Develop Bugs

[Q] [HELP]My Kindle Fire Won't Turn Wifi On

last night I was reading online comics and it suddenly not respond so I force it restart and it was worse. My kindle cannot recognize my touching.
It is strange that TWRP still works. Restoring doesn't helps, too.
So I wipe it all(except for sdcard) and install various cm9 and cm7 with corresponding kernels from hashcode with no luck. Cm9 is ok but without wifi. Cm7 just wont respond.
Also I tried using TWRP to go back to pure stock and wifi still not working. So I redo all the root, twrp again.
Finally I fix permissions and install cm7 aka now it's screen recognize my touching but the wifi still cannot be turned on.
Is it possible wifi chip has been broken?
Any one can help me, THANKS!?

hey everyone, do u have any suggestions......
now, as long as I open wifi it goes dead. I don't know what to do. Is it possible that due to heavy use the chip gets break down?

I was wondering what remains the same after I flash roms. Because installing zip has formatted boot, data and system.
I hard off the device when the wifi went wrong. And the application in which led to this situation cannot be reinstalled(install said OK but openning it the screen was black, still responding to button savior).
So maybe the problem lies in the internal storage that is unchangeable. Any one helps!? Or should I contact amazon CS?

Half of the old apk is probably left in data/app
Happened to me once.
Sent from my E10i using XDA

aloy99 said:
Half of the old apk is probably left in data/app
Happened to me once.
Sent from my E10i using XDA
Click to expand...
Click to collapse
But why the wifi still cannot be turned on? yes, it is when I using the app the wifi connection seems to be unstable, and I pressed the power button for 20 seconds.
Thanks for your reply.

would try to clean up the wifi configuration:
turn wifi off
look for /data/misc/wifi/wpa_supplicant.conf
open the file and delete everything except the first two lines, they are:
ctrl_interface=tiwlan0
update_config=1
Click to expand...
Click to collapse
this is for stock rom - for cm7 it has to be simmilar
turn wifi on again
hope this helps ...

b63 said:
would try to clean up the wifi configuration:
turn wifi off
look for /data/misc/wifi/wpa_supplicant.conf
open the file and delete everything except the first two lines, they are:
this is for stock rom - for cm7 it has to be simmilar
turn wifi on again
hope this helps ...
Click to expand...
Click to collapse
Thanks all the same.
I used root explorer to search for wap_supplicant.conf since it's not in that folder and delete everything except the first two lines. (forget to mention that my wifi just shows turning on and I can't do anything, flash new roms won't help.)
Then I reboot it the result remains same.......

did you try to restart your router ?
because i have this sometimes with the stock rom - wifi tries to connect and can't - all my other devices work fine - i use to reboot to router and the kf is connecting immediately again

b63 said:
did you try to restart your router ?
because i have this sometimes with the stock rom - wifi tries to connect and can't - all my other devices work fine - i use to reboot to router and the kf is connecting immediately again
Click to expand...
Click to collapse
I'm sure it has nothing to do with my router. because I live on campus and use school wifi. wifi is in the state of turning on since booting. regardless of flashing new roms.
thanks for your reply.

just closing out all known issues ...
but nearly running out of ideas at this point
maybe something on your sdcard partition ? - i know it sounds crazy but i had a case where the fresh installed rom did not start until he copied the whole sdcard partition to computer as a backup and deleted everything (besides .android_secure and twrp folder)

b63 said:
just closing out all known issues ...
but nearly running out of ideas at this point
maybe something on your sdcard partition ? - i know it sounds crazy but i had a case where the fresh installed rom did not start until he copied the whole sdcard partition to computer as a backup and deleted everything (besides .android_secure and twrp folder)
Click to expand...
Click to collapse
I can only think of files remain unchangeable when flashing roms or wifi chip burned(hope not).
Anyway idea about the internal files with respect to wifi issues?
BTW, I didn't find the half installed app or any other files in data/app

