[POLL] Sim lock or Sim free - LG Optimus 2x

I would like to thank RC for the great rom that has revived 02x.
Because some of us have a problem with audio calls, and some do not, I think that the problem is sim free and sim lock.
I bought my o2x over the phone carrier's SIM lock.
wanted to put to the poll to see if I'm right or not. perhaps help.
You can also leave a comment if you have a problem or not with audio calls, and which poll you marked.

I voted "Sim Free", but actually, I bought the phone locked, then bought an unlock code for $7.99, and entered it before flashing my custom ROM.
My experience - Using my default carrier baseband and RC's RIL that came with CM10, on 10/31, my calls and texts and data work fine. Signal bars fluctuate a LOT in 3G mode, but are very stable in 2G mode. I got more BSODs on 3G than when I locked the phone into 2G (4 vs 1).
I tried flashing an SU660 baseband but completely lost network, so back to my V21b carrier baseband for now.

Free sim, able to change sim at my will, the cm7 has issue with v20a bb, the signal got lost when dial ussd.
Now changed bb in cm10 to v20s all issue gone and call quality is at its best.
Sent from my LG-P990 using xda app-developers app

Related

[Q] SIM card reading problem

My i9000m on the Bell mobility network is not picking up data after an overnight charge with the phone turned on. Today - nothing. I do have phone use and I can access data on WiFi.
I am running stock ROM. I unlocked the phone using a Rogers SIM card, about a week ago, but went back to the Bell network immediately after with no problem. After unlocking I got the Kies to work and updated to UGJH2. Since then, the network access has been spotty but I've switching to WiFi then switching back and it's coming back. I purchased this phone with a different Bell SIM2 then put my old Bell SIM1 (from an Omnia2) in this device.
*#7465625# shows Personalizatiob Status
network lock [OFF]; Network sublock[OFF]; SP lock [OFF]; CP lock [OFF]
What I've tried
1) Switching to WiFi and back - no data
2) Putting SIM1 back into the Omnia 2 - O2 booted up and accessed the Bell network including data. CONCLUSION - The problem is not the SIM card.
3) Putting the SIM2 into the i9000m - no network access at all; not even phone. This SIM2 is working in the O2 and originally worked in the i9000m. Much to my surprise when I put SIM1 back in the SGS it still picks up the Bell network.
4) Squeezed the SIM holder blew out with compressed air in case it's just a physical problem with the SIM being held tight enough - SIM1 still not picking up data.
So it would seem that there is a problem with my SGS reading SIMs other than the one in use when whatever happened happened. Any suggestions on how to get other SIMs, even from the same network, to work? If I have to submit my phone to Bell I need to re-lock it. How do I do that?
Thanks for the help.
--- update---
relocked the phone using *7465625*638*# then 302610 and my unlock code. Power off / on still no data access. Now *#7465625# shows Personalizatiob Status - network lock [ON]; Network sublock[OFF]; SP lock [OFF]; CP lock [OFF]
first try this
http://forum.xda-developers.com/showthread.php?t=789039&highlight=*#0011#
does it show which band it is using for data?
you can also try this
http://forum.xda-developers.com/showpost.php?p=8124344&postcount=45
install the APN on off
then flip it on / off and back to on
see if that helps
Thanks for the response.
I did the #*0011* It's flipping between the 850 on 5 and 1900 on 2 The DL and UL numbers are slightly different. I did have to reconnect to the APN.
How would this affect installing *other* Bell SIMS? That's what worries me the most - that it wouldn't read another Bell SIM that works in another phone.
the only time i see this happen is if you swap the SIM card when the phone is ON
if you turn off the phone, change between SIM1 and SIM2, then turn it back on, you should not see that problem
I know because i was playing around with multiple SIMs when we were researching the Unlock methods for this phone
I take out the battery before I change the SIM. I have to for the Omnia 2 so I just got in the habit. This is sounding worse and worse
although I was rushing off to work so maybe I didn't - hope springs eternal.
----resolution ---
sometimes you just have to call Bell, wade thru the 1st level support and get to someone who knows what's up. Apparently my phone plan changed today (I didn't know it was post dated) and the data feature was not provisioned even though it's a plan that includes data. The guy invoked the feature and poof - data. yay. AllGamer, thanks for your help.
you'r welcome
I did have the same problem, using 2 numbers from 2 telcos, both sims work fine on my iphone but I9000 fail to recognize 1 of these 2, no matter how I tried, I actually did all crazy things like insert couple paper layers between the sim and the sim slot to create additional pressure on the sim contact circuit.
Suck thing about this is non-recognizable sim has data plan with it, which I want to use on I900, finally I asked the carrier to issue a new sim and all thing work fine. It's a new sim type anyway. You may want to try this if all other means doesn't work.
The fix is easy I use to have a moto milestone and when this happened a simple reboot fixed the data connection.
Sent from my GT-I9000M using XDA App

