Hi everyone, I have this PS5 Slim EDM-044 which turns on but the blue light keeps flashing until I disconnect the power.
I didn't find any shorts on the board. I found differences value compared to another board regarding the SSD controller, which I proceeded to replace.
This is the UART error:
[*] Operation: Run Read Error Codes
[Slot #] [Date Time] [Error Code] [Priority] [Error Message]
Failed to read data
01 21/08/2026 08:25:47 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 000000DF FFFF00E5 10000100 217B 0036 439A 1DDF:78)
Click for TSB Information
02 21/08/2026 08:25:47 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 000000DF FFFF0005 10000100 2157 0036 4396 1DDE:4A)
Click for TSB Information
03 21/08/2026 08:25:47 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 000000DF FFFF0005 10000100 2157 0036 4393 1DDC:45)
Click for TSB Information
04 21/08/2026 08:25:47 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 000000DF FFFF0005 10000100 2157 0036 4393 1DDC:3B)
Click for TSB Information
05 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF00E5 10000100 217B 0036 33EB 1C32:4D)
Click for TSB Information
06 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF00E5 10000100 217B 0036 33E5 1C31:3F)
Click for TSB Information
07 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF0005 10000100 2157 0036 33E0 1C30:17)
Click for TSB Information
08 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF0005 10000100 2157 0036 33DB 1C30:28)
Click for TSB Information
09 21/08/2026 08:23:52 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 0000006C FFFF0005 10000100 2157 0036 33DB 1C30:1E)
Click for TSB Information
0A 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF00E5 10000100 217B 0036 3250 1CB8:3D)
Click for TSB Information
0B 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF00E5 10000100 217B 0036 324D 1CB8:50)
Click for TSB Information
0C 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF0005 10000100 2157 0036 3248 1CB7:21)
Click for TSB Information
0D 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF0005 10000100 2157 0036 3244 1CB6:1C)
Click for TSB Information
0E 21/08/2026 08:23:35 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 0000005B FFFF0005 10000100 2157 0036 3244 1CB6:12)
Click for TSB Information
0F 21/08/2026 08:23:48 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 00000068 FFFF00E5 10000100 217B 0036 370B 1E40:32)
Click for TSB Information
10 21/08/2026 08:23:48 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 00000068 FFFF00E5 10000100 217B 0036 3706 1E40:26)
Click for TSB Information
11 21/08/2026 08:23:48 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 00000068 FFFF0005 10000100 2157 0036 3700 1E40:FE)
Click for TSB Information
12 21/08/2026 08:23:48 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 00000068 FFFF0005 10000100 2157 0036 3700 1E40:F4)
Click for TSB Information
13 21/08/2026 08:56:59 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000082F FFFF0005 10000100 2157 0036 378C 1E44:2F)
Click for TSB Information
14 21/08/2026 08:56:59 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000082F FFFF0005 10000100 2157 0036 3788 1E44:24)
Click for TSB Information
15 21/08/2026 08:56:59 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 0000082F FFFF0005 10000100 2157 0036 3788 1E44:1A)
Click for TSB Information
16 10/02/2040 05:02:33 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 195776BD 140000E5 10010000 217B 003E 24D8 194D:37)
Click for TSB Information
17 10/02/2040 05:02:33 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 195776BD 14000005 10010000 217B 003E 24D7 194D:21)
Click for TSB Information
18 10/02/2040 05:02:32 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 195776BC 14000005 10010000 217B 003E 24D6 194E:20)
Click for TSB Information
19 10/02/2040 05:02:32 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 195776BC 14000005 10010000 217B 003E 24D6 194E:16)
Click for TSB Information
1A 06/02/2040 04:44:12 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 19522C70 150000E5 10010000 217B 003E 341E 1F64:16)
Click for TSB Information
1B 06/02/2040 04:44:12 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 19522C70 150000E5 10010000 217B 003E 341E 1F63:15)
Click for TSB Information
1C 06/02/2040 04:44:12 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 19522C70 15000005 10010000 217B 003E 341E 1F62:FF)
Click for TSB Information
The secondary error is 217B, which should correspond to "Dev WLAN BT RESET ASSERT NEGATE." Could this be caused by the Wi-Fi module?
Any tips on what to check?
I didn't find any shorts on the board. I found differences value compared to another board regarding the SSD controller, which I proceeded to replace.
