Hi guys, For years i have been repairing computers and laptops for customers and now with what i feel is a dying industry i want to move onto phone repairs. Part and parcel of this is going to include a lot of trial and error so i am thinking of buying broken / damaged iPhone from eBay to get my skills up on changing screens, parts, logic boards etc. The reason for my post today is that i was wondering if i was to purchase one that in the description says iCloud Activation Lock or similar where no one can get into it, would replacing the logic board with a new one sort this? Lastly, do you think there's a good business in upgrading customers iPhones internal storage? I've seen a guide on the internet about upgrading from 16GB to 128GB which i'm capable of doing but before i wasted my time and money wanted to get an insight first. Many thanks.