Fixing Epson Error 202620 on ET-M2170: How to Identify the Correct WiFi Board (Pin Count, Orientation, and Model Match)

Question

I watched your YouTube video about replacing a WiFi card (wireless board) to fix error 202620 (https://www.youtube.com/watch?v=AOZWZ1Ny3Lw). I'm getting the same 202620 error, but my printer is an Epson ET-M2170.

Does the ET-M2170 use the same WiFi board as the one in your video? If not, do you know which WiFi board I should order so I can open the printer and replace it the same day?

Answer

Now, regarding error 202620 and the Epson ET-M2170: the short version is that the printer may look similar to what's shown in the video, but you should not assume the WiFi board is the same. Epson often uses different WiFi boards across models (and even within the same model family), and the boards can differ by:

• Board model number (must match)

• Connector pin count (commonly 4-pin vs 5-pin)

• Connector orientation (vertical vs horizontal)

• Bracket shape / mounting alignment (small differences that prevent fitting)

So the safest "same-day repair" plan is to identify your exact WiFi board first, then order the exact match.

How to Identify the Correct WiFi Board for the ET-M2170 (Before Ordering)

1) Confirm the Connector Type (Pin Count + Orientation)

Before you shop, inspect the connector on your existing WiFi board and note:

• Pin count: is it a 4-pin or 5-pin connector?

• Orientation: is the connector vertical (standing up) or horizontal (side-facing)?

This matters because even if two boards look nearly identical, a 4-pin board will not substitute for a 5-pin board, and a vertical connector board often cannot be swapped with a horizontal connector version without physical mismatch.

If you're trying to complete the repair the same day, this step is critical-connector mismatch is one of the most common reasons people order the wrong replacement.

2) Find the WiFi Board Model Number Printed on the Board (Most Important)

Next, locate the exact model number printed on your WiFi board. This is the "non-negotiable" identifier.

Tips:

• Use your phone camera and zoom in-the print is often tiny.

• Write the number down exactly as shown.

• Every character must match.

Example of why this matters:

• A board labeled J26H006 is not compatible with J26H005, even though they look similar.

• The main model code must match perfectly.

Also, don't get distracted by other markings (PCB codes, date stamps, lot numbers). Those usually don't matter for compatibility. The key is the main WiFi board model number.

3) Why Error 202620 Often Points to the WiFi Board (and Why Matching Matters)

Error 202620 frequently appears when the printer can't initialize the wireless module properly. The causes often include:

• Failed WiFi board electronics (chipset failure, power regulation failure)

• Connector/cable issues (loose, oxidized, damaged)

• Board mismatch after replacement (wrong model, wrong connector, wrong region variant)

• Firmware handshake problems (less common, but possible after updates)

Even when the symptom is "WiFi not working," the fix is only successful if the replacement board matches both the hardware interface and the expected board ID. That's why the exact model number + connector type is the correct way to confirm compatibility-more reliable than the printer model alone.

4) Search on Our Website Once You Have Those Two Details

Once you confirm:

1. Your WiFi board model number, and

2. Your connector type (4-pin vs 5-pin, vertical vs horizontal),

then search our site and match the listing to what you found.

You can start at BCH Technologies (https://bchtechnologies.com/), and use the search bar with terms like:

• "WiFi board 5-pin vertical"

• "J26H006 WiFi board"

• "ET-M2170 WiFi board" (then verify the photos/model code still match your board)

If your board uses a 5-pin vertical connector, search that first, then confirm the printed model number matches your original board exactly.

Practical Same-Day Replacement Tips (So You Don't Lose Time Mid-Repair)

• Take a clear photo of the board label before removing it.

• Photograph the connector area so you can confirm pin count and orientation later.

• Handle ribbon/cable connectors gently-many failures come from damaged clips, not the board itself.

• If the printer has been moved or bumped, reseating the connector once can be worth trying-but if the board is failing, reseating won't last.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. Because of that, we're not able to provide remote troubleshooting, specific step-by-step repair instructions, or direct support for printer repairs. We do offer an in-person evaluation and repair service through our local diagnostic facility-BCH Technologies Printer Repair Service (https://bchtechnologies.com/printer-repair-service). Due to high demand, we operate on a first-come, first-served basis, and it may take a few weeks before we're able to accept your printer for drop-off. Our services are structured to repair either the whole printer or specific parts, with clear instructions on how to proceed. That said, we understand our rates may not be the most economical option. So we strongly recommend self-help through online research when possible. You can start with YouTube or visit our BCH Technologies YouTube channel homepage (https://youtube.com/@bchtechnologies). Use the search icon next to "About" on the right-hand side of the menu to find videos by topic. I receive dozens of questions every day asking if there's a video for a specific issue, and after creating videos for the past nine years, it's difficult to remember every single one-so YouTube's search function is the fastest and most efficient approach. Plus, YouTube may recommend other helpful videos from different channels that apply to your exact model.

Thanks again for reaching out and for watching the video. I truly appreciate your support, and I hope the steps above help you identify the exact WiFi board so your ET-M2170 replacement goes smoothly the first time.