https://devzone.nordicsemi.com/f/nordic-q-a/2312/trouble-with-system-halted-but-cannot-reset-nrf51822-chipHi,: I run my application program by nRF51822, about S110 V6.0 and SDK 5.2. When the program run servial cycle functioin , it is work normail.But sometime, nRF51822 sysytem happened system halted, so bluethooth was break and not work long time. . Ien-USTelligent Community 13Thu, 26 May 2016 16:16:22 GMThttps://devzone.nordicsemi.com/thread/9574?ContentTypeID=1Thu, 26 May 2016 16:16:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:df51a887-ceea-472c-8fa4-b8f8cde46f55hawk<p>hi，james zh: you fixed this trouble?</p><div style="clear:both;"></div>