Database Info

Nexus S Not Connecting to Network on Reboot

My dad's Nexus S keeps disconnecting from Wind and will NOT automatically reconnect to Wind. I've set it to Automatic. On top of this, *every* time I enable Wifi or Bluetooth on his device, his Wind connection drops and remains dropped until I manually reconnect.
The only way around this issue is if I manually select Wind's network in the settings menu, thereby avoiding 'Select automatically'. The problem here is that when the phone needs a reboot, it doesnt remember the last network and it needs to be manually selected *again*.
I've done a quick search via Google and there are others having the same/similar problem;
http://www.google.ca/support/forum/p/Google+Mobile/thread?tid=34411ac78e8a4ff6&hl=en
Apparently the 2.3.6 update doesn't fix this either. Is there a 2.3.7 release? I'm even thinking of rooting and flashing the phone to use a custom ROM (MIUI, its much cleaner with better shortcuts which my dad would like).
Does anyone know of a solution to this? I'm thinking of going into Wind and having it replaced (its less than a week old). Question is, if he's racked up more than 30 minutes, can he still get a straight exchange for the phone? Would it still be eligible for exchange/replacement if I tried the ICS update to the phone?

Did you guys root the phone? Ans if you did, did you installed custom rom? If so, it just might be the incompatibility with the Nexus S. If you didn't root it, the phone just might be defected. Try updating the os. It always doesn't hurt to update os. If that doesn't work, I guess you should return it and get the new one it somethign :/
Sent from my Nexus S using XDA App

At the minimum, I would try updating to 2.3.6.

Yeah try to update to newer os. And if that doesn't work, I guess you should exchange your phone or something??
Sent from my Nexus S using XDA App

kyokeun1234 said:
Did you guys root the phone? Ans if you did, did you installed custom rom? If so, it just might be the incompatibility with the Nexus S. If you didn't root it, the phone just might be defected. Try updating the os. It always doesn't hurt to update os. If that doesn't work, I guess you should return it and get the new one it somethign :/
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
I've updated my original question with more details.
But no, its not a rooted phone. Everything is stock Android 2.3.4. The phone is only about 5 days old, we got it for him on the 27th of December (or 26th, cant remember). I have installed a few applications (cnn news, wp.pl, bbc news, unit converter, etc). I've updated all the applications as well.
How can I obtain 2.3.6 and install it? Is the process difficult and would it render the phone non-returnable to his carrier for fixing/replacing?

If you have stock, the process is easy was snap if there's a avaliable ota update to your phone. Go to setting-about phone-system update (I'm pretty sure) and if there's an update for your phone, you can download and install the new rom from there.
Sent from my Nexus S using XDA App

kyokeun1234 said:
If you have stock, the process is easy was snap if there's a avaliable ota update to your phone. Go to setting-about phone-system update (I'm pretty sure) and if there's an update for your phone, you can download and install the new rom from there.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Will it give me the option to update to Iced Cream Sandwich Android 4.0 as well?

Um probably not. Depends on what model you're using. It probably promt you to update to later version of gingerbread :/
Sent from my Nexus S using XDA App

Hi, I have the exact same problem as the original poster, except worse.
I lose my data connection when I turn on wifi, or after I reboot my phone. And once I lose the connection, I have to power off and take out the battery for it to work again. My phone was already rooted when this problem start about 4 days ago, was using stock rom (2.3.6) I downloaded for my I9020T (don't ask, minor hiccup when I was rooting my phone...)
So far I've tried the following:
1. boot to CWM recovery -> factory reset, wipe cache, unsuccessful
2. *#*#4636#*#*, changed preferred network to WCMDA preferred or only, unsuccessful (I also had issues with sending SMS, so I also updated the SMSC, which is 07916174080001f6 for Mobilicity in Canada). Also selected "Automatic" in "Select radio band".
3. I flashed the OS to cyanogen, still same problem.
4. In mobile settings, tried changing apn, toggle data connection, 2g/3g, "Select automatically", doesn't work.
5. a whole bunch of other voodoo I found on the web, but none worked.
The only thing I haven't tried yet is flashing with a stock sbf, because I can't seem to be able to find one.
The error message I see in *#*#4636#*# -> Phone info is something like DcInactiveConnection...: unknown data error (sorry can't remember the whole thing).
Also tried asking mobilicity to refresh my service, but that also didn't help.
I ran logcat in terminal emulator and searched through the log for "error" or anything suspicious, the only thing I saw were these,
1. Error loading keycharmap file '/system/usr/keychars/herring-keypad.kcm.bin'
2. caused by: java.net.SocketTimeoutException: Connection timed out
I/TelephonyRegistry( 188): notifyDataConnection: state=0 isDataConnectivityPossible=false reason=apnSwitched interfaceName=null networkType=3
I/TelephonyRegistry
3. onErrorResponse: Failed to send 5 events because of [com.android.volley.TimeoutError]
D/Volley
Tried googling all of them but didn't find anything useful.
I've been at this for the past 4 days and still haven't been able to fix this. I tried swapping in another mobilicity sim card and it also had the same behaviour, so it's definitely something with my phone.
Also, after I power down and remove the battery and power it back up again, the connection still doesn't come back automatically, but I have to toggle the airplane mode to get it to connect.
At this point, what else can/should I try? Or should I just ask them to send it for warranty?
Any help/advice will be VERY much appreciated!!!! And apologies for the essay.
Thanks!

