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Guys I am going away with work for four months somewhere which will cost me fortune to use my phone. That said I want to take it with me use it as a tablet of sorts as I have access to wifi.
I know I can turn off mobile data, but can I disable the GSM modem too. Basically I want airplane mode but with wifi enabled. That way there is no chance of any costs been incurred.
Thanks
Don't know if it works for you, but I just tested like this:
- Go to Settings/Wireless & Networks/Mobile networks/Network operators
- Just select an operator different from the sim card you have
Wifi should still work.
I use a free app from market called airplane settings that allows you to select which radios to keep active when turning on airplane mode. It works with latest Runny v4 so should work for you.
Sent from my Inspire 4G using XDA App
Turn on Airplane mode, then turn on WiFi. Wifi should be turned on and gsm is still off
I do what i want, because I can.
Flussen said:
Turn on Airplane mode, then turn on WiFi. Wifi should be turned on and gsm is still off
I do what i want, because I can.
Click to expand...
Click to collapse
Never thought to try that as figured airplane mode would have killed the wifi entirely. It seems to work so thanks!
What about just removing the SIM Card?
Cadocson said:
What about just removing the SIM Card?
Click to expand...
Click to collapse
Would perfer to keep it in, there is the availability to use my phone where I am going, just is very expensive, if need be I can then just turn it back on and make a quick call/send a text. Just dont want it standby all the time with the ability to cost me a fortune to recieve calls!
noisy_lightning said:
Never thought to try that as figured airplane mode would have killed the wifi entirely. It seems to work so thanks!
Click to expand...
Click to collapse
I must than be doing something wrong here. The moment I go into Airplane mode, my WiFi gets turned off and won't turn on untill I disable airplane mode. So what's the catch here.
Sent from my Desire HD using XDA App
What you want is very easy just go to setting> wireless. And then take the mark away by data connection.
And if you want airplane mode with wifi enabled that's easy to: First put airplane mode on and after that switch wifi back on.
Yep, switch to Airplane-Mode and turn on Wifi.
I did that some weeks ago when I went to Israel and gonna do it again when i'll be in England this weekend.
Works like a charme
DN41
Remember to turn off your voicemail (you may have to talk to your provider), or youll be paying international rates for any calls you miss.
Sent from The App that Time Forgot.
JagDave said:
Remember to turn off your voicemail (you may have to talk to your provider), or youll be paying international rates for any calls you miss.
Sent from The App that Time Forgot.
Click to expand...
Click to collapse
Yes indeed or else you will be charged if people speak into your voicemail. Well I already disabled it for a long time, I don't see the use off voicemail, people can better send an e-mail or text message.
DexterMorganNL said:
What you want is very easy just go to setting> wireless. And then take the mark away by data connection.
And if you want airplane mode with wifi enabled that's easy to: First put airplane mode on and after that switch wifi back on.
Click to expand...
Click to collapse
DN41 said:
Yep, switch to Airplane-Mode and turn on Wifi.
I did that some weeks ago when I went to Israel and gonna do it again when i'll be in England this weekend.
Works like a charme
DN41
Click to expand...
Click to collapse
Are you guys running stock ROM's or costom ones.
I tested it yesterday several times, but when I go into Airplane mode, I can enable WiFi but it does not connect to known AccessPoints.
Also does not give me a list of found AccessPoints.
[edit]
Just because I wouldn't instantly disbelieve you guyes I tried it one more time, and a miracle happend.
It connected to the WiFi access point on Airplane mode.
So what you were saying is the correct way
Had forgotten about the voicemail part, thankfully I can phone it myself before i leave and disable it from the options menu so thats easy enough. Will just place a new message on it from me saying I am away and to contact me by email.
Thanks for the help though, I knew you guys would have a solution to this!
*#*#4636#*#*
1. Put *#*#4636#*#* into the Dialer (or use any application available on the Market like 4636 — takes you to the same service screen)
2. Choose Phone Information
3. Press Turn off radio
Thanks
noisy_lightning said:
Never thought to try that as figured airplane mode would have killed the wifi entirely. It seems to work so thanks!
Click to expand...
Click to collapse
Turning ON Airplane and Switching ON WiFi works like a charm.
Thanks..
I know its old thread but good for googlers. Airplane mode will not disable internal modem as you can still see its active under battery details straight red bar = weak or searching for signal. Its draining battery and its still able send/receive data. I read about flashing a script to completely turn it off and cut its power but it shows pie security error in terminal -.- I deleted dialer&related stuff from phone as its only used with VoiP so I can't access service menu. Do you still get red line in battery details and does the modem stays off after a reboot? Some devices you can actually physically remove the modem.
