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Old 07-30-2022, 01:37 PM   #556
indiecognition
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Location: DC
Device: Kindle Voyage (WiFi)
This is the USB serial port adapter that worked perfectly for me (used sewing pins to connect to the Kindle board since I'm not good at soldering).

Where I am, it's available with one-day shipping. https://www.amazon.com/gp/product/B07TXVRQ7V
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Old 09-06-2022, 01:29 AM   #557
DarkHelmet
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PW5SE serial port

I got a new Kindle PaperWhite 5 Signature Edition (2021) (PW5SE) that came with 5.14.3.0.1 on it. I opened it up (video if you want to see) and can't seem to find a serial port on it.

Has anyone worked with one of these? It looks like there's some kinda JTAG/eMMC connector on the back of the board in the FCC pictures, but they are too low res to make sense of it, and I didn't want to try ungluing that board. Same with removing the MMC chip to read it.

I have some more pictures of it up on my wiki.

I'm thinking this may use the USB C as a debug port, but thought to ask here if anyone has worked on this before. I'd say perhaps an OTG adapter and a FTDI port might work, but as this has to be in the bootloader, it needs to be real async port. Has anyone worked on this before?
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Old 09-06-2022, 09:27 AM   #558
katadelos
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Device: K5, KT, KT2, KT3, KT4, KV, PW2, PW3, PW4, PW5
Quote:
Originally Posted by DarkHelmet View Post
I got a new Kindle PaperWhite 5 Signature Edition (2021) (PW5SE) that came with 5.14.3.0.1 on it. I opened it up (video if you want to see) and can't seem to find a serial port on it.

Has anyone worked with one of these? It looks like there's some kinda JTAG/eMMC connector on the back of the board in the FCC pictures, but they are too low res to make sense of it, and I didn't want to try ungluing that board. Same with removing the MMC chip to read it.

I have some more pictures of it up on my wiki.

I'm thinking this may use the USB C as a debug port, but thought to ask here if anyone has worked on this before. I'd say perhaps an OTG adapter and a FTDI port might work, but as this has to be in the bootloader, it needs to be real async port. Has anyone worked on this before?
You're not the first to notice this - the board submitted for FCC certification appears to have a serial port but every PW5 that I've seen in the wild lacks it. It's possible that the serial port is still accessible using the 2 tiny test points next to the digitiser connector on the bottom right or via one of the test points that are likely to be on the back of the board.

However, you're unlikely to be able to unlock your PW5 even if you find it, the last few generations of devices have been pretty comprehensively locked down.
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Old 09-06-2022, 11:19 AM   #559
eraser1320
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I'm in the US, can I switch my device location back to the US after everything is jailbroken? Does the location effect anything? Thx.
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Old 09-06-2022, 02:42 PM   #560
DarkHelmet
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Quote:
Originally Posted by katadelos View Post
You're not the first to notice this - the board submitted for FCC certification appears to have a serial port but every PW5 that I've seen in the wild lacks it. It's possible that the serial port is still accessible using the 2 tiny test points next to the digitiser connector on the bottom right or via one of the test points that are likely to be on the back of the board.
What pads do you think this is? I really don't think it's the two I was probing as that had 32.768 khz on it when the device was active. It's also a small connector. Can you circle it on the picture?

There has to be some way to program a blank device at the factory after the parts are installed. Typically this is done via a JTAG/serial interface. The old hc11 uP's would take a couple lines low, and go into a special mode to load a 1k program via async serial. This would then allow you to flash the chips and such.

Looking at the pictures of the under side of the board it really looks like a eMMC connector footprint. I'm betting that's how they program the flash on the production line. Assuming it's not encrypted this might be access.

Quote:
Originally Posted by katadelos View Post
However, you're unlikely to be able to unlock your PW5 even if you find it, the last few generations of devices have been pretty comprehensively locked down.
Question, if we get direct access to the flash, can we root it?

I'm not sure what uP these run, but prior models were a freescale ARM and they have a built in mode to load a helper program. So either we do this, and do a bit of arm ASM or just get access to the flash, either eMMC connector or pull the chip off the board.

