Hi there,
I rooted my phone. I've installed Cyanogenmod 7 and enjoyed it. However, it is SIM locked. I purchased an unlock code... but now I can't enter it.
This person had the same problem:
http://forum.xda-developers.com/showthread.php?t=1313393
Cyanogenmod does not prompt to unlock even with a foreign SIM card.
The solution was to revert to a stock firmware. Which is great... except for the fact that my phone's model number is:
i5500m.
It's the dreaded Canadian version. I can't find firmware for it anywhere. I've tried Check FUS:
Product Code: GT-I5500YKMVMC
No firmware info retrieved for given data.
Generally it seems like I only have two solutions... and one failure.
The first solution is to find a stock firmware for this phone. Or receive a backup from someone who has the stock firmware with Clockworkmod.
The second solution is to enter the unlock code without the prompt. Is there a way, an app, or a hack to do something like this?
My failure is to accept that there's no reverting. But I don't really want to do that.
Oh, and thank you for welcoming me into your forums. XDA Developers is a really amazing site. I've thanked it plenty of times for saving my ass.
Thanks for your time,
Sacrosaint.
Your answer may be found here:
http://forum.xda-developers.com/showthread.php?t=1149110
Look closely at the latest changelog and notice that point 12 states -
"Network: SIM lock messages will no longer be ignored. This may help people who have problems using SIM cards that require a PIN unlock."
Good luck
________________________________________________
Please press "Thanks" if you found me helpful.
i5500
CM7 1.9 hf3
I5500BVJJP9
Thank you so much! I missed that update by only two days. I'm sure this will help many people.
I'll edit this post with my results once completed.
Thanks again!
Sacrosaint.
---------------------------------
Results:
So I updated the ROM. I did not do a data-wipe. I inserted a foreign SIM card. It says it's connected but I'm not getting any service... I don't believe it's unlocked, as I haven't entered a code yet.
Perhaps I should do a data-wipe and retry. I'll repost afterward.
---------------------------------
Potential Final Update:
Odd! I inserted a Rogers SIM card into my phone running CyanogenMod and although no unlock code appeared... it worked. Also known as: my phone is unlocked.
Some interesting thoughts concerning this:
My phone model is i5500m. It comes locked to Bell or Virgin Mobile in Canada.
Upon trying the bml5 unlock method, my code came up as "01234567." Others experiencing this problem concluded that the phone was hard locked.
However, it would appear that flashing this ROM effectively removed the SIM lock. That means that originally, the SIM lock was a part of the firmware. That is slightly scary. I wish I would have come to this conclusion earlier, however, as I paid a premium of $40 dollars to unlock it (at least I supported a local business.)
So: for i5500m or Canadian Samsung Galaxy 5 users to unlock their phones, they must simply root and flash a custom ROM. Originally mine was from Bell, and it has worked with a Rogers SIM card. I'll possibly update this tomorrow when I try the phone with a Koodo SIM.
Hope this helps someone out there.
Sacrosaint
Sacrosaint,
I have an unlocked GT-I5503YKAINU running baseband I5500LUYJP2 and ROM CyanogenMod-7.2.0-RC0-galaxy5-v1.9. I inserted a Virgin Mobile Canada SIM card and do not get Service. With a Rogers SIM card, I do get Service. I spoke to people at Virgin and they said it's because my phone doesn't support HSPA+. The reason it works with Rogers is because it supports GSM.
I'm wonder if there's a way to install the baseband firmware from GT-I5500YKMVMC and still use CyanogenMod-7.2.0-RC0-galaxy5-v1.9?
asawrup said:
Sacrosaint,
I have an unlocked GT-I5503YKAINU running baseband I5500LUYJP2 and ROM CyanogenMod-7.2.0-RC0-galaxy5-v1.9. I inserted a Virgin Mobile Canada SIM card and do not get Service. With a Rogers SIM card, I do get Service. I spoke to people at Virgin and they said it's because my phone doesn't support HSPA+. The reason it works with Rogers is because it supports GSM.
I'm wonder if there's a way to install the baseband firmware from GT-I5500YKMVMC and still use CyanogenMod-7.2.0-RC0-galaxy5-v1.9?
Click to expand...
Click to collapse
What the representative said was true.
Virgin is both HSPA+ and CDMA. The Galaxy 5 IS a GSM phone. Its radio will not work with other frequencies.
