Sim lock questions - AT&T HTC One (M7)

Hi,
I bought a htc one AT&T unlocked, now can I update my android version, rooted my phone and flash custom rom without losing the sim unlock?
And how can I re-unlock manually without a number code?
Thanks and sorry for my bad english

rs9000 said:
Hi,
I bought a htc one AT&T unlocked, now can I update my android version, rooted my phone and flash custom rom without losing the sim unlock?
And how can I re-unlock manually without a number code?
Thanks and sorry for my bad english
Click to expand...
Click to collapse
Once you sim-unlock your phone it will stay that way no matter what you flash. The only time the sim gets locked is if you get a new phone.

xeni said:
Once you sim-unlock your phone it will stay that way no matter what you flash. The only time the sim gets locked is if you get a new phone.
Click to expand...
Click to collapse
I understand, so where is phisycally the block? How it work?

Related

Will I loose SIM unlock if I flash Cingular ROM?

I have SIM unlocked 3125 but it has really old OS, so I would like to upgrade. Will flashing Cingular ROM make my phone SIM-locked again? I have a feeling it would but still hoping to avoid having to pay for unlocking already unlocked phone
PS. Sorry if it is an obvious question - I did use search.
noob4eva said:
Will I loose SIM unlock if I flash Cingular ROM?
Click to expand...
Click to collapse
No.
blablabla
Thank you, I'll try this upgrade.
Спасибо!

SIM Unlocked x10 - does update re-lock?

I have a Rogers branded x10 that I'm currently using with Fido. I'm interested in updating to the newest firmware, but I want to ensure that I don't lose my SIM unlock in the process.
Can someone please confirm?
No it won't.
I presume that you have unlocked it by code.
ferraripassion said:
No it won't.
I presume that you have unlocked it by code.
Click to expand...
Click to collapse
Thanks for the quick reply.
Yes it's by code, I sent my IMEI to this website and they provided me with a code.
once you are unlocked it wont relock, even if you root or flash different roms
ferraripassion said:
No it won't.
I presume that you have unlocked it by code.
Click to expand...
Click to collapse
hi, I recently take my x10 to a guy to unlock it, now it has stock firmware whit eclair, my doubt is because I don't know what method used this guy who unlocked the phone, so if it was a different from code method, can it be locked again?
sorry for my english
16navi said:
hi, I recently take my x10 to a guy to unlock it, now it has stock firmware whit eclair, my doubt is because I don't know what method used this guy who unlocked the phone, so if it was a different from code method, can it be locked again?
sorry for my english
Click to expand...
Click to collapse
Hmmm......well I'm not too sure but I think you should ask him. But if you use flashtools to unlock it it should be fine according to me. But ask him or wait for someone who knows for sure.
Sent from my X10i using xda app-developers app
16navi said:
hi, I recently take my x10 to a guy to unlock it, now it has stock firmware whit eclair, my doubt is because I don't know what method used this guy who unlocked the phone, so if it was a different from code method, can it be locked again?
sorry for my english
Click to expand...
Click to collapse
there are two types of unlock.
1) sim unlocking to use different network carriers
2) bootloader unlocking - to use different custom kernel nd roms for unlocked bootloader
as for sim unlocking, once you do it, it will not relock whatever you do
if you are planning to unlock your bootloader be sure that you have SETOOL sim certificate or SEMC sim certificate as stated in this guide: http://forum.xda-developers.com/showpost.php?p=19685019&postcount=7

