AT&T Lumia 640 ROM Flashing - Windows Phone 8 Q&A, Help & Troubleshooting

If I developer unlock this, can I flash the T-Mobile ROM? Or is each ROM locked to the product ID?

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Just unlocked the SIM; Can I flash to another ROM (from UK to NOR)?

Hi friends
Ok, I'm a newbie here. I just unlocked my SIM on my HTC Blackstone (the phone was locked to Orange UK). Is it possible to flash the ROM to a norwegian ROM without bricking the phone?
Regards
SIM lock is not the same as CID lock
CID=Carrier ID
This means that only ROMs from the specific carrier you are locked to can be flashed.
There is currently no CID-unlocker/Hard-SPL available whick allows you to flash other ROMs than your own CID.
Best regards,
EqX

carrier unlocked question

If someone has a T-Mobile carrier unlocked moto x can they unlock the boot loader (T-Mobile let's you) and then use it on att without any I issues?
Pwnicorn said:
If someone has a T-Mobile carrier unlocked moto x can they unlock the boot loader (T-Mobile let's you) and then use it on att without any I issues?
Click to expand...
Click to collapse
You don't have to unlock the bootloader to use it on att. Unlocking the bootloader just give you options for a custom recovery and flashing roms, etc.
The unlocked version is just that. You can put any gsm Sim card you want in it and it will work. LTE will vary according to the carrier you put it on with regards to frequencies used.
Sent from my XT1053 using xda premium
chrstndsgnr said:
You don't have to unlock the bootloader to use it on att. Unlocking the bootloader just give you options for a custom recovery and flashing roms, etc.
The unlocked version is just that. You can put any gsm Sim card you want in it and it will work. LTE will vary according to the carrier you put it on with regards to frequencies used.
Sent from my XT1053 using xda premium
Click to expand...
Click to collapse
Yeah, I wanted to know if could also unlock the boot loader because the att model is unlockable. But a T-Mobile can have an unlocked bootloader and if it is unlocked carrier as well then you could have a non developer custom moto x with unlocked boot loader on att. Just curious if it us possible.
To answer your question: yes, you can unlock the bootloader. Doing so will void your warranty unless you buy the developer edition though.
Sent from my XT1053 using xda premium

"Re-Brand" AT&T Lumia 640

Hello,
I unbranded my Lumia 640 using this guide http://forum.xda-developers.com/windows-phone-8/general/brand-att-lumia-640-lte-t3294971 and am wondering if it was possible to "re-brand" the device. When trying to flash the FFU of the AT&T ROM, the Platform ID doesn't have the _ATT at the end so it won't flash. Can I "re-brand" the device or is it stuck like this?
Thank you.

Bootloader & Sims Unlocked Stock AT&T 4.4.X Moto X, precaution to take for update ?

Bootloader & Sims Unlocked Stock AT&T 4.4.X Moto X, precaution to take for update ?
Hi, i got this AT&T Moto X (Ghost) running stock 4.4.X with already unlocked bootloader and sim unlocked from ebay year ago. The one was starting to be very energy unefficiant, battery was not lasting while in sleep mode for all the day. Ordered a new battery and my step father allowed me to change the roms. So i plan to install mokee 5.1.1 because it would be use with car bluetooth for call.
My question's the following, i used titanium backup to freeze update year ago, since mokee 5.1.1 need the 5.1 modem from AT&T, how do i manually update this model ? I live in Canada and the network's Rogers, so it need to stay sim unlocked and i since i want to change roms, i don't want to lose the bootloader unlock. There's that thread in dev that got all official 5.1 stock roms, if i take the roms and flash it on lastest twrp, do i keep sims & bootloader unlocked ? Thank you.
flashing the stock firmware doesn't effect the bootloader but yes some At&t moto x sim locked after update to lollipop [emoji517]
So safely you have to flash modem (non-hlos.bin) and fsg.mbn
Note : some moto x At&t after relocked will not unlock with official unlock code then you have to use unlocking tools
So be careful
Br
Shahzaib Jahangir
#Unlockerplus
Shabby The Dev said:
flashing the stock firmware doesn't effect the bootloader but yes some At&t moto x sim locked after update to lollipop [emoji517]
So safely you have to flash modem (non-hlos.bin) and fsg.mbn
Note : some moto x At&t after relocked will not unlock with official unlock code then you have to use unlocking tools
So be careful
Br
Shahzaib Jahangir
#Unlockerplus
Click to expand...
Click to collapse
Do you means i cannot update the modem without losing the sims unlock ? ATM, i only plan to flash an updated modem and a custom roms. The customs roms i want to use require the new modem for lolipop. I have been using the search function on xda for hour and doing search on google without anybody saying anything about flashing new modem for AT&T Moto X. If the Sims get locked again, how do i unlock my Sims to use in Canada ? Thank you.
Atari-San said:
Do you means i cannot update the modem without losing the sims unlock ? ATM, i only plan to flash an updated modem and a custom roms. The customs roms i want to use require the new modem for lolipop. I have been using the search function on xda for hour and doing search on google without anybody saying anything about flashing new modem for AT&T Moto X. If the Sims get locked again, how do i unlock my Sims to use in Canada ? Thank you.
Click to expand...
Click to collapse
If unfortunately your moto x get locked and not accepting any unlocking codes so it doesn't matter there is many paid tools which unlock your phone if you don't have those tools so give it to any software service center tell them that after update it was locked and they will unlock it easily
Br,
Shahzaib Jahangir
#Unlockerplus
Ok, which tools can i use to unlock sim for free in the case it get locked back again. I don't want to say to my step father that i fudged the updating process after i did it successfully a lot of time for year.

ATT Flash xt1097

A query . I can flash any firmware for example if the factory is the att xt1097, I can flash the firmware brazil retail ??? do not miss the imei nor is there any problem ???
what bug presents android 6 on the bike x2? Is it worth updating to that version?
kayserxx said:
A query . I can flash any firmware for example if the factory is the att xt1097, I can flash the firmware brazil retail ??? do not miss the imei nor is there any problem ???
what bug presents android 6 on the bike x2? Is it worth updating to that version?
Click to expand...
Click to collapse
You can flash any xt1097 rom marshmallow if you have bootloader unlocked.
Brazil is xt 1097 too so is the same rom with the same band suport.
Any Help to unlock the charger of my motorola moto xt1097 att?
in the page of motorola I get the following message: Your device does not qualify for bootloader unlocking
kayserxx said:
Any Help to unlock the charger of my motorola moto xt1097 att?
in the page of motorola I get the following message: Your device does not qualify for bootloader unlocking
Click to expand...
Click to collapse
Some variants cant unlock bootloader.
I dont know whitch are .
Search on google to know what variant cant be unlock and if your in them maybe forget it.

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