You will want to go with Bell, Rogers, Telus, Fido, or Koodo, the GSM suppliers, my friend.
Hi people, I have this GS3 that i tried to unlock with Voodoo sim unlock method. Problem is, i used Voodoo on the stock GS3 ClaroPR firmware. And i know ClaroPR firmwares are a pain in the arch to unlock sim with. Should have change to a non branded(carrier) firmware yeah i know. Thing is, When i flashed it to a non branded firmware the phone ask for the unlock code. Ive seen that before with other ClaroPR Galaxy phones but my question is, can i somehow fix this in order to unlock the phone? Or should i do that with a box?
http://lmgtfy.com/?q=voodoo+galaxy+s3+sim+unlock
Pretty cool, but that doesnt solve my problem. My problem is that i used Voodoo sim unlock while the phone was running on Stock(carrier brand) firmware. Those ClaroPR firmwares have some kind of security that i havent seen on any other firmwares. If you try to unlock them on those firmwares and then flash it with non branded stock the phone will have an unlock nv_data but still ask you for the pin. What i want is to get rid of that. Since the phone still shows locked network simcard.
enelyam said:
Pretty cool, but that doesnt solve my problem. My problem is that i used Voodoo sim unlock while the phone was running on Stock(carrier brand) firmware. Those ClaroPR firmwares have some kind of security that i havent seen on any other firmwares. If you try to unlock them on those firmwares and then flash it with non branded stock the phone will have an unlock nv_data but still ask you for the pin. What i want is to get rid of that. Since the phone still shows locked network simcard.
Click to expand...
Click to collapse
ok here's what you need to do, use sim unlock for JB, with that app you'll be able to use another SIM, also I used JB now which makes everything easier and the sim is completely unlocked
http://forum.xda-developers.com/showthread.php?t=1846451
Thanks for your help, will give it a try then. Thanks a lot!
Ummmmm, nothing. Not even that app took the sim lock out. Even when it shows that is completely unlock it still ask for the sim unlock code and shows wrong sim card. I think its a mess that was created when i tried to unlock it when it was running the ClaroPR firmware. Samsung tool is not working on my box so im in deep trouble right now lol.... Well, if anyone have some other idea it will be good for me to try a different method before just paying for a code. Or waiting for the SGTool to do the job for me.
enelyam said:
Ummmmm, nothing. Not even that app took the sim lock out. Even when it shows that is completely unlock it still ask for the sim unlock code and shows wrong sim card. I think its a mess that was created when i tried to unlock it when it was running the ClaroPR firmware. Samsung tool is not working on my box so im in deep trouble right now lol.... Well, if anyone have some other idea it will be good for me to try a different method before just paying for a code. Or waiting for the SGTool to do the job for me.
Click to expand...
Click to collapse
did you update to JB or any other unbranded fw??? cause I think you have the same problem as telcel's fw, they lock the radio so you can't use any sim even though the phone is unlocked
Just purchased an HTC One and an unlock code, and upon inserting a T-Mobile sim card into the slot, I do not receive the Sim Network Unlock Pin request menu, instead I receive an error Phone Not Allowed MM #6 which I've read means the phone has a bad IMEI, but the phone works flawlessly with my AT&T Sim card meaning it cant be a bad IMEI. Am I just a noob and missing one simple step? I've rooted hundreds of phones and im coming from my HTC One X rooted and unlocked, so if anyone can help please respond as soon as possible, as I said I already have my unlock code, just unable to attain the input menu, the phone is NOT stolen.
Thanks so much,
Z?
zquesti0nmark7 said:
Just purchased an HTC One and an unlock code, and upon inserting a T-Mobile sim card into the slot, I do not receive the Sim Network Unlock Pin request menu, instead I receive an error Phone Not Allowed MM #6 which I've read means the phone has a bad IMEI, but the phone works flawlessly with my AT&T Sim card meaning it cant be a bad IMEI. Am I just a noob and missing one simple step? I've rooted hundreds of phones and im coming from my HTC One X rooted and unlocked, so if anyone can help please respond as soon as possible, as I said I already have my unlock code, just unable to attain the input menu, the phone is NOT stolen.
Thanks so much,
Z?
Click to expand...
