a) Download chainminer master on your raspberry PI from github and unzip it
https://github.com/bfsb/chainminer/archive/master.zip
b) change line 6 in miner.h
1 #ifndef MINER_H
2 #define MINER_H
3 #include "handylib.h"
4
5 #define NDEBUG
6 #define VERSION 1
cd chainminer-master
make
cd ..
mv /opt/bitfury/chainminer /opt/bitfury/chainminer_v1_original
e) copy chainminer-master directory to /opt/bitfury/chainminer
cp -r chainminer-master /opt/bitfury/chainminer
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
What is the update getting you? Better stability? Better performance?
In my experience (v2 board - v1 should be similar), the chainminer update improved stability such that error rates went from 3-10% per chip (5-7% average, consisting mostly of HW, but a few miso or spi) to 0-3% per chip (1-2% average, virtually no spi/miso errors). this also allows a bit more room to overclock for better hashrate, on top of the 2-3GH reclaimed from removal of errors per card)