hmm sorry for retrieve this old post, but the device manager doese not find my Xperia ZL C6503 at all...
The phone does not power on anymore. Well, when the phone is pluged to power, the red LED is on (even after 25+ hours). I am not able to acess the boot loader, tried all combinations I found. Therefore i tried your manual to retrieve the phone. I disambled the MB and used a paperclip to connect the testpoints, but really nothing happens?! There is no reaction in the device manager, no device can be found via s1tool. I alredy tried different PCs as well as different power plug, usb ports, usb cabels etc... Normally there should be any reaction, shouldn't it?
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