Click to collapse
Does anyone on earth have a clue whats going wrong? I sat on the phone with AT&T, HTC, and T-Mobile for hours and no one has a clue why I'm not being asked for my unlock code upon inserting the sim card, please I cant be the only person who has had this issue, i have now tried many hard reboots, unlocked boot loader, even flashed maximus 7 HD to try and reset the counter and still no luck.
zquesti0nmark7 said:
Does anyone on earth have a clue whats going wrong? I sat on the phone with AT&T, HTC, and T-Mobile for hours and no one has a clue why I'm not being asked for my unlock code upon inserting the sim card, please I cant be the only person who has had this issue, i have now tried many hard reboots, unlocked boot loader, even flashed maximus 7 HD to try and reset the counter and still no luck.
Click to expand...
Click to collapse
I also recently bought an AT&T HTC One from Craiglist. When I inserted a T-Mobile SIM card it prompted me to enter the unlock code, which I entered then the phone rebooted and it no longer asked me for the unlock code.
BUT, i was not able to get a signal and got the MM #6 error.
The error apparently can be from the phone being black listed. in my case the phone is not blacklisted.
The other reason, it seems, since the phone was bought from AT&T with subsidies, AT&T will not allow the phone to be used on t-mobile.
Had the previous owner requested the unlock code before selling it then it would have been unlocked.
For now, I am using it with aio for $40/month which is pretty good.
Regards,
Hi, i have been trying to find an answer to this after hours of searching i've come up short and confused.
I recently switched from tmobile to verizon, and i paid off my tmobile s9+ and had it sim unlocked. When i put my verizon sim in it, nothing really happens. either it tells me that it can't register on the network or to insert a tmobile sim card.
I have tried using reset and factory reset. I have also tried the method of holding the volume bixby and power and doing a factory reset, then putting the sim in, rebooting, etc. That doesn't work either.
I see several people trying to go from verizon to tmobile, but i haven't been able to find anyone going from tmobile to verizon, and what method i need to do to get this to work, if its possible at all. Any help would be so much appreciated!
gigatigga said:
Hi, i have been trying to find an answer to this after hours of searching i've come up short and confused.
I recently switched from tmobile to verizon, and i paid off my tmobile s9+ and had it sim unlocked. When i put my verizon sim in it, nothing really happens. either it tells me that it can't register on the network or to insert a tmobile sim card.
I have tried using reset and factory reset. I have also tried the method of holding the volume bixby and power and doing a factory reset, then putting the sim in, rebooting, etc. That doesn't work either.
I see several people trying to go from verizon to tmobile, but i haven't been able to find anyone going from tmobile to verizon, and what method i need to do to get this to work, if its possible at all. Any help would be so much appreciated!
Click to expand...
Click to collapse
Use Odin to flash U1 and then go back to U. Just leave the SIM in. Don't use HOME CSC.
CrazyApe18 said:
Use Odin to flash U1 and then go back to U. Just leave the SIM in. Don't use HOME CSC.
Click to expand...
Click to collapse
That still may not help, remember Verizon is still CDMA and the T Mobile branded phone does not have CDMA bands activated and they may not even be on the phone, I don't know. Granted band 13 should work fine, being LTE, but could the sim be looking for a CDMA radio and that is why it is not working?
uzupan said:
That still may not help, remember Verizon is still CDMA and the T Mobile branded phone does not have CDMA bands activated and they may not even be on the phone, I don't know. Granted band 13 should work fine, being LTE, but could the sim be looking for a CDMA radio and that is why it is not working?
Click to expand...
Click to collapse
The hardware is identical for all US Galaxy S9 phones. Any bands that may be missing will be resolved by flashing firmware. OP could also just stay with U1 if they want unlocked, and all bands would still be there.
CrazyApe18 said:
The hardware is identical for all US Galaxy S9 phones. Any bands that may be missing will be resolved by flashing firmware. OP could also just stay with U1 if they want unlocked, and all bands would still be there.
Click to expand...
Click to collapse
That is good to know, I sure hope it works for him.
Thank you for the replies, i will try this and post back!
Well sadly with the u1 firmware files, i get an auth error SW REV CHECK FAIL. =/
CrazyApe18 said:
The hardware is identical for all US Galaxy S9 phones. Any bands that may be missing will be resolved by flashing firmware. OP could also just stay with U1 if they want unlocked, and all bands would still be there.
