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-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   N900 Problem: SIM Card Not Recognized (https://talk.maemo.org/showthread.php?t=36447)

EarthRise 2010-02-23 21:07
Re: N900 Problem: SIM Card Not Recognized
 
Thanks, good to know, i'll bear that in mind in the future. Its moot just now tho as I sent it back today. Fingers crossed that all is well with the replacement. I'm very interested to know why its happening at all in the first place though. Any ideas?

courtneyg 2010-02-27 19:38
Re: N900 Problem: SIM Card Not Recognized
 
Hi

Having the same problem as you mate. My story is exactly the same, had the phone since tues, was using it this morning and then suddenly sim card registration failed. with the red line through the sim. Can anyone help

Dirkjl 2010-03-01 09:52
Re: N900 Problem: SIM Card Not Recognized
 
Another satisfied user here with the same problems. Considering a total reflash too. Maybe later today.

courtneyg 2010-03-01 10:11
Re: N900 Problem: SIM Card Not Recognized
 
I've reflashed to no avail, I've had to send it back to the guy who I bought it from, good old ebay. The worst thing is, the phone works perfectly but I just can't get any sort of reception.

Dirkjl 2010-03-01 10:49
Re: N900 Problem: SIM Card Not Recognized
 
Did you do a flash with the new firmware? I'm doing a flash with the vanilla firmware? That one entirely eraises everything on your N900 after that flash you can do a flash with the latest firmware.

courtneyg 2010-03-01 11:11
Re: N900 Problem: SIM Card Not Recognized
 
Yes, did it all that, but it didn't resolve the problem. Give it a go and tell me what happens. I'm gonna post this off at 1 so if yours works. I'll give it another go.

ABerri 2010-03-01 19:51
Re: N900 Problem: SIM Card Not Recognized
 
I was one of the original posters here who has been having this problem ever since I got the phone several months back. My wife got hers from Dell, and mine came from Amazon. My wife's N900 never had the problem of the sim card. Only mine does and when that "No Sim" comes on, you have to open and close the keyboard to get it to re-register with the network. That's the temporary fix for now.

Now as for flashing, I flashed twice using NSU and it never helped. In fact, right after I flash the phone and the thing is brand spanking new, I get that "No Sim" like 20 times a day. It's only as time goes on, do I get it less often.

And no I haven't installed any repositories anymore and haven't downloaded sh*t anymore cos I'm soo sick of this device. I swear I can rant for days but what's most frustrating is this "No Sim" problem and missing calls and text and calls dropping left and right. Never in my 10 years with T-Mobile did I have dropped calls or no service until this expensive piece of shi*t N900 entered my life.

This is why I have it for sale on Craigslist. $450 for anyone who is interested. This is if I don't run over it with my car very soon.

shaf 2010-03-07 21:45
Re: N900 Problem: SIM Card Not Recognized
 
Been having this problem for a few weeks now, sometimes its working fine and then some days it decides the sim card wont get recongised!

Dirkjl 2010-03-08 11:36
Re: N900 Problem: SIM Card Not Recognized
 
It has been a week now since I flashed my N900 with the vanilla firmware after that I have flashed it with the latest firmware. Haven't seen the 'no sim-card' symbol since.

rash.m2k 2010-03-08 11:43
Re: N900 Problem: SIM Card Not Recognized
 
You should check out this thread here:

http://talk.maemo.org/showthread.php?p=559717

Contains some useful info about rectifying this issue.

jamie721 2010-03-08 11:45
Re: N900 Problem: SIM Card Not Recognized
 
i had the same problem not sim card recognised when i first got the phone i phoned vodafone and they said give a few days for sim card to activate "dont think this is your problem tho". After a reflash you will not recognise your sim card untill the system has been completly updated.

