4-hour chart of $BTC shows a breakout of the bullish channel support (blue channel) on the highest day in a high volatility candle.

By doubling the same channel downwards (orange channel) we realize that today it reached an oversold region right in the channel's support area and is starting to show a new upward movement.

We have to pay attention to the volume of these recovery candles. The current one (last on the chart) is indicating that it will present a volume greater than the average volume in the last 4 candles.