Help, bricked my Sprint Samsung ativ neo - Windows Phone 8 Q&A, Help & Troubleshooting

I Upgraded my sph-i800 to win10 10526, then I downgrad to 8.0 ,bricked. Cannot turn into download mode. I am crying!

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[Q] ATIV S (SGH-T899M) stil on old firmware, how to upgrade?

Hi,
I did have PfD so my operating system is on 8.10.14192.280. Since then, Samsung released their own OS and new firmware. My phone somehow didn't get this upgrade. I'm still on 2212.13.11.2 firmware. Searching suggests for i8750 users to downgrade to GDR2 and let update do the rest. But I have an T899M, of which people say not to flash i8750 roms. Now, how do I get the new firmware (2424.etc) ?
Regards,

[Q] Samsung GT-I8750 Ativ s Not for resale...

I got old SAMSUNG ativ s phone. There is some engineering rom. When I start phone, exist text "not for resale" I can,t update it to WP 8.1.
There is now version: 8.0.9900.568, device version: 2424.12.09.9. Operator: Open market device (Europe).
I tried to upgrade with some Guide from Internet, but It say,s someting from UEFI version.
Do not try to install 8.1
You will brick the phone (as I did)
If possible I would like to get a hold on the ROM you have so I can maybe revive my bricked ATIV S

SM-G900A rootable ?

Hello ,
i bought samsung galaxy s5 at&t model a few days ago and i want to root it and flash new cm13 , boot i cant find anywhere how it can be rooted. its on 5.1.1 firmware. i was thinking , is it possible to downgrade kernel with odin and then root with towelroot ? i am just afraid of bricking my phone.
No, it's not possible to root this phone on Kitkat.

Samsung s5 mini g800h dual sim 6.0.1 TWRP and Root?

https://forum.xda-developers.com/galaxy-s5-mini/orig-development/recovery-qualcomm-twrp-2-8-7-0-t3245256
That going to work? i got android 6.0.1
Says that it will work. it will trip Knox and you can always reflash the old ROM if anything goes wrong. *just make sure your phone is Qualcomm Snapdragon variant.
I also have Samsung s5 mini g800h dual sim 6.0.1 , how to install TWRP and Root?
and to find what cpu had my phone?

sams galaxy tab active 2 sw downgrade

just updated my sm-t to latest android 9 T397UUES5CSL2
just to test it
now cant downgrade back to android 8
odin says wrong bootloader version
anyone have ideas how to go back to android 8?
or have any idea is it possible to install sw from sm-t395 into 397u?
thanks

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