Yes, you may do bitcoin Mining with an entry-level laptop. Bitcoin mining with a laptop might not necessarily be profitable, but it is plausible meaning it can be done. Bitcoin mining can be done with computers as simple as a raspberry pi but it most probably isn’t going to be profitable. Here are a couple of Videos that will help you get a head start with bitcoin mining on any computer:
Mining bitcoin on a phone or an entry-level laptop isn’t going to be profitable. The reason why Mining bitcoin on a phone or an entry-level laptop isn’t going to be profitable is because they do not have the required computational power to compete with the rest of the people that are mining.
In a pool where the reward is divided among how much you contributed to mining a block, your contribution is going to end up being very less and hence so is your reward.
When your electricity and upkeep costs are higher than how much ever you’re making from mining, you’ll be mining alright, but you’ll be mining at a loss nevertheless.