Thoughts?
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Old 11-16-2022, 02:34 AM   #561
Puhtaytou
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Cant get into diagnostics mode

Done everything exactly but either I have a different uboot because I did not get the prompt.
Kindle pw3 fw 5.14.3

Output form putty:

BOOTING DEFAULT.
IP-Config: no devices to configure
kinit: Mounted root (ext3 filesystem) readonly.
info sytem:mounted_proc::
info system:mounted_sys::
info system:sy00::
info system:mounted_dev::
info milestone:6.89:49.1:49.1
info milestone:6.93:49.2:49.2
info milestone:6.96:49.3:49.3
info milestone:7.03:49.4:49.4
info milestone:7.06:49.5:49.5
info sytem:mounted_tmpfs::
info milestone:7.15:sy50:sy50
info system:start:time=7180:time=7180
info hardware:no_wan:: WiFi only device. No WAN found
info system:configlatform=wario,board=muscat,rev=03,p roto=Y,wifi=Y,wan=Nlatform=wario,board=muscat,re v=03,proto=Y,wifi=Y,wan=N
info milestone:7.34:sy51:sy51
lipc-send-event[840]: E lipc:con::Connection error(Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory)
lipc-send-event[840]: C def:dbusi::Failed to init dbus
lipc-send-event[840]: E defpen::Failed to open LIPC
lipc-send-event[840]: E def:fail:source=com.lab126.hal, event=usbPlugIn:Sending event failed
lipc-send-event[842]: E lipc:con::Connection error(Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory)
lipc-send-event[842]: C def:dbusi::Failed to init dbus
lipc-send-event[842]: E defpen::Failed to open LIPC
lipc-send-event[842]: E def:fail:source=com.lab126.hal, event=usbPlugIn:Sending event failed
info milestone:8.18:sy99:sy99
info system:done:time=8210:time=8210
crond[859]: crond (busybox 1.28.3) started, log level 8

init.exe: sshd main▒process (858init.exe: sshd main process ended, respawning
init.exe: recevent pre-start process (862) terminated with status 1



Welcome to Kindle!

