BGA169 have wrong capacity C10 - 0.1uF. Some EMMC chips like SD5C25A-8G NOT detected with this adapter. I replaced C10 capacitor to 15 pF by forums.xgecu.com recommendation and now adapter works properly. Now all chips detect/read/write ok over this adapter. SELLER must fix this issue, C10 on BGA153/169 must be 15pF.