Database Develop

[Q] Double Tap to Wake and OTA

Is there any way to achieve double tap to wake on my Nexus 6 and still be able to receive OTA updates?

Probably not, as you have to make a change to a system file in order to achieve it.

I so want double tap, but I don't want to have to give up OTA.

If you're expecting lg style dttw, you're going to be dissapointed
Sent from my Nexus 6 using XDA Free mobile app

No expectations per se, just looking to have access to the original functionality that was pulled, and still have OTA.

Karine said:
I so want double tap, but I don't want to have to give up OTA.
Click to expand...
Click to collapse
Life lesson. You can't always have everything you want. You have to choose based on personal preference.
I'd rather have the ability to use DT2W multiple times a day, than the convenience of an OTA that may happen once every few months.

PaisanNYC said:
Life lesson. You can't always have everything you want. You have to choose based on personal preference.
I'd rather have the ability to use DT2W multiple times a day, than the convenience of an OTA that may happen once every few months.
Click to expand...
Click to collapse
If I go with DT2W is there another way for me to get what I would have otherwise received via OTA?

Karine said:
If I go with DT2W is there another way for me to get what I would have otherwise received via OTA?
Click to expand...
Click to collapse
Absolutely. Just flash the stock rom. It always gets posted here when the OTA is released:
https://developers.google.com/android/nexus/images

PaisanNYC said:
Absolutely. Just flash the stock rom. It always gets posted here when the OTA is released:
https://developers.google.com/android/nexus/images
Click to expand...
Click to collapse
Great link; thanks! Do you yourself follow the instructions on the link you provided to flash? And, how have you achieved DT2W?

I believe dt2w is enabled at the kernel level. When an ota comes out i just fastboot flash the bootloader, system, and radio and its like you got the OTA just faster

mymusicathome said:
I believe dt2w is enabled at the kernel level. When an ota comes out i just fastboot flash the bootloader, system, and radio and its like you got the OTA just faster
Click to expand...
Click to collapse
It can be kernel or ROM. Depends which implementation.

mymusicathome said:
I believe dt2w is enabled at the kernel level. When an ota comes out i just fastboot flash the bootloader, system, and radio and its like you got the OTA just faster
Click to expand...
Click to collapse
I'm afraid I don't understand.

Karine said:
I'm afraid I don't understand.
Click to expand...
Click to collapse
The link from Google will wipe your data. Its a full ROM flash.
Actually, you don't need to flash all that. You can extract the full ROM and using fastboot, only flash the system.img (ROM) and boot.img (kernel) to update.
Read about fastboot here. http://forum.xda-developers.com/showthread.php?t=3006500

rootSU said:
It can be kernel or ROM. Depends which implementation.
Click to expand...
Click to collapse
I'm afraid I don't understand.

Karine said:
I'm afraid I don't understand.
Click to expand...
Click to collapse
Its not relevant. We were talking about double tap 2 wake..

rootSU said:
The link from Google will wipe your data. Its a full ROM flash.
Actually, you don't need to flash all that. You can extract the full ROM and using fastboot, only flash the system.img (ROM) and boot.img (kernel) to update.
Read about fastboot here. http://forum.xda-developers.com/showthread.php?t=3006500
Click to expand...
Click to collapse
rootSU, many thanks for all of the thoughtful responses and the great links. You've given me a level of comfort that rooting to get DT2W is the right choice for me. In the All-In-One link inside of the Fastboot link you provided, the instructions state that I can stop at a certain point if I'm not looking to install a custom rom, etc. I'm not looking to install a custom rom; just looking to root to ultimately get DT2W. Am I correct that I don't need to install a custom rom to get DT2W?
Do you personally use DT2W, and if so, how did you achieve it after rooting?
Is there a link or set of instructions available for the rom extraction method you referenced for manually updating my device in lieu of an OTA?

