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[Guide] How to unroot, software update and keep your settings for 400 models

OP poczynek

5th July 2014, 06:55 AM   |  #1  
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Ok so after bootlooping my phone, thinking i bricked my phone and finally getting it all working again i stumbled across what i think is the most painless way of unrooting and then software updating without losing your settings.

This worked for my 400k model however am sure the same process could be used with KDZ files for the 855 model.

Steps:

1. Download the 10e KDZ files and the G3 driver from this thread: http://forum.xda-developers.com/show....php?t=2771401

2. Go to this thread and use the method here for how to flash KDZ files: http://forum.xda-developers.com/show....php?t=2432476

3. With that method make sure you choose 'Normal Flash', on the LG Flash Tool. That way you won't lose your settings.

4. Flash 10e KDZ files to your phone.

5. Phone boots and now go to software update and update phone with latest software

6. Use towelroot to root phone again

And you're done!

Takes about 10 minutes.
Last edited by poczynek; 5th July 2014 at 06:58 AM.
5th July 2014, 04:30 PM   |  #2  
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EDIT: Done some research

FYI - the thread for Flashtool 2014 is here - http://forum.xda-developers.com/show....php?t=2797190 - incase you wanted to do more reading about it, and/or thank the developer of the tool (the tool is not his, he just modified an LG tool to make it easier for us)

Just leave it set to CDMA as in the guide (do not worry that you phone is not a CDMA device).
Last edited by Lennyuk; 5th July 2014 at 05:23 PM.
5th July 2014, 07:12 PM   |  #3  
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Quote:
Originally Posted by Lennyuk

EDIT: Done some research

FYI - the thread for Flashtool 2014 is here - http://forum.xda-developers.com/show....php?t=2797190 - incase you wanted to do more reading about it, and/or thank the developer of the tool (the tool is not his, he just modified an LG tool to make it easier for us)

Just leave it set to CDMA as in the guide (do not worry that you phone is not a CDMA device).

Yes so just follow the opening post then ?
5th July 2014, 07:32 PM   |  #4  
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Quote:
Originally Posted by poczynek

Yes so just follow the opening post then ?

I wanted to make sure it was correct, as usually you wouldn't want to flash a stock rom with the incorrect settings! Lol.

Sent from my LG-D855 using Tapatalk
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7th July 2014, 08:03 AM   |  #5  
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the title made me think that it was for 400 mobile phone models. >.<
27th September 2014, 05:15 PM   |  #6  
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can we still use this guide?
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