# Program nRF52840 error

Hi,

I use nRFgo Studio(v.1.21.2.10 win7 x64) "Program Application" to program the combined file(SD+Bootloader+application), it will indicate an error as the attachment. The problem could be seen on all 52840 chip. However, it's ok if I use command line to program it.

But for some 52840 chips, when I use nrfjprog to program, it couldn't program and stop at "Initialzing the QSPI peripheral". I have erase all before programing. These chips couldn't use nRFgo to program, too.

Blue5_SDK_APP_SD_BL_0703.hex

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Is this on the nRF52840 PDK? Have you disconnected the external flash memory? If you do not have this memory on you board, you can set MemSize = 0x000000 in C:\Program Files (x86)\Nordic Semiconductor\nrf5x\bin\QspiDefault.ini to prevent nrfjprog from trying to erasing the flash.