S20 Sprint - unlocked " No network connection error"" - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

I have S20 sprint version which is now unlocked through one of the vendors online, however when I try to insert the sim I get error "No network connection" I tried factory reset with the non-sprint sim card, no luck. Attached are some screen shots, wanted to check if there is something y'all would can recommend to fix it.
Thanks in advance.

Related

Guys help. Noob here.

Hey guys, i just received my Sony Ericson Xperia Arc S from japan (docomo). I just boot it, everything is fine until I insert the sim card, Im from Philippines and I'm new to android phones so i can't tell if this phone is unlock to all sim. I tried to scan the network and it detects all of the carrier in my country but i always prompted to this after i choose my carrier "your sim card does not allow connection to this network".
Your response will be much appreciated.
try with some other carrier sim cards on your phone...
williamcharles said:
try with some other carrier sim cards on your phone...
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Click to collapse
Ok i will try, but if that fail? I recently find out over searching the net that my phone is not rooted.
diomancer said:
Ok i will try, but if that fail? I recently find out over searching the net that my phone is not rooted.
Click to expand...
Click to collapse
Your phone does not have to be rooted to be unlocked. A carrier unlock is totally different. it allows you to use any sim card in your device. Rooting gives you access to the hidden file system that actually runs the phone.
I think you should contact your cell provider to replace the sim.
first try it with a different carrier's sim. if its working then ask your provider for a sim replacement. if its not working then your phone is probably carrier locked. (of course if reception is fine at your location)

[Q] Phone not allowed mm#6 error message

Phone: SHG-I317
Carrier: AT&T
Current Firmware: 4.1.1
Hey guys, I purchased this phone and have yet to officially activate it. I downgraded from 4.1.2 so that I could unlock it to work on other networks. I did the unlock procedure and I attempted to put in a METRO PCS Sim card but I get: Phone not allowed mm#6. The phone is not blacklisted as Ive checked numerous sites online and even went to a AT&T store and they were able to pop a AT&T Sim card in and it worked just fine.
I tried to search this issue but the only thing I can come up with was that it could possibly be blacklisted but Ive ruled out that possibility for now.
Could it be that the unlock was unsuccessful and I need to do it again? But then how am I supposed to know that it was successful without another carriers sim card? is there something that changes in the settings or something?
Thank you very much for your help.
http://forum.xda-developers.com/showpost.php?p=51349788&postcount=4

