[Q] Stumped! Hitting a wall building kernel for T230NU (Galaxy Tab 4, 7")... topic

I'm running into a really annoying issue trying to compile a custom kernel from the Samsung source for my T230NU (Galaxy Tab 4, 7"), the first image I assembled flashed fine via Odin, but wouldn't boot. So I tried just unpacking the boot image, modifying build.prop and repacking it, but now it won't even flash! I get a FAIL error from Odin immediately after NAND Write Start.

Does anyone have experience modifying this kernel? Can you weigh in on which toolchain I need to use, or maybe have some scripts for packing and unpacking the boot image? Right now I'm using this: https://github.com/kumajaya/degas-mkbootimg which does seem to be working, besides the issues I'm having with boot and such.

[Q] Xt910 charges only through USB( not wall ) topic

As the title indicates it doesn't charge via wall, but usb charging works perfectly , even file trasnfer.

What I've tried so far:

Factory reset
New battery
Changed 3 chargers, 2 of them were original - they work on other phones
Clean the usb port on my phone

Also when I have it hooked on wall, one battery app I have shows that there is some usb connection on the phone, but it still won't charge. Any ideas? Running 4.1.2