Hey guys,
My S3 is still stuck on the German leaked version of 4.3 (the version that can't wake from sleep mode) and it is really pissing me off. I can't downgrade and I need to unlock to change to the fixed BTU version of 4.3. Otherwise I will have no network.
I have tried Galaxsim and it says my phone has a new lock method that cannot be unlocked, other ways with MMI codes I can't enter.
Does anyone have an ide on how I can unlock or maybe easier changing the laggy 4.3 to a fixed version without losing my network?
I am not sure but you you flash a new rom you wont unlock youre phone but you still be able to reach your network and loose the lag
ShltHappens said:
I am not sure but you you flash a new rom you wont unlock youre phone but you still be able to reach your network and loose the lag
Click to expand...
Click to collapse
I was told over at Sammobile if I flashed another rom my network would be gone without unlocking it before flashing
Flashing another rom will only remove any network branding or apps your phone might have come with, it will never remove the sim lock.
Flash the latest 4.3 to improve wake lag, then flash the right modem for your country. But you'll need to buy an unlocking code to use another network.
Sent from my GT-I9300 using Tapatalk
I was told over at sammobile if I flash another rom without unlocking then my network will be lost. Will this be the case?
Related
Guys .. I have an LG Optimus T P509
I did install the stable version of CyanogenMod 7 from the topic
http://forum.xda-developers.com/showthread.php?t=946354
However, I bought the unlock pin number but whenever I put a different sim card other than Tmobile for example ATT, the phone wouldn't ask for unlock code and ends with no signal at all. Even when I search for networks can't find anything.
I was thinking may be I need to flash it back to the original stock rom. And if so where can I find it?
Any help
Thanks
I haven't unlocked my phone yet, but it sounds like you need to apply the sim unlock pin. The phone is not going to automatically prompt you to do so, you have to do it manually. just open up the phone app and dial
2945#*500#
replacing 500 with whatever the model number of your phone is. For me, it's 509. Also, I may be wrong but I'm pretty sure you need to flash back to the stock firmware in order to do this.
Yeah you're right ... I was able to do the unlock once I flashed the stock firmware, I got my unlock code from eBay, pretty cheap cost me only $5 and then after unlocking it, I flashed the CM7 and it's working absolutely with no probs.
Thanks for passing by
So how do those unlock codes work? Is there one that works for all phones, or are they unique from phone to phone?
I believe unlock codes are unique to each phone's serial number. Some phones, like my HTC Desire Z (a.k.a. T-mobile G2) can be unlocked by other means, a software script or the like. I don't know if this can be done for the Optimus T.
DevilMosin said:
Yeah you're right ... I was able to do the unlock once I flashed the stock firmware, I got my unlock code from eBay, pretty cheap cost me only $5 and then after unlocking it, I flashed the CM7 and it's working absolutely with no probs.
Thanks for passing by
Click to expand...
Click to collapse
I have the same issue, how did you flash back to stock firmware? Where did you get it from and what are the steps..
stock firmware
this goes without saying but you *really* should have made a backup of your stock ROM before flashing anything. That is where i got mine. However, if you need the stock firmware, you should be able to revert to stock using KDZ. I have not had great success with KDZ though (bricked two phones, successfully restored the WRONG firmware to the third phone, but was able to flash the original backup I made over the V10E firmware)
Just a thought, but I probably need to sim unlock my phone again since I had to flash KDZ
I have an I9100 (international version) that I got from O2 in the UK. It was previously locked to O2 until I used the "Galaxy_S Unlock" app by Helroz. This seemed to unlock fine and could use it on Canadian networks with no problem.
I have flashed loads of other custom roms since with no problem, however I tried flashing the official sammy JB firmware (Nordic version, XWLSD) via Odin and found that my phone now asks for the carrier unlock code again. It seems to have re-locked itself to a carrier.
Any ideas? Is this a CSC issue? I thought firmware updates didn't affect the /efs files.
liabilityman said:
I have an I9100 (international version) that I got from O2 in the UK. It was previously locked to O2 until I used the "Galaxy_S Unlock" app by Helroz. This seemed to unlock fine and could use it on Canadian networks with no problem.