NM, I reread your post. I have nothing for you. Sorry.

Please help - Cyanogen Nightmare! Can't connect to cell network

EDIT: RIGHT AFTER POSTING, MY PHONE RANDOMLY STARTED WORKING. I HAVE NO IDEA WHAT I DID BESIDES POST HERE. MAGIC.
I installed Cyanogen version 7.2.0 just fine using the guide that was found here: http://www.mrmuh.com/2012/01/update-a-motorola-milestone-from-motorola-firmware-to-cyanogenmod-7/
However, the next morning I think I enabled the 2g/3g switch widget - and then my phone entered into a constant and continuous loop of "com.android.phone has unexpectedly closed" - and couldn't connect to cell service.
In a panic, I searched everywhere for fixes. I then tried a few of the fixes which instructed you to download "sqlite editor" and do some edits to the settings file. I did this, along with a couple of other network edits, resetting them to "0" instead of the "1" they were currently set to. No help.
Finally, I went into the Open Recovery system and did a full reset on cache/factory reset/etc. and then rebooted into cyanogen. Now my network won't even connect for a half a second and then crash like before - just straight up NO CONNECTION.
Now I've went through and attempted changing back some of those settings I messed around with in Sqlite - but to no avail.
Anyone with any ideas on how I can get an operating phone again, please let me know. I noticed I still have all my apps from previously, so I don't think I'm really factory resetting the phone. That could be part of the issue, I'm sure....I am very depressed and hoping for a miracle!!

Look into installing minimod recovery and then flashing the correct radio for your location after a full wipe.
If you do a google search you should find minimod. I'm on my phone or I would just link you.
Sent from my Milestone using XDA App

OK Thanks for your reply.
However, randomly, just after I posted this - I looked down and my phone had a full 2G Connection. Went into baseband settings, enabled 850 band 3G, and now I have full 3G connectivity.
I have no clue how this happened. XDA forum is magical?
Thanks again for your reply, but thankfully I don't need the minimod suggestion as of now!!

You're welcome. You might want to go ahead and install minimod though. I made the mistake of not having it installed and flashed a new rom without the ability to select bands and was without a phone all day. It's better safe than sorry.
redsrule2500 said:
OK Thanks for your reply.
However, randomly, just after I posted this - I looked down and my phone had a full 2G Connection. Went into baseband settings, enabled 850 band 3G, and now I have full 3G connectivity.
I have no clue how this happened. XDA forum is magical?
Thanks again for your reply, but thankfully I don't need the minimod suggestion as of now!!
Click to expand...
Click to collapse

jhealy said:
You're welcome. You might want to go ahead and install minimod though. I made the mistake of not having it installed and flashed a new rom without the ability to select bands and was without a phone all day. It's better safe than sorry.
Click to expand...
Click to collapse
Good call. I'm just quite happy this is working now, but you are right, don't want that doomsday feeling again. Thanks

im having the same problem here :// i only can get cellNetwork if i restart with airplane mod.. then after i rebooted i go back to normal 3G/2G mode but otherwise i dnt get cell signal// also seems like wifi has some bugs im using HOHO CM7

Do a fresh install of HONO through minimod recovery.
marwan91 said:
im having the same problem here :// i only can get cellNetwork if i restart with airplane mod.. then after i rebooted i go back to normal 3G/2G mode but otherwise i dnt get cell signal// also seems like wifi has some bugs im using HOHO CM7
Click to expand...
Click to collapse
Sent from my Milestone using XDA App

jhealy said:
Do a fresh install of HONO through minimod recovery.
Sent from my Milestone using XDA App
Click to expand...
Click to collapse
i did.. still the same problem ^^

