Tristar Tester

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  • Product Description
  • Warranty
  • Delivery


  • Test your Tristar/Hydra Chip or battery
  • Diagnose your iDevice's charging issue
  • Small & lightweight and easily portable
  • Helps to test hardware errors
  • Great for smartphone repair professionals and sellers
  • Extremely convenient to use
  • Able to test the phone Tristar without the need to open up the device all over again


  • Step 1: Connect your JC U2 via lighting USB cable to power on (use an apple power plug not pc usb port)

  • Step 2: Click the right function button to select language (language option available only on when you power on JC U2)

  • Step 3: Connect your iPhone/iPad with JC U2 via data connecting cable

  • Step 4:  Optional for you to click the left  function button to switch vertical or horizontal display

  • Step 5: Check the available data of U2 (Tristar) chip and SN,  status  showing as NG or OK for each testing results.


    • NG = BAD

    • OK = Good



  • All iOS Devices with a Lightning Port


    Screenshelf offers fast, flexible delivery to anywhere in Ireland. All orders placed before 5.00pm are processed and dispatche the same working day. Items are sent via An post or by various other courier services.We use a tracked mail service for our security and the security of our customers.

    • Standard Shipping - 1 to 2 days.

    • Fastway Couriers - Next Day Delivery.

    • An Post Priority - Next Day Delivery.

    • UK Delivery - UPS Next Day Delivery.

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