1 more week left here in the phils then its back to uk i know i will cry like a baby on that day, i will miss my family here and the cats and dogs, and everything else.

can anyone tell me if the cherry mobile phones will work in uk? ive seen a real small phone for 1500peso that i like, will be good for when im out on my mountain bike, are these the frequencies i need to look for:
UK CELLULAR FREQUENCY RANGES


GSM 900 Frequency Range:

Mobile transmit (BTx) 880 - 915 MHz
Base transmit (MTx) 925 - 960 MHz


GSM 1800 Frequency Range:

Mobile transmit (BTx) 1710 - 1785 MHz
Base transmit (MTx) 1805 - 1880 MHz.

also i have a galaxy s3 on the uk 3 network on contract, ive put a pay as u go sim card in but its not working, has signal and say emergency calls only. could i get the phone unlocked or would that stop my 3 network working when im back in uk