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Going to buy Nexus 7 : any hardware checklist I should perform?

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bleuxeon
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Question Going to buy Nexus 7 : any hardware checklist I should perform?

Hi,
I m going to buy the Nexus 7 2013.
I would like to know if there are common hardware/software malfunctions I should be aware of and watch as soon as I will received it.

Also are there any hardware revisions better than other?

Last : is there any different CPU's quality like in Nexus 5 (PVS from 0 to 6)?

Thanks for your help!
RIP lost Galaxy S2
NEXUS 5, D821, black, 32Gb
Kernel : franco.Kernel
ROM : Paranoid

Nexus 7 2013 32Gb
Kernel : Glitch/ElementalX
ROM : Paranoid/Cleanrom testing

 
wantabe
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Quote:
Originally Posted by bleuxeon View Post
Hi,
I m going to buy the Nexus 7 2013.
I would like to know if there are common hardware/software malfunctions I should be aware of and watch as soon as I will received it.

Also are there any hardware revisions better than other?

Last : is there any different CPU's quality like in Nexus 5 (PVS from 0 to 6)?

Thanks for your help!
Touch response and squeaking on the edges.
"Don't confuse me with facts, I've already made up my mind!"

AT&T HTC One X - 4.2.2 CleanROM-odexed/Xposed/ElementalX
Nexus 5 32GB
Nexus 7 32GB (2013)
Nexus 4 8GB-Moved to Better Home!
Nexus 7 16GB-Moved to Better Home!.
Nexus 7 32GB-Moved to Better Home!
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bleuxeon
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ok thanks.
Regarding the PVS, I have found answers : http://forum.xda-developers.com/show....php?t=2381501

But, regarding revisions, do you know if there is different batch?
RIP lost Galaxy S2
NEXUS 5, D821, black, 32Gb
Kernel : franco.Kernel
ROM : Paranoid

Nexus 7 2013 32Gb
Kernel : Glitch/ElementalX
ROM : Paranoid/Cleanrom testing

 
Aerowinder
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Originally Posted by bleuxeon View Post
ok thanks.
Regarding the PVS, I have found answers : http://forum.xda-developers.com/show....php?t=2381501

But, regarding revisions, do you know if there is different batch?
Don't think PVS is something worth your concern.


There are a handful of things you should know:

1)Unlock the bootloader straight away if you ever plan to root. Some of these tablets, for some reason, will not wipe userdata via fastboot when you are unlocking the bootloader, it just sits on erasing userdata forever. Boot the tablet into Android for the first time, restart it in bootloader mode, unlock the bootloader (fastboot oem unlock), reboot into Android, reboot into bootloader, flash TWRP, done.

2) The touch screen issues sometimes don't appear until the tablet has been online for a couple days. Use this app: https://play.google.com/store/apps/d...d=com.rn.yamtt

Use one finger, swipe every where, tap everywhere. Do again with 2, 3 fingers. The N7 2013 is notorious for having "ghost touches". The screen is registering a touch where it was not touched. This is very obvious to see with the app I linked.

3) Make sure the tablet will connect to the computer with USB debugging on and off.

I think that's it.
 

Google Firmware: Google
USB Drivers: Google | Mirror
ADB+ADB Drivers: 19.0.2 (4.4.4) + Koush Universal ADB Drivers

TWRP Official: hammerhead | flo
TWRP Holofied: hammerhead | flo

Gapps: jajb

Superuser: Chainfire | Mirror
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bleuxeon
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ouch...
Thanks!
That's promising me hours if not days of hand testing...

Regarding the PVS it looks like 50% of the Nexus 7 are PVS 3, that's fine and should allow average undervolting I guess/hope.


Thanks again for all those infos.


Last question : Are the LTE version, aside from LTE support, better/worse for any reason?
RIP lost Galaxy S2
NEXUS 5, D821, black, 32Gb
Kernel : franco.Kernel
ROM : Paranoid

Nexus 7 2013 32Gb
Kernel : Glitch/ElementalX
ROM : Paranoid/Cleanrom testing

 
wantabe
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Originally Posted by bleuxeon View Post
ouch...
Thanks!
That's promising me hours if not days of hand testing...

Regarding the PVS it looks like 50% of the Nexus 7 are PVS 3, that's fine and should allow average undervolting I guess/hope.


