Sony's site for System Software Upgrades offers a single downloadable for 6.61 seemingly appropriate for all PSP models, the md5 of which is 6be8878f475ac5b1a499b95ab2f7d301. On the contrary, this reporsitory of official firmwares has one for non-Go models, with the same md5 as Sony's, and one for Go models, with md5 fd0f7d0798b4f6e6d32ef95836740527.
I was intending to follow hackinformer's guide to install 6.61 PRO-C2 as a Temporary CFW and it instructs to download the latest Official Firmware 6.61. Which one should I install on my PSP Go? If the one from Sony's page is good for all PSP including PSP Go models, where did the one purportedly specific to Go models come from and how is it different?
My PSP Go is on 6.60.
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