Does anybody know how to downgrade an AT&T Galaxy S7 from Nougat back to Marshmallow?

theFOoL · May 27, 2017

Well too sad. Verizon should have 7.0 for our LG G4 soon and i can downgrade without Boot-looping or anything. The way i see it is they tend to mess things they shouldn't. Like Battery Life for 6.0 was Awful! They probably messed with the Kernel

biffzinker · May 27, 2017

Rehmanpa said:
Never again samsung you mofos (samsung).

Don't forget the carriers messing it up as well.

theFOoL · May 27, 2017

biffzinker said:
Don't forget the carriers messing it up as well.

Too True! As Verizon has so many Apps they Bloat the phone with! Just simply disable them

johnnic · Aug 19, 2017

Rehmanpa said:
The title pretty much says it all. I'm trying to revert my phone from Nougat to Marshmallow. Does anyone know how to do this for an AT&T Galaxy s7? This is just a normal one not the edge.
Please help!!! The thing is almost unusable on this pos update. Thanks.

I have managed to downgrade from Nougat to Marshmallow on my Samsung Galaxy S7 so easily using a very simple method like flashing a firmware manually like I use to using Odin by following the instructions from the post https://www.installandroidrom.co.uk...7-and-s7-edge-from-nougat-to-marshmallow.html

eidairaman1 · Aug 19, 2017

Goodluck, all i can say is try xda forums.

ATT/VERIZON typically lock down the bootloaders so you can't downgrade, that is why i got a carrier unlocked tmobile phone.

Frick · Aug 19, 2017

Rehmanpa said:
Yep I did when it installed no help. I'm just good with phones and I don't want to brick this thing

Old reply, but you might have to do a factory reset again. I don't know why, but on the phones I've upgraded a factory reset on top of the upgrade solved many issues.

System Name	BoX-Server \| 775PC
Processor	I3 3.5GHZ (3150) \| Modded Xeon E5450 (OC @3.60)
Motherboard	ASRock B85M-ITX \| ASUS P5Q-EM
Cooling	OEZM HSK \| 92MM Heatsink RGB
Memory	8GB DDR3 \| 8GB DDR2
Video Card(s)	AMD 6450 \| AMD RX 550 4GB
Storage	120GB SSD 1TB WD \| 120GB SSD 1TB Seagate 500GB HDD <<
Display(s)	DELL 17" LCD 1280x1024 \| ASUS 24" LCD IPS
Case	CoolerMaster 110 \| RoseWill ZIRCON
Audio Device(s)	Onboard
Power Supply	Rosewill 610WATT \| Rosewill 550WATT
Mouse	Input-Director\| RoseWill FUSION C40
Keyboard	Input-Director \| RoseWill FUSION
Software	Windows 10 Pro 64-Bit

Processor	Ryzen 9 5900X
Motherboard	MSI B450 Tomahawk ATX
Cooling	Cooler Master Hyper 212 Black Edition
Memory	VENGEANCE LPX 2 x 16GB DDR4-3600 C18 OCed 3800
Video Card(s)	XFX Speedster SWFT309 AMD Radeon RX 6700 XT CORE Gaming
Storage	970 EVO NVMe M.2 500 GB, 870 QVO 1 TB
Display(s)	Samsung 28” 4K monitor
Case	Phantek Eclipse P400S (PH-EC416PS)
Audio Device(s)	EVGA NU Audio
Power Supply	EVGA 850 BQ
Mouse	SteelSeries Rival 310
Keyboard	Logitech G G413 Silver
Software	Windows 10 Professional 64-bit v22H2

System Name	BoX-Server \| 775PC
Processor	I3 3.5GHZ (3150) \| Modded Xeon E5450 (OC @3.60)
Motherboard	ASRock B85M-ITX \| ASUS P5Q-EM
Cooling	OEZM HSK \| 92MM Heatsink RGB
Memory	8GB DDR3 \| 8GB DDR2
Video Card(s)	AMD 6450 \| AMD RX 550 4GB
Storage	120GB SSD 1TB WD \| 120GB SSD 1TB Seagate 500GB HDD <<
Display(s)	DELL 17" LCD 1280x1024 \| ASUS 24" LCD IPS
Case	CoolerMaster 110 \| RoseWill ZIRCON
Audio Device(s)	Onboard
Power Supply	Rosewill 610WATT \| Rosewill 550WATT
Mouse	Input-Director\| RoseWill FUSION C40
Keyboard	Input-Director \| RoseWill FUSION
Software	Windows 10 Pro 64-Bit

System Name	PCGOD
Processor	AMD FX 8350@ 5.0GHz
Motherboard	Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling	Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s)	NEC Multisync LCD 1700V (Display Port Adapter)
Case	AeroCool Xpredator Evil Blue Edition
Audio Device(s)	Creative Labs Sound Blaster ZxR
Power Supply	Seasonic 1250 XM2 Series (XP3)
Mouse	Roccat Kone XTD
Keyboard	Roccat Ryos MK Pro
Software	Windows 7 Pro 64

System Name	Black MC in Tokyo
Processor	Ryzen 5 5600
Motherboard	Asrock B450M-HDV
Cooling	Be Quiet! Pure Rock 2
Memory	2 x 16GB Kingston Fury 3400mhz
Video Card(s)	XFX 6950XT Speedster MERC 319
Storage	Kingston A400 240GB \| WD Black SN750 2TB \|WD Blue 1TB x 2 \| Toshiba P300 2TB \| Seagate Expansion 8TB
Display(s)	Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case	Fractal Design Define R4
Audio Device(s)	Line6 UX1 + some headphones, Nektar SE61 keyboard
Power Supply	Corsair RM850x v3
Mouse	Logitech G602
Keyboard	Cherry MX Board 1.0 TKL Brown
VR HMD	Acer Mixed Reality Headset
Software	Windows 10 Pro
Benchmark Scores	Rimworld 4K ready!

Does anybody know how to downgrade an AT&T Galaxy S7 from Nougat back to Marshmallow?

theFOoL

biffzinker

theFOoL

johnnic

New Member

eidairaman1

The Exiled Airman

Frick

Fishfaced Nincompoop