diff --git a/tclcheck_findver_m3.py b/tclcheck_findver_m3.py
new file mode 100644
index 0000000..e4de3e7
--- /dev/null
+++ b/tclcheck_findver_m3.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# pylint: disable=C0111,C0326,C0103
+
+"""Find all OTA updates for a given PRD."""
+
+import sys
+
+from tcllib import ansi, argparser
+from tcllib.devices import MobileDevice
+from tcllib.dumpmgr import write_info_if_dumps_found
+from tcllib.requests import CheckRequest, RequestRunner, ServerVoteSelector
+
+
+dpdesc = """
+    Finds all valid OTA updates for a given PRD. Scan range can be set by
+    startver and endver switches.
+    """
+dp = argparser.DefaultParser(__file__, dpdesc)
+dp.add_argument("prd", help="CU Reference #, e.g. PRD-63117-011")
+dp.add_argument("startver", help="Beginning of scan range", nargs="?", default="AAA000")
+dp.add_argument("endver", help="End of scan range", nargs="?", default="AAZ999")
+args = dp.parse_args(sys.argv[1:])
+
+dev = MobileDevice()
+dev.curef = args.prd
+dev.mode = 3
+start_ver = args.startver
+end_ver = args.endver
+
+print("Valid firmwares for model {} (between {} and {}):".format(dev.curef, start_ver, end_ver))
+
+cur_ver = start_ver
+allvers = []
+while True:
+    allvers.append(cur_ver)
+    if cur_ver == end_ver:
+        break
+    letters = list(cur_ver[:3])
+    num = int(cur_ver[3:6])
+    num += 1
+    if num > 999:
+        num = 0
+        for i in range(2, -1, -1):
+            if letters[i] == "Z":
+                letters[i] = "A"
+                continue
+            letters[i] = chr(ord(letters[i])+1)
+            break
+    cur_ver = "{:3}{:03d}".format("".join(letters), num)
+
+runner = RequestRunner(ServerVoteSelector(), https=False)
+runner.max_tries = 20
+
+done_count = 0
+total_count = len(allvers)
+for fv in allvers:
+    done_count += 1
+    print("Checking {} ({}/{})".format(fv, done_count, total_count))
+    print(ansi.UP_DEL, end="")
+    dev.fwver = fv
+    chk = CheckRequest(dev)
+    runner.run(chk)
+    if chk.success:
+        chkres = chk.get_result()
+        txt_tv = chkres.tvver
+        print("{}: {} ⇨ {} {}".format(dev.curef, fv, txt_tv, chkres.filehash))
+
+print("Scan complete.")
+write_info_if_dumps_found()
diff --git a/tclcheck_findver_m5.py b/tclcheck_findver_m5.py
new file mode 100644
index 0000000..5613f84
--- /dev/null
+++ b/tclcheck_findver_m5.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# pylint: disable=C0111,C0326,C0103
+
+"""Find all OTA updates for a given PRD."""
+
+import sys
+
+from tcllib import ansi, argparser
+from tcllib.devices import MobileDevice
+from tcllib.dumpmgr import write_info_if_dumps_found
+from tcllib.requests import CheckRequest, RequestRunner, ServerVoteSelector
+
+
+dpdesc = """
+    Finds all valid OTA updates for a given PRD. Scan range can be set by
+    startver and endver switches.
