Maybe phoneum and pi network? These are the most disgusting crypto projects I've ever seen oh by the way with PoW algorithm that only works on mobile phone where as should be called cloud mining on phone or even daily coin distribution, avoid them at all costs
All those seem like scams or pseudo-mining projects to me. What noobs forget about such "mining" projects is that they invest in a lot of resources like time, power cost and internet data cost.
If I were OP, I would just sell off the old phone and use the money to either buy BTC or a few good altcoins during the dip and HODL. Mining the pi networks is a waste of resources.