Bootloop if low power supply!!!

[brunogm0]

Hi, running RK3066 from a MK819: 1080p-BT-WF-1608-400-600 Sometimes it stayed boot looping the logo. CPU temps were 72C;

Then i used my laptop as power source and it succesfully booted. No problems whats so ever. (supply at 4.6A 5.08v). So maybe a undervolt is the key to stability in these devices, as my other supply could only output 1.7A 5.3V; and for sure there were bootloops!

Stock kernel from 1080p-KK-4.4.2-RK3066-V1.1.img also has problems.