to detect ...http://forum.xda-developers.com/showthread.php?t=1227745... make sure ur modem is disabled n select emergency instead of diag. In kdz....
Or u may use alternate solutions as per the above mentioned thread...
Press THANKS if I help you..!!
Sent from my [email protected] OpTiMu$ On€ [email protected]

[Q] P765 Baseband Related.

Okay so I unlocked my bootloader way back, I flashed the v20C Europe KDZ, and installed CM10.1 everything is working as it should
Right now am on Baseband: LGP760AT-00-V20C-EUR-XXX-MAR-25-2013 and I have a P765
1. Is it absolutely necessary to flash back the Indian v20A baseband? Does it affect the performance or battery life?
(Signal is good but it does lose a bar or two sometimes, which didn't happen before)
2.Will Clockwork Recovery get removed if I flash a KDZ?
3. And even if I decide to flash the baseband I would have to, first restore the V20A CWM backup and then put it in LG mode and offline flash v20A and then flash CM10.1 right?
I know it's a stupid question, but please help me out, I ain't a noob, just wanted to clear this doubt.
Thanks in advance
SteevCriss said:
Okay so I unlocked my bootloader way back, I flashed the v20C Europe KDZ, and installed CM10.1 everything is working as it should
Right now am on Baseband: LGP760AT-00-V20C-EUR-XXX-MAR-25-2013 and I have a P765
1. Is it absolutely necessary to flash back the Indian v20A baseband? Does it affect the performance or battery life?
(Signal is good but it does lose a bar or two sometimes, which didn't happen before)
2.Will Clockwork Recovery get removed if I flash a KDZ?
3. And even if I decide to flash the baseband I would have to, first restore the V20A CWM backup and then put it in LG mode and offline flash v20A and then flash CM10.1 right?
I know it's a stupid question, but please help me out, I ain't a noob, just wanted to clear this doubt.
Thanks in advance
Click to expand...
Click to collapse
1. It's not necessary but you should flash your kdz back to restore your original baseband. If all signal, 2G/3G works, you don't need to flash your kdz back.
2. Flash kdz remove CWM from your phone. All you need to do is fastboot your phone and reinstall it.
3. Not sure about this. Try to turn on your phone in CM and flash using DIAG mode. If it not work boot your phone to S/W update mode and try to flash again in emergency mode. If all doesn't work just flash a stock based custom rom to get back LG software mode.
Thanks man.
Sent from my LG-P760 using Tapatalk 4

[Q] after flashing original stockfirmware ,i'm unable to root my phone lg l3 e400

hello friends !!
please do help me
i'm using lg l3 e400 !
actually my went in boot loop ,so it ws unable to start then i flashed kdz V10L(as i'm from india ).
then my phone sarted normally!but the main problem is that now i tired to root my phone so many times but always and error comes link failed permission denied !!so i think that after flashing orginal kdz flash (stock rom )kdz V10L we are unable to root !!
so please if you have any suggestion then please ,please do reply .....!!
gandhivivek96 said:
hello friends !!
please do help me
i'm using lg l3 e400 !
actually my went in boot loop ,so it ws unable to start then i flashed kdz V10L(as i'm from india ).
then my phone sarted normally!but the main problem is that now i tired to root my phone so many times but always and error comes link failed permission denied !!so i think that after flashing orginal kdz flash (stock rom )kdz V10L we are unable to root !!
so please if you have any suggestion then please ,please do reply .....!!
Click to expand...
Click to collapse
try this
1. wipe ur phone using recovery
2. flash the firmware again
3. try to root again
robinsahlot said:
try this
1. wipe ur phone using recovery
2. flash the firmware again
3. try to root again
Click to expand...
Click to collapse
i'm afraid to flash it again cuz last time my phone went in boot loop !!
by the way is it like that after flashing with kdz V10L your phone will not be rooted ?????
gandhivivek96 said:
i'm afraid to flash it again cuz last time my phone went in boot loop !!
by the way is it like that after flashing with kdz V10L your phone will not be rooted ?????
Click to expand...
Click to collapse
try rooting ur phone using SuperOneClick
while rooting lg l3 e400 using spectrum windows file !
running bat file an error comes that "adb" is not recognized !!so whats the solution ??
confused
i have flashed my phone with V10L
and now i'm unable to root !!
so can u tell me to downnload which version kdz file???