During a recent visit to Korea, I had 0 luck getting a GPS lock, even after using FasterFix to set GPS pools to Korea and Asia, and clearing aGPS each time with GPS Status. I tried stock EL29, stock ICS leaks, AOKP, and CM9. My Toshiba Thrive, however, was able to get a lock without a problem, and my og EVO was always able to get a lock. I can get a lock in airplane mode just fine in the states. Is the E4GT unable to acquire GPS locks outside of the States or is it just Korea? What's everyone else's experience with using GPS outside of the states?
If you had airplane mode on then that is most likely the problem. I experienced the same problem in the UK and New Zealand, for some reason it won't lock in airplane mode. I had limited success with getting a lock with airplane mode off and then turning it back on again, but the only surefire way was to have airplane mode disabled completely. Only downside is a bit higher battery drain as it looks for a non-existent CDMA signal.
perhaps that was the culprit. i always kept it in airplane mode but left wifi and gps turned on. that blows. my thrive and og evo have always been left in airplane mode, so i wonder why samsung doesn't like airplane mode.
I think it is a bug in their radio firmware or system drivers.
I think it is due to either limitation or lazy coding with their use of separate older qualcomm modem/radio subsystem and their own CPU.
I believe if they had more recent pure qualcomm solution and started with qualcomm source base, GPS would work like other phones.
Probably GS3 will have it fixed since it is a pure qualcomm solution.
I was in Korea at the end of March using the EL19 modem and I had no issue what so ever getting an accurate GPS lock. I was able to rome the streets and hillsides only using my phone GPS.
I was activated for voice and data over SK Telecom though. Hope this helps.
The bug we are talking about is GPS won't work with airplane mode enabled.
Why is that considered a bug? I thought the idea behind airplane mode was to shut off all radios that send or receive a signal. No?
Imadroider said:
Why is that considered a bug? I thought the idea behind airplane mode was to shut off all radios that send or receive a signal. No?
Click to expand...
Click to collapse
It is to disable all radios that send.
A passive GPS receiver is not going to affect anything so there is no reason to shut it off.
Other phones' GPS work fine with Airplane mode enabled.
Also user has explicitly enabled GPS in Airplane Mode.
Gotcha. Thanks for the clarification. On a side note, without following all the other threads, are you getting out a fe22 one-click tonight? I wouldn't miss it for the world.
Imadroider said:
Gotcha. Thanks for the clarification. On a side note, without following all the other threads, are you getting out a fe22 one-click tonight? I wouldn't miss it for the world.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1694695
He's always one step ahead of us.
I used my gps hiking today with cardiotrainer in an area with no signal, airplane mode on. Worked perfectly. Was on stock FE07 sfhub one click.
Sent from my SPH-D710 using xda premium
Was it outside the states? i'm able to use my gps in airplane mode when im in the states. i guess i should've specified that in the first post.
Once you get GPS lock, you can usually turn on Airplane mode and GPS will continue to work. It is just that initial lock where it wants to contact A-GPS servers where it often won't get lock unless you have signal. In this situation you should be able to turn on Airplane mode and have the GPS work in total standalone mode.
that makes sense, but if it only needs to contact those agps servers then a wifi connection should suffice, right?
cnstarz said:
that makes sense, but if it only needs to contact those agps servers then a wifi connection should suffice, right?
Click to expand...
Click to collapse
I don't think these are the Google location servers. I believe they are the snaptrack tower-based agps servers (ie you can't connect to them from arbitrary IP addresses anywhere in the world)
If properly configured (by the manufacturer) these phones are supposed to be able to operate in complete standalone GPS mode. The best time to configure that would be in Airplane mode, where it doesn't make sense to do A-GPS. That's how other phones have it configured.
BTW I saw this same type of bug on Palm Treo 800w
do you think there's anyway to port those configurations to the e4gt?
I think there is a bug in the radio. I've configured NVRAM to specify standalone mode and I still can't get it to work in standalone mode. At first I thought I got it to work, but it was only because my USB cable was connected during the reboot. This somehow left the GPS running even after reboot, tricking me into thinking it was working in airplane/standalone mode.
Back in the WinMo days, there were registry entries where we could configure standalone and various assisted modes, but we found some radios just ignored your settings and some followed them.
Many manufacturers have almost zero interest in fixing GPS bugs. If Google maps brings up your location under some situations, they consider GPS working.
