Emummc/stock problem npns 2162-0002 010000000000002F

[Apolinko]

I found something interesting. I can't connect to the internet on the stock ofw and on emummc cfw. This is fresh install of the switch and there are 90dns, exosphere, DNS MITM. but everytime when i try to connect to the internet i will get error code 2162-0002 and program 010000000000002F. Here is fatal reports log file. I tried maybe almost everything what i could. I can't do anything on my switch. Maybe i made something on ofw but i dont think so.

 

[Apolinko]

Fixed after 3days hard work (not that hard work) but it was all around serial number that was blanked and rewritten by xaw10000000. When i haven't had saved the backup files on notebook, than i maybe couldn't recover my serial number. I had to format sd card to exfat, because backup file was 29GB. (On exfat i was working 2years and after that i switched to fat32 and everything goes downhill) EVERYTIME BACKUP SYSNAND to know to recover your ofw firmware serialnumber etc.
Never blank your OFW serial number.
If someone doesnt have backup of switch, try finding forum of changing serial number.

 

[mrm207]

Fixed after 3days hard work (not that hard work) but it was all around serial number that was blanked and rewritten by xaw10000000. When i haven't had saved the backup files on notebook, than i maybe couldn't recover my serial number. I had to format sd card to exfat, because backup file was 29GB. (On exfat i was working 2years and after that i switched to fat32 and everything goes downhill) EVERYTIME BACKUP SYSNAND to know to recover your ofw firmware serialnumber etc.
Never blank your OFW serial number.
If someone doesnt have backup of switch, try finding forum of changing serial number.

does the backup need to be from when the error didnt occur?

 

[milander]

Fixed after 3days hard work (not that hard work) but it was all around serial number that was blanked and rewritten by xaw10000000. When i haven't had saved the backup files on notebook, than i maybe couldn't recover my serial number. I had to format sd card to exfat, because backup file was 29GB. (On exfat i was working 2years and after that i switched to fat32 and everything goes downhill) EVERYTIME BACKUP SYSNAND to know to recover your ofw firmware serialnumber etc.
Never blank your OFW serial number.
If someone doesnt have backup of switch, try finding forum of changing serial number.

I seem to be in the same predicament you were.

And, I'm pretty noob at this. Are you able to guide me step by step what did you do?
Thanks in advance.

 

[petspeed]

You need to block Nintendo servers. I recommend that you use DNSmitm to do that. Instruction here: https://rentry.org/ExosphereDNSMITM

 

[deeps]

enter airplane mode, start JKSV, make sure "Enable Writing to System Saves" is enabled in settings, find system save 00000110, title options -> open in file mode, delete penne_persistent.bin, close jksv, disable airplane mode and connect to wifi. voila!

Post automatically merged: Saturday at 7:46 PM

You need to block Nintendo servers. I recommend that you use DNSmitm to do that. Instruction here: https://rentry.org/ExosphereDNSMITM

that does not solve this crash. solution provided above

 

[Ffedfg]

does the backup need to be from when the error didnt occur?

i dont have a backup and i have the same problem what do i do? how can i solve this?

Post automatically merged: Sunday at 6:23 PM

does the backup need to be from when the error didnt occur?

i have the same problem and i dont have a backup. I can cannot boot in ofw but i can boot hekate. What can i do without a backup?

 

[deeps]

i dont have a backup and i have the same problem what do i do? how can i solve this?

Post automatically merged: Sunday at 6:23 PM

i have the same problem and i dont have a backup. I can cannot boot in ofw but i can boot hekate. What can i do without a backup?

the solution is literally right above your post

 

[AstroSA]

enter airplane mode, start JKSV, make sure "Enable Writing to System Saves" is enabled in settings, find system save 00000110, title options -> open in file mode, delete penne_persistent.bin, close jksv, disable airplane mode and connect to wifi. voila!

Post automatically merged: Saturday at 7:46 PM

that does not solve this crash. solution provided above

Thank you so much, been trying to use CFW on a brand new switch. Had to downgrade everything (hekate, atm and firmware) but ran into this issue for 4 hours non stop, worked like a charm.

 

[petspeed]

enter airplane mode, start JKSV, make sure "Enable Writing to System Saves" is enabled in settings, find system save 00000110, title options -> open in file mode, delete penne_persistent.bin, close jksv, disable airplane mode and connect to wifi. voila!

Post automatically merged: Saturday at 7:46 PM

that does not solve this crash. solution provided above

Can you explain what causes this issue? I am curious

 

[deeps]

Can you explain what causes this issue? I am curious

(best guess) it's a system save created in 19.0.1 when the switch goes online that had a different format in older firmware versions, so when the older firmware find the save they crash when trying to read that file