diff --git a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer
index 0ac0007c5..bc4c30552 100755
Binary files a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer and b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer differ
diff --git a/slsDetectorServers/mythen3DetectorServer/mythen3.c b/slsDetectorServers/mythen3DetectorServer/mythen3.c
index f4dc01871..a03fd736d 100644
--- a/slsDetectorServers/mythen3DetectorServer/mythen3.c
+++ b/slsDetectorServers/mythen3DetectorServer/mythen3.c
@@ -304,7 +304,7 @@ patternParameters *setChannelRegisterChip(int ichip, char *mask,
                 chanReg |= (0x1 << (3 + icounter));
             }
         }
-
+        chanReg /= 2;
         // deserialize
         if (chanReg & CHAN_REG_BAD_CHANNEL_MSK) {
             LOG(logINFOBLUE,
diff --git a/slsReceiverSoftware/src/MultiReceiverApp.cpp b/slsReceiverSoftware/src/MultiReceiverApp.cpp
index 061c9a441..44284281c 100644
--- a/slsReceiverSoftware/src/MultiReceiverApp.cpp
+++ b/slsReceiverSoftware/src/MultiReceiverApp.cpp
@@ -146,8 +146,21 @@ void GetData(slsDetectorDefs::sls_receiver_header &header,
         // header->packetsMask.to_string().c_str(),
         ((uint8_t)(*((uint8_t *)(dataPointer)))), imageSize);
 
-    // if data is modified, eg ROI and size is reduced
-    imageSize = 26000;
+    // // example of how to use roi or modify data that is later written to file
+    // slsDetectorDefs::ROI roi{0, 10, 0, 20};
+    // int width = roi.xmax - roi.xmin;
+    // int height = roi.ymax - roi.ymin;
+    // uint8_t *destPtr = (uint8_t *)dataPointer;
+    // for (int irow = roi.ymin; irow < roi.ymax; ++irow) {
+    //     memcpy(destPtr,
+    //            ((uint8_t *)(dataPointer + irow * callbackHeader.shape.x +
+    //                         roi.xmin)),
+    //            width);
+    //     destPtr += width;
+    // }
+    // memcpy((uint8_t*)dataPointer, (uint8_t*)dataPointer
+    // // setting roi for eg. changes size
+    // imageSize = width * height;
 }
 
 /**
diff --git a/slsSupportLib/include/sls/versionAPI.h b/slsSupportLib/include/sls/versionAPI.h
index f37cd7b42..b9a1d824d 100644
--- a/slsSupportLib/include/sls/versionAPI.h
+++ b/slsSupportLib/include/sls/versionAPI.h
@@ -5,8 +5,8 @@
 #define APIRECEIVER  "developer 0x241122"
 #define APICTB       "developer 0x250310"
 #define APIGOTTHARD2 "developer 0x250310"
-#define APIMYTHEN3   "developer 0x250310"
 #define APIMOENCH    "developer 0x250310"
 #define APIEIGER     "developer 0x250310"
 #define APIXILINXCTB "developer 0x250311"
 #define APIJUNGFRAU  "developer 0x250318"
+#define APIMYTHEN3   "developer 0x250409"