Karine said:
rootSU, many thanks for all of the thoughtful responses and the great links. You've given me a level of comfort that rooting to get DT2W is the right choice for me. In the All-In-One link inside of the Fastboot link you provided, the instructions state that I can stop at a certain point if I'm not looking to install a custom rom, etc. I'm not looking to install a custom rom; just looking to root to ultimately get DT2W. Am I correct that I don't need to install a custom rom to get DT2W?
Do you personally use DT2W, and if so, how did you achieve it after rooting?
Is there a link or set of instructions available for the rom extraction method you referenced for manually updating my device in lieu of an OTA?
Click to expand...
Click to collapse
No problem @Karine.
I'll outline the steps a little.
- unlock bootloader (this will wipe device]
- fastboot flash recovery (TWRP]
- put latest SuperSU zip on your sdcard memory
- flash zip via recovery
To get dt2wake, there are 2 ways.
1) use Google implementation.
Google left this out however someone has managed to recompile the .so file. Many custom ROMs include this. You could also replace the file yourself in stock ROM BUT in my opinion its not as good as method 2 below
2) use custom kernel with dt2wake. This is better as it works more often. Method 1 sometimes just doesn't work.
Personally I use method 2 with elementalx kernel. Like root, it is a zip that you flash from recovery.
Now assuming you are going with method 2, the way to update ROM is below...
- Download full factory image from Google
- extract the zip (twice) to find the system.img
- fastboot flash the system.img only.
- flash the SuperSU zip in recovery to re-root
This should be everything you need.

rootSU said:
The link from Google will wipe your data. Its a full ROM flash.
Actually, you don't need to flash all that. You can extract the full ROM and using fastboot, only flash the system.img (ROM) and boot.img (kernel) to update.
Read about fastboot here. http://forum.xda-developers.com/showthread.php?t=3006500
Click to expand...
Click to collapse
rootSU said:
No problem @Karine.
I'll outline the steps a little.
- unlock bootloader (this will wipe device]
- fastboot flash recovery (TWRP]
- put latest SuperSU zip on your sdcard memory
- flash zip via recovery
To get dt2wake, there are 2 ways.
1) use Google implementation.
Google left this out however someone has managed to recompile the .so file. Many custom ROMs include this. You could also replace the file yourself in stock ROM BUT in my opinion its not as good as method 2 below
2) use custom kernel with dt2wake. This is better as it works more often. Method 1 sometimes just doesn't work.
Personally I use method 2 with elementalx kernel. Like root, it is a zip that you flash from recovery.
Now assuming you are going with method 2, the way to update ROM is below...
- Download full factory image from Google
- extract the zip (twice) to find the system.img
- fastboot flash the system.img only.
- flash the SuperSU zip in recovery to re-root
This should be everything you need.
Click to expand...
Click to collapse
The Nexus 6 doesn't have an external sdcard slot, so when referencing sdcard the reference is to the internal/built-in sdcard, correct? I recall that the references are used somewhat interchangeably, and don't want to make any assumptions.
Will the elementalx custom kernel change my stock Android experience in any way? And, where do I find that kernel?
Would updating the rom manually in lieu of an OTA in the manner you described wipe all of my data?

Karine said:
The Nexus 6 doesn't have an external sdcard slot, so when referencing sdcard the reference is to the internal/built-in sdcard, correct? I recall that the references are used somewhat interchangeably, and don't want to make any assumptions.
Will the elementalx custom kernel change my stock Android experience in any way? And, where do I find that kernel?
Would updating the rom manually in lieu of an OTA in the manner you described wipe all of my data?
Click to expand...
Click to collapse
1. All android phones have /sdcard be it a removable media card or a partition on the internal memory. Regardless of which one the device has, when We say sdcard - we always mean the same thing.
2. It will be quicker. Its in the original development section
3. No.

I may have just found the perfect solution for me, that gives me the ability to turn on the screen without having to press the power button, and without having to root and give up OTA... Wakeup Touch... https://play.google.com/store/apps/details?id=com.wolandsoft.wtlf

[RESTORE] Factory Restore 24A zip

Here's a fast way to do a full factory restore so you can take an ota without erasing your internal storage.
This will not however remove the rooted message for a warrant claim.
Check MD5's before flashing.
Step 1: Flash Flash KK24a System Restore 1st.
Step 2: Flash KK24a Bootstack Restore 2nd.
Warning: You will loose your custom recovery after reboot.
Download: KK24A System Restore
https://mega.co.nz/#!kEljCSTY!qPS7oSXokZRg3j60FNzgmeA7sbpda8IMB-4uFTJuMxI
MD5: d3926bcb4b2938e33020c1e8b540414b
Download: KK24A Bootstack Restore
https://mega.co.nz/#!0E00kb6K!wH1bJHbFuqTQpZo2QKLeBrpf21slTgnOSMstivVS7Qs
MD5: dce61ff31f060164bb89962ffe8a1b8c

Reserved....
Can't do 27a restore as System.img is too big for a zip to be flashed. Its over 2.2gb. Needs to be under 2.1gb for custom recovery to flash it. I can't get it compressed under 2.1gb.