SM-N975U Att note 10+ service issues

I have a att note 10+ that I sim unlocked it will take a Verizon sim and work 100% but it will not work with straight talk i have no service can't call text and no data every once in awhile a text will get thru but can anyone help me with this I can't root because I can't oem unlock unless there is another way any help would be appreciated
ackaite said:
I have a att note 10+ that I sim unlocked it will take a Verizon sim and work 100% but it will not work with straight talk i have no service can't call text and no data every once in awhile a text will get thru but can anyone help me with this I can't root because I can't oem unlock unless there is another way any help would be appreciated
Click to expand...
Click to collapse
Did you set the APN information correctly?
Also are you using the N975U1 firmware or the standard AT&T firmware?
Are you using the BYOD sim card from straight talk?
What have you done over the phone with Straight Talk as far as troubleshooting? - this one can be important. If the phone isn't working with straight talk only it maybe a configuration (apn setting) or provisioning issue.
Are you sure the device is compatible with the area or region your in?
What provider/tower (Verizon, AT&T, etc.) does straight talk have you going through?
More information on what you have done to setup the phone for straight talk, troubleshooting steps you have taken, what information straight talk may have provided (etc. etc.) will help others be able to help you. Providing little or no details makes it rather hard to offer any help.
The apn won't let me put dun in the type I sim unlocked it with a puk code and got strighttalk byop I tried flashing the U1 firmware to it wouldn't take it so I did a Verizon firmware thinking that might help and same thing with the striaght talk it doesn't wanna work i put a Verizon sim in it and it works just like it did on ATT so I'm confused as to why the straight talk sim won't work they can't figure it out on their end either
I factory reset the phone reset network settings did just about everything I could with the phone besides it being funny about the apn cuz it says apn cannot be changed on this device if you put dun in the apn type i dunno the only thing I notice is when the Verizon sim card is in the phone the network mode is set to global whereas with the striaght talk its LTE/CDMA and it won't let you change it to global
ackaite said:
The apn won't let me put dun in the type I sim unlocked it with a puk code and got strighttalk byop I tried flashing the U1 firmware to it wouldn't take it so I did a Verizon firmware thinking that might help and same thing with the striaght talk it doesn't wanna work i put a Verizon sim in it and it works just like it did on ATT so I'm confused as to why the straight talk sim won't work they can't figure it out on their end either
Click to expand...
Click to collapse
Straight Talk uses different mobile providers to offer service different areas.. They utilize Verizon, AT&T, Sprint and T-Mobile (Sprint and T-Mobile have merged recently, but Sprint towers are still active).
I have seen posts across the internet that indicate you should be using the U1 firmware on the phone.. I would make sure your converting the phone to the U1 firmware properly.
If I recall correctly (this is how I did it previously) when flashing the U1 firmware make sure your doing it without the sim card installed and using the non home_csc file. Factory data reset the phone after you successfully flash the U1 firmware and then insert the sim card after setting the phone back up (so it can apply the new sim/network settings).
I would strongly suggest you do not restore a backup during initial setup when you do this. If you restore a backup it may restore previous network settings/configurations that were for what you had previously.
If flashing U1 firmware doesn't help (and since this this is a Straight Talk specific issue) then it's more then likely on the end of Straight Talk. I would call them and make sure that your sim card is the correct one for the cell towers they have you going through and the phone you have. Using an incompatible sim card (or one that is faulty) can cause issues like this. You can also have them send you another sim card to try.
Also contact them to make sure the service is properly provisioned and activated on your phone. Double check the APN with them, and see if they have an alternative one to try. It is also possible that a service outage maybe (or issue with Straight Talk internally) in your area, so I would call them to make sure that neither are not the case here.
ackaite said:
I factory reset the phone reset network settings did just about everything I could with the phone besides it being funny about the apn cuz it says apn cannot be changed on this device if you put dun in the apn type i dunno the only thing I notice is when the Verizon sim card is in the phone the network mode is set to global whereas with the striaght talk its LTE/CDMA and it won't let you change it to global
Click to expand...
Click to collapse
The Global setting doesn't really matter in this case and your phone will be set to use the towers that Straight Talk has you going through.
The only thing that I can think of that would be a problem with network mode is if your sim card from straight talk is meant for a different provider then the towers they use in your area (i.e. sim card is for AT&T but the provider they have for the area is Sprint).
the straight Talk sim works in other phones no problem a s8 and a older note im thinking att has something in the software to block other apns i dunno i unlocked it with a PUK code and flashed verizon firmware on it thinking i could get passed it but the verizon sim works 100% and the att sim works 100% too but a straighttalk sim card (verizon) towers the phone tries it shows 4g and disappears and then it shows it has service but cant call it just says emergency calls only
ackaite said:
the straight Talk sim works in other phones no problem a s8 and a older note
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I would not use older phones as a means to say the sim card is good. Besides that's irrelevant to what is going on with the Note 10+
ackaite said:
im thinking att has something in the software to block other apns
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Then this means one of two things... Either you didn't get the phone unlocked or else you did not convert to another carrier (or the U1 firmware XAA region) correctly.
If your using the unlocked firmware (U1 XAA region) then you should be able to edit the APN. If not then you should be able to create one.
ackaite said:
i dunno i unlocked it with a PUK code and flashed verizon firmware on it thinking i could get passed it but the verizon sim works 100% and the att sim works 100% too but a straighttalk sim card (verizon) towers the phone tries it shows 4g and disappears and then it shows it has service but cant call it just says emergency calls only
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That sounds like either the sim card isn't good, the phone was not activated/provisioned properly in there systems (call them and double check IMEI and model information), the phone is not compatible with the service they offer in your area (I suggest using the XAA region U1 firmware in this case) or else your phone is not fully unlocked.
I would also suggest google searching or else asking them for any updated or alternative APN's to try. It maybe very likely the one you have is not suitable for the phone/area... It wouldn't be the first time I have had an issue similar to this like this.
I am opt to believe the first 3 are the most likely scenarios since the phone works on Verzion with the sim card per your indication.
Yeah and the only reason I tried the older phone is to see if the sim card is activate with the number and the phone itself pulled the apn from network when I tried to flash to U1 the phone gave me a error but it took the Verizon firmware for the 975U but its still not working do you know of a good link for the firmware your talking about so I can try that
ackaite said:
Yeah and the only reason I tried the older phone is to see if the sim card is activate with the number and the phone itself pulled the apn from network
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From personal experience I would advise in the future you don't do that. When you activate the phone you should activate the one you are using and definitely do not use an older phone to activate a newer phone. I have had many problems with this in the past as provisioning for an older phone didn't always work for my newer ones..
ackaite said:
when I tried to flash to U1 the phone gave me a error but it took the Verizon firmware for the 975U but its still not working do you know of a good link for the firmware your talking about so I can try that
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Click to collapse
I waited for you to give more information on the issue, but you didn't. So I am sorry, but if you don't provide the details of what is going on it makes helping you very difficult. You didn't say what error you are getting, what the firmware version(s) are of what your trying to flash and what is currently on the phone.
Here's the last piece of help I can offer now.
I can tell you that the following can be found on the forum by searching:
Links and how to obtain the firmware - Multiple threads asking the same question exist here. Also Frija, SamFirm, SamMobile are just a few examples of what can be found referenced here.
Bootloader version(s) - what will happen when you try to downgrade and what will happen (along with a important thing) when you upgrade.
Websites to find firmware - SamMobile and some others have been mentioned.
Patched Odin - In case you need the latest version it has been mentioned here already.
I can also tell you that by using Google and searching for SM-975U1 XAA on Sammobile does in fact work.
Brother give me root file for note 10 plus SM-N975U android 10 version one Ul version 2.5 plz help me