kindle login: info milestone:8.52:sc01:sc01
info system_fs_loopbacks:mountingfs:Mounting compressed directories filesystem images:Mounting compressed directories filesystem images
info milestone:8.55:sc02:sc02
info milestone:8.59:/usr/share/X11/xkb:/usr/share/X11/xkb
info system_fs_loopbacks:mounted:Image /usr/share/X11/xkb.sqsh mounted:Image /usr/share/X11/xkb.sqsh mounted
info milestone:8.62:3:3
info milestone:8.63:sc05:sc05
info milestone:8.65:/usr/java/lib/fonts:/usr/java/lib/fonts
info system_fs_loopbacks:mounted:Image /usr/java/lib/fonts.sqsh mounted:Image /usr/java/lib/fonts.sqsh mounted
info milestone:8.68:4:4
info milestone:8.69:sc05:sc05
info milestone:8.71:/etc/kdb.src:/etc/kdb.src
info system_fs_loopbacks:mounted:Image /etc/kdb.src.sqsh mounted:Image /etc/kdb.src.sqsh mounted
info milestone:8.74:5:5
info milestone:8.75:sc05:sc05
info milestone:8.76:/usr/lib/locale:/usr/lib/locale
info system_fs_loopbacks:mounted:Image /usr/lib/locale.sqsh mounted:Image /usr/lib/locale.sqsh mounted
info milestone:8.80:6:6
info milestone:8.81:sc05:sc05
info milestone:8.82:/usr/share/keyboard:/usr/share/keyboard
info system_fs_loopbacks:mounted:Image /usr/share/keyboard.sqsh mounted:Image /usr/share/keyboard.sqsh mounted
info milestone:8.94:7:7
info milestone:8.95:sc05:sc05
info milestone:8.96:/opt/var/local:/opt/var/local
info system_fs_loopbacks:mounted:Image /opt/var/local.sqsh mounted:Image /opt/var/local.sqsh mounted
info milestone:9.00:8:8
info milestone:9.01:sc05:sc05
info milestone:9.02:sc07:sc07
info system:emiting_event:mounted_fs_loopbacks:mounted_ fs_loopbacks
debug sytem:event_emitted:mounted_fs_loopbacks:mounted_f s_loopbacks
info milestone:9.06:fs75:fs75
info system:emiting_event:loaded_modules_dependencies:l oaded_modules_dependencies
debug sytem:event_emitted:loaded_modules_dependencies:lo aded_modules_dependencies
info modules:modprobe:loading module fsl_otg_arc:loading module fsl_otg_arc
info system:emiting_event:loaded_fsl_otg_arc:loaded_fsl _otg_arc
debug sytem:event_emitted:loaded_fsl_otg_arc:loaded_fsl_ otg_arc
info modules:modprobe:loading module ehci_hcd:loading module ehci_hcd
info system:emiting_event:loaded_ehci_hcd:loaded_ehci_h cd
debug sytem:event_emitted:loaded_ehci_hcd:loaded_ehci_hc d
info modules:modprobe:loading module fuse:loading module fuse
info system:emiting_event:loaded_fuse:loaded_fuse
debug sytem:event_emitted:loaded_fuse:loaded_fuse
info hardware:no_wan:: WiFi only device. No WAN found
info system:emiting_event:loaded_ppp_async:loaded_ppp_a sync
info milestone:9.36:fs00:fs00
debug sytem:event_emitted:loaded_ppp_async:loaded_ppp_as ync
info system:emiting_event:loaded_fakekey:loaded_fakekey
debug sytem:event_emitted:loaded_fakekey:loaded_fakekey
info filesystems_keys:not applicable for this device type::
info filesystems_var_local:File system errors checked. Return code 0:Warning: skipping journal recovery because doing a read-only filesystem check.
LocalVars: clean, 1311/16384 files, 22440/65536 blocks:Warning: skipping journal recovery because doing a read-only filesystem check.
LocalVars: clean, 1311/16384 files, 22440/65536 blocks
info filesystems_var_local:No file system errors::
info filesystems_var_localB PARAMS:FreePageSize:0 bytes. AvailableSpaceInVarLocal:39649 KB.:FreePageSize:0 bytes. AvailableSpaceInVarLocal:39649 KB.
info milestone:10.38:fs23:fs23
info system:emiting_event:mounted_varLocal:mounted_varL ocal
debug sytem:event_emitted:mounted_varLocal:mounted_varLo cal
info milestone:10.48:vi00:vi00
info prereg:PRAGMA_QUICK_CHECK_PASSED:: sts=0
info milestone:10.80:fs25:fs25
info display:update:Checking '/opt/eink/images/R101_ED060KD1C2' for overrides:Checking '/opt/eink/images/R101_ED060KD1C2' for overrides
info userstore:run:time=11190,action=start:time=11190,a ction=start
info userstore:start:found_bootup_flag:found_bootup_fla g Found BOOTUP flag file
err mntus:loopback_not_mounted:: loopback device is not set-up
info system:emiting_event:loaded_touch:loaded_touch
debug sytem:event_emitted:loaded_touch:loaded_touch
info system:emiting_event:mounted_userstore:mounted_use rstore
debug sytem:event_emitted:mounted_userstore:mounted_user store
info milestone:12.72:fs50:fs50
info milestone:12.80:fs90:fs90
info filesystems_setup:Create /app/bin/KPPMainApp to /app/bin/KPPMainAppV2::
info filesystems_setup:Update file absent or failed to backup::
info milestone:12.99:fs99:fs99
info system:emiting_event:start_x:start_x
debug sytem:event_emitted:start_x:start_x
info milestone:13.24:vi99:vi99
info display:started:time=13240:time=13240
info system:emiting_event:display_ready:display_ready
debug sytem:event_emitted:display_ready:display_ready
info battery:charged:cap=71,mV=3950,mAH=1056:cap=71,mV= 3950,mAH=1056
info system:emiting_event:battery_ready:battery_ready
