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Topic: iPod Nano 7th Generation Possible Hacks

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Old 03-01-2017, 07:58 PM
#136
 
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1.0.3 rsrc image extraction

Hi there,

I discovered recently I had a Nano 7, and was wondering what I could do with it. I discovered this thread, and began playing with it. I think that I might have been able to create a tool to compress the fw's back into the Firmware.MSE (I've managed to compress regular fw's, but not modified versions since I don't know how do modify them reliably). Availble on GitHub under ninjaprawn/compress7g

I was wondering if anyone has managed to extract an rsrc image from the file for 1.0.3, and managed to mount it on Mac (Sierra)?
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Old 03-03-2017, 04:29 PM
#137
 
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Nevermind. For those interested, the disk image is formatted with a MBR, and Sierra doesn't seem to like it, so I booted into Windows to view and modify it.

It seems that modifying it wasn't as easy as I thought. I tried sending through my modified rsrc file, but the iPod went into "Bad Software" mode after booting for a little. I examined the rsrc file header, and I believe there may be a hash, possibly SHA1, that is used to check the file. The problem is that I'm not sure which region of the overall file is being hashed. I've got some brute-forcing going, but I'm not sure if I will get far. (potential hash is at offset 4160)
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Old 03-04-2017, 09:45 PM
#138
 
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Never mind the theory on the hash. I removed some content from the header of the rsrc file, and it somehow worked! I only did a minor change of changing the long title of the "Basic" workout from "Basic Workout" to "The Basic".

I'll see what I can do in terms of theming. Luckily there are a ton of posts about the structure of the SilverDB file. I'll first write a viewer for the image files, since they aren't the normal png/jpg formats. Once I do that, I'll have a better understanding of the image structure, and see what I can do to modify the images.
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Old 03-28-2017, 12:58 AM
#139
 
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Quote:
Originally Posted by ninjaprawn View Post
Never mind the theory on the hash. I removed some content from the header of the rsrc file, and it somehow worked! I only did a minor change of changing the long title of the "Basic" workout from "Basic Workout" to "The Basic".

I'll see what I can do in terms of theming. Luckily there are a ton of posts about the structure of the SilverDB file. I'll first write a viewer for the image files, since they aren't the normal png/jpg formats. Once I do that, I'll have a better understanding of the image structure, and see what I can do to modify the images.
Nice! Have you tried replacing any of the music/sounds? And can I have a link to the tool you are using to send over modified rsrc files?
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Old 03-28-2017, 01:50 AM
#140
 
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I had a look into SilverImagesDB.LE.bin, and found an interesting unused icon:
Click the image to open in full size.
Any ideas as to what it is for?
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Old 03-30-2017, 02:16 PM
#141
 
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Guys - you are doing AMAZING work. Well done!
I was wondering, would it eventually be possible to add apps such as Spotify and Duolingo? (I use these lot for running). Also - what games can run on 64 Mb RAM because, sadly, that is all the iPod has. Would it be possible to put notes and contacts on it - I have an old iPod classic 5th generation and maybe we could copy them. I am (hopefully) going to get an iPod nano in early June and will spend as much time as i can learning how to 'hack' it.
Thank you, and keep up the good work.
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Old 03-30-2017, 02:42 PM
#142
 
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Thumbs up

Wow it's been awhile since I've been to this site!

With some minor changes I have compress7g working on my 6g nano watch, and have been able to successfully restore custom firmware

All we need now is a handy way to modify SilverImagesDB



peace.love.beauty.
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Old 04-10-2017, 10:16 AM
#143
 
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Quote:
Originally Posted by IpodAirplane View Post
Guys - you are doing AMAZING work. Well done!
I was wondering, would it eventually be possible to add apps such as Spotify and Duolingo? (I use these lot for running). Also - what games can run on 64 Mb RAM because, sadly, that is all the iPod has. Would it be possible to put notes and contacts on it - I have an old iPod classic 5th generation and maybe we could copy them. I am (hopefully) going to get an iPod nano in early June and will spend as much time as i can learning how to 'hack' it.
Thank you, and keep up the good work.
Hi! Unfortunately, it wouldn't be possible to run apps like Spotify and Duolingo, as the iPod Nano 6G/7G don't have WiFi hardware. It might be possible over bluetooth, but then you would have to carry a phone with you, and what would be the point then? As far as games go, I could see emulators being a thing, as well as some simple games (Angry Birds perhaps?)
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Old 04-10-2017, 10:18 AM
#144
 
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Quote:
Originally Posted by sticktron View Post
Wow it's been awhile since I've been to this site!

With some minor changes I have compress7g working on my 6g nano watch, and have been able to successfully restore custom firmware

All we need now is a handy way to modify SilverImagesDB
How have you sent over custom firmware to the 6g? I'd be able to do a lot more in research if I could send over modified resource partitions and firmware, but I don't have the software to do it! Can someone hook me up? XD
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Old 04-15-2017, 06:17 AM
#145
 
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As spotifys files are encrypted, would it be possible to actually sync the spotify app? Also - this is probably imbossible but could you take the camera from a 5g nano and solder it to a 7gs motherboard? You would have to cut a hole in the case, but I can get a 5g
Thank you
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