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.

Comments

Post a Comment

Popular posts from this blog

2021 Latest MagicAWRT Adapter Restore Tool for Apple Watch

Image
 Here we have the latest MagicAWRT adapter Apple Watch restore tool in 2021, and MagicAWRT offers its complete solutions to fix many apple watch problems. MagicAWRT Adapter is intended for solving service problems with Apple Watch S0/SE/S1/S2/S3/S4/S5/S6 (38 mm / 42 mm / 40 mm / 44 mm). It can solve problems such as white apples, exclamation points, restarts, stuck on screens, poor touch, ID lock, etc. It also can fix related issues that are caused by  Apple Watch glass digitizer touch replacement. Apple Watch Firmware for MagicAWRT Adapter Restore Tool will not be provided, and the customer needs to download themselves. 1. Using MagicAWRT Adapter to reset Apple Watch Data with or without Backup MagicAWRT Recovery Adapter Restore Tool is the best iOS data restore software in the market because of its ease of use and attractive user interface. Most Apple Watch users data losses are due to accidents, failed jailbreaks, hardware and software failures, factory resets, and theft. It would
Read more

My iPhone Got Wet! How To Fix iPhone Water Damage?

Image
 Water damage tends to worsen with time, and it is among the more challenging DIY repairs to undertake, so this guide covers the basic iPhone repair of water damage.  1. Remove iPhone from the water and Turn it off Remove your iPhone from the water as soon as safely possible. Minimize the length of time the iPhone and water are in contact to minimize corrosion. If your phone is still on when removed from the water, attempt to turn it off. If it's off, do not attempt to turn it on. 2. Check External Ports Check any external ports (charging port, headphone jack, SIM card slot, etc.) for corrosion as well. These may have to be cleaned out with alcohol and a  Anti Static Brush , or replaced if cleaning is not practical. Pay special attention to cable ends, battery contacts, connectors, pins, and fuses, as these parts are prone to corrosion and can easily cause the phone to malfunction. Test all the buttons and features (such as the microphone, s
Read more

Free download: Ford / Mazda odometer correction tool software

Image
New Mazda OBD2 Tool is the Digital Odometers, Airbag reset and immobilizer programming cables by OBD2, it is a newly OBD2 device for Mazda Vehicle. Mazda OBD2 Tool is Mazda OBD2 Odometer correct and Airbag module repair tool, especially for Mazda vehicle from 2005-2015.It is OBD2 user friendly tool, used for calibrate odometer and airbag repair. For Mazda Digital Odometers programming and Airbag reseting Tool by OBD2 Mazda OBD Tool is used to calibrate the instrument for all CAN-bus Mazda cars from 2005 to 2015 including MADZA 3/ MADZA 6 / MADZA CX5 / MADZA CX7, as well as reset the airbag/SRS for Mazda with XC236X chip. 2017 New Ford / Mazda OBD2 Tool is the Car Digital Odometers and immobilizer programming cables, and Ford OBD2 Tool and Mazda OBD2 Tool is used to mainly perform Ford / Mazda Digital Odometers, instrument calibration and immobilizer key matching. Here, VIP Pro Shop Team will share the software download link for Ford OBD2 Tool and Mazda OBD2 Tool.
Read more