You are not alone with this problem buddy.
I too experience it.
I do not believe this to be localized to Spain.
My Phone is on Orange in the UK.
I will note - I was a lucky one. I have never had any random FCs or BSODs with my LG before this Rom. Even 10C / D was pretty stable for me.
I was previously running CM7.1
I ran back to ext3 - Then Installed KDZ for 10D european Open. (I realise back to EXT3 may probably not have been required to flash the KDZ for froyo 10d - but Sod it, I was trying to be safe!!)
Rooted with superoneclick
Wiped system, Cache and Dalvik.
Installed Pauls Deox. 20L
Installed Extracted Baseband
Installed Ril (GetRil)
It did work ok for a while, but after about an hour I picked up my phone to check why I hadn't received a pretty important phone call, and low and behold - the white reception icons.
Trying to goto airplane mode causes an error - with a popup "Network is Unavailable". The only way to get it back is to restart the phone. BUT if you restart - the battery displays about 60% less than what it displayed before you restarted (with the crashed radio)
Something is massively draining the battery.
I figured I would then flash the KDZ
Then used the recommended root guide for gingerbread from XDA, worked a treat.
The same problem has occurred since I tried that - multiple times. And the drain is extremely bad. Late for work on Friday due to the alarm pulling my phone out of standby and the battery draining before my snooze (5 mins) has set alarm off again.
I Have tried the four fls Baseband files (I know the KDZ includes the baseband flash, but I wanted to cover everything)
I confirmed my Ril was correct for the baseband I was using with each flash, using GetRIl from MarketPlace.
Was P--sing me off so much, I have rolled back to FR19, with HP Extreme, and switch999, converted to EXT4.
Would love to get gingerbread back - but I can't use it in a state whereby the alarms might not even go off - or I am out and about and people cannot get hold of me. I'm the head of software development and systems administrator at my place of work - I get a crazy amount of phone calls!
One thing to try - is this:
Goto Mobile Network settings in wireless settings
Change your network type to WCDMA Only (3g Only) and make sure use only 2g network isnt ticked.
Im sure when I was trying to debug this, WCDMA was working for me without the error - but I didn't test it for long enough as I still noticed slight battery drain. Probably partly due to always using 3G, also the LG Onscreen Keyboard (VNC Type app) is using a LOT more power in this rom - Previous roms battery stats used to put it near the bottom of the list - but on this Rom its usually a rock solid 3rd of 4th placer at 20-odd percentish!
I can also add this - Touch wood (knock on wood for you americans around here
) - I didnt have any GPS problems with 20L
(for what its worth!!)