Develop Bugs

[Q] Probme with sim unlocking HTC S620/Dash

Hi there.
I have a problem with sim unlocking my phone. T-Mobile already gave me my unlock code.
I entered it once, and it told me wrong code. I don't know if I typed the wrong code or if they sent me one. I swear i only did it once.
Anyway, my problem right now is that when I insert a new sim card, it does not prompt me for an unlock code.
My sim card is unaccessible plus I don't have any signal.
I already have done a hard reset twice, and still not prompt.
Can anyone help me how to make the phone prompt for the sim unlock code?

did u buy it off someone?

Nope. My service provider, T-Mobile gave it to me.
I also have flashed to the phone to the latest ROM here. Still no go...

yoshiboy_21 said:
Nope. My service provider, T-Mobile gave it to me.
I also have flashed to the phone to the latest ROM here. Still no go...
Click to expand...
Click to collapse
You need to flash to a 6.0 or 6.1 rom so you can get the sim unlock message. If you flashed a 6.5 rom this will not happen.
This is something that is on the sticky. On that note, thread closed.

[Q] Wildfire o2 sim problems

I have a wildfire s that has been properly unlocked, however it will not accept my o2 sim- i dont mean that I can't get the mms or internet but it wont accept the actual sim - when it ask me to choose a network and i pick o2, it simply says that the sim does not support connection the the carrier - i have a brand new sim 3g ready.....................someone, please help...

imnw said:
I have a wildfire s that has been properly unlocked, however it will not accept my o2 sim- i dont mean that I can't get the mms or internet but it wont accept the actual sim - when it ask me to choose a network and i pick o2, it simply says that the sim does not support connection the the carrier - i have a brand new sim 3g ready.....................someone, please help...
Click to expand...
Click to collapse
what does 'properly unlocked' mean ?

I say you might have unlocked the bootloader,bit the phone still has SIM lock.
Sent from my HTC Wildfire S

hmm, so you saying if i go back to the shop and get them to unlock properly, it might let me use the o2 sim???
is there anything i can do....having only a modest knowledge of these issues?

and in reply to properly...sorry i wasnt specific - i meant that when you put an o2 sim in and turn it on...it doesnt ask for a pin or code to unlock the phone??

Well did you buy it in a O2 shop? If yes,then there appears to be a problem with you handset. If you DIDN'T buy it in a O2 shop(which means any other,T-Mobile,3,etc.) Then you're out of luck because it it probably SIM locked to that carrier.
You should bring back the handset back to the shop and ask them to remove the SIM lock.

ok, so here we go...
Went to the shop and they say the phone is unlocked. When i put an o2 sim card in, it does not require a pin when the phone switches on.
It works with tmobile sim, orange, virgin just not o2....
so it is unlocked just wont take o2.....
any ideas why?
its originally a tmobile wildfire - spoken to tmobile and they say they have completly unlocked.....

imnw said:
ok, so here we go...
Went to the shop and they say the phone is unlocked. When i put an o2 sim card in, it does not require a pin when the phone switches on.
It works with tmobile sim, orange, virgin just not o2....
so it is unlocked just wont take o2.....
any ideas why?
its originally a tmobile wildfire - spoken to tmobile and they say they have completly unlocked.....
Click to expand...
Click to collapse
do you have any other o2 sim to test it ?
you should also go and change your sim, might be rly the SIM problem ...here changing sim costs 10 bucks, i hope its free in your case.

im afraid im a step ahead - all o2 sims dont work - i had a brand new 3g sim sent out by o2 and have tried a pay as you go sim on o2 - still wont work with any o2 sim....
any ideas?

imnw said:
im afraid im a step ahead - all o2 sims dont work - i had a brand new 3g sim sent out by o2 and have tried a pay as you go sim on o2 - still wont work with any o2 sim....
any ideas?
Click to expand...
Click to collapse
a ok, i didnt read that one... lets try to keep this on one thread. why dont you try flashing stock rom again... i mean its worth a shot... i guess you dont use any custom roms atm ? or even try flashin any custom rom, just to try it ... if it doesn't work then, well, we will see it's a very strange problem.
did you try connecting with 2g, and not 3g...
or maybe changing setting in *#*#3646#*#* then phone information, then set preffered network type... and try changing those also ... First try this, and if it doesnt help then try what i wrote above.

