Error: ER05 "Invalid SIM card"

[1337]

Hello,

I put my fathers SIM card into a new phone and now it's giving me this error:

Error: ER05 "Invalid SIM card"

Important Notice

Your SIM card needs to be updated for Wi-Fi calling service compatibility.

The device is unlocked, it's the LG Stylo 4 model number LM-Q710MS and I've checked to see that it works with Public Mobile and it's compatible

Sometimes when callers call the phone it rings, sometimes it doesn't work at all, this is a Public mobile sim card issue, how do I fix it?

[Anonymous]

@1337 

and if try all this and is still not working, i suggest you to factory reset,

how visit Here link 

or Here link 

[Anonymous]

@1337 

can you try to reset network settings on an Android device

1. Open the Settings app on your Android.
2. Scroll to and tap either "General management" or "System," depending on what device you have.
3. Tap either "Reset" or "Reset options."
4. Tap the words "Reset network settings."

   or visit  Here link,

and go Changing APN Settings On Android device

click Here link,

Ensure you have the correct APN settings by visit Here link,

Select the brand and model of your phone, After doing so, you will be provided with the exact APNs required for your phone on our network.

[hairbag1 · Accepted solution]

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@1337 wrote:

it works in a different phone, but this phone is compatible with public mobile so it should work

and i turned off wifi calling, it still doesn't work, goes straight to voice mail, phone doesn't even ring

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Yea...it's not a PM sim issue if it works in a different phone.

Keep playing with settings to see if that's the cause of your vexation..

Edit...where did the phone come from ? Did you get it on eBay or some such source ? Make sure your phone isn't blacklisted or reported as stolen.

[Anonymous]

@1337 

are you sure your device is unlocked.

[1337]

it works in a different phone, but this phone is compatible with public mobile so it should work

and i turned off wifi calling, it still doesn't work, goes straight to voice mail, phone doesn't even ring

[Anonymous]

@1337 

first test your SIM card in another device, and is still the same issue,

Explain your issue to Contact Customer Support Agent by CS_Agent ,
they can solve your issue, they are nice Service Team they will help you 100%.

Here’s How To Contact Customer Support Agent by CS_Agent, and Submit a Ticket 

• Get help with your account the easy way by starting a conversation with our virtual assistant, SIMon. It’ll take you to relevant help articles, or if it’s something more urgent, it can help you submit a ticket to Customer Support Agent by CS_Agent,Click Here link,to get started.

• or you can send a private message to Customer Support Agent by CS_Agent, by Click Here link,
• You’ll need to be logged in to your Community account for the link to work.

• please include in your message,
  
• your account number, 
  
• your phone number,
• your account 4 digit pin,
• your Email address,

• Customer Support Agent by CS_Agent, will Response to your inbox by private message 
  Check your private message inbox (click on the envelope top right of your screen)

         Good Luck....

[og2]

Try resetting your network settings then restart the device.

Try contacting customer support agents

[hairbag1]

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@1337 wrote:

Hello,

I put my fathers SIM card into a new phone and now it's giving me this error:

Error: ER05 "Invalid SIM card"

Important Notice

Your SIM card needs to be updated for Wi-Fi calling service compatibility.

The device is unlocked, it's the LG Stylo 4 model number LM-Q710MS and I've checked to see that it works with Public Mobile and it's compatible

Sometimes when callers call the phone it rings, sometimes it doesn't work at all, this is a Public mobile sim card issue, how do I fix it?

---

PM doesn't offer wifi calling...yet. Try that sim in a different unlocked phone.