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Putting in the SIM card on the fly

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


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Originally Posted by hanmin View Post
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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zachto
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Quote:
Originally Posted by eva_d View Post
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.
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.

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ROM Date: 08/28/07
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hanmin
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Quote:
Originally Posted by SecureGSM View Post
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
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

Quote:
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.
 
eva_d
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Originally Posted by Redah View Post
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.
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

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Originally Posted by Redah View Post
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).
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. ;)
Dawid 'evad' Lorenz

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