i have tried to flash stock firmware but it failed. please help.
what version was it on before you tried to flash? 6.0.1 or 7.1.1. depending on the version you can only flash stock firmware U1 to U1 / U2 to U2 / U3 to U3 its a binary and ATT wont let you downgrade even with combination file.
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I have the J3 model J320AUCU2AQC1 (ATT) on 6.0.1 and I flashed ENG Boot to root and I tried clean wiping to get rid of the Engineering Bootloader but it is still there and I need the firmware and the bootloader for it on version 6.0.1.
Had A310F with custom ROM, then went back to stock marshmallow.
Now wanted to go for latest Nougat with the marshmallow rooted and twrp on.
Samfirm only gives my one oart firmware which does not fir in ap slot on odin 3.12.
using 4 part nougat carrier specific not free one it fials on flashing.
What is the way now to get a stock android 7.0 device here with which firmware please?
does flash fail due to downgrade?
think i deleted something in marshmallow rom to make bootloader security somewhat fit to downgrade
Try to download the firmware from sammobile.com i think you can't downgrade just download another stock firmwaee for the a310f (your device) and try to reflash via odin
I was on G935FXXU2DRAG and tried G935FXXS3ERHD.
Now I can't go back to G935FXXU2DRAG.
I tried full TWRP backup restore, BL flash via Odin and stock firmware flash in Odin.
I can't go back to U2?
How can I force flash U2 bootloader via Odin or TWRP?
Edit:
I found a solution, see: Original post
Dear All my Brothers i have issue about to Downgrade my Samsung S7 Edge to Andriod 6.0.1.
i try and search alot in Youtube and forum but i have these types of issue when doing Flash
1. when i try to flash from ODin 3.12.3 then it give me Fail AUTH Error
2. when i try to Downgrade from ODIN 3.12.12 it give me Fail Model Dismatch
i have already flash the S7 through Combination file of COMBINATION_FA60_G935AUCU7ARG1_CL11071963_QB18982740_REV02_user_mid_noship_MULTI_CERT.tar
but after Combination when i try to upload Firmware file it give me above 2 errors?
on Screen showing FRP Lock N
Samsung SM-G935A S7 Edge
before combination file my Phone Model was showing in Downlaod mode is SM-G935V
now i dont know what to do how to recover my phone from Factory Binary
I believe the newer firmwares don't allow you to downgrade past a certain version.
Cloud.Envy said:
I believe the newer firmwares don't allow you to downgrade past a certain version.
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yeah may be but now i want to recover my phone back so it not allow me to upload android 8.0 ? which firmware should i upload again to normal the phone
masu222 said:
yeah may be but now i want to recover my phone back so it not allow me to upload android 8.0 ? which firmware should i upload again to normal the phone
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Click to collapse
You should try the the stock firmware 8.0(Sammobile) and use a diiferent odin version. I had multiple failed flashes from Nougat to Oreo, until I realized older odin versions cannot flash the new Android Oreo firmwares with compressed binaries (lz4). I used a patched odin (3.13.1) and it worked flawlesss.
I've just installed the newest firmware for my J730F with the latest U5 bootloader.
The issue i'm having with it is that any custom ROM i install the SIM card is not being recognized.
Apparently Samsung has made bootloader downgrading impossible so i'm stuck with the stock ROM if i wanna have a working SIM.
Any solutions to this?
I also did the mistake and updated to the latest firmware now i am stuck. Tried to downgrade but ended up being failed. Can anyone help please?