[Kernel] [Compilation] [Boot] SM-N910F

Hi,

I downloaded the SM-N910F kernel from samsung compiled and burned it with Heimdall. It works fine.
The problem I am facing is when I add some code into the kernel. It won't boot (returns do DOWNLOAD mode screen), error message "could not do normal boot".
Note: I have tried burning my boot.img both with Heimdall (linux) and Odin (windows), and get the same results, i.e. unmodfied kernel works fine, modified -- fails.

It seems to be a zImage size issue.
I tested this by only adding lots of seq_print(m ,"something somthing ....") in print_binder_transaction() (drivers/stagin/android/binder.c). just to make the zImage bigger (unmodified zImage size: 9792000 bytes, bloated zImage 9799072 bytes, only ~7Kb more).

I checked the with busybox fdisk the BOOT partition size, its 17MB.
I pulled the boot.img with dd from the device and used "abootimg -u boot.img -k ../arch/arm/boot/zImage" to update it with my compiled zImage.

any ideas?
missing info?

Thanks,
Daniel.

my note 4 SM-N910F dm-verity verification failed showing plzzz help me

When I go to my recovery, I see on the bottom of the screen: dm-verity verificatoin failed. Plzzz help me :(

my note 4 SM-N910F dm-verity verification failed showing plzzz help me

my note 4 SM-N910F dm-verity verification failed showing plzzz help me:confused:

Note 4 [SM-N910F] : Considering moving on, lag and poor experience....HELP!!!

Hi Everyone,
I'll keep this short...I've had my Note 4 for about 10 months now. Generally I have to say I feel that I've been living in denial, I love the device from a HW perspective and also the S Pen features however the SW is just too damn clunky, laggy and slow. Right now there is 1 to 2 second delay before it responds to any gestures + this can be up to 5 seconds when launching the camera for example. Also when playing music via Bluetooth it is very choppy and cuts in and out of the track being played (I have tried this on more than 1 Bluetooth device and its the same). When updating to Lollipop it seems that the experience hasn't got better, infact probably worse. I've loaded another launcher (Nova launcher) to see if the problem was touchwiz however its still the same. Lastly I've reset the device to factory 3 times now, which helps however it doesn't take long for it to get back to its usual clunky self. With all of this in mind, I am seriously considering moving on to another premium device however I wanted to throw this out there to you all to see if there was anyone else who had experienced the same issues and even better had a resolution.

Should I root the device and install another rom or simply move on???

Any help is much appreciated in advance.

Thanks,
OB