I was recently playing with some of the Samsung Galaxy Secret Codes and appear to have entered one that locked my SIM (see attached screenshot). The phone still works, but I have to enter the unlock pin every time I reboot the phone. I've searched all over and tried many different things (including the *#0011# menu) and nothing seems to work. Recently did a factory reset and took it into the Sprint store to reflash the software and still getting the message. Is there a code I can enter to get to an unlock screen? Please advise.
you have just set PIN on your sim , you can always disable it, i believe the option is in settings - security - sim lock. btw it is always wise to use a PIN unless you forget it!! plus this related to your service provider and flashing and resetting the cell won't work , if the sim is locked by a PIN it will always ask for it even when you put it in a different cell.
Yeah, its a security implemented on the SIM card not on your phone.
dovakinn said:
you have just set PIN on your sim , you can always disable it, i believe the option is in settings - security - sim lock. btw it is always wise to use a PIN unless you forget it!! plus this related to your service provider and flashing and resetting the cell won't work , if the sim is locked by a PIN it will always ask for it even when you put it in a different cell.
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I have not found an option anywhere in the phone to disable the SIM lock. Please advise.
Related
I unlocked my G2 before leaving on trip to Europe and after the unlock process has finished phone now can't connect to gsm network at all. I used 3 different sim cards including t-mobile original sim card nothing helps. Also did hard reset and reflashed with OOB ROM from dev thread, nothing helps. Anybody has the same issue? Any other suggestions?
hmfic said:
I unlocked my G2 before leaving on trip to Europe and after the unlock process has finished phone now can't connect to gsm network at all. I used 3 different sim cards including t-mobile original sim card nothing helps. Also did hard reset and reflashed with OOB ROM from dev thread, nothing helps. Anybody has the same issue? Any other suggestions?
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Click to collapse
Dear friend, my issue exactly. No connection after unlocking. I have tried virtualy anything (different sims, firmware reinstallation, reboots, reset ) nothing happens. As far as i can tell after unlocking the phone cannot read properly no sim at all. It behaves asz a phone whith no sim in it. Try open your phone with no sim and try search for networks. You will get the same error message. I have contacted HTC and awaiting an answer. Where did you found the unlock code?
After you entered the unlock code, you got a pop up message saying something to the effect of "Unlock code successfully entered, rebooting device." Did the device instantly reboot for you or did it take a while? I'm curious as my device just sat there for five minutes before rebooting.
Edit: I should note that I cannot test my device with my foreign SIMs right now, but my T-Mobile connection is working fine post-unlock. Also, it might help to read through this thread. More anecdotal experiences with G2 on other networks in there.
Doesn't work period, the T-Mobile sim card doesn't work either anymore.
jashsu said:
After you entered the unlock code, you got a pop up message saying something to the effect of "Unlock code successfully entered, rebooting device." Did the device instantly reboot for you or did it take a while? I'm curious as my device just sat there for five minutes before rebooting.
Edit: I should note that I cannot test my device with my foreign SIMs right now, but my T-Mobile connection is working fine post-unlock. Also, it might help to read through this thread. More anecdotal experiences with G2 on other networks in there.
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Click to collapse
The device took about 1 minute or so to reboot. And after that not even the original TMo card is working. Where did u get your unlock codes?
gpou said:
The device took about 1 minute or so to reboot. And after that not even the original TMo card is working. Where did u get your unlock codes?
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I didn't mention because I assumed that as long as it works (meaning the popup said the unlock was successfully entered) then it doesn't matter what the source was. I got my code from T-Mobile, who in turn requests the codes from HTC.
I unlocked by inserting a friend's AT&T sim. Strangely, the device didn't give me the unlock dialog at all when I inserted a Chunghwa Telecom (Taiwan) sim. It couldn't register to any networks when my CHT sim was inserted. However, I did not have a "no sim inserted" error in my notification bar, so it's not the same as your situation, I think.
I have tried every solution i can think with no results. I just hope it isn't a hardware fault a it is very difficult for me to return the phone to T-mobile and get a new one
jashsu said:
I didn't mention because I assumed that as long as it works (meaning the popup said the unlock was successfully entered) then it doesn't matter what the source was. I got my code from T-Mobile, who in turn requests the codes from HTC.
I unlocked by inserting a friend's AT&T sim. Strangely, the device didn't give me the unlock dialog at all when I inserted a Chunghwa Telecom (Taiwan) sim. It couldn't register to any networks when my CHT sim was inserted. However, I did not have a "no sim inserted" error in my notification bar, so it's not the same as your situation, I think.
