insane wifi dissapearence - Galaxy Grand Prime Q&A, Help & Troubleshooting

Like everyone else i used to flash new roms to my grand prime sm-g530h so i backed up my stock rom like everybody does .
First 3-5 times i restored my stock (after flashing bugged roms ) wifi was working fine .
And then suddenly after i restored it after one of the roms wifi and hotspot werent working at all , once i open wifi it turns itself off in 1sec , hotspot button turns on and stays on without working(cant turn off , the button gets whiter and stuck ) .
The strangest thing is all the roms based on stock ( j5 , v2 or neo rom ) which i tried had same wifi and hotspot bugs (and the rom says its stable and many people of same model tested them and wifi had no bug).
After losing hope i flashed my stock via odin and wifi and hotspot worked well , i backed up my stock via twrp again and flashed another rom like i always do .
I restored it one time and wifi woked well , the second time wifi had same problem ( i was shocked ).
I flashed miui rom then flashed stock via odin but it didnt boot ( shocked again)
I dont know what is happening and whats is the cause of all this and how a stored backup could have bug happens suddenly (btw i never faced wifi bug on a cm based rom).
Please tell me the reason and how to fix this bug because its really weird and happens from months .
(English isnt my first language so sorry for bad english)

Related

WIF/Network/Modem problems

Hello,
Update: apparently its not broken because I did a full wipe and installed Echoe again, left MJ9 on it, and it seems to be working, for now anyway. -MJ5 was recommended by the developer
U2: Wifi stops working again.
I am worried that my s4 might be broken since any modem I try I don't get a stable wifi or the phone crashes when using GPS on a data connection (sometimes it works, sometimes the network drops and sometimes the phone crashes).
I was using Echoe ROM on baseband mj5 for a couple of months with no problems but lately the wifi problems started showing up and after reboots the phone would ALWAYS crash once at lockscreen (right after booting) and then it would work fine on second or third reboot. I upgraded to newer echoe but the same, so I decided to go to an AOSP rom and switched to Liquidsmooth (latest on 4.3). And I was having even bigger problems with network and slow wifi (on echoe the wifi problem was intermitent, on this it's always slow) and I didn't use to have GPS+Data network=phne crashes. So I went on the thread with all the modems and tried a few. the site http://www.sammobile.com/firmwares/2/ tells me that for my S4 i9505 on three UK the latest is I9505XXUEMK9.
All the following I tested on liquidsmooth rom and by reflashing this rom before and or after new modem flash
So I tried both XXUEMK9 and 8 but both are really bad, wifi drops and phone crashes (tried WIFI fix), then I tried I9505XXUEMJ9 without/with wifi fix and it seemed stable for about 5 minutes... then it crashed. This was on new rom flash after flashing moded, just to make sure... and it still crashed.
I used odin to flash all the modems
I use Philz Touch latest 6.something (I was on 5.something at first but changed it just to be sure)
should I try a modem that is not UK specific, is there an international one? <-- although, Im assuming XX means international so this would answer my own question.
Any help or advice is appreciated.
I would still like to know of a good modem for UK Three phone with AOSP rom
thankyou

[S7710] Unable to fully restore ROM, minor android fault.

Hello, I flashed my S7710 ( skoomer, galaxy xcover 2 ) with CM 10.2. Everything was perfectly fine. Unfortunately, one night I had to have a fatal error during sleep as Android ( app ).
My phone was turning on and off during charging and while connected to pc. I solved it and flashed it once again. It was unstable and crashed few times so I flashed an original ( firmware ) ROM.
Unfortunately, I still got this screen (attached) after turning my phone on. ( just for 3-4 secs ) It disappeares and phone boots normally ( almost because I got small lags during booting, both sound and animation ), starting with samsung logo. Got similar f*ck-ups while getting to recovery but it's not permanent and overall I get to the destination point which is recovery menu.
I would like to know, what should I do with this. Can't find three files rom to this model. ( with pit to re parition it - don't know if it will help but still worth to try ) . I've done all wipes etc. I flashed everything with odin, except CM 10.2 witch had to be installed from recovery.
What's more, this gray-like screen changes a bit if there is another ROM. What I mean is that there are more colorful pixels in the background now that there were on CM 10.2 .
i had the exact same problem. The problem is solved by flashing via odin a stock rom with pitfile and csc file, too. Unfortunately for my device, althought i fixed that error, i lost the touchscreen response. Dont know if it's a software error or a hardware one. If you're still looking i could find it.

