I have N900X which has N9005DXUENE4 firmware installed (rooted + CWM). The problem is after KK update my phone loses network from time to time, and signal strength is weak compared to when it all worked fine on JB. Since there's no way to downgrade to JB, I was wondering what custom roms or other modem versions do you recommend that could possibly solve this issue?
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Yesterday I've tried to switch ROMs from Cyanogenmod nightly (camera was crashing) to AOSP 4.4.2. AOSP ROM had some problem with CWM 6.0.4.7 (Status 7 error) and when I reverted to Cyanogenmod I had no gsm service. Flashing modem from newest samsung firmware available resulted in working GSM, but I've lost all sound!.
Then I've found out that for older bootloaders I should flash other modem file and I've managed to get sound to work. Now I'm back on Cyanogenmod 11 Nightly and suprisingly, camera works! I suspect that newer modem file I've flashed with Odin fixed camera/cyanogenmod problems.
My first question is:
Should I try to find newest knox-free bootloader and update to it? Is it possible that new ROMs will be working better with newer bootloader?
If so, can you point me to the latest knox-free bootloader?
Second question:
My is taken from firmware for "Open Europe". Since I live in Poland, will I benefit in any way from switching to XEO modem (firmware for Poland)?
How to upgrade just the bootloader of a phone?
There is no official 3.4 kernel for RAZR M XT905 (Australian), so i tried to flash fxz of XT907 (.15 version)
I flashed all the files except system,modem and partition. Then I installed KKBL TWRP and it did worked. But it was not letting me install the new KKBL ROMS due to different value return in ro.secure.hardware, so I had to remove this line from updater-script.
The new rom installed and booted, but what showing System UI has stopped working constantly, this was solved by updating the modem as well. But the XT907 modem doesnot supports XT905 properly (very low signal strength, no network registration).
I hit the wall there, anyone else knows the proper way to achieve this? Can we mod the modem or firmware? Or can the Lollipop firmware be compiled for old kernel.? Are sbl1,sbl2,sbl3 only necessary bootloader files. What is the function of other files.
P.S Now BlissPop i sshowing Setup Wizard has stopped working. Any way out?
Well i just installed BlissPop nightly for JBBL and it is working
Yes, the bootloader has to be compatible with the modem and that's why you won't be able to use a JB modem with a KK bootloader in most cases.
But the KitKat rollout for the Aussie XT925 (Razr HD) has just started this week (it's 180.46.127) and since both phones' software is very similar, I guess KitKat for XT905 is just around the corner.
I have an s4 GT9505 with stock kitkat 4.4.2 BTU rooted.
i have an issue with the vpn working for a short while 1-2min then timing out and nothing loading. im using vpn root.
i have found that it appears to be a common issue in 4.4.2
is there a fix for this?
or do i need to flash to lollipop 5.0.1
if i flash to lollipop do i need to upgrade modem and boot loader? (seen it in one of the roms posts)
im happy enough with the stock rom can i root lollipop?
or is there a good rom without too many issues? it was too hard to workout a rom so went stock last time. and on my older phone the custom roms always had issues with something.
any links on what i have to do as a refresher to flash/ root etc?
I have a note 3 sm-n900L with lolliop 5.0. After endless tries I have not been able to fix my GPS which loses connection to satellite as soon as it establishes one and navigation is not possible. I have heard that this may be a software problem and I have heard that it started with lollipop for many. I want to install a kitkat rom through twrp 2.8.6 while keeping the lollipop bootloader so that I can my lollipop rom backup easily. Is there any rom that works for sm-n900L. Please help.
Hi,
I'm currently having a problem with m N910G Note 4. The baseband version is Unknown. This happened after flashing Norma N7 V12 and different bootloaders and modems for Marshmallow (can't find the G1 BL recommended for the ROM). I had a backup for my Lollipop rooted stock ROM, except data. It has Modem and EFS backed up as well so I restored all.
However, I'm stuck with my phone freezing and rebooting (mainly due to baseband issue). I tried loading different bootloaders and modems available for N910G Lollipop but to no avail.
If anyone knows where I can get the COI1 BL and CP, that'd be great so I can still use my backed up ROM. Else, I might have to stick with upgrading to Marshmallow (since that's the only available free firmware on Sammobile). I'm avoiding upgrading the firmware though due to eMMC issues that mostly occured on Marshmallow.
Thanks,
Vin
Flashed RR 6.0.0 Android 8.1. ROM recognizes the bootloader and modem so no more rebooting. I guess the TouchWiz ROM has to match with the bootloader and modem; else it'd keep on rebooting. I'd have to find the bootloader and modem for Norma N7 though, so I hope someone could still reply here. Thanks a lot XDA peeps!