debug sytem:event_emitted:battery_ready:battery_ready
info milestone:13.41:sys99:sys99
info system_setup:system_setup_after_shpm done::
info system:emiting_event:dbus_ready:dbus_ready
debug sytem:event_emitted:dbus_ready:dbus_ready
info dbus:check-update:status=2:status=2 dbus_ready sent
info demd:starting...::
info perfd:starting...::
info hardware:no_wan:: WiFi only device. No WAN found
info milestone:14.78:dy01:dy01
info milestone:15.19:dy02:dy02
info milestone:15.19:dy03:dy03
info milestone:15.69:xx00:xx00
info X:load:time=15780:time=15780
info X:xorg.conf:Generating xorg.conf:Generating xorg.conf
info X:xorg.conf:xorg.conf generated:xorg.conf generated
info milestone:17.16:xx50:xx50
info X:starting:time=17190:time=17190
info milestone:18.85:xx99:xx99
info X:started:time=18890:time=18890
info system:emiting_event:x_setup_ready:x_setup_ready
debug sytem:event_emitted:x_setup_ready:x_setup_ready
info bootactions:starting...::
info bootactions:waiting:for:for lipc...
info asr_setup:Not in asr mode::reason=flag file not present. shutting down asr_setup::
info system:emiting_event:bootactions_ready:bootactions _ready
debug sytem:event_emitted:bootactions_ready:bootactions_ ready
info register_oobe:registering...::
info locale:read:lang=en_GB.utf8,lc_all=en_GB.utf8:lang =en_GB.utf8,lc_all=en_GB.utf8 Retrieved Language
info system:emiting_event:langpicker_ready:langpicker_r eady LANG_PICKER_SCREEN_SHOWN=0
debug sytem:event_emitted:langpicker_ready:langpicker_re ady LANG_PICKER_SCREEN_SHOWN=0
info starting:ffsd...::
info register_oobe:done...::
info lab126_gui:KPP OOBE flag found...Showing KPP Progress Bar::
err unable:to:start:start ffsd mode ZTS
info ffsd:stopped...::
info asr_bt_reboot:asr_bt_reboot begin on started winmgr_ready::
info milestone:22.21i00i00
info milestone:22.46i99i99
info system:emiting_event:contentpack_font_ready:conten tpack_font_ready
debug sytem:event_emitted:contentpack_font_ready:content pack_font_ready
info milestone:24.15:fr00:fr00
info milestone:24.24:fr50:fr50
info milestone:24.31:fr51:fr51
info framework:starting:time=25480:time=25480
info framework:commandLine:HEAP = -Xmx45m -Xms45m -XX:MaxNewSize=4m -XX:SurvivorRatio=3 -XX:TargetSurvivorRatio=80 -Xss100k -XX:ReservedCodeCacheSize=3m -XX:+InitialGenPreTouch -XX:CompileThreshold=5000 -XX:CodeCacheMinimumFreeSpace=100k -XX:NmethodSweepFraction=6 -XX:NmethodSweepActivity=2 -XX:NmethodSweepMaxWaitTime=8 -XX:NmethodHotnessCounterResetValue=64 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=15 -XX:+UseAggressiveHeapShrink -XX:MaxInlineSize=16 -XX:MaxInlineLevel=2 -XX:-InlineSynchronizedMethods -minimal:HEAP = -Xmx45m -Xms45m -XX:MaxNewSize=4m -XX:SurvivorRatio=3 -XX:TargetSurvivorRatio=80 -Xss100k -XX:ReservedCodeCacheSize=3m -XX:+InitialGenPreTouch -XX:CompileThreshold=5000 -XX:CodeCacheMinimumFreeSpace=100k -XX:NmethodSweepFraction=6 -XX:NmethodSweepActivity=2 -XX:NmethodSweepMaxWaitTime=8 -XX:NmethodHotnessCounterResetValue=64 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=15 -XX:+UseAggressiveHeapShrink -XX:MaxInlineSize=16 -XX:MaxInlineLevel=2 -XX:-InlineSynchronizedMethods -minimal
info hardware:no_wan:: WiFi only device. No WAN found
info framework:##### Starting Java SE8 VM ::
info hardware:no_wan:: WiFi only device. No WAN found
info board_data_file :/opt/ar6k/target/AR6003/hw2.1.1/bin/AR6003_wfo_calfile.bin::
[ 30.434115] ath6kl: ath6kl_fetch_board_file: Board calibration file fetched: /opt/ar6k/target/AR6003/hw2.1.1/bin/AR6003_wfo_calfile.bin
[ 30.515661] ath6kl: MAC from kernel xx:xx:xx:xx:xx:3F
[ 30.984540] ath6kl: host only supports scatter of :1 entries, need: 16
info milestone:58.91:fr99:fr99
info framework:started:time=58990,delta=34690:time=5899 0,delta=34690
warn framework_setup:cannot get ffsdStatus::
info framework_setup:ffs Status=::
info framework_setup:ffsd is not active or ffs is complete::
info blanket_f:loading blanket module:usb:usb
info system:emiting_event:framework_ready:framework_rea dy
debug sytem:event_emitted:framework_ready:framework_read y
info bootactions:stopped...::
info stored:started::
info fastmetrics:starting...::
info stored:read_in_counters:REBOOTS=0, REBOOT_LIMIT=1, RESTARTS=0, RESTART_LIMIT=5:REBOOTS=0, REBOOT_LIMIT=1, RESTARTS=0, RESTART_LIMIT=5
info clickstreamHeartbeatMetricsFramework:Triggering metrics recording for the date 02/01/22::
info monitor:writing_file:file=/var/run/upstart/stored.restarts:file=/var/run/upstart/stored.restarts
Retrieved 423 keys for system/daemon/pmond/
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Old 11-20-2022, 12:32 PM   #562
wilcomir
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Posts: 1
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Device: PW2
Hello, I am trying to apply this metod to a PW2, firmware version is 5.15.1

