S4 with Fixed WIFI :) - Galaxy S 4 Q&A, Help & Troubleshooting

If people install Wanamlite 3.1 then flash modem with I9505XXUFNB9-WiFi-FIX(NON-HLOS).tar This working perfectly on my S4-GT9505.
Check your modem versions on here before flashing.

That's a fix for all the custom roms when you are on the old bootloader.

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[Q] Old Bootloader & Newest Stock TW ROMs

Hey Guys,
being on old bootloader i want to flash one of the prerooted stock roms provided here.
In the OP it says for installing the JB 4.3 roms on old bootloaders: "Other than wifi, the rom is fully working, (...) To get wifi fully working, dev needs 4.3 kernel sources, so please wait!".
So will i break WiFi because i can't use (as also said in the thread) the WiFi Fix on old bootloader?
I would like to flash the newest prerooted Stock Rom (XXUEMKE from 27.11.2013) via CWM.
i use a 4.3 costom rom with no wi fi problems if u had problems with your connection just flash a 4,3 modem and that should solve it.
G72-8X said:
i use a 4.3 costom rom with no wi fi problems if u had problems with your connection just flash a 4,3 modem and that should solve it.
Click to expand...
Click to collapse
The provided roms in the linked thread don't contain a modem. I'm currently on MJ5 with latest (newest) possible LTE modem for old bootloader. So I don't understand why it says in the thread that there can occur Wi-Fi problems..
h0rt3xus said:
The provided roms in the linked thread don't contain a modem. I'm currently on MJ5 with latest (newest) possible LTE modem for old bootloader. So I don't understand why it says in the thread that there can occur Wi-Fi problems..
Click to expand...
Click to collapse
that is because when 4.3 came at the begining they didnt have the kernal sources for 4.3 and that made lots of problems but now there are a lot of kernals for 4.3 like ktoones, Faux and talexop's kernal

[q] wifi stopped working!!

Help! So i flashed omega rom in my galaxy s4. Wifi is working with omega rom but after flashing imperium, wifi stopped working anymore. How to fix this? I have the latest bootloader and nc9 modem
try to flash a different kernel

flashing from lollipop to kitkat custom rom?

hi guys, i have flashed android 5.0 stock with odin to my n9005 and then got recovery mode on my phone TWRP and flashed a couple of android 5.0 roms.. now im wondering if im able to go to kitkat (x-note) rom without any problems... my phone bootloader modem n stufs etcs are in lollipop's now as i used odin to upgrade it last time.
Yes you can go back to kitkat just flash kitkat firmware with odin and that's all
Flashing a custom ROM should not touch your installed bootloader or modem.
Try flashing a custom ROM with your existing bootloader and modem. If it doesn't work properly, then consider changing the bootloader and modem.

work custom kk base rom on lollipop modem and bl?

Hello friends now my gti9505 have custom lollipop rom.UHOJ2 base modem and bl.one suggest me can I flash custom kk base rom?any problem after flash kk base modem bl over on lollipop modem and bl?
Yes it will probably work.
Be sure no problem about baseband and imei lost?
chashmaa said:
Be sure no problem about baseband and imei lost?
Click to expand...
Click to collapse
A custom rom never contains a modem or bootloader. So no that does not apply.
It mean no any problems after flashing?
Some custom ROMs require an up-to-date modem and bootloader. If you flash a custom ROM, the imei may disappear or wifi/calls may not work if the ROM is too new for the phone's bootloader and modem.
Before installing a custom ROM on a phone, I make sure that the phone is working properly with the latest stock ROM.
audit13 said:
Some custom ROMs require an up-to-date modem and bootloader. If you flash a custom ROM, the imei may disappear or wifi/calls may not work if the ROM is too new for the phone's bootloader and modem.
Before installing a custom ROM on a phone, I make sure that the phone is working properly with the latest stock ROM.
Click to expand...
Click to collapse
He means it the other way around. He wants to use a kitkat rom on a lollipop bootloader and modem. That's shouldn't be a problem.
I see the OP asking 2 questions:
1) Can a KK ROM be flashed to a phone running an LP bootloader and modem. Generally, I would say yes but whether all functions work will depend on the KK ROM. Some custom KK ROMs I ran on my Nexus 5 required me to downgrade the bootloader and radio to KK versions.
2) Can a KK modem and bootloader be flashed over an existing LP modem and bootloader? I think it depends on the phone's installed bootloader.
Yes audit13 brother my quistion is no1. I have now albe95 astra v2 on UHOJ2 base modem and bl lollipop. And goes to goldfinger kk base.now confused what can I do?
Did not try on i9505 but it works on i9500. I think it will work but u should backup your EFS partition
I say try the KK ROM on the LP bootloader and modem. If it doesn't work, you'll either have to find another ROM or you'll have to try and flash a KK bootloader and modem over a LP bootloader and modem.

[N910G][NOOB] Bootloader and Modem for build N910GDTU1COI1

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!

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