Develop Bugs

umts signal strength problem after flashing a qtek9000

hi everybody!
i have a big problem with my principal's qtek9000.
maybe you can help me finding a solution.
after i upgraded the latest official qtek italian rom in september 2006, umts signal strenght became very poor, sometimes inexistent.
gsm signal strength was right.
i tried flashing various radio module versions, from 1.03 to 1.13, but unsuccessfully. also i tried some full rom flashing (rom,extrom,radio).
signal strength never changed. always poor.
we sent it to qtek assistance.
after a month, it came back.
assistance said that antenna was "repositioned".
there was the same latest official qtek rom version.
umts signal was good, but not so good like before flashing rom.
but it worked.
so my principal told me to flash it to try to improve signal strength.
yesterday i upgraded only the radio module from 1.09 to 1.13, without rom and extended rom, and it happened again...
umts signal strength now is poor, on inexistent, only gsm signal.
so i don't think it's an hardware problem, but a software problem.
i tried with different SIM from different operators.
when i boot up phone, initially signal strength is 4/4 level (we are very close to BTS), after 10 seconds it breaks down to 2/4 level, then the maximum strength is always 2/4 when we are close to the BTS. no more. often umts signal disappear and i have only gsm signal (with 4/4 level!).
i have an imate jasjar, and i flash it almost 2/3 times a month , i like trying new unofficial roms so i don't have problems flashing it, and i never had signal strength problems after rom i flashed my jasjar.
far from it! with every new radio module signal strength increased.
my principal bought its qtek9000 in december2005, i bought my jasjar on august2006.
i don't know what to do. i'm in despair.
can you help me trying to understand where's the problem with that f***ing qtek?
or i have to send it again for another month to assistance.
i think i will do it again, but i want to understand what is the problem, because i think it's surely a software problem, and not an hardware or antenna problem, that can be solved with some kind of flashing or something else.
thank you guys!

[Q] Bad Reception Madness

Hi all,
I have bought a couple Motorola Defy [T-Mobile - unlocked] from NegriElectronics and the phone is a great phone. The Big problem that I am having is that the signal strength that this phone is showing is always VERY low as compared to my T-mobile G2 that I also bought from negri and unlocked.
The first defy i left it at stock 2.1 @ 2.34.1
The other defy I flashed 3.4.2-155-2 Motorola SBF with RSD Lite.
The flashed defy show a 4dBm increase to the original but it still crappy
Everything in the phone works, and it is fast. But the Bloody reception drops to one bar and sometimes go into Emergency Call Mode.
I'm in Trinidad in the Caribbean and it is not the sim or the carrier because i placed the sim in my G2 and it gets full bars.
What can I do to improve the reception on my Defy's?????
THANKS

I had same problem. This fixed it.
http://forum.xda-developers.com/showthread.php?t=944258

I hope UNRAFA's solution works for you, but if it doesn't... just because your SIM works in the G2 doesn't necessarily mean it will work in the Defy. Not sure why. When I bought my Defy I had recently upgraded my SIM and it worked for a while -- then went off the rails reception-wise. T-Mo had me upgrade to a uicc SIM and that solved the problem. At least for me.

Actually the Chinese had made a baseband switcher apk which collected nearly 20 baseband settings of various defy roms worldwide. Unfortunately it has no English translation.

Hi All,
It has nothing to do with the sim (I am sure) and the Chinese application i cannot read
Is there any other tweaks that I can do to help the reception?

Seriously, the link i gave you contains all the information, the basebands, BaseBandSwitcher.apk to install and do it with a click, every option is in chinese but it got a number next to it matching the firmware version, and i think its prety much universal numbers and easy to guess, but yet a translation of every option of the program has been posted..
And yes, there are other options to get better 3g editing build.prop but despite good reports from people, that has not been proved to actually increase 3g speed and i wouldn't recommend doing that.

Compared to my Samsung Vibrant 2G reception was very poor out on rural interstates, but perfectly fine in the city and it has much better 3G reception than the Vibrant. I think there was a problem with my original.. I got a new one and I will be testing it out soon.

Ok, I see the baseband thing you were talking about, tried it, but i seem to get an increase of 4dBm on the signal
BTW, there is NO 3G here, just 2.5G/EDGE, hence I dont really care about the Internet speed. I just need a better reception.
I compared this phone to the 3 Nokias in the household and all the nokias were showing 5 bars, while the Defy was at 2
Something is really messed up with this. Is there any way to manually increase the tX and rx power of the radio ????
I'm on Pays 5.0 and still not much difference with the new radio/sbf

Baseband 3g fixes, not only fixes 3g speed, it fixes reception too. Just apply the fix for your country and you are done, theres also ZERO danger for your phone, you can apply patches one over another untill you get the one that best works for you.
An easy test is switch between "2g only , or 3g only" and watch reception bars for voice calls. If you have 3g slow speed or bad reception, you need a patch.

RE: On Chinese baseband switcher apk
Yo folks,
Check out
http://forum.xda-developers.com/showpost.php?p=12040851&postcount=71
I guess this translation is better then nothing right.
FYI I already tried it, seems there's some improvement but not that significant, but hey every region has different network quality right?
Ciao

Of course... you could have a bad phone.

Is anyone else having signal issues? Possible baseband update?