Serial is working fine, but when I try to boot to diagnostics mode via
Code:
bootm 0xE41000
this is what I get:

Code:
uboot > bootm 0xE41000
## Booting kernel from Legacy Image at 80800000 ...
   Image Name:   Linux-3.0.35-lab126
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2634932 Bytes =  2.5 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

[    0.098642] boot: C def:bcut:batterycut=1
[    0.286352] LPDDR2 MfgId: 0x3 [Elpida]
[    0.290128]
[    0.290131] just text: vaddr c0150d44, va 0xc0150200 pa 0x801000c3 attr 0x6
[    0.302706]
[    0.302709] nmx6sl_wfi_iram: vaddr e084e000, va 0xe084e200 pa 0x904043 attr 0x2
[    0.311559]
[    0.311562] mx6sl_ddr: vaddr e0856000, va 0xe0856200 pa 0x905043 attr 0x2
[    0.319897]
[    0.319900] mx6sl_iomux: vaddr f40e0000, va 0xf40e0200 pa 0x20110c3 attr 0x149
[    0.330739]
[    0.330742] ANATOP: vaddr f40c8000, va 0xf40c8200 pa 0x20110c3 attr 0x149
[    0.345093]
[    0.345096] CCM: vaddr f40c4000, va 0xf40c4200 pa 0x20110c3 attr 0x149
[    0.357240]
[    0.357244] MMDC_P0: vaddr f41b0000, va 0xf41b0200 pa 0x21110c3 attr 0x149
[    0.367647]
[    0.367650] L2: vaddr f2a02000, va 0xf2a02200 pa 0xa02043 attr 0x149
[    0.377551]
[    0.377554] arm perif: vaddr f2a00000, va 0xf2a00200 pa 0xa00043 attr 0x149
3.0.35-lab126 #1 PREEMPT Mon Jun 1 23:54:30 PDT 2015 armv7l
Press [ENTER] for recovery menu...       0 //dev/mmcblk0p4:
CHS=4/16/99776 size=3269459968 bytes
flag type      first       last  lba first   lba size
Partition p1:
0x00 0x0b         16 <large>            16    6385648
    CHS: 0/1/1 - <large>
Partition p2:
Partition p3:
Partition p4:
BOOTING DEFAULT.
IP-Config: no devices to configure
kinit: Mounted root (ext3 filesystem) readonly.
kinit: init not found!
Is there anyone who knows what the issue could be?

