i already changed my R1CA037 APAC firmware to the latest R1EA037 APAC firmware using SEUS...
Before this with my old firmware i've got a problem with my camera, the auto lens cover can't open when i press short cut camera button or tru menu... But when i changed the firmware, the problem completely solved... :D
The new firmware quit fast.. i like the new style of picture slide, looks smooth.. The three soft key button also have vibrate and it's cool... for the first time im using the soft key it's really hard, i need to touch it a few times... but after 10 minutes im using and explore the phone, the soft key works great and i really pleased with this R1EA037 firmware... So far, my phone dont have any random reboot and hope everthing will gonna be fine until SEUS release much more better firmware soon... :p