Click to expand...
Click to collapse
As per Samsung chat support, I've asked if the dual sim version (international) will work with Verizon. I've also asked the rep if I can switch carriers with a locked phone. They said that essentially, all phones were manufactured with the CDMA and GSM band compatibility, it just needs to be unlocked and the US versions will work on any carrier in the US and the international version (dual sim) needs to be unlocked and it will work with any carrier in any country.
That said, it seems that you're just having an unlocking issue - which is good and bad. I hope you figure this out. Try using Odin 3.13, get the CORRECT firmware for U1 or U(VZW) to flash your phone
eyewin said:
As per Samsung chat support, I've asked if the dual sim version (international) will work with Verizon. I've also asked the rep if I can switch carriers with a locked phone. They said that essentially, all phones were manufactured with the CDMA and GSM band compatibility, it just needs to be unlocked and the US versions will work on any carrier in the US and the international version (dual sim) needs to be unlocked and it will work with any carrier in any country.
That said, it seems that you're just having an unlocking issue - which is good and bad. I hope you figure this out. Try using Odin 3.13, get the CORRECT firmware for U1 or U(VZW) to flash your phone
Click to expand...
Click to collapse
Only one small correction to what they told you: The 965F (international), will not have CDMA capabilities. That might not be a problem on some US carriers. But if you can't get VoLTE working on VZW with 965F, then you're dead in the water, since you don't have 1x CDMA calling to fall back on. It becomes a data-only device. I don't have experience with it, but I wouldn't be surprised if the VoLTE doesn't work on US carriers. For GDM/WCDMA carriers, you'd probably be just fine with 965F. Even if VoLTE doesn't work, you'd still be able to call.
Hope this helps.
eyewin said:
That said, it seems that you're just having an unlocking issue - which is good and bad. I hope you figure this out. Try using Odin 3.13, get the CORRECT firmware for U1 or U(VZW) to flash your phone
Click to expand...
Click to collapse
Thanks for your reply, any idea where to get these? I'm seeing all kinds of universal stuff and people saying carrier specific don't exist, etc etc. If you happen to know i'd be extremely grateful
gigatigga said:
Thanks for your reply, any idea where to get these? I'm seeing all kinds of universal stuff and people saying carrier specific don't exist, etc etc. If you happen to know i'd be extremely grateful
Click to expand...
Click to collapse
Step 1
Can you find out the exact model number?
For T-Mobile, it will be one of these :
SM-G965UZKATMB (Midnight Black)
SM-G965UZBATMB (Coral Blue)
SM-G965UZPATMB (Lilac Purple)
The U is the important part, as a previous poster explained that the F models do not have CDMA support (forget what that actually means, just know its necessary for verizon)
Step 2
Next, make sure that the carrier version is correct.
Example: SM-G965UZKATMB
BST Boost
VZW Verizon
ATT ATT
USC US Cellular
ACG C Spire
TMK MetroPCS
VMU Virgin Mobile
TFN Tracfone
XAS Sprint
TMB T-Mobile
XAA Unlocked US
SPR Sprint
CCT Xfinity Mobile
Essentially, you need the firmware that starts with SM-G965U and ends with VZW
Step 3
I'm not 100% sure on how to flash from carrier to carrier but there will be a list of directions. You may need to do some research there to see if it will void samsung warranty (aka 'trip knox') or anything like that, if that matters to you. I think only a modified version of Odin will be able to do this.
Download Odin v3.13.1
Extract the firmware file you just downloaded. You should get 5 files:
AP (System & Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC_OXM (OXM CSC file, will wipe your phone)
HOME_CSC_OXM (OXM CSC file, will NOT wipe your phone)
Add each file to it's respective field in Odin v3.13.1. Use CSC_OXM if you want to do a clean flash and HOME_CSC OXM if you want to keep your apps and data.
Reboot your phone in Download / Odin mode with the following button combo: POWER + VOLUME DOWN + BIXBY
Once in download mode, connect your phone to the PC, preferably using the original USB cable you got with your phone. Odin should detect your device and a blue box will show up with the COM port number.
Do NOT tick any extra boxes. The only options to be ticked are F.Reset Time and Auto-Reboot.
Click the start button, wait for Odin to say 'PASS'. Once the flash is complete, your phone will reboot.
