nexus 6 - upgrade to 5.01 without losing deencrption?

Anthony Srdar

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Is there an easy way to do this on the N6? Or will I have to de-encrypt and wipe every time? I am also on LRX210 still, so will the OTA update from the AOSP site still work for me?
 
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jj14x

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

I assume you meant to type 5.0.1 in your subject line (not 4.01)

You can download the factory images and extract all the images from it, and flash everything except the userdata.img (and replace the boot.img with the appropropriate noforceencrypt image - similar to the one that you flashed to decrypt in the first place).
OTA won't work for you if you have made any changes to the system partition - even a simple change like rooting will cause OTA issues
 

Adranalyne

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

I assume you meant to type 5.0.1 in your subject line (not 4.01)

You can download the factory images and extract all the images from it, and flash everything except the userdata.img (and replace the boot.img with the appropropriate noforceencrypt image - similar to the one that you flashed to decrypt in the first place).
OTA won't work for you if you have made any changes to the system partition - even a simple change like rooting will cause OTA issues

Yeah. As long as you have the appropriate boot.img, you'll be fine. I did it when the factory image became available.

Posted via the Android Central App
 

Anthony Srdar

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

So it's unlocked, rooted, with de-encrypted.

Can I still use the factory image, just swap theboot_ noforceencrypt.img and remove the userdata.img and boot.img from the factory image?
 

Anthony Srdar

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

So it's unlocked, rooted, with de-encrypted.

Can I still use the factory image, just swap theboot_ noforceencrypt.img and remove the userdata.img and boot.img from the factory image?

before I go do this, is this accurate? I don't want to lose my data or the de-encryption! Is this also the image to sideload?

https://dl.google.com/dl/android/aosp/shamu-lrx22c-factory-ff173fc6.tgz

Looks like I figured it out:

http://forum.xda-developers.com/nex...e-forced-encryption-gain-root-t2946715/page40
 
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americasteam

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

So it's unlocked, rooted, with de-encrypted.

Can I still use the factory image, just swap theboot_ noforceencrypt.img and remove the userdata.img and boot.img from the factory image?
Just flash the radio and system img. No need to flash anything else. Its not necessary to flash the radio either. That's entirely up to you.
 

Erick Newman

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

What is the bonus of decrypting your device does the sudden lag or application loading time go away.
 

Anthony Srdar

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

What is the bonus of decrypting your device does the sudden lag or application loading time go away.

I noticed a huge speed improvement when opening applications. I can't speak to battery life, but I had to imagine it helped, I was not encrypted very long.
 

jj14x

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

Encryption does cause overhead. Personally, I haven't noticed a lag on my encrypted Nexus 6, so I didn't bother with decryption. But benchmarks show a significant reduction in read/write performance with encryption enabled.
 

Anthony Srdar

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

Encryption does cause overhead. Personally, I haven't noticed a lag on my encrypted Nexus 6, so I didn't bother with decryption. But benchmarks show a significant reduction in read/write performance with encryption enabled.

I didn't think I noticed any lag with encryption either, then I de-encrypted it and it was pretty obvious to me. Doing anything was substantially faster, the animations were snappier, no lag, switching/openings apps is noticible faster. But it's one of those you won't know you don't have it til you try it.
 

jj14x

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Re: nexus 6 - upgrade to 4.01 without losing deencrption?

To each their own :)
I am rooted, and did try decryption for about a couple of days. I didn't notice enough (any) performance gain to justify decryption, so when I loaded 5.0.1, I left it encrypted.
 

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