diff --git a/Documentation/platforms/arm/nrf52/boards/thingy52/index.rst b/Documentation/platforms/arm/nrf52/boards/thingy52/index.rst
index ac01b70af22..251411c111b 100644
--- a/Documentation/platforms/arm/nrf52/boards/thingy52/index.rst
+++ b/Documentation/platforms/arm/nrf52/boards/thingy52/index.rst
@@ -29,13 +29,27 @@ Battery monitoring                 No
 Serial Console
 ==============
 
+At default serial console is available with Segger RTT driver.
+For access to the RTT console use this commands::
+
+  JLinkGDBServer -if SWD -device stm32h743zi -speed 16000
+  sudo socat -d -d PTY,link=/dev/ttyRTT0,raw,ignoreeof TCP:127.0.0.1:19021,reuseaddr
+  minicom -D /dev/ttyRTT0
+
+An alternative option is to use the P4 connector and connect an external UART converter:
+
 ===== ========== ==========
 Pin   Signal     Notes
 ===== ========== ==========
-P0.02 UART TX    P4 header
-P0.03 UART RX    P4 header
+P0.02 UART0 TX   P4 header
+P0.03 UART0 RX   P4 header
 ===== ========== ==========
 
+For this you need to select the following options in your configuration::
+
+  CONFIG_NRF52_UART0=y
+  CONFIG_UART0_SERIAL_CONSOLE=y
+
 Configurations
 ==============
 
@@ -49,7 +63,7 @@ Where <subdir> is one of the following:
 nsh
 ----
 
-Basic NuttShell configuration (console enabled in UART0, exposed via P4 header, at 115200 bps).
+Basic NuttShell configuration (console enabled on Segger RTT channel).
 
 Flash & Debug
 =============
diff --git a/boards/arm/nrf52/thingy52/configs/nsh/defconfig b/boards/arm/nrf52/thingy52/configs/nsh/defconfig
index a36cb4a71e3..a52ea4eb3fd 100644
--- a/boards/arm/nrf52/thingy52/configs/nsh/defconfig
+++ b/boards/arm/nrf52/thingy52/configs/nsh/defconfig
@@ -19,7 +19,6 @@ CONFIG_ARCH_STDARG_H=y
 CONFIG_BOARD_LOOPSPERMSEC=5500
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_MM_REGIONS=2
-CONFIG_NRF52_UART0=y
 CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_LINELEN=64
@@ -30,9 +29,10 @@ CONFIG_RAM_START=0x20000000
 CONFIG_RAW_BINARY=y
 CONFIG_RR_INTERVAL=200
 CONFIG_SCHED_WAITPID=y
+CONFIG_SERIAL_RTT0=y
 CONFIG_START_DAY=26
 CONFIG_START_MONTH=3
 CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_SYSLOG_RTT=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_UART0_SERIAL_CONSOLE=y