Unit: Sharp 703shf
Problem: power on then reboot when initializing appears.
Action taken:
Flashing different version but still the same problem occurs..
Solution:
1. flash the phone with sharp
903_Testmode_EU_v2.ssw 
2. press key (#) sign and power on and wait until the phone powers on for formatting. (phone may have display or just blank white screen, just wait 20 to 25 minutews until finish formatting.)
3. flash the phone back to 703shf firmware
703shf_jap_p1.ssw and
703shf_jap_p2.ssw 
you have now working sharp 703shf phones now.....



*i'm using SETool3
check complete phone after flashing and unlock phone after flashing in settings tab of SEtool program.
you can also use this files in USB smart.....
Regards to all.....