the problem is that we are using the same code for evaluation board and it is running well we also have one out of 6 boards that working well all other dost work at all we just successes to program

yes we are using SMPS

We are still waiting for ATM FAE helpsome know if ST people looking for this webwe are in the problem more then 3 weeks

We did change the capacitor and it doesn't Help

we try to all the optionwe did add capacitors on the VCAPwe did try to use external VCAP (1.2V or 1.1V) and the samewe must have a ST people may be they have better IDEA