iPad Pro Touch Filter

There is a very common issue on the iPad Pros (Specifically the 12.9" 1st and 2nd Generations) where if the LCD/Digitizer Flex is unplugged without disconnecting the battery connection, a Filter corresponding with touch will blow and needs to be replaced to restore touch functionality.

Blown Backlight Filter, a good indicator of a blown touch filter.

Disconnect battery, check for continuity on Filter next to small capacitor as shown in the second image.

If no continuity, Filter/Coil is blown. Replace with a Coil with rating of 240ohms-350ma. Or take coil from Donor iPad Mini 1 like in the last image. Additionally, iPhone 6S touch filters can also be used (components L4211 and L4212 on 6s).

If the backlight filter is also blown, a 120ohm, 1.5a, size 0402 replacement can be found on iPad 4 (L2201), iPad 3 (L2201, L5761, L5760, L5714), iPad 2 (L2201, L5761, L5760, L5714), iPad Mini (L2201), iPad Mini 2 (L2201), and iPad Air (L7001).

What to look for

FPC Measurements

Replacement Filter/ Coils