HELP!!! No service/no SIM card inserted?

[DAXX]

Hi! So I have a Note 8 SM-N950N (SK) it says that I have SKC variant in the bootloader. I tried to upgrade the firmware due to some issues with the stock rom and now I don't get any service. I can make or receive any calls, nor does it show that I have LTE service. It's like I don't have a SIM card inserted when it's still in there. Does anyone have a solution for this? I purchased it from amazon for about 3 months ago...

 

[sefrcoko]

Hi! So I have a Note 8 SM-N950N (SK) it says that I have SKC variant in the bootloader. I tried to upgrade the firmware due to some issues with the stock rom and now I don't get any service. I can make or receive any calls, nor does it show that I have LTE service. It's like I don't have a SIM card inserted when it's still in there. Does anyone have a solution for this? I purchased it from amazon for about 3 months ago...

Have you checked your APN settings?

 

[DAXX]

I don't see how that has to do with any of it if it can't read SIM cards when you factory reset it or reflash the firmware?

 

[sefrcoko]

I don't see how that has to do with any of it if it can't read SIM cards when you factory reset it or reflash the firmware?

Well you never mentioned factory reset or reflashing firmware, to be fair. You only said you "tried to upgrade" (could have been OTA/Odin, successful/unsuccessful, etc.). Don't know what specific firmware versions you tried either. Anyhow, if the APN settings were off it could explain certain issues with service. If It's not the case, then maybe someone else will be able to help you out with other troubleshooting suggestions.

 

[shouren04]

Yup, it would help if you posted what fw/rom you were on & what fw/rom you tried to "upgrade" to & how (TWRP, Odin, OTA).

I've seen that happen when trying to use an older bl ver than what was on the phone.

 

[j_hansen]

did you flash just fw or also modem/bootloader?
I had a similar problem with a note 3 recently and after also flashing those it worked

---------- Post added at 03:59 PM ---------- Previous post was at 03:59 PM ----------

did you flash just fw or also modem/bootloader?
I had a similar problem with a note 3 recently and after also flashing those it worked

 

[mirko12]

Hello, i have the same problem, i flashed linage and it was ok, after that i tryed ironman rom and after that i had no simcard. What can i do? I tried a modem flash but it dont work.
Thank you
Mirko

Fixed by @BIOKNOX

 

[mirko12]

ok, Problem was found by BIOKNOX, he helped me to fix my Phone.
Thanks a lot.

Mirko