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Downloading the tool is only half the battle. You need the correct environment.

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Newer versions include prompts to keep your user data or perform a clean "factory reset" installation. Downloading the tool is only half the battle

Warning: Do not download "newflasher_x64_fix" or "newflasher_gui" if you specifically want the command-line v20. The GUI versions often lag behind in flash logic. download newflasher v20 best