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[Q] Problems with sim unlock galaxy s2 I9100, chainfire and helroz unsuccesfull

Hi there,
I am having difficulty unlocking my new (UK) galaxy S2 and I figured this is the best place to ask for help. I have searched the threads on this forum and have not been able to find the answers I need. So I'm starting a new thread.
I have rooted the phone successfully and followed the instructions with the chainfire app and when it finished it said it couldn't find the unlock code. The phone came from Virgin as part of a contract, however the contract has been cancelled and I don’t have a virgin sim any more so I haven’t actually tried it with the virgin network. It might be worth mentioning here that when I put a different sim card in it the screen that pops up asking for the unlock code isn't there. I have also completed the procedure with the “galaxy S Unlock” app created by Helroz and that was also unsuccessful. Because the three steps in "galaxy S unlock" were unsuccessful I have restored the efs folder back to its original state. I have not bothered to try the manual method of recovering the unlock code using the hex editor because after reading this forum it seemed unlikely to work and it looked like a bit of a hassle.
I have tried several sim cards in the phone that work with my friend’s phone. And my phone was unable to connect to any networks. Except, when I tried my friends T-Mobile contract sim card I connected to the T-mobile network but my phone wouldn't allow out going or incoming calls however the data network worked fine! Yes the internet was working through the t-mobile network (wifi was turned off)
Isn't that weird!!!! So it kind of looks like the phone might be being blocked by the service provider but I find that very unlikely because up until a couple of days ago the phone was sealed in its box.
I have read through most of the "[HOWTO] GT-I9100 Free SIM Unlock via nv_data.bin by Odia" thread and there is some mention of a new locking technique employed by the various phone network companies. Does my problem sound like it could fall in to that category??
It might also be worth mentioning that I took the phone to a phone shop to see if they could unlock it. They couldn't, but the guy did check the IMEI number on a website called checkmend.com and that site reported: "checkmend has a record of this item having been blocked by a cell phone network" and "checkmend has a record that this item is currently blocked by one or more cell phone networks". Does anyone know anything about this website and weather it is reliable or not. Like I say I find it extremely unlikely that it has been blocked because I have only just got it out of the sealed box.
I am very frustrated as you can all imagine and I would really appreciate some help. Feel free to ask any questions, I am a bit of a noob but I'm not completely incompitent so don't be afraid to get technical.
Thank you for listening,
Yours,
Dardarland.

Bump...
I'm having kind of the same trouble here...
I tried the Chainfire's app and it couldn't find my code, so i went and tried the Helroz App
after following the instructiones in the app and checking with *#7465625# it changed network block to OFF... but when i inserted a diff carrier sim it said: network block... and now my other carrier sim got blocked and won't get recognized by the phone it used to be in... LOL
pls help us both!!

Unlocking
Hi
I did have the same problems with the chainfire app
what i did is use Galaxy_S Unlock (google it as I can not post links at the moment)
Also you will need to install busybox for this to work.
just search for busybox in market and install the first app that comes up
Hope it works

ragsbava said:
Hi
I did have the same problems with the chainfire app
what i did is use Galaxy_S Unlock (google it as I can not post links at the moment)
Also you will need to install busybox for this to work.
just search for busybox in market and install the first app that comes up
Hope it works
Click to expand...
Click to collapse
Thanks fella, worked like a charm

Re: fjaraiza
fjaraiza said:
Bump...
I'm having kind of the same trouble here...
I tried the Chainfire's app and it couldn't find my code, so i went and tried the Helroz App
after following the instructiones in the app and checking with *#7465625# it changed network block to OFF... but when i inserted a diff carrier sim it said: network block... and now my other carrier sim got blocked and won't get recognized by the phone it used to be in... LOL
pls help us both!!
Click to expand...
Click to collapse
Hi fjaraiza,
I saw somewhere in the forum guys that were having similar problems due to the carrier branded rom they had on the phone and due to helroz method which is far more intrusive than odia's. Helroz is flipping bits within nv_data.bin which might lead to corruption. The success of Helroz's method also depends on the phone protection method, some newer versions check the correspondent md5 and ignore the file if it's not the right one.
Your best bet would be to restore an /efs backup if you have one or backup the current state of /efs and try another rom.
Good luck,
Stefan.
P.S.: use thanks when the supplied information is useful

can unlock the messed up ones for a lil fee, pm

Helroz unlocks but then locks again...
Hi all, I've got a weird problem. I used Helroz SIM unlocker on my SGS2 (Im running the latest CM9 build 28/8) and it works. Helroz unlocks the phone but only for about 1-2h?! After about 1-2h the phone has lost NW connection and ask for the SIM unlock code. If I press 'dismiss' then I can run Helroz unlocker again and it will be ok for 1-2h and then loose the unlock again... Has anyone had this problem? Before I used a stock Samsung ROM and then Helroz unlocker worked perfectly, its since I've moved to CM9 ROM that I'm having this issue. Can anyone help?
Thanks in advance

