Related
Hi,
I purchased the latest version of AntonTomov's PocketMechanic via Handango and received the registration key immediately after finished purchase procedure.
Installation on my TyTN seemed to work out first (the program accepted the key with a message box and a sound).
But only moments later a message box popped up, telling me I use a pirated version and should turn to the manufacturer, which I did (also mailed Handango).
Meanwhile tried to install PM several times (always removing all traces from both PC and TyTn incl. Registry and rebooted) - to no avail.
Meanwhile received a new serial, but same story again: first accepted and immediately afterwards aborted with Piracy message.
A new complaint mail is on ist way.
Meanwhile I'm asking here if anybody had similar problems in getting the Pocket Mechanics to work on a TyTN.
Appreciating feedback and will let te community know how it worked out for me.
I would not use or buy Tomov's products out of principal.
Found a lot of threads about earlier version doing a hard reset without asking, when inputted a "pirated" serial. So be glad it only shows a box nowdays.
While software piracy is not a good thing, at least for people developing propietary software. Tomov has used a bit too drastic measures to fight
back.
jeezus said:
I would not use or buy Tomov's products out of principal.
Found a lot of threads about earlier version doing a hard reset without asking, when inputted a "pirated" serial. So be glad it only shows a box nowdays.
While software piracy is not a good thing, at least for people developing propietary software. Tomov has used a bit too drastic measures to fight
back.
Click to expand...
Click to collapse
This does not make me too comfortable :-(
I also read a few note about that on the net and a reply by Tomov, complaining that this is not true and only a campaign to cut him off his revenues.
Well, I do not know what to believe, however this uncertainty is also not too comfortable...
Well the Pocket Mechanic way of uses some hardware dependent functions and - if you dare to take use of such - you have to either be very careful and also prepared that they might not work on untested and after all very new (such as the TyTN) devices.
I was prepared for all of that but not that I receive a piracy mail (which somewhat alsmost accuses you of being a software pirate and telling you to mail to [email protected]) when I purchased the software (which I can also prove).
Maybe he uses some hardware related mechanism to check eligibility of the serial and as he hasn't tested yet the TyTN (which he admits) this software won't allow being registered at all. I do not know.
But isn't such a meachanism pure over-kill ?
Actually something like that must be going on as I receive this pop up also after a new install and having purged all remnants from the PC, the PDA and the registry.
If I'd be trying out serials just at random, would anyone think that I'll millions of times do that complete procedure just to find any working key at the end of my life maybe ???
(And if I'd be a professional hacker I'd disassemble the code and be able to work around even these barriers.)
So, applying over-kill measures like that only brings problems to decent users, risking to run into problems when using special configurations or ne devices.
+++
Apart from that I must say that Tomov's applications seem well coded and also graphically very nice (one wonders how graphically nice application you can program for PDAs; shame upon Microsoft for their pre-installed poor applications !!!).
Also I see no real alternatives for some functionality he provided within one software, that's why I purchased the PM.
Finally again my question:
Has anyone encountered the same problems with the PM on a HTC TyTN ?
(btw: Thanks "jeezus" for your feedback.)
Might I inquire which funktionality you need?
Maybe we can find an alternative solution.
I'm been working on this for a little bit now since I found all the existing apps don't work well in WM6 or don't work well in a custom rom. This is a open source program (as all of mine are) and I welcome help/donations/and comments. Bug reports will be helpful in this first release as I certainly consider this a alpha release at the moment.
What it does:
once setup at every boot it compares your IMSI number with the one stored, if it's a match it plays a little sound and that's it. If it's not a match, it locks the device and displays your email and a request to please get it back to you. It also send you the "new sim's" imsi and phone number via a SMS.
------------------------------
SecurIt 1.1 (BETA) by Shadowmite
------------------------------
TODO: Build in SMS rule filtering thus adding remote control
Lock out activesync connections?
Protect the datafile from being deleted, or keep a backup in registry.
