Samsung SGH-A887 (solstice)

1. QUALCOM USB mode of Samsung 3G phones:
   
   
   
   • Dial *#782872# and confirm after 2 seconds to activate the mode
   • Connect phone to PC USB port with USB cable
   • After the drivers are installed, the following two were found under Ports: 
   • PHD HS-USB diagnostics 9002
     
   • PHD HS-USB NMEA 9002
   • PHD HS-USB Modem 9002 was installed under Modems
   • Two USB Composite Devices were installed under Universal Serial Bus Controllers
   • To exit QUALCOM mode, dial *#726872# and confirm after 2 seconds
   
   
   
2. Firmware downloader mode:
   
   
   
   
   • Power off the phone
     
   • Remove any memory card you may have and then remove the SIM card
   • Hold down the 'Volume down' key (The bottom rocker button on the left side of your phone) and the camera button and press the power on button. 
   • A887 should start up into a screen with these on the top: DEMSBL BOOT loader for MSM6290 More than Downloader V5.43
   • Get MultiLoader V5.56 here to download the firmware for MSM6290