Release 0.2 release bricked TS100 (originally v3.42)

[hugovincent]

Hi, I seem to have bricked my TS100 using release 0.2. I'm not sure what's gone wrong since everything seemed to proceed as in the instructions. I first installed runtime.hex using stock mass storage bootloader. It successfully booted with the IronOS logo and DFU v0.2 shown on screen. I then backed up the stock bootloader:

% sudo dfu-util -d 28e9:0189 -U backup.bin  -s 0x08000000:0x4000

Password:
dfu-util 0.11

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Opening DFU capable USB device...
Device ID 28e9:0189
Device DFU version 011a
Claiming USB DFU Interface...
Setting Alternate Interface #0 ...
Determining device status...
DFU state(2) = dfuIDLE, status(0) = No error condition is present
DFU mode device DFU version 011a
Device returned transfer size 1024
DfuSe interface name: "Internal Flash "
Upload	[=========================] 100%        16384 bytes
Upload done.

% md5 backup.bin 
MD5 (backup.bin) = cd1038179b3fda32e75d6f300d153cb3

That hash matches that listed for TS100 v3.42 in https://github.com/Ralim/IronOS-dfu/blob/mainline/docs/BackUp.md#checking-your-bootloader-backup-is-valid so it looks good. Then I power cycled, then installed the DFU bootloader:

% dfu-util -D bootloader.dfu
dfu-util 0.11

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Match vendor ID from file: 0483
Match product ID from file: df11
Multiple alternate interfaces for DfuSe file
Opening DFU capable USB device...
Device ID 28e9:0189
Device DFU version 011a
Claiming USB DFU Interface...
Setting Alternate Interface #0 ...
Determining device status...
DFU state(2) = dfuIDLE, status(0) = No error condition is present
DFU mode device DFU version 011a
Device returned transfer size 1024
DfuSe interface name: "Internal Flash "
File contains 1 DFU images
Parsing DFU image 1
Target name: ST...
Image for alternate setting 0, (1 elements, total size = 5384)
Setting Alternate Interface #0 ...
Parsing element 1, address = 0x08000000, size = 5376
Erase   	[=========================] 100%         5376 bytes
Erase    done.
Download	[=========================] 100%         5376 bytes
Download done.
Done parsing DfuSe file

Again, seems good (no errors, Download done. seen). At this point I power cycled the iron by unplugging and replugging it in, and it seems to be bricked. Any ideas? (I have an ST-Link and will make up a cable for SWD reflashing... I'm reporting as an issue in case there is a bug or doc improvement that could be made).

Thanks!