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Its the same. I dont get a no sim error. Sim is found. But network search is dead
Try looking up the APN settings for your network and enter them under Wireless and Networks under settings. I had a similar problem with AT&T when I first unlocked. I had signal but no data.
We get no GSM signal whatsoever. Just shows the "x" next to the cellphone signal. Also getting to *#*#4636#*#* menu shows that both CID and LOC fields are unknown. I also tried to do the sim lock from the recovery menu (press volume down with power key) and it gave me errors as some files are missing, so I'm guessing the unlock did happen but it didn't write something somewhere.
hmfic said:
We get no GSM signal whatsoever. Just shows the "x" next to the cellphone signal. Also getting to *#*#4636#*#* menu shows that both CID and LOC fields are unknown. I also tried to do the sim lock from the recovery menu (press volume down with power key) and it gave me errors as some files are missing, so I'm guessing the unlock did happen but it didn't write something somewhere.
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Click to collapse
Excactly my friend. It cannot read properly the sim properties so it cannot find MCC/MNC and CID of our networks. The error you get in SIMLOCK IS
MCCMNC FILE MISSING
CID FILE MISSING
And another thing i noticed. In a properly working android phone when you create a new apn the MCC and MNC fields are automaticaly filled. But in our case they are blank...
rburg45 said:
Try looking up the APN settings for your network and enter them under Wireless and Networks under settings. I had a similar problem with AT&T when I first unlocked. I had signal but no data.
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Click to collapse
Your problem isn't similar at all. These guys can't get signal or data. Network scan turns up nothing.
jashsu said:
Your problem isn't similar at all. These guys can't get signal or data. Network scan turns up nothing.
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Click to collapse
To be exact network search returns an ERROR.
Yeah my bad, didn't realize their problem was so severe. :/
I have a similar problem except mine is temporary. When I unlock the phone I have no connection. Shows an X on the tray. Try enabling airplane mode and disabling it and still the same. I have to reboot the phone in order for it to connect again. It's only happened twice so far, but was annoying. Hope it doesn't get worse.
I am still using the old SIM card from my Cliq, which was in my Sidekick before that. If it happens one more time I'm going to install the new SIM that came with the phone and see if that helps.
Edit:
Nevermind... My phone is not unlocked. I read the post wrong.
Unfortunately no solution yet. I have read here that an OTA is rolling out. Let's hope it could something when received
How you plan on getting OTA if our phones are not even connected to the cellnetwork??? Just leave it on with wifi???
wifi or someone will post a download link.
So far pleople with the same problem as us are increasing.
D/RILJ ( 5176): [0085]> QUERY_AVAILABLE_NETWORKS
D/HTC_RIL ( 1350): ril_func_get_avail_networks():called
D/HTC_RIL ( 1350): (t=1286918594)>> AT+COPS=?\r
D/HTC_RIL ( 1350): (t=1286918594)<< +CME ERROR: 30\r
D/RILJ ( 5176): [0085]< QUERY_AVAILABLE_NETWORKS error: com.android.internal.telephony.CommandException: G
ENERIC_FAILURE
This is the error through logcat for RADIO
Having the same issue
I noticed in addition that there is a difference i the SIM-lock is enabled or not.
When it is not enabled the "SIM error" icon does not appear and the radio symbol is an "x"
When it is enabled I am asked for the PIN at boot and after I enter it the "SIM error" icon is also shown.
So at least the phone seams to be still reading the SIM but that's about it.
Hello,
improper handling and forgotten the pin code. My 3G is locked (device). With the first SIM card, I have put a code in the "SIM card lock" and I do not know. With my other two cards, I am asked to put the sim code (unlock sim card) and I do not know. How to reset this setting?
Already passed factory mode and nothing .... The little button hard reset nothing. Complete reinstallation with both Volume buttons and start ....
I do not know what to do, there is still no update 2.3 and I'm stuck because really need the 3G. There are Custom Rom? If yes, I could not even install it because I know enough about this kind of manipulation. Thank you for those who can find an idea
Hello,
There is no equivalent to a model Dawa D9?
I think it is possible to use the firmware from another shelf.
