diff --git a/core/tests/run_tests_device_emu.sh b/core/tests/run_tests_device_emu.sh
index 682c0ed6d5..ad8e686b19 100755
--- a/core/tests/run_tests_device_emu.sh
+++ b/core/tests/run_tests_device_emu.sh
@@ -1,21 +1,29 @@
 #!/bin/bash
 
-MICROPYTHON=../build/unix/micropython
+SDIR="$(SHELL_SESSION_FILE='' && cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+CORE_DIR="$SDIR/.."
+MICROPYTHON="$CORE_DIR/build/unix/micropython"
+RUN_TEST_EMU=1
+DISABLE_FADE=1
 PYOPT=0
 
-# run emulator
-cd ../src
-$MICROPYTHON -O$PYOPT main.py >/dev/null &
-upy_pid=$!
-sleep 1
+# run emulator if RUN_TEST_EMU
+if [[ $RUN_TEST_EMU > 0 ]]; then
+  cd "$CORE_DIR/src"
+  TREZOR_TEST=1 \
+  TREZOR_DISABLE_FADE=$DISABLE_FADE \
+    $MICROPYTHON -O$PYOPT main.py >/dev/null &
+  upy_pid=$!
+  sleep 1
+  cd -
+fi
 
 export TREZOR_PATH=udp:127.0.0.1:21324
 
 # run tests
-cd ..
 error=0
 if ! pytest "$@"; then
-    error=1
+  error=1
 fi
 kill $upy_pid
 exit $error
diff --git a/core/tests/run_tests_device_emu_monero.sh b/core/tests/run_tests_device_emu_monero.sh
index 43c11477a2..e8f982f217 100755
--- a/core/tests/run_tests_device_emu_monero.sh
+++ b/core/tests/run_tests_device_emu_monero.sh
@@ -7,13 +7,16 @@
 SDIR="$(SHELL_SESSION_FILE='' && cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 CORE_DIR="$SDIR/.."
 MICROPYTHON="$CORE_DIR/build/unix/micropython"
+DISABLE_FADE=1
 PYOPT=0
 upy_pid=""
 
 # run emulator if RUN_TEST_EMU
 if [[ $RUN_TEST_EMU > 0 ]]; then
   cd "$CORE_DIR/src"
-  "$MICROPYTHON" -O$PYOPT main.py >/dev/null &
+  TREZOR_TEST=1 \
+  TREZOR_DISABLE_FADE=$DISABLE_FADE \
+    "$MICROPYTHON" -O$PYOPT main.py >/dev/null &
   upy_pid=$!
   cd -
   sleep 1