NOTE: THIS DOES NOT WORK WITH CDMA PHONES!
Version 1 (BETA) Instructions:
This security applicatioon can run loaded normally via a cab file to your device, or via being cooked into a rom. It will require your phone able to run unsigned code (most roms at this site are fine in this regard). Furthermore it does require the .NET Framework so it's really for WM6 devices, WM5 will be more tricky and is left up to the user to figure out how to make it all work.
When first run the program resides in \windows and must run from there. If you ran the cab installer it will have created a shortcut for you into the Programs folder.
The application comes up with a form showing you the current device imei, imsi, and phone number. You need to enter a password (needed to disable security programmatically or change SIM info), a email you can be reached at my a "finder" of your phone, and a SMS phone number you'd like alert messages sent to. Once done click set. Finally, click Enable security.
The application then sets itself up to autorun upon boot and if the SIM matches, it plays a little sound file to let you know everything is fine. If the sim is found to have changed, it will lock down the device until a password is entered. Meanwhile it shows your contact email and has sent the alert sms to you with the new imsi and phone number.
If you enter the proper password the program will take you to the settings screen where you can reenter the password and make changes to the settings and resave them. Simply clicking enable security without making changes will keep the settings as they are.
Clicking disable security will remove the autorun entries and remove the data file the programs keeps at \windows\SecurIt.dat.
The data file keeps 5 lines, MD5 hashes of your imei, imsi, password, and also your email and sms phone number as plain text. Thus stealing this file does not enable retrieving the password or easy changing of the imsi. Deleting this file however would remove security. Furthermore activesync will still link to a locked device. Knowledgable people about these devices could therefore defeat this security, however it's goal is to keep the casual theif / finder out of the phone.
This program is a work in progress and I welcome help with modifications to it as well as bug fixes. Source can be found at:
svn://www.shadowmite.com/shadowmite/SecurIt
To cook this into a rom, you need 3 files. 2 of them need to be generated when you first install it like normal and set it up. Copy the SecurIt.dat from \windows and the SecurIt.lnk from \windows\start up to your rom as well as the SecurIt.exe file. It's that simple. Enjoy!
History:
1.1: Fixed all kinds of bugs causing security to crash with various sims
1.0: Initial release
If you like my work and would like to help insure I continue to have time for this, please consider a donation to: foglemATshadowmiteDOTcom
Shadowmite, thnx for starting an "opensource" project for this. I havent tried it yet, will try once I reach home.. But I had a cpl of suggestions\questions:
1. Why do u keep email and sms phone no in plain text instead of encrypting them as well?
2. Instead of storing config in a file, store the config in registry which lessens the chances of someone finding out about the prog and deleting the file to disable security.
nice work as usual...
shantzg001 said:
Shadowmite, thnx for starting an "opensource" project for this. I havent tried it yet, will try once I reach home.. But I had a cpl of suggestions\questions:
1. Why do u keep email and sms phone no in plain text instead of encrypting them as well?
2. Instead of storing config in a file, store the config in registry which lessens the chances of someone finding out about the prog and deleting the file to disable security.
Click to expand...
Click to collapse
number 2 is in the TODO list...
#1) we could encrypt them as long as it's not a one-way hash like the first 3 lines, however those are the bits of data we don't mind the theif/finder seeing afterall as they are the means to get the phone back to its rightful owner. I suppose we could hide them but the phone number will be on his next bill for sending it a SMS and the email is displayed on the locked screen.
And as walshy said, #2 is certainly on the todo, but locking our activesync connections is a bigger concern and I believe completely doable.
#1) we could encrypt them as long as it's not a one-way hash like the first 3 lines, however those are the bits of data we don't mind the theif/finder seeing afterall as they are the means to get the phone back to its rightful owner. I suppose we could hide them but the phone number will be on his next bill for sending it a SMS and the email is displayed on the locked screen.
And as walshy said, #2 is certainly on the todo, but locking our activesync connections is a bigger concern and I believe completely doable.
