diff --git a/build/device/dfu.py b/build/device/dfu.py
index 47358c53d..14f8ff030 100644
--- a/build/device/dfu.py
+++ b/build/device/dfu.py
@@ -148,7 +148,12 @@ def abort_request():
 
 def unlock_request():
     """Deactivate the protection"""
-    __dev.ctrl_transfer(0x21, __DFU_UNLOCK, 0, __DFU_INTERFACE, None, __TIMEOUT)
+    try:
+        __dev.ctrl_transfer(0x21, __DFU_UNLOCK, 0, __DFU_INTERFACE, None, 
+                            __TIMEOUT)
+    except usb.core.USBError:
+        print("Error when disabling protection, ignoring", file=sys.stderr)
+
 
 def clr_status():
     """Clears any error status (perhaps left over from a previous session)."""
diff --git a/ion/src/device/n0110/flash.ld b/ion/src/device/n0110/flash.ld
index 4bdf639f5..74e631b6e 100644
--- a/ion/src/device/n0110/flash.ld
+++ b/ion/src/device/n0110/flash.ld
@@ -244,6 +244,7 @@ SECTIONS {
     *(.rodata._ZL12KDColorWhite*)
     *(.rodata._ZL10KDColorRed*)
     *(.rodata._ZL12KDColorBlack*)
+    *(.rodata._ZN4CodeL15BackgroundColorEd*)
     *(.rodata._ZN3Ion6Device3SWD6ConfigL4PinsE)
     *(.rodata._ZN3Ion6Device7Display6ConfigL8FSMCPinsE)
     *(.rodata._ZZN3Ion6Device7Display9initPanelEvE11calibration)
diff --git a/python/port/genhdr/qstrdefs.in.h b/python/port/genhdr/qstrdefs.in.h
index 7b198582c..91c67f9e8 100644
--- a/python/port/genhdr/qstrdefs.in.h
+++ b/python/port/genhdr/qstrdefs.in.h
@@ -698,6 +698,8 @@ Q(from_uint16_buffer)
 Q(from_int32_buffer)
 Q(from_uint32_buffer)
 #endif
+
+#if MICROPY_PY_SYS
 // sys QSTRs
 Q(sys)
 Q(info)
@@ -707,3 +709,4 @@ Q(exit)
 Q(modules)
 Q(print_exception)
 Q(version_info)
+#endif
\ No newline at end of file
diff --git a/python/port/mod/ulab/numpy/numerical/numerical.c b/python/port/mod/ulab/numpy/numerical/numerical.c
index af9ff1c02..7ee4edfa7 100644
--- a/python/port/mod/ulab/numpy/numerical/numerical.c
+++ b/python/port/mod/ulab/numpy/numerical/numerical.c
@@ -78,7 +78,8 @@ static mp_obj_t numerical_all_any(mp_obj_t oin, mp_obj_t axis, uint8_t optype) {
         }
         // always get a float, so that we don't have to resolve the dtype later
         mp_float_t (*func)(void *) = ndarray_get_float_function(ndarray->dtype);
-        ndarray_obj_t *results = NULL;
+        // We set results to true here because it crash if it is NULL
+        ndarray_obj_t *results = mp_const_true;
         uint8_t *rarray = NULL;
         shape_strides _shape_strides = tools_reduce_axes(ndarray, axis);
         if(axis != mp_const_none) {