iPad Air Touch Unresponsive - How To Fix?

The iPad Air Touch Screen Not Working annd Touch Screen Unresponsive, This happens to most of us, Don't worry, this article will tell you in detail how to solve this problem and Get your iPad Air Touch Screen back to work.






The iPad turns on normally. Run touch function test – touch failure appears. 

Step 1. First, Disassemble the iPad and remove LCD and Touch Screen Digitizer. Replace with a new Touch Screen Digitizer. 

Step 2. Then power on and test. Touch failure still exists. We can see that touch failure appears mainly on one specific area. 

Step 3. Take down LCD and Touch Screen Digitizer. Remove screws and detach iPad Air battery. 

Step 4. Switch to diode mode and measure the resistance between J6640 and grounding, J6620 and grounding. Resistance value between J6640 and grounding is normal. Measured resistance value between 35# of J6620 and grounding is 293. Measured resistance value between 33# of J6620 and grounding is 384. Abnormal value for the two Pins. Normal value should be 690. Since 33# and 35# of J6620 connect with U6650 directly, we can conclude that U6650 broke down. 



Step 5. Stick connectors next to U6650 with high temperature adhesive tape to protect them from high temperature damage. 

Step 6. Take down the shield plate with Hot Air Gun at 340℃. Apply some BGA paste flux around U6650 and take down U6650 with Hot Air Gun at 340℃. 

Step 7. Clean tins on the bonding pad with Soldering Iron and then clean the bonding pad with PCB Cleaner. 

Step 8. Apply some BGA paste flux to the bonding pad. Align the new U6650 to the right place and solder with Hot Air Gun at 340℃. 

Step 9. Wait for the logic board to cool for 5 minutes. Then clean with PCB Cleaner. Measure the resistance between 33# and grounding, 35# and grounding. Normal resistance value this time. 

Step 10. last, Assemble the iPad and test. Touch function back to normal. Fault cleared. 



Tips: More information about phone repair guides and tools, you can ask help for Vip Pro Shop Team.

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