Sim Card 4g issue - Last Firmware

[cristiano_rbarb]

Model: ZE620KL
RAM: 4G
Firmware/APP Version: LAST 1905.100
Frequency of Occurrence: always
Rooted: No
APP Name:

Hi, I'm from Brazil and I'm having problems with the 4G signal from the VIVO operator. when the sim card is inserted in slot 2, the 4G works normally when the device is switched on, but if I switch the sim card to slot 1, the 4G does not work when the device is turned on. It is necessary to turn airplane mode on and off for 4G to work. This only happens with the VIVO operator chip. Please solve this kind of thing, that annoys me. This will surely be my last ASUS

[cristiano_rbarb]

Last edited by cristiano.rbarbosa on 2019/6/12 05:39 Yes . as I described above, the problem happens specifically with the sim card of the VIVO carrier. I thought you understood the problem. It is not a defect in the device, it started to occur after the last update. Thanks for listening . Asus never again

[ServiceE_Asus]

Hi cristiano.rbarbosa, Good day. There's a new firmware is available these days, I would suggest can update the firmware to the latest WW-16.0615.1905.102 for a check. (settings> system > check update) If this problem still appears, please kindly let me know. Thank you.

[sma_valerie]

Emilee_ASUS posted on 2019/6/20 01:15 Hi cristiano.rbarbosa, Good day.

Hi. I have the same issue. And it there's also a problem with WiFi connection, it's connected to the same network with my other devices but I can't get internet access on my zenfone 5 unit. I'm running this current system on my unit and I'm still experiencing the same that I had with other updates as well. It was much better before this year's system updates. I haven't encountered these before.

[ServiceE_Asus]

Last edited by Emilee_ASUS on 2019/7/4 15:41 Hello sma.valerie, Good day. Is your firmware currently on the WW-16.0615.1905.102? If yes. I would suggest you try to rest the network settings. ( settings> system> reset options>reset WiFi, mobile & Bluetooth) Could you also help me to use another SIM card for a check? Does this problem appear under safe mode? In safe mode, only the factory pre-installed applications will be loaded. For instructions, please refer to the link below: http://www.asus.com/zentalk/foru ... ghlight=safe%2Bmode Thank you.

[ServiceE_Asus]

Hello sma.valerie, Thanks for your information. I've replied to you on another thread as below. Thank you. :) https://www.asus.com/zentalk/ww/thread-276490-1-1.html