ok,well - had a read of your suggestion and only a slight problem with it...i am a real beginner when it comes to this so apologies but rom flash???
Also looked at the *#*# suggestion...unsure how to do that - did try typing that into the keypad on the phone part but it didn't do anything..
apologies im not up to speed..any way to simplify for me?

oh, and also someone has suggested going into the bootloader so i took out the sim and battery, put it all back in and held down volume and power. at the bootloader menu, i selected simlock. when i pressed it the following was displayed..
fat 32 init ok
open mccmnc file fail
open cid file fail
process done, reboot?
does this help explain anything??

imnw said:
oh, and also someone has suggested going into the bootloader so i took out the sim and battery, put it all back in and held down volume and power. at the bootloader menu, i selected simlock. when i pressed it the following was displayed..
fat 32 init ok
open mccmnc file fail
open cid file fail
process done, reboot?
does this help explain anything??
Click to expand...
Click to collapse
i guess you didnt unlock via xtc clip... you should write the code that i told u on dialer pad, it should immediately open a meny, i will make photos when i come home as a more detailed guide k ?

ok, just to save you some time if you dont need to spend it - the phone was unlocked at a local shop - no idea how they did it - although im guessing badly...
i typed that code in - when i enter the final * the code just disappears and it does nothing. I did enter the code without the last * and it said mmi running but then said incorrect mmi...

imnw said:
ok, just to save you some time if you dont need to spend it - the phone was unlocked at a local shop - no idea how they did it - although im guessing badly...
i typed that code in - when i enter the final * the code just disappears and it does nothing. I did enter the code without the last * and it said mmi running but then said incorrect mmi...
Click to expand...
Click to collapse
oomg man i just saw, its my bad ITS NOT 3646 its 4636 .... i wrote it wrong :////

thanks - tried that and got into the phone menu. The current preferred choice is WCDMA - there are other options but nothing to suggest that an o2 sim should be blocked....

imnw said:
thanks - tried that and got into the phone menu. The current preferred choice is WCDMA - there are other options but nothing to suggest that an o2 sim should be blocked....
Click to expand...
Click to collapse
well ntry changing to gsm preffered and so on, just try it ...

ok dok - given it a go and no luck - im wondering if a factory reset of the phone may restore the original settings and I can get it unlocked the correct way this time??? what do you think??

imnw said:
ok dok - given it a go and no luck - im wondering if a factory reset of the phone may restore the original settings and I can get it unlocked the correct way this time??? what do you think??
Click to expand...
Click to collapse
well, you should give it a go, since i dont have an idea what could possibly be wrong

ok, well have done several things.
i) master factory reset - made no difference - o2 sim still wont work
ii) tried to connect the phone to the pc but even with htc sync installed the phone wont connect to the pc
so it looks like we're stuffed here???

[Q] foregin sim card not prompting unlock galaxy s2 t989

I'm trying to unlock my phone, I bought used on ebay, I found found a thread here that shows you how to unlock, but can't even do the first step. when I install a different sim card, I don't get the message Unlock, the phone reads the sim as a non support sim.
the sim I'm putting in the phone doesnt have service on it, Is this the reason the unlock message doesn't come up?
Please Help

Maybe your phone is already unlocked
Sent from my SAMSUNG-SGH-T989

Not sure
cricketAC said:
Maybe your phone is already unlocked
Sent from my SAMSUNG-SGH-T989
Click to expand...
Click to collapse
I put a metro pcs sim that has service on it, but when I try to make a call, it say, not register to network, and or mobile network disconnected? Aso also tried to put the apn setting, but when I try to save the apn setting, they disappear??
Anyone have any idea?
Thanks for the reply

you can use free unlock from general http://forum.xda-developers.com/showthread.php?t=2024514
but of course you have to do it from uvkl1. but--you can do a nandroid, and after you unlock it, restore your backup! it will stay unlocked

juna1103 said:
I put a metro pcs sim that has service on it, but when I try to make a call, it say, not register to network, and or mobile network disconnected? Aso also tried to put the apn setting, but when I try to save the apn setting, they disappear??
Anyone have any idea?
Thanks for the reply
Click to expand...
Click to collapse
Seems your phone's ROM/Radio mismatched or not for MetroPCS. This exactly happened to my phone also, until I flashed a new radio for my rom(I am using TMobile, flashed new TMobile ROM but not new Radio. Then it had the problems as you have now).

