Samsung A5 2017 (A520F) unknown baseband - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hi!
I installed the latest lineageos 14.1 nightly from July 11th 2018 on my phone and have now set the baseband to unknown and a missing IMEI number.
before installing i let the phone update to the latest samsungs ota update. i did not backup anything before installing lineageos.
i tried reverting to the nightly of july 4th without success. i tried to delete the modem files as described in another forum post. i tried to back up the efs folder, delete it and restore to no success.
downloading the stock rom from sammobile just returned the error "invalid user"
i am close to giving up. anyone having any hints?

Related

[Q] 5.0 Update Failure

Hey guys, so I used SuperSU to unroot (which may not have been necessary) and then used Odin to flash back to a stock ROM of 4.4.4. I keep trying to download and install the Lollipop update OTA, and although the download is successful, when I install the update it boots and starts to upgrade before displaying "Error!" and the Android on its back with the front flap open - it then restarts and the system tells me that the update failed.
I could really use some help with this issue, as I've flashed back to stock several times and the update just continues to fail. I'll include the information from the About section of my device. I did verify that there is no root as well, so could it be that I have the wrong stock ROM flashed? Any help would be great. Thanks!
Baseband Version: G900VVRU1ANK7
Kernal Version: 3.4.0, [email protected] #1, Mon Mar 31 13:30:24 KST 2014
Build Number: KTU84P.G900VVRU1ANK7
SE for Android Status: Enforcing, SEPF_SM-G099V_4.4.2_0011, Mon Mar 31 13:30:07 2014
Hardware Version: G900V.05
Security Software Version: MDF v1.0 Release 3, VPN v1.4 Release 2
Same issue here.
I too have this problem; however, I was a fool and simply attempted to update without unrooting or flashing first -- though I was coming from a stock ROM.
Have you tried a full wipe / factory reset? I'm hoping that will fix this...
I was able to get the first update to install however the second one fails everytime. Any idea's?
Same issue here. First update went through no problem, second update downloads, starts to update and fails after 15 seconds or so, reboots and gives the update failed message with a 402 error.
I did try a factory reset and full wipe and still the same issue.
The previous update a few months ago (I can't remember when exactly) I had the same issue and a factory reset worked then to get the update through.
I had this problem when trying to update from NI2 to NK2, although my solution for that was flashing a rooted NK2 rom. For this one you can either a. reroot and flash a rooted version via Safestrap and then Odin the OA8 firmware or b. flash a full stock NK2 tar through Odin and then take the OTA from that. Both of these methods don't require factory wipe (I think) so you shouldn't lose any data.

Blank IMEI and unknown Baseband Version after installing cyanogen[unofficial] HELP!!!

I recently installed cyanogen 13 on my moto g4 plus. It was an unofficial version.After installing the sim card doesn't work. The reason being blank IMEI and unknown baseband version. I have no previous backups of os and the EFS folder. What should I do??will flashing a stock rom solve my problem???

Problems after flashing with Odin

Hi,
I have a G935F of the S7 Edge from German T-Mobile which I have debranded using the latest Android 6.01 DBT-Version from SAMMobile and then updated to Android 7 in March (G935FXXU1DQB3).
Somehow I didn't receive and online updates so I have tried to flash the latest version with the latest updates which is G935FXXU1DQEF.
Strangely after flashing the update I was notified that there was an additional update available that I should install which downgraded automatically to the initial version G935FXXU1DQB3 again.
The only thing I was unsure was the CSC part of the firmware.
When I flashed the HOME_CSC_DBT file I got a query for a password at startup of the phone (I didn't configured it for a password before). Then flashing the CSC_DBT file the phone booted up normally.
Can someone explain how to get the latest update of Android 7 on my phone?
Cheers,
TheDemon

SM-T580 Unable to flash MM version OS after 7.0 OTA update

Hi there,
My tablet got updated to 7.0 Nougat here the other day. Now a few functions I needed in 6.0.1 is no longer working in Nougat.
So I of course I downloaded stock rom, odin, and added the files to their corresponding selections, and as I hit Start, it reads the file, and as it goes on to flash system or data, it just fails right out of the blue. This is early start even before its flashed anything it seems.
The error code showing on the tablet is: "system rev. check fail device:1 Binary:0"
FRP lock is OFF aswell. Tried flashing it over a custom ROM aswell, but same error persists. It actually started asking for PIT file all of sudden. But even with that handled, it still gave fail on same place. Tried 3 different OS versions of 6.0.1 for my tablet.
Any idea how to bypass this version check? It's like the tablet has added some data into its motherboard saying its on 7.0 and nothing below is allowed except custom. Is there any way to flash the downloaded stock ROM to be flashed in Odin, in TWRP?
Also just using a custom ROM isnt an option due to safetynet is a part of some of the functions I require.
EDIT:
Just after typing this, I managed to use V5 of Ultra Lean ROM for T580, did full unroot of SuperSU after a full boot, and said yes to attempt Stock Boot Image, and No on Stock Recovery. Now safetynet gave validated status

Galaxy A3 2016 (sm-a310f) downgrade fail with twrp.

I want to downgrade my phone from android 7.0 to 6.01. The performance of the new OS is so bad that the phone is almost unusable!
Odin will not let me downgrade because the bootloader/modem etc is an older version.
I installed TWRP with the instructions from this thread https://forum.xda-developers.com/samsung-a-series/general/twrp-3-0-0-galaxy-a3-2016-sm-a310-t3316176
However when I try to install the 6.0.1 rom I downloaded from sammobile I get an "no md5 file found" error from twrp.
I thought that twrp is so versatile that it allows any rom to be installed.
Any ideas? Am I doing something wrong?
If you downloaded a ROM from sammobile or samfirmware they can only be flashed via Odin.

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