[Q] Is the cell unlock code dependent on RUU/firmware? - One (M8) Q&A, Help & Troubleshooting

I decided to upgrade to M9. I currently have a T-mobile M8, that I decided to give away to a friend, he does not use T-mobile or live in the US.
So the question is, if I flash a HTC unlocked edition RUU, will the Sim unlock code provided by T-mobile still work?

Just dropping by....
siddardhab said:
I decided to upgrade to M9. I currently have a T-mobile M8, that I decided to give away to a friend, he does not use T-mobile or live in the US.
So the question is, if I flash a HTC unlocked edition RUU, will the Sim unlock code provided by T-mobile still work?
Click to expand...
Click to collapse
From what I know, no, it might not work because the phone might not even ask for the code.
In order to unlock the phone you have to insert a NON accepted sim and get it to prompt for the "SIM network unlock PIN".
If this is the situation, you can try flashing and see if it prompts for the code with your friends sim card.
IF, however, it does ask for the code, just try it first. If it doesn't work you have to flash back to stock Tmobile firmware, Unlock it, then it will work with you friend.
I recommend a few sites like cellphoneunlock.net or cellunlocker.net as I have had much success with them over the years. I don't know if you are using other sites but I am just contributing what I know so far
Good luck to you and your friend! :good:

1sagain said:
From what I know, no, it might not work because the phone might not even ask for the code.
In order to unlock the phone you have to insert a NON accepted sim and get it to prompt for the "SIM network unlock PIN".
If this is the situation, you can try flashing and see if it prompts for the code with your friends sim card.
IF, however, it does ask for the code, just try it first. If it doesn't work you have to flash back to stock Tmobile firmware, Unlock it, then it will work with you friend.
I recommend a few sites like cellphoneunlock.net or cellunlocker.net as I have had much success with them over the years. I don't know if you are using other sites but I am just contributing what I know so far
Good luck to you and your friend! :good:
Click to expand...
Click to collapse
siddardhab said:
I decided to upgrade to M9. I currently have a T-mobile M8, that I decided to give away to a friend, he does not use T-mobile or live in the US.
So the question is, if I flash a HTC unlocked edition RUU, will the Sim unlock code provided by T-mobile still work?
Click to expand...
Click to collapse
Just make sure the ROM you are flashing supports official HTC codes, I think that is how it goes.
I can say that if you need codes use cellunlocker.net , they are pretty legit.

Related

Unlocking phone with code on custom ROM (CM10)?

Is there a way to unlock the phone when running a custom ROM such as CM10? Is it permanent whether or not I flash other or upgraded ROMs in the future?
I am asking all of this knowing my unlock code. I got it from my carrier but when I use the secret GSIII codes along with my unlock code I get an error. I assume its because I am on CM10. Is there a way to do this without putting another SIM in my phone.
I am asking this because I want to verify my unlock before traveling and getting a foreign SIM inserted.
Thank you.
I've had this issue myself. You must unlock on stock rom or else it won't work.
sweetsimplistic said:
I've had this issue myself. You must unlock on stock rom or else it won't work.
Click to expand...
Click to collapse
Even if you're on the stock ROM, the code that you type in to get to the unlock prompt won't work. The only way to do it is to insert another carrier's SIM &turn on the phone. It will then prompt you for the unlock code. Type it in and voila.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Oops the previous poster added info I forgot to add! Stock rom + another carrier's SIM card and you're good to go! The other carrier's SIM doesn't even have to be active or if you don't have another SIM, you can easily pick up a prepaid SIM for about $5-$10.
sweetsimplistic said:
Oops the previous poster added info I forgot to add! Stock rom + another carrier's SIM card and you're good to go! The other carrier's SIM doesn't even have to be active or if you don't have another SIM, you can easily pick up a prepaid SIM for about $5-$10.
Click to expand...
Click to collapse
Thanks for adding that.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Thanks for the info.
So after unlock flashing ROMs will still have it unlocked right?
Also for my reference, for those in the US, will a T-mobile micro SIM prepaid card that I can buy can be used to verify my unlock on my AT&T Samsung GS3?
Thanks.
magistrateee said:
Thanks for the info.
So after unlock flashing ROMs will still have it unlocked right?
Also for my reference, for those in the US, will a T-mobile micro SIM prepaid card that I can buy can be used to verify my unlock on my AT&T Samsung GS3?
Thanks.
Click to expand...
Click to collapse
Yeah. Any SIM will verify it. And yes, when it's unlocked, it's unlocked. No matter what ROM you flash, it will be unlocked.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
third time is a charm! After two tries it finally worked for me. this time I made sure that I called at a time that it would be hard for me to get a US rep(2:00 AM EST).
This time I got a mexican rep, she was so nice and fast. no questions asked, just the IMEI and 3 minutes later she gave me the code. Also, I am on CM10.0.0 stable and it worked by just putting a alien SIM card and entering the code.
Unlocking ROM'd Captivate?!
So, with your note below you are saying that even with another ROM you can unlock a phone, say the Captivate(i897), by just getting a friendly non-US based AT&T help desk person!?
DJBBOX said:
third time is a charm! After two tries it finally worked for me. this time I made sure that I called at a time that it would be hard for me to get a US rep(2:00 AM EST).
This time I got a mexican rep, she was so nice and fast. no questions asked, just the IMEI and 3 minutes later she gave me the code. Also, I am on CM10.0.0 stable and it worked by just putting a alien SIM card and entering the code.
Click to expand...
Click to collapse