Thanks!
V
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Old 12-13-2022, 02:14 AM   #563
MllwAlms
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Posts: 1
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Join Date: Dec 2022
Device: Paperwhite 7th Gen
Same Issue here

Quote:
Originally Posted by wilcomir View Post
Hello, I am trying to apply this metod to a PW2, firmware version is 5.15.1

Serial is working fine, but when I try to boot to diagnostics mode via
Code:
bootm 0xE41000
this is what I get:

Code:
uboot > bootm 0xE41000
## Booting kernel from Legacy Image at 80800000 ...
   Image Name:   Linux-3.0.35-lab126
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2634932 Bytes =  2.5 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

[    0.098642] boot: C def:bcut:batterycut=1
[    0.286352] LPDDR2 MfgId: 0x3 [Elpida]
[    0.290128]
[    0.290131] just text: vaddr c0150d44, va 0xc0150200 pa 0x801000c3 attr 0x6
[    0.302706]
[    0.302709] nmx6sl_wfi_iram: vaddr e084e000, va 0xe084e200 pa 0x904043 attr 0x2
[    0.311559]
[    0.311562] mx6sl_ddr: vaddr e0856000, va 0xe0856200 pa 0x905043 attr 0x2
[    0.319897]
[    0.319900] mx6sl_iomux: vaddr f40e0000, va 0xf40e0200 pa 0x20110c3 attr 0x149
[    0.330739]
[    0.330742] ANATOP: vaddr f40c8000, va 0xf40c8200 pa 0x20110c3 attr 0x149
[    0.345093]
[    0.345096] CCM: vaddr f40c4000, va 0xf40c4200 pa 0x20110c3 attr 0x149
[    0.357240]
[    0.357244] MMDC_P0: vaddr f41b0000, va 0xf41b0200 pa 0x21110c3 attr 0x149
[    0.367647]
[    0.367650] L2: vaddr f2a02000, va 0xf2a02200 pa 0xa02043 attr 0x149
[    0.377551]
[    0.377554] arm perif: vaddr f2a00000, va 0xf2a00200 pa 0xa00043 attr 0x149
3.0.35-lab126 #1 PREEMPT Mon Jun 1 23:54:30 PDT 2015 armv7l
Press [ENTER] for recovery menu...       0 //dev/mmcblk0p4:
CHS=4/16/99776 size=3269459968 bytes
flag type      first       last  lba first   lba size
Partition p1:
0x00 0x0b         16 <large>            16    6385648
    CHS: 0/1/1 - <large>
Partition p2:
Partition p3:
Partition p4:
BOOTING DEFAULT.
IP-Config: no devices to configure
kinit: Mounted root (ext3 filesystem) readonly.
kinit: init not found!
Is there anyone who knows what the issue could be?

Thanks!
V
I'm having the exact same issue. From what I've found, all signs point to bad emmc. In recovery, using bist and then mmcinfo, I received the following message.

Quote:
Card did not respond to voltage select!
Device: FSL_ESDHC
Manufacturer ID: 0
OEM: 0
Name: Revision: 0x0
Tran Speed: 0
Rd Block Len: 0
MMC version 0.0
High Capacity: No
Capacity: 0
Bus Width: 1-bit
Current Partition for boot: Not bootable
Current boot width: 1-bit SDR
According to this thread, this signifies the bad emmc. My device still functions fine and reboots. Is this really bad emmc? I'm wondering if fw 5.12.2 is causing this.

Last edited by MllwAlms; 12-13-2022 at 02:19 AM.
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Old 12-13-2022, 08:12 PM   #564
dhdurgee
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Posts: 827
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Join Date: Jun 2010
Device: K3W, PW4
Quote:
Originally Posted by MllwAlms View Post
I'm having the exact same issue. From what I've found, all signs point to bad emmc. In recovery, using bist and then mmcinfo, I received the following message.



According to this thread, this signifies the bad emmc. My device still functions fine and reboots. Is this really bad emmc? I'm wondering if fw 5.12.2 is causing this.
What happens if you side load a new book to the Kindle? If it does appear to be successfully loaded and you are able to open it to read, what happens if you restart the Kindle? Is the new book still there after a restart?

If this works then it seems to me the emmc is working. Perhaps one of the partitions is damaged? I imagine a damaged partition can be restored or corrected, but I don't know the procedures and suspect it varies by model and firmware.

Dave
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