Click to expand...
Click to collapse
ok, and sorry abt the #2, I missed the TODO part..
Keep up the good work..I myself was thinking abt making smthing similar but now I think I'll drop my idea to make a different one, as this seems to be a better idea (opensource is always better )..
I hope I can make some contribution to the code if possible..
shantzg001 said:
ok, and sorry abt the #2, I missed the TODO part..
Keep up the good work..I myself was thinking abt making smthing similar but now I think I'll drop my idea to make a different one, as this seems to be a better idea (opensource is always better )..
I hope I can make some contribution to the code if possible..
Click to expand...
Click to collapse
What advantages does this give over "Mobile Justice"..another similar util...my rom has Mobile Justice cooked with it which makes it hard to remove.
famewolf said:
What advantages does this give over "Mobile Justice"..another similar util...my rom has Mobile Justice cooked with it which makes it hard to remove.
Click to expand...
Click to collapse
If you like that software and have it working properly use it. Maybe you'd like to post in every rom thread asking why not use some other rom while you're at it?
Shadowmite said:
If you like that software and have it working properly use it. Maybe you'd like to post in every rom thread asking why not use some other rom while you're at it?
Click to expand...
Click to collapse
I'm not using Mobile Justice which is WHY I asked what advantages YOURS had over theres for COMPARISON. If it had additional features I was going to recommend it for addition into XM6R3 (the next release of the current rom), but with an attitude like yours I won't bother with further review.
famewolf said:
I'm not using Mobile Justice which is WHY I asked what advantages YOURS had over theres for COMPARISON. If it had additional features I was going to recommend it for addition into XM6R3 (the next release of the current rom), but with an attitude like yours I won't bother with further review.
Click to expand...
Click to collapse
you dont bother with a review but bother with a slagging ... take your "fame" somewhere else...
Ok, for starters mine isn't based on assuming every device has a GPS built in (while technically being a Trinity owner I should go that route). I instead base mine on nicely locking down the interface so far with a polite message to get the device back to the owner. Furthermore mine is trivial to build into a cooked rom which was my main reason to write it. I tried every security app out there over the last weekend without any of them working "properly" and figured the best way to get one is to write one. In addition mine is open source, mobilejustice is not.
Now then, you said you're not using it... But the last post said you had it cooked in? WTF? Need some help deciding what you use and don't use?
my rom has Mobile Justice cooked with it which makes it hard to remove.
Click to expand...
Click to collapse
I'm not using Mobile Justice which is WHY I asked what advantages YOURS had over theres for COMPARISON.
Click to expand...
Click to collapse
Shadowmite said:
Now then, you said you're not using it... But the last post said you had it cooked in? WTF? Need some help deciding what you use and don't use?
Click to expand...
Click to collapse
1) The rom I currently have installed comes with Mobile Justice preinstalled.
2) I have not configured and am not currently using Mobile Justice
3) The author is currently taking suggestions for software to include in the next revision of their rom.
What part of any of those statements are you having difficulty comprehending?
Perhaps you and the gentleman from Melbourne should both grow up and quit reading an insult where one was not intended.
Well than back on track... Give it a try and see what you think. I really want feedback from folks outside the USA as I believe it will not properly catch your phone number of the "thief's sim" however if the sms works it should still get the phone number to you obviously.
The GPS coord. request feature is a nice one and will have to go on the todo list.
well, well, fights apart, what drew me to this app over the other apps was the opensource nature as mentioned by Shadowmite because I, like shadowmite, was not happy with the other apps doing things properly or just because I wanted somethings to be done differently..
@shadowmite:
1. I have a few ideas of getting "coordinates" and sending to the original owner even on non-GPS devices ..Maybe we can discuss some things later on once the basic structure of the app is ok.
2. Couldn't find the source code of the app on ur site..(May be am just one dim-witted dim-sighted git ) Please point me to it..
