The newly available THL 100s is a pretty impressive octa-core smartphone. There have been complaints about the wi-fi signal dropping even very close to the router. There is a simple fix to this, flip the rear cover around until it connects with the rear of the phone, this will boost your signal back up to normal standards. The reason for this is that inside the rear cover is an antenna which means that the signal is easily lost if the cover is not held against the phone. An easy enough fix to a problem that could easily frustrate even the most patient user if they haven’t been informed of what the problem is. Well, now you know, go enjoy all the benefits of the new phone without at least some of the confusion.