8 وائي فائي ڪالنگ جي غلطي کي درست ڪري ٿو ER01 غلط سرٽيفڪيٽ
Wi-Fi is a new and amazing technology that helps users make and receive calls over a wireless internet connection. Wi-Fi calling excludes the need to use a cellular network. Especially for smartphone users, this technology is a boon. It helps users operate the basic calling and texting functions of their smartphones from locations where cellular networks are hard to receive. However, amid so many perks of Wi-Fi calling, smartphone users can sometimes receive Wi-Fi calling error ER01 invalid certificate due to a number of reasons. If you are someone dealing with the same issue on your phone, then we have bought a perfect guide for you in which we will explain the error in detail, its causes, and multiple methods to fix error 01 invalid certificate. So, let us begin with our guide right away and move forward with resolving error 01.
How to Fix Wi-Fi Calling Error ER01 Invalid Certificate
Error ER01 on a smartphone indicates issues with connectivity and functionality with Wi-Fi calling feature. The error is usually encountered by organization workers who try to connect to other people over the company’s Wi-Fi network. This can be due to the IT department blocking employee activity on their company’s network. For the home Wi-Fi network, other reasons that can trigger the error include:
- Improper installment of your home Wi-Fi network.
- Disabled Wi-Fi calling feature.
- Outdated device software.
- Problems related to the Wi-Fi router.
- Problem with network settings of the smartphone.
There are some quick ways that can help you in fixing connectivity issues with Wi-Fi calling. Let us look at some authentic and troubleshooting methods below that will help you fix this error ER01 easily:
Method 1: Restart Router and Phone
The first measure to resolve error ER01 involves restarting your router or phone. Usually, the issue lies with the device or router that you use due to minor issues. These glitches can be resolved by simply restarting these devices. To restart your home router, you can follow the steps mentioned below:
1. ڳولهيو پاور بٽڻ at the back of your router and press it.
2. هاڻي ، ناڪاري جي بجلي ڪيبل of your router and wait till the power is off.
3. After some time مٽايو جي بجلي ڪيبل ۽ کولڻ جي router.
4. Let the connection ٻيهر قائم ڪرڻ ۽ ڪوشش ڪريو سائن ان ٿيڻ.
توهان جي ٻيهر شروع ڪرڻ لاء Android device, you can refer to our guide, How to Restart or Reboot Your Android Phone?
Method 2: Toggle Airplane Mode کليل ۽ بند
Another easy method to resolve Wi-Fi calling error ER01 invalid certificate is by turning on and off airplane mode. In most cases, the issue arises from the mobile network itself. In such a scenario, you can try resetting the cellular network which might help fix the said error. You can try turning on airplane mode on your device which will block the cellular network and stop your SIM card from working. Check the steps below to follow this method on your phone:
نوٽ: Steps in the doc are performed on Vivo 1920 Android phone.
1. Open your Android جوڙ ايپ.
2. لانچ شروع ڪريو ٻيا نيٽ ورڪ ۽ ڪنيڪشن ان ۾ اختيار.
3. هاڻي ، تي ٽڪڻ لاء اختيار هوائي جهازن جو رستو.
4. ڪجهه وقت کان پوء، toggle off Airplane mode.
The above steps will reset your cellular network and fix the Wi-Fi calling error as well.
پڻ پڙهو Android تي وائي فائي کي ڪيئن بند ڪجي خودڪار طريقي سان آن
Method 3: Use Working Wi-Fi Connection
If you still have not been able to fix Wi-Fi calling error invalid certificate then you must ensure that your Wi-Fi is enabled and working. On connecting to a good Wi-Fi network, you will be able to operate Wi-Fi calling with excellent cellular signals. To enable Wi-Fi on your device, follow the steps as instructed below:
1. On opening the جوڙ app of your device, tap on وائي فائي.
2. هاڻي ، تي ٽڪڻ وائي فائي بٽڻ
3. Tap on your preferred network from the دستياب نيٽ ورڪ فهرست
4. هاڻي، چيڪ ڪريو سگنل جي طاقت of your Wi-Fi network and browse the internet to ensure it is working fine.
Method 4: Enable Wi-Fi Calling
To ensure you can call and text over a Wi-Fi network on your device, you need to make sure Wi-Fi calling is enabled in settings. This will help you resolve error 01 invalid certificate that often comes up due to connectivity issues. To enable Wi-Fi calling, follow the steps mentioned below:
1. لانچ جوڙ of your Android phone and navigate to the ڳولها بار ان ۾.