**********.
Where I live there is -50 bars of cell service, so when WiFi calling drops it starts searching and absolutely murders my battery life. Is there anyway to hack the system to allow WiFi calling while in airplane mode? I've heard certain phones can do it. Are there any devs on here that have the know how? I know we have some very talented people in the community so I'm hopeful. It seems like it should be pretty easy because while on WiFi calling the cell radios get shut off and WiFi works in airplane mode, so?
I'm just not convinced WiFi calling will ever be more reliable and only getting 9-12 hours on a charge really sucks! Anyways, here's to hoping for a fix!
If you go to WiFi Calling Settings -> Conection Preferences -> WiFi Only.
I think that would do the trick.
Sent from my SGH-T999 using xda app-developers app
^ Tried it out of curiosity because it would be useful to me, but that does not work.
I wonder if it would work if you used a program like Tasker to cut only the cell radios without explicitly entering "airplane mode". Although I'm not 100% sure that is possible or if some other work-around is needed.
Maybe there's something that can be added to the csc feature.xml? Not sure what it'd be but theres already these listed:
<CscFeature_Settings_Airplane_Wifi_Dependency>false</CscFeature_Settings_Airplane_Wifi_Dependency>
CscFeature_Web_Bool_StartWIFISettingInAirplaneMode>false</CscFeature_Web_Bool_StartWIFISettingInAirplaneMode>
You could check other devicrs that have wifi calling and see if theirs is listed. This may not even work, but could be worth a look.
Sent from my SGH-T999 using xda premium
---------- Post added at 05:48 AM ---------- Previous post was at 05:19 AM ----------
Also, there's an app in the store called Bobsled Calling (also a Bobsled Messaging app) listed under T-Mobile top picks. Don't know how good it really is, but I was thinking bout giving it a shot on my old phone that has no cellular service at all.
One of the only ones I've seen where the people you call don't also have to have the app.
Maybe it'll allow you wifi calls under airplane mode?
Sent from my SGH-T999 using xda premium
You can try going to your Phone app and typing in *#*#4636#*#* -> Device information and then hit the 'Turn off radio' button. I used it before when Hurricane Sandy knocked out the cell towers and I was left with just random WiFi hotspots, but this was back on ICS. Though I don't see why it shouldn't work with JB.
If the code doesn't work, go to the Play Store and download an app called 'Phone info' (Author: [email protected]). The app should take you to the Testing menu.
Instead of constantly typing all those numbers (*#*#4636#*#*), download the app, Phone Info in the Play Store and there you go....
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That app doesn't work because when WiFi calling is working the radio is idle. Service menu is a no go.
Sorry I didn't post it as a Q but I didn't have a clear question. I wanted to discuss the topic. I thought about yet where to post it before I did, thanks.
WiFi calling with Cellular Radio turned off
I am trying to accomplish the same thing but was approaching it from a different angle. The service menu idea doesn't work.
We are both trying to accomplish the same thing. Use WiFi calling while having the Cellular radio turned off. Airplane mode turns off all radios and you can re-enable the WiFi radio. However the Galaxy S III will not allow a call to be made while the phone is in airplane mode. This is a low level system issue and not related to the dialer (I tired three different dialers).
Does any body know of a way to do this??? PLEASE??? I'm leaving for Brazil in 4 days for a month and I would like to be able to do this in Brazil.
This is a copy from another posting:
ChitownWingMan said:
I am trying to enable WiFi calling with the cellular radio turned off.
According to Samsung & T-Mobile the only official way to turn of the cellular radio is to enable Airplane mode.
Here is the procedure that I tried:
Enable Airplane Mode
Turn on WiFi
Connect to a functioning WiFi hotspot
Enable WiFi Calling
Wait for the WiFi Calling Icon to appear in the status bar
Make a WiFi call
At this point the dialer sits at the dialing screen for more than 10 minutes (I bailed at 10 minutes). As soon as I abort the dialing attempt a dialog box pops up saying you cannot make a call while in Airplane mode.
Is there any way to completely disable the cellular radio without putting the phone in Airplane Mode?
Is there an app that will do this?
Is there a hidden that will do this?
Please don't use bandwidth by asking why I want to do this or suggesting that I use Skype or some other app. My goal is to be able to make and receive VOIP calls while the cellular radio is completely disabled.
Thank you for your help...
Click to expand...
