Neo V & china network problem

[#1]

i want to use my german neo v for the next weeks at china. but entering a chinese sim card, i can't get a network. the networks are available, but not usable.

is there any suggestion for?

[#2]

further information: this mobile is not locked to my sim card in germany.it's just a free bought one.

[MarlonUk1]

you tried the chinese sim while still on germany? unless you have roaming service, the sim would not work.

[#4]

i am currently at china.

took out my german sim and entered a chinese one.

as i look to network connections, 3 chinese mobile networks are available, but i can't connect to.

the sim card is valid and works fine in a chinese mobile phone, but i want to use my own german neo v. it's not usefull to buy a new chinese smartphone now for my 6 weeks trip here.

background:

walking around here at chengdu is hard without any navigation. so being online with a chinese mobile network is comfortable in using google maps.

also translating from german to chinese is so easy with online translation ... very useful.

so i want to be online with my german smartphone neo v at china with a chinese sim card.

i didn't had problems like these with my htc last year. also german version and chinese sim card ... worked great. why do i have probs with the "great" sony now?

[#5]

and with network i mean the mobilecell. not any Wifii. thats working fine as normal.

[MarlonUk1]

try to set the network mode on gsm only

China

900

3G 2100

Germany

900

1800

3G 2100

2G Network	GSM 850 / 900 / 1800 / 1900
3G Network	HSDPA 900 / 2100 - MT11i
	HSDPA 850 / 1900 / 2100 - MT11a

its supposed to work,