Originally posted by anus
I'm sorry, I'm dumber than I thought but I don't quite understand...
If you got a E3 flasher do at least 3 back up dumps & check them with nor inspector
Check your dumps are exactly (16,777,216 bytes)
If you are on 4.70 OFW you should use a 4.70 patcher like this one
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Get 4.70 nor/nand patcher
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After you have flashed the patched bkpps3.bin back onto your PS3 install a 4.70 CFW
Then if you want to install a firmware lower than 4.70 use a 999 downgrader.