QFuse

sacredsoul · Oct 20, 2015

Read on a local forums that the 6P has QFuse. He has the device. What does does mean for development? All I know about QFuses is that once it is blown, you can't go back to the original state.

http://forums.hardwarezone.com.sg/97415852-post1515.html

bradputt · Oct 20, 2015

Bro, you should have put this in general forum ley

sacredsoul · Oct 20, 2015

bradputt said:
Bro, you should have put this in general forum ley

Figured this was the right subforums :angel:

640k · Oct 20, 2015

its just a switch. a non-reversible switch. it's used for a single purpose - warranty claims. if you unlock your bootloader and your device "suddenly" becomes unresponsive, manufacturers have the right to deny your warranty claim.

google's nexus program typically does not follow this rule as they encourage the development and use of their devices, but as they work to make android more secure, i would not put it past them to start down the same path as the rest of the OEMs. Moto has stated that they will void your warranty if you unlock the bootloader on the XPE, even though they offer you the path to do so.

its a security risk and google should offer a path to root without compromising your system's integrity.

tech_head · Oct 20, 2015

640k said:
its just a switch. a non-reversible switch. it's used for a single purpose - warranty claims. if you unlock your bootloader and your device "suddenly" becomes unresponsive, manufacturers have the right to deny your warranty claim.

google's nexus program typically does not follow this rule as they encourage the development and use of their devices, but as they work to make android more secure, i would not put it past them to start down the same path as the rest of the OEMs. Moto has stated that they will void your warranty if you unlock the bootloader on the XPE, even though they offer you the path to do so.

its a security risk and google should offer a path to root without compromising your system's integrity.

They cannot deny your warranty for hardware issues once the fuse is blown.
US law prevents the denial; The Magnuson-Moss Warranty Act. Look at Moto's back pedal after it was posted that it was against federal law to deny warranty claims for unrelated issues.

640k · Oct 20, 2015

tech_head said:
They cannot deny your warranty for hardware issues once the fuse is blown.
US law prevents the denial; The Magnuson-Moss Warranty Act. Look at Moto's back pedal after it was posted that it was against federal law to deny warranty claims for unrelated issues.

got a link? when the XPE launched, they flip-flopped and then it was "official". i just assumed they kept their stance.

i know for the '13/'14 X developer editions they tried the same thing and then changed their minds.

sacredsoul · Oct 20, 2015

Well US laws does not help people outside the US. Has Google every publicly stated that hardware issues with Nexus devices will be services, regardless if the bootloader is unlocked or not?

640k · Oct 20, 2015

in the past, they've been good about warranties. i've heard many levels of success stories when dealing with Google directly (vs. buying through third party, amazon, etc.).

autoprime · Oct 20, 2015

qfuse enabled usually means that secure boot is on.. nothing to do with unlocking the bootloader. just about all phones have this set. secure boot enabled forces phone to have signed bootloader. oem unlock enables unsigned boot.img's.. but still requires signed bootloader.

has anyone checked for the qfuse enabled/disabled BEFORE unlocking?

DaveHTC200 · Oct 20, 2015

I've seen an image with it enabled as a stock phone (the thread with the guy answering questions)

Sent from my LG-D802 using Tapatalk

mentalcase87 · Oct 20, 2015

This thread which had some different dialouge going has been closed since it's being disccused here http://xdaforums.com/nexus-6p/general/qfuse-n6p-t3229465 is anyone able to comment on if having qfuse triggered does break anything like finger print reading or are we just looking at warranty coverage issues?

Pecata · Oct 20, 2015

This is interesting...I was going to unlock the bootloader upon receiving my device so I can set it up and root later...but here is the something I have noticed-the pic in this article: http://pocketnow.com/2015/10/20/nexus-6p-bootloader#!prettyPhoto the bootloader is locked and qfuse status is enabled
On this one here: http://www.androidpolice.com/2015/0...owing-off-usb-type-c-port-and-snapdragon-810/
the bootloader is unlocked and the qfuse status is also enabled...it doesn't state anything about ''fuse blown'' or a permanent counter anywhere...

I guess we will have to wait and see-but I want to be able to root my device without voiding warranty and still be able to use the fingerprint scanner...

jkc120 · Oct 20, 2015

Pecata said:
This is interesting...I was going to unlock the bootloader upon receiving my device so I can set it up and root later...but here is the something I have noticed-the pic in this article: http://pocketnow.com/2015/10/20/nexus-6p-bootloader#!prettyPhoto the bootloader is locked and qfuse status is enabled
On this one here: http://www.androidpolice.com/2015/0...owing-off-usb-type-c-port-and-snapdragon-810/
the bootloader is unlocked and the qfuse status is also enabled...it doesn't state anything about ''fuse blown'' or a permanent counter anywhere...

I guess we will have to wait and see-but I want to be able to root my device without voiding warranty and still be able to use the fingerprint scanner...

That's a great observation! Although I guess it's possible they trip the qfuse upon oem lock? Hopeful that this is all just people overreacting...

Pecata · Oct 20, 2015

jkc120 said:
That's a great observation! Although I guess it's possible they trip the qfuse upon oem lock? Hopeful that this is all just people overreacting...

I am hoping! This is never been an issue with a nexus device-that i why we buy nexus devices-we want the root access and we want to customize them...Google knows it-hopefully this won't affect us much...

jkc120 · Oct 20, 2015

Pecata said:
I am hoping! This is never been an issue with a nexus device-that i why we buy nexus devices-we want the root access and we want to customize them...Google knows it-hopefully this won't affect us much...

Yeah I doubt Google would honestly try to deny a warranty claim for an obvious hardware defect if your bootloader was unlocked or the qfuse blown, but I guess it'd be of more concern if people bought directly from Huawei and what their stance is, if in fact the qfuse does get blown.

boxcar8028 · Oct 20, 2015

If QFuse is going to break anything like the finger print reader or your warranty then why would Google give you the official instructions on how to unlock the bootloader?

https://developers.google.com/android/nexus/images

Pecata · Oct 20, 2015

boxcar8028 said:
If QFuse is going to break anything like the finger print reader or your warranty then why would Google give you the official instructions on how to unlock the bootloader?

https://developers.google.com/android/nexus/images

That's what I am thinking....but then why put the qfuse in a first place?

Koopa777 · Oct 20, 2015

Ron Amadeo (Ars Technica) has confirmed that bootloader unlock does NOT break Nexus Imprint.

https://plus.google.com/+RonAmadeo/posts

First post.

Pecata · Oct 20, 2015

Koopa777 said:
Ron Amadeo (Ars Technica) has confirmed that bootloader unlock does NOT break Nexus Imprint.

https://plus.google.com/+RonAmadeo/posts

First post.

Great news!

WhiteAsIce · Oct 20, 2015

Koopa777 said:
Ron Amadeo (Ars Technica) has confirmed that bootloader unlock does NOT break Nexus Imprint.

https://plus.google.com/+RonAmadeo/posts

First post.

That's a relief! Unlocking does not affect the fingerprint scanner, nor does it disable Android Pay?

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