[GUIDE] How to back out of KitKat to Jelly Bean? | Downgrade to JB LG G2

Many of you will have happened to them what to me, upgraded to VDF KitKat and then realized that root could not be and without root cannot modify anything.
You tried to Flash a ROM JB format KDZ and found out that you can't.
Behold the solution!!
Back to Jelly Bean in a LG G2
It is a bit laborious but simple
1.- Will have to follow the tutorial Manual LGFlashtool, here one is Spanish with pictures and everything, here hyelton LG G2 Stock Firmware (Go Back to Stock)
2.- Download the ROM TOT JB for your phone model: http://downloads.codefi.re/autoprime/LG/LG_G2
3.- Turn on the phone in mode Downloader, (Vol+ & USB to PC)
4.- Connect the phone to the USB port and start the downgrade
5.- When finished it will skip this message on the phone:
"Enter the PIN/password to decrypt"
[_____________________]
NOTE
There I was wrong, and I didn't know that, but I think that it must be the password for your Gmail account
As I have said, I'm wrong, because I turned off the phone, then I had to activate the keyboard from the status bar, enter Hidden Menu (in my case I have a D802 - 3845#*802#) and do a Factory Reset.
I'm not sure if it will erase everything by typing the correct code, including the SD, but when in doubt and always before flashing I recommend BACKUP, BACKUP, BACKUP...
Now you can already root install modified Recovery and install KK rooted from Recovery
Good lucky
Doesn't work for D805, have the ToT but don't have the DLL for D805
Ps: tried to extract DLL from KDZ file but i receive:
CrossDL [D802] to [D805] error in LG Flash Tools
ioroot25 can root stock kitkat and you can get twrp recovery with autorec
Homero2 said:
Many of you will have happened to them what to me, upgraded to VDF KitKat and then realized that root could not be and without root cannot modify anything.
You tried to Flash a ROM JB format KDZ and found out that you can't.
Behold the solution!!
Back to Jelly Bean in a LG G2
It is a bit laborious but simple
1.- Will have to follow the tutorial Manual LGFlashtool, here one is Spanish with pictures and everything, here hyelton LG G2 Stock Firmware (Go Back to Stock)
2.- Download the ROM TOT JB for your phone model: http://downloads.codefi.re/autoprime/LG/LG_G2
3.- Turn on the phone in mode Downloader, (Vol+ & USB to PC)
4.- Connect the phone to the USB port and start the downgrade
5.- When finished it will skip this message on the phone:
"Enter the PIN/password to decrypt"
[_____________________]
NOTE
There I was wrong, and I didn't know that, but I think that it must be the password for your Gmail account
As I have said, I'm wrong, because I turned off the phone, then I had to activate the keyboard from the status bar, enter Hidden Menu (in my case I have a D802 - 3845#*802#) and do a Factory Reset.
I'm not sure if it will erase everything by typing the correct code, including the SD, but when in doubt and always before flashing I recommend BACKUP, BACKUP, BACKUP...
Now you can already root install modified Recovery and install KK rooted from Recovery
Good lucky
Click to expand...
Click to collapse
Which file for jelly bean bro whats its name?
cmanju88 said:
Which file for jelly bean bro whats its name?
Click to expand...
Click to collapse
Hello cmanju88, this is the method I use to move from KK to JB, the ROM KDZ the LG Server Disclaimer, the TOT from the link I put above.
To Flash ROM version will vary depending on the phone model, for example
G2 - D80x
V10x = JB
V20x = KK
Homero2 said:
Hello cmanju88, this is the method I use to move from KK to JB, the ROM KDZ the LG Server Disclaimer, the TOT from the link I put above.
To Flash ROM version will vary depending on the phone model, for example
G2 - D80x
V10x = JB
V20x = KK
Click to expand...
Click to collapse
Is this file works on lg g2 16GB Indian international phone.?
Homero2 said:
Hello cmanju88, this is the method I use to move from KK to JB, the ROM KDZ the LG Server Disclaimer, the TOT from the link I put above.
To Flash ROM version will vary depending on the phone model, for example
G2 - D80x
V10x = JB
V20x = KK
Click to expand...
Click to collapse
