Does firmware update 5.9.6 survive jailbreak?

jscris · 06-06-2018, 01:37 PM

I'm not brave enough to try.

downeaster59 · 06-06-2018, 01:50 PM

Yes, on the KOA2. I was just brave (or fool) enough to try it! I saw the "bridge" indication as the new firmware was loading.

Edit: Just reinstalled mr package installer. Seems to work as before!

jscris · 06-06-2018, 02:11 PM

Quote:

Originally Posted by downeaster59

Yes, on the KOA2. I was just brave (or fool) enough to try it! I saw the "bridge" indication as the new firmware was loading.

Edit: Just reinstalled mr package installer. Seems to work as before!

Thank you! And of course I meant does the jailbreak survive.

knc1 · 06-06-2018, 02:17 PM

Quote:

Originally Posted by jscris

Thank you! And of course I meant does the jailbreak survive.

The answer was: Yes.

jscris · 06-06-2018, 02:53 PM

Quote:

Originally Posted by knc1

The answer was: Yes.

The subject line was wrong.

Updated to new firmware, reinstalled mrpi, python, KUAL, screensavers. KUAL ont menu shows all entries and recognizes KOA2. More than one font can be placed in the Fonts folder and the new firmware will show one Custom Font entry in the Aa menu, but allows you to choose which of the user-installed fonts is to be used. I only tried two, so don't know if there's a limit. Bolding of the user-installed font seems to work.

NiLuJe · 06-06-2018, 03:30 PM

Huh. Is hell freezing over or is that Amazon implementing a 10 year-old user request?

The potentially crashiest of them all, to boot.

coplate · 06-06-2018, 04:13 PM

Quote:

Originally Posted by NiLuJe

Huh. Is hell freezing over or is that Amazon implementing a 10 year-old user request?

The potentially crashiest of them all, to boot.

After the zipSlip vulnerability report, I was hoping they would allow us to upload fonds in .zip format, and we can use that to jailbreak, but no, it says there right in plain text

Quote:

1. If the font is packaged into a compressed file (such as a ZIP file), uncompress the files using your favorite file extracting program

BOOO!

7hir7een · 06-06-2018, 07:58 PM

While fixing up my margins in the jars, I found this little gem I'm 99% sure I haven't noticed before...

Future plans?

coplate · 06-06-2018, 08:42 PM

Quote:

Originally Posted by 7hir7een

While fixing up my margins in the jars, I found this little gem I'm 99% sure I haven't noticed before...

Future plans?

No, it was available all the way back in 5.7.4 and newer, I looked at the code and it appears to just be the code that reads from "Todo" servers and fills out the screensaver folder.

So, maybe they meant to, but its been there for Years.

7hir7een · 06-06-2018, 09:00 PM

Ah, guess I was just looking for new things what with the font update. Thanks for confirming!

NiLuJe · 06-06-2018, 09:35 PM

Yeah, that vaguely rings a bell, so it may have been here for quite a while (since SO, I'd wager).

knc1 · 06-06-2018, 09:42 PM

Quote:

Originally Posted by 7hir7een

While fixing up my margins in the jars, I found this little gem I'm 99% sure I haven't noticed before...

Future plans?

That loads Amazon's custom, special offer, screen savers.

NullNix · 06-08-2018, 07:03 PM

Quote:

Originally Posted by NiLuJe

Huh. Is hell freezing over or is that Amazon implementing a 10 year-old user request?

The potentially crashiest of them all, to boot.

It looks like they're validating the font at least to some degree and renaming it out of the way if it looks like it might crash something. (Though I do wonder if one jailbreak route might now be to look at the FreeType git commit logs and write a font that exploits one of the extremely numerous overflows and fuzz-detected problems found in FreeType, then load it using this new mechanism before they release a new firmware using a FreeType new enough to contain that commit. Is whatever they're using to detect problematic fonts *that* good, I wonder?

)

knc1 · 06-08-2018, 07:23 PM

Didn't we have a font file based jail break in the past?
It would have been prior to 2012 when I joined, but still being mentioned from time to time back then.

Solus · 06-13-2018, 11:17 AM

Did you get the screensavers to work on KOA2 somehow? If so, which BIN file did you use?

Or is this on another device?

Quote:

Originally Posted by jscris

...Updated to new firmware, reinstalled mrpi, python, KUAL, screensavers. KUAL ont menu shows all entries and recognizes KOA2. ...

06-06-2018, 01:37 PM	#1
jscris Addict Posts: 393 Karma: 123456 Join Date: Feb 2009 Location: Central US Device: k1 - KAO2, ipads, h2o, KA1, inkBOOK, T80s, Mars, Nova Pro	Does firmware update 5.9.6 survive jailbreak? I'm not brave enough to try.

06-06-2018, 01:50 PM	#2
downeaster59 Wizard Posts: 1,215 Karma: 2957301 Join Date: Apr 2014 Location: Rochester, NY Device: iPad mini 6, Onyx Leaf 2, Onyx Tab Mini C, Nook Glowlight 4 Plus	Yes, on the KOA2. I was just brave (or fool) enough to try it! I saw the "bridge" indication as the new firmware was loading. Edit: Just reinstalled mr package installer. Seems to work as before! Last edited by downeaster59; 06-06-2018 at 01:54 PM.

06-06-2018, 03:30 PM	#6
NiLuJe BLAM! Posts: 13,477 Karma: 26012492 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	Huh. Is hell freezing over or is that Amazon implementing a 10 year-old user request? The potentially crashiest of them all, to boot. Last edited by NiLuJe; 06-06-2018 at 03:49 PM.

06-06-2018, 07:58 PM	#8
7hir7een Reader of Books Posts: 204 Karma: 178096 Join Date: Oct 2012 Device: Kobo Libra 2, Kindle Basic (11th gen)	While fixing up my margins in the jars, I found this little gem I'm 99% sure I haven't noticed before... Future plans? Attached Thumbnails Last edited by 7hir7een; 06-06-2018 at 09:27 PM.

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06-06-2018, 09:00 PM	#10
7hir7een Reader of Books Posts: 204 Karma: 178096 Join Date: Oct 2012 Device: Kobo Libra 2, Kindle Basic (11th gen)	Ah, guess I was just looking for new things what with the font update. Thanks for confirming!

06-06-2018, 09:35 PM	#11
NiLuJe BLAM! Posts: 13,477 Karma: 26012492 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	Yeah, that vaguely rings a bell, so it may have been here for quite a while (since SO, I'd wager).

06-08-2018, 07:23 PM	#14
knc1 Going Viral Posts: 17,212 Karma: 18210809 Join Date: Feb 2012 Location: Central Texas Device: No K1, PW2, KV, KOA	Didn't we have a font file based jail break in the past? It would have been prior to 2012 when I joined, but still being mentioned from time to time back then.