Need help updating ps3 error

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For the PS3 Slim, an additional letter (appendix) is added to the end of the model number to designate harddrive size.

From the chart above you can see that CECHJ, CECHM, and CECHQ were only released to a few regions.

They are extremely rare, so for console collectors they may be considered to be more valuable.

The PS3 Slim models uses PSP model naming nomenclature, 10xx, 20xx, 30xx, so a second generation PS3 (Slim) is CECH-20xx.

The last letter indicates the type: D = Demo, S = Game, M = ? Note that for some third party games, Sony may take it and repackage with appropriate material for other territories, thus the game become first party as well.