I downloaded the jelly bean kdz file and installed but it got stuck boot looping. Just shuts down, starts and repeats. It doesn't work. Also mine doesn't even go for stock recovery, it just restarts.
cmanju88 said:
I downloaded the jelly bean kdz file and installed but it got stuck boot looping. Just shuts down, starts and repeats. It doesn't work. Also mine doesn't even go for stock recovery, it just restarts.
Click to expand...
Click to collapse
Hi cmanju88
Did you manage to go back to JB? which KDZ file did you download? and where did you find it? i want to go back to JB also :angel:
Thanks
Eelvex said:
Hi cmanju88
Did you manage to go back to JB? which KDZ file did you download? and where did you find it? i want to go back to JB also :angel:
Thanks
Click to expand...
Click to collapse
use this tool and flash JB kdz of u'r phone model using CPE flash method. u can easily go back to JB.
http://forum.xda-developers.com/showthread.php?t=2797190
createben said:
use this tool and flash JB kdz of u'r phone model using CPE flash method. u can easily go back to JB.
http://forum.xda-developers.com/showthread.php?t=2797190
Click to expand...
Click to collapse
Hi createben
Thanks for the fast reply ,My phone is not rooted i just updated to KK via wifi and i want to go back to JB i have LG g2 Model number LG-D802
software version D80220c-AME-XX, Can you please tell me wich KDZ file i should use and where i can download it from?
Thanks in advance
Homero2 said:
Many of you will have happened to them what to me, upgraded to VDF KitKat and then realized that root could not be and without root cannot modify anything.
You tried to Flash a ROM JB format KDZ and found out that you can't.
Behold the solution!!
Back to Jelly Bean in a LG G2
It is a bit laborious but simple
1.- Will have to follow the tutorial Manual LGFlashtool, here one is Spanish with pictures and everything, here hyelton LG G2 Stock Firmware (Go Back to Stock)
2.- Download the ROM TOT JB for your phone model: http://downloads.codefi.re/autoprime/LG/LG_G2
3.- Turn on the phone in mode Downloader, (Vol+ & USB to PC)
4.- Connect the phone to the USB port and start the downgrade
5.- When finished it will skip this message on the phone:
"Enter the PIN/password to decrypt"
[_____________________]
NOTE
There I was wrong, and I didn't know that, but I think that it must be the password for your Gmail account
As I have said, I'm wrong, because I turned off the phone, then I had to activate the keyboard from the status bar, enter Hidden Menu (in my case I have a D802 - 3845#*802#) and do a Factory Reset.
I'm not sure if it will erase everything by typing the correct code, including the SD, but when in doubt and always before flashing I recommend BACKUP, BACKUP, BACKUP...
Now you can already root install modified Recovery and install KK rooted from Recovery
Good lucky
Click to expand...
Click to collapse
Is this for the 16GB version or the 32GB version? You didn't specify anywhere and I just want to confirm before i accidentally brick my phone by flashing the wrong firmware.

[Q] how to update to official lollipop

hi,
i could anyone give me a complete guide from stock rom to the latest lollipop?
i tried flashing the kdz found here ( https://twitter.com/lg_firmware?lang=it ) using this tool ( http://forum.xda-developers.com/showthread.php?t=2797190 ) but it ended up with a bricked phone. now i'm back to stock.
it seems some guys managed to update their devices manually, so could you just explain me how you did it?
i have a european D620r (LTE)
thanks
Did you choose the kdz for you model (I mean, maybe you picked D618 instead of D620)?
Have you done "CSE Flash" instead of "Normal Flash" while using Flash Tool?
Yes i did choose the correct model. And i also picked cse flash. But then am error came up in the middle of the process, the phone got stuck at the loading screen and i was unable to connect to the flash tool. In fact, i couldn't even restore a backup because my cwm recovery was gone. I don't want to try that again because it cost me 15 euro to get the phone repaired (flashed back to stock).
Sent from my LG-D620 using XDA Free mobile app

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