how to downgrade to android 2.2 - Optimus One, P500, V General

hello guys.i want to downgrade from 2.3 gingerbread android release to 2.2.is there a way?
my phone is unrooted and currently it runs 2.3 release.

thrylosthyra7 said:
hello guys.i want to downgrade from 2.3 gingerbread android release to 2.2.is there a way?
my phone is unrooted and currently it runs 2.3 release.
Click to expand...
Click to collapse
Go to this thread. Download an official 2.2 firmware and flash it through KDZ. All the how-tos are present in the same thread.

gkarthik16 said:
Go to this thread. Download an official 2.2 firmware and flash it through KDZ. All the how-tos are present in the same thread.
Click to expand...
Click to collapse
my phone is unrooted...and basically the main reason i want to downgrade it is to run an app without rooting it.

thrylosthyra7 said:
my phone is unrooted...and basically the main reason i want to downgrade it is to run an app without rooting it.
Click to expand...
Click to collapse
To flash an official ROM through KDZ, you need not have root access.

And stop asking the same question over and over again.... Please....

Related

[Q]Update to SE Gingerbread

Hi,
Now that the release of the official GB rom from SE is near, the only question that
I have is that will be possible to update from TripNMiui 1.5.6 2.2 rom directly to the official 2.3.3 rom using PC Companion
or
I'll have to downgrade to the generic 2.1 and then upgrade?
Thanks in advance
This might answer your question...
unknown13x said:
I already got some confirmation that if you modified the firmware or using any modded firmware, you will not be able to update to 2.3. The updater will give you a message that your firmware is not genuine. Like I said, to update, just switch back to SE's stock firmware and do not root it. Root AFTER you update to 2.3.
Click to expand...
Click to collapse
It did Thanks

[Q] Moving to official LG firmware from CM7?

i rooted this last night with z4root and did a nandroid backup and then flashed the mik_os compile of CM7, everything has gone fine, but i have decided to try the official firmware to see how it is.
if i nandroid back to the original LG firmware (which was 2.2 based) and then update to the latest release, is it still possible after that to go back to CM7 again if i find i don't like the official gingerbread update? ie. is it possible to root the latest gingerbread update?
i am doing this partly to get the latest radio version but also just to see how good the lg version is compared to aosp/CM
wrsg said:
i rooted this last night with z4root and did a nandroid backup and then flashed the mik_os compile of CM7, everything has gone fine, but i have decided to try the official firmware to see how it is.
if i nandroid back to the original LG firmware (which was 2.2 based) and then update to the latest release, is it still possible after that to go back to CM7 again if i find i don't like the official gingerbread update? ie. is it possible to root the latest gingerbread update?
i am doing this partly to get the latest radio version but also just to see how good the lg version is compared to aosp/CM
Click to expand...
Click to collapse
You cannot root the 2.3.3 update from LG, afaik. You've to downgrade it to froyo to root it again.
wrsg said:
i rooted this last night with z4root and did a nandroid backup and then flashed the mik_os compile of CM7, everything has gone fine, but i have decided to try the official firmware to see how it is.
if i nandroid back to the original LG firmware (which was 2.2 based) and then update to the latest release, is it still possible after that to go back to CM7 again if i find i don't like the official gingerbread update? ie. is it possible to root the latest gingerbread update?
i am doing this partly to get the latest radio version but also just to see how good the lg version is compared to aosp/CM
Click to expand...
Click to collapse
Ignore the previous reply. If you flash the official unbranded Euro version v20e using KDZ, superoneclick works just fine.
gkarthik16 said:
You cannot root the 2.3.3 update from LG, afaik. You've to downgrade it to froyo to root it again.
Click to expand...
Click to collapse
You can root the official GB using superoneclick ...search the forum for more
majorfigjam said:
Ignore the previous reply. If you flash the official unbranded Euro version v20e using KDZ, superoneclick works just fine.
Click to expand...
Click to collapse
shrewdgeek said:
You can root the official GB using superoneclick ...search the forum for more
Click to expand...
Click to collapse
Didn't know that. The sticky thread is not updated with this info I guess. Thanks for letting me know.
ok just to be sure, is the official euro unbranded version this one?? -> http://www.multiupload.com/Q1OOK81QDJ
also this contains the latest radio version, correct?
wrsg said:
ok just to be sure, is the official euro unbranded version this one?? -> http://www.multiupload.com/Q1OOK81QDJ
also this contains the latest radio version, correct?
Click to expand...
Click to collapse
Yes, that's the euro version and the new baseband will be flashed automatically.
If you want to go back to CM7 you will have to flash the old baseband via LGMDP or a froyo rom via KDZ.
wrsg said:
ok just to be sure, is the official euro unbranded version this one?? -> http://www.multiupload.com/Q1OOK81QDJ
also this contains the latest radio version, correct?
Click to expand...
Click to collapse
actually i'm not sure if this is the best one to use, its a 7z file and i'm not sure how to flash it. it contains a number of .img files as well as some .mbn files.
will have to keep looking.
wrsg said:
actually i'm not sure if this is the best one to use, its a 7z file and i'm not sure how to flash it. it contains a number of .img files as well as some .mbn files.
will have to keep looking.
Click to expand...
Click to collapse
There is a rom search & download tool on this forum wich will help you download the correct .kdz file; you have to search the thread which contains it.
22VIN said:
There is a rom search & download tool on this forum wich will help you download the correct .kdz file; you have to search the thread which contains it.
Click to expand...
Click to collapse
tried already, that is how i found the 7z unpacked version. the official LG website link is saying 'Forbidden'
ie. this one -> http://csmg.lgmobile.com:9002/swdata/WEBSW/LGP500/ANEUBK/V20e_00/V20E_00.kdz
people have reported the unpacked version working, but i was a bit hesistant as its not how i have done different LG phones, i have normally used the .kdz
if anyone has the v20e .kdz could they mirror it somewhere, would be appreciated by a lot of ppl i think..
ok got v20e flashed finally, now only problem is rooting it, tried superoneclick but getting
Code:
Remounting /system with read-write access...
mount: Operation not permitted
FAILED
also trying gingerbreak, not much luck there either... am i doing something wrong?
majorfigjam said:
Ignore the previous reply. If you flash the official unbranded Euro version v20e using KDZ, superoneclick works just fine.
Click to expand...
Click to collapse
did you actually get this to work? how?? so many ppl have reported the mount error that it no longer seems like coincidence??
rooted finally -> http://forum.xda-developers.com/showpost.php?p=15454927&postcount=7
Glad you got it sorted.
I just followed the same instructions you did, and never had any mount errors on either of the two phones I've rooted.

