<html>Thanks Stefan.<br /><br />Will try with shorter cables.<br /><br />BR.<br /><br />--Marius--<br /><br />On Monday, October 2, 2017 14:43 CEST, Stefan Tauner <stefan.tauner@gmx.at> wrote:<br /> <blockquote type="cite" cite="0LfjlS-1dVwu42IV0-00pOCP@mail.gmx.com">On Mon, 02 Oct 2017 08:50:00 +0200<br />"Marius Schrecker" <marius.schrecker@lyse.net> wrote:<br /><br />> CH341a programmer -> 1.8V adapter -> test clip with original ribbon cable clipped to one of the new chips.<br />><br />> The flash procedure worked and verified flawlessly, so there is either some interference from trying to flash the chip on board, or the original chip is damaged.<br /><br />If by original ribbon cable you mean the one with a length of some dozen<br />centimeters... then you have broken the first rule of the flash club:<br />short cables!<br /><br />--<br />Kind regards/Mit freundlichen Grüßen, Stefan Tauner</blockquote><br /><br /><br /> </html>