Prerequisite: Qualcomm USB Treiber / BITPIM
Switch USB mode
1. Key in *#0523# (Disconnected)
2. Key in # for 4 times
3. [9]common -> [6]USB Configuration -> [2]Qualcomm USB
Confirm
Alternative: Standby mode key in *#782872#
4. USB connect U900 with PC, Choose “PC Connections”, Install driver from location “Qualcomm USB Treiber” folder
5. My Computer -> Properties -> Hardware -> Device Manager -> Ports (COM & LPT)
6. BITPIM setup: Startup BITPIM -> edit setting -> Phone Type (Other CDMA phone) -> Com Port (Step 5)
7. Flash Memory: View -> View Filesystem -> Click Filesystems -> “Retrieving…”
8. Media -> Games -> Right Click (Make Subdirectory) -> Right Click on new folder -> New File -> Add (*.jar/*.jad)
9. Disconnect USB -> Exit Qualcomm Menu -> Key in *#6984125*# -> Admin Setting -> [4]Internals -> Key in *#9072641*# -> [7]Storage Settings -> [2]Update Java DB -> Exit
10. ->
1. Key in *#0523# (Disconnected)
2. Key in # for 4 times
3. [9]common -> [6]USB Configuration -> [1]Samsung USB
Confirm
Alternative: Standby mode key in *#726872#
JIA-gadget 