Network unlock HTC One X without code?

Hi,
Have a UK based HTC One X. This is currently locked to T-Mobile. Want to network unlock phone. Unlock code supplied does not work. Have tried a number of phone shops but none can unlock it.
Has anyone come across a way to unlock phone without a code????
Many Thanks
Student 1 said:
Hi,
Have a UK based HTC One X. This is currently locked to T-Mobile. Want to network unlock phone. Unlock code supplied does not work. Have tried a number of phone shops but none can unlock it.
Has anyone come across a way to unlock phone without a code????
Many Thanks
Click to expand...
Click to collapse
ask from T-Mobile the code and you must complete stock rom and stock recovery
Thant said:
ask from T-Mobile the code and you must complete stock rom and stock recovery
Click to expand...
Click to collapse
T-Mobile charge £20. Also, reading on the internet, many are having probs getting the code from T-Mobile - waiting months and when code arrives does not work, etc... Don't really want to go through all this hassle with T-Mobile and also pay them £20 to mess me around.
Is there any way to network unlock the HOX without a code ???
Take it to a t-mobile store
I was on T-Mobile UK and sim unlocked it the day I bought the phone. The code worked on stock ROM. I'm using the phone on Vodafone now.
I had used http://www.mobileunlocked.co.uk
Sent from my Nexus 7

