Even without a SIM card, my phone detects cell towers and it leaks its IMEI number. Is there an app or a script or a mod (Pixel "Sailfish" here) that turns off Cell Radio entirely? Airplane mode supposedly does it, but it is unknown if it actually does it all the way...
Related
Hey all.
I think this might be a general problem with Android, but before someone scolds me for posting in the wrong place, I'm trying it here first.
I own two SIM cards... one I use regularly, the other that I only use to go online. I use APNdroid (well, actually Elixir, but the method of operation is the same) to prevent my usual and expensive SIM card from connecting to the internet. However, when swapping one SIM card for the other, the phone goes online either way.
- SIM1 is in the phone, APNdroid has data disabled
- I turn off the phone, insert SIM2
- After using SIM2, I switch back to SIM1
- When the phone has started up, SIM1 goes online immediately, despite the APN setting having been wrong before using SIM2.
Is there any way I can stop this from happening? Going online with SIM1 costs me a fortune and going into settings to disable data through Android is quite tedious.
Cheers
Here's the deal, I bought my Rezound in 2012 and flashed it to PagePlus Cellular using CDMA WS.
I've used it and it's been fine, running CM10 most of the time. I just bought a Evo 4G LTE and switched to that. So I RUU'd my Rezound, and it says a SIM card is required, etc.. but there are no signal bars.
I go into About Phone > Network >
and Operater name is "Unknown," signal strength is "0", service state is "out of service."
Now, the question is, is that normal? Does the phone need a sim card to connect to verizon towers?
I don't want to sell it while it's not working. I did call up Verizon and they said the ESN was clear for activation though.
So if I sell it and the new user puts in a SIM card, will it clear up all the signal issues? Or have I done the RUU incorrectly? [I did it a couple times because it didn't work the first time (the SD card method, then I did fastboot method)]
Thank you!
That is not normal behavior and you may need to do some more work before you sell it.
Make sure all related network settings are correct for Verizon instead of GSM under Settings > Mobile Network menu.
Try entering on the stock dialer *#*#4636#*#* to access the hidden testing menu as well for the phone radio and verify it is on CDMA. If that code doesn't work on the dialer try it via an app like "Hidden Menus" or even "Battery Monitor Widget" by 3C (click "Tests" icon > Phone information from main page of app.)
Background: I broke off of my Verizon contract six months in and used my phone as a WiFi-only device (VoIP and internet texting apps) for the longest time. While I typically hid my signal icon and ran the phone in Airplane mode with WiFi toggled back on, I would occasionally turn my radio on to resync time and date to the cellular network. With no SIM in it clearly was syncing off Verizon CDMA signal still; I simply wasn't fully activated on the network any longer.
I just made the StraightTalk AT&T SIM card plunge the past couple of weeks and did an NV edit in CDMA WS as well, all alright on GSM. I am on the stock global ICS ROM at the moment, one I know could sync time on CDMA before. However, I cannot get the phone to switch off of GSM even in the hidden testing menu, even without SIM in... Likely has to do with the NV edits I made, and perhaps that may be your case too.
You *could* repurpose the sale as a GSM enabled unit... If it was even set up and working well as such. But due to the current technical issues of getting GSM mobile data above 2G I'd suggest to get it fixed and working back on stock CDMA for the consumer's sake if you can. Again AFAIK It should pick up a CDMA signal even without active service or the Verizon LTE SIM in, did so for over a year lol.
PhantasmRezound said:
That is not normal behavior and you may need to do some more work before you sell it.
Make sure all related network settings are correct for Verizon instead of GSM under Settings > Mobile Network menu.
Try entering on the stock dialer *#*#4636#*#* to access the hidden testing menu as well for the phone radio and verify it is on CDMA. If that code doesn't work on the dialer try it via an app like "Hidden Menus" or even "Battery Monitor Widget" by 3C (click "Tests" icon > Phone information from main page of app.)
