[Solved] How to Fix iOS 18 Fast Charging Not Working After Update

If you recently updated your iPhone to iOS 18, you may have noticed an issue with fast charging no longer working properly. It's frustrating when fast charging suddenly stops working, especially if you relied on it to quickly charge your iPhone.

In this guide, I'll share the details of the fast charging problems I faced after updating to iOS 18 in hopes it will help others troubleshoot and resolve the issue. If you are encountering similar inconsistent or iOS 18 fast charging not working, keep reading for some suggested fixes.

• Part 1. Why is my iPhone not charging fast after update?
• Part 2. How to Fix Fast Charging Not Working in Fastest & Easiest Way - Without Data Loss
• Part 3. How to Fix Fast Charging Not Working in Other Common Ways
• 3.1 Check & Clean your charging port
• 3.2 Examine the Charging Cable and the Adapter
• 3.3 Factory Reset Your iPhone
• 3.4 Change Your Battery
• Part 4. People Also Ask about How to Fix Fast Charging Not Working

Part 1. Why is my iPhone not charging fast after update?

One of the most frustrating issues that can happen after updating your iPhone is fast charging suddenly not working. You may have relied on fast charging to quickly top up your iPhone battery when needed. So what causes iOS 18 fast charging not working after update?

Here are some short reasons why an iPhone may not be fast charging after an update:

• Incompatible or damaged cable
• Outdated charger without USB-C PD support
• Charger wattage too low (should be 18W+)
• Fast charging works only up to 80% battery level
• Software bug introduced in iOS update
• iPhone stops charging after a few seconds

Part 2. How to Fix Fast Charging Not Working in Fastest & Easiest Way - Without Data Loss

If you find your iPhone cannot fast charge after updating to iOS 18, there must be something wrong in your iOS system causing the issue. Fortunately, there is a reliable solution—UltFone iOS System Repair.

UltFone iOS System Repair is a powerful tool designed to fix various iOS glitches, bugs, and system issues. It provides an all-in-one solution for common problems you may encounter after an iOS update like iOS 18 fast charging not working. The key advantages and features of UltFone iOS System Repair include the following:

• Fixes issues without data loss, so you don't have to worry about losing photos, messages, etc.
• The high success rate in resolving different types of iOS system problems, including being stuck on the Apple logo, recovery mode, bootloop, and downgrade issues.
• User-friendly interface that is easy to use for both beginners and pros.
• Compatible with a wide range of iOS devices and supports the latest iOS versions, including iOS 18 version.
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To use UltFone iOS System Repair to resolve iOS 18 fast charging problems, follow these steps:

• Step 1 Connect your iPhone to your computer and open the UltFone iOS System Repair app. Click "Start" after your device connects.
• Step 2On the next screen, click "Standard Repair" to proceed with the repair process.
• Step 3Click the "Download" button to download the firmware package matched to your iPhone model.
• Step 4Once the firmware downloads successfully, click "Start Standard Repair" for the tool to start fixing iOS issues causing the fast charging problem.
• Step 5Wait patiently while the app repairs your iOS system. Your iPhone will automatically restart when finished.

Part 3. How to Fix Fast Charging Not Working in Other Common Ways

3.1 Check & Clean your charging port

It's easy for lint, dust, and other debris to accumulate in the iPhone's Lightning charging port after regular use. All this debris acts as an insulator and can interrupt the electrical contact between the charging cable and the port.

This poor connection can prevent your iPhone from fast charging properly after an iOS update. Taking the time to carefully clean out the charging port is an easy first troubleshooting step that may get fast charging working again.

• 1. Use a toothpick, soft brush, or compressed air to gently remove dust and debris from the charging port. Avoid using metal tools.
• 2. Carefully scrape the port with a non-conductive pick to dislodge particles.
• 3. Check if fast charging works after cleaning the port.

3.2 Examine the Charging Cable and the Adapter

One of the most common reasons fast charging stops working is because of an issue with the Lightning cable or wall charger used. Cables can fray or become damaged over time, disrupting the electricity flow. Chargers can malfunction or lack proper wattage to enable fast charging if your charger keeps failing out of iPhone.

Carefully inspecting both your Lightning cable and wall adapter for any damage or defects, and replacing anything faulty, can often resolve fast charger not charging fast problems. Don't overlook these key hardware components when troubleshooting.

• 1. Inspect Lightning cable for damage like frayed wires or broken connectors.
• 2. Wiggle the cable while charging to check for intermittent connections.
• 3. Verify wall adapter supports 18W+ Power Delivery for fast charging.
• 4. Replace the cable and/or adapter if either seems faulty.

3.3 Factory Reset Your iPhone

Fast charging failure after an iOS update is commonly caused by some software error or incompatibility. Resetting your iPhone back to factory default settings wipes out any problematic software causing charging system issues.

It gives your iPhone a clean slate and a fresh iOS install. While resetting means you'll have to restore from a backup, it's an effective troubleshooting step for software-related iPhone does not charge problems.

• 1. Backup iPhone data first.
• 2. Go to Settings > General > Reset.
• 3. Select "Erase All Content and Settings" to wipe and reset your iPhone.
• 4. Restore data from the backup after the reset completes.

This will wipe your iPhone and reinstall a clean iOS version. You can then restore your data from the backup. With all settings and content erased, fast-charging problems are often resolved. Just be aware you may lose some data in the process.

3.4 Change Your Battery

Over years of chemical aging and charge cycles, iPhone batteries slowly degrade and lose capacity. Very old batteries with significantly reduced capacity can struggle to provide the sustained power delivery needed for fast charging.

Replacing an old, weak battery can often rejuvenate fast charging capability. Check your battery health and consider a swap if capacity is lower than 80%.

• 1. Check battery health in Settings > Battery > Battery Health.
• 2. Consider replacing the battery if capacity falls below 80%.
• 3. Get an official Apple battery replacement to restore fast charging.

Just be prepared for the high cost of an official Apple battery replacement.

Part 4. People Also Ask about How to Fix Fast Charging Not Working

Q1. Is fast charging bad for your phone?

No, fast charging is generally not bad for your phone battery. Modern fast charging technologies include safeguards to protect battery lifespan. However, keeping your phone battery between 20-80% charge is ideal.

Q2. Does iOS update affect charging?

Yes, iOS updates can sometimes affect iPhone charging. Updates may introduce bugs that interfere with normal charging functions. Fast charging issues, in particular, are a common complaint after iOS updates.

Final Word

Fast charging is an incredibly convenient iPhone feature that we often take for granted - until it stops working properly. An iOS update being the culprit behind sudden fast charging failure is frustratingly common.

Tools like UltFone iOS System Repair can also swiftly fix software issues hampering charging. With some targeted trial and error using these tips, you should be able to restore the full fast charging capabilities that make powering up your iPhone so much faster and easier.