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How to Update an Old iPhone

by Suzanne Kantra on September 21, 2026

Close-up of an iPhone 16 Pro Max on a desk showing the About screen with iOS 27.0 and device model information.

Suzanne Kantra/Techlicious composited by ChatGPT

For the first time in years, Apple hasn't dropped any older iPhones from its latest major operating system: every iPhone that can run iOS 26 can also be upgraded to iOS 27. That includes the iPhone 11 and later and the second- and third-generation iPhone SE.

However, older iPhones won't get every iOS 27 feature. Apple Intelligence requires an iPhone 15 Pro or iPhone 15 Pro Max, or an iPhone 16 model or later.

Consult the chart below to find the latest version of iOS your phone supports. To identify which iPhone model you own, go to Settings > General > About. There you'll find the Model Name and Model Number. If the Model Number field shows a string ending in "/A," such as MQ0X3LL/A, that's the part number. Tap it to reveal the model number, which begins with the letter A followed by four digits.

If you own an iPhone 7 or an earlier model, you can also find the model number in the fine print on the back of the iPhone.

The Latest Version of iOS by iPhone Model

Devices

Latest Version of iOS

iPhone (2007), Model number: A1203 iOS 3.1
iPhone 3G (2008), Model Numbers: A1324, A1241 iOS 4.2
iPhone 3GS (2009), Model Numbers: A1325, A1303 iOS 6.1.3
iPhone 4 (2010), Model Numbers: A1349, A1332 iOS 7.1.2
iPhone 4s (2011), Model Numbers: A1431, A1387 iOS 9.3.6
iPhone 5 (2012), Model Numbers: A1428, A1429, A1442
iPhone 5c (2013), Model Numbers: A1456, A1507, A1516, A1529, A1532
iOS 10.3.4
iPhone 6 (2014), Model Numbers: A1549, A1586, A1589
iPhone 6 Plus (2014), Model Numbers: A1522, A1524, A1593
iPhone 5s (2013), Model Numbers: A1453, A1457, A1518, A1528, A1530, A1533
iOS 12.5.7
iPhone 7 (2016), Model Numbers: A1660, A1778, A1779 (Japan)
iPhone 7 Plus (2016), Model Numbers: A1661, A1784, A1785 (Japan)
iPhone SE (1st generation) (2016), Model Numbers (A1723, A1662, A1724
iPhone 6s (2015), Model Numbers: A1633, A1688, A1700
iPhone 6s Plus (2015), Model Numbers: A1634, A1687, A1699
iOS 15.8.8
iPhone X (2018), Model Numbers: A1865, A1901, A1902 (Japan)
iPhone 8 (2017), Model Numbers: A1863, A1905, A1906 (Japan)
iPhone 8 Plus (2017), Model Numbers: A1864, A1897, A1898 (Japan)
iOS 16.7.12
iPhone XR (2018), Model Numbers: A1984, A2105, A2106 (Japan), A2107, A2108 (China mainland)
iPhone XS (2018), Model Numbers: A1920, A2097, A2098 (Japan), A2099, A2100 (China mainland)
iPhone XS Max (2018), Model Numbers: A1921, A2101, A2102 (Japan), A2103, A2104 (China mainland)
iOS 18
All models capable of running iOS 26 can run iOS 27 iOS 26
iPhone 18 Pro (2026), Model numbers: A3472 (USA, Puerto Rico), A3713 (Japan, Guam, USVI, Canada, Mexico, Saudi Arabia, KSA, UAE, Oman, Kuwait, Bahrain, Qatar), A3715 (China mainland), A3714 (other countries and regions) iPhone 18 Pro Max (2026), Model numbers: A3473 (USA, Puerto Rico, A3716, Japan, Guam, USVI, Canada, Mexico, Saudi Arabia, KSA, UAE, Oman, Kuwait, Bahrain, Qatar), A3718 (China mainland), A3717 (other countries and regions)
iPhone 17e (2026), Model numbers: A3575 (United States, Puerto Rico, Bahrain, Canada, Guam, Japan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, and U.S. Virgin Islands), A3635 (China mainland), A3634 (other countries and regions)
