Sell Dual SIM Cards

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Product Origin:China
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Description:Functions: 1) Double SIM card can select one network to work automatically after power on the mobile phone 2) If you want to use another network, please power off the mobile phone, and three seconds later then power on again. Installations: 1) There are many design on SIM card but have the same logical criteria, the metal area can not be damage (Marker 1-6) 2) Put the transparent sticker on the front of SIM card and cut the sticker by followed the dot line 3) Install two SIM cards in the universal twin card and cover them with stainless steel plate (refer to diagram 1) 4) Insert the universal twin card to the mobile phone and ready 5) If you want to resume the SIM card to original, just insert the cutted SIM card into the resume card (refer to diagram 2) Guaranty period: Three months of guaranty. Man-made fault, used by mistake shall not be covered in the scope of the guaranty. Remark: If insert card appear, there may be bad contact on the card. Please add a Cushion sticker on the card cover (for without SIM holder card only).