iOS 8.1 (12B411)

IPSW Firmware Unsigned
Product
Device
Version
4
Download
Official IPSW Download

Download iOS 8.1

Download OTA Update

This firmware is provided as a direct link to Apple's official servers. No mirroring or modification is performed.

Firmware Information

Version

iOS 8.1

Build ID

12B411

Release Date

October 20, 2014

File Size

1.69 GB

File Name

MD5 Sum

addda3b4166960aa136f503475bb5c7a

SHA1 Sum

18d4e0950b52165f10588633510dfcebe11a86b0

About this Device

Identifier

iPhone5,1

See all firmwares

Need help?

Our community guide has everything you need to know about restoring firmwares.

Read Guide

How to Install?

Follow these critical steps to ensure a successful firmware installation.

1

Secure Your Data

Always start by creating a full backup of your device via iCloud or a computer to ensure your personal files are safe.

2

Establish Connection

Use a high-quality MFi-certified cable to connect your device to your Mac or PC.

3

Verify Security

Temporarily disable Find My in your iCloud settings to allow the restoration process to proceed.

4

Initiate Restore

Hold Option (Mac) or Shift (PC) while clicking Restore in Finder/iTunes, then select your downloaded IPSW.

5

Finalize Setup

Once the installation completes, follow the on-screen prompts to restore your data from your backup.