So you opened a new thread a year back and then never said a thing but waited another year to post some silly steps!
Let me correct you here, I'm only talking about US credit system
Below is what you proposed and my correction is in red color:
Step 1. Get MULTIPLE cards, only use 1.= When someone has a score that is less than 600, he will have a hard time getting credit cards, there is a reason why his score is low, if he already has CC or he has collections that are reported to the credit agencies then there is nothing going to help the score, he needs to fix the collections, remove them from his reports no matter what and there is a way to do so, not 100% proof but it can work, I'm not posting this here now, if someone has low credit score because he never had CC then he can start with secure credit cards, I suggest credit one, one card every 2-3 months, 3 cards max, use only 7% or less of your total balance, pay them in full, USE THEM ALL, the fact that if you don't use a credit card the issuing bank will close it after a while and you said use only one, that's a big mistake, use all of them, at just 7% or less utilization, pay them off 7-10 days BEFORE the due date, never pay anything near on on the due date.
Step 2. Use 6% - 10% of the cards limit. 7% is optimal
Step 3. Try to get total available credit to 10k. That's will be hard at the first year, let the secure cards graduate to none secure. Not sure where did you get the 10K limit, but it would not hurt, You can get $600-800 from credit one, subscribe to Experian (monthly, yes pay $24+ a month, this will help a lot), they will suggest few cards for you, take credit one first month, then take Ollo 6-8 weeks later, they may give you $2000 none secure, only after you get Credit One)
Step 4. If your credit already sucks and can’t get approved for a normal credit card, get a secured discover card
($200 deposit that they refund to you after 6 months): Credit One is the easiest one. $200 is very low, get $600-800, Credit one may give you none secure CC for $600-800, thats if you don't have collections on your report.
Step 5. Never close a card, especially your oldest one. Correct
Step 6. Don’t apply for cards all the time, the longer since you’ve applied for credit the higher your score will be.
The perfect combination is to have 3 cc and two loans, read below on the loans
Step 7. Try to delete negative marks on your report. Dispute inconsistencies, incorrect information, fraudulent accounts and more. Everyone knows this! but how to delete them? that's another LOOOONG thread.
I will also add: get loans, secured shared loans, make sure they will not report to the credit agencies as secure, the best way to do it is open a regular saving account with Pen Fed bank (mot of them in the east coast of the US), open like $1000 saving account and tell them you want it for shared secured loan, this is very important, they may open a secured shared loan for you the same day or you have to wait 30 days, both are fine, the secured loan is for 24 month, let them take the monthly payment automatically so you are never late.
You may open another secure shared loan with some other union banks, but I'm not sure which one will not report it as a secured, I know the above mentioned bank will not report it, open the 2nd shared secured loan 2 month or 3 months after first one.
3 credit cards, 2 small loans, try to avoid credit inquiries, if you get the credit cards from the ones suggsted by Experian, theywill only report soft not hard inquires.