New sim fixed
cr2069 said:
Seems your phone's ROM/Radio mismatched or not for MetroPCS. This exactly happened to my phone also, until I flashed a new radio for my rom(I am using TMobile, flashed new TMobile ROM but not new Radio. Then it had the problems as you have now).
Click to expand...
Click to collapse
'' Thanks for the reply ''
The sim card I was putting in the phone was already register to a different phone.. I had to put a new sim, not active yet, then register the new sim to my imei and it worked fine.. I bought the phone used from ebay and it was already unlocked..

No SIM card

Hello I have an unlocked SGH-T989D phone but the problem is it will only detect sim cards from Koodo even though it is unlocked, I've tried flashing many different roms and different radios but nothing is working. Currently on stock 4.0.4 /T 989UVLE1, yes the phone is unlocked I checked multiple times. Anyone know how to fix this?

ZYXWABCD said:
Hello I have an unlocked SGH-T989D phone but the problem is it will only detect sim cards from Koodo even though it is unlocked, I've tried flashing many different roms and different radios but nothing is working. Currently on stock 4.0.4 /T 989UVLE1, yes the phone is unlocked I checked multiple times. Anyone know how to fix this?
Click to expand...
Click to collapse
How do you check if a phone is unlocked if any SIM you try from another company is not read by the phone?
I think you need to try the unlocking procedure again, I don't think it was properly unlocked

ShaDisNX255 said:
How do you check if a phone is unlocked if any SIM you try from another company is not read by the phone?
I think you need to try the unlocking procedure again, I don't think it was properly unlocked
Click to expand...
Click to collapse
Hi when I go to the dialer and type *#7465625# it says [NETWORK LOCK] OFF

ZYXWABCD said:
Hi when I go to the dialer and type *#7465625# it says [NETWORK LOCK] OFF
Click to expand...
Click to collapse
What method did you use to unlock it?
I did it with this (http://forum.xda-developers.com/showthread.php?t=2024514) and not a single time was I asked to check with the code that you have showed me
This IS for the T989 though, not sure if you can use it for the T989D or if it's different in a way.
Sorry that I can't help, I hope you get the answers you are looking for

ShaDisNX255 said:
What method did you use to unlock it?
I did it with this (http://forum.xda-developers.com/showthread.php?t=2024514) and not a single time was I asked to check with the code that you have showed me
This IS for the T989 though, not sure if you can use it for the T989D or if it's different in a way.
Sorry that I can't help, I hope you get the answers you are looking for
Click to expand...
Click to collapse
My brother used that method a long time ago and he was able to use different carriers, but now nothing works but Koodo, and I never get asked for an unlock code, just says 'No SIM card'

ZYXWABCD said:
My brother used that method a long time ago and he was able to use different carriers, but now nothing works but Koodo, and I never get asked for an unlock code, just says 'No SIM card'
Click to expand...
Click to collapse
Yeah, this phone will not ask you for an unlock code, if you follow the procedure correctly it will read any other SIM card on it's own
Try unlocking again with what you have, the stock 4.0.4 and UVLE1 combination, it should be the right one. Do the procedure again until it reads the SIM card you want.
Another possible problem could be that your SIM is damaged or not well placed. It happens to me when I try to fit a Micro SIM on it, if it is not well placed it will not detect it. Try using other SIMs or try it on other phones to see if your SIM is the problem

ShaDisNX255 said:
Yeah, this phone will not ask you for an unlock code, if you follow the procedure correctly it will read any other SIM card on it's own
Try unlocking again with what you have, the stock 4.0.4 and UVLE1 combination, it should be the right one. Do the procedure again until it reads the SIM card you want.
Another possible problem could be that your SIM is damaged or not well placed. It happens to me when I try to fit a Micro SIM on it, if it is not well placed it will not detect it. Try using other SIMs or try it on other phones to see if your SIM is the problem
Click to expand...
Click to collapse
I tried unlocking it again, doesn't work, tried different sims, and still doesn't work, but those other sims work on different devices. Only the Koodo one works on mine, which was what it was locked to before unlocking.

