Is there anyone who has used a cell phone to mine one of the cpu mining chains?
Single core processor? What is it? A Google G1?
Some advice. Do not do any mining on a phone, tablet or laptop. They always cut corners on thermal dissipation (they usually have to for size constraints and often to cut $ costs). They just will not survive sustained 100% CPU or GPU activity for any reasonable length of time. The only exception would be maybe an old phone (not single core) - you could use 1 of the cores to keep a blockchain alive that you are rescuing from abandonment or a new one that isn't mined in the wild yet.