3.should be 3 but i see on official website that they support mycelium and coinomi
What did you actually try to accomplish?
Did you try to access your coins because it somehow doesn't work with ledgers chrome application / electrum?
Or did you try to 'pair' it with your mobile wallet?
The nano s can be used with mycelium (as a hardware wallet).
What you actualy did when entering the seed is to expose your mnemonic seed.
If you intended to further use this seed, you might reconsider this. After you have gained access to your coins, the best would be to generate a new seed (reinitialize your nano s).
This seed should never be shared with any person/application.