Update for px5 MXC89L

[nikolayg1]

Hi all,
I'm looking for update for my android car unit

I'm have a firmware:
px5-userdebug 6.0.1 MXC89L user.hct.20180126.145004 test-keys
CPU 8 core 64bit coretex-A53 @ 1.5G
Memory 3984GB

Kernel Version:
3.10.0
rocky@hctr930 #1320

Model Number (800*480 0)

Andoird Version: 6.0.1

if someone can me attach a link to file download and instructions how to update', I'll be greatful.