After rejection to move below the bullish channel on Thursday, GBPUSD had bullish momentum on Friday, as you can see in my h4 chart below. This fact should keep the bullish scenario intact and the bias is more to the upside now re-testing 1.6842 in nearest term. Break above that area should continue the bullish scenario re-testing 1.7042 area. Immediate support at 1.6692. Break below that area should lead us into no trading zone as price might attempt to test the lower line of the bullish channel once again.