MaxyOne 2010-03-20 04:38
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by Dirkjl (Post 559705)
It has been a week now since I flashed my N900 with the vanilla firmware after that I have flashed it with the latest firmware. Haven't seen the 'no sim-card' symbol since.
What FW, did u flash? Because ive done the same thing, and now i get "internal memory error" :(
Now i use the first global FW.
If i install the second global, the phone will not recognise my mass memory.
The first global is the only one that recognise my mass memory.
ive flashed even with vanilla emmc and then the last fw. Nothing.

ABerri 2010-03-22 20:28
Re: N900 Problem: SIM Card Not Recognized
 
I've finally and successfully flashed my firmware using Maemo Flasher. I used a computer with XP instead of Vista which was the culprit of it not working earlier.

I flashed my phone with the latest Global Firmware. I still have the "No Sim Problem" every few minutes or every hour or so. All I do is open and close the keyboard and the Sim Re-registers. I'm thinking maybe I should flash the eMMC as well using Vanilla?

I guess I'll try that next time when I'm at my friends house since he has the XP Computer.

ABerri 2010-03-23 18:41
Re: N900 Problem: SIM Card Not Recognized
 
Wow now I'm having that "No Sim" problem more than ever! Ever since I flashed to Global Firmware, this phone loves to display this "No Sim" everytime the keyboard is opened or closed! I guess flashing will not resolve.

How is Nokia Care handling this issue? Does anyone know? I wonder if they are repairing it by just flashing with the latest USA Firmware (which I know it won't fix the problem) or will they actually exchange my phone out for a new one?

sentfromheaven 2010-03-24 01:38
Re: N900 Problem: SIM Card Not Recognized
 
hey people,
well i flashed my phone to latest global firmware, then i lost all the pre-loaded software like pictures and ringtones etc..
so then i flashed back to the latest UK firmware, and i now have the sim card unrecognised problem.

any ideas?
I dont want to go back to the global firmware, cus i quite like the themes and images that are pre loaded.! :(..

EDIT: installed all the firmware updates, latest was 92.7mb, and now everything is working, and even better than before. :) phew!! good luck everyone.

maddler 2010-05-09 23:42
Re: N900 Problem: SIM Card Not Recognized
 
1 Attachment(s)
Just did some testing to try to better understand what's wrong with some sim cards.

What I found is that, most likely, is not with the card itself but with cell towers or at least something not directly related to my N900.

I'm running attached script (which basically tries to read IMSI from inserted SIM), this way I can detect whenever a SIM reading error happens.

I did my test on:

1) H3G ITA, 3G connection, home network
2) TIM IT, 2.5G connection, roaming network

As far as I was able to see errors are more frequent while on my home network than when the on TIM. Here is a sample result:
Code:
101010012032 - ALERT! SIM ERROR! After 2398 seconds. Battery chrg status false <-- I was on TIM before
101010012042 - ALERT! SIM ERROR! After 11 seconds. Battery chrg status false
101010012123 - ALERT! SIM ERROR! After 40 seconds. Battery chrg status false
101010012134 - ALERT! SIM ERROR! After 11 seconds. Battery chrg status false
101010012144 - ALERT! SIM ERROR! After 10 seconds. Battery chrg status false
101010012202 - ALERT! SIM ERROR! After 18 seconds. Battery chrg status false
101010012203 - ALERT! SIM ERROR! After 1 seconds. Battery chrg status false
101010012204 - ALERT! SIM ERROR! After 1 seconds. Battery chrg status false
101010012205 - ALERT! SIM ERROR! After 1 seconds. Battery chrg status false
101010012206 - ALERT! SIM ERROR! After 1 seconds. Battery chrg status false
101010012208 - ALERT! SIM ERROR! After 2 seconds. Battery chrg status false
101010012312 - ALERT! SIM ERROR! After 64 seconds. Battery chrg status false
101010012338 - ALERT! SIM ERROR! After 26 seconds. Battery chrg status false
101010012404 - ALERT! SIM ERROR! After 26 seconds. Battery chrg status false
101010012452 - ALERT! SIM ERROR! After 48 seconds. Battery chrg status false
101010012503 - ALERT! SIM ERROR! After 11 seconds. Battery chrg status false
101010012518 - ALERT! SIM ERROR! After 15 seconds. Battery chrg status false
101010012529 - ALERT! SIM ERROR! After 11 seconds. Battery chrg status false
101010012555 - ALERT! SIM ERROR! After 26 seconds. Battery chrg status false
101010012602 - ALERT! SIM ERROR! After 7 seconds. Battery chrg status false
101010012641 - ALERT! SIM ERROR! After 39 seconds. Battery chrg status false
101010012712 - ALERT! SIM ERROR! After 31 seconds. Battery chrg status false
I have the feeling that the issue is related to two specific towers close to my house. I'll be running same tests tomorrow on another location and I'll compare them.

