GBPUSD broke above the top trend line of the price channel on its 4-hour chart, suggesting that the downside movement from 1.4144 had completed at 1.3711 already. Further rally would likely be seen and next target would be at 1.4000 area. Support levels are at 1.3845 and 1.3810, only break below these levels could trigger another fall towards 1.3500.