TMobile MDA Unlock, is it permanent? - Touch Diamond, MDA Compact IV General

I recently ordered an unlock code from TMobile UK and have successfully unlocked my phone. The question is whether it remains unlocked forever or will it lock again when I update to a new ROM (official or cooked).
Thanks in advance

or by hard restart
does it remain unlocked after a hard reset?

as far as I know when you ordered a unlock code from T-Mobile then it is a sim unlock number to allow you to use other providers in the phone the CID lock is is still there .Still after a hard reset your unlock from T-moblie you should still be able to use other sim cards from other providers

So basically keep my code safe???
Is that what you are saying? That I will need to unlock again when I update with a new ROM?
If so, I'd better keep a note of the Unlock code!
Thanks to everyone who responded.

Related

Unlock Code Passed

I just entered the unlock code I received from ATT and got the message unlock code passed. I take it that this means its unlocked? Is it a permanent unlock?
FuSchnickens said:
I just entered the unlock code I received from ATT and got the message unlock code passed. I take it that this means its unlocked? Is it a permanent unlock?
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I believe that it is a permanent unlock - however - please read the WIKI and do not confuse UNLOCK with HARDSPL if you are going to FLASH ROMS.
Bill
what was the exact code or numbers you used to unlock the phone...because some of the #'s for unlock just unlock the service providers branded lock but the other codes unlock the phone period
if the code is from AT&T, then its for permanent sim unlock and you can use other sims. no more, no less
Yes the code is directly from ATT. I told them I'd be doing some international travel and wanted the option of putting in a european sim card while there.

question on unlocking and rooting

i've searched, couldn't find exactly what i was looking for. anyhow, i have a g1 and att service. i have the tmobile provided unlock code and it's unlocked. if i root and reflash with custom rom, i understand it will lock the phone again, would i be able to unlock it with the same unlock code?
Once sim unlocked it will not lock again.. the sim lock it stored outside any user flashable part of the phone.

[Q] will a Hard reset relock my unlocked hd7 t-mobile

thanks for this great forum, and i'm waiting for your help. i searched in google but found nothn satisfactory
as a addition, i don't have the unlock code...
If your referring to the SIM Unlock so you can use another SIM Card in your device then NO, a Hard Reset will NOT relock you device to one carrier.

[Q] unlock bootloader in SIM locked phone

I couldn't find anything by searching the older threads so here is my question:
Is it possible (and reasonably save) to try and unlock the bootloader in a SIM locked x8? Just to clarify: I don't want to remove the SIM lock from my phone - I'm happy with my current provider. I'm just wondering if I can unlock the bootloader while I still have a SIM lock on my phone.
All the threads about unlocking seemed to be concerned about how the phone was SIM unlocked rather than whether it was actually necessary...
Thanks a lot in advance..!
anyone please?
I just want to know if I can unlock my bootloader while I still have a SIM lock in place. Or will I brick my phone then? I don't want to remove the SIM lock. Just flash a custom kernel so I can get proper wifi tether...
same question... now,why is necessary have unlocked by operator the phone ???
is very maddening D:
so so please developers unlock bootloader with phone locked by operator, many peoples will thank you
reggards

SIM Unlock Reset by HTCDev Bootloader Unlock

Basically, I have an ATT branded M7 that should have been carrier unlocked. First thing I did was complete the HTCdev unlock to install TWRP and supersu. I completed a SIM swap from a mini-SIM to the micro-SIM for this phone and it is asking for the network password which the provider is telling means that it is not carrier unlocked? Could the HTCdev unlock caused this? Seems like the SIM unlock is in a different area of the boot loader that requires s-off so I think no. Need to contact the eBay seller but anyone have any other suggestions? Is S-off and unlock the only option for a permanent SIM unlock?
genseng said:
Basically, I have an ATT branded M7 that should have been carrier unlocked. First thing I did was complete the HTCdev unlock to install TWRP and supersu. I completed a SIM swap from a mini-SIM to the micro-SIM for this phone and it is asking for the network password which the provider is telling means that it is not carrier unlocked? Could the HTCdev unlock caused this? Seems like the SIM unlock is in a different area of the boot loader that requires s-off so I think no. Need to contact the eBay seller but anyone have any other suggestions? Is S-off and unlock the only option for a permanent SIM unlock?
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Bootloader unlock and s-off are not related to sim-unlock. You probably got scammed by the seller, but sim-lock can be removed easily using a sim-unlock code which you can buy online (for really cheap). So it might not worth wasting your time contacting the seller.
There is another method to sim-unlock that require s-off(sieempi)
Sim-unlock is permanent even if you unlocl/relock bootloader or if you turn security on/off (s-on/s-off)
Thanks for confirming. Is there anyway to determine if it has been hardlocked?
genseng said:
Thanks for confirming. Is there anyway to determine if it has been hardlocked?
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what are you talking about? Hardlocked?
Something about if an incorrect code 10 times there's another layer of locks (found AT&T page that references PUK and PUK2 codes). Are those different than the carrier lock we're discussing? Found a cheap code on eBay. Ordered it, will find out shortly I guess.
genseng said:
Something about if an incorrect code 10 times there's another layer of locks (found AT&T page that references PUK and PUK2 codes). Are those different than the carrier lock we're discussing? Found a cheap code on eBay. Ordered it, will find out shortly I guess.
Click to expand...
Click to collapse
AFAIK (I'm not an expert on this) PUK codes are used to unlock the device when a wrong PIN was entered to many times in an attempt to access the device. PUK (Pin Unblock Key = Personal Identification number unblock Key) locks the device on a lower level or/and the sim card can become locked (preventing access to data stored on the card) but this have nothing to do with sim-lock that are locking your phone to a specific carrier.
Im not even sure if PUK is still used, ppl just reset their PIN using their google account or they are performing factory reset....
purchase the sim-unlock code, insert the new sim card, enter the code when prompted.
Thanks for the explanation. I did manage to test the new SIM in another phone and it worked and another known good SIM resulted in the same error (new info since OP). Maybe I should have paid more for 15 minute service... ?
Purchased unlock code did the trick.
genseng said:
Purchased unlock code did the trick.
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:good:

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