[Q] About Unlocked and Roms

Well my case is like this!
I'm looking to buy a motorola photon online,it was on spring and it suposed to be unlocked for every carrier. i'm from mexico, we use telcel.
The motorola photon only comes with GB android, and i've always like to modify my phones with roms, root, etcs.
Before i do any transaction i'd like to know if i can instal ICS roms or any other cooked roms without loosing the unlocked carrier?.
I know that theres a lot of ways on unlocking carriers like imei and other programs, but if i loose it, the unlocking is gonna cost me something?
Unlocking the bootloader is only to install roms? or i can do an unlocking carrier by unlocking the bootloader? it cost me anything?
This method by Lokifish Marz is to unlock bootloader or carrier???
http://forum.xda-developers.com/showpost.php?p=20331623&postcount=6
I had been investigating about that but i dont find an straight anwser! im sorry if this looks to newbish, i know if i open the bootloader i can install another kernels and roms, but i loose the 4G :crying::crying: and if the cel is 2.3.5 it can´t be unlocked! it has to be downgrade!
i hope you can helpme! thanks a lot!
Txuy said:
Well my case is like this!
can instal ICS roms or any other cooked roms without loosing the unlocked carrier?.
Click to expand...
Click to collapse
unlocking bootloader and installing a custom rom will not make you lose sim unlock
Txuy said:
the unlocking is gonna cost me something?
Click to expand...
Click to collapse
sim unlocking is usually only possible via SOLD sim unlock codes so yes, if you need to sim unlock you have to pay
Txuy said:
Unlocking the bootloader is only to install roms?
Click to expand...
Click to collapse
unlocking the bootloader is done to be able to flash custom recovery, custom ROMs and custom Kernels, improving the performance and usability of your device
Txuy said:
or i can do an unlocking carrier by unlocking the bootloader? it cost me anything?
Click to expand...
Click to collapse
bootloader unlocking and carrier unlocking are not related. bootloader unlocking can be done for free by yourself with the help of the info here in XDA. SIM unlocking requires a code you usually have to buy.
Txuy said:
This method by Lokifish Marz is to unlock bootloader or carrier???
http://forum.xda-developers.com/showpost.php?p=20331623&postcount=6
Click to expand...
Click to collapse
unlock bootloader
Txuy said:
I had been investigating about that but i dont find an straight anwser! im sorry if this looks to newbish, i know if i open the bootloader i can install another kernels and roms, but i loose the 4G :crying::crying:
Click to expand...
Click to collapse
losing 4G shouldn't be of much concern to you. Telcel doesn't use WIMAX 4G so you wouldn't have had any use to it anyway.
Txuy said:
and if the cel is 2.3.5 it can´t be unlocked! it has to be downgrade!
Click to expand...
Click to collapse
if the cell is 2.3.5 already it cannot be unlocked and you CANNOT downgrade it because you risk HARD brick
The sim is only locked in US.
All other sims work.
But stuck on GB. Even if you could flash ICS the photons kernel is so old the video doesn't work well.
Sent from my MB855 using xda premium

[Q]

hi
i today got this phone im not verizon user & using it in gsm network
my phone is sim unlock and works well on gsm & s off by defult
my question is if i flash it by ruu or custom rom it will be locked or not?
kralkral said:
hi
i today got this phone im not verizon user & using it in gsm network
my phone is sim unlock and works well on gsm & s off by defult
my question is if i flash it by ruu or custom rom it will be locked or not?
Click to expand...
Click to collapse
Flashing a rom or RUU won't remove s-off, as long as it's s-off, doesn't matter if the bootloader is locked or not.
mjones73 said:
Flashing a rom or RUU won't remove s-off, as long as it's s-off, doesn't matter if the bootloader is locked or not.
Click to expand...
Click to collapse
i mean simlock {not bootloader or s off}
kralkral said:
i mean simlock {not bootloader or s off}
Click to expand...
Click to collapse
I don't know of any way to lock the sim, I'll have to leave it up to the GSM experts to answer.
I suggest you update your subject with that question instead of just a Q...
The Rezound does not have SIM lock... Never did. no amount of flashing anything will lock it.
Sent from my Nexus 4 using Tapatalk

Unlocking with unlock code from ATT

I have got unlock code from ATT to unlock my device to use the phone out side ATT network. Right now I am on lollipop ROM and when I insert a different sim and enter the code it says cannot unlock.
Do I need to be on stock rom to use the unlock code?
TIA.
atrix4nag said:
I have got unlock code from ATT to unlock my device to use the phone out side ATT network. Right now I am on lollipop ROM and when I insert a different sim and enter the code it says cannot unlock.
Do I need to be on stock rom to use the unlock code?
TIA.
Click to expand...
Click to collapse
Yes, you need to unlock the device with the stock rom installed.
majmoz said:
Yes, you need to unlock the device with the stock rom installed.
Click to expand...
Click to collapse
Do you suggest any in particular?
rooted stock rom should be fine right?
atrix4nag said:
Do you suggest any in particular?
rooted stock rom should be fine right?
Click to expand...
Click to collapse
I don't know your particular setup but if you are on AT&T then use clsA's Stock Rom Reset.
majmoz said:
I don't know your particular setup but if you are on AT&T then use clsA's Stock Rom Reset.
Click to expand...
Click to collapse
I had ARHD downloaded on my phone, so installed it and successfully unlocked my phone. So root doesnt matter for applying unlock code.
Thanks for guiding me correctly..
atrix4nag said:
I had ARHD downloaded on my phone, so installed it and successfully unlocked my phone. So root doesnt matter for applying unlock code.
Thanks for guiding me correctly..
Click to expand...
Click to collapse
A little bit late to all this I just got the M7 . I did not think to unlock before flashing and rooting. So in order to unlock the carrier restriction I have to be back on stock and then enter the code that AT&T gives me?

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