diff --git a/python/slsdet/detector.py b/python/slsdet/detector.py
index 9f6d60a1d..ecaa2f42c 100755
--- a/python/slsdet/detector.py
+++ b/python/slsdet/detector.py
@@ -2201,8 +2201,8 @@ class Detector(CppDetectorApi):
         [Jungfrau] Detector gain mode. Enum: gainMode
         Note
         -----
-        
-        [Jungfrau] NORMAL_GAIN_MODE, FORCE_SWITCH_G1, FORCE_SWITCH_G2 
+        [Jungfrau] NORMAL_GAIN_MODE, FORCE_SWITCH_G1, FORCE_SWITCH_G2, FIX_G1, FIX_G2, FIX_G0, FIX_HG0 \n
+        CAUTION: Do not use FIX_G0 and FIX_HG0 blindly, you can damage the detector!!!
         """
         return element_if_equal(self.getGainMode())
 
diff --git a/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c
index 200b1a03f..2d3745681 100644
--- a/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/jungfrauDetectorServer/slsDetectorFunctionList.c
@@ -1075,15 +1075,27 @@ enum detectorSettings setSettings(enum detectorSettings sett) {
         configureChip();
     }
 
-    return thisSettings;
+    return getSettings();
 }
 
-enum detectorSettings getSettings() { return thisSettings; }
+enum detectorSettings getSettings() {
+    if (bus_r(DAQ_REG) & DAQ_HIGH_GAIN_MSK)
+        return DYNAMICHG0;
+    return DYNAMICGAIN;
+}
 
 enum gainMode getGainMode() {
-    uint32_t retval = bus_r(DAQ_REG) & DAQ_FRCE_SWTCH_GAIN_MSK;
+    uint32_t regval = bus_r(DAQ_REG);
+    uint32_t retval_force = regval & DAQ_FRCE_SWTCH_GAIN_MSK;
+    uint32_t retval_fix = regval & DAQ_FIX_GAIN_MSK;
+    uint32_t retval_cmp_rst = regval & DAQ_CMP_RST_MSK;
 
-    switch (retval) {
+    // only one set should be valid
+    if ((retval_force && retval_fix) || (retval_fix && retval_cmp_rst) ||
+        (retval_force && retval_cmp_rst)) {
+        LOG(logERROR, ("undefined gain mode. DAQ reg: 0x%x\n", regval));
+    }
+    switch (retval_force) {
     case DAQ_FRCE_GAIN_STG_0_VAL:
         return NORMAL_GAIN_MODE;
     case DAQ_FRCE_GAIN_STG_1_VAL:
@@ -1091,10 +1103,25 @@ enum gainMode getGainMode() {
     case DAQ_FRCE_GAIN_STG_2_VAL:
         return FORCE_SWITCH_G2;
     default:
-        LOG(logERROR, ("This gain mode %d is not defined [DAQ reg: %d]\n",
-                       (retval << DAQ_FRCE_SWTCH_GAIN_OFST), retval));
-        return -1;
+        break;
     }
+    switch (retval_fix) {
+    case DAQ_FIX_GAIN_STG_1_VAL:
+        return FIX_G1;
+    case DAQ_FIX_GAIN_STG_2_VAL:
+        return FIX_G2;
+    default:
+        break;
+    }
+
+    if (retval_cmp_rst) {
+        if (getSettings() == DYNAMICGAIN) {
+            return FIX_G0;
+        }
+        return FIX_HG0;
+    }
+    LOG(logERROR, ("This gain mode is undefined [DAQ reg: %d]\n", regval));
+    return -1;
 }
 
 void setGainMode(enum gainMode mode) {
diff --git a/slsDetectorSoftware/include/sls/Detector.h b/slsDetectorSoftware/include/sls/Detector.h
index 08eaa8bc8..a26c5497f 100644
--- a/slsDetectorSoftware/include/sls/Detector.h
+++ b/slsDetectorSoftware/include/sls/Detector.h
@@ -1179,7 +1179,9 @@ class Detector {
     /** [Jungfrau]*/
     Result<defs::gainMode> getGainMode(Positions pos = {}) const;
 
