How to fix iphone sim card no service

Many times, people who have been using the iPhone 11 series or 12 series, there has been a problem related to the Sim and Internet network despite having inserted the sim properly. The iPhone showing no service / or continuing to search for signals may be a big problem related to the phone’s modem firmware. But you cannot be sure because this problem persists in a variety of ways, with a variety of symptoms, and not always because of some IC issues on the main board. Thus, it is very important to broadly explain the iPhone no sim issue, the iPhone no service with sim card issue, and the other problems related to no service on iPhone 11, 12, and even the 13 series.

And that’s exactly what we are going to do for you in this blog. Stay tuned and make sure you’re addressing your problem with the right expert. Here you can find the top assistance for any such issue and other issues related to your iPhones.

Symptom 1 – Sim No Service Issue (mostly seen in the iPhone 11 and 12 series)

Why does my iPhone say no service despite having the sim inserted properly into the sim tray? For this common, yet major, iPhone issue you will have to understand the components that might lead to this iPhone No Service problem.

Before you jump to conclusions you must make sure of a couple of things.

1. You are in a good network zone
2. Airplane mode turned off

You can check about your network condition by going to Settings > Mobile Data > Set Up Mobile Service

Troubleshooting an iPhone Having No Service Error

Before trying outdoors, you can troubleshoot this error and the other problems associated with the iPhone’s no service with SIM card issue. You can start by checking the basic calling and texting functions. If these don’t work it is fair to say your iPhone is of no good use to you without these basics.

• Restart – yes, first and foremost. Do it once and check if the problem persists. Press and hold both the Side and Volume Up/Down buttons for a few seconds. Turn on after 30 seconds.
• Use Airplane Mode – minor network problems or inability to find the sim can be treated by using the Airplane mode. Many iPhone users who encountered relevant network issues in the past have found help this way. You too can try.
• Manually Choose Network – check the network provider’s name under network settings.
• Update your iOS Version – the latest iOS version usually brings along fixes to several bugs, which were found or located in the last update. Thus, it is important to stay updated and to keep your iOS version eligible for all the new security and other updates.
• Reset Network Settings – sometimes erratic network settings can overpower the ability of your device to stay connected to the internet using the network provider. Clear and reset network settings to start afresh.

Symptom 2 – Searching for Signal/Sim Unsuccessfully

The other major issue – seen in iPhone 12 Pro Max and iPhone 13 Pro and iPhone 13 Pro Max models is the inability of the device to search for a sim or network and being stuck in that loop. Usually any inability/delay in searching for networks will prompt a ‘No Sim Inserted’ error but in this case the search for the networks is continuous and you will see a wave failing to locate any networks.

So what do you do in one such case? Of course, you can try the above-mentioned troubleshooting options but if not, we have mentioned the perfect diagnosis towards the end of the blog. Make sure to stay tuned and have a look at how the experts attend to your devices facing this issue.

Symptom 3 – No or Low Networks Despite Showing Sim and Internet Signals

But before we can jump to the different diagnostic processes, we must learn about another symptom associated with the iPhone No Service with SIM card issue.

This iPhone No Service issue is the scenario where your iPhone can read your SIM and network settings yet cannot perform to its full capacity. This means you can see the signal bars on the top but still cannot utilise the speed of your internet the way it is supposed to be. This issue is by far the most complex scenario that repair experts face but this too has a logical explanation to it.

Modem Firmware Not Available’ Why Is This Issue Common In iPhone 11, 12, and 13 Series?

Now that you understand the different kinds of symptoms associated with the iPhone No Service with SIM card issue, we can proceed to the technical aspects that become the cause of this problem in the first place. The Baseband IC has to do a lot with it.

Baseband ICs are irreplaceable compared to a BB PMU IC (for proper power supply)  or WTR  Network IC (for the connection between the CPU and Baseband IC). The reason is simple – baseband ICs have encrypted data including the device’s IMEI number. Thus it cannot be replaced and any damage to it can only be helped in certain cases.

But most iPhone No Service or iPhone No Service with SIM Card issues occur because of these above-mentioned parts facing a damage or technical error. These can be fixed by contacting the top city-wide experts around you. You can reach them via call or WhatsApp and book your appointment today.

Before we go on to check the various types of ICs and whether any of those suffered any damage, it is ideal to first have a look at the Modem Firmware for data loss. These can be caused due to your device falling down or the WTR IC suffering any such physical damage.

Liquid Damage – the modem firmware can lose data due to a liquid damage due to an unforeseeable circumstance of flow of liquid internally.

Component Loose / Damage – the modem firmware can also suffer component damage due to any physical extremity or damage. This may also include loose parts, damaged ICs, and cracked ICs.

Damage To BB PMU IC, WTR Network Amp IC, or Baseband IC – ICs or integrated circuits help your device combine the efficiency of different parts by working as an amplifier, oscillator, timer, counter, logic gate, computer memory, microcontroller, or a microprocessor.

For any physical damage or technical fault in your iPhone 11, 12, or 13 or other variants, you can call the experts in your city today. Free pick-up and drop service wherever you are. Have a consultation call to get a free quote!