How to access online [PS3 CFW 3.55]

Hello, I need your help please Image may be NSFW.
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I have PS3 CFW-Compatible 3.55
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And I'm not being able to access online because of the old version [PS3 CFW 3.55].
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And this tool SEN Enabler does not support my firmware, And I can't upgrade the firmware, Because there are many things do not support the latest firmware.
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There is an old way, I already applied it but sadly it didn't work!
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By the following steps:-
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1) Copy charles-proxy-ssl-proxying-certificate.crt somewhere and rename to CA24.cer
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How to access online [PS3 CFW 3.55]