Click to collapse
I think maybe the phone HAS to ping a cell tower in order to make WiFi calling work. For your purposes just set the WiFi calling connection preference to WiFi only.
psykhotic said:
I think maybe the phone HAS to ping a cell tower in order to make WiFi calling work. For your purposes just set the WiFi calling connection preference to WiFi only.
Click to expand...
Click to collapse
I have zero reception at my house and wifi calling works.
Setting it to "WIFI only" doesn't allow it to work the way that's wanted - it just tells the phone to only make calls over WIFI - but that doesn't open up the ability to do so when the radios are off. From what is described I agree that this sounds like a conflict with the low-level integration.
Did anyone try that Bobsled app I mentioned earlier?
It claims that I could put it on a tablet or my old phone that has no sim/data, and it would work.
If it were to work is that something that could get you by for a while? I understand not wanting to go 3rd party, but it could be the only option for now. It is a tmobile app btw.
Sent from my SGH-T999 using xda premium
I meant for the guy going abroad. Although he needs to also make sure data roaming is off, I think.
Doc I did look but my problem is I want to use my tmo number. I have a house phone but it's really frustrating to tell people they have to try me at two different numbers. And not being able to text.
psykhotic said:
I meant for the guy going abroad. Although he needs to also make sure data roaming is off, I think.
Doc I did look but my problem is I want to use my tmo number. I have a house phone but it's really frustrating to tell people they have to try me at two different numbers. And not being able to text.
Click to expand...
Click to collapse
There's also a Bobsled messaging app. Pretty sure its the same deal and works via wifi.
Also, I could've sworn it said that you have the option of using your current cell number. Maybe I'm mixed up on it...
Anyway, its just a suggestion for looking at. I have no idea how good it really is... just don't have many other ideas for you guys at this point.
I wonder if there could be a build.prop value that would disable cellular only. Or set its scan frequency like you can do for wifi.
Sent from my SGH-T999 using xda premium
What were they thinking
psykhotic said:
I think maybe the phone HAS to ping a cell tower in order to make WiFi calling work. For your purposes just set the WiFi calling connection preference to WiFi only.
Click to expand...
Click to collapse
I have done some more research.
I was able to turn off just my cellular radio by using the phone info application to enter the service menu (Phone Info App->Device Information, scroll down and select Turn off radio).
With the cellular radio turned off I tried to enable Wifi Calling (Settings->More Settings->W-Fi Calling).
The phone says "enabling", turns on the cellular radio (without any messaging saying that it is doing this) and then says "Ready for Calls".
I also tried enabling WiFi Calling first and then turning off the cellular radio (using the method outlined above). But the cellular radio would not turn off as long as WiFi calling is enabled.
I don't know if this is a bug or a "feature" but for WiFi Calling to work on the T-Mobile SGH-T999 (4.0.4 Firmware) the cellular radio must be enabled. Though I'm sure T-Mobile has a reason for this the logic of it escapes me. WiFi calling should not need the cellular radio for any reason. I use Skype all the time and it doesn't need cellular service to operate on WiFi.
If anybody out there knows how I can make and receive phone calls using my regular cell phone number exclusively via WiFi (with the cellular radio disabled) please let me know. Many thanks to the person who figures this out
As long as you are connected to Wi-Fi, with Wi-Fi calling activated (blue icon showing), it should automatically disable the cellular radio. If you are connected to Wi-Fi, but no blue Wi-Fi calling icon, then it will turn on cell radio and start searching for towers.
Sent from my SGH-T999 using xda app-developers app
Lagar said:
As long as you are connected to Wi-Fi, with Wi-Fi calling activated (blue icon showing), it should automatically disable the cellular radio. If you are connected to Wi-Fi, but no blue Wi-Fi calling icon, then it will turn on cell radio and start searching for towers.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Duh.. the reason to use it in airplane mode for me is that WiFi calling disconnects every few minutes and when the cell radio is searching since I have 0 coverage it absolutely kills my battery.
psykhotic said:
Duh.. the reason to use it in airplane mode for me is that WiFi calling disconnects every few minutes and when the cell radio is searching since I have 0 coverage it absolutely kills my battery.
Click to expand...
Click to collapse
Sorry but you're not making any sense. You're complaining about your phone's search for cell towers killing your battery because your Wi-Fi calling keeps disconnecting? Let's say you find a way to disable your cell connection. Your Wi-Fi calling still keeps disconnecting and you still can't receive or place calls. What's the point? Longer lasting "iPod"? Maybe start looking for a way to fix your Wi-Fi calling problem would be a better solution, ie. Flashing a different ROM until you find something more stable. Duh!
