Hi guys,
I have Xperia Arc which was locked to 3 UK. I flashed generic firmware from http://forum.xda-developers.com/showthread.php?t=1115542 , rooted it and updated to 2.3.3 The phone is rooted and unbranded now, but it is still locked to the network. If I put another sim card it asks for Sim network unlock PIN. How can I unlock it?
Thanks
Im on 3 and UK there is no way to unlock it except from a code mate. I pm'ed u
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There must be a way around this, it is software issue, I thought the lock was in firmware, but if not, where can it be? is it in bootloader? Or I flashed wrong firmware?
aristarh said:
There must be a way around this
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Click to collapse
Only way is to pay.
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XperienceD said:
Only way is to pay.
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Now I'm really intrigued, why is it not possible? Can anyone explain this?
If XDA wizards have access to firmware source, why they can't remove this lock from there?
Or I know for sure that unlocked smartphones exist, why not to take firmware from them?
This is not a hardware feature (or is it?), so it should be possible to overcome this, am I wrong?
SIM/network locking has nothing to do with firmware/software, hence you can flash any firmware onto any phone and maintain your (un)lock.
It's a lower-level software lock on the radio which is loaded before any firmware.
Think BIOS password on a PC. It locks the PC regardless of what operating system you have on it and is loaded before any OS.
Carrier-branded phones also cannot be bootloader unlocked at the moment, but there aren't any custom ROMs yet so it's not a big issue.
@BluechipJ
Thanks for reply,
Do you mean this is done in the bootloader? I know it is possible to unlock bootloader.
And what do you mean by carrier-branded phones? this phone doesn't have any logos on it. There was carrier splashscreen and a couple of apps but they are gone now after I flashed generic firmware. Is my phone still branded or not?
It is not branded but sim-locked now.
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aristarh said:
@BluechipJ
Thanks for reply,
Do you mean this is done in the bootloader? I know it is possible to unlock bootloader.
And what do you mean by carrier-branded phones? this phone doesn't have any logos on it. There was carrier splashscreen and a couple of apps but they are gone now after I flashed generic firmware. Is my phone still branded or not?
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Click to collapse
No, the radio/network/SIM lock is separate and independent from the bootloader and any firmware.
Carrier-branded means the phone had carrier apps/logo/is sold directly by the carrier. My Rogers arc does not have any physical logos either. It had Rogers applications and splash but like yours, are now gone since I flashed a generic firmware. However, it is still a carrier-branded phone. It was sold directly by a carrier. The bootloader is therefore, locked and cannot be unlocked (yet).
You can go to the Sony Ericsson site (http://unlockbootloader.sonyericsson.com/) and get your unlock key, but there is no way to get into Fastboot mode to enter it (on carrier-issued phones).
Thanks for the explanation.
SIM/network locking has nothing to do with firmware/software, hence you can flash any firmware onto any phone and maintain your (un)lock.
It's a lower-level software lock on the radio which is loaded before any firmware.
Think BIOS password on a PC. It locks the PC regardless of what operating system you have on it and is loaded before any OS.
Click to expand...
Click to collapse
I just thought the other brand(s) of android phones is not as secure as this, that we need to pay for an unlock code. Others can just be sim-unlocked by software!
You can unlock the Phone using the Unlock code,You can get the Unlock code from the site www.theunlockspot.com and unlock it..Then you can use in any Country GSM Carriers.
No! It is possible to unlock the phone with proper simlock.ta cuz I have locked it by flashing it. God damn it!
So it is possible to vice versa.
cool_recep said:
No! It is possible to unlock the phone with proper simlock.ta cuz I have locked it by flashing it. God damn it!
So it is possible to vice versa.
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Click to collapse
So, Did you have success???
Is there a way to reset a permanently network locked phone? Got a used phone and I guess the previous owner tried to sim unlock without success and now that I tried to unlock it it tells me that "This phone is permanently locked and can not be unlocked." I would really appreciate any response.
kornflakez said:
Is there a way to reset a permanently network locked phone? Got a used phone and I guess the previous owner tried to sim unlock without success and now that I tried to unlock it it tells me that "This phone is permanently locked and can not be unlocked." I would really appreciate any response.
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Click to collapse
hey did you solve this problem? I'm in the same situation here :/
DUUUUUUDE I may have a solution!! it WORKED for me, follow this tutorial http://forum.xda-developers.com/showthread.php?t=1784709till step 40 it worked for me!! it did'nt ask me for a code or anything! it just worked! the problem is that the version of android is 2.3.5 korean.... is a temporal solution!! maybe is for the baseband or I DONT KNOW please someone can somebody help us with this! any international ROM or baseband for this phone
TRY IT!! and tell me if it worked for you
dear
when my phone was hard bricked
i was trying to find away to solve this i reached finally to andoid 4.3 the sim card network is locked while it was unlocked
i dont know what to do now
anybody has an idea to fix this
You may have to buy an unlock code for your phone as you cannot use the free method once your phone is on the 4.3 bootloader.
Hey, I am helping out a mate and have run into a bit of a conundrum. He has a ATT LG G4 (H810) that he purchased from America and has recently moved back to Australia. I have offered to help him unlock his phone so I purchased an unlock code online but when I attempted to enter it I got "This phone is permanently locked and cannot be unlocked". The SIM Unlock Process menu could be accessed using 2945#*810# However the network unlock option yields "This phone is permanently locked and cannot be unlocked" and each other option states "Your phone is not personalised".
Currently the phone is on Android Lollipop and I have managed to root it. I would just like to know if there is a possible way to unlock it.
Cheers.
Simple question but can't really find the answer online.
Bought an H815, no carrier label etc. My ATT sim works in it.
I want to unlock the bootloader (OEM process) root, add TWRP and flash custom ROMS. Will this affect the factory unlocked carrier status?
How is it carrier unlocked btw , at the hardware level or bios type process? I see the H815 comes factory carrier unlocked?
tia
Assuming your phone was purchased sim free, then no, bootloader unlock shouldn't affect it. You can always make a backup with SALT first (bootloader can be locked when you take the backup) so if for whatever reason it does get removed then you can restore it.
Btw, LG's don't support fastboot oem unlock. You need to do it via Official LG bootloader unlock website or UsU (look here in the threads) if your device isn't supported officially - if it is an EU H815 it official should work though.
fr eBay sim free. I'll look into the SALT backup.
I did a bit of work already and signed up as an LG dev and do see the LG website process which I was going to do to start.
So then adding TWRP and a custom rom will not affected the carrier unlock as well?
thanks
frodiggs said:
Simple question but can't really find the answer online.
Bought an H815, no carrier label etc. My ATT sim works in it.
I want to unlock the bootloader (OEM process) root, add TWRP and flash custom ROMS. Will this affect the factory unlocked carrier status?
How is it carrier unlocked btw , at the hardware level or bios type process? I see the H815 comes factory carrier unlocked?
tia
Click to expand...
Click to collapse
i have h811 TMOBILE phone i got it unlocked. it was unlocked by tmobile.
i unlocked bootloader and carrier unlocked keeps it unlocked no matter what. ive flash this phone so many times.
thats just my experience
OK thanks, Had a bad experience w a Samsung Grand Prime which I do not want to relive.