Hi everyone, I recently replaced the battery in my Cypher Labs Theorem 720, and it's now working perfectly. For those who own this DAC, if you notice the LED light changing colors when the unit is plugged in and powered on, it could indicate a dead battery causing power issues. This was the...

@fishda30 Hi again, my DAC suddenly unable to hear sound, can only hear the statics and the LED is kept changing colors. Wanna know is it because of battery that cause this issue? Currently still haven't change the battery yet.

Is it this screw that you referring to right?

Noted, thank you for the information. Want to know what type of 18650 batteries do they used? Button top or Flat top? And usually this kind of replacement can done by any technician right? Also you managed to remove the volume knob to open the internal, mine unable. Can show me how to remove it?

Hi everyone, got some questions wanted to ask : 1. Do anyone know how to replace the battery of the CypherLabs Theorem 720? Can show me step by step to disassembly and replace it? Currently I'm only able to unscrewed the screws at outside but unable to remove the volume knob, I'm not sure how...