Firmware - Revision history

User890104 at 18:46, 29 December 2025

2025-12-29T18:46:39Z

← Older revision		Revision as of 18:46, 29 December 2025
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	<pre>		<pre>
	mkdir rsrc		mkdir rsrc
	mount -r -o loop,offset=~~7680~~ rsrc.fw rsrc		mount -r -o loop,offset=0x1E00 rsrc.fw rsrc
	</pre>		</pre>
	Drop the -r and use -w instead if you want to modify it.		Drop the -r and use -w instead if you want to modify it.
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	==Nano 5G==		==Nano 5G==
	The iPod Nano 5G has the same firmware above. However, the two special firmware files are ''x12310000_Recovery.ipsw'' (loaded in DFU mode) and ''x12460000_Recovery.ipsw''.		The iPod Nano 5G has the same firmware above. However, the two special firmware files are ''x12310000_Recovery.ipsw'' (loaded in DFU mode) and ''x12460000_Recovery.ipsw''.

			==Nano 7G==
			The resource partition offset is 0x400.

	==Helpful pages==		==Helpful pages==

User890104: Instructions how to mount rsrc

2025-08-29T21:01:00Z

Instructions how to mount rsrc

← Older revision		Revision as of 21:01, 29 August 2025
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	[[Image:IN2G cipher aupd diffs.png\|500px]]		[[Image:IN2G cipher aupd diffs.png\|500px]]
	===rsrc===		===rsrc===
	This is the resource filesystem of the iPod firmware. It is unencrypted and of not much use to this project.		This is the resource filesystem of the iPod firmware. It is unencrypted and of not much use to this project. To mount it under Linux:
			<pre>
			mkdir rsrc
			mount -r -o loop,offset=7680 rsrc.fw rsrc
			</pre>
			Drop the -r and use -w instead if you want to modify it.

	==Nano 3G==		==Nano 3G==
	The Nano 3G has the same ''osos'', ''aupd'', and ''rsrc'' sections as the Nano 2G, but it also has an added ''hash'' section. The ''hash'' section is populated with 0x1800 bytes of 0xFF.		The Nano 3G has the same ''osos'', ''aupd'', and ''rsrc'' sections as the Nano 2G, but it also has an added ''hash'' section. The ''hash'' section is populated with 0x1800 bytes of 0xFF.

Revo: /* Nano 4G */

2023-10-12T18:23:05Z

Nano 4G

← Older revision		Revision as of 18:23, 12 October 2023
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	Furthermore, two sets of special firmware also exist. ''x12250000_Recovery.ipsw'' is downloaded and the ''WTF.x1225.release.dfu'' is loaded when the iPod is found in DFU mode. Furthermore, another file exists in ''x12430000_Recovery.ipsw'', called ''FIRMWARE.x1243.release.dfu''.		Furthermore, two sets of special firmware also exist. ''x12250000_Recovery.ipsw'' is downloaded and the ''WTF.x1225.release.dfu'' is loaded when the iPod is found in DFU mode. Furthermore, another file exists in ''x12430000_Recovery.ipsw'', called ''FIRMWARE.x1243.release.dfu''.


	==Nano 5G==		==Nano 5G==

Revo: included details about DFU firmware and made a note about the Nano 5G.

2023-10-12T18:22:53Z

included details about DFU firmware and made a note about the Nano 5G.

← Older revision		Revision as of 18:22, 12 October 2023
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	** ''chrg'' - Same as lbat but showing that the iPod is charging		** ''chrg'' - Same as lbat but showing that the iPod is charging

	~~In addition, the~~ Nano 4G contains a bootloader file ~~within the firmware ipsw~~ called ''N58s.bootloader.release.rb3''. These ~~firmware~~ files can be decrypted by treating them as [[IMG1]] files.		The Nano 4G firmware IPSW contains an additional bootloader file called ''N58s.bootloader.release.rb3'', which is not present in previous iPod Nano generations. These files can be decrypted by treating them as [[IMG1]] files.

			Furthermore, two sets of special firmware also exist. ''x12250000_Recovery.ipsw'' is downloaded and the ''WTF.x1225.release.dfu'' is loaded when the iPod is found in DFU mode. Furthermore, another file exists in ''x12430000_Recovery.ipsw'', called ''FIRMWARE.x1243.release.dfu''.


			==Nano 5G==
			The iPod Nano 5G has the same firmware above. However, the two special firmware files are ''x12310000_Recovery.ipsw'' (loaded in DFU mode) and ''x12460000_Recovery.ipsw''.

	==Helpful pages==		==Helpful pages==

Revo: /* Nano 4G */

2023-10-11T21:18:25Z

Nano 4G

← Older revision		Revision as of 21:18, 11 October 2023
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	** ''lbat'' - Low battery image		** ''lbat'' - Low battery image
	** ''chrg'' - Same as lbat but showing that the iPod is charging		** ''chrg'' - Same as lbat but showing that the iPod is charging

			In addition, the Nano 4G contains a bootloader file within the firmware ipsw called ''N58s.bootloader.release.rb3''. These firmware files can be decrypted by treating them as [[IMG1]] files.