santiago 2010-05-09 23:52
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by sentfromheaven (Post 579613)
hey people,
well i flashed my phone to latest global firmware, then i lost all the pre-loaded software like pictures and ringtones etc..
so then i flashed back to the latest UK firmware, and i now have the sim card unrecognised problem.

any ideas?
I dont want to go back to the global firmware, cus i quite like the themes and images that are pre loaded.! :(..

EDIT: installed all the firmware updates, latest was 92.7mb, and now everything is working, and even better than before. :) phew!! good luck everyone.
reinstall the CMT radio files

maddler 2010-05-10 18:12
Re: N900 Problem: SIM Card Not Recognized
 
Well, it looks like the error, in my case, is only triggered by two H3G ITA cells towers covering my house. I had no problems, both with H3G and TIM, until when I came back home right now. Strange.

maddler 2010-05-14 11:32
Re: N900 Problem: SIM Card Not Recognized
 
simple script which can help you, at leat if you can roam to a different network while on 2G

HTML Code:
#!/bin/sh

echo "$(date +%Y/%d/%y:%H.%M.%S) -- START" >> /var/log/checksim.log
echo $$ > /var/run/sim.pid

while true; do

        INTERVAL=`date +%S`
        IMSI=`dbus-send --system --type=method_call --print-reply --dest=com.nokia.phone.SIM /com/nokia/phone/SIM Phone.Sim.get_imsi 2>/dev/null | grep string | cut -f 5 -d " " | sed "s/\"//g"`
        TIMESTAMP=`date +%Y/%d/%y:%H.%M.%S`
        case $INTERVAL in
                00|0000|1500|3000|4500)
                        echo "$TIMESTAMP -- MARK"  >> /var/log/checksim.log
                ;;
        esac

                if [ -z $IMSI ]; then
                        sleep 5 
                        echo "$TIMESTAMP -- moving to 2G" >> /var/log/checksim.log
                        dbus-send --system --type=method_call --dest=com.nokia.phone.net /com/nokia/phone/net Phone.Net.set_selected_radio_access_technology byte:1
                        dbus-send --type=method_call --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.freedesktop.Notifications.SystemNoteDialog string:"SWITCH TO 2G!" uint32:0 string:"OK"

                        sleep 3600

                        TIMESTAMP=`date +%Y/%d/%y:%H.%M.%S`           
                        echo "$TIMESTAMP -- moving back to 3G/dual" >> /var/log/checksim.log
                        dbus-send --system --type=method_call --dest=com.nokia.phone.net /com/nokia/phone/net Phone.Net.set_selected_radio_access_technology byte:0
                fi
        sleep 1
done
just launch while in terminal. It will switch to 2G on SIM error. Connection will be moved back to "dual" after 3600 secs.

Have fun.

uddas 2010-05-19 17:21
Re: N900 Problem: SIM Card Not Recognized
 
hi guys i have try every thing that you all disscuss back in this topic i did global version i did other on with emmc.i change the sim card as well but still having the same problum sim card not recognised what should i do now


any one have an idea what is it all about
help me up

maddler 2010-05-19 17:27
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by uddas (Post 666377)
hi guys i have try every thing that you all disscuss back in this topic i did global version i did other on with emmc.i change the sim card as well but still having the same problum sim card not recognised what should i do now


any one have an idea what is it all about
help me up
As of now there is no really working solution. In my case switching to 2G helps, as well as having an established 3G data connection going.

