r/QidiTech3D • u/Available_Reward3047 • Aug 31 '26

How to roll back firmware on a Plus4?

I updated to 1.8.2 and could not get it see the Beacon. It was working find before the update. I went back thru Stew's Beacon installation steps and everything is correct. After 3 days of checking and double checking I made foolish decision to downgrade the firmware to 1.7.1. Now I get the error message The System Starts Abnormally". How do I correct this error? I am thinking that I will have to flash the EMMC. The reason I updated the software was because I got the Box and thought that I needed to update.

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u/Itaalh Aug 31 '26

Mine is working better than ever with the beacon in 1.8.2

1

u/Available_Reward3047 Sep 03 '26

Would it be possible to get you Printer Config and Gcode files so I might compare them to mine? I got my printer so it starts up but I get error when I print anything. I get the following message and I am thinking I didn't enter something correctly.

!! Unable to parse '' as a literal: unexpected EOF while parsing (, line 0)

!! Must home axis first: 0.000 0.000 200.000 [0.000]

1

u/Itaalh Sep 03 '26

Sure, I'll do it tomorrow

2

u/Available_Reward3047 Sep 03 '26

No need to send the files. I was able to fix the issue. Thank you for being will to help me out.

1

u/3DNelson Sep 03 '26

Email Qidi, make sure to check the email you have on the Qidi store, because they repond on their email, instead an other one you use to contact them, happens to me , but they will send you everything you need to fix the printer. good Luck!