Posted on March 02, 2015 at 17:37 Thanks a lot for reply. The board is good, we tried programming some PCBA with Keil uViusion4 and Keil uLink2 and all works good. I tried to erase the chip with STM32 ST-Link Utility and it work fine, then i tried to erase sectors and some sectors is not erased (the system tell me ''Verify the memory protection'').
If the ST-LINK has current firmware, and it's not a SWD/JTAG issue, or one of the other connection options, you'll need to find someone at ST to discuss the issue with you.
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