This is cool thanks!

Way cool !! Thanks!

Can i use this to upgrade from 4.2.2 ?

berz said:
Can i use this to upgrade from 4.2.2 ?
Click to expand...
Click to collapse
Yes.....

@MicroMod777, just to make sure before I proceed, I lose my custom recovery (in op), but I'm assuming I maintain root? I've read from others root is kept through 27a, and that Freedom Tools also restores recovery. Am I correct on all? Thank you!

njstein said:
@MicroMod777, just to make sure before I proceed, I lose my custom recovery (in op), but I'm assuming I maintain root? I've read from others root is kept through 27a, and that Freedom Tools also restores recovery. Am I correct on all? Thank you!
Click to expand...
Click to collapse
You'll loose root, but root detection is still there. You can use my freedom tools to get custom recovery on 27a.

You'll loose root, but root detection is still there. You can use my freedom tools to get custom recovery on 27a
Click to expand...
Click to collapse
Excellent, thank @MicroMod777. One more question; after I flash this, I'm unrooted, no custom recovery. If I root the 24a using ioroot25 (but not a custom recovery), will the root maintain through the updates to 27A? I recall reading somewhere on here that it did. Thanks for your work!!

njstein said:
Excellent, thank @MicroMod777. One more question; after I flash this, I'm unrooted, no custom recovery. If I root the 24a using ioroot25 (but not a custom recovery), will the root maintain through the updates to 27A? I recall reading somewhere on here that it did. Thanks for your work!!
Click to expand...
Click to collapse
Not really sure, but you can always use Stump Root on 27A. Can take up to 10 minutes for it to root through brute force:
http://forum.xda-developers.com/lg-g3/orig-development/root-stump-root-lg-g3-sprint-verizon-t2850906

I am pretty sure root maintains with the OTA 27A.

Awesome. This is great for when I gotta go to stock real quick for some fix or something and will real helpful once lollipop is out
Sent from my VS980 4G

hi... noob question... sry... how can I install this zip... on my custom recovery?!? ... thanks for any answer

kuribox said:
hi... noob question... sry... how can I install this zip... on my custom recovery?!? ... thanks for any answer
Click to expand...
Click to collapse
noob answer.... Read the Original Post other wise known as the OP.
And if that doesnt work then read it 15 times more... [emoji41]
Sent from my VS980 4G

Can i use this to downgrade from lollipop ?

hoangan12 said:
Can i use this to downgrade from lollipop ?
Click to expand...
Click to collapse
Yes, but why?

MicroMod777 said:
Yes, but why?
Click to expand...
Click to collapse
my phone has problems with touch. very difficult to turn the power button, many touch up
to turn on the screen. flash kdz and tot file failed >"<

MicroMod777 said:
Reserved....
Can't do 27a restore as System.img is too big for a zip to be flashed. Its over 2.2gb. Needs to be under 2.1gb for custom recovery to flash it. I can't get it compressed under 2.1gb.
Click to expand...
Click to collapse
Looks like they may have patched that in twrp recently.
https://github.com/omnirom/android_bootable_recovery/commit/78ab0c5807c17e343cc4fa9af86ea2d787e0e047
Though this could also just be for backups over 2gb... But they split those anyway.

Yoinx said:
Looks like they may have patched that in twrp recently.
https://github.com/omnirom/android_bootable_recovery/commit/78ab0c5807c17e343cc4fa9af86ea2d787e0e047
Though this could also just be for backups over 2gb... But they split those anyway.
Click to expand...
Click to collapse
Now using zerofree in linux to fix that problem.