Most likely this issue will be addressed in PR 1.2

StocChr 2010-05-19 17:31
Re: N900 Problem: SIM Card Not Recognized
 
hi dudes,

same problem here... since 4 days my sim card didn't recognized...
before all worked perfectly... now sometimes i have 3G, sometimes no sim card an so on. btw. i can not change to GSM Mode...

any solution?

cheers

maddler 2010-05-19 17:34
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by StocChr (Post 666389)
hi dudes,

same problem here... since 4 days my sim card didn't recognized...
before all worked perfectly... now sometimes i have 3G, sometimes no sim card an so on. btw. i can not change to GSM Mode...

any solution?

cheers
As I said in my previous post, there is no known fix, as far as I know.

StocChr 2010-05-19 17:38
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by maddler (Post 666394)
As I said in my previous post, there is no known fix, as far as I know.
the problem is, i can not change to 2G ( GSM ) Mode
not when sim is ok and not when no sim is recognized

shaf 2010-05-19 17:46
Re: N900 Problem: SIM Card Not Recognized
 
I use to get this all the time then somebody recommended getting a new simcard. I switched to o2 12 month contract and stopped getting the problem, I think it was because the 2g sim I was using was like years old.

StocChr 2010-05-19 18:07
Re: N900 Problem: SIM Card Not Recognized
 
my sim is only 5 months old... never had problems until 4 days

shaf 2010-05-19 18:13
Re: N900 Problem: SIM Card Not Recognized
 
You could try using a different sim for a while, see what happens? If not contact Nokia, I did and they told me to send it to them as soon as possible but I stopped getting the error so it was ok.

StocChr 2010-05-19 18:16
Re: N900 Problem: SIM Card Not Recognized
 
i hope PR1.2 brings a fix for this problem

uddas 2010-05-19 22:23
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by StocChr (Post 666397)
the problem is, i can not change to 2G ( GSM ) Mode
not when sim is ok and not when no sim is recognized
ok fellows after surfing alot and i think i got a clue.......

the problum is lost IMIE number now you see in SETTINGS "ABOUT PRoduct"you will not find the imie number.simple tape on "SETTINGs" there you will see "ENTER CODE FOR UNLOCKING SIM CARD" thats put your sim pin code or puk code hope that work or try to restore your imie number on your mobileHOPE THAT WORK FOR YOU

maddler 2010-05-19 22:34
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by uddas (Post 666755)
ok fellows after surfing alot and i think i got a clue.......

the problum is lost IMIE number now you see in SETTINGS "ABOUT PRoduct"you will not find the imie number.simple tape on "SETTINGs" there you will see "ENTER CODE FOR UNLOCKING SIM CARD" thats put your sim pin code or puk code hope that work or try to restore your imie number on your mobileHOPE THAT WORK FOR YOU
Sorry, I can't really get what you mean.
The issue is not related to a locked sim or wrong PIN. It's a firmware issue.

The IMEI is not related to the SIM/uSIM card. The issue is caused/related to not being able to access the card (in fact in my script I try to read IMSI code instead). Most likely there is no relation with your "workaround" since the phone simply re-read the card by itself.

maddler 2010-05-19 22:36
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by StocChr (Post 666397)
the problem is, i can not change to 2G ( GSM ) Mode
not when sim is ok and not when no sim is recognized
You mean that you are not allowed to switch to 2G or that when you try to switch you get an error/fail?

Keeper 2010-05-20 09:05
Re: N900 Problem: SIM Card Not Recognized
 
I have that problem, too.

I have a sim card (new one!) by O2 Germany - it worked fine the first two days, and now it seems that it is not recognized:
- The N900 asks for the PIN at startup
- The phone does not connect to O2
(- Offline mode is diabled, of course)

When I put in an T-Mobile Germany sim card (an older one which does not support 3G), 2G connections seem to work.

