How to use Dual Boot Mode
After upgrade E3 with e3 firmware, it boot ps3 with Hermes V4B FW.
If you insert Micro SD into e3, even a blank SD, it will boot ps3 with Kakaroto FW.
How to use free PSGROOVE
After upgrade E3 with e3 firmware, then do as following:
1: Download any PSGROOVE, if it is hermes fw, change name into h, so will be h.hex , and copy into E3_4M_STICK, then can break ps3 with free hermes fw (any version hermes fw works)
2: If it is Kakaroto fw, change name into k, so will b k.hex , and copy into E3_4M_STICK, then can break ps3 with free Kakaroto fw (any version Kakaroto fw works) be careful need change into small letter.
How to copy backup manager. Download and copy into E3_4M_STICK.
E3 Card Reader have lots of other function, it will make public later.