starLED
Member
I have two exactly the same phones NOA Vivo 4G.
Phone has an option to turn on/off 4G internet.
On one phone 4G is working, but on the second one when I turn on 4G internet stops working.
It shows H+ signal (on other shows 4G) and upload is working (up arrow is blinking) but download doesn't.
I have disassembled the phone to check if antenna is bad, but I don't see any issues.
Is this a hardware or software issue?
Maybe I can replace antenna.
Phone has an option to turn on/off 4G internet.
On one phone 4G is working, but on the second one when I turn on 4G internet stops working.
It shows H+ signal (on other shows 4G) and upload is working (up arrow is blinking) but download doesn't.
I have disassembled the phone to check if antenna is bad, but I don't see any issues.
Is this a hardware or software issue?
Maybe I can replace antenna.