This is a cache of https://discuss.96boards.org/t/rb5-always-in-9008-mode-and-qdl-failed-to-write-protocol-error/12017. It is a snapshot of the page at 2024-11-01T14:22:14.013+0000.
RB5 always in 9008 mode and qdl: failed to write: Protocol error - Qualcomm RB5 - 96Boards Forum

RB5 always in 9008 mode and qdl: failed to write: Protocol error

Products Support Qualcomm RB5
#1

After one flashing , the RB5 can’t be booted up. The board has no response even I pressed the button for a long time.

And once I connect the USB into a ubuntu PC and code “lsusb” command, it shows the board is always in the 9008 mode(QDL).

So I tried the board recover like:

Use this bootloader:
https://releases.linaro.org/96boards/rb5/linaro/rescue/21.08/

But report the protocol error “qdl: failed to write: Protocol error”:

$ sudo …/…/qdl/qdl prog_firehose_ddr.elf rawprogram?.xml patch?.xml
HELLO version: 0x2 compatible: 0x1 max_len: 1024 mode: 0
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END OF IMAGE image: 13 status: 0
DONE status: 1
LOG: INFO: Binary build date: Nov 20 2020 @ 06:35:11
LOG: INFO: Binary build date: Nov 20 2020 @ 06:35:11
LOG: INFO: Chip serial num: 3244692764 (0xc166151c)
LOG: INFO: Supported Functions (15):
LOG: INFO: program
LOG: INFO: read
LOG: INFO: nop
LOG: INFO: patch
LOG: INFO: configure
LOG: INFO: setbootablestoragedrive
LOG: INFO: erase
LOG: INFO: power
LOG: INFO: firmwarewrite
LOG: INFO: getstorageinfo
LOG: INFO: benchmark
LOG: INFO: emmc
LOG: INFO: ufs
LOG: INFO: fixgpt
LOG: INFO: getsha256digest
LOG: INFO: End of supported functions 15
qdl: firehose operation timed out
LOG: INFO: Calling handler for configure
LOG: INFO: Storage type set to value UFS
LOG: INFO: Calling handler for program
[PROGRAM] flashed “PrimaryGPT” successfully
LOG: INFO: Calling handler for program
[PROGRAM] flashed “BackupGPT” successfully
LOG: INFO: Calling handler for program
ERROR: n = -1, errno = 71 (Protocol error)
qdl: failed to write: Protocol error

#2

Hello
Please follow below steps for recovery

  1. (On Host)Run ‘adb kill-server’
  2. (On Host)Run ‘sudo systemctl stop ModemManager’
  3. (On Target) Press ‘F_DL’ button and hold. (Don’t release before attempting flash)
  4. (On Target) Power on the device and wait for about 5 seconds.
  5. (On Target) Connect to Host machine via USB type-C
  6. (On Host) Run qdl downloader ‘sudo …/…/qdl/qdl prog_firehose_ddr.elf rawprogram?.xml patch?.xml’

Regards,