ｔｕｒｌｙ２２１ said:
Anyway idea about the internal files with respect to wifi issues?
Click to expand...
Click to collapse
no - sorry - maybe do a logcat and look for something that gives a hint in the right direction

b63 said:
no - sorry - maybe do a logcat and look for something that gives a hint in the right direction
Click to expand...
Click to collapse
actually I'm just a noob. I don't know how to do a logcat and how to find the problem.

as you can't download it from the market, attached here is a logcat program
install it and you'll see a lot of debug lines - be shure to make or let make the kf a wifi connection attempt - save the log and attach it as .txt file to the thread - i'll take a look if i can see something to track down your problem

the thing is the wifi is turning on by default. no matter what I do. do u mean use some app which needs wifi?

b63 said:
as you can't download it from the market, attached here is a logcat program
install it and you'll see a lot of debug lines - be shure to make or let make the kf a wifi connection attempt - save the log and attach it as .txt file to the thread - i'll take a look if i can see something to track down your problem
Click to expand...
Click to collapse
it seems like the wifi is still turning on so I just open catlog and wait a few seconds and save it.

puh - was a long one - did'nt find something that will bring you further
03-18 18:43:55.148 I/SystemServer(1447): NetStat Service
03-18 18:43:55.148 I/SystemServer(1447): NetworkManagement Service
03-18 18:43:55.156 I/SystemServer(1447): Connectivity Service
03-18 18:43:55.156 I/ConnectivityService(1447): hostname has been set: cm7
03-18 18:43:55.171 I/WifiService(1447): WifiService starting up with Wi-Fi enabled
Click to expand...
Click to collapse
means the service starts
03-18 18:47:56.273 I/GoogleSearch(1655): Not connected to network.
Click to expand...
Click to collapse
tells us no news ...
and force closes a bit later
but there is never a connection attempt - strange ...

now I wonder which files are associated with wifi status in internal storage. some files must have been changed.

im kinda curious if you find a fix. ive been struggling with terrible wifi connection with my kindle. itll turn on, but it constantly turns off then after a while wont connect anymore. just says obtaining wifi then doesnt connect just shows saved wifi connection. im almost to the point of giving it away. not sure if amazon will help me out, and i wouldnt sell it to someone if i know it has wifi connection issues. i try to reset my router and it helps for a little bit, but then goes back to the issues i had

paranoid android85 said:
im kinda curious if you find a fix. ive been struggling with terrible wifi connection with my kindle. itll turn on, but it constantly turns off then after a while wont connect anymore. just says obtaining wifi then doesnt connect just shows saved wifi connection. im almost to the point of giving it away. not sure if amazon will help me out, and i wouldnt sell it to someone if i know it has wifi connection issues. i try to reset my router and it helps for a little bit, but then goes back to the issues i had
Click to expand...
Click to collapse
seems like we have different issues. Mine is turning on without any connection or list of available networks. Have you tried reboot, forget all networks or so on?

[Q] Forgot Pattern Lock

Hi there,
I owned a Galaxy Nexus running Jelly Bean 4.2.1 version, yakjuxw (Not rooted), GSM. I activated the Pattern Lock to prevent the kids at my relatives house messing my phone. Unfortunately, I forgot the pattern and the phone stays locked out. I have tried the pattern combinations for days but failed.
I have tried to key in my Gmail account username/password but since my phone is wifi/data switched off, I cant sign in. Moreover, I am not sure whether the USB Debugging is enabled.
I have tried some 'hole' methods recommended at some forums, but it didnt work on my phone.I hope to get access to my messages/images/some files and transfer them to my pc before reset the phone to factory setting. Please help! :-|

