[Solved] ZenFone 5Z The signal/network connectivity has dropped to H+ after firmware upgrade?

[atomicwaster]

Please tell us some basic information before asking for help:
Model Name: Zenfone 5z
Firmware Version: Build QKQ1.191008.001.WW_user_100.10.107.110 20201118 release-keys
Rooted or not: no
Frequency of Occurrence: frequent
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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So yesterday I got the new firmware update and download and installed automatically. I thought everything was good but when I went out and went on my mobile data I saw that I was not able to see my data go thru. I mean I saw the h+ and a full bar but no data was coming thru. I couldn't make calls or nothing and my mobile company said that I was still getting data. So is it because of the new update that now I am not able to get data thru?

[Christine_ASUS]

Hi atomicwaster
Thank you for your reply. Are you using two sim cards? Please try to insert your T-Mobile sim card in slot 1 to slot 2 and recheck SMMI test, initially diagnosing that it is a sim card+APN settings issue or a sim slot issue.
If T-Mobile sim card performs well in slot 2, please check your APNs settings with your slot2 sim carrier.

[adityapruthi200]

atomicwaster

https://zentalk.asus.com/en/discussion/comment/138877#Comment_138877

Ahhhh I see. I did those tests the modem and sim card test passed the last one didn't .

View post

Well this is normal, it has passed, just when you will sim 2 it will show a confirmed pass that's it.

[atomicwaster]

Christine_ASUS

Hi atomicwaster

Thank you for your reply. Please try to insert your T-Mobile sim card in slot 1 to slot 2 and recheck SMMI test, initially diagnosing that it is a sim card+APN settings issue or a sim slot issue.

If T-Mobile sim card performs well in slot 2, please check your APNs settings with your slot2 sim carrier.

View post

So I switched it to the second slot and did the test again the first two tests passed but when I tried the sim signal it showed this

Weird it is in but says it's not. But I sent to check my apn settings too and everything seems right

[adityapruthi200]

atomicwaster

https://zentalk.asus.com/en/discussion/comment/138929#Comment_138929

So I switched it to the second slot and did the test again the first two tests passed but when I tried the sim signal it showed this

Weird it is in but says it's not. But I sent to check my apn settings too and everything seems right

View post

You have to insert both sim cards to produce the test passed.
Your settings seem fine. Tried another sim in phone?

[atomicwaster · Accepted solution]

adityapruthi2001

https://zentalk.asus.com/en/discussion/comment/139109#Comment_139109

You have to insert both sim cards to produce the test passed.

Your settings seem fine. Tried another sim in phone?

View post

So I just got the sim. Put it in and yup it's working. The sim is from another carrier but everything seems to be working fine

It's probably a bad sim card the other one.