I've had issues with 'cheaper' receivers. My 2.4 ghz xp went without warning, when you switched it on the whole car seemed dead. The esc made a strange noise and the servo was clicking and buzzing. I thought it was the esc, but I strapped in a spare receiver and it turned on straight away (I was praying it wasn't the esc as I'm on a tight budget!). So yeah, budget rx's pack up quite quickly, so it should be that.
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