Hey, your issues can be solved with 50 usd.
- sms: ok 100% for GSM network
- 3G no: due to baseband (hardware) limitation but 2G-2.5G is very smooth
- OS verson: 2.2.3 or 4.0.4 at your choice
Contact me: [email protected]
I'm in Vietnam.
SOURCE: how to unlock sony xperia acro is11s AU by KDDI
You can get the unlock code from service provider and unlock it.
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