Cant Draw Diagonal Lines After Screen Replacement: Difference between revisions

Cant Draw Diagonal Lines After Screen Replacement
Device	IPad Pro 11in 3rd Gen, IPad Pro 11in 4th Gen, IPad Pro 12.9 3rd Gen, IPad Pro 12.9 4th Gen, IPad Pro 12.9 5th Gen, IPad Pro 12.9 6th Gen, IPad Mini 6
Affects part(s)	Display
Needs equipment	JCID V1S or JCID 1Vs Pro
Difficulty
Type

VisualWikitext

Latest revision as of 21:40, 20 September 2025

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Problem description

After replacing the screen the Apple pencil can not be used to draw diagonal lines.

Solution

The Solution is simple however we need a special tool made by JC.

You can use the JC V1SE or the JC V1S Pro.

You have must have iPad Screen Repair Adapter.

First Connect the flex cable to the right adapter for your model

Then Connect the adapter board to the iPad like this

Now Connect the ORIGINAL screen the iPad had installed, and power on the device.

Next on the Programmer use the buttons to select the Model of your device

Then connect the Flex to the programmer like this

Now press the power button to light the screen up and press the read button on the JCID Programmer

After reading the old information from the screen you can turn off the iPad and plug your new screen in.

With the new screen in connected press the power button to light up the screen and click on Write in the JCID Programmer

After this you can turn off the device and remove the JCID adaptor and plug in the new screen like normal.

Final Testing

Open the notes app and make sure your diagonal lines made with the Apple Pencil are in a straight line.

