[Q] WIFI only work without sim card - Galaxy S II Q&A, Help & Troubleshooting

Hi all, newbie to android. Got a Galaxy SII and everything worked ok including WIFI, found the wifi instantly and connected to it instantly...until...i insert the sim card.
My modem is Billion 7800N, works great with my computer and the new phone before i insert the sim card.
[Update:] Changed the modem to my old Netgear DG834G. Same thing.
after i insert the sim card, 3G works but my network just became "Not in range". i can still see other networks from my neighbours.
restart, same.
shut down and take the sim card out, start, still Not in range.
Reset and wipe everything, without sim card, it found the network and connected and worked great again.
Insert the sim card again and my network not in range again........
Anyone came across this? my guess would be it's the modem but without the sim card everything is fine. but with the sim card i can only see other people's network but not mine...
Any idea?
Thanks!

No, I can access WiFi very well with SIM card inserted, same router as yours. And I don't think a SIM card has anything to do with WiFi.

ithehappy said:
No, I can access WiFi very well with SIM card inserted, same router as yours. And I don't think a SIM card has anything to do with WiFi.
Click to expand...
Click to collapse
Thanks ithehappy, glad to know someone using the same modem with no issue. Do you mind letting me know your wireless settings for the modem please?
thanks heaps

update:
change the wireless password setting to WEP2 AES and all good now...
thanks

Glad to hear that, though mine works without security.
Regards.

Related

"Cannot connect for an unknown reason" with every ROM I tried

I bought a used Orange UK TG01, unlocked it with an unlock code, then flashed some cooked ROMs. Voice calls work perfectly, but a "Cannot connect for an unknown reason" comes out immediately when I use anything that needs a data connection. This even happens with a stock Hong Kong WM6.5 ROM.
Is my TG01 defective? I flash ROMs with SDDL+ and my microSD card is a Transcend 8GB microSDHC Class 6. The only things I haven't tried yet is using a microSD (<2GB) card and using the pin shorting method to flash ROMs instead of using SDDL+.
I'm in Hong Kong and my mobile operator is PCCW 3G. All connection settings are correct. The same settings and SIM card work with my HTC TyTN II.
Try this....
Change your sim card with your friends or your wife's. I am thinking that your phone company is the problem. I had the exact same problem with my phone here in Japan. Said something just like your message. So I swapped the sim card with the sim card in my wife's phone and boom... my phone worked perfectly. I had to call my phone company over and over and over again, then they said that they will "refresh" my phone account and it took three days. So... just try a different sim in your phone, the problem you are describing is EXACTLY the same as I experienced. No data connection, but SMS(I think.. I am not sure, it happened to me three years ago) and phone works fine.
Check it out, tell me what happened when you swap sim cards?
-Kilihari.
Luckily my operator happens to be carrying out some network upgrades which requires me to get a new SIM card from them, no phone calls needed.
I got my new 64K SIM card and bam, everything works perfectly now! The chip on the SIM card is smaller than my previous SIM card.

[Q] At&t Galaxy SII unable to read the sim card

Hi All,
I have a Galaxy SII, which I rooted and flashed with ICScrewD ‬‬‬‬‬♦‬♦♦‬♦Homemade Ice Cream
http://forum.xda-developers.com/showthread.php?t=1375255
It worked fine for a couple of days, now all of a sudden I am not getting any signal on my phone, and instead of the signal bars I am getting the no network symbol. I tried different modems, different ROMs, doesn't seem to work. I even went back to the stock, but no luck.
When I went to the wifi & network settings and tried to click on the network settings it says "insert sim card" even though the sim is already in there. I tried my sim on a different phone, it works fine. So i am guessing its not At&t's fault.
Has anyone else had the same problem? Any help is greatly appreciated.
When you re-inserted your sim card back in your GS2, what happened? Is it an old sim and are the contacts worn and scratched?
The contacts are just fine. Even when i reinsert it nothing happens, I still get the no network symbol. It is basically behaving like no sim is inserted.
Well it sounds like a trip to an AT&T store might be in your future to test another SIM card. Hopefully that's all it is. Wifi radio works fine?
Try reflashing back to stock?
The wifi works just fine, and i tried flashing it back to stock, did a factory reset also, but nothing seems to work.
I have not dropped my phone even once, so that rules out the physical damage.
Well not sure this will help *fix* the issue, but might provide a bit more insight into what exactly the phone is and isn't seeing. If you download Elixir 2, linked below, and run a report and send it to yourself via email, look in the Telephony section of the report and see if the phone even sees the SIM card. Obviously it sounds like it doesn't, but if it gives you your SIM serial info in there, you might be able to rule out an issue with the actual card itself, etc.
Elixir 2 - https://market.android.com/details?id=com.bartat.android.elixir&feature=search_result
Nope, it says sim state is unknown, I guess i will have to go to the At&t store then.
Thanks anyways.

