What is the Radio for the X1 ? - XPERIA X1 General

In few threads i can read about X1 radio what is is ?? i know that the x1 have a rds radion in built but what is the download ?? PLS HELP ME i am a NOOOOOB at windows mobile.
thanks for all the people that can help me !!!
i mean this "IV - TRANSMITTER RADIOS" for the x1.
and sry for my english its only that what ive learnt in the school....

If you are talking about the Radio Panel to listen to FM radio stations then that should come pre-installed on your X1 and is usually located on the 6th panel. If it is not there then you can go to the panel manager settings and make it visible through there.
However, if you are talking about the GSM Radio version of the X1 then that is built-in within the ROM when the device is flashed and something that should not be played with unless you know what you are doing.
I hope this helps!

thx for the answer but in few threads you can download an
IV - TRANSMITTER RADIOS
XPERIA X1 RADIOS
- Radio 0.93.25.02 - prototype
- Radio 1.06.25.29
- Radio 1.10.25.18
OTHER RADIOS Hex-edited, adapted and tested on a security-unlocked Xperia
- FUZE Radio 1.02.25.27
- DIAMOND Radio 1.09.25.23
- BLACKSTONE Radio 1.08.25.23
- BLACKSTONE Radio 1.10.25.25
- RAPHAEL Radio 1.01.25.16
- RAPHAEL Radio 1.02.25.32
- RAPHAEL Radio 1.08.25.20M1
- RAPHAEL Radio 1.02.25.28
NEW - RAPHAEL Radio 1.11.25.01 - Tested: It may not update the "Radio Version" on a security-locked Xperia but flashes OK
whats that ? only a firmware update of the in built radio ?? the overline says transmitter radios whats that
did you mean its good to download ?
thx

Hi SaAlWe, these "radios" are the software which controls how your device talks to the cellular network for voice and data. I also believe it controls wi-fi as well.
The original Xperia X1 radios are designed specifically for the X1, the others are taken from similar devices which are made by HTC who also made the X1 for SE.
Flashing a new radio will only change the radio, and "usually" doesn't affect anything else, although as always, YOU take the risk!
I haven't yet changed the radio on my X1 as it works fine, but I have changed it on other HTC devices with some good results of improved signal and less battery usage.
Hope this helps.

remember to backup anything first before flash radio rom, it will deletes all things on phone... i know because i did it just now no one telling me doing radio rom will hard reset phone at the same time...

How strange, I've flashed the radio rom plenty of times on other HTC devices and it didn't alter anything, forget causing a hard reset!
Thanks for the heads-up foxcheng, it takes me ages to rebuild all my apps and settings after a hard reset, so I won't change my radio now.

BadTasteUK said:
How strange, I've flashed the radio rom plenty of times on other HTC devices and it didn't alter anything, forget causing a hard reset!
Thanks for the heads-up foxcheng, it takes me ages to rebuild all my apps and settings after a hard reset, so I won't change my radio now.
Click to expand...
Click to collapse
Absolutely positively 100% NO: UPGRADING YOUR RADIO ROM WILL NOT DELETE ANYTHING BUT THE PREVIOUS RADIO FIRMWARE
I've flashed TONS OF RADIOS (testing, editing, comparing...) and NEVER lost a single bit of my data
Please check the RADIO'S THREAD if you want to learn more about this topic

Thanks gtrab, I've never had a problem with my other HTC devices, so was thinking of trying a new radio at some point, until I read foxcheng's post which scared me off.
However, if you've done it lots of times on the X1, I'll give it a go.

BadTasteUK said:
Thanks gtrab, I've never had a problem with my other HTC devices, so was thinking of trying a new radio at some point, until I read foxcheng's post which scared me off.
However, if you've done it lots of times on the X1, I'll give it a go.
Click to expand...
Click to collapse
Go ahead, and PM me should you require any help

t-mobile USA 3G
BadTasteUK said:
Hi SaAlWe, these "radios" are the software which controls how your device talks to the cellular network for voice and data. I also believe it controls wi-fi as well.
The original Xperia X1 radios are designed specifically for the X1, the others are taken from similar devices which are made by HTC who also made the X1 for SE.
Flashing a new radio will only change the radio, and "usually" doesn't affect anything else, although as always, YOU take the risk!
I haven't yet changed the radio on my X1 as it works fine, but I have changed it on other HTC devices with some good results of improved signal and less battery usage.
Hope this helps.
Click to expand...
Click to collapse
does this mean that *IF* we can take the rom and radiofrom the "touchpro2" from T-mobile, we can POSSIBLY recieve 1700/2100 3G band for the X1a?

