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Introduction

When you power up the router, after 4 seconds the power light changes from green to yellow.

Sometimes this is related to a corrupted firmware, but other times is related to a faulty power supply.

In this guide I'll show you how to diagnose this issue and fix by replacing one single component from the power supply.

  1. Insert your X-Acto knife on the groove in order to remove part of the glue that is holding the two parts.
    • Insert your X-Acto knife on the groove in order to remove part of the glue that is holding the two parts.

  2. Using your prying tools or a butter knife, slide it in and then bend it until you ear it pop.
    • Using your prying tools or a butter knife, slide it in and then bend it until you ear it pop.

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  4. On the board of the power supply you'll probably see the faulty capacitor. Is the one on the right that has swollen.
    • On the board of the power supply you'll probably see the faulty capacitor. Is the one on the right that has swollen.

  5. The capacitor has a right position. Mind the markings on the capacitor and the board, they must match.
    • The capacitor has a right position. Mind the markings on the capacitor and the board, they must match.

    • I used a 1000uF 25V that I've removed from an old CRT monitor, but the recommended one is a 1000uF 16V or 1000uF 10V (like the original).

    • Using the soldering iron, desolder the faulty capacitor and solder a new one.

  6. Reassemble the power supply and your router should be back and running fine :)
    • Reassemble the power supply and your router should be back and running fine :)

Conclusion

To reassemble your device, follow these instructions in reverse order.

Pedro Semeano

Membre depuis le 25/05/2015

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