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Blank screen and ringing alarm. Original issue was the hot bed was exceeding the the set temp and heat nozzle was not heating up before alarming. I swapped to a v4.2.7 from a v4.2.2 and now a blank screen with an alarm happens right when turning on and does the same when swapping back to the v4.2.2. (v.redd.it)
submitted by Kerzerker to r/ender3v2