Related

Which HTC Universal Radio version is the best?

Currently,
I'm using the Radio version 1.04.20 on my Dopod 900 (HTC Universal). However, my reception is not too good and it usually takes some time for my phone to catch on with the network after a hard/soft reset.
Can anyone recommend which Radio version is the best so far, in terms of reception strength and stability?
Many thanks!
If you don't use Universal while driving, change to 1.08.00, otherwise stay as you are (this is my opinion).
1.08.00 seems to have some problems with the handover between GSM cells.
using 1.6 without any pb at the moment
1.08.00 gave me problems switching between WiFi and GPRS connections only remedied with soft resets, blah...I went back to 1.06.
I just upgraded to 1.06.00. There is less delay in connecting when I answer the phone.
I see. Many thanks.
So it seems that Radio 1.06.00 is the most stable then?
Another question, the updates for Radio version, are they all generic for all HTC Universal sets, or must I find one specifically customised for my Dopod 900?
Hi,
You should be able the flash the rom into your Dopod without any problem. I have an Exec and have flashed the radio rom (1.06) last week that come from T-mobile in Germany. Nothing to complain about it yet! Works great! Check out the below link. You will be able to download the radio from there and lots of FAQs in there.
Hope this will be useful for you!
http://forum.xda-developers.com/viewtopic.php?t=38954
Regards,
Johnnie
johnnie82 said:
Hi,
You should be able the flash the rom into your Dopod without any problem. I have an Exec and have flashed the radio rom (1.06) last week that come from T-mobile in Germany. Nothing to complain about it yet! Works great! Check out the below link. You will be able to download the radio from there and lots of FAQs in there.
Hope this will be useful for you!
http://forum.xda-developers.com/viewtopic.php?t=38954
Regards,
Johnnie
Click to expand...
Click to collapse
I have flashed bmy Dopod 900 it is much better than 1.04.20 after upgrade i do not have any calls gettting dropped / It rings with in 3 rings & blue tooth audio quality is also much better strongly recco it.
Conchas said:
If you don't use Universal while driving, change to 1.08.00, otherwise stay as you are (this is my opinion).
1.08.00 seems to have some problems with the handover between GSM cells.
Click to expand...
Click to collapse
Interestingly, I would say that I've noticed the opposite with regard to data - 1.06 seems to drop a data connection on the move, more than 1.08.
Cheers,
Steve.

noobie time..

Ok..srry to sound dum..
I got for 'bout 2 years now a ppc, i first started with HTC Wizard and now I have the HTC Hermes..
But now I started with tweaking and messing around with my HTC Hermes..
what I wanted to know is;
what is radio (version) what does it do and what is it? kan you tweak it or what ever..
and whats with protocol (version)?
and..got another question..Do you think, if I change my ROM in WM6 I will lose my product guarantee?
Ok..i might sound stupid..but one has to start somewhere..
so..
Try starting with the WIKI!!!!!!!
I didnt find anything 'bout Radio
OK, Here is some short cut for you. http://forum.xda-developers.com/showthread.php?t=295751
I recomend you use the search function and do some more reading before you post, or someone will flame you. PS. welcome to XDA
ok..ive red wiki and I cant find what Radio is for and what it does..ok ok..srry if i irritate you with my question but I think you dont knew everything in the beginning..so could you help me..
Bram87 said:
ok..ive red wiki and I cant find what Radio is for and what it does..ok ok..srry if i irritate you with my question but I think you dont knew everything in the beginning..so could you help me..
Click to expand...
Click to collapse
A Radio description for the non-technically minded
The radio is the bit that sends and receives the signals to make the phone part of the device work. A poor radio and you might get poor signals received or transmitted. Hence some folks think that upgrading the radio will improve phone reception or that certain phone bands will be handled better by certain radio roms. Upgrading is not a novice activity. (So it does not mean the device has a radio to listen to radio stations!! - though come to think of it you can stream radio stations over the net using the radio, but you get what I mean).
If you want a bit more in depth detail:
http://wiki.xda-developers.com/index.php?pagename=Hermes_ExtractedRadioRoms
Mike

Bad reception/signal after ROM upgrade? Try Murata Radio ROM!

