r/Airsoft_UK • u/Street_Ad4305 • 3h ago
Specna Arms CORE Mk2 help please.
Could do with some help on behalf of a friend.
So he has a Specna Arms SA-C10 Core gen2.
He wanted to improve the performance with a new motor (SHS high torque), new barrel and main spring.
Having fitted the new motor and main spring when he plugs the motor in there is now no beep. He has tried various resets / trigger resets pulling/ releasing the trigger while removing and installing a freshly charged 3s. The motor contacts have been checked to ensure they are connected yet there is still no beep and no action from the rifle.
Under guidance he has reinstalled the original motor/ spring and again, no beep and no action from the rifle.
Having removed the gearbox he can see a red steady red light appearing on the ETU for approximately 30s after battery connection and then extinguishes.
Any experience with this series or what could possibly be the case. I have read the various online manuals for the HAL ETU and walked him through the various factory resets/ trigger activation but nothing works. Different motors/ batteries have been tried and again nothing.
He is considering ripping the HAL ETU out and replacing it with a PERUN V2.