Did you install the correct radio?
Sent from my Milestone using XDA App

Go download a apndroid.apk Google it.
that happened to me too

htc sensation wifi error

yes I have tried almost everything, like flashing custom roms or stock ruu almost everyday with different variations. flashing kernels, tweeks, so on and so on.
It works somehow and it disconnect itself after a while or totally stucks in "wireless is turning on". After it get online it makes couple of reboots and it gives "wireless is turning on" error again. I can use the phone for days but wireless never gets on.
The funny point is when wireless on and screen is locked and screen is off. When I attempt to click screen lock button, sometimes it never gives light but I can see that The screen is on and I can move the ring and do whatever i want but it is very hard to see actually. I have to put on light on to see the pictures but it doesnt happen when wifi is off or gives error.
and another funny point is I can swipe down upper bar when screen is locked. I can do bypass.
What the hell is going on my phone? no idea really

lol, i don't know a solution for the screen/wifi issue. but lockscreen pulldown status bar is a new feature of ICS, not a bypass
to make it easier to access your notifications

we have the same issue i even downgrade to GB but still the same problem did have the wifi issue when you did OTA ?

lenetfm said:
we have the same issue i even downgrade to GB but still the same problem did have the wifi issue when you did OTA ?
Click to expand...
Click to collapse
the problem has come after I updated my phone to ICS since february I guess. I have almost tried everything on everyday but still having issues. I am sure it is all about software problem, nothing is wrong with hardware

me too i am exactly like you now i am running GB and i ma flashing the radio

I think most of the people having same issues and problems but having no solution for that? it is just ridiculous.
Is there anybody out there that can help us please.
thanks

ozy01 said:
I think most of the people having same issues and problems but having no solution for that? it is just ridiculous.
Is there anybody out there that can help us please.
thanks
Click to expand...
Click to collapse
Hi,
Have a look at THIS THREAD
Particularly # 3 and Extra 1

I have this problem as well...whatever I do, I can't get wifi to work anymore...I reflashed firmware, tried several different roms, I followed the guide in the aforementioned post...nothing helps...it always says "Error" after some time.
Is there anybody who knows what to do?

Struggled with same problem for months...gave up
I had the same problem with my wi-fi and bluetooth. Both would get stuck on "turning on" mode and never come on. Everything else worked fine. I too flashed ROMS, Kernels, RUU's etc. to no avail. SO I GAVE UP. After 2 months without wifi i couldn't anymore so i called HTC, they asked for my S/N and IMEI and confirmed I was still under warranty, so I un-rooted, went back to S-ON, flashed the newest official T-Mobile RUU and shipped the phone away. I called today and they said the MOTHERBOARD was being replaced and I should have it back this week! Woot-Woot! Try giving HTC a call...worst thing that happens is they say NO LONGER UNDER WARRANTY...but you won't find out till you give em a call...*shrug.

I have the same problem with the lock screen and wifi. Except for me the wifi is always on "Error". It doesn't say anything else it just says error. It started happening after a system update failed to install. An update would come up and reboot my phone to try and install it. So it would start up ext4 recovery and ext4 would do some stuff and then reboot again. After boot I was asked again if I wanted to install the update. I repeated this process a couple of times before deciding I had enough and deleted the update.
Wifi has been on Error ever since. Everything else works fine.
Does anyone have any ideas? I'm on a HTC Sensation XE stock rom but HTC Dev unlocked and perm rooted.

Datastreamx said:
I have the same problem with the lock screen and wifi. Except for me the wifi is always on "Error". It doesn't say anything else it just says error. It started happening after a system update failed to install. An update would come up and reboot my phone to try and install it. So it would start up ext4 recovery and ext4 would do some stuff and then reboot again. After boot I was asked again if I wanted to install the update. I repeated this process a couple of times before deciding I had enough and deleted the update.
Wifi has been on Error ever since. Everything else works fine.
Does anyone have any ideas? I'm on a HTC Sensation XE stock rom but HTC Dev unlocked and perm rooted.
Click to expand...
Click to collapse
did you try as malybru said on his post?
use the extra 1 part of this thread
i had the same issue with wifi after an official update

rzr86 said:
did you try as malybru said on his post?
use the extra 1 part of this thread
i had the same issue with wifi after an official update
Click to expand...
Click to collapse
Yes I'm trying to find the boot.img I need but I can't find one that is right for my version and all that.