[Q] HTC one m9 unauthorized sim card

Hello guys, sorry to bother. I am contacting you to see if someone can help me, i´ve searched and searched the web without any luck. Almost three weeks ago i got here in Mexico an HTC one M9 from Telcel, I have two mobile phones two lines one telcel one iusacell. I needed to change the iusacell phone but did not like what they had. I got the telcel phone HTC one m9, and it was unlocked from telcel, i put my iusacell sim and worked great. Strangely after two weeks, the screen intact, with not a bump and a glass cover, internally failed and i sent it to a authorized center from the provider, they sent it to HTC and HTC sent me a brand new phone.
This new HTC one m9 works perfect with the telcel chip, i inserted the iusacell chip and it gave me message "UNAUTHORIZED SIM CARD, EC calls only". I assumed it was normal, went and bought the unlock code and tried to enter it, but i noticed it never popped the network unlock screen, it always pops the UNAUTHORIZED SIM CARD EC CALLS ONLY" message on the main screen and the only thing it lets me do with the iusacell chip is place emergency calls. no codes, not even to check imei.
I´ve been looking for support with no help, when entering the unlock code and hitting call (no ok button) it tells me its not an emergency call.
Searching i found that its probably that in the service menu (mode) they deactivated the network unlock screen, but i have not found how to get into the service mode of the phone, everywhere for older htcs they say its *#0011# but no luck, the only codes that work are the *#*#4636#*#* and the 3424 but none of them help me.
What can i do? I prefer to use my iphone for that line and use this phone for my other line which is on a different carrier.
Any ideas or help?
cheers and thanks
Ivan
They gave you a new phone, new motherboard and it's not unlocked. I would assume. It'll probably need to be simple unlocked again. With the first phone you had to request that it be unlocked right?
grim489 said:
They gave you a new phone, new motherboard and it's not unlocked. I would assume. It'll probably need to be simple unlocked again. With the first phone you had to request that it be unlocked right?
Click to expand...
Click to collapse
Strangely enough the first phone i bought came unlocked, i had purchased online the unlock code but when i inserted another sim i did not require it. The problem with this replacement M9 is that although i´ve already bought the unlock code the screen never prompts for the network unlock code. When i insert a different sim that from the carrier (telcel) it prompts an "UNAUTHORIZED SIM CARD; ER CALLS ONLY", i´ve inserted IUSACELL MEXICO SIM, ATT USA SIM
TMOBILE USA SIM all with the same result.
cheers
Ivan
I know with the T-Mobile phones, or at least I'm pretty sure, we have to flash an international rom to get that screen to come up. Kinda sucks but maybe that's the problem?
grim489 said:
I know with the T-Mobile phones, or at least I'm pretty sure, we have to flash an international rom to get that screen to come up. Kinda sucks but maybe that's the problem?
Click to expand...
Click to collapse
Thanks I was considering it, i think its a possibility, although, i havent searched much but there is still no way to free the bootloader of an HTC one M9 and im sure myne is pretty locked up =(
cheers Ivan
You can unlock it or s-off , but a-off is $25. Unlock is free on HTC Dev unlock. It's pretty easy, have you used HTC dev unlock before?
grim489 said:
You can unlock it or s-off , but a-off is $25. Unlock is free on HTC Dev unlock. It's pretty easy, have you used HTC dev unlock before?
Click to expand...
Click to collapse
thanks yes i´ve used it before, but HTC still does not list as an option the M9, only the M9
cheers
Ivan
It works I've used it. You have to select the very bottom option, it says something like all other models
grim489 said:
I know with the T-Mobile phones, or at least I'm pretty sure, we have to flash an international rom to get that screen to come up. Kinda sucks but maybe that's the problem?
Click to expand...
Click to collapse
I finally got the bootloader unlocked, root and s-off, now the question would be what rom should i flash in order to get the unauthorized sim card message out when i insert a different carrier sim, so the network unlock screen pops and i am able to enter the unlock code?
cheers and thanks
Ivan
ivanaesc said:
I finally got the bootloader unlocked, root and s-off, now the question would be what rom should i flash in order to get the unauthorized sim card message out when i insert a different carrier sim, so the network unlock screen pops and i am able to enter the unlock code?
cheers and thanks
Ivan
Click to expand...
Click to collapse
I used ARHD to unlock my T-Mobile m9. Prior to that I also wasn't getting the option of putting in sim unlock code similar to yours. However once you flash and sim unlock it, you can flash any rom and the sim unlock will stick. Good luck.
Sent from my HTC One M9 using XDA Free mobile app
Thanks =) i did manage to get a new rom into it ARHD and interesting enough when inserting a different carrier sim now I do get the network unlock code screen. I tested the pin i had bought and it did not work, I asked and they told me they will try to find it out. I did try a few more services to buy the code but they all tell me that they cannot find my IMEI in their database. This i find really strange, does anyone know what can it be? I need to unlock since i will be travelling to the USA and want to put a prepaid card into my phone.
cheers
Ivan
I had the same problem as you. My HTC was originally from T-Mobile, I unlocked bootloader, flashed latest TWRP recovery, rooted and S-off'ed. After that I also set CID to BS_US001 and MID to 0PJA11000
After that downloaded Developer Edition RUU from http://forum.xda-developers.com/att-one-m9/general/att-developer-edition-ruu-how-to-t3086948 (use the 1.32.617.30 RUU.zip, using the 0PJAIMG.ZIP method), after that you will be prompted to insert unlock code and receive latest updates, hope it helps!
---------- Post added at 11:45 PM ---------- Previous post was at 11:40 PM ----------
This is for not found service, http://www.ebay.com/itm/HTC-not-found-Unfound-unlock-code-for-Telus-Kado-Wind-Bell-solo-AT-T-T-mobile-/281679367246?pt=LH_DefaultDomain_2&hash=item4195660c4e
If you already bought and received an unlock code there is a big probability that you had a typo with your imei maybe. Usually when you receive an unlock code they tend to always work. Hope it helps
Hold on there's a tested and working free sim unlock in here somewhere! I have used it and multiple others, let me try to get the link.
http://forum.xda-developers.com/showthread.php?t=3143333
Sent from my HTC One M9 using Tapatalk