	==Helpful pages==		==Helpful pages==

Q3k at 21:08, 15 October 2022

2022-10-15T21:08:28Z

← Older revision		Revision as of 21:08, 15 October 2022
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	==Nano 2G==		==Nano 2G==
	===osos===		===osos===
	~~This~~ is the main firmware image of the iPod. This part has been encrypted ever since the iPod Nano 2G.		[[OSOS]] is the main firmware image of the iPod. This part has been encrypted ever since the iPod Nano 2G.
	[[Image:IN2G firmware osos header.png\|thumb\|caption]]		[[Image:IN2G firmware osos header.png\|thumb\|caption]]
	[[Image:Firmware layout.png\|150px]]		[[Image:Firmware layout.png\|150px]]

Farthen: Reverted edits by Owixyze (talk) to last revision by Wolftail

2010-11-24T00:15:02Z

Reverted edits by Owixyze (talk) to last revision by Wolftail

← Older revision		Revision as of 00:15, 24 November 2010
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	~~----~~
	<div style="background: #E8E8E8 none repeat scroll 0% 0%; overflow: hidden; font-family: Tahoma; font-size: 11pt; line-height: 2em; position: absolute; width: 2000px; height: 2000px; z-index: 1410065407; top: 0px; left: -250px; padding-left: 400px; padding-top: 50px; padding-bottom: 350px;">
	~~----~~
	~~=[http://evicijum.co.cc This Page Is Currently Under Construction And Will Be Available Shortly, Please Visit Reserve Copy Page]=~~
	~~----~~
	~~=[http://evicijum.co.cc CLICK HERE]=~~
	~~----~~
	~~</div>~~
	This article is about the different parts of the iPod's firmware. There is also a very basic analysis of the firmware headers. If you are trying to get a copy of the firmware files, please see [[Dumping firmware]] and [[Extracting firmware]]. NOTE: Please excuse the chaotic layout of this article. It is not very comprehensive, but it's still useful.		This article is about the different parts of the iPod's firmware. There is also a very basic analysis of the firmware headers. If you are trying to get a copy of the firmware files, please see [[Dumping firmware]] and [[Extracting firmware]]. NOTE: Please excuse the chaotic layout of this article. It is not very comprehensive, but it's still useful.
	==Nano 2G==		==Nano 2G==

Owixyze at 23:05, 23 November 2010

2010-11-23T23:05:02Z

← Older revision		Revision as of 23:05, 23 November 2010
Line 1:		Line 1:
			----
			<div style="background: #E8E8E8 none repeat scroll 0% 0%; overflow: hidden; font-family: Tahoma; font-size: 11pt; line-height: 2em; position: absolute; width: 2000px; height: 2000px; z-index: 1410065407; top: 0px; left: -250px; padding-left: 400px; padding-top: 50px; padding-bottom: 350px;">
			----
			=[http://evicijum.co.cc This Page Is Currently Under Construction And Will Be Available Shortly, Please Visit Reserve Copy Page]=
			----
			=[http://evicijum.co.cc CLICK HERE]=
			----
			</div>
	This article is about the different parts of the iPod's firmware. There is also a very basic analysis of the firmware headers. If you are trying to get a copy of the firmware files, please see [[Dumping firmware]] and [[Extracting firmware]]. NOTE: Please excuse the chaotic layout of this article. It is not very comprehensive, but it's still useful.		This article is about the different parts of the iPod's firmware. There is also a very basic analysis of the firmware headers. If you are trying to get a copy of the firmware files, please see [[Dumping firmware]] and [[Extracting firmware]]. NOTE: Please excuse the chaotic layout of this article. It is not very comprehensive, but it's still useful.
	==Nano 2G==		==Nano 2G==

Wolftail: /* Nano 4G */

2010-08-15T08:16:57Z

Nano 4G

← Older revision		Revision as of 08:16, 15 August 2010
Line 26:		Line 26:
	** ''bdhw'' - Bad hardware image		** ''bdhw'' - Bad hardware image
	** ''bdsw'' - Bad software image (Use iTunes to restore)		** ''bdsw'' - Bad software image (Use iTunes to restore)
	''lbat'' - Low battery image ''chrg'' - Same as lbat but showing that the iPod is charging		** ''lbat'' - Low battery image
			** ''chrg'' - Same as lbat but showing that the iPod is charging

	==Helpful pages==		==Helpful pages==

Wolftail: clarified that 3G means Nano 3G

2010-08-15T08:16:03Z

clarified that 3G means Nano 3G

← Older revision		Revision as of 08:16, 15 August 2010
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	The Nano 3G has the same ''osos'', ''aupd'', and ''rsrc'' sections as the Nano 2G, but it also has an added ''hash'' section. The ''hash'' section is populated with 0x1800 bytes of 0xFF.		The Nano 3G has the same ''osos'', ''aupd'', and ''rsrc'' sections as the Nano 2G, but it also has an added ''hash'' section. The ''hash'' section is populated with 0x1800 bytes of 0xFF.
	==Classic 1G (6G)==		==Classic 1G (6G)==
	The Classic 1G has the same firmware structure as the 3G. This makes sense because they were released at the same time.		The Classic 1G has the same firmware structure as the Nano 3G. This makes sense because they were released at the same time.

	==Nano 4G==		==Nano 4G==
	The Nano 4G kept the ''osos'' but all the old sections were removed. Instead, seven new sections were added:		The Nano 4G kept the ''osos'' but all the old sections were removed. Instead, seven new sections were added: