the only way to avoid bricking is to never use flash accessing eboots, this includes homebrew and firmware updates that write flash data. and the only way to ensure no flash access is to run the eboots through the pspsafe software the checks for any flash access (read or write) and warns you. there are some measures to un-brick psp's (D_A's custom firmwares) but these involve writing to the flash in the first place (bricking chance) and only cover the gameboot or font corruption and nothing covers the init.prx, so the only true method is no flash based eboot.pbp's

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