Restore iPhone with IPSW: Complete Guide to Restore, Recovery Mode, DFU, and Troubleshooting

What is an IPSW file?

An IPSW file is the official firmware file for Apple devices such as iPhone, iPad, and certain other Apple products. It contains the operating system and is used to update iOS or iPadOS or to fully restore a device.

In short:
If you want to restore your iPhone with IPSW, you manually install the correct iPhone firmware file through Finder, iTunes, or the Apple Devices app instead of relying only on the automatic update.

What is an IPSW file used for?

An IPSW file is useful if:

• an iPhone update failed

• the device is stuck in Recovery Mode

• you want to perform a clean restore

• you want to check whether an iOS downgrade is still possible

• Finder or iTunes recognizes the device, but the standard restore fails

When it works

An IPSW restore typically works when:

• the firmware file matches the exact model

• the file is still signed by Apple

• the iPhone is recognized by the computer

• the USB connection, software, and internet connection are stable

When it does not work

An IPSW installation does not work reliably if:

• you select the wrong firmware

• the file is unsigned

• the device has hardware problems

• Finder, iTunes, or the Apple Devices app cannot communicate with the device properly

Important: An IPSW file is not just “any iOS download.” It must match the exact model, build, and signing status.

Signed vs. unsigned IPSW files explained

A signed IPSW is a firmware file that Apple is still actively allowing to be installed. An unsigned IPSW is no longer accepted by Apple. This is the most common reason why a manually selected firmware file does not work.

What does signed IPSW mean?

When Apple signs a version, the server checks during the restore whether that iOS version is still authorized for your device. Only then can the firmware be installed normally.

Can I install an unsigned IPSW?

In the normal Apple workflow: no.
If Apple no longer signs a firmware version, the installation will typically fail with messages such as “This device isn’t eligible for the requested build” or similar restore errors.

Apple signing status: why does it matter?

The Apple signing status determines whether:

• an iOS downgrade is possible

• an older IPSW file can still be installed

• your manual restore has any chance of working at all

Comparison: signed vs. unsigned IPSW

When it works

• Apple is still signing the selected version

• the file matches your exact model

• you use the correct restore method

When it does not work

• Apple has stopped signing the version

• you try to install an old version after the signing window has closed

• you selected a different device model even though the device name sounds similar

Rule of thumb: If you ask, “Why doesn’t my IPSW file work?”, the answer is very often: wrong model or no signed IPSW.
Check the current signing status before starting a restore or downgrade.

Put iPhone into Recovery Mode

iPhone Recovery Mode is Apple’s official mode for when a device no longer starts normally, gets stuck on the “Connect to Computer” screen, or can only be repaired through a computer after a failed update.

When you should use Recovery Mode

Use Recovery Mode if:

• the Apple logo remains on screen for minutes without progress

• your iPhone is stuck on the “Connect to Computer” screen

• Finder or the Apple Devices app says that the device must be restored

• a normal update has failed

Step by step: Put iPhone into Recovery Mode

For iPhone 8 or later

• Briefly press the Volume Up button.

• Briefly press the Volume Down button.

• Press and hold the Side button.

• Do not release it until the “Connect to Computer” screen appears.

For iPhone 7 / 7 Plus

• Press and hold the Side button and Volume Down button at the same time.

• Keep holding both buttons until “Connect to Computer” appears.

For iPhone 6s or earlier

• Press and hold the Home button and the Top button/Side button at the same time.

• Keep holding both buttons until “Connect to Computer” appears.

What happens next

Once the iPhone is in Recovery Mode:

• open Finder on Mac

• or the Apple Devices app on Windows

• or iTunes if you use an older system

• then choose Update or Restore

When it works

• the device still responds to button combinations

• the computer recognizes the iPhone

• you are using the correct cable and a stable connection

When it does not work

• buttons are defective

• the device no longer shows any reaction

• USB/mainboard/connection problems prevent communication

Warning: If you choose Restore instead of Update, all data will be erased. When in doubt, start with Update if you only need to reinstall the system.
Open the recovery guide for your model before performing the button sequence.

Internal linking tip: Link to model-specific recovery guides and Apple Devices app instructions.