How to Sim unlock HTC ONE M8?

**I'm an amateur at posting threads **
First I tried to SIM unlock by paying but none of those codes were working, after I rooted my phone, followed some threads and tutorials but none of them worked.
Any solution?
HTC ONE M8 :
-Android Version : 5.0.1
-Phone is European ( I am located in Europe)
Quantix said:
after I rooted my phone, followed some threads and tutorials but none of them worked.
Click to expand...
Click to collapse
If you are trying tutorials for other phones, they won't work; and you should stop doing that.
The only "mod" or "hack" (free) method to unlock the SIM on the M8 required s-off. And it no longer works on Lollipop.
Paid unlock services are probably your best bet. What pay sites did you try? I've seen cellunlocker.net recommended by various XDA members, but I've never used it myself (and can't personally vouch for the service). And those recommendations were on the One X (EVITA) so I'm not sure how well they can unlock the M8.
redpoint73 said:
If you are trying tutorials for other phones, they won't work; and you should stop doing that.
The only "mod" or "hack" (free) method to unlock the SIM on the M8 required s-off. And it no longer works on Lollipop.
Paid unlock services are probably your best bet. What pay sites did you try? I've seen cellunlocker.net recommended by various XDA members, but I've never used it myself (and can't personally vouch for the service). And those recommendations were on the One X (EVITA) so I'm not sure how well they can unlock the M8.
Click to expand...
Click to collapse
I tried UnlockRiver. They sent me the unlock code but it didn't work, It's because they said it is a newer version of phone.
Quantix said:
I tried UnlockRiver. They sent me the unlock code but it didn't work, It's because they said it is a newer version of phone.
Click to expand...
Click to collapse
I'd suggest another service, possibly a few. They can be a bit hit or miss with getting a working code on some of these devices.
SuperCID
redpoint73 said:
I'd suggest another service, possibly a few. They can be a bit hit or miss with getting a working code on some of these devices.
Click to expand...
Click to collapse
I am wondering about SIM unlocking my AT&T variant to use over sees. I currently have SuperCID but wasnt sure if that accomplished basically the same thing as SIM unlock. Thanks.
thelangosta said:
I am wondering about SIM unlocking my AT&T variant to use over sees.
Click to expand...
Click to collapse
Go to AT&T's website, and fill out the form to get the unlock SIM code. I don't even think you need to be an ATT customer to do this. Although sometimes, folks have had problems with the device's IMEI not being found in the database.
I think a law was passed within the last couple years, that US carriers need to allow customers to SIM unlock their phones.
thelangosta said:
I currently have SuperCID but wasnt sure if that accomplished basically the same thing as SIM unlock. Thanks.
Click to expand...
Click to collapse
This worked (SuperCID gave SIM unlock) early on when the phone released, but hasn't been the case for quite a while now.
You can try S-OFF.
1: Unlock yoru bootloader with htcdev
2: Flash twrp and SuperSU
3: Install SunShine S-OFF apk ( from: theroot.ninja )
4: And your phone is Sim Unlocked
5: http://forum.xda-developers.com/showthread.php?t=2735235 use this to back 100% stock EU
6: Use One_M8_All-In-One_Kit_v and click Command: Return to S-ON
Your phone is 100% Stock, you have a waranty and your phone is Sim unlocked.
czifraj2 said:
You can try S-OFF.
1: Unlock yoru bootloader with htcdev
2: Flash twrp and SuperSU
3: Install SunShine S-OFF apk ( from: theroot.ninja )
4: And your phone is Sim Unlocked
5: http://forum.xda-developers.com/showthread.php?t=2735235 use this to back 100% stock EU
6: Use One_M8_All-In-One_Kit_v and click Command: Return to S-ON
Your phone is 100% Stock, you have a waranty and your phone is Sim unlocked.
Click to expand...
Click to collapse
S-off does NOT automatically sim unlock the phone ! And next time read the comments above yours !!!
Mr Hofs said:
S-off does NOT automatically sim unlock the phone ! And next time read the comments above yours !!!
Click to expand...
Click to collapse
I used S-OFF ago a 2 hours! I have got a Hungarian Vodafone phone and now this phone Unlocked I try Hungarian T-Mobile sim card and Hungarian Telenor sim card and worked! I can call and send sms and i have a mobile data... So?
czifraj2 said:
I used S-OFF ago a 2 hours! I have got a Hungarian Vodafone phone and now this phone Unlocked I try Hungarian T-Mobile sim card and Hungarian Telenor sim card and worked! I can call and send sms and i have a mobile data... So?
Click to expand...
Click to collapse
Did you try other carrier SIMs before you were superCID? It may have worked then as well. It seems there is a good chance that you bought an unlocked phone.
czifraj2 said:
I used S-OFF ago a 2 hours! I have got a Hungarian Vodafone phone and now this phone Unlocked I try Hungarian T-Mobile sim card and Hungarian Telenor sim card and worked! I can call and send sms and i have a mobile data... So?
Click to expand...
Click to collapse
So nothing, there is no proof that it was locked anyway. I know my stuff just like redpoint. My previous comment stays.
Who says it you haven't gotten a refurbished one, maybe it was factory unlocked already. Even new phones are shipped with s-off already !
I (we) have seen so many carrier locked threads here that i can tell you that s-off does not give you carrier unlock features. There is more needed and the tutorial that was active doesn't work anymore ! I'm long enough around here to say that with a 200%......
Have you even been reading up on this topic, did you have a read here about what's needed to achieve sim unlock ?
http://forum.xda-developers.com/showthread.php?t=2708567
So.......
Mr Hofs said:
S-off does NOT automatically sim unlock the phone !
Click to expand...
Click to collapse
I agree to this; and also to the notion that the device was probably just SIM unlocked to begin with.

