[Q] Flashing ROM Carrier Unlock - HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting

I'm about to purchase a carrier unlocked T-Mobile version of the hTC HD2 from eBay.com and I wanted to know if I happened to flash ROM with something different if it's going to somehow get rid of the "unlocked"ness.
I'm heading to South Korea next next weekend and I'll be using it there, so I just want to know if there were any problems with the phone and had to hard reset it; if the phone is going to return back to its original state where T-Mobile had it carrier locked.

michaeljo said:
if it's going to somehow get rid of the "unlocked"ness.
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Click to collapse
no, once unlocked, you cant lock it again, no matter what you flash.

Thanks. Is it possible to unlock the device myself?

no. only buy a code, or from original network.

Related

Atrix network locked"phone is subsidy locked"or"network unlock request unsuccessful"

Atrix network locked"phone is subsidy locked"or"network unlock request unsuccessful"
Hi, I have atrix, borught in last year and got reaplced with at&t in feb2012..It was under the at&t policy so got replaced with refub atrix in feb 2012.
I was travelling abroad in may2012 (india) so I asked the unlock code. they provided me the code.. But unforchunately I enter wrong code 10 to 20 times (i know I am stupid here)... So contacted to at&t cust care.. they said you have correct code... now it has not working with at&t sim also...
so could you guys please tell me the solution to unlock sim so I can use in India???
My atrix is 4.5.91 with baseband 1.77.36
I rooted, unlock bootloader, and factory reset few times already...
Even now it was asking "sim network" unlock code but it wasnt successfull...it give me message "phone is subsidy locked"or"network unlock request unsuccessful"
Is it possible to use custom rom or new update 4.5.141 or any international baseband to use in India or atlead accept unlock code so I can use it...
THanks
PS I am not expert in phone roots or customs etc..but I am above average (with instr I can format or updates roms)
all i can say is that i have read in the forum that if u change ur radio then even valid unlock code wont work. so my suggestion it to get back to stock every thing (as much as possible) and try the unlock code again.
try using fruitcake to get back to stock and best of luck with that
xateeq said:
all i can say is that i have read in the forum that if u change ur radio then even valid unlock code wont work. so my suggestion it to get back to stock every thing (as much as possible) and try the unlock code again.
try using fruitcake to get back to stock and best of luck with that
Click to expand...
Click to collapse
Thanks for reply..
I will try to move back to stock..
Could put some light on it. (i am more or less newbie)
My current atrix status-- 4.5.91 rooted n unlock bootloader..
Could you tell me from where should I get fruitcakes n how to install it...which versions ??
THanks agian...
xateeq said:
all i can say is that i have read in the forum that if u change ur radio then even valid unlock code wont work. so my suggestion it to get back to stock every thing (as much as possible) and try the unlock code again.
try using fruitcake to get back to stock and best of luck with that
Click to expand...
Click to collapse
I have changed my radio many times and unlocked without any issues a few weeks back after getting the code from AT&T. I fail to see how a change in radio will prevent SIM/network unlock when AT&T themselves update the radio through their OTA upgrades. Even after unlock you can still continue to OTA with AT&T, have your radio updated through the OTA, (with a stock phone and locked bootloader of course), and not have problems. Without researching what you say further, I can only assume that changing the radio from AT&T to an international variant might cause problems. Do you have a link to where you read this?
Also, when you have used all attempts to network unlock, (10 tries I believe), you are hard locked.
I attempted to move on stock 4.5.91 and tried to unlock but still not able to
"phone is subsidy locked contact your network provider"
Is there way out from here
Also, when you have used all attempts to network unlock, (10 tries I believe), you are hard locked.
Click to expand...
Click to collapse
if its hard locked, what are my chances to unlock for other network.and how....
Now I can able to usee at&t but not other network...(cant use at&t due to roaming cost)
thanks

[Q] Confused (like usual)

