topic Re: Phone not recognizing Sim Card after update. in Get Support

Phone not recognizing Sim Card after update.

CosmicWarrior — Wed, 05 Jan 2022 07:40:42 GMT

I have an Asus Zenfone Max Plus. I bought it unlocked, back in September 2018 and had a Public Mobile sim card in it since. It's a two sim card slot smartphone, but my sim card has been working perfectly fine until now.

On December 1, 2018, I updated my phone's software (it runs on Android) but for some reason, my phone cannot recognize the sim card at all. Every time I tried inserting it in, it keeps reading unavailable, both on slot 1 and 2. I bought a new PM sim card, but it's the same story -- read unavailable.

However, things get weirder. It doesn't read Public Mobile sim cards, but it reads other sim cards from different companies like Koodo, Telus, Freedom, Rogers, etc. It's not a hardware issue, it's something else; Public Mobile related.

Can you help me solve this issue? Please and thank you.

Re: Phone not recognizing Sim Card after update.

popping — Sun, 02 Dec 2018 21:32:25 GMT

@CosmicWarrior wrote:
I have an Asus Zenfone Max Plus. I bought it unlocked, back in September 2018 and had a Public Mobile sim card in it since. It's a two sim card slot smartphone, but my sim card has been working perfectly fine until now.
On December 1, 2018, I updated my phone's software (it runs on Android) but for some reason, my phone cannot recognize the sim card at all. Every time I tried inserting it in, it keeps reading unavailable, both on slot 1 and 2. I bought a new PM sim card, but it's the same story -- read unavailable.
However, things get weirder. It doesn't read Public Mobile sim cards, but it reads other sim cards from different companies like Koodo, Telus, Freedom, Rogers, etc. It's not a hardware issue, it's something else; Public Mobile related.
Can you help me solve this issue? Please and thank you.

Someone reported similar problem recently on Zenfone update to Oreo. I will serach and update this thread.

For the time being, network reset your phone and restart your phone.

Re: Phone not recognizing Sim Card after update.

CosmicWarrior — Sun, 02 Dec 2018 21:34:30 GMT

I already did a network reset and restarted my phone. Still nothing.

Re: Phone not recognizing Sim Card after update.

Anonymous — Sun, 02 Dec 2018 21:34:49 GMT

@CosmicWarrior

Android 8.1 strikes again. Dang.

Re: Phone not recognizing Sim Card after update.

popping — Sun, 02 Dec 2018 21:40:20 GMT

Read the follwoing thread on Asus Zenfone Max Plus to android 8.1

https://productioncommunity.publicmobile.ca/t5/Phones-Hardware/Connectivity-issues-after-upgrade-to-android-8-1/m-p/297621

Try your SIM card on your friends phone to determine your PM SIM is still working. Then, concentrate your effort to find a solution to the hardware/firmware problem.

Re: Phone not recognizing Sim Card after update.

CosmicWarrior — Sun, 02 Dec 2018 21:42:44 GMT

I already did insert my sim card into another's phone. It was working just fine.

Re: Phone not recognizing Sim Card after update.

MoreYummy — Sun, 02 Dec 2018 23:37:50 GMT

Only resort is to reset the phone to factory status.

Since the sim works on other phone, it is the software update messaed it up.

Re: Phone not recognizing Sim Card after update.

CosmicWarrior — Sun, 02 Dec 2018 23:40:31 GMT

I EVEN factory reset my phone too. The problem was not solved.

Re: Phone not recognizing Sim Card after update.

popping — Mon, 03 Dec 2018 03:17:27 GMT

Access Safe Mode by long pressing power key > tapping and holding Power Off > tapping OK. If your phone works well in Safe Mode, there may be some 3rd apps that cause malfunction.
Please reboot your phone and check again if it works well

Re: Phone not recognizing Sim Card after update.

popping — Mon, 03 Dec 2018 04:15:31 GMT

@popping wrote:
Access Safe Mode by long pressing power key > tapping and holding Power Off > tapping OK. If your phone works well in Safe Mode, there may be some 3rd apps that cause malfunction.
Please reboot your phone and check again if it works well

Safe Mode does not start any installed apps. To find the problem app, start your installed apps one at a time. Uninstall the problem app and restart your phone normally.

Disclaimer: I have not done anything with Safe Mode. Do it on your own risk.

Re: Phone not recognizing Sim Card after update.

Anonymous — Mon, 03 Dec 2018 04:17:05 GMT

@popping wrote:
@popping wrote:
Access Safe Mode by long pressing power key > tapping and holding Power Off > tapping OK. If your phone works well in Safe Mode, there may be some 3rd apps that cause malfunction.
Please reboot your phone and check again if it works well
Safe Mode does not start any installed apps. To find the problem app, start your installed app one at a time.

Disclaimer: I have not done anything with Safe Mode. Do it on your own risk.

Nice find though popping. Seems to be a similar idea to Windows.

Edit: We need a brave soul to try it out and go Eureka! It's this app!

Re: Phone not recognizing Sim Card after update.

rkcb — Wed, 27 Mar 2019 15:46:39 GMT

@CosmicWarrior wrote:
I have an Asus Zenfone Max Plus. I bought it unlocked, back in September 2018 and had a Public Mobile sim card in it since. It's a two sim card slot smartphone, but my sim card has been working perfectly fine until now.
On December 1, 2018, I updated my phone's software (it runs on Android) but for some reason, my phone cannot recognize the sim card at all. Every time I tried inserting it in, it keeps reading unavailable, both on slot 1 and 2. I bought a new PM sim card, but it's the same story -- read unavailable.
However, things get weirder. It doesn't read Public Mobile sim cards, but it reads other sim cards from different companies like Koodo, Telus, Freedom, Rogers, etc. It's not a hardware issue, it's something else; Public Mobile related.
Can you help me solve this issue? Please and thank you.

Has there been any progress in resolving this issue?