[Q] Moving to official LG firmware from CM7? - Optimus One, P500, V General

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

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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
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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.

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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
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Click to collapse
Ignore the previous reply. If you flash the official unbranded Euro version v20e using KDZ, superoneclick works just fine.

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gkarthik16 said:
You cannot root the 2.3.3 update from LG, afaik. You've to downgrade it to froyo to root it again.
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Click to collapse
You can root the official GB using superoneclick ...search the forum for more

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majorfigjam said:
Ignore the previous reply. If you flash the official unbranded Euro version v20e using KDZ, superoneclick works just fine.
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shrewdgeek said:
You can root the official GB using superoneclick ...search the forum for more
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Didn't know that. The sticky thread is not updated with this info I guess. Thanks for letting me know.

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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?

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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?
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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.

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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?
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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.

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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.
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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.

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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.
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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..

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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?

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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??

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rooted finally -> http://forum.xda-developers.com/showpost.php?p=15454927&postcount=7

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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.