I agree w/ one of the other posters. You probably had a bad digitizer on this, unless of course, one of the input connectors for the digitizer got damaged during the teardown, when you were removing the old digitizer connectors. If that's the case, soldering a new connector (whichever is broken) onto the board will work, but those are hard to find, and that's a particularly hard job to do. (source - https://www.imobilerescue.com/ipad-air-5-screen-repair/ )
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I agree w/ one of the other posters. You probably had a bad digitizer on this, unless of course, one of the input connectors for the digitizer got damaged during the teardown, when you were removing the old digitizer connectors. If that's the case, soldering a new connector (whichever is broken) onto the board will work, but those are hard to find, and that's a particularly hard job to do.
I agree w/ one of the other posters. You probably had a bad digitizer on this, unless of course, one of the input connectors for the digitizer got damaged during the teardown, when you were removing the old digitizer connectors. If that's the case, soldering a new connector (whichever is broken) onto the board will work, but those are hard to find, and that's a particularly hard job to do. (source - https://www.imobilerescue.com/ipad-air-5-screen-repair/ )