Here are the files which brought some people's Touch Cruise back to life.
Warning: Don't forget to HardSPL before using these!!!
---
This is all the stuff you need:
Murata Radio-ONLY ROM:
http://rapidshare.com/files/141524518/Radio_Murata_PPAS_1.58.21.23.rar
Custom RUU (by udK) to avoid hardreset after flashing:
http://forum.xda-developers.com/showthread.php?t=376119
---
Optional links for reading if you are interested:
Original shipped ROM by Murata Electronics:
Warning: This ROM will change your language to Russian, if you have only reception problems, use Radio-ONLY ROM above!
http://rapidshare.com/files/141527497/RUU_Polaris_HTC_RUS_1.25.411.1_radio_sign_25.65.30.04_1.58.21.23_polaris_murata_Ship.exe
----------
if you have 4 bars in 2G mode, then nothing is wrong with your reception level. 3G mode is completely different from 2G mode all together. having 2-3 bars in 3G mode is perfectly normal. 3G coverage is week in general. You have nothing to be concerned about really.
In my situation I was having 1-2 bars in 2G mode and 1-2 bars in 3G mode. (Polaris). Also, in 3G mode signal frequently was degrated to the level where radio would automatically fallback to 2G mode and stay there. We have practicaly entire HTC range at our disposal. Every single HTC phone that has been manufactured Himalaya inclusive. As soon as I have noticed week GSM signal on Polaris, I have checked few others for the same issue, namely:
Kaiser, Wings, Niki, Excalibur, Cavalier, Himalaya, Pharos, Hermes, Trinity, VOX, Herald and few others.
Also, please note: Kaiser, Wings, Niki and Polaris were running indentical radio: stock standard 1.58.21.23. we keep our handsets consistent accross the board as much as we can.
Kaiser, Niki and Wings produced excellent reception quality results with full 3-4 bars in 2G and 3+ bars in 3G mode.(UMTS 2100 and HSDPA).
I have tested on 3 GSM networks in total.
At the same time, Polaris demonstrated very concerning results in both 2G and 3G mode. (see above).
That is why I have decided to further investigate this issue.
After flashing Murata PPAS radio, Polaris receives 3-4 bars in GSM mode indoors, full 4 bars outdoors, 3 bars indoors and 3-4 bars outdoors. This is perfectly in line with other phones based on the same hardware platform: Kaiser, Niki and Wings.
I hope it helps.
P.S. At this stage I come to conclusion that there are Polaris handsets that have issue and others that have not. No matter what radio they being flashed to. This is perfectly possible if manufacturer replaced some electronic chip in newer batches of phones. This is common practice for mass production. Therefore we have conflicting reports in both polls.
bottom line is: if your Polaris has no issues with GSM reception after non-Murta radio upgrade, then it will likely to keep good reception level with any radio.
Murata radio seems to address the issue with support for specific chip only in handset and will not improve reception level for every single Polaris out there.
Please accept my appologies for such a long winded post.
mavvy4ever said:
Hi guys,
I stumbled across this thread... and it seems that there are already a few people who tried to flash the Russian ROM and after that flushing a WWE ROM without radio and they reported that their Polaris was working again after that...
I am currently a little too anxious to try out myself with my Orbit 2 but I thought it would be an idea to point this possible solution in a separate thread and for those who have tried it, please vote so we have a better overview if this is a fix or not...
[edit]
I tried the Radio-only first (after I did the HardSPL flash) but I still get only 2 bars 3G signal strength. Only outdoors it's 4 bars and when walking it's changing between 3 and 4 bars. 2G (GSM) is always at 4 bars inside and outside.
After that I flashed the complete Russian ROM but everything stays the same. Also after hardresetting the device. Even after flashing it again and again :|
Now I think I tried every option which I found on this xda forums several times... maybe any1 has another idea?
Click to expand...
Click to collapse
No need for apologies well it gives me a better feeling that my Orbit2 is not really that bad, though I remember I had better reception in original state. Currently I'm trying to figure out why TomTom does not get any satellites. I have updated latest data with QuickGPS and chose Built-In GPS...
[edit]
took about half an hour to get the initial first gps fix... but from then on, it gets the first fix within 3-5 seconds... nice
its working again
Hi guys, i flashed the radio "Radio_Murata_PPAS_1.58.21.23.rar" and since its back to full strength!
i also lost all my data cuz updating the radio also hard resets ur device;-)good luck folks and dont throw ur polaris away!
