1 : when flashing a new rom, do i have to reflash cfroot and then twrp all over and then only flash the designated rom? Im currently on xtreolite
2: how do i check what modem/bootloader/etc version am i on?
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Hello,
If this is not the right place for this please fell free to move it.
Now that more unofficial roms like Cyanogenmod are getting closer to a stable/bug free release I am wondering about a few things.
According to Cyanogenmod's install guide a OLDER Kernel and Bootloader must be flashed in order to get recovery installed and Cyanogenmod running, one would also assume that most other custom roms would require this as well.
3. Flash the aboot.mbn file from VRALEC.bootloader.tar.md5 with Heimdall:
heimdall flash --ABOOT aboot.mbn
4. Flash the older kernel from VRALF2.boot.tar.md5 with Heimdall:
heimdall flash --boot boot.img
5. You should now be able to download and flash recovery:
koush's ClockworkMod Recovery: download
md5sum:3b13219e967fc622c035540107ee5553
heimdall flash --recovery your_recovery_image.img
6. Flash bootloader zipfile via recovery:
Flash the VRALE6.bootloader.zip in recovery
Install zip from sdcard
Choose VRALE6.bootloader.zip
Confirm installation
Reboot
Click to expand...
Click to collapse
Using this tutorial by invisiblek I obtained Root and Clockworkmod recovery some time ago and have not updated or touched the FW since. I even disabled OTA updates to avoid loosing my root.
In About Device I have:
Android Version 4.0.4
Baseband Version I535VRLF2
Kernel Version 3.0.8
Build number is I535VRALF2
CWM recovery version: 6.0.1.2
Would using the above methods to flash a new bootloader and kernel even be necessary on my phone to get Cyanogenmod running? Besides flashing the phone originally I have done nothing to change or update this stock rom.
The reason I ask is I would rather avoid any potentially phone bricking steps for installation of custom roms if they are unnecessary.
Thanks for the help in advance.
You can easily update your CWM version and bootchain (unlocked), which makes flashing custom kernels and ROMs possible, by via Odin. If that's what you wanted to know? Haha.
Well I was more wondering if I needed to even bother flashing my kernel/bootloader in order to get custom roms to run?
nuke235 said:
Well I was more wondering if I needed to even bother flashing my kernel/bootloader in order to get custom roms to run?
Click to expand...
Click to collapse
In order to load a custom ROM you'll need to be rooted, have an unlocked boot loader, and a custom recovery such as CWM or TWRP installed.
Most custom ROMS are based on a certain firmware. For instance Scott's ROM is based off of the I535VRBMB1 firmware but works with some older firmwares, however, it will not work with the newest firmware I535VRBMF1 (camera doesn't work).
Check this thread for newer firmwares (flashable through recovery) if you want to update yours!
Hi
I want to flash the icysnap Rom and I understand that I need to flash a new baseband (I am running the stock 2.2.1 that came with the phone) my question is do I need to flash the baseband before of after I flash the rom???
And another question is when I connect my phone to the pc when I upgrade the baseband does it need to be on or off??
Thanks in advance!!!!
its more safer to install the new baseband v20 before you flash the rom thats what i did works perfect
thekidelvis said:
its more safer to install the new baseband v20 before you flash the rom thats what i did works perfect
Click to expand...
Click to collapse
Ok great
Thanks man.
If you flash stock GB ROM using KDZ, then your baseband will be updated automatically. Here's how to do it: http://forum.xda-developers.com/showthread.php?t=875881.
Else, you can search for updating the baseband via LGMDP. There's no harm doing it before or after flashing a ROM supporting new baseband.
Hey guys, just a quick question, must we always flash the firmware zip file first in bootloader before flashing a custom rom?
I ask this because I had already flashed the latest firmware (3.33.401.6) ages ago, I've been using albinoman887's CM 10.2 rom and Carbon Rom without any problems (well actually, I do have battery issues and 2 small minor issues). But today, I decided to check my firmware version using fastboot command
fastboot getvar version-main
Click to expand...
Click to collapse
and I got something like 1.24.401.1.
Well, that's obviously wrong, so I flashed the firmware again and this time it shows the proper version.
So I was just wondering, does doing a full wipe or flashing a new rom affect the firmware at all? Must we flash it everytime prior to flashing a new rom? I don't understand how my firmware was changed even though all I've been doing is switching between JB custom roms.
doesn't affect the firmware at all
i don't know why it showed you that firmware version
flashing any custom rom doesn't affect firmware
there is no need to change it every time you are flashing a new rom
now leave it as it is
Hello everyone
I tried to flash the Batman 1.5.0 rom and the Lineage 14 rom in my s7 G930F but i only can get a valid imei when i use a stock rom.
I used the batman rom for like 2 months and everything worked fine but now i cant use a costum rom anymore!
Does anyone knows how to fix this issue? Ty a lot
Cant flash to older versions. Grab the latest stock and flash yo get it back.
Wait for custom to be updated with even newer base then flash it
Saggy2121 said:
Cant flash to older versions. Grab the latest stock and flash yo get it back.
Wait for custom to be updated with even newer base then flash it
Click to expand...
Click to collapse
Ok i'll try it ty
Did it work?
Simple
Fixed!!!!
FIRST!!
1. FLASH BL AND CP from the stock firmaware!!
2. go to recovery and flash BATMAN ROM or another costum rom
3. When you install Batman rom just choose : KEEP CURENT MODEM AND BOOTLOADER!!! If you update that 2, the imei and the signal from the phone not working anymore.!!!
4. Just be sure again, flash BL and CP first from the stock rom! And keep the bootloader and modem don,t update from another rom!!!
Saggy2121 said:
Did it work?
Click to expand...
Click to collapse
I'll try it
alexyn19 said:
Fixed!!!!
FIRST!!
1. FLASH BL AND CP from the stock firmaware!!
2. go to recovery and flash BATMAN ROM or another costum rom
3. When you install Batman rom just choose : KEEP CURENT MODEM AND BOOTLOADER!!! If you update that 2, the imei and the signal from the phone not working anymore.!!!
4. Just be sure again, flash BL and CP first from the stock rom! And keep the bootloader and modem don,t update from another rom!!!
Click to expand...
Click to collapse
Thank you a lot i'll try it
ALWAYS backup your EFS folder, no matter what phone u have., and then save it on ur PC.
https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
This link solves most ppl with IMEI problems.
Hi everybody, I have a SM-G920F with android 7.0 rooted with magisk and TWRP, but with stock ROM.
I'm planning to give NexusOS 9.0 a try and do :
Backup my data and settings with TitaniumBackup
Backup everything in TWRP
Flash ROM,magisk,Gapps according to NexusOS's thread
If I want to go back to Stock, what do I have to do ? As of now, I would think of :
download my latest firmware on https://www.sammobile.com/firmwares/galaxy-s6/SM-G920F/
Flash it through Odin by selecting the firmware in "AP"
But do I need to do anything else before/after flashing stock ROM, like wiping something ?