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| {{Repair Guide
| | CMOS battery of HP Elitebook 850 G5 |
| |Device=PlayStation 5
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| |Affects parts=Motherboard
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| |Needs equipment=Soldering Iron, Hot Air Station, Microscope
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| |Type=Soldering
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| |Difficulty=2. Medium
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| }}
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| {{stub}}
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| == Problem description ==
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| <!--
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| Provide a concise description of the issue here. Be as specific as possible to help readers quickly determine whether or not this is the exact problem they are facing.
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| When ac power is plugged the console produces 3 fast beeps and the console does not turn on.
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| [[File:Placeholder image.jpg|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]]
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| == Symptoms ==
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| <!--
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| Detail all measurable or observable symptoms in this section.
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| * When ac power is plugged the console produces 3 fast beeps
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| == Solution ==
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| <!--
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| If the issue has a single, specific solution, provide it in this section and delete the sub-headers below. Otherwise, if there are multiple potential causes for the problem, outline the process of identifying the root cause and offer corresponding solutions below.
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| This issue is related to the NOR (BIOS) IC.
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| The first thing we can try is using UART, send the command "errlog clear" to clear the error code database.
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| Follow this guide on how to connect to UART [[PlayStation 5 Fault Finding Using UART]] ,then in console service tool, in select operation type select clear error codes.
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| Why this works? Because sometimes the DBI section of the NOR gets full.
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| If the first option doesn't work we will need to remove the BIOS IC from the motherboard and using a donor BIOS file.
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| The BIOS chip (25Q16JVNIM) is located next to the southbridge.
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| ==== Step 1: Remove the BIOS Chip ====
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| * Locate the BIOS chip (25Q16JVNIM) next to the southbridge on the PS5 motherboard. Use a hot air station to carefully desolder the chip. Exercise caution and avoid excessive heat, as it can damage the chip.
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| ==== Step 2: Connect and Read the BIOS Chip ====
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| * Solder the bios chip to the SOP8 adapter.
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| * Connect the chip to the programmer.
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| * Connect your programmer to the computer.
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| * Read the chip and save a copy of the bios file on your computer it will create a .bin file.
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| ==== Step 3: Fixing your BIOS Dump ====
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| Using a free tool made by Dony this process is really simple, download [https://github.com/apewalkers/PS5-NOR-EDITOR/tree/main PS5 NOR EDITOR]
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| After downloading the tool, open it and click on pre-configured and select your board type.
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| After that, click on the browse button on the harvest section and find your dump a small pop-up window will show up and ask you what options you want to harvest, select all options and click on OK.
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| [[File:Example of a Sucess Harvest.png|center|thumb|Example of a Sucess Harvest]]
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| After that, save your file.
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| ==== Step 4: Write the Modified BIOS File ====
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| Load the modified BIOS file into the programmer software. Write the new BIOS data to the chip using the EEPROM Reader/Writer.
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| ==== Step 5: Reattach the BIOS Chipeditedit source ====
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| Solder the BIOS chip back to the motherboard, ensuring it is in the same orientation as before. Reassemble the console. You may leave the disc drive disconnected if desired.
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| == Final Testing ==
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| Online Connectivity: Connect the PS5 to the internet with Wi-Fi or an Ethernet cable. Go to Settings > Network > Test Internet Connection to confirm a reliable connection.
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| PlayStation Store Access: Open the PlayStation Store, sign in to your PlayStation Network account, and ensure you can browse, download games, or access apps without issues.
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| Game Launch: Download a small free-to-play title or demo from the PlayStation Store, install it, and check that it launches and runs without problems.
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