[trcm]

It's not happy to update with either the factory or production bin of the same version as the existing installed software.....

<12>[   10.875305] INFO:find_file:160 Found update_pw4_5.10.1.3_factory.bin
<12>[   10.875336] INFO:Skipping battery charge check
<12>[   10.875345] INFO:Found bundle /mnt-us/update_pw4_5.10.1.3_factory.bin
<12>[   10.875364] INFO:*** NORMAL MODE
<12>[   10.875622] INFO:get_bdev_sys_info: /sys/class/block/mmcblk1p8/size = 1048576
<12>[   10.875693] INFO:get_bdev_sys_info: /sys/class/block/mmcblk1p8/size = 1048576
<12>[   11.099730] *** CHECKING /mnt-us/update_pw4_5.10.1.3_factory.bin ***
<12>[   12.192683] INFO:do_unbundle: filename=/mnt-us/update_pw4_5.10.1.3_factory.bin, new_file=0x00011dc4
<6>[   12.209874] EXT3-fs (mmcblk1p8): using internal journal
<6>[   12.209889] EXT3-fs (mmcblk1p8): mounted filesystem with ordered data mode
<6>[   12.210571] kjournald starting.  Commit interval 5 seconds
<6>[   12.237394] EXT3-fs (mmcblk1p8): using internal journal
<6>[   12.237410] EXT3-fs (mmcblk1p8): mounted filesystem with ordered data mode
<6>[   12.239328] kjournald starting.  Commit interval 5 seconds
<12>[   12.277058] ERROR:OTA version is less then current device version
<12>[   12.277083] ERROR:do_unbundle: validate_version failed.
<12>[   12.284650] INFO:No uboot image found! skipping uboot installation.
<12>[   12.284678] INFO:No sbios image found! skipping sbios installation.
<12>[   12.284694] INFO:No fbios image found! skipping fbios installation.
<12>[   12.284712] ERROR:Could not unbundle /mnt-us/update_pw4_5.10.1.3_factory.bin,error_code=12
<5>[   31.244748] random: nonblocking pool is initialized
<12>[   37.436689] /mnt-us/update_pw4_5.10.1.3_factory.bin MD5SUM: 538d939c2cb4f05c7952d33d5348f010
<12>[   39.641458] INFO:removing /mnt-us/update_pw4_5.10.1.3_factory.bin
<6>[   40.030854] kernel:pmic:clamp_soc:25,vbat:3955000
<12>[   41.013299] INFO:UPDATE ERROR: 12
<12>[   41.266196] INFO:Rebooting ...

and with the production image the same

<12>[  206.363672] INFO:do_unbundle: filename=/mnt-us/update_kindle_all_new_paperwhite_v2_5.10.1.3.bin, new_file=0x00011dc4
<12>[  206.395487] ERROR:OTA version is less then current device version

Interesting that it checks for a uboot image, I wonder if it found one (an unlocked one perhaps) if it would have written it ....