I have flashed loads of other custom roms since with no problem, however I tried flashing the official sammy JB firmware (Nordic version, XWLSD) via Odin and found that my phone now asks for the carrier unlock code again. It seems to have re-locked itself to a carrier.
Any ideas? Is this a CSC issue? I thought firmware updates didn't affect the /efs files.
Click to expand...
Click to collapse
Always back up EFS folder, ALWAYS.
Search was down earlier today but you still have google.
You could type something like "official jb carrier lock" and you get these results.
You could open a new tab for this and what do you know? problem solved.
gastonw said:
Always back up EFS folder, ALWAYS.
Search was down earlier today but you still have google.
You could type something like "official jb carrier lock" and you get these results.
You could open a new tab for this and what do you know? problem solved.
Click to expand...
Click to collapse
Yeah I did search, though nothing really relevant would come up as most results talked about the "leaked" firmware rather than the official releases, or would talk about "SIM" locks rather than a "carrier/network" locks.
I have backed up my EFS using ktool and have now used the GalaxSim Unlock apk linked above to remove the carrier lock. I had previously tried Helroz's app on the official JB firmware but it ended up corrupting my efs somehow and i lost my IMEI, managed to restore it though.
I was just suprised that flashing a new firmware would affect the carrier lock of a phone at all, it was my understanding that flashing firmware doesn't affect the efs directory. Anyway, problem solved and my phone is now usable abroad. Thanks!
Glad you solved it.
Now, read spocky's galaxysim thread, you'll see why your device relocked.
Sent from the little guy
Hello,
I recently bought a GS3 and since it's "carrier blocked" as its not recieving any further updates since my carrier is not willing to pay for new firmwares, I was wondering if, when I flash a new official firmware with ODIN, such as in my case DBT (Germany's one)...do I have to do anything special after or before flashing, or is it just safe to go and fash the firmware?
Thanks
No, it will just become an unbranded phone if you flash the latest stock rom for your country, or branded with another carrier if you choose their firmware.
What it won't do is unlock the old carrier SIM lock, so you'll still have to use their network.
Follow the sticky guides on using odin, backup your efs and you'll be fine.
Edit: you might need to factory reset before you flash, depending on how old your current firmware is.
Carrier blocked ??? Do you mean the phone and its IMEI has been blocked by the carrier ??
Hi all
I have a galaxy s2 i777 ATT - I can't find its own place on this forum so please forgive me if this in the wrong section
My S2 was unrooted and then I loaded omni kitkatt on it which locked my sim . big noob mistake I feel really dumb believe me.
Now I had unrooted it in the with odin and loaded Siyah ics to finally root it because the sim got locked. I live outside of the USA and nowhere near an ATT network. It has the CWM recovery on it
So all was well until someone ( my nephew ) decided to load omni again and then he loaded Carbon on it
The strange thing that is happening right now is that I do see Superuser in the settings but my sim is still locked I tried to use galaxys2 unlock but it doesnt do anything.
No biggie right but now it turns out my USB port is not working.
So here are my questions :
- How do i get my phone back to stock without a pc and root it (I live outside of the usa thats why I believe my sim gets locked ) so we can use the phone again to call
or
- Can I use mobile odin to load the stock version of android back on it and then unroot it again so I can unlock my phone ?
- Can I try to use frama root to check if my phone is really rooted and if so can it help root my phone ?
For now I'd just like to get it back to stock and root it ( so I can unlock my sim)
I need your help .
Thanks
Maddie
The good news is that you're in the right place, so welcome!
Next, I'm guessing you're still on Carbon? If so please look in System Settings >About Phone and please tell us the rom, kernel and modem version currently installed on your device. It's always good for us to know your full setup.
Regarding the sim issue I have virtually no experience with it, but I do know you can simply call AT&T and they should supply the unlock code (if you have a working phone, of course). You may have to supply your serial and IMEI #, both of which can be found on the battery, so probably best to have that handy if you call them.
You don't have to be on bone stock to unlock your phone, you just need the unlock code... and hang onto it for as long as you own your i777!
