Database Develop

Wifi problem

Hi dear xpda users. Please help me... I have a problem with my wifi so.. When i use the wifi (browse,facebook,download) the connection is aborting for 2-3 sec and after coming back. This problem comes after i install the new Xxjvu 2.3.6 frimware with 512 pit and semaphore kernel. Please help my problem and sorry for my english.
Sent from my GT-I9000 using XDA

It's maybe your box who is joking but if it's your phone make a wipe datas (dalvik & cache partition) and post the results

i had similar prob a few weeks back as in ....my phone would connect to wifi then disconnect.....i unplugged my router for 30 secs, everything was fine after that.
hope this helps you mate

My friend have this problem too.... so... idk... i'll installed this rom to 2 sgs!

as Dustman317 partner says, make the necessary wipes, and if problems persist even so, I would prove that the router issued for a fixed channel, for example, channel 11, and deactivate the automatic that comes standard on routers. This is a fairly common problem when there are many wireless networks around, it creates interference.

If wiping doesn't work, try installing a eclair rom and then the jvu. In the 9000b variant does the same thing since jvs/jvr.

I strongly suspect it is a WiFI router issue. please change the channel to 2 or 8 which in not very popular. start with open network and then move to WEP and stronger based on your results.

[Q] [PROBLEM] 4X does not connect to WiFi under WEP

Hi. Not sure if this is the right place to post but as I am using this ROM, Cannot post in the corresponding ROM forum - not enough privileges.
I would like ask for your help. I have an LG-P880 running Android 4.4.2 with LiquidSmooth LS-KK-v3.0-2014-02-12, Kernel: 3.1.10-CM+(2014-102-12). After flashing the ROM, the phone does not connect to WiFi with WEP. I choose the WiFi connection, enter the key (yes, the key is correct, tried few times), the phone tries to connect but then only says "Saved, secured with WEP" and never "connected". I searched through many forums for a solution. Seems like many models have a similar problem but couldn't find the descriptio for my phone or for this ROM. Most of solutions are as follows:
Wrong key (not my case)
Nulled IMEI - insert new value (not my case)
Change device name in WiFi direct - for HTC One (not my case)
Set correct time, date and zone as it may affect WiFi (all correct)
Some Kernel drivers don't support old WEP protection (could be the case)
I installed WiFi Fixer app. In debug mode it says the following:
Connecting to:"<provider name>"
Supplicant State: ASSOCIATING
Supplicant State: DISCONNECTED
and it goes on like this over and over.
Please note that it connects fine to other networks protected with WPA and WPA2. Some advise to reprogram the router - impossible in my case as it is the company's office and I don't have access to the router/server.
Yes, I wiped cache, dalvik and did factory reset couple of times - the problem remains.
I really like this ROM and don't want to move another, so please advise.
Has anyone experienced this on 4X? Any advice? If it's the problem with the kernel, which drivers would you recommend me to upgrade to?

Its already been stated that support for wep has been dropped for a while due to security. Only other way is to change the security type or go with an old version of android
Sent from my LG-P880 using xda app-developers app

or grab werewolf kernel, it (still) has support for wep afaik, just make sure to find anykernel installer

Thank you, guys. I was almost sure it's because of kernel. guess I just needed some one to confirm it to me.

wi fi
trying to change the encryption on the router

Wifi woes with the Z3 Compact

Hello all,
Just having an issue with my Z3 compact. The wifi keeps connecting and disconnecting every few seconds. This is a new development and it has never done this in the two years I've owned it. It finds the networks, connects and then promptly disconnects after a few seconds and then starts to look for networks once again.
Here are a few things I've already tried....
I have tested the same WiFi network with my S7 and laptop and they are stable on this network.
I have tried a different WiFi network with the same results
I have downgraded to a previous TWRP backup of my ROM when the phone was still stable.
I have changed the ROM completely with a factory reset and new custom ROM flash
None of the above has worked so far so not sure what has happened and if this is a possible hardware failure of the modem? Is there a modem file that could possibly be flashed?
Thanks for the help.