You'll need svn to get it, windows users: http://superb-west.dl.sourceforge.n...vn/TortoiseSVN-1.4.4.9706-win32-svn-1.4.4.msi
svn://www.shadowmite.com/shadowmite is my master repository for all projects.
cool, I do have TortoiseSVN installed at home..Will check it when I go back..
Will it sustain a hard re-set ? Dont think so.
@shailesh, for sustaining hard resets, it has to be cooked into the rom, pointed out by shadow on post 1..
I don't know if something else can be done for this (writing into ext rom is one option but that is not possible for most devices now)
Sounds like a great piece of software. And open source is a great idea too.
I did tried several others like this one (Eye on the thef, Ultimately Theft Alert ...) some features were still missing :
First an autoconfig method :
As already said, whatever your storage methode is (file or registry), you 'll everytime lose the configuration when a hard-reset is done on the device. The only one possibility i can imagine is to store your "installer" program on extended rom with the ability to add an external config (encrypted) file as a parameter.
Installation will be handled by the autoconfig process, using this external file. Config will probably needs to be stored on extended rom too. It's not peace of cake to create an extended rom, but easier that cook a rom.
This feature won't be very helpfull if there is no way to generate a config file automaticaly base on settings done by user : kind of export process.
On standart start/soft-reset, your program will run as it does actually, but when a hard-reset, is proceed, programm will reinstall unattented and will still be running after boot... No way to easily remove it. Bad effect is that it will also be difficult to update programm/config.
Secondly, i'd like to have the a way to "format"(or encrypt) a memory card remotely.
Do you thinks those could be part of your TODO list ?
Will try it on few next days and i'm ready to help you translating it in french
hi shantzg001,
thanks for replying,
My mistake, did not read the whole text.
Hi,
I asked this question over on another mobile phone forum and a user directed me here, so here goes:
Is it necessary for apps developed for Windows Mobile 5 and 6 (PPC) to be "signed" in any way in order to be installed and run? Similar to the way newer Symbian OS apps must be signed? Or can they just be developed and flat-out installed without any hassle or complication, the same way apps for regular desktop Windows PC's can be?
As a programmer/developer and also a Symbian user, I absolutely HATE the need for signing or certifying anything for it to be able to run. If it's not necessary on a laptop or desktop, it shouldn't be necessary on a phone. I am considering switching over from Symbian to WM6, but ONLY if the platform is completely free of the need for anything resembling certificates and signing.
At the very least, is there the option for the end WM6/5 user to easily change a setting within the OS so as to allow the full installation of non-signed apps? I'd settle for that. With Symbian, both developers and users are completely imprisoned by certificates and cannot do anything without the permission of the OS fascists.
Thanks for any help on this..
on WM5 default, when you try and uninstall something unsigned, you just have to tap the "yes" button to run the application, after that it remembers it for that app.
so basically for my setup (wm5/wm6) i can run anything, signed or unsigned. And there is a fix somewhere to disable the notification warning
hope that helps
and
come to the light side
Pocket PC's for the win
Thanks for your reply.. it's certainly encouraging to hear that WM5/6 is not restricted by the absolute necessity for signed certificates like Symbian is. As a programmer I completely refuse to bother developing software for a platform that handcuffs both developer and end user so mercilessly. If I can write programs in Visual Basic that will comple to an EXE and run hassle-free on any Windows PC, I don't see why I should have any less freedom when writing programs for a mobile device.
SymbianSigned and its locked OS is a deal-breaker for me. In looking through this forum though, it seems that there are in fact some components of WM that absolutely must be signed to be installed? Like skins for example? Are there any other components that fall into that category?
Still hoping to get a defnitive answer on what components of WM require mandatory signing and which ones are totally non-restrictive optional. So far my understanding is that under no circumstances do any applications ever have to be signed in order to be installed and run, no matter what kind of advanced access and functions they involve. Correct? Whereas fully integrated keyboard skins do need to be signed, for some reason. Correct?
Any other categories not covered above that do or don't require signing?