Click to expand...
Click to collapse
Step 4
To download firmwares, google "SAMMOBILE website: /firmwares/galaxy-s9-plus/SM-G965U"
Looks like the latest verizon firmware is here: SAMMOBILE website /firmwares/galaxy-s9-plus/SM-G965U/VZW/download/G965USQS2ARF4/223287
(I'm not yet allowed to post links)
Hey thanks a bunch, I’ll give this a shot when I get home tonight. It very well may be that the rom I got wasn’t the right one. Other threads I’ve read seemed to indicate that everything was universal now and by having the SIM card in the phone while flashing, it would download the carrier specific stuff automatically. That part at least doesn’t appear to be the case since the phone wouldn’t accept it. But I’ll download some of the carrier specifics and see what happens. Thanks again!
Did you get it to work after all?
Sorry that i forgot to update! I did get it working, but it required a bit more discussion and help on a reddit discussion someone started. I noticed that someone asked this exact question and i pointed him to this thread where he was able to get it working, then helped me with which roms he used, and i got it working as well! I've been using it daily for almost a month now. Thanks so much for everyones help, i hope that if anyone else is trying to do this, between the two threads it can help. Heres the link to the reddit thread https://old.reddit.com/r/verizon/comments/909iag/tmobile_s9_on_verizon/
gigatigga said:
Sorry that i forgot to update! I did get it working, but it required a bit more discussion and help on a reddit discussion someone started. I noticed that someone asked this exact question and i pointed him to this thread where he was able to get it working, then helped me with which roms he used, and i got it working as well! I've been using it daily for almost a month now. Thanks so much for everyones help, i hope that if anyone else is trying to do this, between the two threads it can help. Heres the link to the reddit thread https://old.reddit.com/r/verizon/comments/909iag/tmobile_s9_on_verizon/
Click to expand...
Click to collapse
Awesome gigatigga - thanks for getting back. I'm on the verge of trying this. I owe some money on my S9 plus on t-mobile but before i paid it off wanted to make sure all is good.
How are the speeds? Everything working ok? Thanks again! :good::good:
Edit: I was all set to do this and during the signup - I found out that my imei wouldn't work in Verizon's system so they used one from another phone. He advised that if I wanted to pay for insurance, if I make a claim it could be an issue because the imei numbers won't match up. Seemed like a big red flag to me. So I didn't go through with it. Wonder how others are handling this?
I just switched from the ATT firmware to ARF4 on T-Mobile, but it says there is no update available, while the newest T-Mobile update is ARF7. Does anyone know how to get updates OTA?
zman441 said:
I just switched from the ATT firmware to ARF4 on T-Mobile, but it says there is no update available, while the newest T-Mobile update is ARF7. Does anyone know how to get updates OTA?
Click to expand...
Click to collapse
Right here bro. You'll need to sign up with Sam Mobile first then download it. It's slow but it'll get there in about 4 hours or so
https://www.sammobile.com/firmwares/galaxy-s9-plus/SM-G965U/TMB/download/G965USQU2ARF7/225597/
glensta said:
Right here bro. You'll need to sign up with Sam Mobile first then download it. It's slow but it'll get there in about 4 hours or so
https://www.sammobile.com/firmwares/galaxy-s9-plus/SM-G965U/TMB/download/G965USQU2ARF7/225597/
Click to expand...
Click to collapse
use updato, much faster
Invalid SIM Card
elliwigy said:
use updato, much faster
Click to expand...
Click to collapse
Can someone help me?
I cannot network unlock a T-mobile Samsung Galaxy 9 plus which has never been active on any plan. When I insert my Verizon SIM card a system notification says "Invalid SIM card. Network Locked SIM card inserted".
I want to bring this phone to Verizon where I have an active plan. I don't have a plan with Tmobile and my friend gifted me this phone. I flashed it to Samsung stock firmware and bought an unlock code from DoctorSim. The code applied successfully however the phone doesn't unlock completely and continues to prompt for the unlock code when I insert the Verizon Sim card. When I called Tmobile they said only a phone active for 40 days on their network can be unlocked using the phone app and that my friend would have to call them to unlock the phone.
jon westerman said:
Can someone help me?
I cannot network unlock a T-mobile Samsung Galaxy 9 plus which has never been active on any plan. When I insert my Verizon SIM card a system notification says "Invalid SIM card. Network Locked SIM card inserted".