zimcommando said:
Hello all,
I have tested the same WiFi network with my S7 and laptop and they are stable on this network.
I have tried a different WiFi network with the same results
I have downgraded to a previous TWRP backup of my ROM when the phone was still stable.
I have changed the ROM completely with a factory reset and new custom ROM flash
Thanks for the help.
Click to expand...
Click to collapse
This has been mentioned several times in the Q&A thread, and @toxic-hero even posted a fix

Thanks Didgesteve,
I have tried the Legacy DHCP Client fix in the developer settings and I've also done a "Network settings reset" under Settings > Backup & reset before rebooting and still no help. The issue persists and I'm at a loss as to what the hell has happened here....

Same problem... I still have guarantee, so I flashed back the original up-to-date firmware and the phone was sent back to the local sony service, and I'm waiting for it.

WIFI stucks on "Obtaining IP-Address" after Flashing

Hi.
I've used my Mi5 for two month with the Global Dev Rom, no Problems.
Then I wanted to try Lineage OS, unlocking and flashing was fine but when I wanted to connect with my Wifi, the Phone can't obtain an IP-Address.
Meanwhile I've tried everything obvious: Restart the Router, try to connect with other Routers and WIFIs, Flashing other Roms (Lineage, miui.eu, cyanogenmod, china stable, china dev, global stable, global dev), others Kernels - everything works but the WIFI
Has someone an Idea whats wrong with my Phone?
Thanks for Help!

i dunno if this will helps.
Go to etc/firmware/wlan/qca_cld/ and rename wlan_mac.bin to wlan_mac.bin_bak.bak
Hope it helps!

Have you tried connecting to some other wifi ?

Same issue. My wifi only works on official MIUI and on .eu (haven't tried any other MIUI roms). However, on Havoc, Pixel, LineageOS.... nothing. Its able to find the networks and attempt to connect but theres an authentication errror (password is well written tho) and it can never connect. Just like you, I have tried using different wifis (even without password), reset router, change wifi channel, 2.4/5ghz, different firmware for the phone... nothing seems to work.
Any idea?
PS: the antenna and the charging port flex on the device has been replaced because it didnt have good cellphone reception, so it might not be the original from xiaomi. Im not sure if this might be causing the problem.
Thanks for your help!

Cant Turned on WIFI/BT, Already Flashed for BT still not working

Hi , its been a year since i bought xiaomi mi 9-global rom(128GB) and all work properly.
if im not mistaken the first rom when i bought is MIUI 10 , then the last time i update if im not mistaken is around september in MIUI 12.02 for the latest security patch.
Suddenly problem occurs recently maybe around a week. where my Wifi & Bluetooth disconnected by the system and cant be turned on but it fixed it self as i restart and now its never fixed.
I already some of fixed below :
- Restart devices
- Wipe all data
- Factory reset
- Try to flash the ROM from official one MIUI 12.02
- Following some tutorials that reset bluetooth and wifi settings
- Try downgrading MIUI version to 11
but still didnt work the Wifi & Bluetooth setting always crash & cant be turned on , try CIE or CIU test found out that the proximity sensor also didn't work.
I also tried some tutorials that do in EDL mode to install persist mode but its not working due to the Authentication it says" i dont have the permission"
Is there anyway i can fixed the Bluetooth & Wifi in this device?? The Mobile Data is still working and other features still working except Proximity Sensor, WIFI, Bluetooth.
Is the only way is to let the xiaomi store fixed it?? this is my only phone so i need it alot and the office store probably going to take long since pandemic.
Please help me Xiaomi Pro's out there :crying:
Edit :
- my xiaomi account already match with the phone the proof is i can unlocked OEM using the xiaomi. But it seems i still dont have permissions to flash EDL.