DFU Mode vs. Recovery Mode

iPhone DFU Mode is deeper than Recovery Mode. It usually only becomes relevant when a normal restore does not work. For most users, Recovery Mode is the correct first step.

Short answer

Recovery Mode is the standard method for update or restore problems.
DFU Mode is a deeper recovery level for advanced failure cases when normal measures do not work.

Comparison: DFU Mode vs. Recovery Mode

Which is better: DFU Mode or Recovery Mode?

For most cases, Recovery Mode is better because:

• it is the officially intended method

• Finder/iTunes supports it directly

• it is less error-prone

• it is already enough for many iPhone restore errors

DFU Mode is useful if:

• the iPhone gets stuck in the normal recovery workflow

• a restore repeatedly fails

• you need advanced diagnostics or a deeper reinitialization

Reddit/forum question: “Recovery mode vs DFU mode?”

The practical answer is:

• Recovery Mode = try this first

• DFU Mode = only if Recovery fails or a deeper problem is suspected

When it works

• the computer recognizes the device

• you know the exact button combination

• the problem is software-related

When it does not work

• severe hardware errors are present

• USB communication is unstable

• the problem is not related to iOS at all, but to components or power delivery
  Open the DFU guide only if the restore does not work in normal Recovery Mode.

Restore iPhone with Finder or iTunes

You can restore an iPhone with Finder, iTunes restore, or the Apple Devices app. Which software you use depends on your device and your computer’s operating system.

Which app is the right one?

Finder vs. iTunes vs. Apple Devices app

Step by step: Restore iPhone with IPSW

• Check or create a backup if the device is still accessible.

• Disable “Find My” / “Find My iPhone” if possible.

• Download the correct IPSW file for your exact model.

• Check whether the firmware is still signed.

• Connect the iPhone to the computer with a USB cable.

• Open Finder, the Apple Devices app, or iTunes.

• Select the device.

• If necessary, put the iPhone into Recovery Mode.

• Depending on your goal:

• choose Update if you want to keep personal data if possible

• choose Restore if a clean reinstallation is required

• For manual IPSW selection:

• on Mac, usually hold Option

• on Windows, usually hold Shift
  then click the corresponding action and select the IPSW file

• Wait until the software is installed.

• After completion, set up the device again or restore it from backup.

Can I restore my iPhone without data loss?

Sometimes yes, but not guaranteed.
If Finder or the Apple Devices app offers the Update option and it completes successfully, data often remains intact. A true Restore, however, wipes the device.

How do I restore an iPhone with Finder?

• Connect the iPhone

• Open Finder

• Select the device

• Click Restore or Update

• For manual installation, select the appropriate iPhone firmware file

How do I restore an iPhone on Windows?

On Windows, you should preferably use the Apple Devices app. If it is unavailable or the environment is older, iTunes can be used.

When it works

• the correct firmware was selected

• the device is recognized

• the signing status is valid

• the USB connection and computer are stable

When it does not work

• Finder does not recognize the iPhone

• the selected IPSW is wrong or unsigned

• the iPhone disconnects during the restore

• network or security software blocks Apple servers

Data warning: A full restore wipes the device. If possible, back up your data beforehand.
Download the correct IPSW file for your device and check the signing status before restoring.

Fix Error 3194 when restoring

Error 3194 usually means that the computer cannot properly reach Apple’s update server or that the requested firmware is not authorized. The error is often related to the network, security software, the hosts file, or build/signing issues.

What does Error 3194 mean?

Typical causes:

• firewall or security software blocks Apple servers

• internet connection is unstable

• the hosts file contains problematic entries such as gs.apple.com

• you are trying to install firmware that is no longer allowed

• the computer or the app in use is outdated

Step by step: Fix Error 3194

• Check the internet connection
  Make sure the computer has a stable connection.

• Update Finder, iTunes, or the Apple Devices app
  Outdated software can cause restore issues.

• Test firewall / security software
  Security software can block the connection to Apple servers.

• Try a different router / network
  If possible, test with another internet connection.

• Check the hosts file
  An entry like gs.apple.com can redirect or block communication with Apple.

• Check signing status
  If the IPSW is no longer signed, the restore can also fail.

• Try another computer
  This helps rule out local system problems.

