PS5 Pro CFI-7000 shuts down after 2 seconds — unknown UART error 80801

Hello everyone. I’m from Ukraine and I’m trying to diagnose a PS5 Pro CFI-7000 that suddenly shut down while running a relatively undemanding PS4 game.

The console has only around 250 hours of use. Because of the war, power outages and the general situation, I barely had the opportunity or state of mind to play. Unfortunately, the warranty has now expired.

The repair situation here is also extremely difficult. The main official PlayStation service centre in Ukraine was destroyed during a missile strike, and there is currently no functioning official repair option available to me. Sony’s out-of-warranty service is described as an exchange for a refurbished console rather than a repair of my own unit. Replacing the console is also very expensive here, so I am trying to save this one.

• The console beeps and shows a blue light.
• The fan starts spinning.
• After 1–2 seconds, all power is cut.
• The blue light goes out and the fan stops.
• It never reaches the white light.
• Safe Mode is impossible because it shuts down before the second beep.

There was no burning smell, unusual noise, visible dust or previous overheating.

I have already removed the additional M.2 SSD and detachable Blu-ray drive, disconnected every cable and accessory, tested it with only the power cable connected, left it unplugged for more than 24 hours and held the power button for 60 seconds while unplugged. Nothing changed.

The console was connected through a high-quality voltage stabilizer and battery backup because power fluctuations are common here.

An experienced private technician checked the board:

• No visible damage.
• No obvious short circuits.
• Static voltages and resistance measurements appear normal.
• A known-good PSU has not yet been confirmed as a test.

The UART log shows:

• 80810001 — General Power Failure / Power Sequence Error.
• 80000009 — Unexpected Power Loss or Shutdown Failure.
• 80800022 — No/Bad Communication Between APU and RAM. This appears only occasionally.
• 80801002 — High-priority error not found in the Console Service Tool database. This repeats across many startup attempts.

One raw 80801002 entry is:

OK 00000000 80801002 00000001 FF100005 10000100 2013 0036 1EB1 1D1D:E4

Other attempts contain the same FF100005 10000100 2013 0036 sequence but different trailing values.

Could 80801002 be a PS5 Pro-specific code related to the additional 2 GB DDR5 system-memory chip, its power rail, Southbridge or another power-sequencing circuit? The intermittent 80800022 may be a secondary result rather than the primary fault.

Has anyone encountered 80801002 on a PS5 Pro or knows how to interpret the additional raw values? Would testing with a known-good PSU still be the first step, or should the technician focus on motherboard power sequencing and the DDR5/GDDR6 rails?

I will attach screenshots of the complete UART logs. Any board-level advice would mean a lot to me.