Datastreamx said:
Yes I'm trying to find the boot.img I need but I can't find one that is right for my version and all that.
Click to expand...
Click to collapse
find your firmware.zip,extract the boot.img from it,place it the file where adb is and then do the commands

ozy01 said:
yes I have tried almost everything, like flashing custom roms or stock ruu almost everyday with different variations. flashing kernels, tweeks, so on and so on.
It works somehow and it disconnect itself after a while or totally stucks in "wireless is turning on". After it get online it makes couple of reboots and it gives "wireless is turning on" error again. I can use the phone for days but wireless never gets on.
The funny point is when wireless on and screen is locked and screen is off. When I attempt to click screen lock button, sometimes it never gives light but I can see that The screen is on and I can move the ring and do whatever i want but it is very hard to see actually. I have to put on light on to see the pictures but it doesnt happen when wifi is off or gives error.
and another funny point is I can swipe down upper bar when screen is locked. I can do bypass.
What the hell is going on my phone? no idea really
Click to expand...
Click to collapse
Hi buddy.. I was having the same problem as you with the wifi error. Also my phone was restarting by itself. what I did was that I removed the SD card and left the phone without it. It worked for me. After that my wifi was working perfectly and no more restarts. I had a 8GB SD Card before, maybe with this new update this 8GB SDcard was too heavy for the phone. I running a 2GB SDcard now with no problems. Please let me know if it worked to you as well.. Good luck!!

ozy01 said:
I think most of the people having same issues and problems but having no solution for that? it is just ridiculous.
Is there anybody out there that can help us please.
thanks
Click to expand...
Click to collapse
I tried this, but it did not work. I'm not sure if my problem is a hardware failure or a software problem. 3 weeks after I got this phone, it got water damaged. Full of water! I took out the battery, letted it dry for some hours and turned it on. Everything worked! Only thing to see from the water, was the spot, that shows if it have got water, was 3/4 red. Everyting went good within a month or so. Then in feburary/march it stopped working (wifi). The same thing for Bluetooth. It's just writing "turns on" wifi or the bluetooth, and after 5-10 minutes it say "error"
Edit: The reason why I wonder about if it's a hardware/software failure is, I do not remember if it came within a install of an costum rom or it just happened out of now where
Any sugestions?
Huotari

I had the same problem, this is how i fixed it : first flahs 4EXT recovery, not clockwork, then get the rom you want and a super wipe, go into recovery, turn smartflash on in tools. Superwipe, then let it reboot, turn smartflash on again, and flash the rom
Sent from my HTC Sensation Z710e using xda premium

Sent from My Omega powered beast, using Xparent ICS
---------- Post added at 10:29 AM ---------- Previous post was at 10:28 AM ----------
timmy-kidd said:
I had the same problem, this is how i fixed it : first flahs 4EXT recovery, not clockwork, then get the rom you want and a super wipe, go into recovery, turn smartflash on in tools. Superwipe, then let it reboot, turn smartflash on again, and flash the rom
Sent from my HTC Sensation Z710e using xda premium
Click to expand...
Click to collapse
Ignore this info. What you need to do is log into your router hub & change the wifi signal Ch from auto to say, number 4 or summat, guarantee that's your problem.
Sent from My Omega powered beast, using Xparent ICS

[Q] Not receiving calls. How can I restore stock radio?

Hi, I've been fighting this problem for about a month. I'm certainly really frustrated.
I detected some time ago that, when someone tries to make a voice call yo my number, my phone seems not to receive the call (or the sequence required for the phone app to show the incomming call is broken at some point, beginning at the radio fw). I've tried many things, like flashing other radios, installing rils, reinstalling the rom (I'm using Revolution HD 7.0.4). The problem still happends every time.
Of course the first step I took was make a complaint to the phone company (Movistar Argentina); they make several tests, and finally change the sim card for a new one. Same as before.
The sim card and the company service seems to work fine, since when I put the same sim card in another phone, I had no problem to receive calls.
I thought full stock restore may be helpful, but I really don't know how to do that since I suspect not everything is placed back as it was OTB. For instance, I don't know how can be the radio+ril can be restored to factory defaults.
Any suggestions will be very appreciated.
Best regards,
Dario

If you can find access to the ruu for your region then you can just run that and it will restore everything to default. I'm not sure if since you are in a different country that you need a different ruu. If you can use the the American 2.47.502.7, I can provide a link. Also have you tried backing up just stuff you need from your sd card and wiping it. Sometimes there can be a file there that will cause issues.
Sent from my Inspire 4G using xda premium

Gizmoe said:
If you can find access to the ruu for your region then you can just run that and it will restore everything to default. I'm not sure if since you are in a different country that you need a different ruu. If you can use the the American 2.47.502.7, I can provide a link. Also have you tried backing up just stuff you need from your sd card and wiping it. Sometimes there can be a file there that will cause issues.
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
Thanks four your reply.
I actually used the stock rom (I bought the device in America) for several months until change to Revolution ROM, so if you can provide me with a link I'll be grateful. I tried downloading the update from HTC official site, but seems to be an upgrade only application, I cant really tell. It ended up stopping with an error code.
I'll try also completely formatting the sd card.

