Failure to update zenfon zb570tl

[Sabernasiri]

Please tell us some basic information before asking for help:
Model Name:zb570tl asus_x018d
Firmware Version:WW-14.02.1809.70_20190708
Rooted or not:no
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):

How can I update this device? There is a problem with the antenna and the antenna is disabled and there is no signal and it is activated after device recovery.
Recovery by holding the volume and power button...
I think it should be updated to fix it, but I can't do it

[Jiaszzz_ASUS]

Hi Sabernasiri ,
The latesr firmware version of ZB570TL is WW-16.02.1905.435, please refer to the following link for how to update.
[Phone] How to update firmware on my phone? | Official Support | ASUS Global
Please be aware that you must apply incremental updates to your current version. It can not upgrade to the newest update from your current version.

[igramc1]

I think above mod answer will be useful to fix this signal issue

[ASUS_Bot]

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