MicroMod777 said:
Now using zerofree in linux to fix that problem.
Click to expand...
Click to collapse
I haven't had to use it on my LP system images. I used 7zip to compress one with zerofree, the other without zerofree, and the difference was around 8MB. I'm assuming LG didn't add too much junk info. this time around.

Double tap to wake

I just found out that you can enable that feature on Nexus 6 but I want to do it without root.
So I found this: http://forum.xda-developers.com/nexus-6/development/compiled-power-shamu-to-enable-double-t2971463
but couldn't figure out how to get it work. I know how to unlock the bootloader but how can I change system files without root?
can someone please explain it to me (yes I'm pretty noob)
thanks

By installing a custom recovery, TWRP in this case. Then either using ADB from it or the built in file manager within TWRP.

cupfulloflol said:
By installing a custom recovery, TWRP in this case. Then either using ADB from it or the built in file manager within TWRP.
Click to expand...
Click to collapse
OK, another question
can I delete the custom recovery after I do it or I need to do factory reset?

Tlazipex said:
OK, another question
can I delete the custom recovery after I do it or I need to do factory reset?
Click to expand...
Click to collapse
Probably could, but I wouldn't recommend it. Reason being, if you mod system files and something goes wrong, without custom recovery and a backup, you may end up bricked.

1. The google double tap is extremely unreliable and annoying
2. You'll never get an OTA again.

Evolution_Tech said:
Probably could, but I wouldn't recommend it. Reason being, if you mod system files and something goes wrong, without custom recovery and a backup, you may end up bricked.
Click to expand...
Click to collapse
danarama said:
1. The google double tap is extremely unreliable and annoying
2. You'll never get an OTA again.
Click to expand...
Click to collapse
Ok thanks for the help

Need the data/data/com.android.nfc folder, sub folder, contents

xx

toastgodsupreme said:
Did a stupid thing, removed NFC via titanium backup. Restore borks it, probably doesn't fix SE status, or owner, or permissions, or SOMETHING. Or the symbolic link lib in the sub directory is broken upon restore. Don't know.
So how do I restore just this folder and it's contents to how it should be, symlinks, permissions, ownership, etc and all?
Lollipop 5.1.1
Click to expand...
Click to collapse
Fastboot flash the system.img.

cam30era said:
Fastboot flash the system.img.
Click to expand...
Click to collapse
probably be your safest course of action. Might as well get the newest marshmallow one while you're at it. That data folder should rebuild itself when you get the system app properly reinstalled.
If you do upgrade to marshmallow don't forget to flash the new bootloader, radio, and boot.img too.

cam30era said:
Fastboot flash the system.img.
Click to expand...
Click to collapse
Where would I grab that at?

toastgodsupreme said:
Where would I grab that at?
Click to expand...
Click to collapse
Here >https://developers.google.com/android/nexus/images

cam30era said:
Here >https://developers.google.com/android/nexus/images
Click to expand...
Click to collapse
Funny thing, didn't know TWRP could restore specific parts of a nandroid backup, so while I was heading in to make another backup before doing this I saw that it was asking my for check boxes on what to back up, that prompted me to go into the restore backup area and lo and behold, it prompts what to restore... so i just restored system, now I have NFC functional.
After SO much time wasted on extracting stuff all i had to do was remember to look at the TWRP restore function... UGH. Thanks anyway, everything is working now.

@toastgodsupreme,
You didn't waste your time. Consider it a learning experience

flash stock. via twrp?

Hey guys, I was hoping to flash a pure stock 7.x preferably via twrp.
A buddy of mine a year ago and me to flash pure Nexus for him but now needs a stock phone for business security net purposes.
Is there a link for this? I've searched and have come up short.
I'm guessing it'll have to update bootloader, radio and kernel as well?
I know how to do this via command line. Was really hoping for a way to do it on the fly since this is not my phone and taking a PC for a TWRP ready device is a hassle.

