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Christian Vogel vogelchr at vogel.cxHi everyone, Willem wrote: > i managed to get hello_world working on my c121, connected through a > pl2303 usb/serial cable to my macbookpro. > > but found that the connection is extremely noisy. > often the movement of me putting down the phone on the table is enough > to break the upload. > is that a common problem with these headphone/serial cable plugs? My question to the more experienced Calypso hackers (Harald?): How reliable are your uploads, do they work at the first attempt all the time, or should we expect some intermittent errors? How many? I'm using a self-made cable consisting of a known good FT232R converter @ 3.3V and a cut off headset cable (that also worked flawlessly without any noise on another mobile phone before). My C123 also looks pristine. I manage to upload and run hello world successfully in maybe one out of ten attempts, often have to remove the battery because the phone just gets stuck. So I have ordered a new cable from Akku-King as suggested on the Wiki. Chris