The service center could not figure out the device and the cause of the software failure, they referred to a drop of water in the SIM card slot. The SIM card is working at the same time, after changing the settings, the CDMA connection is working. IDK is easier to say - you have a drop of water, that's it, the phone doesn't work)))
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Бранислав С.
Level 4 Local Expert
August 5, 2019
Monopolists use old technologies, 4g supports about 15 phone models.