Rooted SM-G928F Bluetooth is not turning on

Ok before i start:
I've rooted my phone
Custom rom installed (PureStock Extralite) but it wasn't working before i installed it anyway.
Wasn't working before i rooted but now i am rooted maybe there is something i can do.
Things i've tried:
wiping all sorts of caches.
Factory reset from recovery
installing custom rom
installing stock firmware
So basically whats happening is i cant turn on my bluetooth at all, from non-root and rooted. If i try from settings the slider greys but never turns on. Well im not really at my last resort but i have been ****ing around with my root and stuff so im just holding on its something about that.
i have the same problem
i've tried many ways,even delete-rebilb efs or erase nand-all from odin
i ve come to conclusion that there is hardware problem and leave it that way(i dont realy need bt)
strage thing:i really like plaiing with my phone and test many roms on it so after try to instal bobcatrom rom(https://forum.xda-developers.com/s6...-bobcatromv-1-0-lollipop-5-1-1-t3250089)after many
officials and custom and about 8 months without bt, myphone stuck becouse ive forgot to anable OEM unlock in dev.option so i instal the first nougat for s6edge+ and after the boot i realize that BLUETOOTH ITS WORKING again
i test it ,it connects and working fine for aboute 1hour.then i turn it off(becouse i dont need it)and thats it:it never turns on again...the same problem as before...
evris said:
i have the same problem
i've tried many ways,even delete-rebilb efs or erase nand-all from odin
i ve come to conclusion that there is hardware problem and leave it that way(i dont realy need bt)
strage thing:i really like plaiing with my phone and test many roms on it so after try to instal bobcatrom rom(https://forum.xda-developers.com/s6...-bobcatromv-1-0-lollipop-5-1-1-t3250089)after many
officials and custom and about 8 months without bt, myphone stuck becouse ive forgot to anable OEM unlock in dev.option so i instal the first nougat for s6edge+ and after the boot i realize that BLUETOOTH ITS WORKING again
i test it ,it connects and working fine for aboute 1hour.then i turn it off(becouse i dont need it)and thats it:it never turns on again...the same problem as before...
Click to expand...
Click to collapse
yeah. i took out my sim card and rebooted and it started working again. Put back in and it stopped. Repeated but it stayed off

Umidigi S2- Can't turn on WIFI or bluetooth

Hi ! (Sorry for my bad englisch, i'm from Belgium)
I have an umidigi S2 for a week now. The first day everything was perfect and works great!
The second day my wifi was very unstable and i had to turn it back on all the time.
The third day I can't turn on my wifi it all (the same for bluetooth). (see video)
info:
Umidigi S2
Android 6.0.1
TWRP
root
Things I've tried so far from other threads:
- flash stock rom again ( stock umi, upgrades/downgrades ... )
- Tried setting up tethering
- Wipe dalvik cache
- Full wipe
- Factory Reset
- root
1 more important thing!!
I tried the 'FXR wifi fix and rescue' and the first 10 times it stucks on 'reading profiles'
but one time(!!) the fix was comple and my wifi turnt on !! and i had connection with the wifi at home. But then the phones reboots and the same problem was there again and the apps stucks again on 'reading profiles' .. I don't know if it dit somthing special that one time, i tried a lot of difrent things.. ( with or without sim, 3g, ... )
Hope somebody could help! Of its not clear you can tell me and i try to explain it better!
Thanks
and happy hollidays

Wifi not turning on (i9505 - Stock rom)

Hi. After trying a couple of custom roms, I wanted to go back to a stock rom via Odin. I actually succeeded. The phone boots, and android setup screen comes. But in the "wifi connection" screen, when I touch the button to turn the wifi on, it just refuses to turn on. It goes back to off position. I have tried several different country's stock roms (4.4.2 only, I haven't tried 5.0) and they all ended up the same. I just can not turn wifi on in stock rom. Wifi works in custom roms that I installed using TWRP.
Any idea why this happens?
By the way, I also tried flashing different modems, but the result is the same. I read that turning off the phone and removing the battery helps, however, in my case, it didn't.
Any help is greatly appreciated.
EDIT: As I have looked into the issue, some people claim that a custom kernel usually solves wifi problems. I haven't tried it yet but I will as soon as I can get my hands on the phone. Also in another post, I have seen a build.prop tweak "ro.securestorage.support=false" which is claimed to have solved the wifi issues. I am writing these to be of help to others that might encounter the same problem. I will update the post after trying these ideas.
EDIT 2: It turns out, when you flash a stock rom, Odin can't actually flash the modem partition. It seems like it does but it actually fails. You have to do it twice.
No Wifi
Hi,
have some trouble with my Galaxy S4 (GT-I9505). Since 2 weeks I'm trying to get wifi working. 2 weeks ago I decided to root the phone (everything complete stock Android 5.0.1). At this moment wifi was working well..
I did:
- Flash TWRP with Odin
- Flash magisk 18.1
--> booted phone..
Everything seemed to work well..expect wifi. It wouldn't turn on. When trying to activate the WiFi button by sliding to the right it stays grey and after 10 sec. the slider goes to the right side again.
What I've done:
Downloaded several stock firmwares from sammobile --> no wifi
Flashed serveral custome rom's (lineage 14.1, 15.1), android 5.0 and 4.4 based --> no wifi
Tried differnt kernels --> no wifi
Flashed different bootloaders and modems--> no wifi.
Tried to delete files in /wifi folder suggested here in forum --> no wifi
Tried to modify buil.prob set the security value to false suggested here in forum --> no wifi
I don't think thats a damage on the hardware. It must be a software issue?
Bluetooth and mobile data are working well. GPS and wifi seem to be broken.
After spedning weeks of flashinng, recovering etc.. I am frustrated and don't know what to do.
Any advices?
My wifi is not being enabled with this rom. Does anyone know how to solve?

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