Reddit/forum question: “Finder says this device isn’t eligible”

If Finder says that the device is not eligible for the requested build, this usually points to one of two issues:

• the wrong firmware was selected

• the firmware is no longer signed

Comparison: Error 3194 vs. 4013 vs. 4014

When it works

• the network is stable

• security software is not blocking the connection

• Apple servers are reachable

• the IPSW is correct and signed

When it does not work

• you keep using the same blocked connection

• the firmware is unsigned

• a corporate or proxy environment interferes
  Check the signing status and choose the correct firmware before triggering Error 3194 again.

Fix Error 4013/4014 on iPhone

Error 4013 and Error 4014 often occur when the connection is interrupted during the restore or the computer cannot correctly guide the iPhone through the restore process. This often involves the USB cable, USB port, restart, computer updates, or an interrupted restore procedure.

What do Error 4013 and 4014 mean?

Typical triggers:

• unstable or defective USB cable

• problematic USB port

• computer software is not up to date

• the device disconnects during the restore process

• update or restore process is interrupted

Step by step: Fix Error 4013/4014

• Update your Mac or PC
  Use current system software.

• Force restart the device
  Perform a forced restart.

• Try another USB cable
  Ideally, use a high-quality, reliable cable.

• Use another USB port
  Connect directly to the computer, not through hubs.

• Try Update instead of Restore
  If offered, choose Update first to preserve data.

• Try another computer
  This helps rule out a local communication issue.

• If Update does not help: Restore
  After that, the device must be set up from backup.

“Error 4013 after update” — what now?

If Error 4013 appears immediately after a failed update:

• restart the device

• enter Recovery Mode again

• try Update first

• only then consider a full restore

“Restore failed unknown error”

This wording is often just a nonspecific surface message for a connection or communication issue. In practice, you should always check first:

• cable

• port

• computer

• software version

• Recovery Mode

• correct restore order

When it works

• the cause is software- or connection-related

• the device is recognized stably

• you switch cable/port/computer

When it does not work

• a deeper hardware problem is present

• the device keeps interrupting the connection

• restore fails the same way on multiple systems

Important: If 4013 or 4014 still appears unchanged after trying multiple cables, ports, and computers, it is often no longer just a firmware issue.
Open the error-code page for your model and start with Update instead of Restore.

Find the correct firmware for iPhone or iPad

Finding the correct IPSW is the most important step before any manual restore. Even a slightly wrong file will cause the device to reject the firmware.

Which IPSW file do I need?

You need the firmware that exactly matches your device:

• correct device model

• correct product generation

• correct iOS/iPadOS version

• ideally still signed

How to find the correct firmware

• Identify the exact model
  Not just “iPhone 14,” but the precise model family.

• Open the device page
  Use model-specific overview pages instead of general search lists.

• Compare the version number
  Make sure you have actually selected the desired target system.

• Check signing status
  Without a valid signature, installation usually does not work.

• Download the matching file
  Use only the firmware assigned exactly to your device.

Which firmware fits my iPhone?

The correct firmware is always the file that:

• matches your exact model

• is currently installable

• is not just “similar,” but exactly correct

Which IPSW file is safe?

A firmware file is safest when:

• it is explicitly listed for your exact device

• the signing status is transparent

• the source clearly indicates that it is official Apple firmware or points to official Apple servers

When it works

• the model was identified exactly

• build and version are correct

• the firmware is signed

When it does not work

• you choose a different model with a similar name

• you ignore the signing status

• you download a file without checking the target device first
  Find the correct firmware for your iPhone before opening Finder or iTunes.

Common causes of failed restores

Failed restores usually do not happen randomly. In most cases, one of a few standard issues is the cause.

The most common causes

• wrong IPSW file

• unsigned IPSW

• unstable USB cable or defective USB port

• outdated Finder, iTunes, or outdated Apple Devices app

• firewall, security software, or proxy blocks Apple servers

• the iPhone disconnects during the restore

• the device is already stuck in an unstable boot or recovery state

• the issue is hardware-related rather than software-related

When it works

A restore usually succeeds when:

• the firmware is correct and signed

• the computer is up to date

• cable, port, and internet connection are stable

• you start with Update and only use Restore afterward if needed

When it does not work

A restore usually fails repeatedly when:

• you keep using the same unsigned or incorrect IPSW

• the iPhone shows the same error on multiple computers

• Finder does not recognize the device at all

• a deeper defect is present

Key takeaway: Most restore problems are model, signing, network, or connection problems.

