Hi,
during the flashing device i have this :
""

Found SWD-DP with ID 0x2BA01477
AP-IDR: 0x24770011, Type: AHB-AP
AHB-AP ROM: 0xE00FF000 (Base addr. of first ROM table)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl 0 @ E00FF000
ROMTbl 0 [0]: FFF0F000, CID: B105E00D, PID: 000BB00C SCS
ROMTbl 0 [1]: FFF02000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl 0 [2]: FFF03000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl 0 [3]: FFF01000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl 0 [4]: FFF41000, CID: B105900D, PID: 003BB923 TPIU-Lite
Cortex-M4 identified.
PC = 00004ACE, CycleCnt = 0000FEF8
R0 = 00000023, R1 = 00000000, R2 = 00000001, R3 = 40042000
R4 = 00000000, R5 = 00000000, R6 = 00000000, R7 = BD6C0A6F
R8 = 00000000, R9 = 00000000, R10= 00000000, R11= 00000000
R12= 00000000
SP(R13)= BD6C0A6C, MSP= BD6C0A6C, PSP= 00000000, R14(LR) = FFFFFFF9
XPSR = 81000003: APSR = Nzcvq, EPSR = 01000000, IPSR = 003 (HardFaultMemManage)
CFBP = 00000000, CONTROL = 00, FAULTMASK = 00, BASEPRI = 00, PRIMASK = 00
FPU regs: FPU not enabled / not implemented on connected CPU.

Downloading file [simple_leds.bin]...
Comparing flash [100%] Done.
Erasing flash [100%] Done.
Programming flash [100%] Done.
Verifying flash [100%] Done.
J-Link: Flash download: Flash programming performed for 1 range (28672 bytes)
J-Link: Flash download: Total time needed: 0.603s (Prepare: 0.013s, Compare: 0.006s, Erase: 0.376s, Program: 0.203s, Verify: 0.002s, Restore: 0.001s)
O.K.
""

I have not the log of my device, but its seems flashing correctly.
My attention goes on the message above

FPU regs: FPU not enabled / not implemented on connected CPU.

What did its means ?
Is it responsible of log issue ?

regards,
Abba