Hi Markus, programming in external circuit always requires some knowledge and experience, even with REVELPROG-IS. We do not support CH341A, we are manufacturer of REVELPROG-IS . I highly recommend you to desolder the chip and programm it in adapter - it's safer. You can read more about possible tra...

This chip is supported with REVELPROG-IS (FLASH -> 25 series -> Winbond -> W25Q256JW). "E" package (page 94 in datasheet https://www.winbond.com/resource-files/w25q256jw%20spi%20revb%2012082017.pdf) is WSON-8 8x6mm so you will need WSON-8 8x6 adapter for it (https://www.reveltronics.com/e...