yu_buffon said:
Hi there,
I owned a Galaxy Nexus running Jelly Bean 4.2.1 version, yakjuxw (Not rooted), GSM. I activated the Pattern Lock to prevent the kids at my relatives house messing my phone. Unfortunately, I forgot the pattern and the phone stays locked out. I have tried the pattern combinations for days but failed.
I have tried to key in my Gmail account username/password but since my phone is wifi/data switched off, I cant sign in. Moreover, I am not sure whether the USB Debugging is enabled.
I have tried some 'hole' methods recommended at some forums, but it didnt work on my phone.I hope to get access to my messages/images/some files and transfer them to my pc before reset the phone to factory setting. Please help! :-|
Click to expand...
Click to collapse
You can reset the phone to Factory settings.
1. Turn off your phone.
2. Press vol up+vol down+power buttons till it vibrates. Now you see a dead android.
3. Navigate with your volume buttons to "Recovery Mode" and select it with the power button.
4. When its booted you should see a soort of menu.
5. Select "wipe data" (or something like that). THIS WIPES YOUR DATA AND YOUR INTERNAL STORAGE (music, pictures etc..)
6. Select reboot system now.
7. Done.
Sent from my Galaxy Nexus using XDA Premium HD app

Without wiping out the data
mrgnex said:
You can reset the phone to Factory settings.
1. Turn off your phone.
2. Press vol up+vol down+power buttons till it vibrates. Now you see a dead android.
3. Navigate with your volume buttons to "Recovery Mode" and select it with the power button.
4. When its booted you should see a soort of menu.
5. Select "wipe data" (or something like that). THIS WIPES YOUR DATA AND YOUR INTERNAL STORAGE (music, pictures etc..)
6. Select reboot system now.
7. Done.
Sent from my Galaxy Nexus using XDA Premium HD app
Click to expand...
Click to collapse
Thank you for the reply. But, I wish to get access to my files in order to transfer them to a save location before reset the phone to Factory settings. Is there a way to hack into the device without wiping out the data?

Try this out.
http://en.miui.com/thread-5684-1-1.html

ATTACK said:
Try this out.
http://en.miui.com/thread-5684-1-1.html
Click to expand...
Click to collapse
Call yourself from another phone and answer, after that your phone will probably get unlocked.

In ADB or some other way to access the file system in Recovery Mode
navigate to /data/system and
delete password.key and/or gesture.key
- reboot.
Password/Gesture Lock gone.
You can use AROMA File Manager in Recovery (would have to sideload it if you didn't pre-install it)
http://forum.xda-developers.com/showthread.php?t=1646108
Good luck. Post back with your solution.

Trying...
ATTACK said:
Try this out.
Click to expand...
Click to collapse
Thank you for the link. I am downloading the Cygwin on my Windows Vista machine. Slow broadband speed has actually delayed my work.

Sideload
jpinsl said:
In ADB or some other way to access the file system in Recovery Mode
navigate to /data/system and
delete password.key and/or gesture.key
- reboot.
Password/Gesture Lock gone.
You can use AROMA File Manager in Recovery (would have to sideload it if you didn't pre-install it)
http://forum.xda-developers.com/showthread.php?t=1646108
Good luck. Post back with your solution.
Click to expand...
Click to collapse
Thank you for the help. What do you mean by sideload? I am using a Galaxy Nexus which has no SD slot.

yu_buffon said:
Thank you for the help. What do you mean by sideload? I am using a Galaxy Nexus which has no SD slot.
Click to expand...
Click to collapse
Please use the search function:
http://forum.xda-developers.com/sitesearch.php?q=sideload

adb method failed
ATTACK said:
Try this out.
/QUOTE]
Hi, I have used the Mint Live session instead. When I type <adb shell>, it returns <error no device found>. What should I do? Please help.
Click to expand...
Click to collapse

I am a noob
jpinsl said:
Please use the search function:
Click to expand...
Click to collapse
Hi, I have searched about sideload. I have never rooted my phone before and having difficulties in understanding the android features. Can you provide me a walk-through on how can I install the recovery on my locked out phone and access my files please.
FYI, I tried the adb method listed above, but the terminal returns <error no device found>. I tried the method on Mint (linux) live session.

