Anonymous posted an answer for this Samsung U900 Soul Cellular Phone:
"PUT *2767*3855# IN YOUR PHONE AND IT WILL RESET YOUR PHONE AND ALL YOUR PASSWORDS"
Anonymous posted an answer for this O2 Samsung SGH-E250 Cellular Phone:
"TURN THE PHONE ON WITHOUT THE SIM. WHEN IT SAYS INSERT SIM PUT A DIFFERENT NETWORK SIM IN..."
Cell Phones 2 answers