For now to get ROI from any miner almost impossible.
To get it needs a lot of work.
Actually I got ROI but without some things.... Not so trivial.
First of all needs overclocking coz for now from 1 Th/s reward approx. 0.0011BTC per block !!!
(I mean regular terraminer 1.6 Th/s without modification).Thats sucks.
To crack firmware neeeds to have technical knoweledge. I mean I2C bus, embedded devices (linux), PLL and so 0n and so on.....
Second- programming. C language, debugging emulators and so on and so on........
Next problem is cooling. Except winter coz in that case miner working as home heater
After such modification I have right now 0.002BTC per block but 4 month ago was 0.0072 per block without any mods.
Even all that is not enough - should be cheap (means "free") electricity.
Conclusion - Just for fun.
About scammers. I will put out one of them. I will but here coming a lot of such fuckers because swamp.
Why swamp? OK. I found something very bad. Explaining- what the fucking things- same programmer writing
soft for legit sites and for scammers (That's not me.Im' old and have another principles too). Believe me I don't lie.
Where is ethics? No ethics coz money.
As I told I will put out one of scammers (nice nightmare photos also will be as evidence
) .
I will. Let's he crying.... but pupils... be real!
There was a thousands of times. Don't spend more then you can loose!
Regards.