Here you go. Make sure to install HTC sync on pc and leave it running in background. Then just plug in phone and run from pc
Ruu US 2.47.502.7
Sent from my Inspire 4G using xda premium

Gizmoe said:
Here you go. Make sure to install HTC sync on pc and leave it running in background. Then just plug in phone and run from pc
Ruu US 2.47.502.7
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
Thanks a lot, start downloading right now.
I've just installed Revolution 6.3.3, since I read in some other post that it comes with a RIL, and there's a suggestion about which radio version to use with it. So, after formatting every partition, sd card included, I flashed the proper radio and RHD. For the moment, it seems the phone is working fine, but can't be sure about ir since previously it also had some "god moments". Anyway, I'll keep watching how it behaves for a couple of days.
As a measure of last resort I'll install the stock rom Gizmoe kindly provided.
Thanks again, I'll report back with the results!

tripero78 said:
I'll report back with the results!
Click to expand...
Click to collapse
So far, so good

After a while, even with a clean RHD 6.3.3 installation, I'm not receiving calls again.
I'm able to make a call, receive sms, use data connection (wifi and 3g), pretty much everything but receive a voice call.
Don't really what to do anymore, I'm considering a hw problem now...

tripero78 said:
After a while, even with a clean RHD 6.3.3 installation, I'm not receiving calls again.
I'm able to make a call, receive sms, use data connection (wifi and 3g), pretty much everything but receive a voice call.
Don't really what to do anymore, I'm considering a hw problem now...
Click to expand...
Click to collapse
Have you tried reversing to s on. Wiping SD card and then running the ruu I provided. If it still happens with complete stock then I would agree its a hardware or sim card issue.
Sent from my Inspire 4G using xda premium

Gizmoe said:
Have you tried reversing to s on. Wiping SD card and then running the ruu I provided. If it still happens with complete stock then I would agree its a hardware or sim card issue.
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
Ok I've just reversed to s-on with aahk-13012012. The scripts automatically downloaded HTC ATT stock rom, and it seems to be the same version you provided me earlier.
Then, updated to the latest rom published in HTC support site.
Again, as under a clean RHD rom, the first couple of hours everything works fine. So I'm gonna test it every day for 3 days in a row and see what happends.
Thanks again!

tripero78 said:
Ok I've just reversed to s-on with aahk-13012012. The scripts automatically downloaded HTC ATT stock rom, and it seems to be the same version you provided me earlier.
Then, updated to the latest rom published in HTC support site.
Again, as under a clean RHD rom, the first couple of hours everything works fine. So I'm gonna test it every day for 3 days in a row and see what happends.
Thanks again!
Click to expand...
Click to collapse
Nope, sadly not so many hours later, same problem as before.
I'm going back to RHD, s-off and root, an run an app I found in this forum that allows me to check some system logs. I'm interesting in monitoring the radio log.

Ask your carrier for a new sim. They should just give you one. That's what I would try next.
Sent from my Inspire 4G using xda premium

Gizmoe said:
Ask your carrier for a new sim. They should just give you one. That's what I would try next.
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
Actually, before trying flashing new roms or downgrading to previous versions, I asked for a new simcard. I'm using the new one now for about a week

tripero78 said:
Actually, before trying flashing new roms or downgrading to previous versions, I asked for a new simcard. I'm using the new one now for about a week
Click to expand...
Click to collapse
Ok. I assume you have tried different radios and even probably switched when ruu was flashed.
Sent from my Inspire 4G using xda premium

Gizmoe said:
Ok. I assume you have tried different radios and even probably switched when ruu was flashed.
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
Yes, I've tried many radios and rils.
I can't really tell when exactly the incomming calls problem started, but since the last time I remember not having the problem, I changed the service provider and tried installing AOSP (aospX-1.0.0-BR4-DHD), with the corresponding radio and ril. I didn't liked it, so I went back to RHD (again, with the proper radio). That's why I thought reversing to stock sw could reverse the problems, if any of them were caused by rom/radio installations.

Now I'm back to RHD 7.0.3, and don't really thing flashing some other radio will help at all, but is there some recommendation about it I'll certainly consider it.
As allways, I'm receiving calls again. That could last for several hours.
It would be very useful if there is any script or app to debug real-time events related to incomming calls, so I can figure out what is really happening.
Thanks in advance, once again

Yeah it seems something in the hardware is malfunctioning. You have ruled out the software.
Sent from my Inspire 4G using xda premium

Gizmoe said:
Yeah it seems something in the hardware is malfunctioning. You have ruled out the software.
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
Yeap, sadly there is no support in my country
Thanks for all your help!

