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OTA and Non-OTA Firmware for N986U and N986U1

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ltmikepowell

Member
Jan 29, 2013
18
6
So, here you've done what I've been trying to do. But I'd like to NOT wipe my phone.
Is that possible?
I want to go from U1 with DUDD to T-mo N986USQU2DUE1 to get eSIM, but not wipe my wife's phone.

Thanks!
You have to wipe it. Because when my device finished flashing the U firmware, it give me Incorrect PIN at lock screen, and there is no way to bypassing it. After I wipe the device and go through the initial setup that I was able to use my phone again.

I did not use USER_DATA (only BL, AP, CP and CSC) so that probably why I have to manually wipe my phone. I backup my phone using SmartSwitch beforehand so I did not lose anything.
 
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hayabusa1300cc

Senior Member
Jun 8, 2007
2,505
755
HOUSTON TEXAS
www.facebook.com
Look at this

Screenshot_20210610-042616_Software update.png
 

FedeAle

Senior Member
Mar 20, 2015
58
9
Hi guys, I'm sorry if this was asked before, but I am tryng to install the last u1 firmware on my att note 20 ultra, that is never updated. I downloaded odin 3 patched and insert all the AP BL CP and HOME_CSC for a dirty flash. The phone is connected to my pc and detected by odin, but when I try to start odin stuck at "setup connection" and nothing happens. Why?
 

kangi26

Retired Forum Moderator
Nov 8, 2006
5,709
2,503
Seattle
Hi guys, I'm sorry if this was asked before, but I am tryng to install the last u1 firmware on my att note 20 ultra, that is never updated. I downloaded odin 3 patched and insert all the AP BL CP and HOME_CSC for a dirty flash. The phone is connected to my pc and detected by odin, but when I try to start odin stuck at "setup connection" and nothing happens. Why?
You have to use the regular CSC, not the HOME_CSC. You cant dirty flash going to/from U to U1 and vice versa.

Edit: I might also suggest doing a wipe before flashing. You dont HAVE to, but it's something I do if a flash isnt going according to plan
 
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Swendo

New member
Jun 18, 2015
2
0
I recently changed from Verizon to Spectrum and have been having issues with the branding and my voicemail not working. I flashed to the topmost Bootloader 2 firmware N986USQS2DUE2 and everything is still saying Verizon. I went into my software information and it installed correctly so I'm not sure what my issue is. Am I misunderstanding what I should be doing to fix that or do I need to do something else? Any help would be appreciated, thanks!
 

rjohnstone

Senior Member
I recently changed from Verizon to Spectrum and have been having issues with the branding and my voicemail not working. I flashed to the topmost Bootloader 2 firmware N986USQS2DUE2 and everything is still saying Verizon. I went into my software information and it installed correctly so I'm not sure what my issue is. Am I misunderstanding what I should be doing to fix that or do I need to do something else? Any help would be appreciated, thanks!
Spectrum is using Verizon's network.
Open up settings/about phone/software information, and look at your "service provider software version" info.
A Verizon phone would read VZW/VZW/VZW with a Verizon SIM installed.
Spectrum a.k.a. Charter Wireless, CSC code is CHA.
It should recognize the Spectrum SIM and show as VZW/VZW/CHA.
If it still shows VZW/VZW/VZW, you may have to do a factory reset with the Spectrum SIM card installed.
 
I have a similar issue, I have U version with Verizon, but i have switched to ATT. Every time i call it drops to 3g. I flashed to U1 version with ATT sim inside and it still shows vrw/vrw/vrw. After, flashing I still got the recent DUE1 from verizon. when i call now it drops to 2g. Still dont have volte, which is the only reason i flashed to begin with. What can i do?
 

Swendo

New member
Jun 18, 2015
2
0
Spectrum is using Verizon's network.
Open up settings/about phone/software information, and look at your "service provider software version" info.
A Verizon phone would read VZW/VZW/VZW with a Verizon SIM installed.
Spectrum a.k.a. Charter Wireless, CSC code is CHA.
It should recognize the Spectrum SIM and show as VZW/VZW/CHA.
If it still shows VZW/VZW/VZW, you may have to do a factory reset with the Spectrum SIM card installed.
I checked and it said VZW/VZW/VZW so I factory reset but it still says the same thing when I went back to check once I reset so I'm not sure what else to try now.
 
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kangi26

Retired Forum Moderator
Nov 8, 2006
5,709
2,503
Seattle
I'm in a similar situation. I am thinking of flashing from Verizon U1 version to ATT U version. Any thought?
Unless the VZW and ATT firmware are the same build, the main thing that will get you is it will break OTA for you.
The firmware itself is basically the same. If you look at the DUE1 U firmware it is the same build for ATT/VZW/TMB/SPR. The difference is the SIM that you have installed in your device. You're flashing the exact same files
 
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