[flashrom] help with flashrom

[Nikos Mixailidis]

hello everybody i need your help
i try to flash my bios from my tablet onda v919
i try to backup my current bios with this command: sudo flashrom -p
ch341a_spi --read backup.bin and i get this error
Calibrating delay loop... OK.
Couldn't open device 1a86:5512.
Error: Programmer initialization failed.
what am i doing wrong? i find this guide to help me
https://peejseej.nl/2016/05/flash-an-bricked-onda-v919-air-ch-bios/comment-page-1/
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