Android 6.0 Tablet and TV (release candidate, maintained)

[Bluphire]

Below is my uEnv.txt. Note the bold section.

console=ttyS0,115200n8
selinux=permissive
enforcing=0
optargs=no_console_suspend
kernel_filename=kernel
initrd_filename=ramdisk.img
hardware=sun50iw1p1

# To use android recovery, uncomment:
# initrd_filename=ramdisk-recovery.img

# To enable LCD, uncomment:
# pine64_lcd=on

# Configure contiguous memory allocation
# This maybe required to be enlarged for 4K displays
cma=384M

# To change HDMI display mode, uncomment:
# disp_mode=480i
# disp_mode=576i
# disp_mode=480p
# disp_mode=576p
# disp_mode=720p50
# disp_mode=720p60
# disp_mode=1080i50
# disp_mode=1080i60
# disp_mode=1080p24
# disp_mode=1080p50
 disp_mode=1080p60
# disp_mode=2160p30
# disp_mode=2160p25
# disp_mode=2160p24

# To enable DVI compatibilty, uncomment:
# disp_dvi_compat=on

# To enable CSI camera, uncomment:
# camera_type=s5k4ec
# camera_type=ov5640

# Configure ethernet speed
eth0_speed=auto
# eth0_speed=1000
# eth0_speed=100
# eth0_speed=10

ETA:
Your's appears correct, I do not know why your's is doing what its doing. I had the same problem as you before i realized the space was missing. I added the space and it worked just fine.

ETA 2:

Im using TextEdit on OSx, never used windows for this.