Have you tried the GalaxSim Unlock application? Here is a link to download the free version. You may find that you can unlock your rooted phone without flashing back to stock. I have limited experience with this application. I recently sold an AT&T SGH-I897 Captivate which I unlocked successfully with this app while it was rooted on stock Gingerbread. The purchaser wanted KitKat so I loaded CyanogenMod 11 onto it, and checked that the unlock was still present.
To answer your other questions:
I'm not sure why you are asking to "unroot" the phone after returning to stock. As far as I know, you need to be rooted to unlock the phone unless you have the unlock code from AT&T.
You can flash stock firmware with mobile odin. The stock package does not contain root, so your phone will automatically be "unrooted." If you go this route, I would suggest you use the I777UCMD8 stock tar from the Download Repository.
From stock UCMD8, you can successfully root the phone with Framaroot using the Aragorn exploit.
SteveMurphy said:
The good news is that you're in the right place, so welcome!
Next, I'm guessing you're still on Carbon? If so please look in System Settings >About Phone and please tell us the rom, kernel and modem version currently installed on your device. It's always good for us to know your full setup.
Regarding the sim issue I have virtually no experience with it, but I do know you can simply call AT&T and they should supply the unlock code (if you have a working phone, of course). You may have to supply your serial and IMEI #, both of which can be found on the battery, so probably best to have that handy if you call them.
You don't have to be on bone stock to unlock your phone, you just need the unlock code... and hang onto it for as long as you own your i777!
Click to expand...
Click to collapse
Hi thanks for helping out this is what I got:
CARBON-JB-NIGHTLY-20130929-0603-i777.zip
Kernel version
[email protected]#1sunsep2906:36:49 edt 2013
ROM: CWM based recovery v6.0.3.8
I cant find modem version
I'm in south America and I had bought the phone from the usa unlocked.
When Omni was loaded on the phone it locked my sim and I never had received an unlock code.
So when I went back to stock my sim still stayed locked so I rooted it again with Siyah ICS via odin so I could use galaxy unlock to get my sim working again.
How would I go about getting that unlock code for my sim from Att ?
Do you think I could email att ? I did find my serial number and imei #
The reason I wanted to go back to stock and than unroot it with the siyah ics kernel is because that seems to be stable for my phone.
Yes I have tried using galaxy unlock but it doesn't work it doesn't read the Imei nr and the sim stays locked
Honestly it looks like my phone is half rooted now
BTW the the sim being locked is more like a carrier locked I can't use the sim with my local telecommunnications company.
Thanks again.
Hi everyone. I'm having problems with my new sim card.
I am in the UK and i recently switched from o2 to iD mobile however the new sim card is not working. It says it's connected to iD network but emergency calls only. If i put the old sim card back in it works fine again. I also tried a friends iD sim card and it has the same problem. I thought it was perhaps locked to o2 only but it doesnt ask me to enter a network or an unlock code? Very confused.
Phone is rooted.
Device Model: GT-i9300
Android Version: 7.1.1
CyanogenMod version: 14.1-20161209-NIGHTLY-i9300
Would really appreciate any help
The phone won't prompt you for a network code unless you're on a stock rom. Custom roms can't interface with the simlock.
If your phone has ever seen 4.3 or later you'll need the code from the carrier at cost unless you've completed a contract and then they must unlock it for free.
I have a 4.3 btu rom if you have a btu phone: https://drive.google.com/file/d/0B4vTiHTBB629OVlvY0pkcXN4ak0/view?usp=drivesdk
If it has the O2 logo on the boot screen then DO NOT USE THAT ROM
Beamed in by telepathy.
shivadow said:
The phone won't prompt you for a network code unless you're on a stock rom. Custom roms can't interface with the simlock.
If your phone has ever seen 4.3 or later you'll need the code from the carrier at cost unless you've completed a contract and then they must unlock it for free.
I have a 4.3 btu rom if you have a btu phone:
If it has the O2 logo on the boot screen then DO NOT USE THAT ROM
Beamed in by telepathy.
Click to expand...
Click to collapse
Right, so you think get the phone back to a normal rom then use an unlock code?
It was/is a pay as you go phone. It's about 2-3 years old i got it off the wife when she got a new one.
