diff --git a/mtkclient/Library/kamakiri.py b/mtkclient/Library/kamakiri.py
index 4874833..9dd25bd 100755
--- a/mtkclient/Library/kamakiri.py
+++ b/mtkclient/Library/kamakiri.py
@@ -288,12 +288,11 @@ class Kamakiri(metaclass=LogBase):
             self.error(f"Error on opening {filename} for writing: {str(e)}")
             return False
 
-    def dump_preloader(self, length=0x80000):
+    def dump_preloader(self):
         try:
             filename = ""
-            self.mtk.port.usbwrite(pack(">I",length))
-            ack = unpack("<I", self.mtk.port.usbread(4))[0]
-            if ack == 0xC0C0C0C0:
+            length = unpack("<I", self.mtk.port.usbread(4))[0]
+            if length > 0:
                 data = self.mtk.port.usbread(length)
                 idx = data.find(b"MTK_BLOADER_INFO")
                 if idx != -1:
diff --git a/mtkclient/Library/pltools.py b/mtkclient/Library/pltools.py
index 171d396..dcbb3a0 100755
--- a/mtkclient/Library/pltools.py
+++ b/mtkclient/Library/pltools.py
@@ -252,7 +252,7 @@ class PLTools(metaclass=LogBase):
         if btype == "kamakiri":
             self.info("Kamakiri / DA Run")
             if self.runpayload(filename=pfilename, ptype="kamakiri", ack=0xC1C2C3C4, offset=0):
-                data,filename=self.kama.dump_preloader(0x80000)
+                data,filename=self.kama.dump_preloader()
                 return data, filename
             else:
                 self.error("Error on sending payload: " + pfilename)
@@ -260,7 +260,7 @@ class PLTools(metaclass=LogBase):
         elif btype == "kamakiri2" or btype is None:
             self.info("Kamakiri2")
             if self.runpayload(filename=pfilename, ptype="kamakiri2", ack=0xC1C2C3C4, offset=0):
-                data,filename=self.kama.dump_preloader(0x80000)
+                data,filename=self.kama.dump_preloader()
                 return data, filename
             else:
                 self.error("Error on sending payload: " + pfilename)
diff --git a/mtkclient/payloads/generic_preloader_dump_payload.bin b/mtkclient/payloads/generic_preloader_dump_payload.bin
index 215d55d..138cb20 100755
Binary files a/mtkclient/payloads/generic_preloader_dump_payload.bin and b/mtkclient/payloads/generic_preloader_dump_payload.bin differ