diff --git a/openair1/SIMULATION/LTE_PHY/ulsim.c b/openair1/SIMULATION/LTE_PHY/ulsim.c
index b0ac8150630f99590a9152a5d9c689a016708568..de550c9d697165734aa1fd34ac23864162967680 100644
--- a/openair1/SIMULATION/LTE_PHY/ulsim.c
+++ b/openair1/SIMULATION/LTE_PHY/ulsim.c
@@ -1245,7 +1245,7 @@ int main(int argc, char **argv) {
 #endif       
       }   //trials
 
-      printf("\n**********rb> %d ***mcs : %d  *********SNR = %f dB (%f): TX %d dB (gain %f dB), N0W %f dB, I0 %d dB [ (%d,%d) dB / (%d,%d) dB ]**************************\n",
+      printf("\n**********rb: %d ***mcs : %d  *********SNR = %f dB (%f): TX %d dB (gain %f dB), N0W %f dB, I0 %d dB [ (%d,%d) dB / (%d,%d) dB ]**************************\n",
 	     nb_rb,mcs,SNR,SNR2,
 	     tx_lev_dB,
 	     20*log10(tx_gain),
diff --git a/targets/TEST/OAI/case11.py b/targets/TEST/OAI/case11.py
index e8da76b3be210c793b51a7105a32e80e3c068ad6..372bbc3e8e9e7456be2f054abcab22c2878826b0 100644
--- a/targets/TEST/OAI/case11.py
+++ b/targets/TEST/OAI/case11.py
@@ -56,7 +56,7 @@ def execute(oai, user, pw, logfile,logdir,debug):
         trace = logdir + '/log_' + case + test + '.txt;'
         tee = ' 2>&1 | tee ' + trace
         diag = 'check the compilation errors for dlsim in $OPENAIR1_DIR/SIMULATION/LTE_PHY'
-        oai.send('make clean;')
+        oai.send('make cleanall;')
         oai.send('rm -f ./dlsim.rel8;')
         oai.send_expect_false('make dlsim -j4' + tee, makerr1,  1500)
         oai.send('cp ./dlsim ./dlsim.rel8;')
@@ -73,7 +73,7 @@ def execute(oai, user, pw, logfile,logdir,debug):
         trace = logdir + '/log_' + case + test + '.txt;'
         tee = ' 2>&1 | tee ' + trace
         diag = 'check the compilation errors for ulsim in $OPENAIR1_DIR/SIMULATION/LTE_PHY'
-        oai.send('make clean;')
+        oai.send('make cleanall;')
         oai.send('rm -f ./ulsim.rel8;')
         oai.send_expect_false('make ulsim -j4' + tee, makerr1,  1500)
         oai.send('cp ./ulsim ./ulsim.rel8;')
diff --git a/targets/TEST/OAI/case12.py b/targets/TEST/OAI/case12.py
index aae71c8fdab545f89b2fc83bdf95475bc0adabb9..29017385d5931f505866d74e4e3c11a803c99b60 100644
--- a/targets/TEST/OAI/case12.py
+++ b/targets/TEST/OAI/case12.py
@@ -93,7 +93,7 @@ def execute(oai, user, pw, logfile,logdir,debug):
     
     try:
         test = 1
-        MIN_SNR = 2
+        MIN_SNR = 0
         name = 'Run oai.dlsim.perf.'+str(PERF)+'%'
         diag = 'no diagnostic is available, check the log file'
         for i in range(len(PRB)):
diff --git a/targets/TEST/OAI/openair.py b/targets/TEST/OAI/openair.py
index 84e09ac41b8fd76f1be08005ad12adc75df670e0..62b7d82c7b97dfde0cb1b7344292b249c05e58a3 100644
--- a/targets/TEST/OAI/openair.py
+++ b/targets/TEST/OAI/openair.py
@@ -184,3 +184,10 @@ class openair(core):
                 os.remove(filepath)
                 #print 'Could not remove the filepath'+ filepath + ' with error ' + OSError
     
+    def create_dir(self,dirname,debug) :
+        if not os.path.exists(dirname) :
+            try:
+                os.makedirs(dirname)
+            except OSError:
+                # There was an error on creation, so make sure we know about it
+                raise