@@ Line 1: / Line 1: @@
 {{stub}}
 {{Repair Guide
-|Device=Xbox One X
+|Device=IPad Pro 11in 3rd Gen, IPad Pro 11in 4th Gen, IPad Pro 12.9 3rd Gen, IPad Pro 12.9 4th Gen, IPad Pro 12.9 5th Gen, IPad Pro 12.9 6th Gen, IPad Mini 6
-|Affects parts=Motherboard
+|Affects parts=Display
-|Needs equipment=Multimeter
+|Needs equipment=JCID V1S or JCID 1Vs Pro
-|Type=Soldering
-|Difficulty=3. Hard
 }}
 == Problem description ==
@@ Line 12: / Line 10: @@
   -->
-This guide will go over diagnosing the a Xbox One X with no signs of life.
+After replacing the screen the Apple pencil can not be used to draw diagonal lines.
-== Symptoms ==
-<!--
+[[File:Diagonal issue.png|thumb|Example of issue]]
-Detail all measurable or observable symptoms in this section.
--->
-* The device does not turn on
 == Solution ==
@@ Line 23: / Line 18: @@
 If the issue has a single, specific solution, provide it in this section and delete the sub-headers below. Otherwise, if there are multiple potential causes for the problem, outline the process of identifying the root cause and offer corresponding solutions below.
--->
+-->The Solution is simple however we need a special tool made by JC.
-There are 2 things that can cause a no power issue on the Xbox One X the Power Supply or a problem on the Motherboard.
+You can use the JC V1SE or the JC V1S Pro.
+[[File:JC V1S Pro.webp|thumb|JC V1S Pro|center]]
-=== Diagnostic Steps ===
-* The first thing to check is if the power supply is producing 12V, if 12V are not present this can be due to a faulty power supply or a short on the motherboard stopping the power supply from creating the 12V line.
+[[File:JC V1SE.webp|thumb|JC V1SE|center]]You have must have iPad Screen Repair Adapter.
-[[File:Xbox One X 12V input.png|center|thumb|Xbox One X 12V input]]
-* If 12V are present the next thing to check is if the 5V Standby is present.
-* If 5V is present the next thing to do check the 1.1V, 3,3V and 1.8V lines
+[[File:IPad Screen Repair Adaptor.webp|thumb|iPad Screen Read And Write Adaptor Fix Wavy Lines With Apple Pencil - JCID|center]]
-[[File:Xbox One X STBY voltages.png|center|thumb|Xbox One X STBY voltages]]
-* If these voltages are all Standby voltages are present the issue may be the Southbridge IC.
-* If 3.3V is missing this may be due to a faulty U54, check for shorts around this ic made sure the 1.8VSTBY is present, the U54 will not turn on without 1.8V.
-*A common issue to have is 2.4V on the 3.3V line, 0.44V on 1.8V the HDMI retimer IC is the cause for this, you can test it by removing it from the board the console will turn on and then off without the Retimer.
-[[File:Xbox One X Retimer IC .png|center|thumb|629x629px|Xbox One X Retimer IC ]]
-== Repair Steps ==
-If 12V are not present remove the PSU in diode mode measure the Positive side of the PSU terminal on the motherboard it should have a high reading between 0.400 and 0.500, if ok replace the Power Supply.
-If you get a reading of 0.000 it means there is a short on the 12V check the [[Short Circuits - Repair Basics|Short Circuits]] page on a guide on how find the short.
-If 5V is not present on the Motherboard this is probably due to a short on this line once again with your multimeter in diode mode measure the line and check if the value is high, it is common to have a short on a random cap in this line, If you do have a short on a capacitor you check with schematics the value to replace it.
+First Connect the flex cable to the right adapter for your model[[File:Flex Connected.png|thumb|center]]Then Connect the adapter board to the iPad like this
+[[File:Flex Adapter.png|thumb|Flex Adapter|center]]
-If 3.3V STBY is not present replace the U54 IC(TPS56C215)
-If 3.3V and 1.8V lines are lower then expected replace the Retimer IC U29 (TDP158).
-To replace any of these chips falow the steps bellow
+Now Connect the ORIGINAL screen the iPad had installed, and power on the device.
-==== Replacing the chip ====
+Next on the Programmer use the buttons to select the Model of your device
-Desoldering the Old Chip:
-* Apply heat to the chip from above using a hot air station or soldering iron. Heat for several seconds until the factory solder begins to melt.
+[[File:Ipad model.jpg|center|thumb|Choose iPad Model]]
-* Gently nudge the chip with tweezers. If it moves, it’s ready to be lifted off.
-* While the board is still hot, use solder wick and a soldering iron to clean old solder from the motherboard pads.
-Preparing the Motherboard and New Chip:
+Then connect the Flex to the programmer like this
-* Apply a thin layer of new solder to the cleaned motherboard pads. Avoid excess solder, especially in the center square.
+[[File:JCID Flex Connected.png|thumb|JCID Flex Connected|center]]Now press the power button to light the screen up and press the read button on the JCID Programmer
-* Pre-tin the pads of the new chip with a small amount of solder to ensure good contact.
-Soldering the New Chip:
+After reading the old information from the screen you can turn off the iPad and plug your new screen in.
-* Align the new chip on the motherboard. Match the dot on the chip to the small triangle marker on the motherboard for correct orientation.
+With the new screen in connected press the power button to light up the screen and click on Write in the JCID Programmer
-* Heat the chip from above using a hot air station. Watch for the solder to melt, indicated by slight chip movement.
-* Gently touch the chip with tweezers to let surface tension settle it into place. Avoid excessive force.
-Inspection and Cleanup:
+After this you can turn off the device and remove the JCID adaptor and plug in the new screen like normal.
-* Inspect all connections under a microscope . Ensure there are no solder bridges between pins.
-* If any connections look faulty, gently touch the affected pad with a soldering iron to reflow and correct.
 == Final Testing ==
-After assembling the console, ensure every function is working as expected.
+Open the notes app and make sure your diagonal lines made with the Apple Pencil are in a straight line.
+[[File:Issue Fixed.gif|center|thumb|Issue Fixed]]
-If you replaced the Retimer IC mare sure the console is able to output image in 4K.