iPhone 4 and bug fix "No SIM installed"
A week ago, I finally bought a new iPhone 4.
But I wasn’t able to use it normally right away. As it is known, it uses microsim sim cards, and I had to use scissors to make something similar to microsim from a regular sim card. However, the self-made simka in the new iPhone did not work as I hoped. At first, she didn’t want to be at all, but after some dopilivany still found that after 5 minutes the IPhone again lost it. Having decided that it was a matter of crooked hands, I bought a new SIM card and cut it off very carefully. After installing it into the phone, it was immediately found, but after a couple of minutes of use, I again saw the message “no SIM card is installed”. Having decided that a SIM is required for work, which was made with some extreme accuracy, I made regular attempts to use the new gadget only after purchasing the original microsim card from MTS.
However, on this adventure did not end, and after a couple of minutes, I again saw "not installed SIM-card."
Not fun. And I’ve googled to shtatovskie and English forums, where crowds of people complained about the same problem, and AT & T and Apple couldn’t help people at all, offered to stick-poke Simka, it helped for a while, but then the phone again lost the map. The only solution was to replace the phone, though a couple of checkboxes were caught, who also had a new phone with the same defect. So the solution to the problem had to be found independently. And in the end I found it!
')
As it turned out, the reason for this glitch lies in the design of the mechanism for ejecting the SIM card tray.
In the photo below you can see that the ejection of the tray occurs due to the fact that the foot presses on the tray.
She presses the protruding part of the tray, which can be seen below.
The problem is that this "foot" does not hold up well enough, it can dangle a little, touching in this case the contacts on the SIM card and shorting them.
After the reason became clear to me, I figured out how to fix it.
We need a knife and something sticky. I took a sticker that has a thick enough adhesive layer.
Cut off a small piece and glue it to the ledge on the SIM card tray. Now the "foot" slightly stick to this protrusion and will not hang shorting the contacts of the SIM card
I tried this solution last night, the phone never lost a SIM card within 24 hours. I hope that this will help other iPhone 4 owners who have already encountered this problem.
However, please note that you do all the experiments at your own peril and risk, and you yourself are responsible for the broken phone.
But I wasn’t able to use it normally right away. As it is known, it uses microsim sim cards, and I had to use scissors to make something similar to microsim from a regular sim card. However, the self-made simka in the new iPhone did not work as I hoped. At first, she didn’t want to be at all, but after some dopilivany still found that after 5 minutes the IPhone again lost it. Having decided that it was a matter of crooked hands, I bought a new SIM card and cut it off very carefully. After installing it into the phone, it was immediately found, but after a couple of minutes of use, I again saw the message “no SIM card is installed”. Having decided that a SIM is required for work, which was made with some extreme accuracy, I made regular attempts to use the new gadget only after purchasing the original microsim card from MTS.
However, on this adventure did not end, and after a couple of minutes, I again saw "not installed SIM-card."
Not fun. And I’ve googled to shtatovskie and English forums, where crowds of people complained about the same problem, and AT & T and Apple couldn’t help people at all, offered to stick-poke Simka, it helped for a while, but then the phone again lost the map. The only solution was to replace the phone, though a couple of checkboxes were caught, who also had a new phone with the same defect. So the solution to the problem had to be found independently. And in the end I found it!
')
As it turned out, the reason for this glitch lies in the design of the mechanism for ejecting the SIM card tray.
In the photo below you can see that the ejection of the tray occurs due to the fact that the foot presses on the tray.
She presses the protruding part of the tray, which can be seen below.
The problem is that this "foot" does not hold up well enough, it can dangle a little, touching in this case the contacts on the SIM card and shorting them.
After the reason became clear to me, I figured out how to fix it.
We need a knife and something sticky. I took a sticker that has a thick enough adhesive layer.
Cut off a small piece and glue it to the ledge on the SIM card tray. Now the "foot" slightly stick to this protrusion and will not hang shorting the contacts of the SIM card
I tried this solution last night, the phone never lost a SIM card within 24 hours. I hope that this will help other iPhone 4 owners who have already encountered this problem.
However, please note that you do all the experiments at your own peril and risk, and you yourself are responsible for the broken phone.
Source: https://habr.com/ru/post/98732/
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