Re: Properties of Mycelium wallet [Seed recovery]

Are you trying recoverying the seed through this method Seedrecover Quick Start Guide

If you don't have one of the these below.

Quote from: https://github.com/gurnec/btcrecover/blob/master/docs/Seedrecover_Quick_Start_Guide.md

For Electrum (1.x or 2.x), a copy of your wallet file (a wallet file using Electrum 2.8's new full-file encryption won't work here), or
Your master public key (sometimes called an xpub), or
a receiving address that was generated by your wallet from your seed, along with a good estimate of how many addresses you created before the receiving address you'd like to use, or

It's a time consuming to guess your right addresses if you don't have the above you must follow the Recovery with an Address Database

Because without them it's impossible to recover the right seed.

Do you have any record of a transaction? Or maybe you have an old transaction in your mobile browser history?
Just check the possible place where you use your addresses like sending bitcoin to a friend then ask him to send your old transaction or maybe you have a history in some bitcoin gambling where you sent bitcoin from one of your address?