Xbox One S

Problem DescriptionSymptomsSolutionSource
No power.- Light stays on for 10 seconds.

- Fan spins.
- Test the HDD using CrystalDiskInfo or similar software to ensure it’s a good drive.

- This can also be caused by a dead disc drive.
Source
No power.PSU makes a chirping noise.Defective PSU, replace.Source
No power.- Try a known working PSU.

- This can be caused by a short on the disc drive daughterboard.

- A bad HDMI retimer IC can short the 5V rail and cause no power.

- Check mosfet drivers (NCP5901) for corrosion and/or damage on power phases.

- Check 2ohm resistors on power phases.

- Check mosfets on power phases (TPN8R903NL)
Source
No display.- Test the HDD using CrystalDiskInfo or similar software to ensure it’s a good drive.

- If the drive is good then this is likely caused by something dying in the HDMI circuit. Start with replacing the port.

- If the above doesn’t help, test for shorts near the HDMI retimer IC and the ESD Protection IC.

- Test the HDMI filters.
Source
Error E100 00000703 80910008There is a short present on the disc drive daughterboard.Source
”Something went wrong” Error- Test the HDD using CrystalDiskInfo or similar software to ensure it’s a good drive.

- This can also be caused by a corrupt OS, attempt to reinstall via USB.
Source
Beep on beep off.This can be caused by basically ANYTHING.

- Check for corrosion on the board.

- Inspect all ports for damage. (Ethernet, HDMI, USB, etc.)

- Check 1.1v, 1.8v, 3.3v, 5v rails for standby voltages (with PSU plugged in)

- Check for shorts around the Southbridge IC.
Source

Good Tail Insertion Tester Reading