This is the UART error:
[*] Operation: Run Read Error Codes
[Slot #] [Date Time] [Error Code] [Priority] [Error Message]
Failed to read data
01 21/08/2026 08:25:47 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 000000DF FFFF00E5 10000100 217B 0036 439A 1DDF:78)
Click for TSB Information
02 21/08/2026 08:25:47 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 000000DF FFFF0005 10000100 2157 0036 4396 1DDE:4A)
Click for TSB Information
03 21/08/2026 08:25:47 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 000000DF FFFF0005 10000100 2157 0036 4393 1DDC:45)
Click for TSB Information
04 21/08/2026 08:25:47 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 000000DF FFFF0005 10000100 2157 0036 4393 1DDC:3B)
Click for TSB Information
05 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF00E5 10000100 217B 0036 33EB 1C32:4D)
Click for TSB Information
06 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF00E5 10000100 217B 0036 33E5 1C31:3F)
Click for TSB Information
07 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF0005 10000100 2157 0036 33E0 1C30:17)
Click for TSB Information
08 21/08/2026 08:23:52 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000006C FFFF0005 10000100 2157 0036 33DB 1C30:28)
Click for TSB Information
09 21/08/2026 08:23:52 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 0000006C FFFF0005 10000100 2157 0036 33DB 1C30:1E)
Click for TSB Information
0A 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF00E5 10000100 217B 0036 3250 1CB8:3D)
Click for TSB Information
0B 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF00E5 10000100 217B 0036 324D 1CB8:50)
Click for TSB Information
0C 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF0005 10000100 2157 0036 3248 1CB7:21)
Click for TSB Information
0D 21/08/2026 08:23:35 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000005B FFFF0005 10000100 2157 0036 3244 1CB6:1C)
Click for TSB Information
0E 21/08/2026 08:23:35 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 0000005B FFFF0005 10000100 2157 0036 3244 1CB6:12)
Click for TSB Information
0F 21/08/2026 08:23:48 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 00000068 FFFF00E5 10000100 217B 0036 370B 1E40:32)
Click for TSB Information
10 21/08/2026 08:23:48 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 00000068 FFFF00E5 10000100 217B 0036 3706 1E40:26)
Click for TSB Information
11 21/08/2026 08:23:48 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 00000068 FFFF0005 10000100 2157 0036 3700 1E40:FE)
Click for TSB Information
12 21/08/2026 08:23:48 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 00000068 FFFF0005 10000100 2157 0036 3700 1E40:F4)
Click for TSB Information
13 21/08/2026 08:56:59 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000082F FFFF0005 10000100 2157 0036 378C 1E44:2F)
Click for TSB Information
14 21/08/2026 08:56:59 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 0000082F FFFF0005 10000100 2157 0036 3788 1E44:24)
Click for TSB Information
15 21/08/2026 08:56:59 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 0000082F FFFF0005 10000100 2157 0036 3788 1E44:1A)
Click for TSB Information
16 10/02/2040 05:02:33 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 195776BD 140000E5 10010000 217B 003E 24D8 194D:37)
Click for TSB Information
17 10/02/2040 05:02:33 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 195776BD 14000005 10010000 217B 003E 24D7 194D:21)
Click for TSB Information
18 10/02/2040 05:02:32 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 195776BC 14000005 10010000 217B 003E 24D6 194E:20)
Click for TSB Information
19 10/02/2040 05:02:32 80000009 Low Hardware - AC In Detect - Unexpected Power Loss or Shutdown Failure
|-(OK 00000000 80000009 195776BC 14000005 10010000 217B 003E 24D6 194E:16)
Click for TSB Information
1A 06/02/2040 04:44:12 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 19522C70 150000E5 10010000 217B 003E 341E 1F64:16)
Click for TSB Information
1B 06/02/2040 04:44:12 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 19522C70 150000E5 10010000 217B 003E 341E 1F63:15)
Click for TSB Information
1C 06/02/2040 04:44:12 C0020303 Low APU Not Responding - Trying Init or Reboot - 3 - (User Submitted: System wont start Blue Light Flashes), Check Fuses F3501, F7501
|-(OK 00000000 C0020303 19522C70 15000005 10010000 217B 003E 341E 1F62:FF)
Click for TSB Information
The secondary error is 217B, which should correspond to "Dev WLAN BT RESET ASSERT NEGATE." Could this be caused by the Wi-Fi module?
Any tips on what to check?