Sent from my SGH-T999 using xda app-developers app
Lagar said:
As long as you are connected to Wi-Fi, with Wi-Fi calling activated (blue icon showing), it should automatically disable the cellular radio. If you are connected to Wi-Fi, but no blue Wi-Fi calling icon, then it will turn on cell radio and start searching for towers.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
These are the following options available (all of these options have the cellular radio enabled and working at all times):
1. Make calls using the cellular network only - WiFi Calling disabled.
2. Wi-Fi Preferred - Make calls using WiFi Calling if a valid WiFi network is available and connected. Cellular network calls are made when a WiFi network is not available.
2. WiFi Only - Makes only WiFi calls. Cellular calls are not made when a WiFi network is not available. Note: This does NOT disable the cellular radio.
3. Cellular Preferred - Makes cellular network calls are made if a cellular network is available. WiFi calls are made if a cellular network is not available and a WiFi network is available and connected.
When enabling WiFi Calling the cellular radio is briefly disabled and then re-enabled..
Lagar said:
Sorry but you're not making any sense. You're complaining about your phone's search for cell towers killing your battery because your Wi-Fi calling keeps disconnecting? Let's say you find a way to disable your cell connection. Your Wi-Fi calling still keeps disconnecting and you still can't receive or place calls. What's the point? Longer lasting "iPod"? Maybe start looking for a way to fix your Wi-Fi calling problem would be a better solution, ie. Flashing a different ROM until you find something more stable. Duh!
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I've tried multiple ROMs and multiple routers so.....
My only "solution" would be to not use my phone at all at home and just turn it off. I'd rather have a longer lasting iPod than a paperweight.
The phone is constantly connected to cell towers which can triangulate your location.
Is there some sort of root software which would completely intercept and monitor all traffic between you and cell towers? One that would tell you what is being sent and received? And tell you if the GPS is really off.
What about forcing the phone to connect to only one tower?
Dinger558 said:
The phone is constantly connected to cell towers which can triangulate your location.
Is there some sort of root software which would completely intercept and monitor all traffic between you and cell towers? One that would tell you what is being sent and received? And tell you if the GPS is really off.
What about forcing the phone to connect to only one tower?
Click to expand...
Click to collapse
You could remove the battery. That will solve it.
antonis_sp said:
You could remove the battery. That will solve it.
Click to expand...
Click to collapse
The idea is to have the phone usable...
Monitoring is done mainly by the towers not the phone. Theres no way to stop your carrier from tracking your phones movements around its network.
Your other worries have nothing to do with the carrier. If GPS is off it will show as off unless your phone is compromised, location data will only be sent if you have location reporting on (this does not affect mobile towers from recording device connections).
You could monitor traffic on your phone with something like tcpdump and analyse the data, but a better way would be don't use apps you don't trust.
What exactly are you worried about?
Dubhar said:
Monitoring is done mainly by the towers not the phone. Theres no way to stop your carrier from tracking your phones movements around its network.
Click to expand...
Click to collapse
So the protocol is such that you don't address any particular tower but rather just broadcast and that's how they are able to triangulate you?
What about turning the RF radio off and on without taking out the SIM card, know any app to do that? (Assume that I don't need to take calls only place them. The goal being to minimize tracking/interaction with carrier.)
Also can you explain to me or link me to how this cellular protocol knows where to route calls to you? If there is a keepalive signal how frequently is it transmitted? What if you turn off all broadcast but not the radio itself, will the tower still try to route calls to your last known location and if you are there you would be able to take them?
Dinger558 said:
So the protocol is such that you don't address any particular tower but rather just broadcast and that's how they are able to triangulate you?
What about turning the RF radio off and on without taking out the SIM card, know any app to do that? (Assume that I don't need to take calls only place them. The goal being to minimize tracking/interaction with carrier.)
Also can you explain to me or link me to how this cellular protocol knows where to route calls to you? If there is a keepalive signal how frequently is it transmitted? What if you turn off all broadcast but not the radio itself, will the tower still try to route calls to your last known location and if you are there you would be able to take them?
Click to expand...
Click to collapse
If you turn the radio off it wont connect to a tower but you also cant use your phone.
Theres maybe a little misunderstanding when it comes to how mobile networks work. There no different from computer networks, and just like computer networks mobile networks track where devices are located on the network. It isn't miserableness for malicious reasons, keeping track of where devices are located on the network helps maintain the networks performance and fix problems. The side effect of mobile devices is there are almost always attached to a body and inadvertently allow the potential for a person to be tracked within a margin of error.