When an IPSW restore does not work

An IPSW restore is not a universal fix. There are clear cases where it does not work, or only works in a limited way.

Typical limits

• Apple no longer signs the version

• the file does not match the device exactly

• the iPhone is not reliably recognized by the computer

• USB/port/board issues interrupt communication

• the restore fails even on multiple updated computers

• the device has deeper hardware problems

“Can I downgrade after Apple stops signing?”

In the normal Apple workflow: no.
As soon as Apple stops signing a version, a regular downgrade through Finder, iTunes, or the Apple Devices app is generally no longer possible.

“Why doesn’t Finder recognize my iPhone?”

Possible causes:

• cable or port issue

• iPhone is not correctly in Recovery Mode

• trust/passcode prompt was not confirmed

• computer software is outdated

• the device is in a deeper fault state

When it works

• Apple accepts the firmware

• the device communicates stably

• the error is software-related

When it does not work

• hardware prevents communication

• the device remains outside the normal restore chain

• signing or compatibility does not match

What happens to your data during a restore?

A true Restore wipes the device. If you click “Restore” in the computer dialog, data and settings are removed and the software is reinstalled.

What you may lose

• locally stored data without backup

• settings

• unsynced content

• app data if no backup exists

What you should back up first

• iCloud backup

• local backup on Mac or PC

• photos, if still accessible

• important app data and codes

Difference between Update and Restore

Can I restore my iPhone without data loss?

Not with a full restore.
If the device still responds and the Update option works, data may remain intact. But once you perform Restore, you should expect data loss.

Warning: If the iPhone is stuck in Recovery Mode, the wish to “restore without data loss” is understandable, but technically not always possible. Test Update first.

Frequently Asked Questions (FAQ)

Can I restore my iPhone with IPSW?

Yes, if you use the correct firmware file for your exact model, the device is recognized by the computer, and the version is still signed by Apple. The restore is done through Finder, iTunes, or the Apple Devices app.

Which IPSW file do I need?

You need the file that matches your exact iPhone or iPad model. Even small model differences can cause the firmware to be rejected. Always check device type, version, and signing status.

What does signed IPSW mean?

A signed IPSW is a firmware version that Apple is still allowing to be installed. Only signed versions can usually be successfully restored or installed in the normal Apple workflow.

Can I install an unsigned IPSW?

In the normal restore process, usually not. Once Apple has stopped signing the version, the system will generally reject the installation and the restore will fail.

Does an IPSW restore delete all data?

Yes, a full restore wipes the device. If the Update option is available instead and works successfully, personal data may remain intact.

What does Error 3194 mean?

Error 3194 typically points to a network, hosts file, or signing issue. Often, the computer cannot correctly reach Apple’s server, or the requested firmware is not authorized.

Why does Error 4013 appear?

Error 4013 often appears when the connection drops during the restore. Typical causes include cable, USB port, computer, or communication problems between the device and the system.

Which is better: DFU Mode or Recovery Mode?

For most users, Recovery Mode is better because it is the official first step for restore problems. DFU Mode is more intended for advanced cases when Recovery is not enough.

Can I downgrade iOS?

Yes, but only as long as Apple is still signing the desired version and the firmware exactly matches the device. Once Apple stops signing it, a normal downgrade is usually no longer possible.

Why doesn’t Finder recognize my iPhone?

Common causes include a defective cable, a problematic USB port, outdated system software, an unconfirmed trust prompt, or a device that is not correctly in Recovery Mode.

Can I install IPSW without iTunes?

Yes. On Mac, you typically use Finder today; on Windows, preferably the Apple Devices app. iTunes is used more often in older environments.

Is IPSW.io safe?

A firmware platform is trustworthy if it clearly shows which file belongs to which model, makes the signing status transparent, and uses only official Apple firmware or direct Apple sources. Always check model, version, and status before downloading.

Conclusion

If you want to restore an iPhone with IPSW, four things matter most:
the correct firmware, the current signing status, the proper recovery method, and a stable connection through Finder, iTunes, or the Apple Devices app.