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I jailbroke my Kindle Scribe (5.17.2) using Winterbreak, but unlike in version 5.16.8, the font used for Korean hints in WordWise has changed to one with very poor readability. (I edited the WordWise database and replaced the hints with Korean text.) The Kindle Paperwhite does not have this issue with the latest firmware.
After learning about KindleTool, I unpacked the firmware for both 5.17.2 and 5.16.8 and found that they contain a code2000.ttf file, which appears to be responsible for rendering the Korean WordWise hints.
I am considering three possible solutions to replace this hard-to-read font with a more legible Korean font:
1. Replacing the code2000.ttf file with a modified version.
This could involve editing the Korean glyphs in code2000.ttf or renaming a Korean font to code2000.ttf as a replacement. It seems that USBNetwork was used in the past to access the Kindle’s Linux file system.
Can this method still be used on a Scribe running recent firmware? If so, which version of USBNetwork should I use?
2. Applying a font hack
I read that before custom font support was officially added, a font hack was used to replace system fonts.
Can this method still be applied to recent Kindle firmware? If possible, this would be the simplest solution.
3. Modifying and reinstalling the firmware
Would it be possible to use KindleTool to unpack the firmware, replace the code2000.ttf file, repack it, and install the modified firmware on my jailbroken Scribe? This seems to be the riskiest approach, but is it technically feasible?
I’d appreciate any insights or suggestions!
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