Tablet Dropad D10 seems to be none. Someone can confirm ? There may be a chance that this Rom works on my Dawa D9
I flashed in JB AOKP was working fine all of last night. I also entered my SIM Pin or unlock code. The first time I put in an 8 digit unlock code I have. Second time it prompted me I skipped it. I'm pretty sure it was the security pin and not the network unlock. I don't have any other phone's micro SIM I can insert into my phone and a local phone store's T Mobile SIM produced no different of a result except for replacing AT&T with T-Mobile (I have not however put my microSIM into another phone...because I don't have another micro sim phone). Reboot phone this morning and it's no longer working. Tried to enable 2g. Nothing. Tried a battery pull with the phone on, pulling the SIM (same message with SIM pulled out),
Wifi works
This sucks big time ;(
Note: I am pretty sure I did not network lock the phone or anything because the SIM prompt that came up when I flashed JB did not ask me for my unlock or network code (I would have known). The first time I entered that code was 'just in case it's asking me to unlock" but why would it ask me a second time then? So I doubt it was prompting me for a network unlock code. The prompt from youtube videos was different too.
Also APN is empty, but I think that's becasue I'm not connected to any network
Pressing Available networks brings up AT&T AT&T AT&T T-Mobile T-Mobile "311660" pressing any of them you get a quick window connect "too fast" goes back to/stays in available networks screen and says "Can't connect to this network right now. Try again later."
So I added the AOKP and Corresponding kernel yesterday and I mean it was working fine with 4g... apparently this thread says that you need to flash a new radio in some cases when you change kernels?
http://miuiandroid.com/community/threads/no-service-galaxy-s.6529/page-2
zetsui said:
I flashed in JB AOKP was working fine all of last night. I also entered my SIM Pin or unlock code. The first time I put in an 8 digit unlock code I have. Second time it prompted me I skipped it. I'm pretty sure it was the security pin and not the network unlock. I don't have any other phone's micro SIM I can insert into my phone and a local phone store's T Mobile SIM produced no different of a result except for replacing AT&T with T-Mobile (I have not however put my microSIM into another phone...because I don't have another micro sim phone). Reboot phone this morning and it's no longer working. Tried to enable 2g. Nothing. Tried a battery pull with the phone on, pulling the SIM (same message with SIM pulled out),
Wifi works
This sucks big time ;(
Note: I am pretty sure I did not network lock the phone or anything because the SIM prompt that came up when I flashed JB did not ask me for my unlock or network code (I would have known). The first time I entered that code was 'just in case it's asking me to unlock" but why would it ask me a second time then? So I doubt it was prompting me for a network unlock code. The prompt from youtube videos was different too.
Also APN is empty, but I think that's becasue I'm not connected to any network
Pressing Available networks brings up AT&T AT&T AT&T T-Mobile T-Mobile "311660" pressing any of them you get a quick window connect "too fast" goes back to/stays in available networks screen and says "Can't connect to this network right now. Try again later."
Click to expand...
Click to collapse
Pardon my newbness if I'm way off base, but lost IMEI? sounds like the same symptoms I was getting a couple days ago when I flashed CM10.
Kostazu said:
Pardon my newbness if I'm way off base, but lost IMEI? sounds like the same symptoms I was getting a couple days ago when I flashed CM10.
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Click to collapse
...what are you talking about. My IMEI isn't mentioned once in that post. In fact now that you mention it, since people's IMEI changed...nothing like that my phone still has its IMEI
I also did not get a "phone frozen" from entering the wrong code too many times...so I doubt its locked like that. There was a random reboot that I WOKE UP to, but nothing weird...it rebooted randomly but worked finely after that
zetsui said:
...what are you talking about. My IMEI isn't mentioned once in that post. In fact now that you mention it, since people's IMEI changed...nothing like that my phone still has its IMEI
I also did not get a "phone frozen" from entering the wrong code too many times...so I doubt its locked like that. There was a random reboot that I WOKE UP to, but nothing weird...it rebooted randomly but worked finely after that
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Click to collapse
I was proposing the theory that you may have lost your IMEI, since the symptoms you report were very similar to what I was experiencing when I lost mine, however since you still have yours, must be something else, eh?
Kostazu said:
I was proposing the theory that you may have lost your IMEI, since the symptoms you report were very similar to what I was experiencing when I lost mine, however since you still have yours, must be something else, eh?
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Click to collapse
Just flashed an old version of the same rom...still nothing, although this version had 4g lte working for sure gonna try one more flash of the same rom with only some system settings moved around.. I actually need this phone to travel to Europe ;( ffs worst time
Kostazu what was the fix for you?