So, is this a firmware issue? And when does the new firmware come out?

StocChr 2010-05-20 12:12
Re: N900 Problem: SIM Card Not Recognized
 
i flashed new firmware, new eMMC... sim card not recognized!

RX-51_2009SE_2.2009.51-1_PR_COMBINED_MR0_ARM.bin
RX-51_2009SE_3.2010.02-8_PR_COMBINED_MR0_ARM.bin
RX-51_2009SE_1.2009.41-1.VANILLA_PR_EMMC_MR0_ARM.bin

what can i do?

maddler 2010-05-25 23:13
Re: N900 Problem: SIM Card Not Recognized
 
I'm testing new firmware right now. I'll let you know.

maddler 2010-05-26 22:06
Re: N900 Problem: SIM Card Not Recognized
 
at least UNTIL NOW situation seems to have improved. SIM error only happens very rarely (until) now.

Asterixnz 2010-05-27 03:07
Re: N900 Problem: SIM Card Not Recognized
 
Hi guys

I wonder if you can help me as it seems I have a very similar problem. This has nothing to do with the last firmware update as about 7 hours before I got pr1.2 this issue started and has persisted into the new update. I was on a call and it dropped it. I looked at the phone and it had the “no simcard” symbol up. The weird thing was it then powered down and would not start up again unless I put it on charge. Odd as the battery was completely full. Anyway it had me beat. Today though I think I am closer to the problem. I noticed the no simcard symbol come up while just mucking about with my desktops and so switched it manually from 3g to gsm. Bang up comes the symbol and off goes the N900. Same thing required to get it going again. I put it back on 3G and it is good as gold. I have tried 2 other simcards and mine in other phones in all modes and they are fine and when in my phone give the same result. Any ideas? Send it back time? The problem is I am in NZ and so am probably not covered by warranty. Luckily the shop I got it from has a year’s return to base warranty. Thanks in advance


P.S I have had a really good look around here and the net and can't seem to find the same issue

P.P.S And now it shuts down if I try and establish a 3G data connection. I did a fresh reflash yesterday by the way.

--------------------------------------------------------------------------------

m_pahlevanzadeh 2010-06-10 00:29
Re: N900 Problem: SIM Card Not Recognized
 
I flashed my n900 but sim card not recognized.then i used apt-get dist-upgraed then my problem was solved.

adambennett 2010-06-13 08:36
Re: N900 Problem: SIM Card Not Recognized
 
**Update ** between the battery and back plastic plate of phone seems to need to be the target of most of your paper squares.

Ok i have solved this problem.

One the second or third day of having my n900 i dropped it and have had the infamous no sim error on and off since.

After trying everything a few humble squares of thin magazine cover have solved my problem.

By placing cut squares of paper between the sim and battery and battery and back case the problem has been resolved.

I know this sounds stupid but without the paper cut outs the sim error returns.

My phone would often not start and would continue in a boot cycle this has also been fixed.

just keep adding slices of paper until problem solved. I hope this helps others as much as it helped me.

duhita 2010-07-01 20:04
Re: N900 Problem: SIM Card Not Recognized
 
Quote:
Originally Posted by Dirkjl (Post 559705)
It has been a week now since I flashed my N900 with the vanilla firmware after that I have flashed it with the latest firmware. Haven't seen the 'no sim-card' symbol since.
I am having the same problem,
I re-flashed my device using following files

RX-51_2009SE_1.2009.41-1.VANILLA_PR_EMMC_MR0_ARM.bin

RX-51_2009SE_3.2010.02-8_PR_COMBINED_MR0_ARM.bin


I bought it from Dubai, now using in India with Vodafone..
the Sim card is not being recognized..

Please help

maddler 2010-07-01 20:15
Re: N900 Problem: SIM Card Not Recognized
 
It's a known bug. Hopefully it will be addressed in the next releases. I hope...


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