So band 1, 3, at 40 yung pinakamalakas na combination dito sa samin after trial and error (using Huawei manager v.8). Kaso minsan si B818 nagsiswitch to band 40 which is walang internet (o kung meron man, less than 1 mbps lang)
At kung si band 1 at 3 lang yung i-lolock, parang kalahati lng yung...