Troubleshooting; Read This First - Yamaha TW-E7A User Manual

Troubleshooting > Read this first

Troubleshooting

Read this first

If this product does not operate normally while you are using it, first check the following.
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Place both earphones back into the charging case and wait for at least 10 seconds, after which you
can first take out earphone (R) and then earphone (L).
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Make sure that this product have been sufficiently charged.
"Charging the earphones" (p.14)
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"Charging the charging case" (p.16)
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Update the firmware of this product to the latest version.
"Updating the firmware" (p.43)
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Also, check the following.
"No sound can be heard" (p.45)
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"Sound can only be heard from one earphone" (p.46)
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"Power will not turn on" (p.47)
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"The product cannot be charged" (p.48)
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"Cannot connect to a Bluetooth device" (p.49)
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"The product does not operate or play back" (p.50)
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"The sound is distorted, noisy or choppy" (p.51)
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"Restoring this product to factory defaults (Initialize / Reset)" (p.52)
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"Problem Still Not Resolved (Customer Support)" (p.55)
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