-    /** [Jungfrau] Options: NORMAL_GAIN_MODE, FORCE_SWITCH_G1, FORCE_SWITCH_G2\n
+    /** [Jungfrau] Options: NORMAL_GAIN_MODE, FORCE_SWITCH_G1, FORCE_SWITCH_G2,
+     * FIX_G1, FIX_G2, FIX_G0, FIX_HG0 \n\CAUTION: Do not use FIX_G0 and FIX_HG0
+     * blindly, you can damage the detector!!!\n
      */
     void setGainMode(const defs::gainMode mode, Positions pos = {});
 
diff --git a/slsDetectorSoftware/src/CmdProxy.h b/slsDetectorSoftware/src/CmdProxy.h
index 036f8b972..a60f6ef57 100644
--- a/slsDetectorSoftware/src/CmdProxy.h
+++ b/slsDetectorSoftware/src/CmdProxy.h
@@ -1877,7 +1877,9 @@ class CmdProxy {
     INTEGER_COMMAND_VEC_ID(
         gainmode, getGainMode, setGainMode,
         sls::StringTo<slsDetectorDefs::gainMode>,
-        "[forceswitchg1, forceswitchg2]\n\t[Jungfrau] Gain mode.");
+        "[forceswitchg1|forceswitchg2|fixgain1|fixgain2|fixgain0|"
+        "fixhighgain0]\n\t[Jungfrau] Gain mode.\n\tCAUTION: Do not use "
+        "fixgain0 and fixhighgain0 blindly, you can damage the detector!!!");
 
     /* Gotthard Specific */
     TIME_GET_COMMAND(exptimel, getExptimeLeft,
diff --git a/slsSupportLib/include/sls/sls_detector_defs.h b/slsSupportLib/include/sls/sls_detector_defs.h
index b4ce1bf87..65472c488 100644
--- a/slsSupportLib/include/sls/sls_detector_defs.h
+++ b/slsSupportLib/include/sls/sls_detector_defs.h
@@ -414,7 +414,15 @@ typedef struct {
 
     enum vetoAlgorithm { DEFAULT_ALGORITHM };
 
-    enum gainMode { NORMAL_GAIN_MODE, FORCE_SWITCH_G1, FORCE_SWITCH_G2 };
+    enum gainMode {
+        NORMAL_GAIN_MODE,
+        FORCE_SWITCH_G1,
+        FORCE_SWITCH_G2,
+        FIX_G1,
+        FIX_G2,
+        FIX_G0,
+        FIX_HG0
+    };
 
 #ifdef __cplusplus
 
diff --git a/slsSupportLib/src/ToString.cpp b/slsSupportLib/src/ToString.cpp
index 23882768a..95fb57f1f 100644
--- a/slsSupportLib/src/ToString.cpp
+++ b/slsSupportLib/src/ToString.cpp
@@ -587,6 +587,14 @@ std::string ToString(const defs::gainMode s) {
         return std::string("forceswitchg1");
     case defs::FORCE_SWITCH_G2:
         return std::string("forceswitchg2");
+    case defs::FIX_G1:
+        return std::string("fixg1");
+    case defs::FIX_G2:
+        return std::string("fixg2");
+    case defs::FIX_G0:
+        return std::string("fixg0");
+    case defs::FIX_HG0:
+        return std::string("fixhg0");
     default:
         return std::string("Unknown");
     }
@@ -982,6 +990,14 @@ template <> defs::gainMode StringTo(const std::string &s) {
         return defs::FORCE_SWITCH_G1;
     if (s == "forceswitchg2")
         return defs::FORCE_SWITCH_G2;
+    if (s == "fixg1")
+        return defs::FIX_G1;
+    if (s == "fixg2")
+        return defs::FIX_G2;
+    if (s == "fixg0")
+        return defs::FIX_G0;
+    if (s == "fixhg0")
+        return defs::FIX_HG0;
     throw sls::RuntimeError("Unknown gain mode " + s);
 }