[Pico Ultra W] Can NOT recovery using button BOOT

• Paulo_Zaneti

  Posts: 1

  Joined: 2025-07-17 0:30

  2025-07-17 0:46

  Hi,
  
  I have a Luckfox Pico Ultra W board and I was trying to customize the u-boot.
  Unfortunately I made a mistake in the code and the u-boot is aborting execution before entering the download mode.
  
  Now the u-boot stops execution with this message:
  

  Code: Select all

  data abort
  pc : 002327ea  lr : 00232ffb
  sp : 0edf1300  ip : 00000020     fp : 0edf17b8
  r10: ffffffff  r9 : 0edffe00     r8 : 0ffc2848
  r7 : 0edf17b8  r6 : a39e3cab     r5 : ffffffff  r4 : 0edf13a9
  r3 : a39e3cab  r2 : a39e3cab     r1 : a39e3caa  r0 : a39e3cab
  Flags: nzCv  IRQs off  FIQs off  Mode SVC_32
  
  
  Call trace:
    PC:   [< 002327ea >]
    LR:   [< 00232ffb >]
  
  Stack:
          [< 002327ea >]
          [< 00232ffb >]
          [< 00233411 >]
          [< 00233691 >]
          [< 002336fb >]
          [< 93c65cab >]
  Unknown entry: 84000000
  
  Copy info from "Call trace..." to a file(eg. dump.txt), and run
  command in your U-Boot project: ./scripts/stacktrace.sh dump.txt 
  
  Resetting CPU ...
  
  ### ERROR ### Please RESET the board ###
  

  And the BOOT button does not put the board into MASKROM mode.
  
  Is there a way to recover from this ?

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