I have the US Cellular version of the photon (electrify). I believe I upgraded to 2.3.5 but I don't fully remember, and proceeded to root. I however did not have my battery fully charged. As I was late to some print on the how-to-root page about keeping the battery at one hundred percent. So now my phone is stuck in Failed to Boot 1 when powered on. When power held with Vol up it goes to Fastboot and when held with Vol down it flashes then shuts back off. SO, my question is... do I need to unlock my bootloader or do I have to flash a stock sbf and all that jazz? Any help on the subject would be greatly appreciated, including locations of any files or drivers I might need or just a simple point to a thread that will tell me everything I need to know.
I've just confirmed it is 2.3.5 locked bootloader stock everything but I did use the OTA update. Is that bad?
random_guy83 said:
I've just confirmed it is 2.3.5 locked bootloader stock everything but I did use the OTA update. Is that bad?
Click to expand...
Click to collapse
Cant unlock bootlader
MarcquisDale said:
Cant unlock bootlader
Click to expand...
Click to collapse
Well I've brought the phone back to life using peetrs thread. Now does that mean I have to switch it to Sprint services like it says in his post In order to get it to run on prepaid? It works fine now but I cant get it into recovery or download mode. The screen gets stuck in fastboot protocol, so im assuming Ill have to flash his custom recovery and a sprint sbf radio in order to get Sprint prepaid?
random_guy83 said:
Well I've brought the phone back to life using peetrs thread. Now does that mean I have to switch it to Sprint services like it says in his post In order to get it to run on prepaid? It works fine now but I cant get it into recovery or download mode. The screen gets stuck in fastboot protocol, so im assuming Ill have to flash his custom recovery and a sprint sbf radio in order to get Sprint prepaid?
Click to expand...
Click to collapse
You can just slip in an activated pre paid sim card and it should work. Sprint doesnt have prepaid, if you're trying to use sprint just flash the sprint radios. As far as not being able to get into recovery, what did you do prior?
MarcquisDale said:
You can just slip in an activated pre paid sim card and it should work. Sprint doesnt have prepaid, if you're trying to use sprint just flash the sprint radios. As far as not being able to get into recovery, what did you do prior?
Click to expand...
Click to collapse
I flashed the 1FF-Sunfire sbf for stock 2.3.5 and it rebooted the phone but peetr says that you have to add a bootstrap recovery and flash a sprint radio aswell as another rom but I dont need to do anything special to the phone I just had this one and decided to fix it. I thought sim card use was only for outside of the US? I know I can get it on a standard pre-paid plan but i'll have to find out monday if it will work, I mean when a dial a number into the phone it tell's me I need to purchase a pre-paid pin and it gives me different types of plans? My plan is just to go and get it on US cell pre-paid for 65 a month.
random_guy83 said:
I flashed the 1FF-Sunfire sbf for stock 2.3.5 and it rebooted the phone but peetr says that you have to add a bootstrap recovery and flash a sprint radio aswell as another rom but I dont need to do anything special to the phone I just had this one and decided to fix it. I thought sim card use was only for outside of the US? I know I can get it on a standard pre-paid plan but i'll have to find out monday if it will work, I mean when a dial a number into the phone it tell's me I need to purchase a pre-paid pin and it gives me different types of plans? My plan is just to go and get it on US cell pre-paid for 65 a month.
Click to expand...
Click to collapse
Yeah the kddi radio allows the use of US prepaid. What number are you dialing
MarcquisDale said:
Yeah the kddi radio allows the use of US prepaid. What number are you dialing
Click to expand...
Click to collapse
I was just dialing random numbers.