Something strange (at least for me) happend.. Before flashing back RHD, I formatted all partitions (even made a new sd partition and formatted it). So, as far as I know, that completely wipes every peace of data.
But... my home wireless connected automatically!! no need to enter password or select it from the list of available wifi networks. Don't know where that configurations are stored, but it seems something is not being wiped up as I expected...

tripero78 said:
Something strange (at least for me) happend.. Before flashing back RHD, I formatted all partitions (even made a new sd partition and formatted it). So, as far as I know, that completely wipes every peace of data.
But... my home wireless connected automatically!! no need to enter password or select it from the list of available wifi networks. Don't know where that configurations are stored, but it seems something is not being wiped up as I expected...
Click to expand...
Click to collapse
WiFi settings are synced with google account. Tripped me out the first time too.
Sent from my Inspire 4G using xda premium

Gizmoe said:
WiFi settings are synced with google account. Tripped me out the first time too.
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
Can't beleive it!

No wifi signal.......no sim signal help please !!!

ello,
I need file for HTC U-11 Version 8.0 latest one,Following are the details
cid: BS_US001
mid: 2PZC 50000
product: htc_ocnwhl
after ruu and custom rom flash phone boots up normal, however I cant get pass the blue setup screen wizard as my phone isnt seeing any wifi connection and sim card isn't detected. So am stuck there, are there any file to restore my wifi signal and sim signal. I can enter TWRP though. Any and ALL help will be appreciated. Thanks in advance

I have a very similar problem, however I am and have always been on stock ROM. Yesterday suddenly my phone lost wifi and telephony connection. It was just there, sitting on my desk, one minute it was working and I was checking my e-mail, the next one it was not. The phone now detects no SIM card and if I try to enable wi-fi it just hangs in "enabling" status for some time until it gives up and disables it again.
I think it might be some hardware or low-level issue, even if I am having a hard time how anything could happen while my phone was sitting on the desk. Next step is a hard reset and if it doesn't, then there is no hope left I think.
Your symptoms are similar, even if it happened after flashing. The only thing which I hope might help you is that, assuming that your situation is comparable to mine, if you manage to get past that screen or to access the Bluetooth settings, you can probably connect the phone to the internet through Bluetooth tethering. Once you are connected to the internet, many things are easier. Also, is that blue screen the one forcing you to sign in to a previously synced account (factory reset protection)? If so, there used to be a loophole in this, there are several youtube videos about it which you can easily find. Perhaps it's still there.
EDIT: Sorry for the necroposting, for some reason I overlooked the date of the original post.

how you doing ? Not sure if you remember my situation with my HTC U 11, I managed to get my bootloader unlocked . it's a BS_US001 2PCZ50000 . my issue now , phone is on but no IMEI , No IP address and Mac address 20:00:00:00:00. Been searching all, over for a fix. I have root and can enter TWRP. Please can you assist me in any way possible.
I have no cellular network also. Thanks again for previous and future assistance given by members of xda

Hey Matty, how you doing ? Not sure if you remember my situation with my HTC U 11, I managed to get my bootloader unlocked . it's a BS_US001 2PCZ50000 . my issue now , phone is on but no IMEI , No IP address and Mac address 20:00:00:00:00. Been searching all, over for a fix. I have root and can enter TWRP. Please can you assist me in any way possible.
I have no cellular network also. Thanks again for previous and future assistance Matty

Hey Matty, how you doing ? Not sure if you remember my situation with my HTC U 11, I managed to get my bootloader unlocked . it's a BS_US001 2PCZ50000 . my issue now , phone is on but no IMEI , No IP address and Mac address 20:00:00:00:00. Been searching all, over for a fix. I have root and can enter TWRP. Please can you assist me in any way possible.
I have no cellular network also. Thanks again for previous and future assistance Matty

Just for future reference: my U11 never resumed working after this. I kept using it for two full months, after moving my SIM card to a spare phone (good old M8) and using bluetooth tethering to get it to connect to the internet. I hoped that
for some reason the problem would at some point just go away by itself, which of course wasn't the case. I didn't try a factory reset because other people had no luck with it. So no happy ending for this story.
Should anybody else encounter this problem and land on this thread, I have nothing better to recommend than just doing the same: don't bother trying to fix it, move your SIM card to some older spare phone and use bluetooth tethering to bring the U11 to the internet. This will win you some time to pick a new phone without rushing, while critical things like Whatsapp, authenticator apps and so on will keep working, making it easier to migrate to the new phone.