Modem Help

I bought this tablet a year ago unlocked i was on three network i switch to vodafone and updated to 2.3 everything worked but decided to switch back to three this is where problems started
Inserted three sim and it just said emegency calls only if i made a call it said call not sent
Inserted three broadband tablet sim said same thing
So i put a tmobile sim card in that tried to call but immedietly disconnected but the mobile internet worked
Inserted vodafone and everything work calls texts and internet
Then in about phone it said unknown firmware so i tried every european firmware it reconised the firmware but everything was same as before so i tried the unlock which set my serial number to 0000000000 which did nothing i need three for the speed otherwise this tab is pointless except for wifi at home ive reinstalled several times with all different kernals and roms im currently on 2.3.6 please help
Sent from my GT-P1000 using xda premium
Sent from my GT-P1000 using xda premium
I encountered exactly this issue today.
I wanted to test the data speed from another carrier (same band: 850 Mhz).
It did not detect the data network so I thought "never mind", and inserted my SIM I always used (over 10 months).
It now says "emergency calls only", and when I click to check Mobile Networks in settings, it says no SIM detected. When I insert my SIM into another phone it works.
I tried a few other radios, but it doesn't work.
So what to do with an issue like this?
I have no idea i have tried every possible combination of everything from flashing modding but if a manually choose network it says sim not allowed to register on this network if that helps ive rung both three and samsung with no help x
Sent from my GT-P1000 using xda premium
What modem are you guys using ?
dirlan2001 said:
What modem are you guys using ?
Click to expand...
Click to collapse
I need for the 850 Mhz band, and so far only 2 are confirmed to work on this band.
I have tried both, and several others now as well. Now I would settle for SIM card detection and GSM signal...
For example I have tried
Telestra-modem.zip
JK3
JPZ
HKC1
JK5
JPE
None work even for detecting the SIM card.
Calavaro said:
I need for the 850 Mhz band, and so far only 2 are confirmed to work on this band.
I have tried both, and several others now as well. Now I would settle for SIM card detection and GSM signal...
For example I have tried
Telestra-modem.zip
JK3
JPZ
HKC1
JK5
JPE
None work even for detecting the SIM card.
Click to expand...
Click to collapse
Hmmm, I used to be on JMA, changed to JPZ and now I'm on JQ2 all working as it should here in Belgium with Telenet...
Calavaro said:
I need for the 850 Mhz band, and so far only 2 are confirmed to work on this band.
I have tried both, and several others now as well. Now I would settle for SIM card detection and GSM signal...
For example I have tried
Telestra-modem.zip
JK3
JPZ
HKC1
JK5
JPE
None work even for detecting the SIM card.
Click to expand...
Click to collapse
i have tried some of the above my friend who got his galaxy tab the same week from the same place so i tired the same firmware as him which is what i am currently on now and nothing its JID
i have just tried km1 and jq2 but when i used jq2 it showed as jq3
black1stallion2 said:
i have just tried km1 and jq2 but when i used jq2 it showed as jq3
Click to expand...
Click to collapse
Yep, same here... the zip says JQ2 but the inside is JQ3, which I assume is the latest release Anyway, for me it works a charm.
I just sent my 10 month old Tab for repairs.
The Samsung service center people and carrier staff were all very surprised it didn't work.
Let me explain why. When I insert a SIM card from carrier #1 on 850 Mhz band it works. I then insert a SIM card from Carrier #2 on the same 850 Mhz band, and it does not work.
I insert SIM #2 into another android phones (tested Galaxy S2, S1, galaxy nexus, and a "dumb-phone")... the SIM works.
Then we tested SIM #3 from the same carrier of SIM #2.... SIM #3 works. Very confusing.
Conclusion.... the SIM card slot is "broken". Nobody knows why some SIM's work, and others do not.
Result. 3-5 days wait for a repaired device or a new device.
Edit: And big thanks to every android custom rom developer out there. Your hard work and diligence allowed me to revert back to a Stock 2.2 ROM, including locked bootloaders, before sending back for repairs.
This is bad news...
I got a call from Samsung and they explained to me that they had to change the entire mainboard. Naturally they didn't have any in stock, and had to order it from Korea, and I'm out of a Tab for 3 weeks.

