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[Q] Desire S loosing signal

Hi all,
A week ago I bought a brand new Desire S and installed latest CM 7.1 stable following the guide on cyanogemod Desire S Wiki using revolutionary 0.4pre4. Everything was smooth and nice, I flashed ROM and GAPPS and my phone is working absolutely perfectly... but there is one little problem...
I am using Desire to fetch my mails from 2 mailservers using IMAP every 30 mins. But when the phone is switching between network modes i.e. HSDPA -> EDGE or EDGE -> GSM or any other way, I am disconnected from operator network for about 10 seconds until the network mode changes and everything is fine after that, until there is another network mode switch.
This happens for me about 10 times a day, so my phone sometimes appears that It is turned off for people who want to call me. Immediately after connecting to network I get a missed call SMS from my operator.
Interesting thing is, that when I disable email fetching, disable background data transfer and disable network data, the phone works fine without "blackouts".
Can someone help me with this problem? Maybe a radio issue?
Some more info:
ROM: Cyanogenmod 7.1.0 Desire S
Recovery: Revolutionary CWM v4.0.1.4
HBOOT: 6.98.1002
Kernel: 2.6.35.14-cyanogenmod+ [email protected] #1
Radio: 20.28I.30.085AU_3805.06.02.03_M

There is a newer radio-file online.
Maybe it's solving your problem.
I'm using MIUI and never had such problems, but i'm interested in flashing CM, so please report if the problem is gone by flashing newer radio!

Which radio version are you using?
Today I am testing 2G only switch so I am on EDGE data only.

Flashing radios is safe......, but a bad radio flash will instantly brick your phone.
You are using 1.47.401.4 radio, try updating to the 2.10.401.5 one.

Thanks for reply.
Shoud I flash something else with the radio?
I have 20.4801.30.0822U_3822.10.08.04 downloaded from cmw.22aaf3.com
Another I have is ftom OTA update zip file OTA_Saga_S_HTC_Europe_2.10.401.8-1.47.401.4_release_225210fmxlt12djw1sr7y5.zip where is one radio.img in formware.zip file too - version unknown
So Which one to flash?
and if so, which method should I use to flash radio? The Android SDK one or the ZIP + Bootloader one?

MyroLM said:
Shoud I flash something else with the radio?
Click to expand...
Click to collapse
no need
MyroLM said:
I have 20.4801.30.0822U_3822.10.08.04 downloaded from cmw.22aaf3.com
Click to expand...
Click to collapse
this file is what ur looking for! check md5-checksum before flashing!
MyroLM said:
and if so, which method should I use to flash radio? The Android SDK one or the ZIP + Bootloader one?
Click to expand...
Click to collapse
Both will work, i'm using method by using bootloader normaly

Strangely I had the same issues as you on Endymion.
Then I updated radio to the latest.
It worked well.
Then I went to CM7. It was fine for a while, but now I'm losing signal with no 3G bars and its not switching automatically to 2G like it should when It has no 3G signal!
EDIT:
After really reading your post, I realise my issue is no way like yours! Yours seems really bad. Update your radio.
-------------------------------
Sent from my HTC Desire S

So, here we go with the results
I flashed 20.4801.30.0822U_3822.10.08.04, md5sum checked OK, update sucess, but phone with no signal...
I flashed 20.48.30.0822U_3822.09.08.20, md5sum checked OK, update sucess, but phone with no signal again...
I flashed 20.28I.30.085AU_3805.06.02.03 back, md5sum checked OK, update sucess, but phone with no signal again...
... what now ... ?

After each flash wiped cache and Dalvik...

in your telephone-info there is shown the new radio after every flash?
do you have removed the batterycover, because there is integrated the antenna of your device!

mouzzza said:
in your telephone-info there is shown the new radio after every flash?
Click to expand...
Click to collapse
Yes, correct number every time.
mouzzza said:
do you have removed the batterycover, because there is integrated the antenna of your device!
Click to expand...
Click to collapse
No, the cover is at its place where it should be. Somehow I did the trick and I am back online with 20.28I.30.085AU_3805.06.02.03 on 2G only for now.
I read somwhere in the forum that ENG HBOOT is required for new radios... Are you sure I dont need to flash eng hboot it before new radio ??