Sim is back but no wifi
Black Antitoon said:
Just for future reference: my U11 never resumed working after this. I kept using it for two full months, after moving my SIM card to a spare phone (good old M8) and using bluetooth tethering to get it to connect to the internet. I hoped that
for some reason the problem would at some point just go away by itself, which of course wasn't the case. I didn't try a factory reset because other people had no luck with it. So no happy ending for this story.
Should anybody else encounter this problem and land on this thread, I have nothing better to recommend than just doing the same: don't bother trying to fix it, move your SIM card to some older spare phone and use bluetooth tethering to bring the U11 to the internet. This will win you some time to pick a new phone without rushing, while critical things like Whatsapp, authenticator apps and so on will keep working, making it easier to migrate to the new phone.
Click to expand...
Click to collapse
I had similar situation. My battery juiced down and closed automatically. Then i plugged it to charge, waited for full charge and then opened it. Wifi and Sim were not working after booting. It was there before power is over ans it has gone after powering it back. I tried many things as factory reset wipe cache/dalvik etc. By the way I was using lineage os 17.1 for a few months.
The only thing that worked was flashing original stock rom via download mode. after this i got sim working back but no wifi still. now i am using it as a spare phone with only mobile internet connection.
I showed it to a few repairmen but they told me it is onboard wifi at motherboard of phone and they can't fix it without replacing motherboard which is quite expensive nearly as a new phoe.
If anyone know how to bring wifi back please tell me too.

bluellay said:
I had similar situation. My battery juiced down and closed automatically. Then i plugged it to charge, waited for full charge and then opened it. Wifi and Sim were not working after booting. It was there before power is over ans it has gone after powering it back. I tried many things as factory reset wipe cache/dalvik etc. By the way I was using lineage os 17.1 for a few months.
The only thing that worked was flashing original stock rom via download mode. after this i got sim working back but no wifi still. now i am using it as a spare phone with only mobile internet connection.
I showed it to a few repairmen but they told me it is onboard wifi at motherboard of phone and they can't fix it without replacing motherboard which is quite expensive nearly as a new phoe.
If anyone know how to bring wifi back please tell me too.
Click to expand...
Click to collapse
yes, this can be fixed, i had the same problem coming back to stock from los 17.1, you need to downgrade to oreo then let it update to pie, but it depends on the phone you have, mine is us unlocked, there is a tutorial here somewhere on how to do it. look see if you have a wi fi mac address if it's 2x.00.00.00.00.00, it same as i had.

Aldo101t said:
yes, this can be fixed, i had the same problem coming back to stock from los 17.1, you need to downgrade to oreo then let it update to pie, but it depends on the phone you have, mine is us unlocked, there is a tutorial here somewhere on how to do it. look see if you have a wi fi mac address if it's 2x.00.00.00.00.00, it same as i had.
Click to expand...
Click to collapse
Yes i have same wifi mac address as 2x.00.00.00.00.00
Thanks for advise, i will try it. Can you refer me a manual for this downgrading? I looked to forums but there is a problem that says it can't be done if it is s-on. I unlocked bootloader before installing los 17.1. Also they say it can only be downgradable from oreo to nougat. So, if you can share a guidance for how to do downgrade from pie to oreo when s-on, it would be grade.

bluellay said:
Yes i have same wifi mac address as 2x.00.00.00.00.00
Thanks for advise, i will try it. Can you refer me a manual for this downgrading? I looked to forums but there is a problem that says it can't be done if it is s-on. I unlocked bootloader before installing los 17.1. Also they say it can only be downgradable from oreo to nougat. So, if you can share a guidance for how to do downgrade from pie to oreo when s-on, it would be grade.
Click to expand...
Click to collapse
here's what i did:
1. connect the phone to pc and boot into bootloader
2.flash hosd_signed.img (fastboot flash hosd hosd_signed.img) this has to be the hosd for your software
3.once done boot into TWRP and rub the HTC dev info tool
4.change the version number into 2.42.617.7(this is for us unlocked)and hit save apply all changes'
5.run the oreo RUU for your phone.

Where can i find the hosd file?

bluellay said:
Where can i find the hosd file?
Click to expand...
Click to collapse
https://drive.google.com/file/d/1UP41sN_2AYE92-jFNwyAFpBhBC1pDzCv/view?usp=sharing
that is for us unlocked, if your phone is not us unlocked i don't have another hosd.

So I was able to solve this problem by flashing the oreo RUU from htc, then flashing twrp, complete wipe, and restoring a previous LOS 10 backup. Now my wifi is restored, and mobile data is back to normal.