ohookayy said:
Hi , its been a year since i bought xiaomi mi 9-global rom(128GB) and all work properly.
if im not mistaken the first rom when i bought is MIUI 10 , then the last time i update if im not mistaken is around september in MIUI 12.02 for the latest security patch.
Suddenly problem occurs recently maybe around a week. where my Wifi & Bluetooth disconnected by the system and cant be turned on but it fixed it self as i restart and now its never fixed.
I already some of fixed below :
- Restart devices
- Wipe all data
- Factory reset
- Try to flash the ROM from official one MIUI 12.02
- Following some tutorials that reset bluetooth and wifi settings
- Try downgrading MIUI version to 11
but still didnt work the Wifi & Bluetooth setting always crash & cant be turned on , try CIE or CIU test found out that the proximity sensor also didn't work.
I also tried some tutorials that do in EDL mode to install persist mode but its not working due to the Authentication it says" i dont have the permission"
Is there anyway i can fixed the Bluetooth & Wifi in this device?? The Mobile Data is still working and other features still working except Proximity Sensor, WIFI, Bluetooth.
Is the only way is to let the xiaomi store fixed it?? this is my only phone so i need it alot and the office store probably going to take long since pandemic.
Please help me Xiaomi Pro's out there :crying:
Edit :
- my xiaomi account already match with the phone the proof is i can unlocked OEM using the xiaomi. But it seems i still dont have permissions to flash EDL.
Click to expand...
Click to collapse
I would try to follow flashing method from xiaomi.eu
https://xiaomi.eu/community/threads/miui-12-0-stable-release.56191/

Laptapper said:
I would try to follow flashing method from xiaomi.eu
Click to expand...
Click to collapse
Im a new user so i cant post link above
Click to expand...
Click to collapse
thanks for the answers , is it save to flash using EU ROM? last time when i browsing for fix tutorials i read some forum here about redmi user if im not mistaken that get the phone locked for 30 days after using custom ROM when he tried to revert it back. do you think its save ? mine is global version

ohookayy said:
thanks for the answers , is it save to flash using EU ROM? last time when i browsing for fix tutorials i read some forum here about redmi user if im not mistaken that get the phone locked for 30 days after using custom ROM when he tried to revert it back. do you think its save ? mine is global version
Click to expand...
Click to collapse
I think it's safe as miui could be.
But be shure to follow step by step and take right rom version. If it's working you can flash original miui or custom roms.

Laptapper said:
I would try to follow flashing method from xiaomi.eu
Click to expand...
Click to collapse
Laptapper said:
I think it's safe as miui could be.
But be shure to follow step by step and take right rom version. If it's working you can flash original miui or custom roms.
Click to expand...
Click to collapse
Thanks for the suggestion, after i tried to flash to EU ROM i got new MIUI version which 12.04 , in global its 12.02. However the problem still happening or still remain unsolved. The bluetooth & wifi still cant be turned on, i tried on CIT it also not working and everytime the i try to open wifi & bluetooth settings , the settings always freeze and crash probably because it error. Is there any other solution you can provide?
Thanks

ohookayy said:
Thanks for the suggestion, after i tried to flash to EU ROM i got new MIUI version which 12.04 , in global its 12.02. However the problem still happening or still remain unsolved. The bluetooth & wifi still cant be turned on, i tried on CIT it also not working and everytime the i try to open wifi & bluetooth settings , the settings always freeze and crash probably because it error. Is there any other solution you can provide?
Thanks
Click to expand...
Click to collapse
I think, if you have done a really clean flash with formating data, that it's a hardware problem.

Laptapper said:
I think, if you have done a really clean flash with formatting data, that it's a hardware problem.
Click to expand...
Click to collapse
yes, i did i already follow the instructions & having no error at all for the ROM and other stuff except the WiFi & Bluetooth.
But for me its just really weird, my phone looks still great from outside no bend, dent, or crack it never fall as well.
The problem starts occurring by itself like the system is forcing the Bluetooth & WiFi to off then at some point the WiFi is connected but not transferring any data after restart everything fixed then its not working at all, which when i tried to turn it on it will freeze or the system not responding or off by itself.
btw appreciate your answer, i'm still waiting for other solution if possible :crying:

