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Forum Index : Microcontroller and PC projects : WebMite: Pico 2W flash problem

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lizby
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Joined: 17/05/2016
Location: United States
Posts: 3765
Posted: 02:50pm 02 Jun 2026
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I bought some Pico 2Ws from Adafruit. I'm having trouble trying to flash them. After apparently successful flash, I get:

WebMite MMBasic RP2350A Edition V6.03.00RC14
Copyright 2011-2026 Geoff Graham
Copyright 2016-2026 Peter Mather

Formatting the A: drive
[CYW43] error: hdr mismatch 0c0c ^ fff3
                                      [CYW43] do_ioctl(2, 263, 1008): timeout
                                                                             [CYW43] error: hdr mismatch 0102 ^ feff
                                                                                                                    [CYW43] do_ioctl(2, 263, 10): timeout
                                [CYW43] do_ioctl(0, 262, 20): timeout
                                                                     [CYW43] do_ioctl(2, 263, 20): timeout
                                                                                                          [CYW43] do_ioctl(2, 263, 20): timeout


I've tried universal_flash_nuke.uf2, but that has not made a difference.


PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on FOTS
 
matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 11402
Posted: 02:51pm 02 Jun 2026
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Known issue in recent releases. Will be fixed in the next

UPDATE
Fix in RC15 - just posted
Edited 2026-06-03 02:12 by matherp
 
lizby
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Joined: 17/05/2016
Location: United States
Posts: 3765
Posted: 04:37pm 02 Jun 2026
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Working now; thanks.
PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on FOTS
 
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