Thanks!
As far as I know the worse case scenario for signing is that you must also install your own cert. All that happens when you do this is again a warning.
As for the merits of the whole signing thing. Although I agree symbian goes too far, I think some kind of signing procedure, that is more robust should be required for windows mobile.
My preferred solution would be to have restricted functions that on install warn the user of exactly what capabilities the SW has, and allows the user to allow or restrict certain capabilities.
Simply an I trust this or that is useless as everyone ends up trusting everything as you have little choice. But given that it is easy to write SW using the RIL functions that completely unknown to the user can call expensive pay lines, download ridiculous amounts of data over gprs, or even send me personal information from your device, some security should definitely be required.
The truth is because of the ability to make expensive phone calls directly to people who will have direct financial benefit, I would argue security for a phone is at least if not more important than on the PC.
my 2 cents
WM5/WM6 editions for touch-screen devices generally come with "relaxed" security which means that third party apps don't have to be signed to execute once somebody answers yes to a first-time warning dialog box. ROM cookers here generally relax this requirement even more by setting a registry value HKLM\Security\Policies\Policies\0000101A to a 1. This disables the first-time warning message also.
However, services and device drivers generally need to be signed because they are executed before these relaxed settings take effect. Application developers generally can work around this too by starting the service/device driver themselves with a little program placed in \windows\startup
WM6/WM5 editions for devices without touch-screens generally have a higher security setting that disallows execution of any application unless it is signed.
Edited: Contact mod.
For $1k I'd buy JTAG and do it . And keep the rest (RIFF BOX is 119€ and a bit of soldering/getting board for another 10€ to avoid soldering).
Haha, this reward smells like scam
mysymbol said:
Hello
Can someone tell me if it posible to replace/change just one character in Rom in Windows Mobile 5 Device, knowing where it is (memory address)
Device is not listed anywhere on this forum, and really it does not matter, since it runs Windows Mobile 5 and I can connect to it with ActiveSync (USB or Serial)
Willing to pay $1000 for solution.
Honestly, will paypal the money to someone that can help
Thanks
Click to expand...
Click to collapse
Why would you pay $1000 for a solution for a Windows Mobile 5 phone when you can get a Windows Mobile 6.1/6.5/WP7 phone for HALF the price.
Response to your concerns
This is not a Mobile Phone and I do not have one but several thousands of these in my posetion. Again this device is very rare and you will not find it anywhere. Solution to my problem can be used over and over again.
Simply its just like a phone running Windows Mobile 5 and I just need to change few lines of memory addresses in ROM. Please help.
For those that think its a scam, fine, I will offer $10 for solution, but for someone that can believe I will paypal $1000 instantly upon working solution.
I would agree with JTAG but I have several thousands of these in my hand and I need faster solution. Please help. I can run any files, commands for you on my device and provide results. Thanks again
You might want to try also itsutils's app "pdocwrite", that might do the job too. Or psetmem, if it is in RAM and not ROM.
wouldnt Jtag be just as quick as connecting a phone to a computer... booting into the rom, changing code etc etc etc? over and over and over again?
That said... Your best bet is to send one of these "devices" to a developer on here who can take the rom and make the changes that need to be done and make a custom rom for you.
Thats my two cents!
You are a little silent on the details of what you want to change in the device. There is hardly a universal solution for the task you have sketched. Let me outline the levels of security that have to be passed:
Running programs e.g. for manipulating memory (RAM or ROM) may in the first place be restricted by OS security (policy). This must be overcome and is also know as "Application Unlocking" of the device.
Some files on a device can simply be replaced by RAM copies and those will take the function of the ROM part after copied to the device and a subsequent reboot.
If really the ROM itself must be changed (as 2. does not work) then you have to be able to read out the ROM, dis- and re- assemble its parts (aka "cooking") and finally load back the results to the device. Several security mechanisms are in place for devices to ensure that only the legitimate authorities can do this.