When the radio is on (and im not an expert on this) the phone will periodically contact the mobile tower as far as i know, and does this to make sure your connected to the right tower for it to route traffic to your phone or move you to a tower with a better signal.
If your really bothered by it, put it in air plane mode and use wifi only with encrypted calls. But wifi can still be used to approximate a location just like any other means of communication.
It would be good to know your goal? If it is simply to not be tracked your _only_ option is to not use a mobile phone. People do that, for that exact reason.
Dubhar said:
If you turn the radio off it wont connect to a tower but you also cant use your phone.
Click to expand...
Click to collapse
By not use it do you mean it won't even boot properly or I simply won't be able to place or receive calls?
If the latter, I would still like to know how. Is there an app for that?
Dinger558 said:
By not use it do you mean it won't even boot properly or I simply won't be able to place or receive calls?
If the former, I would still like to know how. Is there an app for that?
Click to expand...
Click to collapse
Put it in airplane mode. By not use I mean no phone calls or internet.
Dubhar said:
Put it in airplane mode. By not use I mean no phone calls or internet.
Click to expand...
Click to collapse
Airplane mode disables WiFi as well, this won't do.
Surely there is a root app that can toggle the cellular RF radio?
Dinger558 said:
Airplane mode disables WiFi as well, this won't do.
Surely there is a root app that can toggle the cellular RF radio?
Click to expand...
Click to collapse
You can turn on wifi after you put airplane mode on, but it defeats the purpose. You can be tracked via wifi.
Non of this also considers if the phone is compromised or if it collects data and sends it once it is connected.
Dubhar said:
You can turn on wifi after you put airplane mode on, but it defeats the purpose. You can be tracked via wifi.
Non of this also considers if the phone is compromised or if it collects data and sends it once it is connected.
Click to expand...
Click to collapse
WiFi tracking is impractical. I'm only interested in disabling the cellular network unless I want to place calls.
Dinger558 said:
WiFi tracking is impractical. I'm only interested in disabling the cellular network unless I want to place calls.
Click to expand...
Click to collapse
Actually WiFi can be even more beneficial. It's not dependant on the phone network meaning the tracking information can be sent anywhere in the world, you can send more information than just mobile tower beacons, tracking data can be recorded and sent later when a connection is made either though WiFi or mobile data. Its not dependant on your phone either, your phone sends out a WiFi beacon periodically looking for wireless networks, any WiFi AP within range will pick up this broadcast from your phone and potentially record it ( it is identifiable), additionally your phone broadcasts all WiFi APs you've connected to to see if it can reconnect to them, these can be recorded and used to predict and track movements as well.
You still haven't said what the purpose of this is and im starting to think your just trolling. Turning off the mobile radio is practically pointless if you're connected by any other means.
is is possible to remove all phone functions from a sprint epic touch 4g? i am using it as an ipod and when it switches cell towers it is causing screen mirroring to break. id like to remove all possiblities of it connecting to cell towers, either by flashing a modified radio, or removing system apps, or flashing a rom that supports mhl but does not support phone features.
would flashing an ATT rom or something like that be possible?
jamissr said:
is is possible to remove all phone functions from a sprint epic touch 4g? i am using it as an ipod and when it switches cell towers it is causing screen mirroring to break. id like to remove all possiblities of it connecting to cell towers, either by flashing a modified radio, or removing system apps, or flashing a rom that supports mhl but does not support phone features.
would flashing an ATT rom or something like that be possible?
Click to expand...
Click to collapse
Yeah DO NOT flash an ATT ROM because you more than will hard brick your phone permanently. What's wrong with airplane mode?
Surj138 said:
...What's wrong with airplane mode?
Click to expand...
Click to collapse
Yeah, he's right. Doing the flashing thing is like you wanna destroy your phone reception completely.
Sent from my Lenovo A850 using XDA Free mobile app
Surj138 said:
Yeah DO NOT flash an ATT ROM because you more than will hard brick your phone permanently. What's wrong with airplane mode?
Click to expand...
Click to collapse
i need wifi and bluetooth to work, just not cellular.
jamissr said:
i need wifi and bluetooth to work, just not cellular.
Click to expand...
Click to collapse
I'm on airplane mode and WiFi as I type this
With Airplane mode on, you can manually turn on Wifi, Bluetooth and GPS. All settings will stick even after reboot. I no longer use my E4GT as a phone, its always set to airplane mode since theres no need to connect to cell towers any more.