Pinecil V2: losing connection with tip, temps going crazy

[genesi5]

Hello there!

I've been using Pinecil V2 for several weeks, and one day it didn't want to turn on, both with PD and DC barrel. I was looking the troubleshoot in web and one of the reasons (which appeared to be true) was FUSB302MPX PD controller, so i desoldered it with solder fan. It helped, iron started working, since i use DC barrel for the most part, so, lack of PD feed doesn't really bother me.

But then i noticed something strange.

When i turn on my iron, on idle state (i.e. not heated up), it loses connection with tip about every 10-15 seconds, and idle temp goes higher than it supposed to be. When i heat the tip up, it also going crazy, peaking up to ~477°C for a short moment.

https://github.com/Ralim/IronOS/assets/25093320/785a4adc-0854-42ab-8910-c46185b425ad

What could it be? Tip? Hardware? Firmware?

What i am running:

• Device: Pinecil V2
• Firmware: 2.21.5D96470
• Tip: stock TS-B2
• Power supply: have two of them:
  • LED power supply, 24V, 6.25A (150W), (23,1V on input, according to device GUI)
  • another LED power supply, 12V, 12.5A (150W), (11,6V on input, according to device GUI)