[Q] can't SIM unlock

I recently switched from AT&T to T-mobile. The phone however will not allow me to use t-mobile's sim card. The sim unlock code that ATT provided me does not work. I've called ATT and they can't figure it out.
Could the failure to unlock the sim have anything to do with these facts?
At one point I rooted the phone, but then an OTA update broke root
The Flixster app won't play anything because it sees an su binary which still exists but can't be used
Is there some sort of hack I can apply to SIM unlock my phone?
I've heard of considerable number of cases where the unlock code doesn't work because the phone was rooted, so that might very well be it.
I don't know what do you mean by "it broke root" because it seems at least some parts of are still present. If you have the "su" binary in the right directory and it has the right permissions, you can just install Superuser or SuperSU or any other superuser app from the market and you have a working root again. In which case you could also try unrooting (some SU apps support that) and try the unlock code again.
ravilov said:
I've heard of considerable number of cases where the unlock code doesn't work because the phone was rooted, so that might very well be it.
I don't know what do you mean by "it broke root" because it seems at least some parts of are still present. If you have the "su" binary in the right directory and it has the right permissions, you can just install Superuser or SuperSU or any other superuser app from the market and you have a working root again. In which case you could also try unrooting (some SU apps support that) and try the unlock code again.
Click to expand...
Click to collapse
Thanks. Root checker says my phone is not rooted. Another checker app says everything is locked up, but the su binary does happen to still be around.
You are missing the point. Of course any tool out there will say it is not rooted. That is irrelevant.
I already suggested a course of action, you can either try it or not...
ravilov said:
You are missing the point. Of course any tool out there will say it is not rooted. That is irrelevant.
I already suggested a course of action, you can either try it or not...
Click to expand...
Click to collapse
Yes, I am planning on trying it. I just haven't had time yet. I still wonder if there is a way to carrier-unlock the phone via hacking. I just don't know enough about it to even know what to google for. I will spend some more time searching the internet etc. I know rooting gives access to all files on the phone. I know rooting is different than bootloader unlocking, which allows you to put custom ROMs on. What I don't know, is if the carrier lock is something that is unlocked via bootloader unlock, or if it's something entirely different. Is carrier lock something that is actually outside the phone? Ie no matter how much phone hacking you do, you can't carrier unlock because the carrier lock is something that is actually on the network? Just trying to understand.
I see This a lot. It sounds like a crazy idea because we know entering in the wrong sim unlock code will lock up the phone. Recently I was unlocking a Nokia 920. Paid for the unlock got the code back tried entering it. Said it was wrong. Called blowfish unlocks(the company I use regularly) they told me to keep putting it in until it was supposed to lock up the phone. Believe me I didn't just jump up and do it. But in the end I said screw it. And kept entering it. In the end it unlocked. I'm not saying this is the case with your phone. Just that I've seen it happen.
Sent from my LG-E970 using xda app-developers app
eddified, I had the same issue as you when I bought my Atrix off of eBay.
Took a while, but one option was flashing the Bell Canada radio and then unlocking. That worked. None of the ATT radios worked, but Bell did. This is the bell radio:
https://mega.co.nz/#!y1gljTbZ!SlCaNzO36Kh7SyQCB9SLEUHWgXcK8UXJYRh6Uxrykfo
If the unlock works, you can flash back to the ATT radio. You can find different versions all over these forums, but the bell one is a huge PITA to find, so enjoy the link and good luck!
tonglebeak said:
eddified, I had the same issue as you when I bought my Atrix off of eBay.
Took a while, but one option was flashing the Bell Canada radio and then unlocking. That worked. None of the ATT radios worked, but Bell did. This is the bell radio:
https://mega.co.nz/#!y1gljTbZ!SlCaNzO36Kh7SyQCB9SLEUHWgXcK8UXJYRh6Uxrykfo
If the unlock works, you can flash back to the ATT radio. You can find different versions all over these forums, but the bell one is a huge PITA to find, so enjoy the link and good luck!
Click to expand...
Click to collapse
Thanks. Quick question, do I need to unlock the bootloader to flash a radio? I'm thinking no, but not sure.
eddified said:
Thanks. Quick question, do I need to unlock the bootloader to flash a radio? I'm thinking no, but not sure.
Click to expand...
Click to collapse
I honestly cannot recall. I want to say that I never did a thing to the phone until I had it unlocked, but I'm not sure. Best I can say is try it and you'll find out one way or another.
ah.. it's coming back to me now. I think I put a different radio on the phone awhile back. That's probably what's causing the unlock to not work.
hey tonglebeak, are you saying even though my phone is intended for the US, and the radio is for Bell Canada, I can use it to unlock even while in the US?
eddified said:
hey tonglebeak, are you saying even though my phone is intended for the US, and the radio is for Bell Canada, I can use it to unlock even while in the US?
Click to expand...
Click to collapse
Yes. I won't recommend staying on that radio, but that is what I had to do to get my ATT unlock code to work.
Bell Radio didn't work. Tried all kinds of radios. Nothing works.

International SIM Unlock and Installing Custom ROMs

I am moving to Taiwan next month and I wanted to unlock my phone to be able to use SIM cards from their carriers there. I am planning to call Sprint to have them do it for me OTA but I just wanted to check on a couple things first.
1. If I decide to install a custom ROM after Sprint does the SIM unlock, will it "break" the unlock? I'm not exactly clear on what controls the locking of the SIM card so I just want make sure I know what to avoid doing to my phone in order to keep the phone unlocked for international use.
2. If I cancel my Sprint service and only use the phone on an international carrier will the SIM unlock stick? I'm assuming it would but I just want to make sure because of my ignorance of how this whole SIM unlocking thing works.
Thanks in advance, any insight about this topic would be greatly appreciated!
The ssu app will work if your on KK.
Once it's unlock it stays unlocked.
http://idoneapps.webs.com/
rbeavers said:
The ssu app will work if your on KK.
Once it's unlock it stays unlocked.
For lollipop
Click to expand...
Click to collapse
Thanks for the link! I think I'll try going the free route first and have Sprint unlock it for me. If I end up running into any problems in the future with flashing ROMs, it's good to know that there's an app I can buy to keep it unlocked.

