How can I unlock my phone, it's a a887 Samsung and I forgot my pass code. It's asking for phone lock code and will only make sos calls?

Unlocking an a887 Samsung is possible, here are the steps you need to follow to unlock your phone without the passcode:

1. Get your IMEI number (press *#06#
   
2. Use your IMEI number to request a lock code from the carrier, there are also services online (vet them carefully though, some are scams).
   
3. Once that's done, power up without the SIM inside
4. Type in #7465625*638*Unlock code# (8 digit unlock code)
5. The phone should display: “Network Lock Deactivated"
6. Phone may automatically reboot, if not - do it manually.

That should be all you need to do to get your phone back on the road. Sometimes the unlock code can take a while to generate though, so be patient!