I have a matching set (2 x) X1C’s with the AMS.
When I turn the powercord on to both printers (hooked up to the same wallsocket)
A/ starts up at arount 30-35 seconds and turns the display on
B/ starts up at around 3 minutes and turns the display on
Both are updated and earlier started up side by side within seconds ( a couple at worst) and I cannot figure out wuzz going on nor how to fix this. (Tried several different firmwares - still same weird time differences)
So thus I come here in hopes youll extend your expertize mates and help me fix this 
Startup as in from time to power on till ready to print?
Howdy mate, thanks for replying.
Yes, this is from power on and until the display turns on and shows picture/it is started up. Edited above
First make sure the slow one doesn’t have a sd card inserted.
If not that, sounds like it could be an emmc problem, not sure how to fix, but start by going in and completely clearing the cache and deleting any models/videos.
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Definitely change the SD cards and see if the problem follows the SD card. If so, consider formattnig first, replacing second
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Hmm noticed I have a red dot and following the cogwheel it says 500 300 2 55 you need to log in again?!?
I am logged in and I have full contact between PC and both printers when they are well started up and all…
So any possibility thats part of the issue?
I have 256gb sandisk sdxc memory cards in each,
also have Samsung Evo 512gb cards for each but they only work every other time - they do not like Samsung sdxc cards at all… (have 2 x 128gb Samsung Evo cards and they act precisely as the 512’s…)
Both printers claims it was too long since I logged in that the login expired and that I need to log in again - this is also highlighted under each printertab where also bambuHandy tells me to log in again, I dunno if I even remember the log/pass biting my nails
What exactly is it telling me to do? Log out on the printer display/screen/where? And log in on the printer display/screen?
Having the mother of migraine/stomachflus and my mental speed is on Monty Python’s special olympics magnitude
Appreciate clear instructions if you be so kind mates.
(Hitting the AI takes me to some completely unrelated wifi log/timber executions)
May the force be with you mates,
/Silverbullit the Swedish Chupacabra
Probably just wants you to log into the app itself, nothing to do with the printer.
Are you still stuck?
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Yes mate, still stuck… and thanks for responding.
Sorry for writing when migrained, but allow me to clarify.
Well the printers displays has a red dot in the tabs and following that they claim ive been idle too long and my logins expired and I need to log out and login again,
the bambuhandyapp has underneath each printer the same messages highlighted in red (well brownish red)
Where on the printer do I log out and where do I login again and also is there a reminder if I forgot logins/passwords?
And nope mate, slowness not solved.
Having the mother of stomacheflues & migraines and wish a sharper mind right now.
So any clear guidance is most welcome!
May the force be with you mates,
/Silverbullit the Swedish Chupacabra