Need help network unlocking, flashed to stock

I got a new phone, the LM-G820UM AT&T version. I followed this guide: https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/ to flash the stock firmware. With my SIM card in it says "network locked", it doesn't prompt for the unlock code. I have the unlock code and I've tried the various unlock commands (2945#*71001# and 2945#*20001#), but nothing comes up when I do these. Do I need to get it back to the AT&T firmware to be able to unlock it? If so, how can I do this?
gunnerone007 said:
I got a new phone, the LM-G820UM AT&T version. I followed this guide: https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/ to flash the stock firmware. With my SIM card in it says "network locked", it doesn't prompt for the unlock code. I have the unlock code and I've tried the various unlock commands (2945#*71001# and 2945#*20001#), but nothing comes up when I do these. Do I need to get it back to the AT&T firmware to be able to unlock it? If so, how can I do this?
Click to expand...
Click to collapse
wow, yeah, that's unfortunate. First, yes, it's the at&t firmware that the unlock code works with, not any other firmware.
second, at&t doesn't make their kdz available, so you have no easy way to get back to their firmware.
you might get lucky and find someone who has backed up all their partitions from at&t. Then u would flash ea one back via qfil.
Important lesson: don't buy a locked phone. if u get a locked phone, don't to anything to the firmware until u unlock the phone.
cheers
@AsItLies would this phone work in it's current state with AT&T?
gunnerone007 said:
@AsItLies would this phone work in it's current state with AT&T?
Click to expand...
Click to collapse
To the best of my knowledge, no. At&t is one of the carriers that has restrictions for their networks. Last I read (have never used them personally), they only allow phones that have their IMEI (they check that), and it's using their ROM, to access volte and vowifi.
so, would it work? yes and no. Volte and Vowifi may or may not be important to you.
Additionally, I'm absolutely no expert with at&t, so u might just try and find out, my info could be outdated.

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