How can i change to F2P mobile account if i have logged in PC version and my trial expired
?

Click "Account Info" on the Left

Yeah, and it says:
ACCOUNT STATUS:Trial
TIME SPENT ONLINE:0 days, 8:00:02
ACCOUNT EXPIRATION:-1 days, -1:-1:-2 In-game time

Computer Information
Operating System: Windows 98

Click Windows 98 and a list of Operating systems should appear
Find and click "Android"

Already did, also fill the hardware info below. And submit. Still no change.

An account created on the PC cannot currently be converted to a F2P account. The account must be created on a mobile device for that. You could also just get a Lite subscription for the same benefits as the F2P but with the added benefit of client flexibility.

Yeah i get a lite subscript last night. But logic should be, since all accounts are created on official site, if i ever logged on PC the account will switch to Trial mode and cannot get back to pure mobile mode.

Is it possible that we can change the account based verification to client based. It will be like if i get a subscript, i can play 1 month on PC. But even that expires i can still continue my progress on Mobile

Android accounts are not created on the website, they are created inside the Android client. But if you do want to change account type, submit a support ticket using the support link at the bottom of the left-hand menu.

You can log in from an account made on Android, subbed to lite, on PC. And then when the lite account expires, it becomes F2P (Andorid only) again. The only time it is not the case is if the account is created on the website, then it is classed as a PC trial/full account. But like I stated above, the devs can (and will) change the account type for you.

Interesting... I made an account on Android and it didn't ask me for a password or username. I just made a character name and that was it. EX:When I logged on to play I didn't have to go through a login at all. Later when I cleared the data for the app, everything was deleted (character gone). I wonder, does my character still exist somewhere on the server and if possible could I reclaim him?
If not that is fine... I like it without a login :] Just wondering though.

Yes, when an account is created on Android it creates a "quick" account, later on (after training I think) the game prompts you to link your account to an email address, and makes you create a password. (you can skip this step, but its obviously recommended not to, for obvious reasons)

If you lose the data before this step, the only way to get that account back is to submit a support ticket, the developers should be able to retrieve the account for you.

Thank you Mr. Yoda. How do I link the account if I skipped the email link when it asked the first time?
See you in game also :)

I'm not 100% sure where the option is, but it is in the options menu somewhere, it's been a while since I did it :)