2. قسم وائي فائي بلانگ سرچ بار ۾ ۽ پريس ڪريو شامل ڪريو.
3. ھاڻي، تي ٽيپ ڪريو وائي فائي بلانگ اختيار.
4. Finally, slide the ٽٻڻ جي طرف هلايو the Wi-Fi calling.
Method 5: Remove and Reinsert SIM Card
If you are unable to fix Wi-Fi calling error ER01 invalid certificate with the help of the above-given methods, you can try this simple workaround that involves removing and then reinserting the SIM card in your Android phone. Follow the steps below to place the SIM properly in your phone slot after removing it:
- هن ڏانهن وڃو سم ٽري on your Android phone and insert a pin in the hole to open the tray.
- هاڻي، take the SIM card out of the tray.
- اڳيون، رکو سم ڪارڊ ٺيڪ آ in the tray and push it back into the phone.
- آخر ۾، turn on your device and check if error ER01 has been resolved now.
پڻ پڙهو Fix WiFi Authentication Error on Android
طريقو 6: Android اپڊيٽ ڪريو
There can also be an issue with the software of your Android device due to which you are facing a Wi-Fi calling error invalid certificate. To rule out this possibility, you must update your Android device to the latest version. Refer to our guide on How to Manually Update Android To Latest Version to properly attempt this method.
طريقو 7: نيٽ ورڪ سيٽنگون ري سيٽ ڪريو
One of the last methods that you can opt for in order to resolve error ER01 is to reset network settings. This method will automatically reset network adapters on your device which turns out to be very beneficial in resolving errors related to connectivity. Now, refer to the steps below to reset network settings on Android device:
1. کليل جوڙ app and launch سسٽم جو انتظام توھانجي فون تي.
2. اڳيون، تي ٽيپ ڪريو بیک اپ ۽ ريٽيوٽ.
3. هاڻي ، تي ٽيپ ڪريو نيٽورڪ سيٽنگون ٻيهر ترتيب ڏيو in the next menu.
4. تي ڇڪ سيٽنگ سيٽ ڪريو اسڪرين تي.
5. هڪ دفعو ٿي ويو، reconnect to your Wi-Fi network and check if the error has been resolved.
پڻ پڙهو ونڊوز، macOS، iOS ۽ Android تي محفوظ ٿيل وائي فائي پاسورڊ ڪيئن ڏسجي
Method 8: Try Different Wi-Fi Network
The last method that can help you fix error 01 invalid certificate is to try a different Wi-Fi network altogether. In case none of the methods mentioned above has helped you in fixing the error, there is a high chance the problem lies with your Wi-Fi network. Therefore, to resolve it try connecting to some other Wi-Fi network and check if the Wi-Fi calling works or not. You can also try getting a new router if changing the network does not work.
وچين سوالن جا جواب
Q1. How can I enable Wi-Fi calling?
جواب. You can enable Wi-Fi calling from the سيٽنگون of your device. You can also refer to طريقو 4 to enable the feature on your Android phone.
Q2. Why is Wi-Fi calling feature not working on my phone?
جواب. If the Wi-Fi calling feature is not working on your phone, then it can be due to the setting being turned off. The error can also arise from an issue with your وائي فائي نيٽ ورڪ.
Q3. Why is Wi-Fi calling used?
جواب. Wi-Fi calling is used to make ڪال ۽ موڪليو متن from a smartphone over the انٽرنيٽ. This feature is extremely useful during no cellular network.
Q4. Is there any disadvantage of Wi-Fi calling?
جواب. There are some disadvantages of Wi-Fi calling like poor signal strength, poor voice call quality, ۽ ڪالون ڪيون ويون.
Q5. Which devices support the Wi-Fi calling feature?
جواب. Smartphones like Samsung Galaxy S10, Samsung Galaxy S20, Samsung Galaxy S21, and others support the Wi-Fi calling feature.
صلاح ڏني ته:
اسان کي اميد آهي ته اسان جي ڊاڪٽر تي Wi-Fi calling error ER01 invalid certificate was helpful and guided you well about the causes and different methods that can help you fix this issue. Do let us know about your thoughts, queries, or suggestions by leaving your valuable comments below.
