Solution: The playlist might be empty or incorrectly formatted. Try loading the same M3U URL in a desktop player like VLC Media Player. If VLC also shows no channels, the problem is with your provider, not Htv.
Under Security, lock mature channels or delete options. Registration is required to set a master PIN. Htv 3.7.1 Register
Requirement: Minimize output voltage ripple (<10mV).
Solution: Force MODE_SEL = 0 (PWM) permanently. Solution: The playlist might be empty or incorrectly
// In initialization
reg_val = i2c_read_byte(DEV_ADDR, REG_HTV_CTRL);
reg_val &= ~0x02; // Clear bit 1
i2c_write_byte(DEV_ADDR, REG_HTV_CTRL, reg_val);
Once the Htv 3.7.1 Register is complete, you are not done yet. To get the most out of the app, perform these post-registration tweaks: Once the Htv 3
i2c_write_byte(DEV_ADDR, REG_HTV_CTRL, reg_val);