Thanks again for all those infos.


Last question : Are the LTE version, aside from LTE support, better/worse for any reason?
I should have done a better job in my previous post, as usual Aerowinder was very precise! I will use the excuse that I had one eye open at the time. ; ) I think it's very important to verify touch screen response is working properly within the first week. My first 2013 N7 I pre-ordered through Best Buy, luckily. It had a vertical section in the middle of the screen that would always register a longpress as a tap. Very annoying because immediately after opening the box I unlocked the bootloader, flashed TWRP and rooted it. Then... after I had most everything downloaded and setup I realized it had screen issues! Had to flash the factory image and lock the bootloader then took my silly a$$ to Best Buy and did an exchange, all in the first day! So... I would wait a bit before unlocking the bootloader, maybe a few hours or a couple days, whatever works for you. You have one week to return or do an exchange, after that it's a RMA to Asus.

My N7 is also PVS 3 and I realized a couple months ago that my N7 had a slight occasional micro stutter swiping between home screens, app drawer, scrolling in the browser and I've only ever undervolted the lowest frequency, 384 MHz. I could live with the occasional stutter but I'm using stock voltages now and battery life is still pretty good, stutter is gone. Your mileage will vary with undervolting.

LTE? I personally don't see the point of the added cost and getting much slower updates. I've always been able to tether all of my different N7's to either my One X, N4 or N5 and it works very well depending on cell signal strength of course. I've had unlimited data for years and I'm setup to not pay extra for tethering. So...either version of the Nexus 7 2013 is a very nice tablet, if I could stretch the screen to 8" it would be perfect!
"Don't confuse me with facts, I've already made up my mind!"

AT&T HTC One X - 4.2.2 CleanROM-odexed/Xposed/ElementalX
Nexus 5 32GB
Nexus 7 32GB (2013)
Nexus 4 8GB-Moved to Better Home!
Nexus 7 16GB-Moved to Better Home!.
Nexus 7 32GB-Moved to Better Home!
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bleuxeon
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Thanks a lot for all these details.

But isn't what Aerowinder said the most critical step?
Since there are chances that I won't be able to properly unlock the bootloader if I wait too much while testing the screen :

Quote:
1)Unlock the bootloader straight away if you ever plan to root. Some of these tablets, for some reason, will not wipe userdata via fastboot when you are unlocking the bootloader, it just sits on erasing userdata forever. Boot the tablet into Android for the first time, restart it in bootloader mode, unlock the bootloader (fastboot oem unlock), reboot into Android, reboot into bootloader, flash TWRP, done.
The question is : what is the exact state of the tablet when the unlocking/rooting goes bad? Can it still be reverted to a stock's state in order to be returned to the seller or is it in kind of bricked state?
I would probably buy it to Amazon.fr (even if its 40 more than in other shop), Amazon gives me 30 days for testing
RIP lost Galaxy S2
NEXUS 5, D821, black, 32Gb
Kernel : franco.Kernel
ROM : Paranoid

Nexus 7 2013 32Gb
Kernel : Glitch/ElementalX
ROM : Paranoid/Cleanrom testing

 
bleuxeon
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Ok received, unlocked, rooted, PA installed, Flashing Franco kernel to be done

PVS 3
BIN 14

no surprise...

Touch screen tested and looks perfect for now.
RIP lost Galaxy S2
NEXUS 5, D821, black, 32Gb
Kernel : franco.Kernel
ROM : Paranoid

Nexus 7 2013 32Gb
Kernel : Glitch/ElementalX
ROM : Paranoid/Cleanrom testing

 
wantabe
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Quote:
Originally Posted by bleuxeon View Post
Ok received, unlocked, rooted, PA installed, Flashing Franco kernel to be done

PVS 3
BIN 14

no surprise...

Touch screen tested and looks perfect for now.
Glad you received your N7 and have it setup! Enjoy!
"Don't confuse me with facts, I've already made up my mind!"

AT&T HTC One X - 4.2.2 CleanROM-odexed/Xposed/ElementalX
Nexus 5 32GB
Nexus 7 32GB (2013)
Nexus 4 8GB-Moved to Better Home!
Nexus 7 16GB-Moved to Better Home!.
Nexus 7 32GB-Moved to Better Home!

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