I did have the same problems with the chainfire app
what i did is use Galaxy_S Unlock (google it as I can not post links at the moment)
Also you will need to install busybox for this to work.
just search for busybox in market and install the first app that comes up
Click to expand...
Click to collapse
This worked like magic, but i can i now uninstall the busybox as i dont need it or do i have to keep it on my phone to have it unlocked?

same pronblem
i unlocked my phone using "samsung galaxy unlock" when it was on gingerbread. then i updated it to jelly bean using cm10.2 & after that when i switched it on it says "Enter sim unlock code". i used the same app again but did't get any benefit. also tried few other apps but failed. now when i put the 3 network (the original carrier) it do same with that as well. somebody tell me what to do?

[Q] Can't Unlock LG-p500

Hello everyone,
I come to you with a very strange case, which I have yet to find elsewhere on the web. I hope one of you guys can help me with this...
I'm trying to unlock my LG-p500 phone, I paid for an unlocking code and was ready to follow the instructions to unlock it. I was expecting for a window to pop after typing the first code (2945#*500#), but nothing happened, I tried to enter a different sim card from a different provider and it didn't displayed "phone restricted" as it was supposed to (according to instructions and different forums), but it simply displayed "No service" and "Emergency calls only". I also tried to type 2945#*71001# to get the menu but again... the phone didn't responded to any of these codes (I'm now observing that actually the phone does not respond to many of the secret codes of LG-p500 and Android as well, but it does responds to a number of them, such as *#*#4636#*#*)
Ever since then I've tried SO many things to work it out. I rebooted, unrooted, rooted again, formatted, recovered, installed custom roms, reverted to the original rom, software updated, I almost bricked my phone while trying to get this done but nothing seemed to work. I figured to try to get that menu in a friend's LG-p500 phone, unmodded in any possible way, and surprisingly the window to input the code still did not appeared and it didn't responded to any of the codes above.
It made me wonder of whether the provider had blocked the option of entering the codes, as me and her are with the same phone from the same provider, getting similar results.
I searched for hours for a solution to the problem but with no luck. I would really appreciate getting some help with this, as i'm totally clueless of what to do next. I will be very grateful for any response.
Much thanks!
Shay

Shuye said:
Hello everyone,
I come to you with a very strange case, which I have yet to find elsewhere on the web. I hope one of you guys can help me with this...
I'm trying to unlock my LG-p500 phone, I paid for an unlocking code and was ready to follow the instructions to unlock it. I was expecting for a window to pop after typing the first code (2945#*500#), but nothing happened, I tried to enter a different sim card from a different provider and it didn't displayed "phone restricted" as it was supposed to (according to instructions and different forums), but it simply displayed "No service" and "Emergency calls only". I also tried to type 2945#*71001# to get the menu but again... the phone didn't responded to any of these codes (I'm now observing that actually the phone does not respond to many of the secret codes of LG-p500 and Android as well, but it does responds to a number of them, such as *#*#4636#*#*)
Ever since then I've tried SO many things to work it out. I rebooted, unrooted, rooted again, formatted, recovered, installed custom roms, reverted to the original rom, software updated, I almost bricked my phone while trying to get this done but nothing seemed to work. I figured to try to get that menu in a friend's LG-p500 phone, unmodded in any possible way, and surprisingly the window to input the code still did not appeared and it didn't responded to any of the codes above.
It made me wonder of whether the provider had blocked the option of entering the codes, as me and her are with the same phone from the same provider, getting similar results.
I searched for hours for a solution to the problem but with no luck. I would really appreciate getting some help with this, as i'm totally clueless of what to do next. I will be very grateful for any response.
Much thanks!
Shay
Click to expand...
Click to collapse
The device's hidden menu is only accessible thru stock ROMs and the stock dialer.

shinobisoft said:
The device's hidden menu is only accessible thru stock ROMs and the stock dialer.
Click to expand...
Click to collapse
I figured that, that's why I've also tried to access that menu via an unmodified LG p500 phone, which probably still runs the stock rom but I couldn't access that menu through that phone as well.
I'm starting to conclude that my phone was already unlocked from the provider itself, and perhaps that is the reason why I cannot access that menu again.
Is there a way of assuring that my phone is unlocked? I figured that I can use other sim cards from other Israeli providers, I thought there were two types of locks (that's what they told me in customer service), so if I can use sim cards from other local providers, does it mean that I can also use the phone for sim cards from international providers as well?
Thanks!