Ok just flashed Nostalgia which is the stock rom minus bloatware and I get No SIM Insert SIM card (it is in) and when I try to make a call "not registered on network"
zetsui said:
Just flashed an old version of the same rom...still nothing, although this version had 4g lte working for sure gonna try one more flash of the same rom with only some system settings moved around.. I actually need this phone to travel to Europe ;( ffs worst time
Kostazu what was the fix for you?
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Click to collapse
Well, mine was definitely due to a lost imei that happened sometime when flashing.
I did get the network unlock warning thingy twice, and then had no cellular connectivity, which is why I mentioned the lost imei. I restored my nandroid back to stock, then used the method here with a little driver tapdancing to reinject my imei, and that solved my issues, but sounds like you have something else going on.
http://forum.xda-developers.com/showthread.php?t=1801997
If I flash back to stock and no longer have the stock kernel, what is the steps for flashing back then?
1. flash stock kernel
2 fix partitions
3. factory rest/cache/davlik
reboot into oden and flash new image?
Long story short, Don't cut your own microsd..the sim pins on this phone are VERY sensitive and hard to fix/see. Don't bend em.
I am having the same problems right now, I keep on getting " NO SERVICE" - SELECTED NETWORK UNAVAILABLE" Error.
Rebooting doesnt help, flashing modem through CWM doesnt help. I know for a fact that the simcard it good because other apps that I install can read the sim with no problem, and my WIFI is working like a charm.
Someone got a solution for this? This is already like 4 days ongoing, please any help will be appreciated !!
Im having the same no service selected network issue. I can search and find att and the mobile but when I try to have it connect to att that's the error I get. I have an att SIM card in the phone. Sph l720 SIM unlocked, it didn't ask me for an unlock code or anything like that but I also don't get the invalid SIM card error. I've added the main apn from the att website but that doesn't help and the phone is current set to gsm/umts. If anyone has a fix please let me know, thank you.
I have a Moto z2 TMobile version .. received it to try and fix it but it beyond my knowledge ... When u pull sim card it say no sim.when u reinsert it still says no sim card...
When u restart the phone it says nothing about missing sim or no sim at .. I have attached screen shots I have my imei and baseband not sure what else is missing that would work ...
Phone is bl unlocked not rooted currently and is on Oreo ...
Anyone know of a way to fix this or is it just a while phone permanently?
bigfdaddy2 said:
I have a Moto z2 TMobile version .. received it to try and fix it but it beyond my knowledge ... When u pull sim card it say no sim.when u reinsert it still says no sim card...
When u restart the phone it says nothing about missing sim or no sim at .. I have attached screen shots I have my imei and baseband not sure what else is missing that would work ...
Phone is bl unlocked not rooted currently and is on Oreo ...
Anyone know of a way to fix this or is it just a while phone permanently?
Click to expand...
Click to collapse
Obviously, make sure you have a valid sim. You can try going to settings > Networks & Internet, click the 3dots in the right corner and reset your networks. In the same settings, you can go to Mobile network > access point names, hit the 3dot menu and reset to default. I'm not on stock, but I believe there is a setting in system settings to update carrier info, try that as well. If all else fails you might need to factory reset the phone. Have you tried another sim to see if you get any messages about sim? Again, these suggestions assume that the sim you have is good.
Happened to me on sprint moto z2 force. My fix? Extract the sim, put it again..
41rw4lk said:
Obviously, make sure you have a valid sim. You can try going to settings > Networks & Internet, click the 3dots in the right corner and reset your networks. In the same settings, you can go to Mobile network > access point names, hit the 3dot menu and reset to default. I'm not on stock, but I believe there is a setting in system settings to update carrier info, try that as well. If all else fails you might need to factory reset the phone. Have you tried another sim to see if you get any messages about sim? Again, these suggestions assume that the sim you have is good.
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Click to collapse
Have factory reset phone ,Have reset network ,apn and all that is greyed out can't do nothing to them. Sim is still valid as Its the sim I'm currently using in my xiaomi phone ... When u pull sim out it says no sim when u pop it back in says nothing about needing a sim or invalid sim just no network besides wifi ...sim is currently installed in this screen shot ....
EddiePR said:
Happened to me on sprint moto z2 force. My fix? Extract the sim, put it again..
Click to expand...
Click to collapse
I have tried that and so has TMobile store ...
