newRPL - build 1255 released! [updated to 1299]

[Claudio L.]

(03-03-2018 02:16 PM)osg Wrote:  hello,

I am having trouble to upgrade FW on the calculator.


Anyone else having this issue?
Can you advice how can I flash new version or revert to stock firmware?

Thanks for help.

Jan

This issue is not related to newRPL, since you are trying to connect the original bootloader with the original connectivity kit. If you were successful before, it should work again.
One thing to test: USB drivers in Windows are bound to a device attached to a certain USB port. If you plug the device later on a different port, it will try to install a new instance of the driver for the other port. Perhaps you are connecting it on a different port than the one you installed the driver on? It could've happened that you disabled signed drivers, installed them on a certain USB port, then windows re-enables the signed drivers lock (behind your back), and when you plug it in a different port it is unable to install drivers there. I'm not certain this is your problem, but it's one conjecture that fits your symptoms. Try different ports, trying to find which one you used when it worked.