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IPhone XR is bootlooping and fails itunes update with error 4013 and File:PS3 Slim Wifi 1.8V.png: Difference between pages

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PS3 Slim J7L Voltages
{{Repair Guide
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== Symptoms ==
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Detail all measurable or observable symptoms in this section.
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* 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 ==
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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.
 
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Flex cables:
 
* Step 1 in this case is always unplug all the flex cables.
* Ideally test the board with known good Screen, Battery & Charging Port.
* If it boots, then one of your flexes is the cause.
** 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

Latest revision as of 20:35, 24 May 2025

PS3 Slim J7L Voltages