Works greaaat ! Thank you so much guys!!
Ok here is my story... I bought a Cruise but the first thing I did was to unlock it (without testing it before!). So when I tried it I thought "what this piece of ****... the reception is so bad!!" but thought it was normal so I was already thinking about selling it on eBay Then I found this forum....
I've just flashed it with Radio_Murata_PPAS_1.58.21.23 and it works like a charm now, so thank you very much!
ps: before finding this post I tried each rom radio I found! thx again!
You guys are great! I flashed the radio only Murata, and it fixed everything.
I'm an US expat working in China. The entire import industry for the Polaris shutdown these few weeks because of this problem. There will be many happy Chinese HTC dealers tomorrow. Wooohooo!
Hearty, hearty thanks!!!!!
superduper said:
if you have 4 bars in 2G mode, then nothing is wrong with your reception level. 3G mode is completely different from 2G mode all together. having 2-3 bars in 3G mode is perfectly normal. 3G coverage is week in general. You have nothing to be concerned about really.
In my situation I was having 1-2 bars in 2G mode and 1-2 bars in 3G mode. (Polaris). Also, in 3G mode signal frequently was degrated to the level where radio would automatically fallback to 2G mode and stay there. We have practicaly entire HTC range at our disposal. Every single HTC phone that has been manufactured Himalaya inclusive. As soon as I have noticed week GSM signal on Polaris, I have checked few others for the same issue, namely:
Kaiser, Wings, Niki, Excalibur, Cavalier, Himalaya, Pharos, Hermes, Trinity, VOX, Herald and few others.
Also, please note: Kaiser, Wings, Niki and Polaris were running indentical radio: stock standard 1.58.21.23. we keep our handsets consistent accross the board as much as we can.
Kaiser, Niki and Wings produced excellent reception quality results with full 3-4 bars in 2G and 3+ bars in 3G mode.(UMTS 2100 and HSDPA).
I have tested on 3 GSM networks in total.
At the same time, Polaris demonstrated very concerning results in both 2G and 3G mode. (see above).
That is why I have decided to further investigate this issue.
After flashing Murata PPAS radio, Polaris receives 3-4 bars in GSM mode indoors, full 4 bars outdoors, 3 bars indoors and 3-4 bars outdoors. This is perfectly in line with other phones based on the same hardware platform: Kaiser, Niki and Wings.
I hope it helps.
P.S. At this stage I come to conclusion that there are Polaris handsets that have issue and others that have not. No matter what radio they being flashed to. This is perfectly possible if manufacturer replaced some electronic chip in newer batches of phones. This is common practice for mass production. Therefore we have conflicting reports in both polls.
bottom line is: if your Polaris has no issues with GSM reception after non-Murta radio upgrade, then it will likely to keep good reception level with any radio.
Murata radio seems to address the issue with support for specific chip only in handset and will not improve reception level for every single Polaris out there.
Please accept my appologies for such a long winded post.
Click to expand...
Click to collapse
Yeah I extensively tested my Orbit 2 this weekend. I think I have no more problems now with it. So my vote to my own poll is actually wrong now... should be "... my 3G reception is back to normal and at full strength"
Thanks to everyone involved on Xda Dev!
At home with original rom I had 2 bars, after to Raramomo SFR and 1.64.08.21
still 2/1 bars in 3G, I have tested Murata and always 2/1 bars, so I have decided to keep 1.64.02.21 because I known its battery's drain and I known nothing about Murata.
Thanks a lot for you works
Murata radio is a life saver for wm6.1..awesome full 4 bars reception...highly recemmended for anyone have reception problems after updated their radio ..awesome
Just to clarify on this issue with low reception for some Polaris handsets:
Manufacturer has replaced some micro electronic components in some batches of Polaris.
Stock standard radio 1.58.21.23 and others has no support for those new components and therefore new handsets suffer low reception level issue.
1.58.21.23 radio Murata has support for new components included and maintains backward compatibility to earlier shipped handsets.
this radio will not affect ( improve or otherwise) reception quality for phones in older batches.
P.S. Radio is genuine.
Heyyooooo
Thank you VERY VERY VERY MUCH guys
My Polaris was born again
SecureGSM said:
1.58.21.23 radio Murata has support for new components included and maintains backward compatibility to earlier shipped handsets.
this radio will not affect ( improve or otherwise) reception quality for phones in older batches.
P.S. Radio is genuine.