lgp500 update

ihave lgp500
iwant to update it from android verision 2.3.3 to last verision
but idonot know how to update it
please help me to update it and idonot know back up and how to made it please help me
Read the sticky thread of how to and stop spamming :banghead:
Sent from my LG-P500 using xda premium
idonot know any thing about updating android to the last verision and kernel but ihave made root
please help me to update it in last android verision idonot know any thing about rom and kernels please help me
elkamele said:
idonot know any thing about updating android to the last verision and kernel but ihave made root
please help me to update it in last android verision idonot know any thing about rom and kernels please help me
Click to expand...
Click to collapse
IF you have root then download the ClockworkMod apk from market and install recovery.Use the search button please.
From LG, the Android 2.3.3 is the latest update. If you want to use rom (custom android) made from the devs here, you have to install a custom recovery. Search, read and understand the benefits and dangers of this...
The clockworkmod is the easy way to install custom recovery, but may brick your phone (because it download the file, but don't verify if it is complete) and then you must use the others method.
Shaib Lftg said:
From LG, the Android 2.3.3 is the latest update. If you want to use rom (custom android) made from the devs here, you have to install a custom recovery. Search, read and understand the benefits and dangers of this...
The clockworkmod is the easy way to install custom recovery, but may brick your phone (because it download the file, but don't verify if it is complete) and then you must use the others method.
Click to expand...
Click to collapse
thanks for you ineed to update to ice cream but idonot know how to update it to android ice cream please helpme
to update it and how do it
elkamele said:
thanks for you ineed to update to ice cream but idonot know how to update it to android ice cream please helpme
to update it and how do it
Click to expand...
Click to collapse
First ROOT your phone. Then install a recovery. Download a ROM. Flash it and ENJOY !!!!!!!
for more better use GOOGLE.....

[Q] How to unroot galaxy mega 5.8??

So i rooted the device using odin 5.0.7 and saw that i cannot update my O.S
Can anybody give me a step by step instruction on how to unroot my device or if there is any way to upgrade my rotted device??
P.S-I am a newbie and i know very little about such things
If you have superuser by chainfire then you can unroot using the app itself. Otherwise download and flash via odin any stock firmware to unroot. Better still flash the latest stock instead of ota updating.
Metalrocker24 said:
So i rooted the device using odin 5.0.7 and saw that i cannot update my O.S
Can anybody give me a step by step instruction on how to unroot my device or if there is any way to upgrade my rotted device??
P.S-I am a newbie and i know very little about such things
Click to expand...
Click to collapse
If you want root you are going to have to flash the new Roms as they are released and not try OTA anyway. If you want stock, that's fine, but you can't do much around here with a stock Rom.
Kangburra said:
If you want root you are going to have to flash the new Roms as they are released and not try OTA anyway. If you want stock, that's fine, but you can't do much around here with a stock Rom.
Click to expand...
Click to collapse
Thats for i9205 my model is i9152

[Q] How to revert back to android 3.2

Hi, is there any way to downgrade the android from 4.0.4 to 3.2? My tab is very laggy. This start after been root by my brother. Thanks before.
Fabee2008 said:
Hi, is there any way to downgrade the android from 4.0.4 to 3.2? My tab is very laggy. This start after been root by my brother. Thanks before.
Click to expand...
Click to collapse
Use Odin to install the stock 3.2 rom or use recovery to flash a custom 3.2 rom.

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