Sprint A50 (Sim card crashed)

I installed XAA U1 Firmware on my unlocked Sprint A50. Changed the CSC to XAA/XAA/SPR and the phone started displaying "Sim card crashed".
Please contact customer services.
Whenever i try to search for networks. It comes up with error while searching for networks.
Can anyone help me with this?
use original firmware instead
Tarar said:
I installed XAA U1 Firmware on my unlocked Sprint A50. Changed the CSC to XAA/XAA/SPR and the phone started displaying "Sim card crashed".
Please contact customer services.
Whenever i try to search for networks. It comes up with error while searching for networks.
Can anyone help me with this?
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Click to collapse
Were you able to solve this? I am in the same dilemma right now
Tarar said:
I installed XAA U1 Firmware on my unlocked Sprint A50. Changed the CSC to XAA/XAA/SPR and the phone started displaying "Sim card crashed".
Please contact customer services.
Whenever i try to search for networks. It comes up with error while searching for networks.
Can anyone help me with this?
Click to expand...
Click to collapse
Any luck with this? I am thinking about buying a Sprint A50 (SM-A505U) and flashing it with the T-mobile firmware (SM-A505U1) TMB. Wanted to see what your experience was before I made the purchase. I need the phone to work on T-mobile.

SIM card is not from Verizon Wireless - Help please!

I switched my carrier from Verizon to PureTalk. Verizon says my phone is unlocked, even when they try to unlock my phone it gives them the pin of 00000000. I still get the notification of "SIM card is not from Verizon Wireless". I am at a loss as to how to fix this, I had to edit the APN to allow me to have data & MMS. everything seams to be working as of right now, except the phone gives me that message and I get the Verizon splash screen and of coarse all of the bloatware! I am looking into doing a firmware install, however, I'm not sure which is the correct one and unsure if this will fix the message. I have downloaded the latest firmware labeled as USA/USC from SAMMOBILE - Firmware.
I want to make sure moving to this firmware would resolve this message before I attempt it or if there is something I need to do before moving to a new firmware!
Any help is much appreciated!

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