ohookayy said:
yes, i did i already follow the instructions & having no error at all for the ROM and other stuff except the WiFi & Bluetooth.
But for me its just really weird, my phone looks still great from outside no bend, dent, or crack it never fall as well.
The problem starts occurring by itself like the system is forcing the Bluetooth & WiFi to off then at some point the WiFi is connected but not transferring any data after restart everything fixed then its not working at all, which when i tried to turn it on it will freeze or the system not responding or off by itself.
btw appreciate your answer, i'm still waiting for other solution if possible :crying:
Click to expand...
Click to collapse
Are you shure that you've got a global version. I had nearly the same probs as I've flashed the global on my eu hardware.

Laptapper said:
Are you shure that you've got a global version. I had nearly the same probs as I've flashed the global on my eu hardware.
Click to expand...
Click to collapse
yes, the box says global ROM and the warranty as well and made in china. When i first buy it the box still sealed too but ididnt buy from the mi store.

ohookayy said:
yes, the box says global ROM and the warranty as well and made in china. When i first buy it the box still sealed too but ididnt buy from the mi store.
Click to expand...
Click to collapse
In my personal opinion there're 2 possibilities
Damaged hardware
Or
Modem Partition wrong or damaged
MODEM or RADIO - the phone's radio
Also called baseband, it is responsible for signals and on older devices may control wifi, bluetooth, and GPS (on most newer devices, these are handled by the kernel and ROM). Upgrades are country dependent and may improve or diminish battery performance, network signal strength, and roaming capability. It is also sometimes required to have a minimum Baseband version to use a ROM so that the RIL will play nice with the Baseband.
Modem firmware is a mini-OS for the cellular radio chip which has its own processor. Firmware is a general term, firmware exists for a lot of things on phone. The wireless chip for WiFi, GPS, and Bluetooth often has a firmware as can the GPU core among other things. These firmware files are usually located inside the SYSTEM or VENDOR partition. The modem firmware is special because it has its own separate Baseband Processor (BP) so the firmware is left out of the system image in its own partition.
Modem is not an Android-specific partition. It is tied to the hardware of the phone, but the kernel has a code allowing Android to interact with the hardware. But the baseband processor (BP) - which runs modem and is responsible for all communication through mobile networks e.g. call, SMS and internet - is totally isolated from Application Processor (the one we call CPU) and is not governed by Android kernel; it runs an independent RTOS.
May it helps you for getting a solution....

Laptapper said:
In my personal opinion there're 2 possibilities
Damaged hardware
Or
Modem Partition wrong or damaged
MODEM or RADIO - the phone's radio
Also called baseband, it is responsible for signals and on older devices may control wifi, bluetooth, and GPS (on most newer devices, these are handled by the kernel and ROM). Upgrades are country dependent and may improve or diminish battery performance, network signal strength, and roaming capability. It is also sometimes required to have a minimum Baseband version to use a ROM so that the RIL will play nice with the Baseband.
Modem firmware is a mini-OS for the cellular radio chip which has its own processor. Firmware is a general term, firmware exists for a lot of things on phone. The wireless chip for WiFi, GPS, and Bluetooth often has a firmware as can the GPU core among other things. These firmware files are usually located inside the SYSTEM or VENDOR partition. The modem firmware is special because it has its own separate Baseband Processor (BP) so the firmware is left out of the system image in its own partition.
Modem is not an Android-specific partition. It is tied to the hardware of the phone, but the kernel has a code allowing Android to interact with the hardware. But the baseband processor (BP) - which runs modem and is responsible for all communication through mobile networks e.g. call, SMS and internet - is totally isolated from Application Processor (the one we call CPU) and is not governed by Android kernel; it runs an independent RTOS.
May it helps you for getting a solution....
Click to expand...
Click to collapse
Thanks for the long and detailed explanation . My mobile network & GPS still work properly without any issues.
but idk if the Bluetooth & WiFi chip maybe fried inside
Maybe i just dont have any other option except to fix in mi store.
Once again thanks for the help :fingers-crossed:.