MyroLM said:
Somehow I did the trick and I am back online with 20.28I.30.085AU_3805.06.02.03 on 2G only for now
Click to expand...
Click to collapse
in your area 3g is actually available?
may it helps to go outside, to find your net for the first time!
did you set an accesspoint for 3g?
may you have to set automatic settings, rather than 3g/2g-only?!
MyroLM said:
I read somwhere in the forum that ENG HBOOT is required for new radios... Are you sure I dont need to flash eng hboot it before new radio ??
Click to expand...
Click to collapse
using same hboot as you, never had problems on flashing radio-files!

yes, in my area there is 3g, when I turn off 2g only switch there is a problem described in my first post, so i am on 2g for now just to keep phone connected to network.
main problem is when i am driving and the phone is switching network modes.
so I give 20.4801.30.0822U_3822.10.08.04 today another chance, try to flash if again.
but i am woried about stucking on HTC logo after flash :-( and brick it.

MyroLM said:
but i am woried about stucking on HTC logo after flash :-( and brick it.
Click to expand...
Click to collapse
i already had the problem for several times, and i also pulled out the battery (you shouldn't do that)!
only had to boot into bootloader, start recovery, wipe all partitions, flash rom and was having fun again with my device
this thread could help you, if really stuck on HTC logo
For your real problem on loosing the signal, did you ever tried out using actual stock rom, or another custom one like MIUI?
i used MIUI from 2010-08 till yesterday, now trying out CM7.1 for some days

I have the same or a very similar problem. I have the stock rom.
I already had 3 different desire s motherboard's and 2 different display's.
The first Desire S i had, with android 2.3.3, had a excellent signal. Due some problems i had, the phone bricked and had to go to HTC to repair.
HTC replaced the motherboard and update the version of the android to 2.3.5 and ever since the signal caption, the signal switch was working very bad.
The phone went to a second repair because of this, new phone, and again with android 2.3.5. The problems persisted.
I also tested with different SIM cards, from different mobile operators.
So, my conclusion is either android 2.3.5 or this new versions of Desire S have problems with signal caption and signal switch.
So as you, i need some help with this issue!

mouzzza said:
i already had the problem for several times, and i also pulled out the battery (you shouldn't do that)!
only had to boot into bootloader, start recovery, wipe all partitions, flash rom and was having fun again with my device
this thread could help you, if really stuck on HTC logo
For your real problem on loosing the signal, did you ever tried out using actual stock rom, or another custom one like MIUI?
i used MIUI from 2010-08 till yesterday, now trying out CM7.1 for some days
Click to expand...
Click to collapse
But when I reboot to recovery it will flash the radio again I think.
i hate stock roms, and dont like MIUI design That is why I am using Cyanogen
Anyway if I use 2G only switch, the phone is stable as rock both calls and data transfer.
EDIT: OK, flashed 20.4801.30.0822U_3822.10.08.04 sucessfully, signal OK, I will see what happens whet metwork mode switches

@Green Hawk:
give us more information about your device please, which radio you're using? Did they flash actual radion also?
@MyroLM:
report if the problem is still there or it's gone with flashing the rom

I am still testing new radio, but looks good Give me some days let you know...

Hi All,
I have a similar problem with the latest CM7.1 nightly builds (Reaper, jorgen2009). I never saw this with older CM7.1 versions, e.g. Nexx version, ICS, MIUI oder Endymion.
I have WLAN on and leave my house. Phone switches to 2G/3G..., so far so good. When I return home, The WLan sign in the status bar appears again, everything seems to be fine, but I have no connection. I get no data via WLan until I swicth WLan off and on again.
Radio is the latest from 2.10.401.5.
Best Regards
Wrapp

Had similar problems, upgrading to the latest radio helped. I got stuck on the HTC screen and I went through flashing RUU's and unlocking bootloaders back and forth... when the only thing that needs to be done is to wipe the cache.
Learned a lot about bootloaders though. But my warranty got void because i did the htcdev unlock... (Sorry for OT)

Need Help. Have data but no phone signal after screwing up.

