[Q] Should I change baseband ?? - Sony Ericsson Xperia Neo, Pro

I've got bad reception. At home sometimes no bars, no reception, or sometimes 1-2 bars. If I get to a window I get 2 bars tops.
Outside it sometimes disconnects and I have to reboot.
Drives me nuts.
I have another older smartphone at home that's 3g - same carrier - full reception.
In Neo V Battery life is bad. At "about phone" I see it changing all the time, I didn't have the chance to check outside, but due the constant disconnections outside I figure it's also changing.
Is changing the baseband the way to go?
The original BB was 4.1.B.0.587 baseband (77)
Now it appears as 8x55a-aaabqoazm-203028g-77 (under "about phone")
I'm running CM10 nightlies
If I put the wrong baseband can it brick the phone?
Should I flash 4.1.B.0.587 baseband (77) on cm10 (JB)?
Any better baseband than 77 (I'm Israeli on a 850/2100 network)?
Lots of question, you don't have to answer all, any help would be greatly appreciated.

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veepe said:
I've got bad reception. At home sometimes no bars, no reception, or sometimes 1-2 bars. If I get to a window I get 2 bars tops.
Outside it sometimes disconnects and I have to reboot.
Drives me nuts.
I have another older smartphone at home that's 3g - same carrier - full reception.
In Neo V Battery life is bad. At "about phone" I see it changing all the time, I didn't have the chance to check outside, but due the constant disconnections outside I figure it's also changing.
Is changing the baseband the way to go?
The original BB was 4.1.B.0.587 baseband (77)
Now it appears as 8x55a-aaabqoazm-203028g-77 (under "about phone")
I'm running CM10 nightlies
If I put the wrong baseband can it brick the phone?
Should I flash 4.1.B.0.587 baseband (77) on cm10 (JB)?
Any better baseband than 77 (I'm Israeli on a 850/2100 network)?
Lots of question, you don't have to answer all, any help would be greatly appreciated.
Click to expand...
Click to collapse
As u say it appears on 77 in about phone, its already on 77 baseband of .587 firmware.. I don't know whether you have got the update of .13 firmware in your place but as far as i know, there isn't any ftf file available for .13 firmware.. The new firmware comes with a new baseband too.. So till then 77 is latest.. just give it a check though.. I told you whatever i knew..
Sent from my Xperia Neo V using xda premium

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@veepe:
Try different SIM Cards if they give you full reception, it maybe the problem with your SIM Card.
If this doesn't work,
Try reinstalling everything from the scratch. First, Flash ICS .ftf using Flashtool & start your phone.
Check if you have proper network.
If there is proper network, then flash kernel from CM10 zip, Install ROM via Recovery, Then check your network.
Now if the problem occurs, it means the problem is with the CM10 ROM. Then you'll have to wait until it's fixed & stay on stock ROM or try other ROMs...
For more refer this: http://forum.xda-developers.com/showthread.php?t=1590383

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well, i tried everything - all basebands, flashed different stock firmwares with original kernels for both mt11i and mt11a (mine) - no improvement.
It's definitely something in the phone, the sim works great in another phone. Tried 3 diff sims in the problematic phone.
I'm thinking it maybe related to a water damage I had a few months ago. I went to a lab right after that for a preventive treatment, maybe something's wrong with the hardware.

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If changing softwares isn't working, there is a high chance that this is a hardware problem. You should get it repaired then...
Good Luck!