Aldo101t said:
https://drive.google.com/file/d/1UP41sN_2AYE92-jFNwyAFpBhBC1pDzCv/view?usp=sharing
that is for us unlocked, if your phone is not us unlocked i don't have another hosd.
Click to expand...
Click to collapse
My phone is an unlocked model which is from India I think. It is ocean dugl model. Can I use this host file safely?
---------- Post added at 08:42 AM ---------- Previous post was at 08:38 AM ----------
mario182005 said:
So I was able to solve this problem by flashing the oreo RUU from htc, then flashing twrp, complete wipe, and restoring a previous LOS 10 backup. Now my wifi is restored, and mobile data is back to normal.
Click to expand...
Click to collapse
Can you tell more detailed instrustions for how to do it?
I have got los 17.1 backup. when I tried to flash it with twrp it seems flashing but after finishing phone restarts and nothing changed. I tried many times. I got backup but it does not flashing back. What could be the problem?

bluellay said:
My phone is an unlocked model which is from India I think. It is ocean dugl model. Can I use this host file safely?
---------- Post added at 08:42 AM ---------- Previous post was at 08:38 AM ----------
Can you tell more detailed instrustions for how to do it?
I have got los 17.1 backup. when I tried to flash it with twrp it seems flashing but after finishing phone restarts and nothing changed. I tried many times. I got backup but it does not flashing back. What could be the problem?
Click to expand...
Click to collapse
you need to pull the hosd from an oreo ruu for your phone, if there is one.what ever the software number is.

@ Aldo101t
what do you mean: "3.once done boot into TWRP and rub the HTC dev info tool"

Black Antitoon said:
I have a very similar problem, however I am and have always been on stock ROM. Yesterday suddenly my phone lost wifi and telephony connection. It was just there, sitting on my desk, one minute it was working and I was checking my e-mail, the next one it was not. The phone now detects no SIM card and if I try to enable wi-fi it just hangs in "enabling" status for some time until it gives up and disables it again.
I think it might be some hardware or low-level issue, even if I am having a hard time how anything could happen while my phone was sitting on the desk. Next step is a hard reset and if it doesn't, then there is no hope left I think.
Your symptoms are similar, even if it happened after flashing. The only thing which I hope might help you is that, assuming that your situation is comparable to mine, if you manage to get past that screen or to access the Bluetooth settings, you can probably connect the phone to the internet through Bluetooth tethering. Once you are connected to the internet, many things are easier. Also, is that blue screen the one forcing you to sign in to a previously synced account (factory reset protection)? If so, there used to be a loophole in this, there are several youtube videos about it which you can easily find. Perhaps it's still there.
EDIT: Sorry for the necroposting, for some reason I overlooked the date of the original post.
Click to expand...
Click to collapse
@ Black Antitoon, Read your problem of WiFi and Sim Signal not working. I'm also facing the same issue, exactly a similar one, without doing anything it just happened. Would like to understand if you have got any solution. Thanks in advance

abhi2301 said:
@ Black Antitoon, Read your problem of WiFi and Sim Signal not working. I'm also facing the same issue, exactly a similar one, without doing anything it just happened. Would like to understand if you have got any solution. Thanks in advance
Click to expand...
Click to collapse
@abhi2301: sorry for answering so late. Unfortunately I couldn't fix this problem. I kept using the phone for two months after moving my SIM card to a spare phone and connecting the U11 to the internet using Bluetooth tethering, which was the only thing that worked. I kept hoping that at some point connectivity would start working again, but that wasn't the case. I eventually gave up. Sorry for not having better news.
As you probably read (from post #13 on), other users had better luck by flashing a RUU, hope this can work for you too.
Cheers

I ran across this post and it fixed my issue regarding no wifi,
My u11 encrypted? lost wifi and mobile signal, after restore rom, it bricked
Please check the pictures: short story first: after reset the ROM with recovery mode, the u11 can go through the encrypting screen, then it will loop and stuck in the setup screen. I didn't really encrypt my phone ever, I only had a simple...
forum.xda-developers.com

hammered58 said:
I ran across this post and it fixed my issue regarding no wifi,
My u11 encrypted? lost wifi and mobile signal, after restore rom, it bricked
Please check the pictures: short story first: after reset the ROM with recovery mode, the u11 can go through the encrypting screen, then it will loop and stuck in the setup screen. I didn't really encrypt my phone ever, I only had a simple...
forum.xda-developers.com
Click to expand...
Click to collapse
So which one is your solution of all the messages in the post? Can you copy paste the message?