Background: I broke off of my Verizon contract six months in and used my phone as a WiFi-only device (VoIP and internet texting apps) for the longest time. While I typically hid my signal icon and ran the phone in Airplane mode with WiFi toggled back on, I would occasionally turn my radio on to resync time and date to the cellular network. With no SIM in it clearly was syncing off Verizon CDMA signal still; I simply wasn't fully activated on the network any longer.
I just made the StraightTalk AT&T SIM card plunge the past couple of weeks and did an NV edit in CDMA WS as well, all alright on GSM. I am on the stock global ICS ROM at the moment, one I know could sync time on CDMA before. However, I cannot get the phone to switch off of GSM even in the hidden testing menu, even without SIM in... Likely has to do with the NV edits I made, and perhaps that may be your case too.
You *could* repurpose the sale as a GSM enabled unit... If it was even set up and working well as such. But due to the current technical issues of getting GSM mobile data above 2G I'd suggest to get it fixed and working back on stock CDMA for the consumer's sake if you can. Again AFAIK It should pick up a CDMA signal even without active service or the Verizon LTE SIM in, did so for over a year lol.
Click to expand...
Click to collapse
in the mobile network, I have it set to "CDMA / LTE" but I tried "CDMA only" and "Global" but none worked.
*#*#4636#*#* didn't work in stock dialer, it just disappeared when I finished typing it.
then I downloaded Hidden Menu, found *#*#4636#*#* in the list, tapped it, and it did nothing. I did some other ones and they did do something. I found htc diag mode, the same one I used to program it originally. I clicked read, and the phone number and min were blank. so I went to the prl and tried flashing a verizon prl file, then rebooted, and still nothing.
I'm going to try to RUU again and hope that solves it.
Update
I RUU'ed again, but still no luck..
Can anyone confirm whether or not, say you got a Rezound out of the box never activated, would you need a SIM card to get the signal initiated? I'm thinking either that's the case and my phone just needs a sim card to jump start it, or my rezound is toast.
phone says no sim card and i don't have data, still able to use sms and phone calls when I'm around wifi even if wifi is turned off. In settings/status under service state it says voice: in service / Data: in service. Under cellular network state it says disconnected. It recognizes my network: sprint and my cellular network type : lte and my phone number as long as I'm around wifi even if it's turned off. As soon as I get out of range for wifi all of that data in settings/status is "unknown" until i find wifi again and reboot. Was told to call the carrier and get a PIN to unlock my sim card but it didn't work. Any help please?
Since you're in the Sprint forum, and there's no official Sprint Lollipop ROM, I assume you're running an unofficial AOSP ROM. If so, the traditional sprint fixes (update profile / PRL, for example) won't work. If you have a nandroid of an official Sprint ROM, you might try restoring to that, updating Profile & PRL, enter ##72786# in the dialer (the phone will reboot a couple of times--that's normal) and then reinstall the AOSP ROM.
That may not help, so I'd suggest asking in the thread for the ROM you're running.
Greetings all, in need of help,
My moto g2 says "error while searching for networks". I dialed *#*#4636#*#* and went into phone information and it says "GSM service: Radio off". I scrolled down and tapped turn on radio but the radio wouldn't turn on, how do i fix this?
what did you do with your phone before this matter happened?
You should take the sim out, enable flight mode, and reboot again, then disable flight mode and insert sim again.
hope this helps, or else there may be some problem with your sim (broken sim? you can take your sim you and check it again with other phones)
I have a SCH-i605 on Straight Talk network using Verizon towers. It's rooted and running Bean's rom. For the past month or so, I cannot use internet with WiFi turned off or out of range. It's offline. In settings data is turned on. Airplane mode is not. Yet when I go to about phone/status/Mobile network state, it says disconnected whether WiFi is on or not. Straight Talk tech had me change APN settings which didn't help, then said it has to be the sim card. It's the same with the new sim card. Does anyone know what's causing this?