When it boots now all i get is the custom cyanogen logo i believe, definitely not showing o2.
btw what exactly is a btu phone?
thanks for the advice
Download the latest stock rom from sammobile.com and flash it via Odin.
jsculldog said:
Right, so you think get the phone back to a normal rom then use an unlock code?
It was/is a pay as you go phone. It's about 2-3 years old i got it off the wife when she got a new one.
When it boots now all i get is the custom cyanogen logo i believe, definitely not showing o2.
btw what exactly is a btu phone?
thanks for the advice
Click to expand...
Click to collapse
A btu phone is the worldwide unlocked edition. Carphone warehouse sells such phones as well as carrier editions, like o2, ee, 3 etc which is why i asked about the carrier splash screen.
Flash stock rom, insert new sim, enter network unlock code, flash whatever you want.
Beamed in by telepathy.
shivadow said:
A btu phone is the worldwide unlocked edition. Carphone warehouse sells such phones as well as carrier editions, like o2, ee, 3 etc which is why i asked about the carrier splash screen.
Flash stock rom, insert new sim, enter network unlock code, flash whatever you want.
Beamed in by telepathy.
Click to expand...
Click to collapse
Thanks. Still in the process of attempting this(I'm slow)
So now i'm downloading the o2 firmware.
Then flash it over via Odin
Unlock phone via code
Then i'm free to use my new sim card and reinstall custom firmware like cyanogenmod without it un-unlocking itself?
thanks again for all the help btw!
By "flash whatever you want" if you want to reinstall a custom rom you'll need root. To get root you can flash chainfire autoroot (recommended) via odin or use one of those apps that claim to do it for you.
The main point is you have to be on a stock rom to network unlock the phone. There is no way around that.
Beamed in by telepathy.
shivadow said:
By "flash whatever you want" if you want to reinstall a custom rom you'll need root. To get root you can flash chainfire autoroot (recommended) via odin or use one of those apps that claim to do it for you.
The main point is you have to be on a stock rom to network unlock the phone. There is no way around that.
Beamed in by telepathy.
Click to expand...
Click to collapse
Yeah i should be able to get it rooted ok not too worried about that.
I've now flashed the stock rom onto the phone. So next step is unlocking.
I've seen there are apps that can unlock it for you, such as galaxsim. If i unlocked through this method and then flashed a new firmware do you think the unlock would remain?
thanks for all the help/advice!
Ok going a bit crazy with this now
I downloaded this firmware
http://www.sammobile.com/firmwares/database/GT-I9300/O2U/
I downloaded the one at the top of the page, flashed it via odin and its working fine etc. However it still isnt asking me for an unlock code and gives me the same emergency calls only.
So confused, not sure what else to try.
Put a sim card in from another network for the code prompt but you will still need a code. The only way to unlock it is to pay the original carrier who first issued the phone, the store it was bought from, or a phone repair shop.
When you have the code from the carrier, put the sim from another network in, enter the code when prompted and it'll immediately unlock for ALL carriers.
If you take it to a store they do the unlock process for you.
Galaxsim is old and defunct, for use on devices never updated.
The nvram edit doesn't work after 4.2.
Beamed in by telepathy.
shivadow said:
Put a sim card in from another network for the code prompt but you will still need a code. The only way to unlock it is to pay the original carrier who first issued the phone, the store it was bought from, or a phone repair shop.
When you have the code from the carrier, put the sim from another network in, enter the code when prompted and it'll immediately unlock for ALL carriers.
If you take it to a store they do the unlock process for you.
Galaxsim is old and defunct, for use on devices never updated.
The nvram edit doesn't work after 4.2.
Beamed in by telepathy.
Click to expand...
Click to collapse
Yeah that's the thing i still have my old o2 sim and if i put that in it works fine. Then when i try to put my new iD sim in it just sticks to emergency calls.
I think we're im at now is i have an o2 locked phone but because of previous firmware changes it wont prompt me for an unlock code. Also i tested both sims in another phone and they work fine.
Might take it to a shop today see if they can fix it.
O2 wouldn't have relocked the phone. The only thing I can think of is a software issue.
Did you have the correct apn dialled in?
Beamed in by telepathy.