I want to bring this phone to Verizon where I have an active plan. I don't have a plan with Tmobile and my friend gifted me this phone. I flashed it to Samsung stock firmware and bought an unlock code from DoctorSim. The code applied successfully however the phone doesn't unlock completely and continues to prompt for the unlock code when I insert the Verizon Sim card. When I called Tmobile they said only a phone active for 40 days on their network can be unlocked using the phone app and that my friend would have to call them to unlock the phone.
Click to expand...
Click to collapse
i dont do network unlocks.. you need to pay ur phone off and use the tmobile unlock apk
Sent from my SM-N960U using Tapatalk
I have a tmobile lg v30 that was unlocked with device unlock tool... used it for a year on att. Then I went to xfinity mobile with an Iphone. Put the v30 away for a month.
Was gonna give to my friend to use on tmobile. When you put a tmobile sim card in it will not connect to any network. Will not work with att sim now either. Tmobile says its carrier locked and they
cannot unlock it now. ????? Says I have to get the original carrier to unlock it... They are the original carrier. Device unlock "when you try Permanent unlock says" Unlock Failed Unlock Approved : Mobile device is permanently unlocked.
When you try Temp unlock it says Unlock Failed Unlock Approved : Mobile device is temporarily unlocked until 02-Aug-2019.
When you put tmobile sim in the apn is there but you cannot edit or add apn.
When your put any other sim in the apn is empty and you cannot add apn.
Phone is on Android version 7.1.2
Tia
MrFordwrench
[email protected]
mrfordwrench said:
I have a tmobile lg v30 that was unlocked with device unlock tool... used it for a year on att. Then I went to xfinity mobile with an Iphone. Put the v30 away for a month.
Was gonna give to my friend to use on tmobile. When you put a tmobile sim card in it will not connect to any network. Will not work with att sim now either. Tmobile says its carrier locked and they
cannot unlock it now. ????? Says I have to get the original carrier to unlock it... They are the original carrier. Device unlock "when you try Permanent unlock says" Unlock Failed Unlock Approved : Mobile device is permanently unlocked.
When you try Temp unlock it says Unlock Failed Unlock Approved : Mobile device is temporarily unlocked until 02-Aug-2019.
When you put tmobile sim in the apn is there but you cannot edit or add apn.
When your put any other sim in the apn is empty and you cannot add apn.
Phone is on Android version 7.1.2
Tia
MrFordwrench
[email protected]
Click to expand...
Click to collapse
If it's a T-Mobile H932 and you want to use it on T-Mobile, why does it need to be carrier unlocked?
If it won't work on T-Mobile, have T-Mobile repair it
It's not a carrier unlocking issue, at least if you want to use it on T-Mobile..
Because it’s not on an account now and T-Mobile says it needs to be network unlocked. Before they can add it back to their network.
mrfordwrench said:
Because it’s not on an account now and T-Mobile says it needs to be network unlocked. Before they can add it back to their network.
Click to expand...
Click to collapse
T-Mobile H832 does NOT need to be carrier unlocked to work on T-Mobile, since it's a T-Mobile device.
If they are telling you that they're lying or they don't understand what you're asking. Maybe you confused them with unnecessary details about your attempt to carrier unlock it in the past.
Stop mentioning that to them and focus on it's T-Mobile device that needs to work on T-Mobile, period. And they need to replace it or repair it if it doesn't.
If some incompetent support person doesn't understand that, then go to another store or make another phone call.
___
mrfordwrench said:
Tmobile says its carrier locked and they
cannot unlock it now. ????? Says I have to get the original carrier to unlock it... They are the original carrier.
Click to expand...
Click to collapse
Just to be crystal clear here,
are you sure about that? Is there something you're not telling us?
We ARE talking about T-Mobile H932 and not Puerto Rico H932, right? You BOUGHT it from T-Mobile, right?
If the answer is yes, it's T-Mobile H932, then this statement stands:
T-Mobile H832 does NOT need to be carrier unlocked to work on T-Mobile, since it's a T-Mobile device.
You need to find competent support person and do NOT mention anything about carrier unlocking to them... until the phone is working on T-Mobile with no problem.
THEN, you can ask them about carrier unlocking it to work on other carriers.