Hi everyone. Yesterday I received the 9.0 update and installed it on the 8, all quick and without any problems. When the phone started I found out that the gsm signal is lower than it was before! The cell measurer app also shows -100dbm at the same place where it was -70 before installation! Moreover, the signal has become less stable even at open space, as far as I can see on the indicator lines... What's that, developers?? Does anyone face the same? What should I do, please, advise