I recently purchased a samsung captivate glide and I have noticed very spotty coverage and dropped cell connections. Whenever I am indoors I cannot get a signal. The cell reception is very sensitive and constantly shows no connection. I was unsure if anyone else was having this problem?
I found another thread that had a loose sim card issue and attempted the fix but this did not work. I've also tried my sim in another phone in which i had no problem with cell reception. I've relashed the ROM and Kernal multiple times, rooted, unrooted, nothing seems to fix my reception issue... I was not sure i there was a baseband update or I just have faulty hardware. I'm eager to get this phone working at full capacity. How can I get it working properly?
Pertinent Info:
Android Version 2.3.5
Basband Version I927UCKI3
Kernal Version 2.6.36.3
Build Number GINGERBREAD.UCKI3
Carrier AT&T
Thanks in advance.

CommanderXander said:
spotty coverage and dropped cell connections
Click to expand...
Click to collapse
Sounds like status quo for AT&T
On a serious note; I am not having any such issues here in southern Louisiana where I usually don't get anything but Extended; rarely ever see 3G.

Been looking around for more information. I'm going to try and get a new sim and see what happens. Looks like i'm stuck for the time being :/

CommanderXander said:
I recently purchased a samsung captivate glide and I have noticed very spotty coverage and dropped cell connections. Whenever I am indoors I cannot get a signal. The cell reception is very sensitive and constantly shows no connection. I was unsure if anyone else was having this problem?
I found another thread that had a loose sim card issue and attempted the fix but this did not work. I've also tried my sim in another phone in which i had no problem with cell reception. I've relashed the ROM and Kernal multiple times, rooted, unrooted, nothing seems to fix my reception issue... I was not sure i there was a baseband update or I just have faulty hardware. I'm eager to get this phone working at full capacity. How can I get it working properly?
Pertinent Info:
Android Version 2.3.5
Basband Version I927UCKI3
Kernal Version 2.6.36.3
Build Number GINGERBREAD.UCKI3
Carrier AT&T
Thanks in advance.
Click to expand...
Click to collapse
Try pulling the battery cover and see if your SIM card is loose? I've advised for a couple different folks having signal issues the same thing, nobody else seems to have the same problem I did - using a smartphone SIM, it looked like the metal cage for the SIM card was a millimeter too large in width and height, I used some strong clear tape to hold the SIM in place and havent had any issues since...
HTH!
L4T
//Edit - I need to read the _ENTIRE_ post before replying - sorry, I'm fresh out of ideas if the loose SIM card wasn't the problem :\ -tidE\\

Ok I take no credit for this, but felt bad about the useless post above, crawled a couple more posts this morning, and it looks like mariol66 may have found another solution -
mariol66 said:
I kept losing data recently running osimood, went to network settings and changed carrier option from gsm/hspa to hspa only, I haven't disconnected yet
Sent from my SAMSUNG-SGH-I927R using xda premium
Click to expand...
Click to collapse
If that works for you, thank _him_, I'm just trying to get the word out
L4T

hi similar problem .have you got solved?
CommanderXander said:
I recently purchased a samsung captivate glide and I have noticed very spotty coverage and dropped cell connections. Whenever I am indoors I cannot get a signal. The cell reception is very sensitive and constantly shows no connection. I was unsure if anyone else was having this problem?
I found another thread that had a loose sim card issue and attempted the fix but this did not work. I've also tried my sim in another phone in which i had no problem with cell reception. I've relashed the ROM and Kernal multiple times, rooted, unrooted, nothing seems to fix my reception issue... I was not sure i there was a baseband update or I just have faulty hardware. I'm eager to get this phone working at full capacity. How can I get it working properly?
Pertinent Info:
Android Version 2.3.5
Basband Version I927UCKI3
Kernal Version 2.6.36.3
Build Number GINGERBREAD.UCKI3
Carrier AT&T
Thanks in advance. [/QUOTE
Recently i purchased from ebay imported to India.I got similar problem.Signal is consistently not good,even near the tower.Have anyone got similar problem solved?Please help me.
Click to expand...
Click to collapse

be more specific on your problem,is it like the person you quoted,your on 2.3.5 ect?

[Q] Which Baseband for Vodafone UK with ICS

I recently moved to the UK from Canada and have since found my Data Signal to be below average at best. I'm curious what this is caused by though and figured it's worth a question before wiping everything on my phone over and over.
I was running a JJ ICS rom (Hydbrid 1.1) on BB .70 and it's been great up until the move. Data always had a strong signal when it was on and never any dramas.
Now I'm on Vodafone UK and have a Data allowance (that I'm definitely not close to reaching yet) and it seems incredibly unreliable. The signal drops from H to E quite regularly and even loses signal completely sometimes. Is it just that Vodafone doesn't have very good data reliability?
I'm beginning to think maybe it's more related to Baseband though? Is it worth wiping everything for a generic UK rom and baseband to see what happens or does anyone know of something a little less drastic I might be able to try. I'm all ears...
Thanks for any help anyone has in advance!

all ics roms should work with baseband 70?

So maybe I've got no choice but to try and wipe to generic and see if that makes a difference or not?
Anyone else have Vodafone UK and any issues or non-issues?

radio upgrade?

hi guys, im in the u.k and owened this phone for over a year..
just wondering if there are any radio upgrades available for this phone as the reception is seriously poor, now im not sure if i was just unlucky in getting a bad handset, or if its to do with the frequencys used in the u.s & u.k. (i checked before i got the phone and the frequencys should be the same)
when im in the house i put my sim card in my old htc desire z & turn on wifi hotspot and use my glide using wifi.
so, i was just wondering if there were any tricks i can do to improve reception such as flashing a diffrent radio version?
thanks people..
james.