While adjusting a servo's Travel Adjust value in the Servo Setup screen, if the clear button is depressed, both the value and the channel's reversing will reset to their default values of 100% and normal.
This reset could cause an unsafe condition if unnoticed, particularly if the channel has been reversed on the throttle.
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Recently, the Horizon Hobby Service Center has received a small number of reports from customers claiming un-commanded servo movements and loss of RF link during the activation of the vibrator motor in some DX8's from the initial shipment.
Horizon requests that all DX8 customers with the Product ID (PID) HS008X or HS009X found in the battery compartment carefully check their radios to determine if their transmitter has this issue prior to flying.
Transmitters with a PID other than HS008X or HS009X are not affected by this bulletin.
If you have a DX8 with the affected PID, please perform the following test.
Should you find that your transmitter is affected by this issue, please contact your nearest Spektrum authorized service center to arrange for a free upgrade to your DX8 performed by a Horizon Hobby authorized Technician.