wifi gets disable

dear all please help me.
the wifi on the droid dna (verizon one) gets disabled when i put in the local gsm sim card here in India. its shows "disconnected" while switched on but it does scan the wifi connections but never able to connect to it.
However, voice sms and data work fine but not wifi.
After that i do a factory reset after taking out the sim card and then wifi connection starts working until i put in the sim again.
i did 3 custom roms as well but no solution. was thinking if flashing radio could help?
p.s. this is not hardware problem as the Droid DNA of my sister is behaving the same when inserting local sim card.
Are you flashing the appropriate modules for the ROMs/kernels you have flashed?
Sent from my Nexus 10
ThRiLLeR 3117 said:
dear all please help me.
the wifi on the droid dna (verizon one) gets disabled when i put in the local gsm sim card here in India. its shows "disconnected" while switched on but it does scan the wifi connections but never able to connect to it.
However, voice sms and data work fine but not wifi.
After that i do a factory reset after taking out the sim card and then wifi connection starts working until i put in the sim again.
i did 3 custom roms as well but no solution. was thinking if flashing radio could help?
p.s. this is not hardware problem as the Droid DNA of my sister is behaving the same when inserting local sim card.
Click to expand...
Click to collapse
i have the same problem mentioned above with my butterfly x920e but i have the the phone with global open cid HTCCN701.
I have been purchased the phone from china and now i am in Pakistan.
But wifi with the chinese sim is working and when i insert any sim of pakistan wifi is automatically disabled and said "Not in Range".
After a full reset without sim card will do wifi oprational.
i have tried many stocks and custom roms but no luck.
stock rom that i have is an earliar version of my current rom due to S-ON i am unable to downgrade.
is there any way to get S-OFF on x920e Manually?
Any type of help appriciated.
thanks in advance.

your sim card does not allow connection to this network 311660

Hi Guys.
I just bought a unlocked HTC Vivid X710a on ebay. I received it and took off the sim card from my Metro PCS phone and placed it in the HTC.
However I am getting this error message when I try to connect to the Metro PCS network (311660)
"your sim card does not allow connection to this network"
What should I do?
Thanks
same
same issue here
Maybe the phone is blocked from that network by IMEI.
To follow up, I placed a T-Mobile Sim Card on it and it worked perfectly.
what do you guys think? Could it be a sim card problem? but if so, why does it work on my metro pcs phone?
mariarodriguez said:
To follow up, I placed a T-Mobile Sim Card on it and it worked perfectly.
what do you guys think? Could it be a sim card problem? but if so, why does it work on my metro pcs phone?
Click to expand...
Click to collapse
Problem solved.
Metro PCS Sim cards are locked to only one phone. Went to the store and the assigned the new phone for a 16$ charge.

LG G3 accepts only one SIM card

Hey everyone,
I am an owner of a G3 but I switched my mobile service provider recently. When the new SIM card arrived I switched them but my G3 did not accept / see the new SIM card and there was no possibility to type in my PIN. I ordered a new SIM but the problem remained with the new SIM card. So I tried a lot of other (working) SIM cards from different other service providers but also no luck. So I thought maybe the phone has SIM lock and I tried another SIM card from my old provider but it also did not work.
The weird thing is that when I put in my old SIM card the phone appears to be accepting the SIM card. The PIN prompt appears normally, I can type it in, the phone accepts. There is just no reception which is normal because I switched the service provider. I also tried a factory reset, also no luck. The phone was rooted but I unrooted and resetted it. Is it possible that I broke something because of root?
Other than this problem the phone works perfectly. Has someone an idea or some experience with a similar issue and knows if it is possible that a phone accepts only one SIM card?
I have no idea what the cause of the problem could be and I am really running out of ideas ...
I would be very thankful for any ideas or suggestions!
Thanks,
Patrick
Or did maybe someone have a similar experience with a different phone?
Thanks!
Gesendet von iPhone mit Tapatalk
Hi again,
I tried some more things but still nothing helped.
The things I tried were:
- unrooting the phone and factory reset
- reflash radios
- try completely diffrent rom (CM)
Still I have no idea what the cause could be. Maybe the sim card reader is just broken. Just weird that it reads my deactivated sim card.
I would really appreciate it if someone has an idea or some similar experience..
Thanks!

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