diff --git a/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer b/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer
index 1e1969429..bbbfbe429 100755
Binary files a/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer and b/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer differ
diff --git a/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c
index 3fc6b37a1..1cf5cf511 100644
--- a/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c
@@ -52,6 +52,9 @@ int detPos[4] = {};
 int chipVersion = 10; // (1.0)
 int chipConfigured = 0;
 
+// until firmware is done
+int temp_partialReadout = 512;
+
 int isInitCheckDone() { return initCheckDone; }
 
 int getInitResult(char **mess) {
@@ -1606,6 +1609,10 @@ int setPartialReadout(int value) {
     if (value < 0 || (value % PARTIAL_READOUT_MULTIPLE != 0))
         return FAIL;
 
+    // will be replaced when firmware is fixed
+    temp_partialReadout = value;
+    return OK;
+
     // regval is numpackets - 1 
     int regval = (value / PARTIAL_READOUT_MULTIPLE) - 1;
     uint32_t addr = PARTIAL_READOUT_REG;
@@ -1624,10 +1631,14 @@ int setPartialReadout(int value) {
 }
 
 int getPartialReadout() {
+    
+    // will be replaced when firmware is fixed
+    return temp_partialReadout;
+
     int enable = (bus_r(PARTIAL_READOUT_REG) & PARTIAL_READOUT_ENBL_MSK);
     int regval = ((bus_r(PARTIAL_READOUT_REG) & PARTIAL_READOUT_NUM_ROWS_MSK) >> PARTIAL_READOUT_NUM_ROWS_OFST);
  
-  int maxRegval = (MAX_ROWS_PER_READOUT/ PARTIAL_READOUT_MULTIPLE) - 1;
+    int maxRegval = (MAX_ROWS_PER_READOUT/ PARTIAL_READOUT_MULTIPLE) - 1;
     if ((regval == maxRegval && enable) || (regval != maxRegval && !enable)) {
         return -1;
     }
diff --git a/slsSupportLib/include/sls/versionAPI.h b/slsSupportLib/include/sls/versionAPI.h
index 0a3a968ca..9f7d309c6 100644
--- a/slsSupportLib/include/sls/versionAPI.h
+++ b/slsSupportLib/include/sls/versionAPI.h
@@ -6,8 +6,8 @@
 #define APIGUI 0x210816
 #define APIGOTTHARD 0x210820
 #define APIGOTTHARD2 0x210820
-#define APIJUNGFRAU 0x210820
 #define APIMYTHEN3 0x210820
 #define APIEIGER 0x210820
 #define APICTB 0x210820
 #define APIMOENCH 0x210820
+#define APIJUNGFRAU 0x210820