Database Develop

Putting in the SIM card on the fly

Just got my Kaiser, lovely boxing, lovely phone but I've had a little unpleasant surprise - I've entered SIM card while phone was already on. In result Kaiser have just crashed - I mean switched off itself. Anyone else noticed similar trouble? Does it mean there is still need to switch the phone off before changing SIMs?
Anyway, going to explore Kaiser.

its not a crash, its just what it does from what I have read, so i guess its just not "hot swapable"

y2whisper said:
its not a crash, its just what it does from what I have read, so i guess its just not "hot swapable"
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It seems like - switching off occurs in the exact moment of unlocking SIM card cover... Well, shame - SIM hotswapping would be really cool

SIM card hot swapping is really bad. I work at a Operator and you don't want to know what kind of network trouble this can bring.
I've also had the Kaiser for a couple weeks now, and yes, it is supposed to shut down when you open the SIM cover. It's just for your own protection, you can even break your SIM if you remove it while the device is on (and, has a electric current flowing to the SIM).

thats what many design work are done to prevent users from doing things dangerously. If you've noticed, that all phones SIM cards are hidden under the battery and/or blocked by the battery in one way or the other. That's to force user to shut down the phone before doing anything with it. I'm sure that's for the protection of the SIM and/or not making a mess on the telco system, which may heavily affect the phones popularity

Not true. Another HTC handset with easy access to SIM card slot locatyed under slide out keyboard:
HTC VOX
also:
HTC TOUCH - side access to SIM card
hanmin said:
thats what many design work are done to prevent users from doing things dangerously. If you've noticed, that all phones SIM cards are hidden under the battery and/or blocked by the battery in one way or the other. That's to force user to shut down the phone before doing anything with it. I'm sure that's for the protection of the SIM and/or not making a mess on the telco system, which may heavily affect the phones popularity
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Click to collapse

eva_d said:
Just got my Kaiser, lovely boxing, lovely phone but I've had a little unpleasant surprise - I've entered SIM card while phone was already on. In result Kaiser have just crashed - I mean switched off itself. Anyone else noticed similar trouble? Does it mean there is still need to switch the phone off before changing SIMs?
Anyway, going to explore Kaiser.
Click to expand...
Click to collapse
It's actually in the manual. Page 24 section 1.2
Always turn off your device before installing/replacing the USIM/SIM card and battery.
Cheers.

SecureGSM said:
Not true. Another HTC handset with easy access to SIM card slot locatyed under slide out keyboard:
HTC VOX
also:
HTC TOUCH - side access to SIM card
Click to expand...
Click to collapse
Interesting.. I'd guess I'm at the old age. I did a bit of research, it seems that THERE ARE phones out there that can have hot-swap SIM. This is news. From Nokia N93 review
The hot-swap SIM slot is a very good solution, especially for users having more than one SIM. It allows you to exchange SIM cards without the necessity to switch off the phone and remove the battery. It is enough to switch phone in offline mode while changing card. At least it should work and it works on N90 just fine but on N93 with the current firmware version it is impossible to remove the SIM card even in offline mode because it causes prompt freezing.
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Redah said:
SIM card hot swapping is really bad. I work at a Operator and you don't want to know what kind of network trouble this can bring.
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Click to collapse
Such as? Hotswapping SIM card from network's point of view looks exactly the same as removing battery without actually switching off the phone, as many people do. In such case network get no notification (IMSI detach) at all about switch off, and the only 'trouble' is network still 'thinks' that user is reachable until the next PLU (Periodic Location Update) or call attempt..
Well explained article on this: http://en.wikipedia.org/wiki/IMSI_detach
Redah said:
I've also had the Kaiser for a couple weeks now, and yes, it is supposed to shut down when you open the SIM cover. It's just for your own protection, you can even break your SIM if you remove it while the device is on (and, has a electric current flowing to the SIM).
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That's reasonable explanation. I have never got SIM card damaged, but I'd rather prefer not to experience it in future. In fact, my the very first SIM card I have *ever* had is already over 8 years old and still works perfect.

"No SIM"?