[Q][Solved] Some particularities of "Free" network in France

Hi everyone,
I bought myself a nexus 4 and I gave the P990 to my girlfriend.
I did a factory reset and inserted her SIM card (the mobile operator is called Free, a french operator), and I got a "roaming" symbol in the network. This was with the combination I have in my signature.
I've been trying different basebands today, and now I can't get any reception at all, it just says "No network".
Now I'm with DjangoManouch stock rom, 218 baseband, still no network with Free's sim card, but I tried with my sim card and it's working perfectly... I tried Free's sim card in my nexus 4 and it is also working perfectly...
I did get "normal" reception using the combination in my sig with free's sim card at a specific location... my best guess is that free's cell towers need a very specific baseband for it to work correctly? Do you have any ideas?
Thanks a lot in advance.
Cheers!
Slight update, the total network loss was solved by changing to the correct IMEI (it must have been reset by one of the flashes I did).
But the "roaming" problem is still there Manually selecting the network solves it temporarily. Has anyone ever had a similar situation?
Thanks!!
Did some more research... apparently her network has very limited coverage, and for the areas where it is not covered it has a deal with another operator, Orange.
So, whenever she doesn't have "official" coverage, she'll get the roaming symbol. And apparently they have an app to avoid people in the border to get reception from foreigner operators, which would mean "real" roaming, which is odd and interesting.
Anyways, hope it will help someone...

[Q] Please help! Sprint One sim unlock, Always No service and won't auto reconnect

For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Sim Unlock
lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Click to expand...
Click to collapse
How did you get the SIM unlocked in the first place?
lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Click to expand...
Click to collapse
This is probably because T-mob covers only particular places the frequencies this phone uses http://theunlockr.com/2013/07/05/htc-one-sprint-specs/ vs t-mob https://t-mobile.jive-mobile.com/#jive-document?content=/api/core/v2/documents/4988
Sent from my HTCONE using Tapatalk
Is there any solution for this problem ?
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks
lazybozz said:
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks
Click to expand...
Click to collapse
well, I am not an expert on the tmobiles network, but going by what lazybozz, said, I seem to remember tmobile using different bands than the other carriers, so what you may be experiencing, is the phone being in the vicinity of multiple towers, but not all of them are within the band that the phone supports. So its like the phone doesnt even see those towers. On a side note, this issue caused alot of chaos for those who unlocked iphones about 3 years ago, they could use EDGE on tmobiles network but not 3G, so i assume this is a similar situation. So long story short, yeah you probably cant fix the problem, unless you get a quad band phone. I could be wrong, but it does sound like a logical reason for the issue you are having.
as elvisypi said above, Its the freq that T-mobile operates on in that area. If your getting T-mobile at all in the states then you have already flashed a radio. However flashing any other radio is not going to give you the freq that tmobile uses, Its not a software limitation its a physical hardware limitation.
Thanks for your reply, do you know any app out there that monitor and alarm you when the network or signal is lost ? That works with 4.3 ?That way at least you know the phone is offline ... some of the apps I tried is anything at all ...
Thanks
Have you tried an app like tasker? Its essentially an automation app. It isnt jist for your use. Its for many different functions. Jist look on the app store for tasker. That might help
Sent from my HTC Butterfly s using Tapatalk

