Hi all, I have similar issue with DS18B20 on Orange Pi Zero (Armbian_5.24_Orangepizero_Debian_jessie_3.4.113)
I connect sensor (data PA10(pin 26), 3,3V (pin 1), GND (pin 6), Enable /etc/modules (w1-sunxi, w1-gpio, w1-therm), and I can see SN of sensor. But the sensor returns the nonsensical values. All returns values are same.
Have you some idea to solve this?
Many thanks Radim.