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.
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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
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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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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

So im not new to these phones but this is proly my frist post on here. Ive been able to master flashing and all that other stuff, but for some reason, after i connected my tilt to a buddies laptop, my phone said no sim. and ever since that sync it won't read my sim card. ive tried the paper trick, soft/hard resets/ flashing a new rom onto it.. ect.. and this getting that same insert sim. should i just be done with it and say its something internally wrong with it?

Tried another sim?

going today to get another one, but its a new sim, maybe 2 months old

see these threads:
http://forum.xda-developers.com/showthread.php?t=515264
http://forum.xda-developers.com/showthread.php?p=6638578

[Q] Rooting with no SIM?

So, my N6 is supposed to arrive on Tuesday. I am currently using a Galaxy S3 on Verizon. I am going to trim my SIM card and pop it into the nexus when ready.
My question is, can I put on a custom recovery, root, decrypt, update to 5.0.1, etc all without utilizing the SIM? Is there anything specific other than using mobile cell/data services that are going to fail from not having a SIM? I know that when the SIM accidentally pops out of my GS3 the phone pops up a window saying a reboot is necessary to try to find the SIM and there is only a single OK/Reboot button and no other options.
I want to try to do all the main imaging and rooting work while still utilizing my GS3 as my phone, and then when I have the N6 ready I nandroid backup both phones and then pop the SIM over. I did pick up a nano to micro SIM adapter in case I need to move the SIM back to the GS3.

Well, I guess if no one knows I will give it a try when I get the phone this week and update you all on if it works.

you can do whatever you want with it without ever putting a sim card inti it. the sim card is only for your phone/data provider. and has nothing to do with rooting your phone.

simms22 said:
you can do whatever you want with it without ever putting a sim card inti it. the sim card is only for your phone/data provider. and has nothing to do with rooting your phone.
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Cool. I figured as much but had not heard anyone that had done it. I wasn't sure if there was some technical requirement to have the phone activated before root/recovery took place or anything. All my previous phones came from carriers so they were all activated before leaving the store and before being rooted.

rgraville said:
Cool. I figured as much but had not heard anyone that had done it. I wasn't sure if there was some technical requirement to have the phone activated before root/recovery took place or anything. All my previous phones came from carriers so they were all activated before leaving the store and before being rooted.
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na, ive done that. my sgs4 was never with a sim. my n4 and n5 are without a sim at the moment, the n4 and n5 were rooted before i even booted it the first time.

I did it with my new N6 because I had to wait as well to get new Sim.
Unlocked bootloader, rioted in encrypted. Screwed it up and started all over again. I think I flashed the factory image 5 times that night trying new stuff

Two Sim Cards?

I'm on a trip and just purchased a Xiaomi MI5. I have been setting it up with wifi and putting all of my favorite apps on it but thought that I would wait until I get back home before I put my sim card in and start using the phone every day. First impressions are very good but I would like to know why does it have two sim card slots and can you use it with one sim card? Where I purchased the phone they spoke little English so they couldn't answer my question. Thanks.

SamStone said:
I'm on a trip and just purchased a Xiaomi MI5. I have been setting it up with wifi and putting all of my favorite apps on it but thought that I would wait until I get back home before I put my sim card in and start using the phone every day. First impressions are very good but I would like to know why does it have two sim card slots and can you use it with one sim card? Where I purchased the phone they spoke little English so they couldn't answer my question. Thanks.
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It is a dual sim phone. You can choose to put 2 sim cards in. Or use it with just one.

No sim card, comes and goes..

My devices sometimes cannot read the sim card, and some times it can. No matter what sim I use, what ROM I use, and I've even tried another sim card reader, but the problem seem to be something else.
Anyone experienced this?
I've been looking for a way to emulate a sim card, like a soft sim solution, but it seem this is not easy..
Maybe it's time to let the old m7 retire...
Anyway, thanks to all contributors in this community, it's been awesome. Merry Christmas and a happy new year.

rbrandser said:
My devices sometimes cannot read the sim card, and some times it can. No matter what sim I use, what ROM I use, and I've even tried another sim card reader, but the problem seem to be something else.
Anyone experienced this?
I've been looking for a way to emulate a sim card, like a soft sim solution, but it seem this is not easy..
Maybe it's time to let the old m7 retire...
Anyway, thanks to all contributors in this community, it's been awesome. Merry Christmas and a happy new year.
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Maybe the sim card isn't making a good contact when inserted in the tray, A few ppl got a similar issue and used paper to shim the sim card (not recommended since your sim tray can get stuck). I would try another sim first...

alray said:
Maybe the sim card isn't making a good contact when inserted in the tray, A few ppl got a similar issue and used paper to shim the sim card (not recommended since your sim tray can get stuck). I would try another sim first...
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Yes, that's a common issue. The first steps was to use a little tape on the sim, second step was to try another sim, third step was to open the device and take out the sim reader, clean it with ethanol, check every pin and so on, then I tried another sim reader, but the problem still remains.

I too have the same problem, of signal on and off. I think the device detected the SIM card as it asked for PIN to unlock. I tried the *#*#4636#*#* to choose WCDMA only / preferred, but still same problem. So, did you retire the beautiful phone of yours?

cryptosporidium said:
I too have the same problem, of signal on and off. I think the device detected the SIM card as it asked for PIN to unlock. I tried the *#*#4636#*#* to choose WCDMA only / preferred, but still same problem. So, did you retire the beautiful phone of yours?
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Since not even replacing the sim reader solved the problem, it can no longer be used as a phone.
And anyway, the battery is getting seriously old, so when my dogs destroyed my remote control, the good old HTC one m7 now have a new life, filled with joy and happiness.
Anymote app is nice, and m7 are now a media control hub in my living room.
Since April 29 2013 this device have improved my life quality, with the good help from this great community on XDA.