tnfbypass/dump.py at main · MeowIce/tnfbypass · GitHub

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# dump.py - Capture the final stable form of the unpacked modernmfw.img
# Thanks Gemini for the code. I dont have much time to write a new one, so I just copy and paste it here :v
import os
import shutil
import time

BASE_PATH = r"C:\Users\MeowIce\Downloads\HyperTN_V3.2_Zircon_China_OS3.0.5.0.WNOCNXM_A16_20260125"
SOURCE_FILE = os.path.join(BASE_PATH, "firmware-update", "modernmfw.img")
DUMP_DIR = os.path.join(BASE_PATH, "Dump")

def capture_final_form():
    if not os.path.exists(DUMP_DIR): os.makedirs(DUMP_DIR)

    print("[*] Waiting for file to appear...")

    last_size = -1
    while True:
        if os.path.exists(SOURCE_FILE):
            current_size = os.path.getsize(SOURCE_FILE)

            if current_size > 0:
                if current_size == last_size:
                    time.sleep(2)
                    if os.path.getsize(SOURCE_FILE) == current_size:
                        dest = os.path.join(DUMP_DIR, "modernmfw_FINAL.img")
                        try:
                            shutil.copy2(SOURCE_FILE, dest)
                            print(f"\n[OK] Captured the final form: {dest} ({current_size / 1024 / 1024:.2f} MB)")
                            break
                        except PermissionError:
                            pass

                last_size = current_size
                print(f"\r[*] Current size: {current_size / 1024 / 1024:.2f} MB...", end="")

        time.sleep(0.2)

if __name__ == "__main__":
    capture_final_form()