USB41 while upgrading the 41CL

[aurelio]

(02-24-2021 09:18 PM)Sylvain Cote Wrote:  

(02-24-2021 08:22 PM)aurelio Wrote:  Maybe I should have just swapped the USB41 port , or erased the module before to use it like a simple power source to avoid whatever conflict ..

Hein ? ... ok ... I thought from the beginning that you were talking about using a Power-41 module but with your last comment I just realized that is was about the USB-41 module, DOH!
I have to check to see if the USB-41 module is providing power to the calculator, not sure about that, actually I would expect it would not.

In any case, I never use any external power source when I update my 41CL's and I never got any problem.
I even did an update with depleted cells just to test the scenario, for sure I temporary lost a Flash sector but as soon that I put back recharged cells and restarted the update process, the Flash sector got reprogrammed correctly.

Sylvain

Sylvain thank you once more for your help as always, i can say just that the calculator + the USB-41 module without cells or batteries works perfecltly, just shows the BAT annoucer .
I think that Diego explained it somewhere time ago if I correcltly remember,


Edit:

I checked back in the Forum:

"-USB-41 can provide power undefinitely without batteries inserted, even when running a program continuously (tested for more the 24 hours) provided no other devices are connected."

you can find it here


PS: Diego, thanks