Serious Error. Stop Charging. Please Help!!

[mohdumer]

"Serious error. Stop charging. Stop using your phone and contact a sony ericsson call center".

I keep getting this message after anout one minute after I turn the phone on.
At first it came when I was charging the phone, so I read on the internet that it was propably the battery.
So I changed the battery, and everything was fine, and I could recharge the phone.
But it only worked one time. I tried to charge it some hours ago, and I got the same message again. So this time I reflashed the phone. But now I get this message when I'm not even charging the phone. Now I can't even get through the tutorial phase before I get this message. I've reflashed the phone several times, but I just get the same message.

What should I do?

Seems A Charger Fault. Replace Your Charge And If Doesnt Works Then One Post Above.

[oleq83]

But is this covered by the warranty? I have flashed the phone, and patch unloced it, but is it possible to remove any traces of me messing with it?
I don't wanna spend a lot of money on getting it fixed.

I have tried with different chargers, and as I mentioned, I get the message even when the charger is not connected to the phone.