iPhone Air (2025), Model numbers: A3260 (United States, Puerto Rico, Bahrain, Canada, Guam, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, and U.S. Virgin Islands), A3516 (Japan), A3518 (China mainland), A3517 (other countries and regions)
iPhone 17 (2025), Model numbers: A3258 (United States, Puerto Rico), A3519 (Bahrain, Canada, Guam, Japan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, and U.S. Virgin Islands), A3521 (China mainland), A3520 (other countries and regions)
iPhone 17 Pro (2025), Model numbers: A3256 (United States, Puerto Rico), A3522 (Bahrain, Canada, Guam, Japan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, and U.S. Virgin Islands), A3524 (China mainland), A3523 (other countries and regions)
iPhone 17 Pro Max (2025), Model numbers: A3257 (United States, Puerto Rico), A3525 (Bahrain, Canada, Guam, Japan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, and U.S. Virgin Islands), A3527 (China mainland), A3526 (other countries and regions) iPhone 16e (2025), Model numbers: A3212 (United States, Puerto Rico), A3408 (Bahrain, Canada, Iraq, Guam, Jordan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, and U.S. Virgin Islands), A3410 (China mainland), A3409 (other countries and regions)
iPhone 16(2024), Model numbers: A3081 (United States, Puerto Rico), A3286, (Bahrain, Canada, Iraq, Guam, Japan, Jordan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, U.S. Virgin Islands), A3288 (China mainland, Hong Kong, Macao), A3287 (other countries and regions)
iPhone 16 Plus (2024), Model numbers: A3082 (United States, Puerto Rico), A3289, (Bahrain, Canada, Iraq, Guam, Japan, Jordan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, U.S. Virgin Islands), A3291 (China mainland, Hong Kong, Macao), A3290 (other countries and regions)
iPhone 16 Pro (2024), Model numbers: A3083 (United States, Puerto Rico), A3292, (Bahrain, Canada, Iraq, Guam, Japan, Jordan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, U.S. Virgin Islands), A3294 (China mainland, Hong Kong, Macao), A3293 (other countries and regions)
iPhone 16 Pro Max (2024) Model numbers: A3084 (United States, Puerto Rico), A3295 (Bahrain, Canada, Iraq, Guam, Japan, Jordan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates, U.S. Virgin Islands), A3297 (China mainland, Hong Kong, Macao), A3296 (other countries and regions)
iPhone 15 (2023), Model numbers: A2846 (United States, Puerto Rico), A3089 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A3092 (China mainland, Hong Kong, Macao), A3090 (other countries and regions)
iPhone 15 Plus (2023 Model numbers: A2847 (United States, Puerto Rico), A3093 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A3096 (China mainland, Hong Kong, Macao), A3094 (other countries and regions)
iPhone 15 Pro (2023) Model numbers: A2848 (United States, Puerto Rico), A3101 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A3104 (China mainland, Hong Kong, Macao), A3102 (other countries and regions)
iPhone 15 Pro Max (2023 Model numbers: A2849 (United States, Puerto Rico), A3105 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A3108 (China mainland, Hong Kong, Macao), A3106 (other countries and regions)
iPhone 14 (2022), Model numbers: A2649 (United States, Puerto Rico), A2881 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A2884 (China mainland, Hong Kong, Macao), A2883 (Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2882 (other countries and regions)