[Completed] [Q] S5 dialer codes not working, tip of iceberg

Hi there, I have an( nTelos) Galaxy S5 SM G900R7. I just got this phone with a bad ESN, thinking it would work in the UK with GSM, and just put CF-AutoRoot on it . I have been trying to follow these guides to get the phone to work on GSM bands because I guess the R7 only shows LTE/CDMA and CDMA option for network mode. No apn settings that I can see or anything I was used to with my old S 2X.
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
http://forum.xda-developers.com/galaxy-s5/general/guide-enable-unlock-edit-add-gsm-lte-t2948822
The problem is I CANT DO ANYTHING because the dialer codes are not working? Everytime I type in a code like *#080# and hit the call button it says "Mobile network not available" after a few seconds. I've tried using Phone Info Samsung to access different secret codes but none will work and I get this error message.
This is only my first night of trying/reading forums/failing but I feel out of my depth on this one. I hope your collective expertise can help. My S2x is on its last legs so the situation is semi-dire

Hi there
You already founded the right place for your device so there is the best place for asking that. Try again here:
[SUPPORT THREAD] The Galaxy ~S5~ All in one support thread!**NOOB FRIENDLY**
Good luck

Thanks, I've searched extensively because my problem has changed now. I ended up putting kitkat firmware on my phone instead, which then was able to be read in RNDIS+DB+MODEM mode by my PC and installed the Remote NDIS Driver. I was able to get into QPST and QXDM and mess around with things I shouldn't have messed around with. Now my phone cannot shut down. Whenever I try to power off, it says Power off , the thing spins, and it just stays there until it eventually reboots on its own. I can only shut the phone off by pulling the battery.
I've tried to use the software download in QPST to restore my NV using the backup I made beforehand, but my phone keeps flashing in and out of connection with the COM5 port, going from being there to showing no phone every couple of seconds or so. So the software cannot get a lock on my phone to restore the NV. I can view the .qcn and see all the NV values and everything, but with my phone going in and out of connection, I am not sure how I would be able to edit the values.
I am wondering, is there a way to manually restore a .qcn or the NV values using the phone itself, or some way to solve this connection problem? or perhaps some other software?
Again it is an SM-G900R7 with stock kitkat4.4.2 fimware and CF autoroot installed.

Need help with SIM Network Lock (SM-J700M)

Alright, so, last weekend I got a new Samsung Galaxy J7 with Android 6.0.1. The first thing I did was rooting it. It was all going fine until I accidentally unticked the "OEM Unlock" option on Developer Mode, so when I rebooted it, it had an FRP Lock.
I used a Latin American firmware to be able to boot it again. At boot, there was this "entel" logo, and this seemed to have changed my IMEI because my phone always said Network Unavailable. I didn't check the IMEI prior to rooting it, but I noticed the printed one and the one shown on the phone weren't the same... but this isn't the real problem.
Originally, the phone was unlocked (no specific carrier/operator holding it), and I somehow "fixed" the Network Unavailable thing by erasing the efs folder on root... well, it was a longer process than just deleting it, I backed up the folder and copied some files (some might know what I'm talking about). After that, the IMEI was the same than the printed one, but, my phone is now network SIM locked!
I have to input a code to unlock it. I did some googling and apparently only the carrier can give it to you, so I tried 3 different carrier SIM cards to see if any of them were the carrier's, but none of them worked as accepted,and I don't know what carrier could it be... I'm even worried it may be a Latin American one (from Chile or Argentina maybe since that's where the firmware used was from) and I won't be able to get it.
I know there are websites to get a code, but I don't want to pay so much and risk getting scammed.
I tried to see if "entel" was a carrier to unlock it, but it didn't help.
Also, when I try to choose a network on Mobile Networks settings, the only available one is AT&T (which I don't use/have a SIM of), but when I accessed their website to unlock, it said my IMEI wasn't registered as theirs apparently.
Then, I also tried using Samsung's Smart Switch application on PC with the Device Initialization option, but when I try to use the firmware from that I get a SW REV. Check Fail.
I might be wrong, but I feel that since messing with the system files/root was what changed it, maybe I can fix it the same way with no unlock code or carrier help.
So, does anyone have advice, or know some other way to reset it? Or do I really have to go get it fixed/unlocked somewhere?

