These are all set up and ready to go mining. Most of them have the backs removed. Some of the backs are missing completely. I will try to match back two phones. Also, some of the Sim card trays are missing as well. Most do have SIM card trays but I will make sure all orders have at least 1 SIM card tray in case they need to be reactivated at some point. I will leave these set up and ready to mine. All you have to do is change your wallet address on each phone and you are good to go. If you reset the factory settings it may go to the carrier lock screen, which I’ve heard there’s a way to get around. I couldn’t figure it out, I bought all the phones in a short period of time and paid for the cheapest prepaid plan possible and switched the Sim cards out and activated each phone one by one with the same Sim card. It worked just fine if you think about it these these phones do about 4-6 mh/s running all eight cores I dialed them all back to six core because I was having overheating issues and that seem to somewhat alleviate the problem. They were still running hot, but they weren’t crashing and refusing to charge rigged up the rack shown in the picture with computer fans blowing under each row upward and now they run 30°C pretty well constantly. I never did bump it back up to eight because it’s a dual quad core system and the second set of course doesn’t really make that big of a difference so losing two cores didn’t really lose that much of a hash rate, but I would think it would run just fine now I’ve just never tested it out. The rack is not included, but I could provide the buyer information where to get the supplies to build their own. Any questions. Feel free to ask thank you for looking.