iPhone 14 Plus (2022), Model numbers: A2632 (United States, Puerto Rico), A2885 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A2888 (China mainland, Hong Kong, Macao), A2887 (Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2886 (other countries and regions)
iPhone 14 Pro (2022), Model numbers: A2650 (United States, Puerto Rico), A2889 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A2892 (China mainland, Hong Kong, Macao), A2891 (Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2890 (other countries and regions)
iPhone 14 Pro Max (2022), Model numbers: A2651 (United States, Puerto Rico), A2893 (Canada, Guam, Japan, Mexico, Saudi Arabia, and U.S. Virgin Islands), A2896 (China mainland, Hong Kong, Macao), A2895 (Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2894 (other countries and regions)
iPhone SE (3rd generation)(2022), Model numbers: A2595 (United States, Canada, Puerto Rico, U.S. Virgin Islands, Guam, Mexico, Saudi Arabia), A2782 (Japan), A2784 (Russia, Armenia, Belarus, Kazakhstan, Kyrgyzstan), A2785 (China), A2783 (other countries and regions)
iPhone 13 (2021), Model Numbers: A2482 (United States), A2631 (Canada, Japan, Mexico, Saudi Arabia), A2634 (mainland China, Hong Kong, Macao), A2635 (Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2633 (other countries and regions)
iPhone 13 mini (2021), Model Numbers: A2481 (United States), A2626 (Canada, Japan, Mexico, Saudi Arabia), A2629 (mainland China), A2630 (Armenia, Belarus, Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2628 (other countries and regions)
iPhone 13 Pro (2021), Model Numbers: A2483 (United States), A2636 (Canada, Japan, Mexico, Saudi Arabia), A2639 (mainland China, Hong Kong, Macao), A2640 (Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2638 (other countries and regions)
iPhone 13 Pro Max (2021), Model Numbers: A2484 (United States), A2641 (Canada, Japan, Mexico, Saudi Arabia), A2644 (mainland China, Hong Kong, Macao), A2645 (Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia), A2643 (other countries and regions)
iPhone SE (2nd generation) (2020), Model Numbers: A2275 (Canada, United States), A2298 (China mainland), A2296 (other countries and regions)
iPhone 12 (2020), Model Numbers: A2172 (United States), A2402 (Canada, Japan), A2404 (China Mainland, Hong Kong, Macao), A2403 (other countries and regions)
iPhone 12 mini (2020), Model Numbers: A2176 (United States), A2398 (Canada, Japan), A2400 (China mainland), A2399 (other countries and regions)
iPhone 12 Pro (2020), Model Numbers: A2341 (United States), A2406 (Canada, Japan), A2408 (China mainland, Hong Kong, Macao), A2407 (other countries and regions)
iPhone 12 Pro Max (2020), Model Numbers: A2342 (United States), A2410 (Canada, Japan), A2412 (China mainland, Hong Kong, Macao), A2411 (other countries and regions)
iPhone 11 (2019), Model Numbers: A2111 (Canada, United States), A2223 (China mainland, Hong Kong, Macao), A2221 (other countries and regions)
iPhone 11 Pro (2019), Model Numbers: A2160 (Canada, United States), A2217 (China mainland, Hong Kong, Macao), A2215 (other countries and regions)
iPhone 11 Pro Max (2019), Model Numbers: A2161 (Canada, United States), A2220 (China mainland, Hong Kong, Macao), A2218 (other countries and regions)
iOS 27

