IPhone XR is bootlooping and fails itunes update with error 4013 and MacBook Pro A2485: Difference between pages

MacBook Pro A2485
Manufacturer	Apple
Code name
Release date
Device type

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Revision as of 06:36, 4 November 2025

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Guides

Explanatory Guides

Repair Guides

	Affects part	Type	Difficulty
How To Repair MacBook Pro A2485 Keyboard and Trackpad Not Working and Screen Blackouts Every 2 Seconds	Lid Angle Sensor (LAS)		2. Medium

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Device pictures

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PCB pictures

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Reference measurements (also schematics if available)

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More Information/External Sources

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 {{stub}}
-{{Repair Guide
+{{Device page
-|Device=
+|Manufacturer=Apple}}
-|Affects parts=
-|Needs equipment=
-|Type=
-|Difficulty=
-}}
-[[File:Placeholder image.jpg|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]]
+== Guides ==
-== Symptoms ==
+{{List Guides}}
-<!--
-Detail all measurable or observable symptoms in this section.
--->
-* Shows apple logo for about 5 seconds, then blank, then apple logo, then blank
-* Sometimes it shows a green flash for a second
-* If you try to flash an update or restore, it fails right away with an Error 4013
-* If you flash on 3u tools, it fails at 19%
-== Solution ==
+== Device pictures ==
-<!--
+<gallery showthumbnails="1">
-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.
+File:Example device pictures.jpg
+</gallery>
--->
+== PCB pictures ==
+<gallery showthumbnails="1">
+File:Example pcb pictures.jpg
+</gallery>
-Flex cables:
+== Reference measurements (also schematics if available) ==
+<gallery showthumbnails="1">
+File:Example measurement pictures.jpg
+</gallery>
-* Step 1 in this case is always unplug all the flex cables.
+== More Information/External Sources ==
-* Ideally test the board with known good Screen, Battery & Charging Port.
+<!--
-* If it boots, then one of your flexes is the cause.
+You can manually link to external sources for additional information that might not fit here but are useful such as BIOS image dumps, firmware, etc!
-** 99% of the time, it is the ear speaker flex. The Flood Illuminator and/or the ALS has liquid damage.
+-->
-** The ear speaker flex is paired to the logic board for Face ID.
-** If you want to keep Face ID, you'll need to repair the flex. If Face ID is not important, then you can just replace the flex.
-*** To repair the flex, you'll have to desolder the Flood illuminator  & clean out all the corrosion, then place them back.
-*** If the corrosion is too severe & it damaged the flex, then you'll need to swap the Flood Illuminator and ALS to a new flex, otherwise, you'll lose Face ID.
-** In some cases, another flex can cause this issue like a bad charging port.
-*** In this case, just replace the flex
-Please Note: If the phone is stuck in Recovery Mode because it failed at the Error 4013, you have 2 options
-# Kick the device out of Recovery Mode using 3U Tools. In the main screen of 3U Tools, you'll see a button that says "Exit Recovery Mode"
-# You can attempt another update or restore.
-Assuming you fixed the root cause of the bootlooping issue, the above 2 options should get you a working phone.
-If it still fails at 4013 or still bootloops, then you haven't solve the issue.
-Migrated from old wiki