AKuma.1219Visitor IIForum|Forum|6 years agoNovember 16, 2019QuestionUnable to reprogram STM32F107RC. How to reset Option Bytes to factory settings?Forum|Forum|6 years agoNovember 16, 20190 replies882 viewsI am using STM32F107RC MCU. And programming it using ST LINK utility in SWD mode.By mistake I have set the READ Protection & WRITE protection in its Option Bytes.Due to which now my controller is locked and I am unable to erase or reprogram it.Enclosed are the images of errors encountered during programming.ST-LinkSTM32F1 series