Assume every current H4 can do 201 datapoints

NanoVNASaver/Hardware/NanoVNA_H4.py

@@ -27,6 +27,7 @@ class NanoVNA_H4(NanoVNA_H):
     name = "NanoVNA-H4"
     screenwidth = 480
     screenheight = 320
+    valid_datapoints = (101, 11, 51, 201)
 
     def __init__(self, iface: Interface):
         super().__init__(iface)
@@ -34,10 +35,10 @@ class NanoVNA_H4(NanoVNA_H):
         if "Scan mask command" in self.features:
             self.sweep_method = "scan_mask"
 
-    def read_features(self):
-        logger.debug("read_features")
-        super().read_features()
-        if self.readFirmware().find("DiSlord") > 0:
-            self.features.add("Customizable data points")
-            logger.info("VNA has 201 datapoints capability")
-            self.valid_datapoints = (201, 11, 51,101)
+    # def read_features(self):
+    #     logger.debug("read_features")
+    #     super().read_features()
+    #     if self.readFirmware().find("DiSlord") > 0:
+    #         self.features.add("Customizable data points")
+    #         logger.info("VNA has 201 datapoints capability")
+    #         self.valid_datapoints = (201, 11, 51,101)