Thanks to joint efforts et XDA-developers many popular devices could be hacked at that level to foster the popular cooking activities.
So if you give some more hints on what character you want to have changed and where you see it (but want to see a different one) then even other options may come up, e.g. changing data in the databases that are use for translating user interface parts (control panel), other data-driven options (e.g. registry) and so on.
So in the end there may be a much simpler solution to your problem that you thought about so far?
are these some chinese knockoff model and you need to change something to sell them on without non chinese people having problems? i would help but got rid of my chinese to english rom hardware last year
reward still availble
can someone help? I can read files from ROM, but how to write back? utility is there but its uncompiled.
I don't think you've made enough threads on this issue. I think you should post 5,6,7 maybe even 8 more and see if someone responds...
what device are u meaning to change?
Thread closed, contact me to talk about the thread.
I am using a phone that has a Windows 6.5 operating system on it.
I wish to disable all the features on my phone other than GPRS connectivity,Wifi connectivity and Camera features.i.e.I shouldnt be able to make or receive calls,text anyone,play games,or use any other default feature.
Either it must be completely disabled or i should be able to give so kind of password protection to these features.
Please help me at the earliest,i require it for a project completion,and i am not able to figure it out as how this can be done.
Thank You in advance
i dont know whether this is the right place to post as i am a new user,so i am extremely sorry if i have made a mistake.
You should get a SIM card that only supports data access for your project. This will prevent any circuit switched (i.e. voice) features and linked services like SMS. There are also options to activate call barring features for a normal SIM (so you can steer what is allowed or not) - but his is then again part of the SIM card subscription (and can be used on any phone likewise).
There are no default options which could cripple your device in such way as you have asked for.
How to make changes in security policy of Windows Mobile 6.5 Professional?
i was browsing through the net and i found this matter:
4102
Unsigned Applications Policy
SECPOLICY_UNSIGNEDAPPS
This setting indicates whether unsigned applications are allowed to run on Windows Mobile devices. If a signed application does not have a matching root certificate in the Privileged Execution Trust Authorities or the Unprivileged Execution Trust Authorities certificate store, the application is unsigned.
You should always use SECPOLICY_UNSIGNEDCABS together with SECPOLICY_UNSIGNEDAPPS policy. This means that when you block unsigned applications from running, you should also block unsigned cab files from getting installed on the device.
Default value is 1 for Windows Mobile.
The following list shows the possible values:
0 indicates that unsigned applications are not allowed to run on the device.
1 indicates that unsigned applications are allowed to run on the device.
Any value other than 1 is treated as 0.
The required role to modify this policy is SECROLE_MANAGER.
i think this will help me as i can make the applications that i dont need as unsigned applications and then make it 0 which will serve my purpose...but i have no clue how to make these changes in my mobile..
Can u please help me with this???
the solution that is given wont work for me because if anyone changes the sim then the settings i require will change and thus the solution is not full proof. i also dont know i will get any sim dat only offers data transfer.
thank you for the quick reply and i am expecting the same in future too!!
Thanks in advance
Regards,
Sneha
Let me write you this last reply to your query, please do not expect any further from my side.
This forum deals with understanding restrictions and enabling previously hidden or restricted functions mainly - learning from each other's experience.
The subforum you have chosen (chef central) deals with understanding how the Operating System is constructed from packages and how these can be recombined to new (cooked) ROMs.
There is no intention to cripple the existing functions of the operating system itself or to restrict the Radio part of it in any way.
You may think that the snippet you took from a MSDN page delivers something you could use for your purpose (which you have not outlined) without understanding the security concept of Windows Mobile. This is quite complex and often (for simplicity) simply disabled completely on several levels - so no security either for whatever you want to do.
The existing packages of the OS do not have separate components that you could omit to disable your desired functions.
Even if so, these core packages of the OS are usually delivered as modules (another special concept of Windows CE/Mobile) that do not need any security or signing - so they run anyway without restrictions.
