Hi guys and girls,

DISCLAMER
Use of this custom firmware is on your own risk.
Make sure to fill out your own pool information after installation of the image, and check it at the pool.


My miner is currently running overvolted on 1380MHz at about 17.4 Mhash/s/board, with about .40% HW errors at a stable temperature of +/- 36 Degrees Celcius (mind that I have a custom casing for better cooling, and heatsinks on the Voltage regulators).

An instruction on how to 'burn' the image to the SD card: http://elinux.org/RPi_Easy_SD_Card_Setup

------Version 2.0-------
New download link for the image 2.0 (600Mb): https://mega.nz/#!XB0AhaBC!IjkpJvS36O29AfOKc_jR9aezdH5yZnHMiGY5mIGyypk

------Version 3.0------
Download link for image 3.0 with Extranonce support: https://mega.nz/#!KZFgnTiZ!oSENaKhSdJiIkzad9kdH3I7eMyqNfbUzVSnyxkrsPgw

'DIVICE INITIAL DIFF' goes up to 4096 now.

NOTE: poolsettings; cgminer -o stratum+tcp://stratum.nicehash.com:3333#xnsub -u enterYourBTCaddress -p x

You need 7zip to extract it. http://www.7-zip.org/

------Version 3.1 ------

Rar file with the cgminer where the pool switching parameter has been set to 1 minute instead of 5, and the correct index file (made some mistakes in the previous versions with the difficulty setting and some obsolete options have been removed). Also all the stratum code of cgminer 4.9.1 has been implemented.

https://mega.nz/#!rUETAYaK!BMTxVusrO5rnZK5eYbDeS7XcFdYV4MyZGBn0BCatFOg

Or the complete image for plug and play operation:
https://mega.nz/#!WcdVwJBY!FjieYOsePmkStsygU_l7vqNUiCdEvuifOwgT7Jv5jlU

------Version 4.0 -------
Added underclock options of 500, 600, 700, 800, 900 and 1000 MHz to the software. Available options are: 500, 600, 700, 800, 900, 1000, 1100, 1200, 1280, 1300, 1320, 1340, 1360, 1380, 1400 MHz

https://mega.nz/#!OR03BIqA!lT3Gu6F0CL3i5ll0yl3SS2pn78NVpgZcJVITEnAyW9E

This version seems to have some issues with pool switching with some users. I use miningrigrentals as my first pool to solve this problem.

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------Version 5.0 -------
This version should work on the newer A2's as well. It takes up to 12 chips, so even the more exotic A2 versions should work on it.
Clock options are: 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1280, 1300, 1320, 1340, 1360, 1380, 1400, 1420, 1440, 1460, 1480, 1500.
Default clock value has been set to 1200. Note that overclocking your A2 requires Voltmodding.

https://mega.nz/#!rIdCwaYI!eh55V6G3eAWILmRJbXZA__gzSQcsBePByxpIqEr4cyU

Note that the default frontend is set-up for 6 chip blades, meaning that the MH/s values and so on. I will upload other versions of the frontend later that you can manually replace.

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------Experimental image New A2MINI Terminator-------
Download link for the A2MINI Terminator image 2.1 (600Mb): https://mega.nz/#!GEt2xLzR!KfD3SRoHJPX6IB56HTdG9LWxiu49OyqustWR5F_wmzQ

You need 7zip to extract it. http://www.7-zip.org/

NOTE: Have no new A2 myself, received one log from user suggesting the reset command is not returned and thus the miner does not start mining. Might be an incident. If you try the image please report if it works or not.

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Log in to images using putty and the following credentials:

Username: pi
Password: innosilicon

Instruction video's:
How to SSH into the Innosilicon A2
How to install SD-card and set-up pools

VOLTAGE MOD YOUR BOARD (at your own risk of course):
https://bitcointalk.org/index.php?topic=672969.msg10374958#msg10374958

(IF ANYONE HAS A BROKEN BLADE AND WOULD LIKE TO DONATE THAT TO ME, OR LOOSE CHIP(S), PLEASE LET ME KNOW)


Please donate to 1FiHCFcP4ovbV89nGhYEMWXSZsWnGUASSe if you like my work and the effort I put into this.