frostx said:
Alright, so, last weekend I got a new Samsung Galaxy J7 with Android 6.0.1. The first thing I did was rooting it. It was all going fine until I accidentally unticked the "OEM Unlock" option on Developer Mode, so when I rebooted it, it had an FRP Lock.
I used a Latin American firmware to be able to boot it again. At boot, there was this "entel" logo, and this seemed to have changed my IMEI because my phone always said Network Unavailable. I didn't check the IMEI prior to rooting it, but I noticed the printed one and the one shown on the phone weren't the same... but this isn't the real problem.
Originally, the phone was unlocked (no specific carrier/operator holding it), and I somehow "fixed" the Network Unavailable thing by erasing the efs folder on root... well, it was a longer process than just deleting it, I backed up the folder and copied some files (some might know what I'm talking about). After that, the IMEI was the same than the printed one, but, my phone is now network SIM locked!
I have to input a code to unlock it. I did some googling and apparently only the carrier can give it to you, so I tried 3 different carrier SIM cards to see if any of them were the carrier's, but none of them worked as accepted,and I don't know what carrier could it be... I'm even worried it may be a Latin American one (from Chile or Argentina maybe since that's where the firmware used was from) and I won't be able to get it.
I know there are websites to get a code, but I don't want to pay so much and risk getting scammed.
I tried to see if "entel" was a carrier to unlock it, but it didn't help.
Also, when I try to choose a network on Mobile Networks settings, the only available one is AT&T (which I don't use/have a SIM of), but when I accessed their website to unlock, it said my IMEI wasn't registered as theirs apparently.
Then, I also tried using Samsung's Smart Switch application on PC with the Device Initialization option, but when I try to use the firmware from that I get a SW REV. Check Fail.
I might be wrong, but I feel that since messing with the system files/root was what changed it, maybe I can fix it the same way with no unlock code or carrier help.
So, does anyone have advice, or know some other way to reset it? Or do I really have to go get it fixed/unlocked somewhere?
Click to expand...
Click to collapse
Did you ever get anywhere with this? I am trying to switch carriers from t mobile to boost on the Sm-j700f and I need to unlock it

Need help with SIM Network Lock

(I accidentally posted this in an unrelated discussion so sorry if it appears twice!)
Alright, so, last weekend I got a new Samsung Galaxy J7 (SM-J700M) with Android 6.0.1. The first thing I did was rooting it. It was all going fine until I accidentally unticked the "OEM Unlock" option on Developer Mode, so when I rebooted it, it had an FRP Lock.
I used a Latin American firmware to be able to boot it again. At boot, there was this "entel" logo, and this seemed to have changed my IMEI because my phone always said Network Unavailable. I didn't check the IMEI prior to rooting it, but I noticed the printed one and the one shown on the phone weren't the same... but this isn't the real problem.
Originally, the phone was unlocked (no specific carrier/operator holding it), and I somehow "fixed" the Network Unavailable thing by erasing the efs folder on root... well, it was a longer process than just deleting it, I backed up the folder and copied some files (some might know what I'm talking about). After that, the IMEI was the same than the printed one, but, my phone is now network SIM locked!
I have to input a code to unlock it. I did some googling and apparently only the carrier can give it to you, so I tried 3 different carrier SIM cards to see if any of them were the carrier's, but none of them worked as accepted,and I don't know what carrier could it be... I'm even worried it may be a Latin American one (from Chile or Argentina maybe since that's where the firmware used was from) and I won't be able to get it.
I know there are websites to get a code, but I don't want to pay so much and risk getting scammed.
I tried to see if "entel" was a carrier to unlock it, but it didn't help.
Also, when I try to choose a network on Mobile Networks settings, the only available one is AT&T (which I don't use/have a SIM of), but when I accessed their website to unlock, it said my IMEI wasn't registered as theirs apparently.
Then, I also tried using Samsung's Smart Switch application on PC with the Device Initialization option, but when I try to use the firmware from that I get a SW REV. Check Fail.
I might be wrong, but I feel that since messing with the system files/root was what changed it, maybe I can fix it the same way with no unlock code or carrier help.
So, does anyone have advice, or know some other way to reset it? Or do I really have to go get it fixed/unlocked somewhere?