At a time when people use their tablets more than their personal
computers, the iPad has become a necessity. However, you have not many
things to do with your tablet if you do not have an internet connection.
In this case, the SIM card seems to be the right answer especially when
you are on the move.
Nevertheless, when No SIM installed error
appear on iPad or even iPhone; things might become pretty frustrating
for some, especially if you do not know the cause or the solution for
that particular problem.
When your iPad does not recognize the SIM card, there are multiple
causes for this issue. Here, I want to show you some possible situations
when the iPad no longer recognizes the SIM card, and some useful
solutions for you to try them out. Therefore, when your iPad displays
the No SIM installed error, it might happen due to a misplacement of the
SIM card inside the device, a damaged SIM card, a faulty SIM card
reader, and in some cases, an improper jailbreak process.
No SIM Installed Error Fix
1. Damaged SIM card or SIM card Reader
In case you own a pretty damaged SIM card, the card might stop
functioning any time for one reason or another. You need to check to see
if the SIM Card is looking well, insert it in another device to check
its validity. If the card does not work on any other device, the SIM
card is the problem, and you need to replace it. If the problem still
persists, you should check the following alternative solutions.
In case of a damaged SIM card reader, the reader might not detect the
SIM card and the iPad will display the NO SIM installed error. In this
case, the only solution is to replace the SIM card reader.
2. Unsupported SIM card
Sometimes, the respective device does not support the SIM card inserted.
There are some SIM cards designed for some device while other cards
support other devices. As you know, when you purchase an Apple product
with a two-year contract, you sign the contract with AT&T, Verizon
or T-Mobile. When using another SIM card, the device displays the NO SIM
card installed message. For an invalid SIM card, the iPad has to be
unlocked via IMEI unlock. The method is cheap and permanent.
3. Weak Signal Problem
Apparently, for some users, the NO SIM installed error appears due to a
weak signal. For this, solution is pretty easy. Turn on the Airplane Mode for 20 seconds and then turn it off. The next step is to reset Network Settings. For this, you need to go to General, Settings, Reset and Reset Network Options. Remove the SIM card for a while and then place it back. This should fix the weak signal problem.
4. Downgrading Error
For those of you who accidentally upgrade the iOS version to a different
firmware, which it cannot be jailbroken, the upgrade might become a
terrible thing. In this case, the only solution is to downgrade to an
earlier iOS version and to a lower baseband. Some users suggest that the
process of downgrading might become a little bit uncomfortable when the
device is no longer able to read the SIM Card information. In this
case, a restore, and an IMEI unlock represents the solution.
However, for this, you need iTunes 11, IPSW saved for your iPad and a supported SIM card.
Here is what you need to do:
tep 1: Download and install iTunes on your computer.
Step 2: Connect your device to your computer using the USB cable.
Step 3: Press and hold Shift and click Restore.
Step 4: Select the iOS 6.1.3 IPSW for your iPad and click on OK.
Step 5: After the restore process is complete, the iPad will recognize the SIM card.
If you encounter the NO SIM installed error on your iPad, you should try
out these solutions to spot the problem and to fix it. Take one by one
until the problem is solved. When a solution does not offer any result,
try another one. Keep in mind that the NO SIM installed Error is fixable
and in an easy way.
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