I recently unlocked my Galaxy J7 Sky Pro from the tracfone carrier (called them, got two codes, put them in and device said it is now unlocked).
Now when I try to insert a different sim card the phone seems to have no service, even though the sim card is recognized (asks me for the pin and logs in properly). In fact that sim card is a prepaid european one, from the german carrier O2, but since J7 Sky Pro can do LTE connection I though that should work fine?
What do you guys think, is there something I could do to fix the issue?
My exact model is:
SM-S727VL
And android version is:
6.0.1
One kind of annoying thing is that even though I unlocked the phone, it still shows the tracfone logo on startup. Maybe the firmware is preventing the european sim card to connect to a tower? Is there some "international" version of firmware I could update to to make it work?
Thanks for any suggestion!
Related
Hi there,
I rooted my phone. I've installed Cyanogenmod 7 and enjoyed it. However, it is SIM locked. I purchased an unlock code... but now I can't enter it.
This person had the same problem:
http://forum.xda-developers.com/showthread.php?t=1313393
Cyanogenmod does not prompt to unlock even with a foreign SIM card.
The solution was to revert to a stock firmware. Which is great... except for the fact that my phone's model number is:
i5500m.
It's the dreaded Canadian version. I can't find firmware for it anywhere. I've tried Check FUS:
Product Code: GT-I5500YKMVMC
No firmware info retrieved for given data.
Generally it seems like I only have two solutions... and one failure.
The first solution is to find a stock firmware for this phone. Or receive a backup from someone who has the stock firmware with Clockworkmod.
The second solution is to enter the unlock code without the prompt. Is there a way, an app, or a hack to do something like this?
My failure is to accept that there's no reverting. But I don't really want to do that.
Oh, and thank you for welcoming me into your forums. XDA Developers is a really amazing site. I've thanked it plenty of times for saving my ass.
Thanks for your time,
Sacrosaint.
Your answer may be found here:
http://forum.xda-developers.com/showthread.php?t=1149110
Look closely at the latest changelog and notice that point 12 states -
"Network: SIM lock messages will no longer be ignored. This may help people who have problems using SIM cards that require a PIN unlock."
Good luck
________________________________________________
Please press "Thanks" if you found me helpful.
i5500
CM7 1.9 hf3
I5500BVJJP9
Thank you so much! I missed that update by only two days. I'm sure this will help many people.
I'll edit this post with my results once completed.
Thanks again!
Sacrosaint.
---------------------------------
Results:
So I updated the ROM. I did not do a data-wipe. I inserted a foreign SIM card. It says it's connected but I'm not getting any service... I don't believe it's unlocked, as I haven't entered a code yet.
Perhaps I should do a data-wipe and retry. I'll repost afterward.
---------------------------------
Potential Final Update:
Odd! I inserted a Rogers SIM card into my phone running CyanogenMod and although no unlock code appeared... it worked. Also known as: my phone is unlocked.
Some interesting thoughts concerning this:
My phone model is i5500m. It comes locked to Bell or Virgin Mobile in Canada.
Upon trying the bml5 unlock method, my code came up as "01234567." Others experiencing this problem concluded that the phone was hard locked.
However, it would appear that flashing this ROM effectively removed the SIM lock. That means that originally, the SIM lock was a part of the firmware. That is slightly scary. I wish I would have come to this conclusion earlier, however, as I paid a premium of $40 dollars to unlock it (at least I supported a local business.)
So: for i5500m or Canadian Samsung Galaxy 5 users to unlock their phones, they must simply root and flash a custom ROM. Originally mine was from Bell, and it has worked with a Rogers SIM card. I'll possibly update this tomorrow when I try the phone with a Koodo SIM.
Hope this helps someone out there.
Sacrosaint
Sacrosaint,
I have an unlocked GT-I5503YKAINU running baseband I5500LUYJP2 and ROM CyanogenMod-7.2.0-RC0-galaxy5-v1.9. I inserted a Virgin Mobile Canada SIM card and do not get Service. With a Rogers SIM card, I do get Service. I spoke to people at Virgin and they said it's because my phone doesn't support HSPA+. The reason it works with Rogers is because it supports GSM.
I'm wonder if there's a way to install the baseband firmware from GT-I5500YKMVMC and still use CyanogenMod-7.2.0-RC0-galaxy5-v1.9?
asawrup said:
Sacrosaint,
I have an unlocked GT-I5503YKAINU running baseband I5500LUYJP2 and ROM CyanogenMod-7.2.0-RC0-galaxy5-v1.9. I inserted a Virgin Mobile Canada SIM card and do not get Service. With a Rogers SIM card, I do get Service. I spoke to people at Virgin and they said it's because my phone doesn't support HSPA+. The reason it works with Rogers is because it supports GSM.
I'm wonder if there's a way to install the baseband firmware from GT-I5500YKMVMC and still use CyanogenMod-7.2.0-RC0-galaxy5-v1.9?
Click to expand...
Click to collapse
What the representative said was true.
Virgin is both HSPA+ and CDMA. The Galaxy 5 IS a GSM phone. Its radio will not work with other frequencies.
You will want to go with Bell, Rogers, Telus, Fido, or Koodo, the GSM suppliers, my friend.
