# Forcing KV to run 5.14+ Info taken from the original thread: So, the PW3 and the KV is actually almost identical in terms of the underlying hardware, and with an identical partition layout, it is possible to cross-flash firmware from one device to another. Heck, [even the KT2 with 256MB of ram can run 5.14+](https://www.reddit.com/r/kindle/comments/qvgerd/teaching_old_dogs_new_tricks_newest_update/) though it is not really recommended as the React UI of 5.13.7+ does take up more resources and memory exhaustion becomes a problem. The only real exception to this Wario hardware family (PW2, PW3, KT2, KV) is the PW2 as it has a slightly smaller RootFS than the other 3 ([as I've found out the hard way](https://www.mobileread.com/forums/showthread.php?t=348801)), while it is still possible to run 5.14.1 on the PW2, some modifications are needed to trim down the RootFS' size. ## By following this guide, I bear no responsibility if you break your Kindle, caused a house fire, or accidentally open up a wormhole to the 818th dimension. You have been warned! ## Prerequisites: * A Kindle Voyage (duh) with a 1.8v USB to serial adapter soldered to it. * A PC running Linux, or a Mac. * NiLuJe's [KindleTool](https://github.com/NiLuJe/KindleTool). (Grab this from your distro's package manager, or `brew` in macOS.) * PW3 update file, \ Replace `5.XX.X` with the version you desire, such as `5.14.2`. ## Process: 1. Download the copy of a PW3 update file as mentioned above. Then extract it using KindleTool: ``` kindletool extract ~/Downloads/update_kindle_all_new_paperwhite_5.XX.X.bin /tmp/pw3 ``` 2. Once that's done, decompress `rootfs.img.gz` to obtain the raw `rootfs.img`: ``` gzip -d /tmp/pw3/rootfs.img.gz ``` 3. Reboot your Kindle with active serial connection, then interrupt the boot process by rapidly hitting Enter until you get to the `uboot` prompt. Then boot into `DIAGS` mode: ``` uboot > bootm 0xE41000 ``` 4. Once you're in `DIAGS`, export the userspace partition: ``` usb export ``` 5. Transfer `rootfs.img` to the device. 6. Eject the Kindle from the host PC and exit USB Export mode. ``` x ICE-WARIO-WFO-512 - USB EXPORT - 71 ~~~~ 1.16.614.264341 ~~~~ pcbId:04XXXXXXXXXXXX USB device exported Once you are done Eject the USB device from the PC then Battery capacity 71 (Q)-to continue (X)-Exit x ``` 7. Exit diags mode, then drop to a shell. ``` exit login ``` 8. Flash `rootfs.img` using ~~Disk Destroyer~~ DD, this will take a while to complete: ``` [root@[192_168_15_244] root]# dd if=/mnt/us/rootfs.img of=/dev/mmcblk0p1 bs=4096 112500+0 records in 112500+0 records out 460800000 bytes (439.5MB) copied, 95.986967 seconds, 4.6MB/s ``` 9. Reboot the device. It will now boot into the firmware you installed. ``` reboot ``` ## Once you've confirmed that everything works as it should, have fun with your Paperwhite 3 Voyage Edition!