No signal/voice/data - Restricted access changed. Voice service is blocked

Just as the title says, the phone was working fine then suddenly it lost all signal and went into some kind of restricted mode, it's a friend's phone and he is almost 84 years old.
I have flashed the latest firmware and factory reset to no avail, also changed sim cards and here comes the weird behavior:
I don't have a standard-sized sim card so I had to take it from my USB LTE Modem, it's from another carrier and the phone detected the sim card, went with a full -77db HSDPA signal but data doesn't work at all, it seems to be disabled on status, even configuring the proper APNs it refuses to work. Can't test voice and all my other working sim cards are nano.
Inserting any other sim from another carrier results in no signal/restricted access but the phone still downloads the Internet/MMS configuration.
Have tried setting it manually to WCDMA and GSM, nothing seems to work, only my data sim worked so far *without the data*.
Maybe the IMEI is banned for some reason?
Never heard of this issue until now
Have you tried to flash a firmware that aren't from any carrier?
Kizoky said:
Maybe the IMEI is banned for some reason?
Never heard of this issue until now
Have you tried to flash a firmware that aren't from any carrier?
Click to expand...
Click to collapse
Yes I did, flashed the USA unbranded kitkat rom.
Just got the chance to test with two sim cards from different carriers:
Carrier #1: Registered on network, no data traffic, voice call drops just after trying to call, signal ok
Carrier #2: Registered on network, data traffic seems ok but can't navigate, shows H+ and proper APN and traffic arrows activity but when you try a call it says "Mobile Network Not Available"
Can't send SMS, they stick with a "Sending" status and wont get past it.
This phone was purchased unlocked without a contract, can't see how the IMEI could be banned, plus we do not have regularization for IMEI ban in my country, it's currently a mess.
On a side note it does not detect the sim's phone number which it does on any other phone.
Maybe it's some hardware related issue?
nitzero said:
Yes I did, flashed the USA unbranded kitkat rom.
Just got the chance to test with two sim cards from different carriers:
Carrier #1: Registered on network, no data traffic, voice call drops just after trying to call, signal ok
Carrier #2: Registered on network, data traffic seems ok but can't navigate, shows H+ and proper APN and traffic arrows activity but when you try a call it says "Mobile Network Not Available"
Can't send SMS, they stick with a "Sending" status and wont get past it.
This phone was purchased unlocked without a contract, can't see how the IMEI could be banned, plus we do not have regularization for IMEI ban in my country, it's currently a mess.
On a side note it does not detect the sim's phone number which it does on any other phone.
Maybe it's some hardware related issue?
Click to expand...
Click to collapse
Well that's interesting
My phone can't detect my Sim's phone number either (though i don't know If it is only for me)
Have you tried to flash a ROM? (from XDA)
Kizoky said:
Well that's interesting
My phone can't detect my Sim's phone number either (though i don't know If it is only for me)
Have you tried to flash a ROM? (from XDA)
Click to expand...
Click to collapse
The sim number information depends on the sim itself, most carriers register this information within the simcard so when you go to status you may retrieve your own phone number but I have seen sim cards without this info. The sim cards I tested do have this information and were available on a Galaxy S5 and Xperia Z1 but this E1 fails to read this information which kinda indicates a problem. I don't remember the codes for debugging the sim and network info or I'd give that a shoot.
I will try a custom rom, maybe a different kernel and see if the behavior changes any bit.
I am bidding on a Z1 Compact for this friend, should be a proper replacement and a hell of an upgrade, just concerned about E1's loudness which is certainly superior.
Interesting, I also get this if I don't reboot my phone after like 5 days.

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