How to downgrade psp firmware 6.60 to 5.03

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Download the specific file for your PSP model: Important UPDATE: If you are having trouble playing the latest PSP Games, you may want to install the Prometheus-4 module or use the ISO Tool Patching guide.

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With the few steps listed below, you can also install signed 5.03 HEN + 5.03 GEN-C on your PSP Still on 5.03 and can’t get ChickHen R2 to run for you? Not to worry, with homebrew devs now able to sign their applications to run on OFW directly, PSP owners just like with 6.35 Hen using the Signed 6.35 Hen can now run Davee’s chickHen without you trying to make the TIFF hack work.

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