yes it's second hand.. but i used it for 2 weeks normally...
then start to do this problem.. and say this messagge in yellow (same color when you install some apps) and then i try to reflesh with

RX-51_2009SE_10.2010.13-2.VANILLA_PR_EMMC_MR0_ARM.bin

and

RX-51_2009SE_10.2010.19-1_PR_COMBINED_MR0_ARM.bin

the phone is not stolen because the owner give me also the sygic serial number in his own page.