mrkhigh said:
Hey guys, I was hoping to flash a pure stock 7.x preferably via twrp.
A buddy of mine a year ago and me to flash pure Nexus for him but now needs a stock phone for business security net purposes.
Is there a link for this? I've searched and have come up short.
I'm guessing it'll have to update bootloader, radio and kernel as well?
I know how to do this via command line. Was really hoping for a way to do it on the fly since this is not my phone and taking a PC for a TWRP ready device is a hassle.
Click to expand...
Click to collapse
http://forum.xda-developers.com/nexus-6/general/guide-flash-factory-images-nexus-6shamu-t2954008

Pkt_Lnt said:
http://forum.xda-developers.com/nexus-6/general/guide-flash-factory-images-nexus-6shamu-t2954008
Click to expand...
Click to collapse
Thanks for the links,
But I was really hoping TWRP flash able.
Does TWRP allow flashing these images?

mrkhigh said:
Thanks for the links,
But I was really hoping TWRP flash able.
Does TWRP allow flashing these images?
Click to expand...
Click to collapse
Google search says that TWRP can not flash factory images.
Check the TWRP FAQ if you'd like.
http://teamw.in/FAQ/

Pkt_Lnt said:
Google search says that TWRP can not flash factory images.
Check the TWRP FAQ if you'd like.
http://teamw.in/FAQ/
Click to expand...
Click to collapse
That's what I thought.
Thanks for the links,
But I'm still looking for TWRP flashable if anyone knows of one?
This should be a relatively easy thing so I'm surprised it doesn't exist

there is no reason for it to HAVE to be twrp flashable, just google for "NEXUS ROOT TOOLKIT" you will see on there restore to stock, and re-lock boot-loader, not positive but i think twrp cant flash stock unrooted images, i could be wrong

leo5111 said:
there is no reason for it to HAVE to be twrp flashable, just google for "NEXUS ROOT TOOLKIT" you will see on there restore to stock, and re-lock boot-loader, not positive but i think twrp cant flash stock unrooted images, i could be wrong
Click to expand...
Click to collapse
TWRP can flash a stock image if someone creates it. Unless there is something odd about the nexus, but I doubt that. The only thing that shouldn't be flashed stock would be recovery.
I don't think I need to use some toolkit... adb and fastboot commands are simple enough.
I was hoping to avoid needing a PC at another persons house, I mean that is kinda the point of twrp.
I am surprised this doesn't exist. It does for every other device I've owned. It's honestly just a wiped clean, twrp backup of a stock device with TWRP installed.
If I owned the device I would make it for you guys. It seems something that is lacking that is really handy.
I guess I'll round up a laptop. Thanks for the links and suggestions.

Google has done that for you already. Just unpack the archive you choose and the four images are in there.
https://developers.google.com/android/images

I thought we've already decided I cannot flash these images with TWRP....

mrkhigh said:
I thought we've already decided I cannot flash these images with TWRP....
Click to expand...
Click to collapse
http://www.droidviews.com/now-flash-image-files-using-twrp-2-8-4-0/
Different Google search gave this. I can find nothing else on TWRP site or G+

Appears you can also use FlashFire.
Thanks for the help.

OP could flash one of the stock lite ROMs in the development forum and get the TWRP-flashable stock ROM he's looking for. Danvdh and tupac4u both offer one that is nothing more a debloated stock ROM.

TWRP is able to flash system images from 3.0.2 and on. Just unpack the archive and select install img. Remember to flash stock kernel and newest radio and bootloader too (bare in mind that flashable bootloader is harder to find. You might have to find older one and update the files inside on your own). Afterwards flash stock recovery and lock bootloader with a zip. Now you can just reboot it. It's not that hard.

Lawstorant said:
....bare in mind that flashable bootloader is harder to find....
Click to expand...
Click to collapse
For Nexus 6 https://forum.xda-developers.com/showthread.php?p=59728002/

Thank you.
I went ahead and simply flashed him 100% stock via flash and fastboot.

This is probably resolved now, just adding info though. I had flashed stock 7.1.1 zip downloaded from google via twrp 3.0.3.0. It removed twrp itself too and I was back on stock.

mrkhigh said:
I am surprised this doesn't exist. It does for every other device I've owned. It's honestly just a wiped clean, twrp backup of a stock device with TWRP installed.
I guess I'll round up a laptop. Thanks for the links and suggestions.
Click to expand...
Click to collapse
Try the app FlashFire.