Ok, so here is the story of how I screwed up. And the situation
1) I was running firmware 3.33 with viper ... everything was ok
2) Decided to try bruce's CM10... everything ok
3) Copule of days later I decided to flash the old RIL I was using with CM9 + firmware 3.33 and used to work ok.... big fail. Radio stoped working
4 )full wipe, flashed firmware 3.32 and Bruce's latest build... the phone booted ok, but still radio wasn't working
5) full wipe, flashed firmware 3.33 and Bruce's latest build... the phone booted ok, but still radio wasn't working
6) full wipe, flashed viper .... I intermittently get data but no phone signal... WTF?
Before someone asks... yes.. I was always veryfing checksums when flashing different firmwares.
Any Advice?
Is it possible that I broke something? Maybe the SIM card?
what do you think guys? Please Help!

have the same problem, was running ARHD with no problems, then using bruce CM10.
I didnt like it, so i changed back to ARHD.
Now i flashed Viper-Rom, and my Radio is broken

Try flashing a generic ics radio and ril this should help restore your data. I lost data once by flashing a recommended radio for a Rom I was running and I restored my data by flashing a generic ics radio and ril. Fixed this issue for me. You might want to give it a try .I think it will help. Best of luck.
Sent from my Sensation Z710e using xda premium

Could i just flash 3.32 and then flash Viper?
what is "ril"?

*#*#4636#*#* on dialer then phone information and verify what network mode is it on (it should be GSM/WCDMA auto)

dont know what happend, i flahed ARHD, but did a superwipe before.
Now the Radio works. only have to get wifi better, is there a fix for that?

Wifi issues

Hello all,
I've a problem with wifi in my Desire S and actually I don't know if it's software or hardware related. The problem:
Wifi switch is On, but no network scans at all, sometimes networks appear, but just for two, three seconds, and then no networks again. The process is: I turn wifi switch on, messages of: Turning wifi on, scanning..., on, disconnected, no networks available.
Wifi hotspot don't work either. Everything else is working perfectly
Related info:
HTC-Dev unlock, then S-OFF.
Current ROM: Fallout Evolution V5.0.0 ROM
Kernel: TWEAKED VERSION 6.0 - for Sense 4
H-Boot: 7.00.1002 | Reengineered 2.00.002
Radio: 20.76.30.0835U_3831.19.00.110
Kernel & radio flashed through fastboot flash, hboot, firmware in bootloader with PG88IMG
Tried almost everything, from wipe all three and four times, reinstall everything, to remove revolutionary and get stock HTC RUU again, neither of them worked.

Might be a rom problem, go ask the dev of the rom that you are using. Check the "bugs" list.
If problem persists, i suggest to ruu. Properly. If it is still doesnt work, then its a hardware problem.
Sent from my HTC Desire S using xda app-developers app

Skanob said:
Might be a rom problem, go ask the dev of the rom that you are using. Check the "bugs" list.
If problem persists, i suggest to ruu. Properly. If it is still doesnt work, then its a hardware problem.
Sent from my HTC Desire S using xda app-developers app
Click to expand...
Click to collapse
Thanks, then it's probably a hardware problem, because I tried RUU and different roms.

If you're on latest fallout version you should use the fallout kernel that comes with the ROM.
I'm on a very similar setup and have no issues, not that that helps you.
To completely rule out the ROM then I'd suggest
take a backup
Full wipe
Install different stock based ROM and associated kernel
Re test
Sywepd form my DsereiS

could it not be a radio problem? when I had that radio I got a big battery drain. Not that that is the same as your symptoms, but it might show that this radio does not seem to work very well for every device or setup. Maybe try ur old radio just to rule it out?

[Q] WiFi won't work, CWM 10.1 JellyBean 4.2.2

I have flashed the CWM 10.1 JellyBean 4.2.2 ROM, and so far everything except WiFi works.
The WiFi turns on but then it keeps saying 'Searching for WiFi Networks' and it stays like that.
I have reflashed the ROM a few times and it still doesn't work.
Link to ROM
http://forum.xda-developers.com/showthread.php?t=2115520
I hope someone can help me, I'm new to this, first time flashing a ROM.
I'm asking this here because it seams I don't have permission to post on the thread I linked to above.
HTC Sensation XE
BootLoader Firmware 3.33
Hboot 1.27.1100
Radio 11.24a.3504.31_M
4EXT Recovery Touch v1.0.0.5 RC5

Try a different kernel. Like this one: http://forum.xda-developers.com/showthread.php?p=35167538
Sent from my Ouya

AndroidSupporter318 said:
Try a different kernel. Like this one: http://forum.xda-developers.com/showthread.php?p=35167538
Sent from my Ouya
Click to expand...
Click to collapse
or flash the boot.img of the rom manually

AndroidSupporter318 said:
Try a different kernel. Like this one: http://forum.xda-developers.com/showthread.php?p=35167538
Sent from my Ouya
Click to expand...
Click to collapse
rzr86 said:
or flash the boot.img of the rom manually
Click to expand...
Click to collapse
or why not just setting a region code like I do?
go to wifi advanced settings and set a region code, whatever you like except europe, then go back and immediately turn on wifi, don't do anything extra like going back a step more. if it worked in this way, you have to do this every time after every reboot.