Question regarding SIM Unlock and ROM flashing

Dear community,
I unlocked my SGS3 for all carriers through a nearby shop one year ago. He told me I have two options: Either a much more expensive IMEI Unlock, or a much cheaper Software-Based SIM Unlock. There seemed to be no downsides to the Software Method, even though the guy there told me that I should not flash any new roms since that would destroy the Software Unlock (but resetting the Phone would be no problem).
As of lately, I have been looking into several new ROMs which look very nice, and I would like to flash them...but I am afraid that it would brick the SIM Unlock. Now here is my question: Is there any way to find out what that guy actually did to my Phone? And secondly: Since the S3 is already VERY old, is there a possibolity to unlock its IMEI? Or any other SIM Unlock Method which I could apply myself?
Btw: My carrier is "3" (Hutchison), Austria.
Any help is appreciated! Thank you!
The s3 can be unlocked via code as long as the unlocker can access the unlocking code database.
Usually, unlocking the s3 via code or software is permanent. I have unlocked s3 i747m phones, using a secret dialler menu and code, none of which have relocked after flashing stock or custom roms.
Thanks for your help!
So, should I just go for it and try it out? Maybe it will stay as it is but I am not sure...
Has the phone EVER seen a 4.3 rom?. If NOT, you CAN do the nvram unlock method. Out of 1-10 on difficulty its about a 6. You MUST BE VERY CAREFULL!.
The fact it was done software tells me that it would have been a galaxsim unlock which "should" be permanent.
Beamed in by telepathy.
shivadow said:
Has the phone EVER seen a 4.3 rom?. If NOT, you CAN do the nvram unlock method. Out of 1-10 on difficulty its about a 6. You MUST BE VERY CAREFULL!.
The fact it was done software tells me that it would have been a galaxsim unlock which "should" be permanent.
Beamed in by telepathy.
Click to expand...
Click to collapse
Yes, as far as I know, it had a 4.3 Stock Rom at some point, but I installed the official 4.4.4 Stock Rom later on. Thats why I want to switch to another ROM, hoping that the performance increases.
There was no official 4.4.4 for the i9300. It stopped at 4.3 but seeing as you know it had 4.3 the only way to unlock the simlock is to pay for it.
I doubt you'll brick the device as there is always odin. The i9300 is quite resilient and in most software cockups flashing back to stock with odin will fix it to the point of a "working" device.
If it was me I'd risk it and odin if it goes wrong so make sure you have a usable stock rom before you start.
IF it does relock your phone you can pay about £10 - £20 (gbp) to have it permanently unlocked for any network and it should be unlocked while-u-wait, taking approximately 5 minutes.
Beamed in by telepathy.
shivadow said:
There was no official 4.4.4 for the i9300. It stopped at 4.3 but seeing as you know it had 4.3 the only way to unlock the simlock is to pay for it.
I doubt you'll brick the device as there is always odin. The i9300 is quite resilient and in most software cockups flashing back to stock with odin will fix it to the point of a "working" device.
If it was me I'd risk it and odin if it goes wrong so make sure you have a usable stock rom before you start.
IF it does relock your phone you can pay about �10 - �20 (gbp) to have it permanently unlocked for any network and it should be unlocked while-u-wait, taking approximately 5 minutes.
Beamed in by telepathy.
Click to expand...
Click to collapse
Thanks!
One guy already tried to unlock it using the IMEI-Unlock method, but he did not manage to open the menu where he can enter the IMEI-Unlock code - even after inserting a SIM-Card from another carriert, there came no option where you can enter the Unlock Code. IF the device is locked again after I flash a new ROM, I hope that it can be at least unlocked once and for all by the IMEI-Unlock method...
Did you try flashing the stock 4.3 ROM from here: http://www.sammobile.com/firmwares/database/GT-I9300/ in order to enter the unlock code?
audit13 said:
Did you try flashing the stock 4.3 ROM from here: http://www.sammobile.com/firmwares/database/GT-I9300/ in order to enter the unlock code?
Click to expand...
Click to collapse
Thank you for your kind help, but there was no need for that. I actually flashed a new ROM and the SIM Unlock is still there! Very very nice!
A huge thanks to you all for offering me your help!
Thir thread can be closed.

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