eMMC direct connection problem [Answered]

dear medusa team i have 3 pieces sph d710 that turn on blue lamp i want to recover userdata from them i removed the emmc and connected the pins directly to the chip and i am 100 percent sure of my connections the whole problem is it keeps giving me that same error 001 for both phone but i connect any other chips its normal and connects normally can you please tell me what the problem is and how will i be able to recover data from the emmc chip the phones are samsung sph d710 thanks a lot