Try flashing 2-3 different roms like sense 3.6 and sense 4.1 roms and check if wi-fi is working. If yes then it is a kernel problem..try flashing a kernel suitable for jb roms like cm10.1 and the wi-fi should be back in action.
I'd like to give a simple recommendation: When you first boot into the welcome screen just after flashing an asop rom and gapps, the phone will search for wi-fi networks to log into the google account. Connect to wi-fi at that time and the phone will save your wi-fi configuration permanently (at least until you reflash a rom)
Hope it helps :good:

Problem with WiFi , Bluetooth...etc

Hey guys m facing some problem from past two days
I was running revelation from last week , everything was working
and now I flashed arhd 7.3 two days ago and suddenly Bluetooth , WiFi , WiFi hotspot Stopped working
It stuck on " Turing on "forever
And after some time WiFi gives error
Today I restored my stock 4.03 Rom backup but still same problem:what:
Help me plz
How to make them work
Sent from my HTC

Screenshots
Sent from my HTC

Itsakash said:
Hey guys m facing some problem from past two days
I was running revelation from last week , everything was working
and now I flashed arhd 7.3 two days ago and suddenly Bluetooth , WiFi , WiFi hotspot Stopped working
It stuck on " Turing on "forever
And after some time WiFi gives error
Today I restored my stock 4.03 Rom backup but still same problem:what:
Help me plz
How to make them work
Sent from my HTC
Click to expand...
Click to collapse
Most likely kernel issue. Do a backup, then full wipe except sdcard and flash a new rom (or restore a working backup)
HIT THAT THANKS BUTTON.
Happy to help.

Mate I restored stock Rom backup ( stock HTC Rom + kernel without any change )
Plus I flashed arhd 7.3 with stock kernel and Sebastianfm kernel
And arhd 6.8 with stock kernel , elegancia blitz 3.9 with stock and Sebastian kernel
With no success
Sent from my HTC

Itsakash said:
Mate I restored stock Rom backup ( stock HTC Rom + kernel without any change )
Plus I flashed arhd 7.3 with stock kernel and Sebastianfm kernel
And arhd 6.8 with stock kernel , elegancia blitz 3.9 with stock and Sebastian kernel
With no success
Sent from my HTC
Click to expand...
Click to collapse
Like I said, either you could try and fix your radio: See this http://forum.xda-developers.com/showthread.php?t=1202867.
Also, get GetRIL from play store and update you ril first.
But before that, I still recomment you do a full wipe except sdcard and reflash rom (not restore). Just to get it out of the way.

Far_SighT said:
Like I said, either you could try and fix your radio: See this http://forum.xda-developers.com/showthread.php?t=1202867.
Also, get GetRIL from play store and update you ril first.
But before that, I still recomment you do a full wipe except sdcard and reflash rom (not restore). Just to get it out of the way.
Click to expand...
Click to collapse
I reflaahed Rom lot of Times with sd card wipe too
Now m gonna try getrill
Update
Tried get ril
It shows unknown ril
Sent from my HTC

flash the boot.img of the rom manually
via fastboot command

rzr86 said:
flash the boot.img of the rom manually
via fastboot command
Click to expand...
Click to collapse
Y ??
I have s off sensation
No problem in flashing Roms
And few hours ago WiFi , Bluetooth , WiFi hotspot starts
I used WiFi for 10-15 min and turn it off..
And again when I try to turn on they keep turning on....
Sent from my HTC

Itsakash said:
Y ??
I have s off sensation
No problem in flashing Roms
And few hours ago WiFi , Bluetooth , WiFi hotspot starts
I used WiFi for 10-15 min and turn it off..
And again when I try to turn on they keep turning on....
Sent from my HTC
Click to expand...
Click to collapse
go to system->etc->wifi and delete the wpa_supplicant.conf file
but first copy it to the sdcard just in case

rzr86 said:
go to system->etc->wifi and delete the wpa_supplicant.conf file
but first copy it to the sdcard just in case
Click to expand...
Click to collapse
And what about Bluetooth , WiFi hotspot??
Btw problems r solved now
I did nothing and able to on all things
Don't know what was happend
Sent from my HTC