I managed to get access to my data. Messages are the only thing I am losing out. Thank you XDA guys.

Backup non-rooted LG G4 stuck in "UI stopped working" loop

Hello everyone,
Yesterday, after I tried to charge my LG G4, it stopped booting properly: it seems to boot "normally" under the hood, except that the system UI is not properly loading so instead I get a black screen and a message "Unfortunately system UI stopped working". If I click "ok", it comes back within two seconds (the screen stays black apart from the error message). I cannot do anything, like unlock the phone or access anything on it, despite the fact that I can hear notifications coming in.
Unfortunately phone is not rooted, developper mode isn't enabled, and I don't have a custom recovery. I would do a factory reset if it weren't for my Google Authenticator codes, some of which I haven't properly backed up like an idiot. Thus I was wondering what I could do to back up my phone or solve the issue.
Here is what I've already tried:
Press down VOLUME DOWN + POWER to enter recovery mode, but since I don't have custom recovery this only gives me the option to do a hard factory reset and lose all my data.
Use adb commands to access my phone, but I get "unauthorized device" because I haven't enabled developper tools on the phone.
Use the app "LG Bridge" on my mac, but it also doesn't work for the above reason.
I see three possibilities, but I don't know whether any is genuinely doable:
Solve the issue of the error message, which from what I've read requires me to wipe the cache. But how to do that without custom recovery?
Somehow bypass the UI to unlock the phone and unable developer tools
Manage to backup the phone from my computer while its locked without developper tools enabled.
Note that obviously this is my phone, I know my passwords, I have access to my Google account, etc.
Any help would be greatly appreciated, without my Google Authenticator data I'll be locked out of an important email account.

satiricon22 said:
Hello everyone,
Yesterday, after I tried to charge my LG G4, it stopped booting properly: it seems to boot "normally" under the hood, except that the system UI is not properly loading so instead I get a black screen and a message "Unfortunately system UI stopped working". If I click "ok", it comes back within two seconds (the screen stays black apart from the error message). I cannot do anything, like unlock the phone or access anything on it, despite the fact that I can hear notifications coming in.
Unfortunately phone is not rooted, developper mode isn't enabled, and I don't have a custom recovery. I would do a factory reset if it weren't for my Google Authenticator codes, some of which I haven't properly backed up like an idiot. Thus I was wondering what I could do to back up my phone or solve the issue.
Here is what I've already tried:
Press down VOLUME DOWN + POWER to enter recovery mode, but since I don't have custom recovery this only gives me the option to do a hard factory reset and lose all my data.
Use adb commands to access my phone, but I get "unauthorized device" because I haven't enabled developper tools on the phone.
Use the app "LG Bridge" on my mac, but it also doesn't work for the above reason.
I see three possibilities, but I don't know whether any is genuinely doable:
Solve the issue of the error message, which from what I've read requires me to wipe the cache. But how to do that without custom recovery?
Somehow bypass the UI to unlock the phone and unable developer tools
Manage to backup the phone from my computer while its locked without developper tools enabled.
Note that obviously this is my phone, I know my passwords, I have access to my Google account, etc.
Any help would be greatly appreciated, without my Google Authenticator data I'll be locked out of an important email account.
Click to expand...
Click to collapse
Well at least you can backup your phone in download mode with SALT ( https://bit.do/SALTatXDA ) but restoring is another story.
Sent from my LG-H815 using XDA Labs

Thanks a lot for your reply! I'll try backing up with SALT tonight. There are two things I'm wondering:
How do you think I could extra data from the backup?
Will I be able to wipe the cache or enable usb debugging with SALT? That might solve the issue.