Click to expand...
Click to collapse
So all new radios should be reconstructed from begining with these or similar settings?
harmsuploe said:
You guys are great! I flashed the radio only Murata, and it fixed everything.
I'm an US expat working in China. The entire import industry for the Polaris shutdown these few weeks because of this problem. There will be many happy Chinese HTC dealers tomorrow. Wooohooo!
Hearty, hearty thanks!!!!!
Click to expand...
Click to collapse
Great news, but too bad my dealer hadn't heard about it when I picked mine up. Can you please point to where you downloaded that rom and what you used to flash it? I tried the first of the two links above and the RUU is unreadable (??????)...
Thanks.
SecureGSM said:
Stock standard radio 1.58.21.23 and others has no support for those new components and therefore new handsets suffer low reception level issue.
Click to expand...
Click to collapse
My question is, why my (I got it early, I guess I have an old model) Polaris came shipped with 1.58.23.21 where the Murata Radio reads version number 1.58.21.23 which is lower and thus I assume older?
SecureGSM said:
Just to clarify on this issue with low reception for some Polaris handsets:
Manufacturer has replaced some micro electronic components in some batches of Polaris.
Stock standard radio 1.58.21.23 and others has no support for those new components and therefore new handsets suffer low reception level issue.
1.58.21.23 radio Murata has support for new components included and maintains backward compatibility to earlier shipped handsets.
this radio will not affect ( improve or otherwise) reception quality for phones in older batches.
P.S. Radio is genuine.
Click to expand...
Click to collapse
I think you are incorrect, I had other radio work on my polaris for little while in 3g before they dont work, I think it is got something to do with mty
Thank you for the great discovery. This Murata thing is working! I wanted to go with this device to the warranty, but i said to give this a shot, because my TC had the same simptoms discribed (only that i tested in GSM, i use 3g only for net).
Where i had signal between 70-80% (2-3 lines) now i have 100% (i use this percentage because i have batterystatus program that tells me in percentage). Where one hour ago my TC didn't discover any signal now it has 70% (2-3 lines).
I tested with dslreports.com/mspeed before and after:
GSM/GPRS: 29kbits before - 40kbits after
3g: 141kbits before - 200kbits after
My device information:
ROM VERSION: 1.25.405.1 WWE
ROM dare: 12/11/07
Radio Version: 1.58.21.23 (it writes the SAME version i had before, no murata no nothing)
Protocol version: 25.65.30.04W
I have to mention one thing: on my box (the box with the htc touch cruise in it), where it has the bar code, it writes Rev. A (from Revision A). I think maybe all devices with revision A will benefit from this radio and other revision not... please specify what it writes on your package.
Thanks again! Now I can say I am sattisfied with my investment (If you look in my posts I baught a s-h htc tytn I with battery drain problems... now is for sale for just 180 Euro in Romania... i can ship it if someone wants it)
thanks you for your help.
I had a bad reception in GSM mode.
I downloaded this rom.
Now in my room my reception is full (after 2-3 lines).
And my touch cruise detect a 3g area (no before this radio rom).
I try in my office this morning (no signal with the original rom).
I'am enjoy and this Rom resolve my problem.
Hello, im also expiriencing same reception problems, but in my system alredy says that i have radio rom 1.58.21.23, the phone never got flashed, can be alredy the murato radio rom ?!
If not, can i try the murato radio rom with the "original" installed rom that came with de device ?
Anyone knows where can i get this current rom i have or maybe back it up if i want to roll it back ?
Some users expirienced some attery drains after flash with murato... what about you guys ?
Regards, Ricardo.
yrsmart said:
Hello, im also expiriencing same reception problems, but in my system alredy says that i have radio rom 1.58.21.23, the phone never got flashed, can be alredy the murato radio rom ?!
If not, can i try the murato radio rom with the "original" installed rom that came with de device ?
Anyone knows where can i get this current rom i have or maybe back it up if i want to roll it back ?
Some users expirienced some attery drains after flash with murato... what about you guys ?
Regards, Ricardo.
Click to expand...
Click to collapse
did you buy "second-hand" so it might have been already used with a rom and been restored to "original" state before sold to you?
you can overwrite the rom even if it has the same version number.
i have no battery issues with the murata radio only rom.

