...one day I lost my device and that's how I lost the seed phase and the wallet. Am imagining if I could have recover my wallet today, I will be a big boy with fat wallet. Do you think another person have access to it?
If you don't have a seed phrase or private key, then you can't restore or access the wallet, and neither can anyone else. especially at that time in 2011, maybe the people who found it didn't care about the contents, they just sold it right away. And maybe if what happens next is that the device has been restarted to the initial factory settings and eliminated all applications. Try it, if you still have the wallet address, check whether the transfer of Bitcoin assets from the wallet.