satiricon22 said:
Thanks a lot for your reply! I'll try backing up with SALT tonight. There are two things I'm wondering:
How do you think I could extra data from the backup?
Will I be able to wipe the cache or enable usb debugging with SALT? That might solve the issue.
Click to expand...
Click to collapse
You can mount the userdata partition on Linux (e.g in FWUL) and then browse through it like it's on your phone.
You can wipe the cache paetition in SALT yes. It's in the advanced menu there (erase partitions -> select cache and only that). It will not wipe the dalvik cache though.
I dunno about the USB debugging though. Maybe there is a way but if so you would need a very unrestricted download mode (depends on model and firmware). And the whole process is not easy.
It requires again SALT and there you have in the advanced menu the option to open a shell.
Here you can mount userdata with
mount /data
But it's usually mounted already. Then it's a try and error. You could e. G. try to delete the dalvik cache etc.
Sent from my LG-H815 using XDA Labs

steadfasterX said:
You can mount the userdata partition on Linux (e.g in FWUL) and then browse through it like it's on your phone.
You can wipe the cache paetition in SALT yes. It's in the advanced menu there (erase partitions -> select cache and only that). It will not wipe the dalvik cache though.
I dunno about the USB debugging though. Maybe there is a way but if so you would need a very unrestricted download mode (depends on model and firmware). And the whole process is not easy.
It requires again SALT and there you have in the advanced menu the option to open a shell.
Here you can mount userdata with
mount /data
But it's usually mounted already. Then it's a try and error. You could e. G. try to delete the dalvik cache etc.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Hi!
I've found out that the Google Auth keys are in /data/data/com.google.android.apps.authenticator2/databases/databases. So I need to backup /data/. However, when I show the list of partitions with SALT, I don't see /data/. Is there a way to backup /data/ on my unrooted device?
Secondly, I haven't managed to wipe the dalvik cache with the command shell, would you be able to point me in the right direction?
Thank you so much!

OnePlus 3 not starting anymore

Hi,
I'm running a current Stock-ROM on my OP3, as provided by OnePlus OTA, never flashed something else. Just using the phone out of the box.
Yesterday, I deleted some cache data to free some space on my 99% filled up phone. Then I opened the gallery but not all thumbnails appeared and then it stucked completely. I holded the power button and it switched off. Now when turning the phone on a message appeared saying:
"The dm-verity is not started in enforcing mode"
After a few seconds it changes to the 3 animated points and this never ends. All I can do is switching it off, starting recovery mode or fast mode again with the same behaviour. I tried to connect it with my PC (W10) but it is not showing up.
How can I fix this problem without loosing my data especially my pictures and personal folders. How can I backup my data? I can still see them in recovery mode but how to access them and copy them? I could live with resetting the phone losing all settings and apps, but not my files.
What is your suggestion? Thanks in advance.

Ok, I just tapped on "Reset system setting", lost all apps and settings but it starts again and all my files are still there. Problem solved.

Question Samsung S21 FE cannot connect after software update/restart

Hi,
I recently performed a software update on my samsung s21 FE and after the phone rebooted, it could not find a cell signal. I was receiving data, but I could not call or text. After about an hour the phone picked up a signal and connected to the network. I wasn't doing any kind of changes to settings at this time. Later on in the evening, I restarted the phone just for testing purposes and it did the same thing. No signal for about 20 minutes after restart and then it just connected to the network without reason. I tried the following troubleshooting steps, but they didn't fix the issue:
Reboot (again)
Reset network settings
toggle airplane mode
Reseated SIM card while the phone was off
Phone details:
Total Wireless network
Model number: SM-G990U1/DS
Firmware: G990U1UEU3CVG2
Service Provider Software version:
SAOMC_SM-G990U1_OYM_TFN_12_0010
TFN/TFN,TFN/XAA
Any suggestions on next steps?
Thanks.

Hello, did you try a wipe cache partition from recovery mode ?
That's the first thing I do if I have problem after a system update...

jbs68 said:
Hello, did you try a wipe cache partition from recovery mode ?
That's the first thing I do if I have problem after a system update...
Click to expand...
Click to collapse
Thanks for the suggestion! I did not try that.

try this procedure and if it doesn't work you can try flashing a stock rom via odin (with Home_csc_xxx file to keep user data)