[Q] bluetooth/wifi does not connect

so i have am htc leo , enrgy rom, radio 2.15.50.14 rom version 27.dec.2010 wwe,
i can't make my bluetooth work or wifi in normal rage , bluetooth works only within 5-10 cm no more and wifi... 30-40 cm ,it sais that cannot find device/ network etc.. i'm from romania, and some dude told me taht i can't do anything because i have a t-mobile ... true? my batery life and orange internet conection is greant ,signal also, no problem with the phone at all just this ones.. but enought to regret buying it i never tested with stock rom....
sory for my bad english .... if u have a clue what to do.... please help
Not sure if I can offer a lot of help here but just to be sure you have checked all of your settings haven't you? Did you you flash the ROM to the phone or was it on the phone when you got the phone?
T-Macgnolia said:
Not sure if I can offer a lot of help here but just to be sure you have checked all of your settings haven't you? Did you you flash the ROM to the phone or was it on the phone when you got the phone?
Click to expand...
Click to collapse
i bought it with an older energy, ies i checked all options ... the problem is the range ... it works just fine when is near (5-10 cm) for example to send a video i need the other phone on top of mine if i lift it at a certain point stops if i let it dows the transfer continues... a simple question would be the radio version affects also wifi and bluetooth ? could be a problem form wrog instal a rom from old user ?
BladeLove4Hate said:
i bought it with an older energy, ies i checked all options ... the problem is the range ... it works just fine when is near (5-10 cm) for example to send a video i need the other phone on top of mine if i lift it at a certain point stops if i let it dows the transfer continues... a simple question would be the radio version affects also wifi and bluetooth ? could be a problem form wrog instal a rom from old user ?
Click to expand...
Click to collapse
AsFor your question yes the radio does control WiFi and Bluetooth and maybe a different radio version would help you out. But be aware if you have a T-Mobile HD2 you can not flash a 2.04.50.zz, 2.05.50.XDA, or any x.xx.51.xx radio to they will brick a TMOUS HD2. Go to the HTC HD2 Master Radio Thread to download different radio versions. Here is a link to it.
http://forum.xda-developers.com/showthread.php?t=611787
Also you can try doing a hard reset of the HD2 by holding down the volume up and down button while powering on your HD2 and it will bring cupcake stern with instructions on it. Just follow the instructions on the screencto reset the HD2. Make sure to use Microsoft My Phone or a equivalent app to back up you personal info before you hard reset your HD2.
sounds to me like a hardware problem. this is because (i think) the hd2 uses the same antenna and/or chipset for bluetooth+wifi. i remember reading some threads in which people posted the exact same symptoms as the OP and the problem turned out to be some loose/broken antenna wire inside the device.

[Q] Do I have to restore to WM 6.5?

I had a nand build of android installed on my HD2, but through various circumstances that phone cracked in half. So, I bought another HD2 this time used and when I popped my SIM card in I noticed it didn't have very good service.
Nonetheless, I was excited to have a working phone again, so I rushed and installed android on it. Now I can hardly get service much less internet, and I've messed around with a bunch of radios and none have helped so I assume it's a problem with the rilphone.dll. Do I have to reset to WM 6.5 to change the rilphone.dll or is it possible on android?
rilphone.dll is a windows file, nothing to do with android, so yes, you would need to be running winmo, however all reports say you cant change it manually (well you can but it wont work) it needs to be cooked in using a kitchen.
In the 20 months ive been browsing the hd2 section, ive never seen any posts saying rilphone made any difference to reception problems.
In that case, any idea why two phones running identical software would get wildly different service?
could be damaged / faulty / dismounted aerial inside, , ever taken any hard knocks?
Shaancc said:
In that case, any idea why two phones running identical software would get wildly different service?
Click to expand...
Click to collapse
Maybe they got different radio roms?
sp pls check your radio version.
Settings->About Phone: Baseband-Version:
Generally version 2.15.50.14 works best for most of the users.
j4n87 said:
Maybe they got different radio roms?
sp pls check your radio version.
Settings->About Phone: Baseband-Version:
Generally version 2.15.50.14 works best for most of the users.
Click to expand...
Click to collapse
i second that, when i was on winmo and changed over to android my signal wasnt at its best untill i flashed new version of radio....
check this site RADIO (CLICK HERE)

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