So finally good luck with whatever you want to do, but I believe that you cannot achieve this with a crippled Windows Mobile - at least not fool proof.
Hello Sneha,
Welcome to the forums.
Unsigned Applications Policy is totally different then what you are looking for. More info here. When enabled, you will be allowed to install or run unsigned aka untrusted apps.
But the inside apps or features are already signed so you cannot stop them from running by enabling or disabling Unsigned Applications Policy.
The really thing you need is to make a custom ROM, remove all the unnecessary things and flash it to your device(s). That means you should change/modify the built in OS (in a simple word) but you cannot do within the device
However, its not a day, week or even a month task. It takes many months to learn things and then you can finally do it. I'm 99% sure that all of your needs can be fully filled but :
1. Takes many months to learn.
2. You need to get the stock ROM, Modify and flash to the device.
BTW; which device you really have?
Thanks...
Best Regards
Closed environment is something that should be done in bsp: kernel to be precise. Also it is possible via custom certmod.dll.
BUT. Little problems:
1) no bsp sources unless you're OEM
2) no certmod.dll sources.
Please look at the initial request on the restriction of radio features. This is handled in the radio layer and this cannot be cut in pieces. So there are no components to sign/restrict/omit for that query.
Cooking can do a lot, but it does not go inside one component.
Cutting all other things may be feasible - but not for radio relevant parts imho.
tobbbie said:
Please look at the initial request on the restriction of radio features. This is handled in the radio layer and this cannot be cut in pieces. So there are no components to sign/restrict/omit for that query.
Cooking can do a lot, but it does not go inside one component.
Cutting all other things may be feasible - but not for radio relevant parts imho.
Click to expand...
Click to collapse
Of courses its a lot of work but its possible. Within the OS functions. Radio thing is just for input and output but the way its handled is under OS itself. Am I right or wrong? Think of removing packages depending to what you don't want.
i.e to disable messaging, Remove all things which are related to it. I'm sure you know it.
Though its a plenty of work and have to be expert so not messing around things.
ultrashot is right but if we had the source, every thing would have been different and even easy.
Radio is special and never dealt with in cooking. The Radio lower layers are treated with code in a dedicated partition (GSM) and accessed via an interface Layer (RIL = Radio Interface Layer) from the OS.
On top of that are applications like messaging or MMS - these can be cut.
I see no option to prevent e.g. only speech calls but allow data calls. On RIL level these are just different GSMBCIE elements (look up the relevent 3gpp specs). Of course you could find dirty ways to cut off e.g. the GSM speech codecs, but this would possibly not prevent to set up a call - creating cost but not having success when connected.
Tweaking these parts has not been of anyone's interest and thus "in theory" possible but hardly practically feasible.
How can i make changes on the OS?
Thanx a lot Cracing for the positive advice.I was planning to consult the OEM to make changes in the security policies.
I am working with the Synqe device .My main aim is barcode scanning and sending the data via GPRS or Wifi.and at the same time i want that all others connectivities and applications are to be deactivated.
Moreover i wish to restrict the usage of GPRS strictly for my application.
As u mentioned that i will have to make changes in the OS,will the OEM be able to do that for me or should i consult a good Mobile OS developer?
sneha6689 said:
Thanx a lot Cracing for the positive advice.I was planning to consult the OEM to make changes in the security policies.
I am working with the Synqe device .My main aim is barcode scanning and sending the data via GPRS or Wifi.and at the same time i want that all others connectivities and applications are to be deactivated.
Moreover i wish to restrict the usage of GPRS strictly for my application.
As u mentioned that i will have to make changes in the OS,will the OEM be able to do that for me or should i consult a good Mobile OS developer?
Click to expand...
Click to collapse
I see
Going with OEM should be better idea. They have the sources to do anything. Its not so easy for 3rd party Mobile OS developers (i.e here ). Need things and takes long enough to R&D and finish the project.
Hope you will find a good solution for your project soon.
Thanks...
Best Regards