How to update an old iPhone

There are two ways to update an old iPhone. You can update it wirelessly from the iPhone itself, or connect it to a Mac or Windows PC and install the update from your computer.

How to update an old iPhone wirelessly

Back up your iPhone

Connect your iPhone to WiFi, then go to Settings > [your name] > iCloud > iCloud Backup. Make sure "Back Up This iPhone" is turned on and tap "Back Up Now." When the backup is complete, you'll see the date and time of your latest successful backup.

Check for and install the latest software

Go to Settings > General > Software Update. Your iPhone will check for updates and show the version of iOS that's currently installed. If an update is available for your iPhone, tap "Download and Install" and follow the onscreen instructions.

As of September 2026, iOS 27 is Apple's latest major iPhone operating system. However, the newest version available to you depends on your iPhone model. iOS 27 supports the iPhone 11 and later and the second- and third-generation iPhone SE.

How to update an old iPhone using your computer

Back up your iPhone

Connect your iPhone to your computer with the appropriate USB cable. You may be asked to enter your iPhone passcode or trust the computer.

On a Mac running macOS Catalina 10.15 or later, open Finder and select your iPhone in the sidebar. Click General, select "Back up all of the data on your iPhone to this Mac," and click "Back Up Now."

On a Windows PC, open the Apple Devices app, select your iPhone, and click General. Then click "Back Up Now." If you don't have the Apple Devices app installed, you can use iTunes instead.

On a Mac running macOS Mojave 10.14 or earlier, open iTunes, select your iPhone, and click "Back Up Now."

If you want your computer backup to include information such as saved passwords and Health data, select "Encrypt local backup" and create a password. Don't lose that password, because Apple can't recover it for you.

Check for and install the latest software

On a Mac running macOS Catalina 10.15 or later, open Finder, select your iPhone, click General, and then click "Check for Update." If an update is available, click "Download and Update" and follow the onscreen instructions.

On a Windows PC, open the Apple Devices app, select your iPhone, and click General. Select "Check for Update" if necessary, then click "Update" when an update is available.

On a Mac running macOS Mojave 10.14 or earlier, or on a Windows PC using iTunes, select your iPhone, click Summary, and then click "Check for Update." If an update is available, click "Download and Update." You may be asked to enter your iPhone passcode.

Updated on 9/21/2026 with information about iOS 27 and the Apple Devices app.


Topics

Tips & How-Tos, Computers and Software, Tablets & eReaders, Phones and Mobile, iPhone/iPad Apps


Discussion loading

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From Noor khan on March 05, 2022 :: 12:21 pm


I have 6 plus having A1522 model I would love to update my ios

Reply

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From Tammy on October 06, 2023 :: 2:57 pm


Did anyone ever help you?

Reply

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From Benjamin Pangio on October 11, 2023 :: 3:47 am


I have an iphone 6s Plus. I am unable to update up to iOS 15.7.9. Please assist me on how to update my old iphone 6s plus.

Software version: 12.5.7
Model Number: MGAA2X/A
Serial No: FK1NHED1G5QT

Reply

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From Abubakar Danbatta on May 26, 2023 :: 4:58 am


Good morning sir/Ma
My iPhone 6s is model A1688

Reply

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From Joaquin Graciano on June 17, 2023 :: 8:04 pm


I would like to have iOS 16 on my iPhone 5s

Reply

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From Avi on June 24, 2023 :: 6:29 pm


Unbelivable how I can easily update my iPhone 3gs

Reply

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From Maggie Jamieson on July 27, 2023 :: 11:42 am


Hi I am trying to update my IOS from 10.3.3 to IOS 14

Reply

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From Chocho on September 23, 2023 :: 7:05 pm


I want my iPhone 7 to have an ios16

Reply

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From Mike Gentile on October 26, 2023 :: 7:31 pm


I have an old I pad mini with a 9.5 os. When I pull up a web site in google or yahoo it displasy text no graphis or video.  Is there a way to upgrade the os?

Reply

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From Sipho on December 05, 2023 :: 5:36 pm


How to update ipad2 ,model A1396

Reply

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From Harry Reinhardt on August 08, 2024 :: 6:02 pm


I have an IPhones 6s and would like to update from iOS 12. to 15 or higher.

Kind regards
Harry

Reply

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From bizhan on December 04, 2024 :: 7:22 am


this was helpful, thanks!
> for anybody else commenting about updates - look at the table provided. if your phone can only update to a certain version, then that’s it!
mind, I’m sad that I cannot update my 4s..

Reply

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From Donna on December 09, 2024 :: 12:45 am


I need help

Reply

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From Heather on March 21, 2025 :: 5:36 am


I would like to update my SE second generation to 15.8.3, how can I do this?  I do not want the latest update at this time.

Reply

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From FROM PAUL AHOAGBA on August 21, 2025 :: 6:21 am


PLEASE MINE IS IPHONE 7 I WANT UPDATE TO THE NEW 16 FEATURE

Reply

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From Murray on December 26, 2025 :: 7:37 pm


It is not possible to update an Iphone7 to ios16

Reply

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