Hi, i have some problems with No Sim Card detected on Samsung Galaxy S III I9300 from T-Mobile (Austrian)
Firstly i unlocked the phone at the shop and was really unlocked on all sim cards but than i did a factory reset and the phone no longer detects sim card from other carriers, it only detects sim card from T-Mobile, It dosen't even shows the menu when you turn on the phone for network unlock.
I tryed using those secret codes to show the network unlock menu but they didn't work since the phone was updated to 4.3 firmware.
So i followed this guide on androible downgrade-galaxy-s3-i9300-android-4-3-android-4-1-2-jelly-bean-firmware
To downgrade to 4.1.2 firmware along with provided modem file. The secret codes now do show menu's but when i click on UMTS RF NV it says it's not supported.
Also instead of downgrading to T-Mobile 4.1.2 Firmware i downgraded it to Orange 4.1.2 Firmware hope that dosen't effects it in anyways? Phone otherwise works just fine IMEI Number shows OK.
I tryed 2 different SIM cards from orange none of them worked, it only detects SIM from T-Mobile.
To recap it all agean: I wish to unlock this phone so i can use different SIM card's but the phone is on NO Sim card, emergency calls only but when i insert T-Mobile Sim it works, Also there is no Network Unlock Menu shown durning turn on or reset since i already Unlocked the phone once with a code. Does anyone has any clue how to fix this or unlock it without rooting the phone.
Hello everyone,
I need some assistance regarding using a Boost Moto E 2015 XT1526 overseas.
I was using it in the U.S. with a foreign SIM card with no issues, recently I sent it overseas so my mom could use it. (I never got to active it with Boost or Ringplus or Sprint)
The problem is that the phone is not recognizing any SIM card there, the phone says that there is no SIM and only emergency is available.
Does anyone know why this is happening? Since the phone wasn't activated I'm wondering if during the boot process the phone searchs for Sprint network before activating the SIM card slot, and since it can't find it blocks the slot.
Could this be a posibility? If yes, is there any work around?
The phone has the bootloader unlocked, the OS is 6.0.1 Marshmallow (based on CyanogenMod 13).
There are ways to circumvent the activation screen.. Your issue seems to be with the Bands used by your Mom's country. You need to first get the carrier info of the SIM that would be used and the Bands supported by the carrier. Then use QPST, DFS or any such tool to update the RF bands in the phone it should work.
tristar said:
There are ways to circumvent the activation screen.. Your issue seems to be with the Bands used by your Mom's country. You need to first get the carrier info of the SIM that would be used and the Bands supported by the carrier. Then use QPST, DFS or any such tool to update the RF bands in the phone it should work.
Click to expand...
Click to collapse
Hi Tristar,
I know what carrier is her SIM card from and it uses GSM 900/1800 MHz, do I need any other info from the carrier? Also, do you have a tutorial link that I can follow for using QPST? I found some procedures online but I'm not sure they are quite what I need so I'm a little concern that I could brick the phone.
Thanks a lot for your help!
Sure thing @Marty_mcfly10, here you go follow this link https://forum.xda-developers.com/cr...nywhere, then let me know, will help you out.
Hi,
After an update to 8.0 security patch 2018 April my phone lost the network.
Carrier didn't find any failure, they told th Sim card is not compatible with the the sim card? Is it possible? Other carrier SIMs working, only UPC mobile card has the issue.
Samsung service prowed it is perfect, still the same issue.
I got some message as phone not usable, now only no network.
Do you have any hint to follow?
Thank you!
Hopefully there is someone here more knowledgeable than myself that can help me. I recently ordered an S9+ SM-G9650 model from amazon with the intent of unlocking the bootloader, etc. When I got it, everything looked alright, but I got to a point in the setup when I couldn't progress without putting in a sim card. I did and it rebooted twice, one of those times showing a blue screen that from my research seems to be related to CSC and changing the software region based on the sim card inserted. My sim card is a US Tracfone AT&T version sim card by the way. After that, I finished setting up the phone and found the model number to be SM-G965U1. I have factory reset from the bootloader and from within android to no avail. From my research the CSC region change thing can only change the CSC values to certain values based on the phone's actual model number, and not the model number itself. What I am saying is, is it possible that my US sim card somehow changed my phone from the bootloader-unlockable SM-G9650 model to the locked SM-G965U1 model, or did I actually receive the wrong model device?
cosmogroid said:
Hopefully there is someone here more knowledgeable than myself that can help me. I recently ordered an S9+ SM-G9650 model from amazon with the intent of unlocking the bootloader, etc. When I got it, everything looked alright, but I got to a point in the setup when I couldn't progress without putting in a sim card. I did and it rebooted twice, one of those times showing a blue screen that from my research seems to be related to CSC and changing the software region based on the sim card inserted. My sim card is a US Tracfone AT&T version sim card by the way. After that, I finished setting up the phone and found the model number to be SM-G965U1. I have factory reset from the bootloader and from within android to no avail. From my research the CSC region change thing can only change the CSC values to certain values based on the phone's actual model number, and not the model number itself. What I am saying is, is it possible that my US sim card somehow changed my phone from the bootloader-unlockable SM-G9650 model to the locked SM-G965U1 model, or did I actually receive the wrong model device?
Click to expand...
Click to collapse
More than likely wrong model. It didn't change the bootloader. I run a9650 on cricket. I would send it back and raise hell i see this happen a lot