Tilt was previously working. Now shows "No SIM" on screen when any SIM is inserted.
Any idea what the issue might be?
I am not the current owner of the tilt, nor do I have access to it to test anything, so that is basically everything I know about it.
What is your best guess?
Thanks

is it your phone or is it a phone you got of e-bay.
If of e-bay it may be that yur IMEI is barred.

saopacic said:
is it your phone or is it a phone you got of e-bay.
If of e-bay it may be that yur IMEI is barred.
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Ebay.
Well if that is that case great, because my carrier does not ban IMEIs, so it will work perfectly for me.
Is that really the message you would get if your IMEI was dissabled though? That doesn't really make sense, as it would see the SIM and you would see it say: Searching for network... Registering... and then it might say no SIM, but it says no SIM right away, so that can't really be it.
Any other ideas?

this is usualy a bad sim card..
usualy either a worn card.. or possibly an issue on the att side with your sim number
if you frequent any core att stores you might could get a free one..

I stopped bidding for it on eBay, cuz I don't feel like taking the risk.
It sold for $127.50

Sounds silly, i know, but i had the same a while ago, found the sim goes in and locks shut back to front the contact part going in last, just maybe this simple

I had a similar problem with my new Tytn II. Only 3 days old and after I took out and reinserted SIM, I got the "No SIM" message, same problem with another SIM card as well.
Just as I was ready to return the device, after a final test with my SIM card, it decided to work. I have not taken out the SIM since and this problem hasn't shown up.

There have been a couple of threads on this problem.
It would seem that the design of the SIM connector is not all that it should be.
My main SIM sometimes wouldn't connect and another couple of SIMs would not connect at all.
A piece of paper, folded if necessary, inserted between the SIM card and the metal clip to increase the contact pressure has completely fixed the problem on mine, but apparently it has not worked for everyone.

Diamond wont receognise sim card

i have a problem with my diamond. It only reads my sim card, wont read any other sim card that is inserted. It was originally using XOR morna rom, done a new flash and still same problem. Re-flashed with a original HTC rom, but still same problem. I some how think its not a software problem as it has been flashed/hard-reset numerous times.
Any one know what problem can be or if anyone has same problem, with solution
thanks
kerim

Mmmm...
When you say it only reads 'your' SIM card, do you mean it's SIM locked. If you're on vodafone for instance, and you put another vodafone SIM in, does it recognise that? Or do you mean it won't allow any other SIM at all... even if the network's the same?
If it's the first option, your device is obviously SIM locked, if it's the second option, have you installed any security software like Ultimate Theft Alert, or similar, which will also block any other SIMs??

its not sim locked, it was an unbranded phone when i first got it. I am on three and have tried 3 different other three sim cards and also a vodaphone simcard, non of them work.
Its like there is no sim card at all. Im starting to thinbk its a hardware problem not software as i have flashed it few times now with different roms

any ideas, i need to get this working urgently

Mmmm...
Definitely sounds like a hardware issue to me. It's probably time to send it away

Hey Kerm when you put the sim cards does it ask you for for the pin??? or what you could do is see if you can try to clean the sim contact in your phone or run a eraser over the sim card contact and see if there is a difference

had a problem with an unreadable sim-card a few months ago as well; A new sim-card solved my problem... But since you are having trouble with 3 different cards, it might be a hardware problem in your case indeed.

doesnt ask for any pins, as soon as the phone starts up with another sim card inserted, it says no sim card. When it starts up with mu simcard inserted, phone function runs as normal, i can see reception bars etc

I had the same problem when i received my diamond. Tried several sim cards but none was recognized.
I received a new phone because it was a hardware failure.

Sounds like mu has a way of making a new kinda sim lock that only works with there phones ,I would digg a lil deeper and make sure its not a sim lock on your phone

what do you mean by MU, couldnt make it out. How can i find out about if its been sim locked

No sim card problem.

