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February 27, 2026
Question

STM32MP157 + MYD-YA157C: TSV flashing fails with “failed to download Sector[0]”

  • February 27, 2026
  • 1 reply
  • 151 views

Hi,

I’m working with a MYIR MYD-YA157C (STM32MP157AAC) board and I’m trying to restore a board using STM32CubeProgrammer (USB / DFU mode) with a FlashLayout TSV.

The board is custom made , but the HW should not be a problem

But i am running into erorr:

 

16:47:55 : Download in Progress:
16:47:56 : Error: failed to download Sector[0]
16:47:56 : Error: failed to download the File
16:47:56 : Error: Download partition 0x21 failed
16:47:56 : Error: TSV flashing service failed
16:47:56 : Disconnected from device.

 

Little bit of a background

The chip comes with preloaded yocto , and after trying to flash our distro we get this erorr 

 

I tried the following things

Remove everything from the EMMC - Nothing helps

Chaning offsets - Did not help

Use UDF tool - Did not help

Tried on different computer - Did not help

Tried different cable  - Did not help

 

It is very strange 

I attached logs from Cube programmer

 

@Aimen1 

 

Could somebody help us with some suggestions

1 reply

Olivier GALLIEN
Technical Moderator
March 26, 2026

Hi @lepot 

I advise you to contact Myrtech support at fist

Olivier 

Olivier GALLIEN In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.