+    """
+dp = argparser.DefaultParser(__file__, dpdesc)
+dp.add_argument("prd", help="CU Reference #, e.g. PRD-63117-011")
+dp.add_argument("startver", help="Beginning of scan range", nargs="?", default="AAA000")
+dp.add_argument("endver", help="End of scan range", nargs="?", default="AAZ999")
+args = dp.parse_args(sys.argv[1:])
+
+dev = MobileDevice()
+dev.curef = args.prd
+dev.mode = 5
+start_ver = args.startver
+end_ver = args.endver
+
+print("Valid firmwares for model {} (between {} and {}):".format(dev.curef, start_ver, end_ver))
+
+cur_ver = start_ver
+allvers = []
+while True:
+    allvers.append(cur_ver)
+    if cur_ver == end_ver:
+        break
+    letters = list(cur_ver[:3])
+    num = int(cur_ver[3:6])
+    num += 1
+    if num > 999:
+        num = 0
+        for i in range(2, -1, -1):
+            if letters[i] == "Z":
+                letters[i] = "A"
+                continue
+            letters[i] = chr(ord(letters[i])+1)
+            break
+    cur_ver = "{:3}{:03d}".format("".join(letters), num)
+
+runner = RequestRunner(ServerVoteSelector(), https=False)
+runner.max_tries = 20
+
+done_count = 0
+total_count = len(allvers)
+for fv in allvers:
+    done_count += 1
+    print("Checking {} ({}/{})".format(fv, done_count, total_count))
+    print(ansi.UP_DEL, end="")
+    dev.fwver = fv
+    chk = CheckRequest(dev)
+    runner.run(chk)
+    if chk.success:
+        chkres = chk.get_result()
+        txt_tv = chkres.tvver
+        print("{}: {} ⇨ {} {}".format(dev.curef, fv, txt_tv, chkres.filehash))
+
+print("Scan complete.")
+write_info_if_dumps_found()
diff --git a/tclcheck_findver_m6.py b/tclcheck_findver_m6.py
new file mode 100644
index 0000000..9f963b8
--- /dev/null
+++ b/tclcheck_findver_m6.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# pylint: disable=C0111,C0326,C0103
+
+"""Find all OTA updates for a given PRD."""
+
+import sys
+
+from tcllib import ansi, argparser
+from tcllib.devices import MobileDevice
+from tcllib.dumpmgr import write_info_if_dumps_found
+from tcllib.requests import CheckRequest, RequestRunner, ServerVoteSelector
+
+
+dpdesc = """
+    Finds all valid OTA updates for a given PRD. Scan range can be set by
+    startver and endver switches.
+    """
+dp = argparser.DefaultParser(__file__, dpdesc)
+dp.add_argument("prd", help="CU Reference #, e.g. PRD-63117-011")
+dp.add_argument("startver", help="Beginning of scan range", nargs="?", default="AAA000")
+dp.add_argument("endver", help="End of scan range", nargs="?", default="AAZ999")
+args = dp.parse_args(sys.argv[1:])
+
+dev = MobileDevice()
+dev.curef = args.prd
+dev.mode = 6
+start_ver = args.startver
+end_ver = args.endver
+
+print("Valid firmwares for model {} (between {} and {}):".format(dev.curef, start_ver, end_ver))
+
+cur_ver = start_ver
+allvers = []
+while True:
+    allvers.append(cur_ver)
+    if cur_ver == end_ver:
+        break
+    letters = list(cur_ver[:3])
+    num = int(cur_ver[3:6])
+    num += 1
+    if num > 999:
+        num = 0
+        for i in range(2, -1, -1):
+            if letters[i] == "Z":
+                letters[i] = "A"
+                continue
+            letters[i] = chr(ord(letters[i])+1)
+            break
+    cur_ver = "{:3}{:03d}".format("".join(letters), num)
+
+runner = RequestRunner(ServerVoteSelector(), https=False)
+runner.max_tries = 20
+
+done_count = 0
+total_count = len(allvers)
+for fv in allvers:
+    done_count += 1
+    print("Checking {} ({}/{})".format(fv, done_count, total_count))
+    print(ansi.UP_DEL, end="")
+    dev.fwver = fv
+    chk = CheckRequest(dev)
+    runner.run(chk)
+    if chk.success:
+        chkres = chk.get_result()
+        txt_tv = chkres.tvver
+        print("{}: {} ⇨ {} {}".format(dev.curef, fv, txt_tv, chkres.filehash))
+
+print("Scan complete.")
+write_info_if_dumps_found()