Hello to all,
before u start saying to search the forum, i did. But havent find solution for my problem so i opened a new thread.
So the problem is that my tytn register some sim cards but some dont, its like a random thing. My old sim card and new one works, now i tried with new sim card but from a nother network, and it says no sim, i try with my old sim from the same network and it works. I tested with about 10 random sim cards and 6 out of 10 works, no matter how old they are and from what network they are. I flashed my phone, tried new roms, cleaned sim card slot, but nothing worked.
If u can help me, i will be verry grateful
P.S: Sorry for my bad english

out of the 10 sims, 6 work...correct? lets call the sims that work numbers "1 through 6" and lets call the sims that don't work numbers "7 through 10".
i would say it is a hardware problem IF AND ONLY IF even one of "1 through 6" STOP working or if even one of "7 through 10" START working.
in other words, it is NOT a hardware problem if "1 through 6" work consistently and "7 through 10" fail consistently.
if you determine that it is a hardware problem, then try inserting a piece of paper behind the sim for an extra tight connection or search for bad/loose "main flex cable" and/or "sim assembly".
if you determine that it is not a hardware problem, search about possible known incompatibilities of the kaiser with certain networks' sim cards.

Thanks for advice...i fixed the problem by bending the metal that holds sim card.
But i still dont get it how that fixed things cause sim cards one that worked they worked every time and othet way around with non working sim cards...but ok... now they all work...

nice to hear your problem is solved!
i believe the sim cards that didn't work were probably just "thinner" than the ones that worked. so bending the metal pushes the thin sim cards tighter against the connectors. inserting a piece of paper behind the sim card has the same effect, and it is one of the first suggestions you will read about in most threads about sim card problems.
anyway, congratulations, and its nice to see that you updated your thread with information that helps "close" the issue...perhaps you can change the title of this thread to indicate that the issue was "SOLVED" so that future readers can benefit from it.

[Q] Did I just fry my SIM Card Slot?

Hello,
I recently acquired an HTC One M7 and I started playing with it. After a while, I switched to a different ROM, namely AICP and after playing with it a bit more, I ended up deleting something related to sound enhancement. Everything was fine at this point.
The next day, early morning, I had to make some quick calls, but when I made the first call, I realized that I have no sound input / output during a call, although the music player worked as usual. I proceeded to hot swapping the SIM to another phone (as I said, I was in a bit of a hurry). The HTC did not turn off, while I did so, but when I put the SIM back in it, it did not detect it anymore.
It's been showing the NO SIM CARD message ever since, although I changed a couple of ROMs, including CM, Viper, Android Revolution HD and I tried the tape on the backside of the SIM card trick, I cleaned the SIM as best I could and I even tried different ones.
Finally, I wander whether I managed to somehow damage the slot of the SIM card, since the SIM works perfectly fine on my other phone.
If any of you experienced something similar, please, let me know how you solved it.
Thank you!
Have a nice day!

I have been able to hot swap sim cards on HTC One without an issue.

airliftpilot said:
Hello,
I recently acquired an HTC One M7 and I started playing with it. After a while, I switched to a different ROM, namely AICP and after playing with it a bit more, I ended up deleting something related to sound enhancement. Everything was fine at this point.
The next day, early morning, I had to make some quick calls, but when I made the first call, I realized that I have no sound input / output during a call, although the music player worked as usual. I proceeded to hot swapping the SIM to another phone (as I said, I was in a bit of a hurry). The HTC did not turn off, while I did so, but when I put the SIM back in it, it did not detect it anymore.
It's been showing the NO SIM CARD message ever since, although I changed a couple of ROMs, including CM, Viper, Android Revolution HD and I tried the tape on the backside of the SIM card trick, I cleaned the SIM as best I could and I even tried different ones.
Finally, I wander whether I managed to somehow damage the slot of the SIM card, since the SIM works perfectly fine on my other phone.
If any of you experienced something similar, please, let me know how you solved it.
Thank you!
Have a nice day!
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Click to collapse
I always put my phone in offline mode before swapping sim card. Putting tap will not help. Just try to rub something on the sim card and check that all the points are touching the sim.
Sent from my HTC One using XDA Premium 4 mobile app

kartik.kayz said:
I always put my phone in offline mode before swapping sim card. Putting tap will not help. Just try to rub something on the sim card and check that all the points are touching the sim.
Sent from my HTC One using XDA Premium 4 mobile app
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I tried rubbing the SIM against microfiber after cleaning it with alcohol and I even used another, new SIM.
Unfortunately, I cannot really check whether or not all points on the SIM are touching slot contacts, since opening up the HTC One M7 is really hard and that would be the only way to actually take a look at the slot.