Sim is currently installed and can see no network, no sim error,no invalid sim ... This the screen shot showing what it shows on my
bigfdaddy2 said:
Sim is currently installed and can see no network, no sim error,no invalid sim ... This the screen shot showing what it shows on my
Click to expand...
Click to collapse
Here it is with different sim now says no sim
bigfdaddy2 said:
I have tried that and so has TMobile store ...
Click to expand...
Click to collapse
What did the tmo store say? If nothing is happening it seems like the slot itself has a problem. Can you see down in the slot? Is there anything jammed in there or anything messed up?
41rw4lk said:
What did the tmo store say? If nothing is happening it seems like the slot itself has a problem. Can you see down in the slot? Is there anything jammed in there or anything messed up?
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Click to collapse
They said only thing they could do was send it in under manufacturer warranty .. tried new sim and still no go ... Nothing is jammed in the slot or bent ..only opened sim tray on day 1 I bought it ..
bigfdaddy2 said:
They said only thing they could do was send it in under manufacturer warranty .. tried new sim and still no go ... Nothing is jammed in the slot or bent ..only opened sim tray on day 1 I bought it ..
Click to expand...
Click to collapse
That's odd and it seems like a bad sim slot, defective hardware. The only other thing I can think of to try and it's a long shot is to DL the tmo app, sign in, and verify your sim number and imei on your account. I know it's active and working on the other phone, so maybe there's a glitch or discrepancy between the sim and your z2. You can dial *#06# to view your imei and the sim will have the numbers you need on the sim.
Hi
So before anyone tells me to just insert a SIM and be done with it, please read this first. I'm trying to unlock the bootloader so I can try flashing different ROMs and radios. I had a perfectly working global version of the Redmi 7. After a phone call, the network went off and wouldn't return.
What I've tried so far:
•Trying multiple Sims known to work
•Manual network selection (fails because it can't find any)
•Changing preferred network modes and bands with the *#*#4636#*#* menu. Nothing happens.
•Toggling airplane mode, several times.
•Factory reset, both from within the OS and from the recovery (Vol Up + Power button)
•Attempting to flash a Fastboot version of the latest global MIUI 11 ROM. This actually fails, saying that critical partitions can't be flashed or something.
•All sorts of bootloader unlock tricks, such as the older versions of MiFlash Unlock, using multiple accounts, etc.
I'm honestly stuck here. Any help in fixing my problem would be appreciated. It could be either getting the network to work, or unlocking the bootloader. I can't bind the MiAccount to the phone under developer options ->MiUnlock status or such, because it detects that there is a SIM in the phone alright, but it just can't connect to any network.
The same here %
Was the SIM card's network working before? Maybe you're just in a dead spot?
Darth Bidder said:
Was the SIM card's network working before? Maybe you're just in a dead spot?
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Click to collapse
It was working fine for a few months. It just stopped being able to connect to a network all of a sudden. I swapped SIMs, moved to places with strong network connections (I verified with a different phone) and still nothing.
Selorm611 said:
It was working fine for a few months. It just stopped being able to connect to a network all of a sudden. I swapped SIMs, moved to places with strong network connections (I verified with a different phone) and still nothing.
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Click to collapse
Then you probably should head to a service center to get it fixed.
what happened to this issue
Selorm611 said:
It was working fine for a few months. It just stopped being able to connect to a network all of a sudden. I swapped SIMs, moved to places with strong network connections (I verified with a different phone) and still nothing.
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Click to collapse
hey even i am facing the same issue from yesterday, swapped sim, factory reset from TWRP and system, still its same.
Did you found any fix to this issue or sent it to service center?
Sidboy1999 said:
hey even i am facing the same issue from yesterday, swapped sim, factory reset from TWRP and system, still its same.
Did you found any fix to this issue or sent it to service center?
Click to expand...
Click to collapse
I had to buy a different phone. We couldn't get anyone to fix it.
Selorm611 said:
I had to buy a different phone. We couldn't get anyone to fix it.
Click to expand...
Click to collapse
Same, i did ask in service they said that they have to replace the whole PCB which will cost somewhere around 6k, so i just bought a new phone by replacing it on amazon for 5k
Same issue im having here but with a new POCO F2 pro. Since inception i was not able to get signal on it
I need to root my redmi 6a but bootloader makes a big trouble for me .for unlocking bootloader there must be sim in that device.but I doesn't have a sim card and even if I insert it, my sim board is damaged. So is there a way to unlock bootloader without inserting sim.