3 in 1 Universal IP Test Card For iPhone/Android Signal Testing Tool Mobile Phone SIM Test Card

• This allows you to very quickly check signal working status of the three card slots.
• This allows you to very quickly check signal working status of the three card slots.
• This allows you to very quickly check signal working status of the three card slots.
• This allows you to very quickly check signal working status of the three card slots.
• The switch is used to switch between which sim card you want to use

Function: IP universal signal test card tray Preliminary diagnostic signal failure For iPhone/ipad (card version) three-network universality Mobile card Unicom card Telecom card Note: This product is suitable for the whole iPad (card version) series, does not support other brands This product has three card slot positions, which can be used to place Nano SIM card of any operators. The switch is used to switch the working status of three card slots. Feature: Three different SIM cards are placed in three card slots Three switchs for switching 3 different SIM cards Lanyard hole Immersion gold process not easy to wear How to use IP universal test card Insert the commonly used three major operators nano sim into the three card slots Making the front of the slot surface toward you, and insert it horizontally into the SIM cart slot Swith SIM. Adjust the switch to any of the three ABC gears to be used. The operator to be tested simultaneously pulls out the entire test deck and pushed it in to re-detect the new operator There is a nano sim card pin test point on the test card deck, which is convenient for repairing the mobile phone without reading the card for quick detection. When testing the signal of SIM card at the test point, it is necessary to turn off the phone and measure the ground resistance. When the phone is turned on, the voltage signal and waveform can be tested.