ZYXWABCD said:
I tried unlocking it again, doesn't work, tried different sims, and still doesn't work, but those other sims work on different devices. Only the Koodo one works on mine, which was what it was locked to before unlocking.
Click to expand...
Click to collapse
Well in that case I'm all out of ideas.
One final question, when you insert a SIM on your T989D that is NOT Koodo, do you get an "Invalid SIM", "No SIM" or just an empty signal bar?

ShaDisNX255 said:
Well in that case I'm all out of ideas.
One final question, when you insert a SIM on your T989D that is NOT Koodo, do you get an "Invalid SIM", "No SIM" or just an empty signal bar?
Click to expand...
Click to collapse
It says "No SIM card.|Emergency calls only"

ZYXWABCD said:
It says "No SIM card.|Emergency calls only"
Click to expand...
Click to collapse
My conclusion is that it's having a hard time reading the SIM card. When you put another companies SIM card in to a LOCKED phone, it will show as invalid SIM (sometimes it even shows signal but is unusable). Since it says "No SIM card", I believe it's more of a hardware problem than a software one.
All I can think of is try moving the SIM card around, turn on. If nothing changes turn it off and move a little again, the turn on and repeat until it reads it.
Apart from that, I have no clue what could be wrong with the phone.
Turn on your phone without any SIM. If you get the same message (No SIM card.|Emergency calls only|) then it is most definitely your phone not reading your SIM correctly. If you get Koodo signal WITHOUT any SIM inserted (which I doubt but it CAN happen) then that means you have a faulty SIM Card Reader on your phone.

ShaDisNX255 said:
My conclusion is that it's having a hard time reading the SIM card. When you put another companies SIM card in to a LOCKED phone, it will show as invalid SIM (sometimes it even shows signal but is unusable). Since it says "No SIM card", I believe it's more of a hardware problem than a software one.
All I can think of is try moving the SIM card around, turn on. If nothing changes turn it off and move a little again, the turn on and repeat until it reads it.
Apart from that, I have no clue what could be wrong with the phone.
Turn on your phone without any SIM. If you get the same message (No SIM card.|Emergency calls only|) then it is most definitely your phone not reading your SIM correctly. If you get Koodo signal WITHOUT any SIM inserted (which I doubt but it CAN happen) then that means you have a faulty SIM Card Reader on your phone.
Click to expand...
Click to collapse
It works on Koodo but only if the sim is inserted, also I tried moving the sim around and it still isn't reading. I think this is a software issue.

ZYXWABCD said:
It works on Koodo but only if the sim is inserted, also I tried moving the sim around and it still isn't reading. I think this is a software issue.
Click to expand...
Click to collapse
bump

Sorry man, I'm all out of ideas. I mean I've experienced the problem with the "No Service" thing, but I basically fix it by switching to 2G since I know there are some areas that I can't get 3G coverage. As for your problem, it's basically not reading your SIM entirely (by either software or hardware issues) and I wouldn't know how to get around that.
Best of luck to you

D855 Sim lock weird behavior

Hi all. I have G3 bought from my carrier it is on stock lolipop recieved over the OTA. Only thing I was messing with it is TWRP and root.. As I thought it is sim locked I put another carrier sim in it. It boots without asking me for sim unlock code but can not connect to network and not allow me to enter network settings to o it manually ( it is greyed out ). The other sim works fine in another unlocked android phone.
Someone have an idea what is going on??

I have no idea. Sorry man

nicksylve said:
I have no idea. Sorry man
Click to expand...
Click to collapse
I had my share of rooting and installing custom recoveries and ROM-s for a long time, so my current thought is, is it possible that it is just software locked somehow?
I never saw this before..

Solved the problem, it was built in the Rom provided by my carrier "Vip.rs" grab my hand on new Sim card of different carrier on Fulmics 3.1 and it is carrier free. Just to tell you, if more people in Serbia have the same problem.